Ngoại ngữ [TA-Bài tập]Kỹ năng đọc - Bài tập ĐỌC HIỂU (Không spam trong topic này)

[hocmai.tienganh]

[TẶNG BẠN] TRỌN BỘ Bí kíp học tốt 08 môn
Chắc suất Đại học top - Giữ chỗ ngay!!

ĐĂNG BÀI NGAY để cùng trao đổi với các thành viên siêu nhiệt tình & dễ thương trên diễn đàn.

Bên cạnh bài tập điền từ là bài tập đọc hiểu. Bài tập dạng này nói khó cũng không hẳn mà nói dễ thì càng sai. Những câu hỏi về chi tiết, có thể dễ dàng nhìn thấy trong bài thì không nói làm gì, nhưng những câu về nghĩa của từ/cụm từ, đại ý đoạn văn lại luôn gây nhầm lẫn cho học sinh.

Đó là lý do vì sao chúng ta phải dành nhiều thời gian hơn vào loại bài khó nhằn này, luyện tập nhiều hơn (cho dù vẫn biết nó chẳng ngon lành gì). Nhưng trái ngọt chính là điểm mà chúng ta có được. Có một số phương pháp làm bài đã được đưa ra tại đây, nó sẽ giúp các em làm bài đọc hiểu dễ dàng hơn

Chinh phục luôn là niềm đam mê bất tận của người trẻ :khi (17):

Hãy bắt đầu bằng một bài "nhẹ nhàng, tình cảm"

Đọc kỹ đoạn văn sau và chọn phương án đúng (ứng với A hoặc B, C, D) cho mỗi câu từ 1 đến 5.

For many people the language of the Internet is English. “World, Wide, Web: Three English Words” was the name of an article by Michael Specter in the New York Times a few years ago. The article went on to say: “If you want to take full advantage of the Internet, there is only one real way to do it: learn English.”

In general, it is not difficult to learn to use Internet services. But although Internet services are rather easy to use, you will have considerable difficulties if you are not familiar with English. In fact, a good knowledge of English is one of the most important aspects that help you use the Internet.

Learning to use a new Internet service may take a few hours, a few days or some weeks, but it takes years to learn a language so that you can use it fluently and confidently. Of course, when you know some English, you can learn more just by using it on the Internet. But at least your English should be good enough to understand commonly used words and to know what to do on the Internet.

Câu 1: It ______________ to learn to use Internet services.
A. is easy
B. is difficult
C. takes a few minutes
D. takes a very long time
Câu 2: According to the article by Michael Specter, you should _________ to take full advantage
of the Internet.
A. learn to type fast
B. learn to use the Internet services
C. learn English
D. learn the names of some websites
Câu 3: Learning to use a language fluently and confidently may take ________.
A. a few days
B. a few hours
C. a few weeks
D. a few years
Câu 4: If you do not know English very well, you will______ when using the Internet.
A. be laughed at
B. have many difficulties
C. feel more comfortable
D. spend a few days
Câu 5: Which of the following could be the best title for the passage?
A. “English and the Internet”
B. “Ways to take full advantage of the Internet”
C. “Practising your English on the Internet”
D. “How to use Internet services”

(Đáp án sẽ được đưa ra khi có từ 3 bài trả lời trở lên hoặc 3 ngày sau khi đề bài được đăng, tùy theo điều kiện nào đến trước. Hocmai.tienganh sẽ cảm ơn bài viết đúng 100%)


Xin chào, xin chào~
Ghé xem một số nội dung tâm đắc của team Anh chúng mình nhé

Spoiler: Bấm đi nào~

[Hướng dẫn] Tìm kiếm nội dung box Ngoại Ngữ
[Chia sẻ] Kinh nghiệm ôn thi HSG tỉnh và đỗ trường chuyên Anh
Luyện từ vựng và ngữ pháp nâng cao | Ôn Chuyên và HSG Tỉnh
[TIPs] Bài tập viết lại câu (Rewrite the sentences)
Luyện tập phrasal verbs
[Tổng hợp] Study Idioms
[Chia sẻ] 33 cách trở thành "chiến thần" trong phòng thi IELTS
Reading made easy
[Tổng hợp] Hướng dẫn viết luận theo chủ đề
How to write right
Academic vocabulary used in essays

 

[crybaby_style]

Em làm thử trước nha :
For many people the language of the Internet is English. “World, Wide, Web: Three English Words” was the name of an article by Michael Specter in the New York Times a few years ago. The article went on to say: “If you want to take full advantage of the Internet, there is only one real way to do it: learn English.”

In general, it is not difficult to learn to use Internet services. But although Internet services are rather easy to use, you will have considerable difficulties if you are not familiar with English. In fact, a good knowledge of English is one of the most important aspects that help you use the Internet.

Learning to use a new Internet service may take a few hours, a few days or some weeks, but it takes years to learn a language so that you can use it fluently and confidently. Of course, when you know some English, you can learn more just by using it on the Internet. But at least your English should be good enough to understand commonly used words and to know what to do on the Internet.

Câu 1: It ______________ to learn to use Internet services.
A. is easy
B. is difficult
C. takes a few minutes
D. takes a very long time
Câu 2: According to the article by Michael Specter, you should _________ to take full advantage
of the Internet.
A. learn to type fast
B. learn to use the Internet services
C. learn English
D. learn the names of some websites
Câu 3: Learning to use a language fluently and confidently may take ________.
A. a few days
B. a few hours
C. a few weeks
D. a few years
Câu 4: If you do not know English very well, you will______ when using the Internet.
A. be laughed at
B. have many difficulties
C. feel more comfortable
D. spend a few days
Câu 5: Which of the following could be the best title for the passage?
A. “English and the Internet”
B. “Ways to take full advantage of the Internet”
C. “Practising your English on the Internet”
D. “How to use Internet services”

 

[hocmai.tienganh]

ĐÁP ÁN BÀI TẬP Re01
​

Câu 1: It ______________ to learn to use Internet services.
A. is easy
B. is difficult
C. takes a few minutes
D. takes a very long time
Câu 2: According to the article by Michael Specter, you should _________ to take full advantage
of the Internet.
A. learn to type fast
B. learn to use the Internet services
C. learn English
D. learn the names of some websites
Câu 3: Learning to use a language fluently and confidently may take ________.
A. a few days
B. a few hours
C. a few weeks
D. a few years
Câu 4: If you do not know English very well, you will______ when using the Internet.
A. be laughed at
B. have many difficulties
C. feel more comfortable
D. spend a few days
Câu 5: Which of the following could be the best title for the passage?
A. “English and the Internet”
B. “Ways to take full advantage of the Internet”
C. “Practising your English on the Internet”
D. “How to use Internet services”

--------------------------------------------------------------

P/s: Hình như bài này dễ quá ý nhỉ? :khi (100):

Nhiệt liệt hoan nghênh bạn crybaby_style :khi (189): Mong em giữ vững tinh thần này :khi (60):

 

[hocmai.tienganh]

Tiếp tục nhỉ?! Dài hơn tí thôi ý mà )

Re02. Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 1 to 10.

Today we take electricity for granted and perhaps we do not realize just how useful this discovery has been. Steam was the first invention that replaced wind power. It was used to drive engines and was passed through pipes and radiators to warm rooms. Petrol mixed with air was the next invention that provided power. Exploded in a cylinder, it drove a motor engine. Beyond these simple and direct uses, those forms have not much adaptability.

On the other hand, we make use of electricity in thousands of ways. From the powerful voltages that drive our electric trains to the tiny current needed to work a simple calculator, and from the huge electric magnet in steel works that can lift 10 tons to the tiny electric magnet in a doorbell, all are powered by electricity. An electric current can be made with equal ease to heat a huge mass of molten metal in a furnace, or to boil a jug for a cup of coffee.

Other than atomic energy, which has not as yet been harnessed to the full, electricity is the greatest power in the world. It is flexible, and so adaptable for any task for which it is wanted. It travels so easily and with incredible speed along wires or conductors that it can be supplied instantly over vast distances.

To generate electricity, huge turbines or generators must be turned. In Australia they use coal or water to drive this machinery. When dams are built, falling water is used to drive the turbines without polluting the atmosphere with smoke from coal.

Atomic power is used in several countries but there is always the fear of an accident. A tragedy once occurred at Chernobyl, in Ukraine, at an atomic power plant used to make electricity. The reactor leaked, which caused many deaths through radiation.
Now scientists are examining new ways of creating electricity without harmful effects to the environment. They may harness the tides as they flow in and out of bays. Most importantly, they hope to trap sunlight more efficiently. We do use solar heaters for swimming pools but as yet improvement in the capacity of the solar cells to create more current is necessary. When this happens, electric cars will be viable and the world will rid itself of the toxic gases given off by trucks and cars that burn fossil fuels.

Question 1: The author mentions the sources of energy such as wind, steam, petrol in the first paragraph to ______.
A. suggest that electricity should be alternated with safer sources of energy
B. emphasize the usefulness and adaptability of electricity
C. imply that electricity is not the only useful source of energy
D. discuss which source of energy can be a suitable alternative to electricity
Question 2: Before electricity, what was sometimes passed through pipes to heat rooms?
A. Gas.
B. Petrol.
C. Steam.
D. Hot wind.
Question 3: What does the author mean by saying that electricity is flexible?
A. It is cheap and easy to use.
B. It is used to drive motor engines.
C. It can be adapted to various uses.
D. It can be made with ease.
Question 4: What do we call machines that make electricity?
A. Voltages. B. Electric magnets.
C. Generators or turbines. D. Pipes and radiators.
Question 5: The main forms of power used to generate electricity in Australia are ______.
A. atomic power and water
B. water and coal
C. sunlight and wind power
D. wind and gas
Question 6: The word "they" in the last paragraph refers to ______.
A. harmful effects
B. the tides
C. scientists
D. new ways
Question 7: Electric magnets are used in steel works to ______.
A. lift heavy weights up to ten tons
B. test the steel for strength
C. heat the molten steel
D. boil a jug of water
Question 8: The advantage of harnessing the power of the tides and of sunlight to generate electricity is that they ______.
A. do not pollute the environment B. are more reliable
C. are more adaptable D. do not require attention
Question 9: Which of the following power sources causes pollution by emitting harmful gases?
A. Sunlight.
B. Petrol.
C. Water.
D. Wind.
Question 10: The best title for this passage could be ______.
A. “Types of Power Plants”
B. “Electricity: Harmful Effects on Our Life”
C. “How to Produce Electricity”
D. “Why Electricity Is So Remarkable”

(Đáp án sẽ được đưa ra khi có từ 03 bài trả lời trở lên hoặc 03 ngày sau khi đề bài được đăng (06.10.2012), tùy theo điều kiện nào đến trước. Hocmai.tienganh sẽ cảm ơn bài viết đúng 100%)

 

[thien0526]

Question 1: The author mentions the sources of energy such as wind, steam, petrol in the first paragraph to ______.
A. suggest that electricity should be alternated with safer sources of energy
B. emphasize the usefulness and adaptability of electricity
C. imply that electricity is not the only useful source of energy
D. discuss which source of energy can be a suitable alternative to electricity
Question 2: Before electricity, what was sometimes passed through pipes to heat rooms?
A. Gas.
B. Petrol.
C. Steam.
D. Hot wind.
Question 3: What does the author mean by saying that electricity is flexible?
A. It is cheap and easy to use.
B. It is used to drive motor engines.
C. It can be adapted to various uses.
D. It can be made with ease.
Question 4: What do we call machines that make electricity?
A. Voltages. B. Electric magnets.
C. Generators or turbines. D. Pipes and radiators.
Question 5: The main forms of power used to generate electricity in Australia are ______.
A. atomic power and water
B. water and coal
C. sunlight and wind power
D. wind and gas
Question 6: The word "they" in the last paragraph refers to ______.
A. harmful effects
B. the tides
C. scientists
D. new ways
Question 7: Electric magnets are used in steel works to ______.
A. lift heavy weights up to ten tons
B. test the steel for strength
C. heat the molten steel
D. boil a jug of water
Question 8: The advantage of harnessing the power of the tides and of sunlight to generate electricity is that they ______.
A. do not pollute the environment B. are more reliable
C. are more adaptable D. do not require attention
Question 9: Which of the following power sources causes pollution by emitting harmful gases?
A. Sunlight.
B. Petrol.
C. Water.
D. Wind.
Question 10: The best title for this passage could be ______.
A. “Types of Power Plants”
B. “Electricity: Harmful Effects on Our Life”
C. “How to Produce Electricity”
D. “Why Electricity Is So Remarkable”

 

[dla]

Question 6: The word "they" in the last paragraph refers to ______.
A. harmful effects
B. the tides
C. scientists
D. new ways

đoạn cuối có mấy từ they lận, biết "they" nào mà điền ạ?

 

[ngocan90]

Nightmare!!!!!! :Mpetrified:


Re02. Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 1 to 10.

Today we take electricity for granted and perhaps we do not realize just how useful this discovery has been. Steam was the first invention that replaced wind power. It was used to drive engines and was passed through pipes and radiators to warm rooms. Petrol mixed with air was the next invention that provided power. Exploded in a cylinder, it drove a motor engine. Beyond these simple and direct uses, those forms have not much adaptability.

On the other hand, we make use of electricity in thousands of ways. From the powerful voltages that drive our electric trains to the tiny current needed to work a simple calculator, and from the huge electric magnet in steel works that can lift 10 tons to the tiny electric magnet in a doorbell, all are powered by electricity. An electric current can be made with equal ease to heat a huge mass of molten metal in a furnace, or to boil a jug for a cup of coffee.

Other than atomic energy, which has not as yet been harnessed to the full, electricity is the greatest power in the world. It is flexible, and so adaptable for any task for which it is wanted. It travels so easily and with incredible speed along wires or conductors that it can be supplied instantly over vast distances.

To generate electricity, huge turbines or generators must be turned. In Australia they use coal or water to drive this machinery. When dams are built, falling water is used to drive the turbines without polluting the atmosphere with smoke from coal.

Atomic power is used in several countries but there is always the fear of an accident. A tragedy once occurred at Chernobyl, in Ukraine, at an atomic power plant used to make electricity. The reactor leaked, which caused many deaths through radiation.
Now scientists are examining new ways of creating electricity without harmful effects to the environment. They may harness the tides as they flow in and out of bays. Most importantly, they hope to trap sunlight more efficiently. We do use solar heaters for swimming pools but as yet improvement in the capacity of the solar cells to create more current is necessary. When this happens, electric cars will be viable and the world will rid itself of the toxic gases given off by trucks and cars that burn fossil fuels.

Question 1: The author mentions the sources of energy such as wind, steam, petrol in the first paragraph to ______.
A. suggest that electricity should be alternated with safer sources of energy
B. emphasize the usefulness and adaptability of electricity
C. imply that electricity is not the only useful source of energy
D. discuss which source of energy can be a suitable alternative to electricity
Question 2: Before electricity, what was sometimes passed through pipes to heat rooms?
A. Gas.
B. Petrol.
C. Steam.
D. Hot wind.
Question 3: What does the author mean by saying that electricity is flexible?
A. It is cheap and easy to use.
B. It is used to drive motor engines.
C. It can be adapted to various uses.
D. It can be made with ease.
Question 4: What do we call machines that make electricity?
A. Voltages.
B. Electric magnets.
C. Generators or turbines.
D. Pipes and radiators.
Question 5: The main forms of power used to generate electricity in Australia are ______.
A. atomic power and water
B. water and coal
C. sunlight and wind power
D. wind and gas
Question 6: The word "they" in the last paragraph refers to ______.
A. harmful effects
B. the tides => They 2
C. scientists => They 1
D. new ways
Question 7: Electric magnets are used in steel works to ______.
A. lift heavy weights up to ten tons
B. test the steel for strength
C. heat the molten steel
D. boil a jug of water
Question 8: The advantage of harnessing the power of the tides and of sunlight to generate electricity is that they ______.
A. do not pollute the environment
B. are more reliable
C. are more adaptable
D. do not require attention
Question 9: Which of the following power sources causes pollution by emitting harmful gases?
A. Sunlight.
B. Petrol.
C. Water.
D. Wind.
Question 10: The best title for this passage could be ______.
A. “Types of Power Plants”
B. “Electricity: Harmful Effects on Our Life”
C. “How to Produce Electricity”
D. “Why Electricity Is So Remarkable”

Mèo vẫn hoàn mèo. Ác mộng vẫn hoàn ác mộng :M015:

 

[hocmai.tienganh]

Bài của thien0526 là đáp án của bài tập Re02 này.

Hocmai.tienganh rất xin lỗi vì sơ suất không bôi đen từ "they" trong đoạn cuối (thế mà vẫn có đáp án chính xác 100% nhể? Kỳ diệu thế ) ). Câu đó phải là: They may harness the tides as they flow in and out of bays. Hocmai.tienganh sẽ rút kinh nghiệm lần sau.
Chúc mừng thien0526 và nhiệt liệt hoan nghênh tinh thần của các em còn lại! :khi (167):

Chúc các em có một cuối tuần vui vẻ!
___________________________________________________________

Lược dịch:

Ngày nay chúng ta được cấp điện nên có lẽ chúng ta không nhận ra khám phá này hữu ích như thế nào. Hơi nước là phát minh đầu tiên dùng thay thế cho năng lượng gió. Nó được sử dụng để điều khiển động cơ và được dẫn qua các đường ống và lò sưởi để sưởi ấm các căn phòng. Xăng trộn với không khí là phát minh tiếp theo để cung cấp năng lượng. Hỗn hợp này nổ trong một xi lanh và làm động cơ hoạt động. Ngoài các cách sử dụng đơn giản và trực tiếp này, các dạng năng lượng kể trên không có nhiều khả năng thích ứng.
Mặt khác, chúng ta lại sử dụng điện bằng hàng ngàn cách khác nhau. Từ việc dùng điện áp mạnh để điều khiển những đoàn tàu điện hiện đại đến dòng điện nhỏ chỉ để làm một con tính đơn gian, và từ dòng điện từ trường lớn trong các nhà máy thép có thể nâng đến 10 tấn tới dòng từ trường trong một chiếc chuông cửa, tất cả đều là năng lượng điện. Một dòng điện có thể dễ dàng làm nóng chảy một khối lượng kim loại lớn trong lò luyện hay chỉ đơn giản đun sôi lượng nước cho một tách cafe.
Nếu không kể đến điện nguyên tử - cái mà vẫn chưa được khai thác triệt để, điện là nguồn năng lượng lớn nhất trên thế giới. Nó linh hoạt, và có khả năng đáp ứng cho bất cứ nhiện vụ nào. Nó truyền đi dễ dàng và với tốc độ đáng kinh ngạc trong dây kim loại hoặc dây dẫn, vì vậy người ta có thể truyền tải điện ngay tức khắc trên phạm vi lớn.
Để tạo ra điện, những tua-bin lớn hoặc máy phát điện phải được quay. Ở Úc, người ta sử dụng than hoặc nước để vận hành loại máy móc này. Khi các con đập được xây dựng, nước đổ xuống làm quay các tua-bin và không làm ô nhiễm môi trường như khói than.
Năng lượng hạt nhân được dùng ở một vài quốc giá nhưng vẫn còn tồn tại nỗi lo sợ về rủi ro. Một bi kịch đã từng xảy ra ở Chernobyl, Ukraine, tại một nhà máy điện hạt nhân được dùng để sản xuất điện. Lò phản ứng bị rò rỉ và gây ra nhiều trường hợp tử vong do nhiễm phóng xạ.
Ngày nay, các nhà khoa học đang nghiên cứu các cách tạo ra điện mới mà không tác động xấu đến môi trường. Họ sử dụng thủy triều khi chúng chảy vào và rút đi ở các con vịnh. Quan trọng hơn cả, các nhà khoa học hy vọng việc sử dụng ánh sáng mặt trời sẽ hiệu quả hơn. Chúng tôi sử dụng các lò sưởi năng lượng mặt trời cho các bể bơi nhưng vẫn chưa có cải thiện nào trong khả năng của các tế bào quang học để tạo ra nhiều hơn nhu cầu hiện tại. Khi điều đó xảy ra, ô tô điện sẽ khả thi và thế thời sẽ có thể loại bỏ lượng khí độc hại từ khói xe tải, ô tô đang tiêu tốn hết những nguồn nhiêu liệu hóa thạch.

 

[hocmai.tienganh]

Quà cuối tuần cho mọi người )

Bài tập Re03. Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions.

The atmosphere of Venus is quite different from ours. Measurements taken from the Earth show a high concentration of carton dioxide in the atmosphere of Venus. In fact, carbon dioxide makes up 96 percent of Venus’ atmosphere; nitrogen makes up almost all the rest. The Earth’s atmosphere, by comparison, is mainly nitrogen, with a fair amount of oxygen as well. Carbon dioxide makes up less than 0.1 percent of the terrestrial atmosphere.
The surface pressure of Venus’ atmosphere is 90 times higher than the pressure of the Earth’s atmosphere, as a result of the large amount of carbon dioxide in the former. Throughout Earth’s history, carbon dioxide on Earth has mixed with rain to dissolve rocks; the dissolved rock and carbon dioxide eventually flow into oceans, where they precipitate to form new terrestrial rocks, often with the help of life-forms. If this carbon dioxide were released from the Earth’s rocks, along with lower carbon dioxide trapped in seawater, our atmosphere would become as dense and have as high a pressure as that of Venus. Venus, slightly closer to the Sun than Earth and thus hotter, had no oceans in which carbon dioxide could dissolve or life to help take up the carbon.
Also, Venus has probable lost almost all the water it ever had. Since Venus is closer to the Sun than Earth is, its lower atmosphere was hotter even early on. The result was that more water vapor went into its upper atmosphere, where solar ultraviolet rays broke in up into hydrogen and oxygen. The hydrogen, a light gas, escaped easily; the oxygen has combined with other gasses or with iron on Venus’ surface.
Studies from the Earth show that the clouds on Venus are primarily composed of droplets of sulfuric acid, with water droplets mixed in. Sulfuric acid may sound strange as a cloud constituent, but the Earth too has a significant layer of sulfuric acid droplets in its stratosphere. However, the water in the lower layers of the Earth’s atmosphere, circulating because of weather, washes the sulfur compounds out of these layers, whereas Venus has sulfur compounds in the lower layers of its atmosphere in addition to those in its clouds.

01. What does the passage mainly discuss?
A. Atmospheric differences between Venus and Earth.
B. How Venus lost the water it once had.
C. The influence of the Sun on Venus.
D. A comparison between the upper and the lower atmosphere on Venus.

02. In terms of their amount in the atmosphere, what is the proportion of carbon dioxide on Earth and on Venus?
A. almost 1000
B. almost 100
C. almost 1/3
D. almost 90

03. What are the gases that Venus’s atmosphere mostly consists of?
A. Carbon dioxide, nitrogen, and oxygen.
B. Carbon dioxide and oxygen.
C. Nitrogen, oxygen, and hydrogen.
D. Carbon dioxide and nitrogen.

04. What can possibly be the reason that there is so much carbon dioxide in Venus’ atmosphere?
A. There is no oxygen.
B. The temperatures are too high.
C. There is no water and life on Venus.
D. There is no oxygen and water on Venus.

05. What may be the explanation of low air pressure on earth?
A. Oxygen readily available
B. Water evaporating
C. Carbon dioxide dissolved in water
D. Precipitation

06. According to the passage, what causes Venus’ surface pressure?
A. Dissolving rocks
B. Frequent heavy rain
C. Its distance from the Sun
D. The composition of its atmosphere

07. What is the writer’s purpose with the sentence “If this carbon dioxide were released from the Earth’s rocks,...”?
A. To present a situation that is contrary to fact.
B. To convince readers that a certain process in harmless.
C. To describe an event that took place long ago.
D. To explain what is likely to happen in the future.

08. What may cause the disappearance of the water on Venus?
A. The prevalent amount of carbon dioxide
B. High temperature and the Sun’s ultraviolet rays
C. High temperature and low surface pressure
D. High surface pressure and low temperature.

09. According to the passage, which of the following has resulted from processes involving Earth’s carbon dioxide?
A. A steady increase in the density of Earth’s Atmosphere
B. An increase rate at which rock dissolves.
C. The accumulation of carbon dioxide in Earth’s rock
D. The expansion of Earth’s oceans

10. According to the passage, what happened to oxygen on Venus?
A. Most of it was absorbed into rocks.
B. It was released from water and then combined with other substances
C. It chemically combined with hydrogen from atmospheric water.
D. It has been slowly replacing carbon dioxide in Venus’ upper atmosphere.

(Đáp án sẽ được công bố sau khi có từ 03 người trở lên trả lời bài hoặc sau 03 ngày đăng bài (09.10.2012), tùy theo điều kiện nào đến trước. Bắt đầu từ ngày 03.10.2012, hocmai.tienganh sẽ post đáp án khi không có bài làm hoặc không có bài làm đúng 100% (và chữa câu sai); ngược lại hocmai.tienganh sẽ cảm ơn bài làm đúng 100% và coi đó là đáp án của bài tập tương ứng.)

 

[thien0526]

Hay không bằng hên mà chị :khi (58):

Nhận quà thôi :khi (64):


01. What does the passage mainly discuss?
A. Atmospheric differences between Venus and Earth.
B. How Venus lost the water it once had.
C. The influence of the Sun on Venus.
D. A comparison between the upper and the lower atmosphere on Venus.

02. In terms of their amount in the atmosphere, what is the proportion of carbon dioxide on Earth and on Venus?
A. almost 1000
B. almost 100
C. almost 1/3
D. almost 90

03. What are the gases that Venus’s atmosphere mostly consists of?
A. Carbon dioxide, nitrogen, and oxygen.
B. Carbon dioxide and oxygen.
C. Nitrogen, oxygen, and hydrogen.
D. Carbon dioxide and nitrogen.

04. What can possibly be the reason that there is so much carbon dioxide in Venus’ atmosphere?
A. There is no oxygen.
B. The temperatures are too high.
C. There is no water and life on Venus.
D. There is no oxygen and water on Venus.

05. What may be the explanation of low air pressure on earth?
A. Oxygen readily available
B. Water evaporating
C. Carbon dioxide dissolved in water
D. Precipitation

06. According to the passage, what causes Venus’ surface pressure?
A. Dissolving rocks
B. Frequent heavy rain
C. Its distance from the Sun
D. The composition of its atmosphere

07. What is the writer’s purpose with the sentence “If this carbon dioxide were released from the Earth’s rocks,...”?
A. To present a situation that is contrary to fact.
B. To convince readers that a certain process in harmless.
C. To describe an event that took place long ago.
D. To explain what is likely to happen in the future.

08. What may cause the disappearance of the water on Venus?
A. The prevalent amount of carbon dioxide
B. High temperature and the Sun’s ultraviolet rays
C. High temperature and low surface pressure
D. High surface pressure and low temperature.

09. According to the passage, which of the following has resulted from processes involving Earth’s carbon dioxide?
A. A steady increase in the density of Earth’s Atmosphere
B. An increase rate at which rock dissolves.
C. The accumulation of carbon dioxide in Earth’s rock
D. The expansion of Earth’s oceans

10. According to the passage, what happened to oxygen on Venus?
A. Most of it was absorbed into rocks.
B. It was released from water and then combined with other substances
C. It chemically combined with hydrogen from atmospheric water.
D. It has been slowly replacing carbon dioxide in Venus’ upper atmosphere.

 

[hocmai.tienganh]

Bài tập Re03. Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions.

The atmosphere of Venus is quite different from ours. Measurements taken from the Earth show a high concentration of carton dioxide in the atmosphere of Venus. In fact, carbon dioxide makes up 96 percent of Venus’ atmosphere; nitrogen makes up almost all the rest. The Earth’s atmosphere, by comparison, is mainly nitrogen, with a fair amount of oxygen as well. Carbon dioxide makes up less than 0.1 percent of the terrestrial atmosphere.
The surface pressure of Venus’ atmosphere is 90 times higher than the pressure of the Earth’s atmosphere, as a result of the large amount of carbon dioxide in the former. Throughout Earth’s history, carbon dioxide on Earth has mixed with rain to dissolve rocks; the dissolved rock and carbon dioxide eventually flow into oceans, where they precipitate to form new terrestrial rocks, often with the help of life-forms. If this carbon dioxide were released from the Earth’s rocks, along with lower carbon dioxide trapped in seawater, our atmosphere would become as dense and have as high a pressure as that of Venus. Venus, slightly closer to the Sun than Earth and thus hotter, had no oceans in which carbon dioxide could dissolve or life to help take up the carbon.
Also, Venus has probable lost almost all the water it ever had. Since Venus is closer to the Sun than Earth is, its lower atmosphere was hotter even early on. The result was that more water vapor went into its upper atmosphere, where solar ultraviolet rays broke in up into hydrogen and oxygen. The hydrogen, a light gas, escaped easily; the oxygen has combined with other gasses or with iron on Venus’ surface.
Studies from the Earth show that the clouds on Venus are primarily composed of droplets of sulfuric acid, with water droplets mixed in. Sulfuric acid may sound strange as a cloud constituent, but the Earth too has a significant layer of sulfuric acid droplets in its stratosphere. However, the water in the lower layers of the Earth’s atmosphere, circulating because of weather, washes the sulfur compounds out of these layers, whereas Venus has sulfur compounds in the lower layers of its atmosphere in addition to those in its clouds.

01. What does the passage mainly discuss?
A. Atmospheric differences between Venus and Earth.
B. How Venus lost the water it once had.
C. The influence of the Sun on Venus.
D. A comparison between the upper and the lower atmosphere on Venus.

02. In terms of their amount in the atmosphere, what is the proportion of carbon dioxide on Earth and on Venus?
A. almost 1000
B. almost 100
C. almost 1/3
D. almost 90

03. What are the gases that Venus’s atmosphere mostly consists of?
A. Carbon dioxide, nitrogen, and oxygen.
B. Carbon dioxide and oxygen.
C. Nitrogen, oxygen, and hydrogen.
D. Carbon dioxide and nitrogen.

04. What can possibly be the reason that there is so much carbon dioxide in Venus’ atmosphere?
A. There is no oxygen.
B. The temperatures are too high.
C. There is no water and life on Venus.
D. There is no oxygen and water on Venus.

05. What may be the explanation of low air pressure on earth?
A. Oxygen readily available
B. Water evaporating
C. Carbon dioxide dissolved in water
D. Precipitation

06. According to the passage, what causes Venus’ surface pressure?
A. Dissolving rocks
B. Frequent heavy rain
C. Its distance from the Sun
D. The composition of its atmosphere

07. What is the writer’s purpose with the sentence “If this carbon dioxide were released from the Earth’s rocks,...”?
A. To present a situation that is contrary to fact.
B. To convince readers that a certain process in harmless.
C. To describe an event that took place long ago.
D. To explain what is likely to happen in the future.

08. What may cause the disappearance of the water on Venus?
A. The prevalent amount of carbon dioxide
B. High temperature and the Sun’s ultraviolet rays
C. High temperature and low surface pressure
D. High surface pressure and low temperature.

09. According to the passage, which of the following has resulted from processes involving Earth’s carbon dioxide?
A. A steady increase in the density of Earth’s Atmosphere
B. An increase rate at which rock dissolves.
C. The accumulation of carbon dioxide in Earth’s rock
D. The expansion of Earth’s oceans

10. According to the passage, what happened to oxygen on Venus?
A. Most of it was absorbed into rocks.
B. It was released from water and then combined with other substances
C. It chemically combined with hydrogen from atmospheric water.
D. It has been slowly replacing carbon dioxide in Venus’ upper atmosphere.

-----------------------------------------------------------------------------------------------------
Lược dịch:

Không khí của Sao Kim khá khác so với hành tinh của chúng ta. Các đo đạc từ Trái Đất cho thấy một sự tập trung cao của Carbon Dioxide trong không khí của Sao Kim. Trên thực tế, carbon dioxide chiếm 96% không khí của Sao Kim; nitrogen chiếm hầu như phần còn lại. Không khí của Trái Đất, so với đó, thì đa phần là nitrogen, với lượng oxy tương đương. Carbon dioxide chiếm dưới 0.1 % không khí trái đất.

Áp lực bề mặt của bầu không khí của Sao Kim lớp gấp 90 lần so với áp lực của Trái Đất, do lượng lớn carbon dioxide ở Sao Kim. Trong suốt lịch sử Trái Đất, carbon dioxide trên Trái Đất đã hòa lẫn với mưa để mài mòn đá, đá bị mài mòn và carbon dioxide dần dần trôi ra các đại dương, nơi mà chúng ngưng tụ để tạo thành các loại đất đá mới, thường là với sự giúp đỡ của các hình thức sống. Nếu lượng carbon dioxide này được giải phóng khỏi các tảng đá của Trái Đất, cùng với lượng carbon dioxide nhỏ hơn ẩn dấu trong nước biển, không khí của chúng ta sẽ trở nên nặng nề và chịu áp lực lớn như Sao kim. Sao Kim, gần với Mặt Trời hơn Trái Đất và vậy nên nóng hơn và không có biển nơi mà carbon dioxide có thể hòa tan hoặc sự sống giúp chiếm lấy carbon.

Ngoài ra, Sao Kim có lẽ đã bị mất hầu hết nước mà chúng từng có. Bởi Sao Kim gần với Mặt Trời hơn Trái Đất, tầng không khí thấp hơn của nó thậm chí còn nóng hơn. Kết quả là ngày càng nhiều nước bị bốc hơi và đi đến tầng không khí cao hơn, nơi mà các tia cực tím phân ra thành hydro và oxy.

Các nghiên cức từ Trái Đất chỉ ra tằng các đám mây từ Sao Kim chủ yếu là hỗn hợp các giọt axit sulfuric và giọt nước. Thành phần đám mây là axit sulfuric nghe có vẻ lạ, nhưng ở tầng bình lưu của Trái Đất cũng có một lớp đáng kể các giọt axit sulfuric. Tuy nhiên, trong các lớp thấp hơn của tầng khí quyển Trái Đất có nước, dịch chuyển nhờ thời tiết, đã rửa sạch các hợp chất lưu huỳnh khỏi những lớp khí quyển, trong khi ở Sao Kim các hợp chất lưu huỳnh không những tồn tại trong các đám mây mà còn nằm ở các tầng không khí thấp.

 

[2tbp]

Mình đang học trên tienganh123 thấy mấy bài đọc khá hay mọi người cùng làm nhé ^^
1/
Mountaineers have noted that as they climb, for example, up to the 12,633-foot Humphreys Peak in the San Francisco Peaks in Arizona, plant life changes radically. Starting among the cacti of the Sonoran Desert, one climbs into a pine forest at 7,000 feet and a treeless alpine tundra at the summit. It may seem that plants at a given altitude are associated in what can be called “communities” – groupings of interacting species. The idea is that over time, plants that require particular climate and soil conditions come to live in the same places, and hence are frequently to be found together. Scientists who study the history of plant life are known as paleobotanists, or paleobots for short. They build up a picture of how groups of plants have responded to climate changes and how ecosystems develop. But are these associations, which are real in the present, permanent?


A great natural experiment took place on this planet between 25,000 and 10,000 years ago, when small changes in the earth’s orbit and axis of rotation caused great sheets of ice to spread from the poles. These glaciers covered much of North America and Europe to depths of up to two miles, and then, as the climate warmed, they retreated. During this retreat, they left behind newly uncovered land for living things to colonize, and as those living things moved in they laid down a record we can read now. As the ice retreated and plants started to grow near a lake, they would release pollen. Some would fall into the lake, sink to the bottom, and be incorporated into the sediment. By drilling into the lake bottom it is possible to read the record of successive plant life around the lake. The fossil record seems clear; there is little or no evidence that entire groups of plants moved north together. Things that lived together in the past don’t live together now, and things that live together now didn’t live together in the past. Each individual organism moved at its own pace. The fossil record seems to be telling us that we should be thinking about preserving species by giving them room to maneuver – to respond to environmental changes.

1. What is the passage mainly about?
(A) The effects of the ice age on plants
(B) Plant migration after the ice age
(C) The need to develop a new approach to environmental issues
(D) Communities of plants live at different altitudes

2. The word “radically” is closest in meaning to
(A) variably
(B) demonstrably
(C) quickly
(D) dramatically

3. The author mentions “cacti” and a ”treeless alpine tundra” to illustrate
(A) changes in climate
(B) the effects of the ice age
(C) communities of plants
(D) plant migration

4. The word “which” refers to
(A) the responses of plants to climate changes
(B) the current theories of ecosystems
(C) the developments of ecosystems
(D) plant life changes

5. The passage states that by drilling into the lake bottom it is possible to find successive fossils of
(A) sediment
(B) ice
(C) plant life
(D) pollen

6. Which of the following can be inferred from the passage
(A) that the migratory patterns of plants are dependent upon changes in climate
(B) that modern conservation methods should consider the migratory patterns of plants
(C) that current associations of plants are similar to those in the past
(D) that another ice age is likely to occur at some time


7. All of the following are true except
(A) The ice age occurred when small changes affected the movement of the earth
(B) Fossil records seem to indicate that plants will be preserved if they have sufficient room to move
(C) Fossil records clearly show that entire groups of plants are unlikely to have moved together
(D) In the ice age glaciers covered the world to depths of up to two miles


==========================================================================================

2/
Napoleon Bonaparte’s ambition to control all the area around the Mediterranean Sea led him and his French soldiers to Egypt. After losing a naval battle, they were forced to remain there for three years. In 1799, while constructing a fort, a soldier discovered a piece of stele (stone pillar bearing an inscription) known as the Rosetta stone. This famous stone, which would eventually lead to the deciphering of an ancient Egyptian hieroglyphics dating to 3100 B.C, was written in three languages: hieroglyphics (picture writing), demotic ( a shorthand version of hieroglyphics), and Greek. Scientists discovered that the characters, unlike those in English, could be written from right to left and in other directions as well.
Twenty-three years after discovery of the Rosetta stone, Jean Francois Champollion, a French philologist, fluent in several languages, was able to decipher the first world – Ptolemy – name of an Egyptian ruler. This name was written inside an oval called a “cartouche”. Further investigation revealed that cartouches contained names of important people of that period. Champollion painstakingly continued his search and was able to increase his growing list of known phonetic signs. He and an Englishman, Thomas Young, worked independently of each other to unravel the deeply hidden mysteries of this strange language. Young believed that sound values could be assigned to the symbols, while Champollion insisted that the pictures represented words.

1. How many years elapsed between the date of the oldest hieroglyphics deciphered by means of the Rosetta stone and the stone’s discovery?
a. 1,301
b. 1,799
c. 3,100
d. 4,899

2. Which of the following languages was not written on the Rosetta stone?
a. French
b. demotic
c. Greek
d. hieroglyphics

3. Which of the following statement is NOT true?
a. Cartouches contained names of prominent people of the period.
b. Champollion and Young worked together in an attempt to decipher the hieroglyphics.
c. One of Napoleon’s soldiers discovered the Rosetta stone.
d. Thomas young believed that sound values could be assigned to the symbols.

4. When was the first word from the Rosetta stone deciphered?
a. 3100 B.C
b. 1766
c. 1799
d. 1822

5. What was the first word from the Rosetta stone deciphered?
a. cartouche
b. Ptolemy
c. demotic
d. Champollion

6. Why were Napoleon’s soldiers in Egypt in 1799?
a. They were celebrating a naval victory.
b. They were looking for the Rosetta stone.
c. They were waiting to continue their campaign.
d. They were trying to decipher the hieroglyphics.

=============================================================================================

3/
Although management principles have been implemented since ancient times, most management scholars trace the beginning of modern management thought back to the early 1900s, beginning with the pioneering work of Frederick Taylor (1856-1915) Taylor was the first person to study work scientifically. He is most famous for introducing techniques of time and motion study, differential piece rate systems, and for systematically specializing the work of operating employees and managers. Along with other pioneers such as Frank and Lillian Gilbreth, Taylor set the stage, labeling his philosophy and methods “scientific management’. At that time, his philosophy, which was concerned with productivity, but which was often misinterpreted as promoting worker interests at the expense of management, was in marked contrast to the prevailing industrial norms of worker exploitation.


The time and motion study concepts were popularized by Frank and Lillian Gilbreth. The Gilbreths had 12 children. By analyzing his children’s dishwashing and bedmaking chores, this pioneer efficiency expert, Frank Gilbreth, hit on principles whereby workers could eliminate waste motion. He was memorialized by two of his children in their 1949 book called “Cheaper by the Dozen”.


The Gilbreth methods included using stop watches to time worker movements and special tools (cameras and special clocks) to monitor and study worker performance, and also involved identification of “therbligs” (Gilbreth spelled backwards) – basic motions used in production jobs. Many of these motions and accompanying times have been used to determine how long it should take a skilled worker to perform a given job. In this way an industrial engineer can get a handle on the approximate time it should take to produce a product or provide a service. However, use of work analysis in this way is unlikely to lead to useful results unless all five work dimensions are considered: physical, psychological, social, cultural, and power.

1. What is the passage primarily about?
(A) The limitations of pioneering studies in understanding human behavior
(B) How time and motion studies were first developed
(C) The first applications of a scientific approach to understanding human behavior
(D) The beginnings of modern management theory

2. The word “ which” refers to
(A) scientific management
(B) philosophy
(C) productivity
(D) time and motion study

3. It can be inferred from the first paragraph that
(A) workers welcomed the application of scientific management
(B) Talor’s philosophy is different from the industrial norms
(C) by the early 1900s science had reached a stage where it could be applied to the workplace
(D) workers were no longer exploited after the introduction of scientific management.

4. The word “prevailing” is closest in meaning to
(A) predominant
(B) broadly accepted
(C) prevalent
(D) common

5. According to the passage, Frank Gilbreth discovered how workers could eliminate waste motion by
(A) using special tools such as cameras and clocks
(B) using stop watches
(C) applying scientific management principles
(D) watching his children do their chores


6. According to the passage, the time it takes a skilled worker to perform the motion of a given job can be measured by using:
(A) stop watches
(B) all five work dimensions
(C) special tools
(D) therbligs


7. All of the following are true except
(A) scientific management was concerned with productivity.
(B) the beginnings of modern management thought commenced in the 19th century.
(C) Frank Gilbreth’s fame was enhanced by two of his children writing a book.
(D) analyzing work to increase productivity is not likely to be useful unless all of the dimensions are considered.

 

[trinhbanhbao@gmail.com]

cho minh hoi bai doc 1 ve sao kim cau 47 tinh sao lai ra 1000 vay

 

[vuhoangnam2001]

Bên cạnh bài tập điền từ là bài tập đọc hiểu. Bài tập dạng này nói khó cũng không hẳn mà nói dễ thì càng sai. Những câu hỏi về chi tiết, có thể dễ dàng nhìn thấy trong bài thì không nói làm gì, nhưng những câu về nghĩa của từ/cụm từ, đại ý đoạn văn lại luôn gây nhầm lẫn cho học sinh.

Đó là lý do vì sao chúng ta phải dành nhiều thời gian hơn vào loại bài khó nhằn này, luyện tập nhiều hơn (cho dù vẫn biết nó chẳng ngon lành gì). Nhưng trái ngọt chính là điểm mà chúng ta có được. Có một số phương pháp làm bài đã được đưa ra tại đây, nó sẽ giúp các em làm bài đọc hiểu dễ dàng hơn

Chinh phục luôn là niềm đam mê bất tận của người trẻ :khi (17):

Hãy bắt đầu bằng một bài "nhẹ nhàng, tình cảm"

Đọc kỹ đoạn văn sau và chọn phương án đúng (ứng với A hoặc B, C, D) cho mỗi câu từ 1 đến 5.

For many people the language of the Internet is English. “World, Wide, Web: Three English Words” was the name of an article by Michael Specter in the New York Times a few years ago. The article went on to say: “If you want to take full advantage of the Internet, there is only one real way to do it: learn English.”

In general, it is not difficult to learn to use Internet services. But although Internet services are rather easy to use, you will have considerable difficulties if you are not familiar with English. In fact, a good knowledge of English is one of the most important aspects that help you use the Internet.

Learning to use a new Internet service may take a few hours, a few days or some weeks, but it takes years to learn a language so that you can use it fluently and confidently. Of course, when you know some English, you can learn more just by using it on the Internet. But at least your English should be good enough to understand commonly used words and to know what to do on the Internet.

Câu 1: It ______________ to learn to use Internet services.
A. is easy
B. is difficult
C. takes a few minutes
D. takes a very long time
Câu 2: According to the article by Michael Specter, you should _________ to take full advantage
of the Internet.
A. learn to type fast
B. learn to use the Internet services
C. learn English
D. learn the names of some websites
Câu 3: Learning to use a language fluently and confidently may take ________.
A. a few days
B. a few hours
C. a few weeks
D. a few years
Câu 4: If you do not know English very well, you will______ when using the Internet.
A. be laughed at
B. have many difficulties
C. feel more comfortable
D. spend a few days
Câu 5: Which of the following could be the best title for the passage?
A. “English and the Internet”
B. “Ways to take full advantage of the Internet”
C. “Practising your English on the Internet”
D. “How to use Internet services”

(Đáp án sẽ được đưa ra khi có từ 3 bài trả lời trở lên hoặc 3 ngày sau khi đề bài được đăng, tùy theo điều kiện nào đến trước. Hocmai.tienganh sẽ cảm ơn bài viết đúng 100%)

Câu 1 đáp án là A
Câu 2 đáp án là C
Câu 3 đáp án là D
Câu 4 đáp án là B
Câu 5 đáp án là A

 

[Nguyễn Mạnh Trung]

thêm vài câu này nũa nha mọi người:
The world's oceans are so vast that they can cope with the present levels of pollution. However, little is known about the long-term effects of such slow poisoning. The most serious problem of modern time is that man is destroying the earth's natural resources and transforming huge areas into waste land. As a result, it is becoming extremely difficult to grow enough to feed the world's rapidly increasing population. A way of protecting all wild life on the earth must also be found as many species are in danger of disappearing completely from the face of the earth. The smoke in the atmosphere, for example, is increasing so much that the amount of sunlight has been reduced in many cities. Man's whole environment is being changed in a serious way.

1) What is the process of making something dirty?
2) Find a word or phrase from the passage with the same meaning as the air, water and land in which we live?
3) What is the air surrounding the earth called?
4) What could be best replaced wealth, goods or products people can use?
5) What is a difficulty which needs attention and thought?

 

[Nguyễn Mạnh Trung]

bên vn.doc có máy cau này khá hay mọi người tham khảo thêm nha
Paper is named for papyrus, a reed like plant used by ancient Egyptians as writing material more than 5000 years ago. The Chinese invented the paper that we use 2000 years ago.

A piece of paper is really made up of tiny fibers, unlike a piece of material. The fibers used in paper, however, are plant fibers, and there are millions of them in one sheet. In addition to the plant fiber, dyes and additives such as resin may be used. Dyes can make the paper different colors; resin may add weight and texture.

Where do these fibers come from ? The majority of paper is made from the plant fiber that comes from trees. Millions are cut down, but new trees are planted in their place. Paper may be also made from things like old rags or pieces of cloth. Wastepaper, paper that has been made and used, can be turned into recycled paper. This recycling process saves forest, energy and reduces air and water pollution.

1. According to the passage, the paper that we use was first invented by

A. the Chinese B. the Egyptians C. ancient cultures D. foresters

2. What is the main ingredient in most paper ?

A. resin B. cardboard C. plant fiber D. papyrus

3. According to the passage, the primary source of the plant fiber used in paper is

A. rags B. trees C. fabric D. wastepaper

4. According to the passage, recycling paper is

A. bad for the environment C. good for the environment

B. wasteful D. economical

5. According to the passage, recycling paper does all of the following EXCEPT

A. reduce the need for ink C. save energy

B. save forests D. reduce air pollution

 

[Shibuki Ran]

1.A
2.C
3.B
4.C
5.A
Mình thử làm nha sai thì thôi

 

[LươngSơnBạc.]

Bài của thien0526 là đáp án của bài tập Re02 này.

Hocmai.tienganh rất xin lỗi vì sơ suất không bôi đen từ "they" trong đoạn cuối (thế mà vẫn có đáp án chính xác 100% nhể? Kỳ diệu thế ) ). Câu đó phải là: They may harness the tides as they flow in and out of bays. Hocmai.tienganh sẽ rút kinh nghiệm lần sau.
Chúc mừng thien0526 và nhiệt liệt hoan nghênh tinh thần của các em còn lại! :khi (167):

Chúc các em có một cuối tuần vui vẻ!
___________________________________________________________

Lược dịch:

Ngày nay chúng ta được cấp điện nên có lẽ chúng ta không nhận ra khám phá này hữu ích như thế nào. Hơi nước là phát minh đầu tiên dùng thay thế cho năng lượng gió. Nó được sử dụng để điều khiển động cơ và được dẫn qua các đường ống và lò sưởi để sưởi ấm các căn phòng. Xăng trộn với không khí là phát minh tiếp theo để cung cấp năng lượng. Hỗn hợp này nổ trong một xi lanh và làm động cơ hoạt động. Ngoài các cách sử dụng đơn giản và trực tiếp này, các dạng năng lượng kể trên không có nhiều khả năng thích ứng.
Mặt khác, chúng ta lại sử dụng điện bằng hàng ngàn cách khác nhau. Từ việc dùng điện áp mạnh để điều khiển những đoàn tàu điện hiện đại đến dòng điện nhỏ chỉ để làm một con tính đơn gian, và từ dòng điện từ trường lớn trong các nhà máy thép có thể nâng đến 10 tấn tới dòng từ trường trong một chiếc chuông cửa, tất cả đều là năng lượng điện. Một dòng điện có thể dễ dàng làm nóng chảy một khối lượng kim loại lớn trong lò luyện hay chỉ đơn giản đun sôi lượng nước cho một tách cafe.
Nếu không kể đến điện nguyên tử - cái mà vẫn chưa được khai thác triệt để, điện là nguồn năng lượng lớn nhất trên thế giới. Nó linh hoạt, và có khả năng đáp ứng cho bất cứ nhiện vụ nào. Nó truyền đi dễ dàng và với tốc độ đáng kinh ngạc trong dây kim loại hoặc dây dẫn, vì vậy người ta có thể truyền tải điện ngay tức khắc trên phạm vi lớn.
Để tạo ra điện, những tua-bin lớn hoặc máy phát điện phải được quay. Ở Úc, người ta sử dụng than hoặc nước để vận hành loại máy móc này. Khi các con đập được xây dựng, nước đổ xuống làm quay các tua-bin và không làm ô nhiễm môi trường như khói than.
Năng lượng hạt nhân được dùng ở một vài quốc giá nhưng vẫn còn tồn tại nỗi lo sợ về rủi ro. Một bi kịch đã từng xảy ra ở Chernobyl, Ukraine, tại một nhà máy điện hạt nhân được dùng để sản xuất điện. Lò phản ứng bị rò rỉ và gây ra nhiều trường hợp tử vong do nhiễm phóng xạ.
Ngày nay, các nhà khoa học đang nghiên cứu các cách tạo ra điện mới mà không tác động xấu đến môi trường. Họ sử dụng thủy triều khi chúng chảy vào và rút đi ở các con vịnh. Quan trọng hơn cả, các nhà khoa học hy vọng việc sử dụng ánh sáng mặt trời sẽ hiệu quả hơn. Chúng tôi sử dụng các lò sưởi năng lượng mặt trời cho các bể bơi nhưng vẫn chưa có cải thiện nào trong khả năng của các tế bào quang học để tạo ra nhiều hơn nhu cầu hiện tại. Khi điều đó xảy ra, ô tô điện sẽ khả thi và thế thời sẽ có thể loại bỏ lượng khí độc hại từ khói xe tải, ô tô đang tiêu tốn hết những nguồn nhiêu liệu hóa thạch.

mk nghĩ là dịch rất tốt nhưng nên cho đáp án sau đó chỉ ra là nó thuộc câu nào trong bài thi tốt hơn....hoặc hướng dẫn các bạn làm bài theo phương pháp skin/skan....hiểu những gì trong câu hỏi luôn quan trọng hơn hiệu toàn bộ nghĩa mà ^^