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Earthquakes are destructive events in nature. The damage depends on the size or magnitude of the quake. There have never been so many people living in cities in quake zones, and so the worse the damage can be from a big quake, bringing fires, tsunamis, and the loss of life, property, and maybe an entire city. We understand how earthquakes happen but not exactly where or when they will occur. Until recently, quakes seemed to occur at random. In Japan, government research is now showing that quakes can be predicted. At the Earthquake Research Institute, University of Tokyo, Koshun Yamaoka says earthquakes do follow a pattern—pressure builds in a zone and must be released. But a colleague, Naoyuki Kato, adds that laboratory experiments indicate that a fault slips a little before it breaks. If this is true, predictions can be made based on the detection of slips. Research in the U.S. may support Kato’s theory. In Parkfield, California earthquakes occur about every 22 years on the San Andreas fault. In the 1980s, scientists drilled into the fault and set up equipment to record activity to look for warning signs. When an earthquake hit again, it was years off schedule. At first the event seemed random but scientists drilled deeper. By 2005 they reached the bottom of the fault, two miles down, and found something. Data from two quakes reported in 2008 show there were two “slips’—places where the plates widened—before the fault line broke and the quakes occurred.
We are learning more about these destructive events every day. In the future we may be able to track earthquakes and design an early-warning system. So if the next great earthquake does happen in Tokai, about 100 miles southwest of Tokyo, as some scientists think, the citizens of Tokai may have advance warning.
Question 34: What is the main idea of the passage?
A. We can predict earthquakes using pre-slip theory.
B. There are now many theories about earthquakes.
C. Research is showing that we may be able to predict earthquakes.
D. Earthquakes are the most destructive natural disaster on earth.
Question 35: The underlined phrase “the worse the damage” in the passage means ___________.
A. The result of a great earthquake is a tsunami or fire that causes great damage.
B. Greater damage will occur from earthquakes in highly populated cities in danger zones.
C. Tsunamis and fire are caused by big earthquakes that we have not been able to predict.
D. Cities and other populous areas may suffer from worse earthquakes than other places.
Question 36: Which of the following statements is NOT true?
A. The San Andreas fault is two miles deep.
B. Scientists in the U.S. found slips in the fault in the 1980’s.
C. Earthquakes occur about every 22 years along the San Andreas Fault.
D. The slip at a fault can predict when the fault will break.
Question 37: Evidence for the pre-slip theory has been found by scientists in __________.
A. Japan and the United States
B. Tokai and San Andreas
C. Parkfield and Kato
D. California and Tokyo
Giúp em với ạ, nếu giải thích được thêm thì tốt quá ạ @Trần Ngọc ftu
We are learning more about these destructive events every day. In the future we may be able to track earthquakes and design an early-warning system. So if the next great earthquake does happen in Tokai, about 100 miles southwest of Tokyo, as some scientists think, the citizens of Tokai may have advance warning.
Question 34: What is the main idea of the passage?
A. We can predict earthquakes using pre-slip theory.
B. There are now many theories about earthquakes.
C. Research is showing that we may be able to predict earthquakes.
D. Earthquakes are the most destructive natural disaster on earth.
Question 35: The underlined phrase “the worse the damage” in the passage means ___________.
A. The result of a great earthquake is a tsunami or fire that causes great damage.
B. Greater damage will occur from earthquakes in highly populated cities in danger zones.
C. Tsunamis and fire are caused by big earthquakes that we have not been able to predict.
D. Cities and other populous areas may suffer from worse earthquakes than other places.
Question 36: Which of the following statements is NOT true?
A. The San Andreas fault is two miles deep.
B. Scientists in the U.S. found slips in the fault in the 1980’s.
C. Earthquakes occur about every 22 years along the San Andreas Fault.
D. The slip at a fault can predict when the fault will break.
Question 37: Evidence for the pre-slip theory has been found by scientists in __________.
A. Japan and the United States
B. Tokai and San Andreas
C. Parkfield and Kato
D. California and Tokyo
Giúp em với ạ, nếu giải thích được thêm thì tốt quá ạ @Trần Ngọc ftu