Because of different tree species adapting to different climates and soil types have evolved over millennium, many kinds of forests occupy the earth today. The primitive forests of several hundred million years ago consisted of less kinds of trees. In fact, the earliest ‘trees’, which grew nearly 500 million years ago, were like giant club mosses. They lack true roots and consisted of a confused mass specialized branches that climbed at rocky ground. Fifty million years later came the dense forests of tree ferns that prevailed tropical climates of that era. He forerunners of modern conifers-trees that bear cones – were on the scene 300 million years ago, when plant life abundant colonized marshy land, building the tremendous coal and oil reserves so important today. By the time the dinosaurs roamed the earth some 180 million years before, seed bearing trees that shed their leaves in winter evolved; from these have sprung our present deciduous forests.
Because of different tree species adapting to different climates and soil types have evolved over millennium, many kinds of forests occupy the earth today. The primitive forests of several hundred million years ago consisted of less kinds of trees. In fact, the earliest ‘trees’, which grew nearly 500 million years ago, were like giant club mosses. They lack true roots and consisted of a confused mass specialized branches that climbed at rocky ground. Fifty million years later came the dense forests of tree ferns that prevailed tropical climates of that era. He forerunners of modern conifers-trees that bear cones – were on the scene 300 million years ago, when plant life abundant colonized marshy land, building the tremendous coal and oil reserves so important today. By the time the dinosaurs roamed the earth some 180 million years before, seed bearing trees that shed their leaves in winter evolved; from these have sprung our present deciduous forests.
Becauseof (bỏ of đi vì đằng sau là mệnh đề chứ không phải cụm danh từ) different tree species adapting to different climates and soil types ( chủ ngữ) have evolved over the (thêm vào, nó tương tự như the summer ) millennium (vị ngữ), many kinds of forests occupy the earth today.
The primitive forests of several hundred million years ago consisted of less (sửa = fewer vì kinds of trees là danh từ đếm được số nhiều:) kinds of trees.
In fact, the earliest ‘trees’, which grew nearly 500 million years ago, were like giant club mosses. They lack ( thêm ed vì đang nói về quá khứ) true roots and consisted of a confused mass specialized branches that climbed at the ( thêm) rocky ground.
Fifty million years later came the dense forests of tree ferns that prevailed tropical climates of that era.
He(the?) forerunners of modern conifers-trees that bear cones – were on the scene 300 million years ago, when plant life abundant colonized marshy land, building the tremendous coal and oil reserves so important today.
By the time the dinosaurs roamed the earth some 180 million years before, seed bearing(chỗ này cần dấu - ) trees that shed their leaves in winter evolved; from these have sprung our present deciduous forests.
Because of=> bỏ of vì sau đây là một cụm S-V different tree species adapting to different climates and soil types have evolved over millennium, many kinds of forests occupy the earth today. The primitive forests of several hundred million years ago consisted of less=>fewer vì đếm được kinds of trees. In fact, the earliest ‘trees’, which grew nearly 500 million years ago, were like giant club mosses. They lack=>lacked vì sau and cũng là một động từ thêm -ed true roots and consisted of a confused mass=>mass of vì mass lúc này là danh từ đi với of specialized branches that climbed at=>climb over dựa theo nghĩa thì climb over=grow rocky ground. Fifty million years later came the dense forests of tree ferns that prevailed=>prevailed in the tropical climates of that era. He=>The forerunners of modern conifers-trees that bear cones – were on the scene 300 million years ago, when plant life abundant=>.abundantly vì sau nó là động từ cần trạng từ bổ nghĩa colonized marshy land, building the tremendous coal and oil reserves so important today. By the time the dinosaurs roamed the earth some 180 million years before=>ago, seed bearing trees that shed their leaves in winter evolved; from these have sprung our present deciduous forests.
[TẶNG BẠN] TRỌN BỘ Bí kíp học tốt 08 môn
