Life on land probably began about 430 million years ago, though it has stayed in the water for perhaps as much as 3,000 million years. When we think of the first thing on land, we probably think of strange animals coming out of the oceans, but in fact no animals could have been living if plants had not been on land first. Plants had to be on land before animals arrived. They supplied the first land animals with the surrounding and food necessity, since then, the plants, are the only form of life that is able to get and store energy.
　　The first plants to stay out of the water were probably certain kinds of algae（海藻）which were followed by other plants that grew close to the ground and needed water in which to reproduce. Once the move to land had been made, however, evolution（进化）happened quickly. By the end of 100 million years, plants had developed their roots（根), and some had got tree -like forms since height was very important in gaining sunlight. About 300 million years ago, much of the world was covered with forests of huge trees. In most ways they were like modern trees. They had roots, leaves, wood, but mostly they had not developed seeds.
59．The main idea of the first paragraph is ________.
　　A. life on land probably began 430 years ago
　　B. the first animal on land came from oceans
　　C. there wouldn't have been animals without plants
　　D. plants are the only form of life that is able to get and store energy
60．Which of the following statements is true according to the passage?
　　A. Algae probably has stayed for more than 430 million years.
　　B. It is impossible that algae might be the earliest plant on land.
　　C. Plants get food from animals in the oceans.
　　D. Evolution began after animals appeared on land.
61．Plants with roots appeared about ________ million years ago.
　　A. 430　　　　　B. 300　　　　　 C. 330　　　　　 D. 100
62．According to the passage, ________ appeared earlier than ________.
　　A. apples; oranges　　　　　　　　 B. oranges; apples
　　C. oranges; roses　　　　　　　　　D. algae; wheat

Life on land probably began about 430 million years ago, though it has existed in the water for perhaps as much as 3,000 million years. When we think of the first thing on land, we probably think of strange animals coming out of the oceans, but in fact no animals could have been living if plants had not been on land first. Plants had to be on land before animals arrived. They supplied the first land animals with the surrounding and food necessity, since they, the plants, are the only form of life that is able to get and store energy.

　　The first plants to exist out of the water were probably certain kinds of algae（海藻）which were followed by other plants that grew close to the ground and needed water in which to reproduce. Once the move to land had been made, however, evolution（进化）took place quickly. By the end of 100 million years, plants had developed their roots（根）,and some had got tree -like forms since height was very important in gaining sunlight. About 300 million years ago, much of the world was covered with forests of huge trees. In most ways they were like modern trees. They had roots, leaves, wood, but mostly they had not developed seeds.

　The main idea of the first paragraph is ________.

　　A. life on land probably began 430 years ago

　　B. the first animal on land came from oceans

　　C. there wouldn't be animals without plants

　　D. plants are the only form of life that is able to get and store energy

　Which of the following statements is true according to the passage?

　　A. Algae has existed for more than 430 million years.

　　B. It is impossible that algae might be the earliest plant on land.

　　C. Plants get food from animals in the oceans.

　　D. Evolution began after animals appeared on land.

　Plants with roots appeared about ________ million years ago.

　　A. 430　　　　　B. 300　　　　　 C. 330　　　　　 D. 100

　According to the passage, ________ appeared earlier than ________.

　　A. apples; oranges　　　　　　　　 B. oranges; apples

　　C. oranges; roses　　　　　　　　　D. algae; wheat

Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.

A. roots      B. but     C. covered     D. reproduce   E. energy

F. probably  G. gaining  H. surrounding  I. supplied     J. life

Life on land probably began about 430 million years ago, though it has existed in the water for perhaps as much as 3,000 million years. When we think of the first     1    on land, we     2   think of strange animals coming out of the oceans, but, in fact, no animals could have been living if plants had not been on land first. Plants had to be on land before animals arrived. They    3   the first land animals with the    4   and food necessary, since they ---the plants are the only form of life that is able to get and store    5    .

The first plants to exist out of the water were probably certain kinds of algae （ 藻类 ）which were followed by other plants that grew close to the ground and needed water in which to    6  . Once the move to land has been made, however, evolution took place quickly. By the end of 100 million years, plants had developed their    7  , and some have got tree-like forms since height was very important in    8   sunlight. About 300 million years ago, much of the world was     9   with forests of huge trees. In most ways they were like modern trees. They had roots, leaves, wood, but mostly they had not developed seeds.

. If plants from one habit were moved to the other type of habit, they changed their appearance and _____ the new environment.

A. adapted                B adapted to               C. suited to                D. fit

　Life on land probably began about 430 million years ago, though it has existed in the water for perhaps as much as 3,000 million years. When we think of the first thing on land, we probably think of strange animals coming out of the oceans, but in fact no animals could have been living if plants had not been on land first. Plants had to be on land before animals arrived. They supplied the first land animals with the surrounding and food necessity, since they, the plants, are the only form of life that is able to get and store energy.

　　The first plants to exist out of the water were probably certain kinds of algae（海藻）which were followed by other plants that grew close to the ground and needed water in which to reproduce. Once the move to land had been made, however, evolution（进化）took place quickly. By the end of 100 million years, plants had developed their roots（根）,and some had got tree-like forms since height was very important in gaining sunlight. About 300 million years ago, much of the world was covered with forests of huge trees. In most ways they were like modern trees. They had roots, leaves, wood, but mostly they had not developed seeds.

The main idea of the first paragraph is ________.

　　A. life on land probably began 430 years ago

　　B. the first animal on land came from oceans

　　C. there wouldn't be animals without plants

　　D. plants are the only form of life that is able to get and store energy

Which of the following statements is true according to the passage?

　　A. Algae has existed for more than 430 million years.

　　B. It is impossible that algae might be the earliest plant on land.

　　C. Plants get food from animals in the oceans.

　　D. Evolution began after animals appeared on land.

Plants with roots appeared about ________ million years ago.

　　A. 430　　　　　B. 300　　　　　 C. 330　　　　　 D. 100

According to the passage, ________ appeared earlier than ________.

　　A. apples; oranges　　　　　　　　 B. oranges; apples

C. oranges; roses　　　　　　　　　D. algae; wheat