Question

A desert is a large land of sand. There is very little rain and not many plants. The size and the place of the world’s deserts are always changing. In recent a hundred years,deserts have become more and more. That’s mainly because of men. In the nineteenth century,some people brought a kind of little animal called rabbit to Australia from England. Today there are millions of them. They eat every plant they see. So the great desert in the center of Australia is becoming bigger.

There are places in North Africa where great cities once stood. There were gardens and trees and grass. But now these places are deserts. Scientists studied the land to find out what happened. Many of them thought the land died when the trees had been cut down.

Trees help other plants grow. And they keep the earth from blowing away. In forests,leaves on the ground keep rain water from running off.

Men  can  make  deserts,but they can  also stop them from  getting  bigger.  For  example,in China,the  Great Green Wall has been built  and it has already saved  a  lot  of land.  But  more    “Great Green Wall” are still needed all over the world. Can we stop deserts from getting bigger and save the land? Yes,we can. And we must.

1.选择最佳答案。

(   ) 1) What is a desert in the text?

A. Large land of earth.  B. A large land of grass.

C. A large land of sand.  D. A large good land.

(   ) 2) Which desert is becoming bigger  in the text?

A. The great desert in the     northwest of China.

B. The great desert in the     middle of America.

C. The great desert in the middle of Australia.

D. The great desert in South Africa.

(   ) 3) Who studied the places which are deserts  now?

A. Scientists.  B. Teachers.  C. Workers.  D. Students.

(   ) 4) From the text we know        .

A. trees help other plants grow and     keep  the  earth from blowing away

B. deserts are good places for trees to grow

C. rabbits can make deserts become good land

D. there is plenty of rain and many plants in the deserts 

(   ) 5) What can people do with deserts?

A. They can do nothing.

B. They can build Great Green Walls to change the deserts.

C. They can plant many flowers there.

D. They can go on cutting the trees there.

2.根据首字母提示补全单词。

1) Men d      the balance of the nature.

2) The areas of desert are i      year by year.

3) The center of Australia is d      .

4) Scientists tried to s       the reason of it.

5) We must take m      to stop desert from getting bigger.

Answer 1

  1. 1.  C 2.C 3. A  4. A 5. B

2. 1.  destroyed 2. increasing  3. desert  4. search 5. measures