Scientists are trying to make the desert into good land again.They want to bring 1 to the desert.So——青夏教育精英家教网—

Scientists are trying to make the desert into good land again.They want to bring 1 to the desert.So people can live and 2 food.They are working a lot on the desert.But more and more ground 3 desert all the time.Scientists may not be able to change the desert 4 time. Why is more and more land becoming 5 ? Scientists think that 6 make desert.People are doing 7 things to the earth. Some places on the earth don’t have many rivers. 8 they still don’t become desert.This is because some green plants are growing there.Small green plants and grasses are very important to bad places. 9 don’t let the hot sun make the earth even drier.Plants don’t let the wind 10 the dirt away.When a little bit of rain fall.the plants hold the water.Without plants.the land can become a desert much more easily. 1.A.air B.water C.food D.sun 2.A.grow B.plant C.eat D.cook 3.A.becomes B.became C.becoming D.is becoming 4.A.on B.in C.for D.at 5.A.rivers B.mountains C.desert D.hole 6.A.people B.animals C.plants D.birds 7.A.good B.bad C.nice D.a lot of 8.A.And B.So C.But D.Because 9.A.Plants B.Animals C.People D.Birds 10.A.to blow B.blow C.blowing D.blows 答案: 1.B 从前一句话“科学家想把沙漠变成良田看.air和sun不符题意.所以选B项. 2.A 从长远的角度看.不能是“吃食物和做食物 .排除C.D两项.而种吃的应该是个完整的全过程.所以应该选grow. 3.D 从后面的all the time 来看.应该是一直在持续没有停止的动作.故用进行时. 4.B on time“准时 .in time“及时 .C.D两项无此搭配.改变沙漠.没有固定日期.及时为好. 5.C 通篇文章都是讲的有关沙漠的话题. 6.A 因为人的社会活动改变了自然.使陆地变成了沙漠. 7.B 本处主要强调人们做的事情的性质对土地的影响. 8.C 句意为“地球上的一些地方没有很多河流.但是它们仍然没有变成沙漠 .前后两句是转折关系. 9.A 句意为“--不让太阳把地球晒干 .只有植物才能起到这个作用. 10.B 关键句型是“let sb.do sth. .含义是“让某人做某事 . 【查看更多】

Scientists are trying to make the deserts into good land again. they want to bring water to the deserts, so people can live and grow food. They are learning a lot about the deserts. But more and more of the earth is becoming desert all the time. Scientists may not be able to change the desert in time.

Why is more and more land becoming desert? Scientists think That people make deserts. People are doing bad things to the earth.

Some places on the earth don't get very much rain. But they Still don't become deserts. This is because some green plants are growing there. Small green plants and grass are very important to dry places. Plants don’t let the hot sun make the earth even drier. Plants don't let the wind blow the dirt(泥土)away. When a little bit of rain falls，the plants hold the water. Without plants, the land can become a desert much more easily.

根据短文内容判断正(T)误(F)

1. Scientists are trying to change the deserts into good land.　　

2. Land is becoming desert little by little.

3. Land can't become desert faster than scientists can change it back into good land.

4. Small green plants need a lot of water.　　　　　　　　　　　　

5. All places without much rain will become deserts.　　　　　　

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完形填空
Scientists are trying to make the desert into good land again.They want to bring 1to the desert. So people can live and 2food.They are working a lot on the desert.But more and more ground 3 desert all the time.Scientists may not be able to change the desert 4 time. Why is more and more land becoming 5? Scientists think that 6 make desert.People are doing 7 things to the earth. Some places on the earth don't have many rivers.8they still don't become desert.This is because some green plants are growing there.Small green plants and grasses are very important to bad places.9 don't let the hot sun make the earth even drier.Plants don't let the wind 10 the dirt away.When a little bit of rain fall,the plants hold the water.Without plants,the land can become a desert much more easily.
( )1.A.air ( )2.A.grow ( )3.A.becomes ( )4.A.on ( )5.A.rivers ( )6.A.people ( )7.A.good ( )8.A.And ( )9.A.Plants ( )10.A.to blow	B.water B.plant B.became B.in B.mountains B.animals B.bad B.So B.Animals B.blow	C.food C.eat C.becoming C.for C.desert C.plants C.nice C.But C.People C.blowing	D.sun D.cook D.is becoming D.at D.hole D.birds D.a lot of D.Because D.Birds D.blows

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完形填空。
     Scientists are trying to make the desert into good land again. They want to bring    1     to the desert,
so people can live and grow food.  They are    2    a lot about the desert. But    3    of the earth is
becoming desert all the time, scientists may not be able to    4   . the deserts. Scientists think that
people make deserts.  People are doing    5    things to the earth.
     Some places on the earth don't get    6   .  But they still don't become deserts. This is _7  _ some
green plants are growing there.  Small green plants and grass are very    8    to dry places. Plants don't
let the wind blow the earth away. When   9  _ bit of rain falls,  the plants hold the water.   10   plants,
the land can become a desert much more easily.

(     )1. A. food
(     )2. A. learning
(     )3. A. fewer and fewer
(     )4. A. use
(     )5. A. good
(     )6. A. little rain
(     )7. A. because
(     )8. A. careful
(     )9. A. a little
(     )10. A. With

B. water
B. writing
B. less and less
B. change
B. better
B. much warm
B. for
B. helpful
B. a few
B. Without

C. money
C. buying
C. more and more
C. lose
C. bad
C. much rain
C. as
C. forgetful
C. a lot
C. For

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阅读理解。

      Scientists are trying to make the deserts into good land again. They want to bring water to the deserts, so
people can live and grow food. They are learning a lot about the deserts. But more and more of the earth is
becoming desert all the time. Scientists may not be able to change the desert in time.
      Why is more and more land becoming desert? Scientists think that people make deserts. People are doing
bad things to the earth.
      Some places on the earth don't get much rain. But they still don't become deserts. This is because some
green plants are growing there. Small green plants and grass are very important to dry places. Plants don't let the
hot sun make the earth even drier. Plants don't let the wind blow the dirt away. When a little bit of rain falls, the
plants hold the water. Without plants, the land can become a desert much more easily.

1. Deserts _________.

[ ]

A. get very little rain
B. never have any plants or animals in them
C. can all be turned into good land in the future
D. both A and C

2. Small green plants are very important to day places because ________.

[ ]

A. they don't let the sun make the earth even drier
B. they don't let the wind blow the earth away
C. they hold the water
D. A, B and C

3. Land is becoming desert little by little because ________.

[ ]

A. plants can't grow there
B. there's not enough rain
C. people are doing bad things to the earth.
D. scientists know little about desert

4. Which is the main idea of the first paragraph?

[ ]

A. Scientists know how to change land into good land.
B. Land is becoming desert faster than scientists can change it back into good land.
C. If scientists can bring water to the desert, people can live there.
D. More and more places are becoming deserts all the time.

5. After reading this, we learn that ________.

[ ]

A. plant can keep dry land from becoming desert.
B. it is good to get rid of (清除) the grass in the desert
C. all places without much rain will become deserts
D. it is better to grow crops on dry land than to grow grass

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阅读理解。

    Scientists are trying to make the deserts into good land again. They want to bring water to the deserts, so
people can live and grow food. They are learning a lot about the deserts. But more and more of the earth is
becoming desert all the time. Scientists may not be able to change the desert in time.
    Why is more and more land becoming desert? Scientists think that people make deserts. People are doing
bad things to the earth.
    Some places on the earth don't get very much rain. But they still don't become deserts. This is because
some green plants are growing there. Small green plants and grass are very important to dry places. Plants
don't let the hot sun make the earth even drier. Plants don't let the wind blow the dirt away. When a little bit
of rain falls. The plants told the water. Without plants, the land can become a desert much more easily.

1. Deserts ______.

[ ]

A. get very little rain
B. never have any plants or animals in them
C. can all be turned into good land before long
D. both A and B

2. Small green plants are very important to dry places because .

[ ]

A. they don't let the sun make the earth even drier
B. they don't let the wind blow the earth away
C. they hold water
D. all of the above

3. Land is becoming desert little by little because .

[ ]

A. plants can't grow there
B. there is not enough rain
C. people haven't done what scientists wish them to do
D. scientists know little about the deserts

4. Which is the main idea of the first paragraph?

[ ]

A. Scientists know how to change desert into good land.
B. Land is becoming desert faster than scientists can change it back into good land.
C. If scientists can bring water to desert, people can live and grow food there.
D. More and more places are becoming deserts all the time.

5. After reading this, we learn that .

[ ]

A. plants can keep dry land from becoming desert
B. it is good to get rid of the grass in the deserts
C. all places without much rain will become deserts
D. it is better to grow crops on dry land than to grow grass

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