c plants grow in fields by farmers 7 h very big 查看更多

 

题目列表(包括答案和解析)

Do you know why different animals or insects have their special colors? Colors are used mainly to protect themselves.
Why can’t some birds easily catch locusts(蝗虫)? It is because locusts change their colors together with the change of the colors of crops. When crops are green, locusts look green. But as autumn comes, locusts change to the same brown color as crops have. Some other insects with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives in the day and appear only at night.
If you study the animal life, you’ll find the main use of coloring is to protect themselves. Bears, lions and other animals can’t be easily seen by hunters. This is because they have the colors much like the trees.
Have you ever noticed an even more strange thing? A kind of fish in the sea can send out black liquid when it faces danger. While the liquid spreads over, its enemies can’t find it. And it quickly swims away. So it has lived up to now though it is not strong at all.
【小题1】 From the article we learn that locusts          .
A.are dangerous to their enemiesB.are easily found by birds
C.change their colors to protect themselvesD.are small animals
【小题2】How can insects with different colors from plants keep out of danger?
A.They have to move quietly.
B.They hide themselves in the day and appear at night.
C.They have the colors much like their enemies.
D.They run away quickly.
【小题3】 Bears and lions can keep safe because          .
A.they live in forestsB.they like brown and grey colors
C.they move quietly D.they have the colors similar to the trees
【小题4】What does the word “liquid” mean in the last paragraph?
A.气体B.固体 C.液体 D.水蒸气
【小题5】 Which is the best title for this passage?
A.The Main Use of Colors for Animals and Insects
B.Colors of Different Animals and Insects
C.The Change of Colors for Animals and Insects
D.The Change of Different Animals and Plants

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阅读理解

Scientists are trying to make the desert into good land againThey want to bring water to the desert,so people can live and grow foodThey are learning a lot about the desertBut more and more places of the Earth is becoming desert all the timeScientists may not change the desert in time

Why is more and more land becoming desert?Scientists think that people make desertPeople are doing bad things to the earth

Some places on the earth don't get much rainBut they still don't become desertThis is because some green plants are growing thereSmall green plants and grass are very important to dry placesPlants don't let hot sun make the earth even drierPlants don't let the wind blow the dirt awayWhen a little rain falls,the plants hold the water.Without plants,the land can become desert much more easily

(1)

Desert ________

[  ]

A.

gets not much water

B.

never has any plants or animals in it

C.

both A and B

D.

can all be turned into good land before long

(2)

Small green plants and grass are very important to dry places because ________

[  ]

A.

they don't let the sun make the earth much drier

B.

they don't let the wind blow the earth away

C.

they hold the water

D.

all the above

(3)

Land is becoming desert little by little because ________

[  ]

A.

plants can't grow there

B.

there is not enough water

C.

people are doing bad things to the earth

D.

scientists know little about desert

(4)

After reading this passage,we learn that ________

[  ]

A.

plants can keep dry land from becoming desert

B.

it is good to get red of the grass in desert

C.

all places without much rain will become desert

D.

it is better to grow crops on dry land than to grow grass

(5)

Without plants,________

[  ]

A.

the land can become desert much more easily

B.

we don't have water

C.

the sun will be hot

D.

we get little rain

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A thousand years ago Hong Kong was covered by a thick forest. As more and more people came to  31  in Hong Kong, these trees were cut down and burnt. Now there is 32  forest left, though there are still some small areas covered with trees. We call these woods.
  Elephants, tigers and many 33  animals were living in the thick forest. When people came to live in Hong Kong, the 34  began to die out. Early farmers grew rice and 35  pigs and chickens in the valleys. They cut down the trees and burnt them. They needed 36  to keep themselves warm in winter, to cook their food and to keep away the dangerous animals. Elephants quickly disappeared because there was not enough food for them.  37  did most of the wolves and tigers. Monkeys and many other animals soon 38  in the same way.
  You might think that there are no longer any animals in Hong Kong 39  in the zoos. But there are still about 36 different animals 40  there. One of the most interesting of Hong Kong's animals is the barking deer. These are beautiful little animals 41  a rich brown coat and a white patch (补丁) under the tail. They look like deer but they are much smaller. They are less than two feet 42 . They make a noise rather like a dog 43 . In Hong Kong the barking deer has only a real enemy-- 44 . People hunt these little animals though it is illegal (违法的). There are now not many barking deer left. So it is important 45  people to protect wild animals.

【小题1】
A.work B.study C.live   D.enjoy
【小题2】
A.many B.a few C.no   D.not
【小题3】
A.otherB.others  C.the other D.another
【小题4】
A.peopleB.animals C.plants  D.things
【小题5】
A.grewB.made  C.got  D.kept
【小题6】
A.fireB.hotness C.heat  D.stoves(炉子)
【小题7】
A.so  B.Such  C.As  D.Nor
【小题8】
A.lived B.died(死)C.came  D.left
【小题9】
A.besidesB.except  C.andD.or
【小题10】
A.live B.to live C.livedD.living
【小题11】
A.have B.without C.with  D.get
【小题12】
A.highB.higher  C.shortD.shorter
【小题13】
A.ShoutingB.crying C.barking D.talking
【小题14】
A.tigersB.men C.wolvesD.elephants
【小题15】
A.to  B.for  C.like   D.of

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A thousand years ago Hong Kong was covered by a thick forest. As more and more people came to  1  in Hong Kong, these trees were cut down and burnt. Now there is  2  forest left, though there are still some small areas covered with trees. We call these woods.
Elephants, tigers and many  3  animals were living in the thick forest. When people came to live in Hong Kong, the  4  began to die out. Early farmers grew rice and  5  pigs and chickens in the valleys. They cut down the trees and burnt them. They needed  6  to keep themselves warm in winter, to cook their food and to keep away the dangerous animals. Elephants quickly disappeared because there was not enough food for them. So did  7  of the wolves and tigers. Monkeys and many other animals soon  8  in the same way.
You might think that there are no longer any animals in Hong Kong  9  in the zoos. But there are still about 36 different animals  10  there. One of the most interesting of Hong Kong's animals is the barking deer. These are beautiful little animals  11  a rich brown coat and a white patch (补丁) under the tail. They look like deer but they are much smaller. They are less than two feet(英尺)  12 . They make a noise rather like a dog  13 . In Hong Kong the barking deer has only a real enemy-- 14 . People hunt these little animals though it is illegal (违法的). There are now not many barking deer left. So it is important  15  people to protect wild animals.
【小题1】
A.workB.studyC.live    D.enjoy
【小题2】
A.many  B.a fewC.noD.not
【小题3】
A.other   B.others  C.the other D.another
【小题4】
A.people B.animals  C.plants   D.things
【小题5】
A.grew  B.madeC.gotD.kept
【小题6】
A.fire  B.hotness  C.heat   D.stoves(炉子)
【小题7】
A.much  B.a littleC.a lots   D.most
【小题8】
A.lived  B.died  C.came   D.left
【小题9】
A.besidesB.except  C.and  D.or
【小题10】
A.live  B.to live  C.lived D.living
【小题11】
A.haveB.without  C.with   D.get
【小题12】
A.high   B.higher  C.short  D.shorter
【小题13】
A.shouting B.crying  C.barking  D.talking
【小题14】
A.tigers B.men  C.wolvesD.elephants
【小题15】
A.to   B.for  C.like    D.of

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A thousand years ago Hong Kong was covered by a thick forest. As more and more people came to  1  in Hong Kong, these trees were cut down and burnt. Now there is  2  forest left, though there are still some small areas covered with trees. We call these woods.
Elephants, tigers and many  3  animals were living in the thick forest. When people came to live in Hong Kong, the  4  began to die out. Early farmers grew rice and  5  pigs and chickens in the valleys. They cut down the trees and burnt them. They needed  6  to keep themselves warm in winter, to cook their food and to keep away the dangerous animals. Elephants quickly disappeared because there was not enough food for them. So did  7  of the wolves and tigers. Monkeys and many other animals soon  8  in the same way.
You might think that there are no longer any animals in Hong Kong  9  in the zoos. But there are still about 36 different animals  10  there. One of the most interesting of Hong Kong's animals is the barking deer. These are beautiful little animals  11  a rich brown coat and a white patch (补丁) under the tail. They look like deer but they are much smaller. They are less than two feet(英尺)  12 . They make a noise rather like a dog  13 . In Hong Kong the barking deer has only a real enemy-- 14 . People hunt these little animals though it is illegal (违法的). There are now not many barking deer left. So it is important  15  people to protect wild animals.

【小题1】
A.workB.studyC.live    D.enjoy
【小题2】
A.many  B.a fewC.noD.not
【小题3】
A.other   B.others  C.the other D.another
【小题4】
A.people B.animals  C.plants   D.things
【小题5】
A.grew  B.madeC.gotD.kept
【小题6】
A.fire  B.hotness  C.heat   D.stoves(炉子)
【小题7】
A.much  B.a littleC.a lots   D.most
【小题8】
A.lived  B.died  C.came   D.left
【小题9】
A.besidesB.except  C.and  D.or
【小题10】
A.live  B.to live  C.lived D.living
【小题11】
A.haveB.without  C.with   D.get
【小题12】
A.high   B.higher  C.short  D.shorter
【小题13】
A.shouting B.crying  C.barking  D.talking
【小题14】
A.tigers B.men  C.wolvesD.elephants
【小题15】
A.to   B.for  C.like    D.of

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