题目内容

Why do plants grow in some places and not in others? Why does some land have so much growing on it, while other land has almost no plants growing on it at all?
To grow, plants need several things. One is warmth. In very cold places almost nothing grows. Plants also need water. In very dry parts of the Earth only a few unusual plants can grow. That’s why dry deserts everywhere are almost not covered by trees or grass.
Plants must also have a place in which to put down their roots and grow. They find it difficult to grow on hard land. The town is built on hard land. The plants here have only the soil (土壤)found between the cracks of the stones to grow in.
Another thing plants must have before they can grow is food.
What will happen if we try to make things grow on the sandy beach? A few plants, such as beach grass, will grow in sand, but most plants won’t. Even if the weather is warm enough and we water the plants each day. Many of them will die because the sand on this beach has almost no food for plants.
【小题1】According to the passage, plants need _____ things to grow well.

A．twoB．threeC．fourD．five
【小题2】What does the underlined word “cracks” mean in the text?
A．缝隙B．表面C．夹层D．底部
【小题3】From the passage, we can know it is _______ for plants to grow in dry places.
A．easyB．difficultC．impossibleD．important
【小题4】The reason why most plants can’t grow on the sandy beach is that _______.
A．there isn’t enough sunlightB．there is too much water
C．it is too crowded thereD．it has little food for plants
【小题5】The passage can most probably be found in a ______ book.
A．scienceB．historyC．travelD．math


【小题1】C
【小题2】A
【小题3】B
【小题4】D
【小题5】A

解析试题分析：这篇短文主要描述了植物正在所需要的四种自然条件。
【小题1】根据短文描述，可知植生长需要四种条件，温度，水分，土壤和养分。故选C。
【小题2】联系下文of the stones 石头之间，可知此处指的是缝隙，故选A。
【小题3】根据第二段In very dry parts of the Earth only a few unusual plants can grow.描述，可知植物很难在干旱的地方生长，故选B。
【小题4】根据最后一段Many of them will die because the sand on this beach has almost no food for plants.描述，可知选D。
【小题5】这篇短文主要介绍了植物生长所需要的条件，故最可能出自一本科学类书籍，故选A。
考点：关于植物生长条件的说明文阅读
点评：本文浅显易懂，层次分明，学生很容易把握文章中心内容。答题中注意带着问题阅读短文，一般就能顺利找出答题依据。对于不能直接找到根据的问题注意联系上下文，根据短文中心总结出正确答案。

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Today there are 6.4 billion people on the earth. By the year 2050 there may be 12.5 billion . There are a lot of people to feed. We need more  and more food.
One way to produce more food is growing stronger plants. For thousands of years, farmers have made plants better. Every season, they pick the best plants for the next season. It works very slowly. Since 1983, scientists have been able to change plants more quickly by changing their genetic（遗传的） material. Foods from plants grown in this way are called genetically modified(改变的) foods, or GM foods.
By changing the genetic material of a plant, it is possible to make new plants. They make plants which are strong against plant diseases. They can also help in our diseases; a kind of rice is being prepared , for example , which stops people becoming blind.
Rich countries produce GM foods because they are easy to grow and bring in more money. Poor countries are interested in them because they help produce more food.
GM plants are not natural. No one knows how good or bad they are,. Making GM foods is only one way of feeding people in 2050. There are strong feelings against them, because they are unnatural. They may feed people , then hurt them or their children later. But both rich and poor countries are interested in their use, and they are not going to go away. In 2050, we may think differently about them.
【小题1】GM foods are made by                 
A. farmers            B. workers      C. scientists          D plants
【小题2】What are the good things about GM foods  ?
A. They make plants strong against diseases.   B. They are unnatural.
C. They can help in human diseases.            D  Both A and  C.
【小题3】GM foods        .
A. are a quick way to produce food    B. grow in the wild 
C. are safe                           D are grown only in rich countries
【小题4】Why do some people not like GM foods?
A. They are not useful.       B. They are not helpful.
C. They are not natural.      D  They are not cheap.
【小题5】From the passage we know that      .

A．GM foods will disappear one day in the future
B．GM foods will not disappear in the future
C．People will not be interested in GM foods.
D．People will have to stop using GM foods

Can plants eat people? Probably not，but there are many plants that eat meat．Some of them are big．And they can eat small animals．One famous meat-eating plant is the Venus flytrap(捕蝇草)．
The Venus flytrap is a very strange plant．It grows in dry parts of the United States．Its leaves are like the pages of a book．They can open and close very quickly．Inside the leaves，there are three small hairs．If a fly touches one of the hairs，the leaf closes quickly．The fly cannot get out．In about half an hour，the leaf presses the fly until it is dead．Then，the plant covers the fly．Slowly，the plant eats the fly．
Why do plants do it? Most plants get what they need from the sun，the air，and the ground．In some places，the ground is very poor．It doesn’t have all these important things，
especially nitrogen(氮)．Animal meat has a lot of nitrogen， so some plants eat meat to get what they need．Let’s hope that some of the bigger plants don’t get the same idea !
【小题1】The Venus flytrap is a kind of_________．

A．plantB．animalC．foodD．meat
【小题2】The Venus flytrap grows in_________．
A．most parts of the worldB．some parts of Africa
C．dry parts of the United StatesD．wet parts of England
【小题3】From the passage，we learn that_________．
A．all plants can eat peopleB．all plants can eat animals
C．some plants can eat peopleD．some plants can eat animals
【小题4】The underlined word“presses”probably means________ in Chinese．
A．挤压B．关上C．打开D．松开
【小题5】—Why do some plants eat animal meat? —Because_________．
A．plants are dangerous to animals
B．animals are dangerous to plants
C．plants want to get what they need from animal me
D．plants want to protect themselves against animals

Can plants eat people? Probably not, but there are many plants that eat meat. Some of them are big. And they can eat small animals. One famous meat-eating plant is the Venus flytrap.

The Venus flytrap is a very strange plant. It grows in dry parts of the United States. Its leaves are like the pages of a book. They can open and close very quickly. Inside the leaves, there are three small hairs.  If a fly touches one of the hair, the leaf presses the fly until it is dead. Then, the plant covers the fly. Slowly, the plant eats the fly.

Why do plants do such things? As we know, most plants get what they need from the sun, the air, and the ground. In some places, the ground is very poor. It does not have all these important things, especially nitrogen( 氮 ). Animal meat has a lot of nitrogen, so some plants eat meat to get what they need.  Let’s hope that some of the bigger plants don’t get the same idea!

1.The Venus flytrap is a kind of _______.

A. food    B. animal    C. plant   D. meat

2.Why do some plants eat animal meat? Because _______.

A. plants are dangerous to animals

B. animals are dangerous to plants

C. plants want to get what they need from animal meat

D. plants want to protect themselves against animals

3.Where can most plants get what they need?

A. From the people   B. From the animals

C. From the soil      D. From the sun, the air, and the ground           

 

Can plants eat people? Probably not，but there are many plants that eat meat．Some of them are big．And they can eat small animals．One famous meat-eating plant is the Venus flytrap(捕蝇草)．

    The Venus flytrap is a very strange plant．It grows in dry parts of the United States．Its leaves are like the pages of a book．They can open and close very quickly．Inside the leaves，there are three small hairs．If a fly touches one of the hairs，the leaf closes quickly．The fly cannot get out．In about half an hour，the leaf presses the fly until it is dead．Then，the plant covers the fly．Slowly，the plant eats the fly．

    Why do plants do it? Most plants get what they need from the sun，the air，and the ground．In some places，the ground is very poor．It doesn’t have all these important things，

especially nitrogen(氮)．Animal meat has a lot of nitrogen， so some plants eat meat to get what they need．Let’s hope that some of the bigger plants don’t get the same idea !

1.The Venus flytrap is a kind of_________．

    A．plant            B．animal           C．food       D．meat

2.The Venus flytrap grows in_________．

  A．most parts of the world                  B．some parts of Africa

  C．dry parts of the United States             D．wet parts of England

3.From the passage，we learn that_________．

A．all plants can eat people                 B．all plants can eat animals

    C．some plants can eat people               D．some plants can eat animals

4.The underlined word“presses”probably means________ in Chinese．

    A．挤压            B．关上             C．打开          D．松开

5.—Why do some plants eat animal meat? —Because_________．

A．plants are dangerous to animals

    B．animals are dangerous to plants

C．plants want to get what they need from animal me

D．plants want to protect themselves against animals

 
阅读短文，选择正确答案。
     Can plants eat people? Probably not, but there are many plants that eat meat. Some of them are big, and they
can eat small animals. One famous meat-eating plant is the Venus flytrap (捕蝇草).
     The Venus flytrap is a very strange plant. It grows in dry parts of the United States. Its leaves are like the
pages of a book. They can open and close very quickly. Inside the leaves, there are three small hairs. If a fly
touches one of the hairs, the leaf closes quickly. The fly cannot get out. In about half an hour, the leaf presses
the fly until it is dead. Then, the plant covers the fly. Slowly, the plant eats the fly.
     Why do plant do it ? Most plants get what they need from the sun , the air , and the ground. In some places,
the ground is very poor. It doesn't have all these important things, especially nitrogen (氮). Animal meat has a lot
of nitrogen, so some plants eat meat to get what they need. Let's hope that some of the bigger plants don't get
the same idea!
1. The Venus flytrap is a kind of _______.
[     ]
A. food
B. meat
C. plant
D. animal
2. The Venus flytrap grows in _______.
[     ]
A. most parts of the world
B. some parts of Africa
C. wet parts of England
D. dry parts of the United States
3. From the passage, we learn that ________.
[     ]
A. all plants can eat people
B. all plants can eat animals
C. some plants can eat people
D. some plants can eat animals
4. The underlined word "presses" probably means _______ in Chinese.
[     ]
A. 关上
B. 挤压
C. 打开
D. 松开
5. Why do some plants eat animal meat? Because _______.
[     ]
A. plants are dangerous to animals
B. animals are dangerous to plants
C. plants want to protect themselves against animals
D. plants want to get what they need from animal meat

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