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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 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.
1.What things don’t most plants need to grow well according to the passage?
A．Warmth. B．Food. C．Sandy beach
2.What does the underlined word “cracks” mean in the passage?
A．表面 B．缝隙 C．夹层
3.From the passage, we know that it is for plants to grow in dry places.
A．difficult B．impossible C．important
4.The reason why most plants can’t grow on the sandy beach is that .
A．there isn’t enough sunlight
B．there is too much water
C．it has little food for plants
5.The passage can most probably be found in a book.
A．science B．history C．travel
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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 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.
1. According to the passage, plants need ______ things to grow well.
A. two B. three C. four D. five
2. What does the underlined word "cracks" mean in the text?
A. 缝隙 B. 表面 C. 夹层 D. 底部
3. From the passage, we can know it is for plants to grow in dry places.
A. easy B. difficult C. impossible D. important
4. The reason why most plants can't grow on the sandy beach is that _______.
A. there isn't enough sunlight B. there is too much water
C. it is too crowded there D. it has little food for plants
6. The passage can most probably be found in a ______book.
A. science B. history C. travel D. math
查看习题详情和答案>>B. water and minerals
C. the soil and air
D. all of the above
B. birds
C. plants
D. farmers
B. like
C. dislike
D. unhappy with
B. we need one another in order to live
C. the forest is a whole world of its own
D. the forest is full of different living things
B. We like the living things in the forest.
C. We need farmers to grow our food in the forest.
D. We are the same as the forest: We need each other to live on.
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 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.
B. three
C. four
D. five
B. 表面
C. 夹层
D. 底部
B. difficult
C. impossible
D. important
B. there is too much water
C. it is too crowded there
D. it has little food for plants
B. history
C. travel
D. math
阅读理解
What do you think of a forest? What do you see? Just trees? Or do you see many other things, such, as singing birds, colorful plants and wild flowers?
The forest is a whole world of its own. It is full of many different living things(生物). But even though they are all different, they have one thing in common: they all need each other in order to live on.
The trees feed the forest “people” by making food in their leaves; by using sunlight to join water and minerals (矿物)from the soil and air. Their deep network of roots joins the soil together and stops it from dying out, making it possible for living things to live in it.
Human beings (人类)are like the living things in the forest. We need one another in order to live. We need the farmers to grow our food, railroad and truck drivers to bring it to our shops and clerks(售货员)to sell it to us. We need people to prepare our food and, cook it and others to take our waste things away. Then, of course, we need doctors, nurses, government leaders, mailmen, telephone operators, and many others.
We also need other human beings in another way. We need people for friendship, to talk over our problems, exchange ideas. Think how lonely and unhappy you would be if you lived all alone.
Life is a matter of giving and taking. We need to help other people as much as we need other people to help us. Think what a good feeling you have when you have done something for someone else. You know, being a volunteer is so great !
(1)According to the text, colorful plants and flowers live on________.
[ ]
A. the leaves of the trees
B. water and minerals
C. the soil and air
D. all of the above
(2)It is the ________ that make it possible for living things to live in the forest.
[ ]
(3)According to the writer, human beings are ________ the forest “people”.
[ ]
(4)The writer mainly wants to tell us ________.
[ ]
A. we need people for friendship
B. we need one another in order to live
C. the forest is a whole world of its own
D. the forest is, full of different living things
(5)Which one is the relationship (关系)between a forest and your life?
[ ]
A. We can see trees in the forests.
B. We like the living things in the forest.
C. We need farmers to grow our food in the, forest.
D. We are the same as the forest: we need each other to live on.
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