题目列表(包括答案和解析)
Trees are useful to man in three important ways: they give him wood and other useful things, they give him cool places, and they help to stop drought and flood.
Unluckily, in many parts of the world, man has not found that the third of these points is the most important. Man wants to make money from trees, so he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And also, he is usually too careless to plant and look after new trees. So the forests slowly disappear.
This does not only mean that man will have fewer trees. The results are even worse: for where there are trees, their roots break up soil-make the rain in-and also bind the soil, thus stopping it from being washed away easily; but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When all the top-soil is gone, nothing is left but useless desert.
1.The most important points of trees to man is ________.
A. they help him to make money
B. they give him cool
C. they give him wood and other things
D. they help him to stop drought and floods
2.In many places forests slowly disappear because ________ .
A. many trees have been cut down by man
B. new trees are not well looked after
C. man has not paid enough attention to planting trees
D. all the above
3.Land becomes desert after all trees are cut down because ________ .
A. roots of trees break up the soil
B. there are too many rainfalls
C. strong winds bring a lot of sand
D. there are no longer trees to keep the rain and protect the top-soil.
4. Which title best fits the passage?
A. Trees and Man.
B. The Function of Tree Wood.
C. How do People do with Trees?
D. The Usage of Tree Roots.
Reading comprehension.
Trees are very useful to men in three important ways: they supply them with wood and other products; they give them shade; and they help to prevent drought and floods.
Unluckily, in many parts of the world, people have not realized the third of these services is the most important. In their eagerness to make money from trees, some people have cut trees down in large numbers, only to find that they have lost the best friends they had. And besides, they are usually too careless to plant and look after new trees, so the forests solely disappear.
This does not only mean that men will have fewer trees. The results are even more serious: where there are trees, their roots break up soil--allowing the rain to sink in--and also bind the soil, preventing it from being washed away easily; but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top--soil. When all the top--soil is gone, nothing stays but worthless desert.
Choose the best answer:
(1) The most important service of trees to men is that they ________.
[ ]
A
．help them to make moneyB
．give them shade and coolC
．help them to prevent drought and floodsD
．give them wood and other products(2) In many places forests slowly disappear because ________.
[ ]
A
．many trees have been cut downB
．new trees are not well looked afterC
．men haven't planted enough treesD
．all of the above(3) Land becomes desert after all trees are cut down because ________.
[ ]
A
．tree roots break up the soilB
．the rich top--soil will be carried away by floodsC
．of strong windsD
．there is too much rain(4) Some people cut down a large number of trees because ________.
[ ]
A
．they were eager to get wood from themB
．they were eager to make money from themC
．they didn't realize the importance of themD
．both B and C(5) Which of the following is not true?
[ ]
A
．Tree roots can make the top--soil rich and the ground hard.B
．Trees can prevent drought and floods.C
．Tree roots can break up soil.D
．Trees can make the rain sink into the ground.阅读短文，然后根据其内容回答问题。
We should look after our treesWe should always remember to look after our trees as they are very important for our planet and in our lives．
First, trees keep the air clean because they give off the gas oxygen, which humans and animals need to breathe．They also take in other gases, like carbon dioxide, that we do not need．
Second, because the roots of trees hold the soil together they stop it from being washed away．In some parts of the world where a great many trees have been cut down, the land has been completely destroyed．
Trees provide homes for many different types of birds and animals, and they also supply their food．If trees are cut down, there will be no place for these birds and animals to live and nothing for them to eat．
In addition, trees often help in keeping us cool because they shade us from the hot sun．
Sometimes they also offer shelter(遮蔽)or protection from bad weather．
Finally, trees are beautiful to look at．The world would be a much uglier place if there were no trees．
All around the world forests are being cut down．We should look after the trees that are left and make sure that more are planted to replace those that have already been destroyed．
1．Why are trees important to animals and birds?
______________________________________________
2．Why might trees be very important in summer?
______________________________________________
3．What parts of trees do you think birds and animals eat?
______________________________________________
4．Write a sentence which sums up(总结)the argument．
______________________________________________
5．Number these statements in the order in which they appear in the argument．
______________________________________________
Trees keep us cool because they shade us from the hot sun．
Trees are beautiful to look at．
Trees keep the air clean as they give off oxygen and take in carbon dioxide．
Trees provide homes for birds and animals．
The roots of trees hold the soil together．
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I am the Earth．Once I was in good health，but now I feel quite uncomfortable．
Yesterday I went to see Doctor Moon．She asked me，“What's wrong with you，Mr. Earth?”
I told her，“My children--the people--have destroyed the ozone（臭氧），so the sunshine is too strong．Now I have a high fever．Many trees have died．The dust（灰）always gets into my eyes．I smell the waste gas of cars every day．I can't take in clean air．I often suffer from earache，because I hear loud noises all the time．”
“Oh，Mr. Earth，” said the Moon，“Your illness is so serious．You must have a good rest and drink a lot of water every day．”
“That’s fine，but it often rains acid rain（酸雨），so I have no clean water to drink at all．” I replied．
“That's terrible! I'm very sorry，but I can't help you．” The Moon was very sad．
Oh，dear! What can I do? Who can save me?
1．Who did Mr. Earth see yesterday?
A．Doctor Moon． B．Doctor Sun． C．His children．
2．Why does Mr. Earth have a high fever?
A．the sunshine is too strong． B．He suffers from earache．
C．The dust gets into his eyes．
3．Who are Mr. Earth’s children?
A．The trees． B．The cars． C．The people．
4．Why does Mr. Earth have no water to drink?
A．Many trees have died． B．The ozone has been destroyed．
C．It often rains acid rain．
5．Which of the following is True?
A．The Earth is ill． B．The Earth is in good health．
C．The Moon can help Mr. Earth．
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