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Passage Three
Trees are useful to Man in three very important ways: they provide him with wood and other products; they give him shade; and they help to prevent droughts and floods.
Unfortunately in many parts of the world, Man has not realized that the third of these services is the most important. In his eagerness to draw quick profit from the trees, he has cut them down in large numbers, only to find that with them he has lost the best friends he had.
Two thousand years ago a rich and powerful country cut down its trees to build warships, with which to gain itself an empire (帝国). It gained the empire but , without its trees, its soil became hard and poor. When the empire fell to pieces, the home country found itself faced by floods and starvation.
Even where a government realizes the importance of a plentiful supply of trees, it is difficult for it to persuade the villager to see this. The villager wants wood to cook his food with; and he can earn money by making charcoal or selling wood to the townsman. He is usually too lazy or too careless to plant and look after new trees. So, unless the government has a good system of control , or can educate the people, the forests slowly disappear.
This does not only mean that the villagers’ sons and grandsons have fewer trees. The results are even more serious: for where there are trees their roots break the soil up – allowing the rain to sink in – and also bind the soil, thus preventing its being washed away easily; but where there are no trees, the rain falls on hard ground and flows away on the surface, causing floods and carrying away with it the rich top-soil, in which crops grow so well. When all the top-soil is gone, nothing remains but worthless desert.
31. Trees can help us in many ways , among which the most important is that _______.
A. they can be used to build warships
B. they can be used to cook food with
C. they provide us with wood and other products
D. they help prevent droughts and floods
32. Which of the following may serve as an example of “drawing quick profit from the trees” (see paragraph 2) ?
A. A villager cuts down the trees and sells them.
B. People make use of trees to prevent drought and floods.
C. A group of people sit and rest in the shade of a big tree.
D. People plant trees and use them to attract birds.
33. Paragraph 3 gives an example to show _____.
A. how trees were cut down to build warships
B. how a rich and powerful country gained itself an empire
C. how a powerful empire rose and fell
D. how nature punishes man who failed to protect his environment
34. The story of the empire suggests that _____.
A. without trees there would be no warships
B. it was trees that made the empire fall to pieces
C. trees could help make a country rich and powerful
D. trees made the soil hard and poor
35. In the last sentence, “ nothing remains but worthless desert” means _____.
A. desert remains nothing worthless
B. all are gone except worthless desert
C. desert is far from worthless
D. worthless desert remains nothings
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