Question

1.__ They provide him wood and other products; they give him shade; and they help to prevent drought and floods.

2.___  In his eagerness to draw quick profit from the trees, he has cut them down in large numbers.

Two thousand years ago, a rich and powerful country cut down its trees to build warships, with which to gain itself an empire. It gained the empire but, without its trees, its soil became bare and poor. When the empire fell to pieces, the country found itself faced by floods and starvation.

Even where a government realizes the importance of a plentiful supply of trees, it is difficult sometimes to make the people realize this. 3.__ So unless the government has a good system of control, or can educate the people, the forests slowly disappear.

4.___ 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 hold the soil. 5.___ But where there are no trees, the rainfalls on hard ground and flows away on the surface, and this causes floods and the rain carries away the rich topsoil in which crops grow. When all the topsoil is gone, nothing remains but worthless desert．

A. This does not only mean that there will be fewer trees.

B. Trees are useful to man in three very important ways.

C. Unfortunately, in many parts of the world, man has not realized the third of these services is the most important.

D. This prevent the soil from being washed away.

E. If there were no more trees, something terrible would happen.

F. However, a lot of trees are being cut down.

G. They cut down the trees but are too careless to plant and look after new trees.

Answer

1.B

2.C

3.G

4.A

5.D

【解析】

试题分析:本文强调了森林对人类的重要性。树木给人提供阴凉，抵挡洪水和干旱。曾经有人为了建造战船而砍掉了大量的树木，但是等他的帝国建立之后，他的人民却因为饥荒和洪水饱受磨难。树木对人来说是十分重要的，我们不能因为一己私利而过度砍伐它们。

1.B考查对上下文的理解和推理判断能力。根据下文They provide him wood and other products; they give him shade; and they help to prevent drought and floods. . 可知树木对人有三方面重要的地方，B选项Trees are useful to man in three very important ways.符合，故选B。

2.C考查对上下文的理解和推理判断能力。根据下文In his eagerness to draw quick profit from the trees, he has cut them down in large numbers.可知上面讲的是不保护树木的做法，故 Unfortunately, in many parts of the world, man has not realized the third of these services is the most important. 符合，所以选择C.

3.G考查对上下文的理解和推理判断能力。下文So unless the government has a good system of control, or can educate the people, the forests slowly disappear.讲了森林的消失，G选项They cut down the trees but are too careless to plant and look after new trees. 是原因，故选G。

4.A考查对上下文的理解和推理判断能力。下文The results are even more serious。后果会更重要，可知上文写到了后果，A选项This does not only mean that there will be fewer trees.符合，故选A。

5.

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