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Threes are useful to man in three very important ways:they provide him wood and other products;they give him shade;and they help
Threes are useful to man in three very important ways:they provide him wood and other products;they give him shade;and they help
admin
2022-11-01
69
问题
Threes are useful to man in three very important ways:they provide him wood and other products;they give him shade;and they help to prevent drought (干旱) and floods.
Unfortunately, in many parts of the world, man bas 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.
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 pieced, 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. They cut down the trees but are 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 there will be 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. This prevents the soil from being washed away. But where there are no trees, the rain falls 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.
It’s a great pity that________.
选项
A、man is only interested in building empires
B、man is eager to profit from trees
C、man hasn’t realized the importance of trees to him
D、man hasn’t found out that he has lost all trees
答案
C
解析
综合判断题。本文的主要目的在于指出树有益于人类,然而遗憾的是人类只为了眼前利益而乱砍滥伐,没有真正懂得树的重要性,因此选项C是正确的;而人类渴望从树身上获利这本身并没错,只是不该没有节制,所以选项B不正确。
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本试题收录于:
大学英语三级B级题库大学英语三级分类
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大学英语三级B级
大学英语三级
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