2010年职称英语理工B模拟试题之完型填空

　　阅读下面的短文，文中有15处空白，每处空白给出4个选项，请根据短文的内容从4个选项中选择1个最佳答案，涂在答题卡相应的位置上。

　　Tree

　　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 (51) drought and floods.

　　Unfortunately, in many parts of the world, man has not (52) 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 (53), only to find that with the trees used he has lost the best friends he had. Two thousand years ago a rich and powerful country cut down its " (54) to build warships with which to gain itself an empire. It gained the empire but without its trees, its soil became hard and (55). When the empire fell to pieces, the home country found (56) faced with floods and starvation.

　　Even where a government realizes the (57) of a rich supply of trees, it is difficult for it to persuade the villager to see this. The villager wants wood to (58) his food with; and he can earn money (59) making charcoal (木炭) or selling wood to the townsman. He is usually too lazy or (60) careless to plant and look after new trees. So, unless the government has a good (61) of control, or can educate the people, the forests will slowly disappear.

　　This does not only (62) that the villagers' sons and grandsons have fewer trees. The results are even more (63). For where there are trees, their roots break up the soil allowing the rain to sink in and also bind the soil, thus preventing the (64) from 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 top-soil, in (65) crops grow so well. When all the top-soil is gone, nothing remains but worthless desert.

　　51 A give B use C prevent D lead

　　52 A hoped B realized C promised D planned

　　53 A sense B things C prices O numbers

　　54 A bricks B hills C trees O crops

　　55 A rich B poor C famous O enough

　　56 A itself B himself C it D-him

　　57 A practice B importance C feeling D space

　　58 A eat B sell C grow D cook

　　59 A by B to C beside D down

　　60 A well B towards C too D along

　　61 A event B system C supply D figure

　　62 A mean B believe C talk D understand

　　63 A reliable B useful C serious D limited

　　64 A floods B rocks C villagers D soil

　　65 A which B when C what D where

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