完形填空 (共20小题；每小题1分，满分20分)
请认真阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
Certainly dustmen prefer to be known as "Reuse Collection and Disposal Officers". You may think that this is rather
36 , and it is better to call a spade a spade. But dustmen can be as
37 as people of any other occupation, though we must
38 that their job is not a
39 one in the world. We often take dustmen for granted. Perhaps because they usually come very early in the morning, before most people are
40 .We are likely to forget their
41 .Our dustbins are
42 regularly, but we
43 stop to think about the men who do this. However, it is one of the most important jobs in the world, and when there are no dustmen to
44 the rubbish, the general
45 soon becomes aware that something is wrong. Recently, the dustmen of England went on strike for higher wages.
During the first few days it was regarded as a
46 .But when the first two weeks had passed, and the dustbins were overflowing in nearly every backyard in the country, the joke did not seem so
47 any more.
48 the strike continued, people could not
49 the hills of rubbish around their dustbins, and they looked for other places in which to
50 it. Even Leicester Square, in the heart of West End of London, was
51 high with plastic bags full of smelly rubbish. This was a（n）
52 attraction that the people of London were not at all
53 to see. Even when the strike was over, it took several weeks for the country to get cleaned up completely. Perhaps now the English people appreciate the work of
54 dustmen rather more
55 and won't take them for granted any more.
| 【小题1】 | | A．clever | B．silly | C．interesting | D．reasonable |
|
| 【小题2】 | | A．sensitive | B．careless | C．hopeful | D．shy |
|
| 【小题3】 | | A．realize | B．believe | C．know | D．admit |
|
| 【小题4】 | | A．necessary | B．difficult | C．romantic | D．heavy |
|
【小题6】.
| A．existence | B．presence | C．absence | D．performance |
| 【小题7】 | | A．cleaned | B．filled | C．emptied | D．burned |
|
| 【小题8】 | | A．generally | B．frequently | C．sometimes | D．seldom |
|
| 【小题9】 | | A．take away | B．take off | C．take up | D．take on |
|
| 【小题10】 | | A．society | B．citizen | C．public | D．community |
|
| 【小题11】 | | A．trick | B．joke | C．trouble | D．show |
|
| 【小题12】 | | A．pleasing | B．excited | C．stupid | D．funny |
|
| 【小题13】 | | A．When | B．While | C．As | D．Because |
|
| 【小题14】 | | A．bear | B．contain | C．manage | D．control |
|
| 【小题15】 | | A．keep off | B．give up | C．take care of | D．get rid of |
|
| 【小题16】 | | A．crowded | B．piled | C．fixed | D．put |
|
| 【小题17】 | | A．business | B．industrial | C．tourist | D．agricultural |
|
【小题18】.
| A．disappointed | B．serious | C．nervous | D．happy |
| 【小题20】 | | A．highly | B．eagerly | C．lowly | D．entirely |
|
)，其电路如图l 6(b)所示．二极管具有单向导电性，电流只能从二极管的正极流入，负极流出．演示时，将塑料管上下翘动，磁铁便在线圈中左右移动，相当于线圈导体在磁场中做切割磁感线运动，这时会看见两只发光二极管轮流发光．
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