27. At first, the speaker was referring to the problem of pollution in the country, but halfway in her speech, she suddenly _B_ to another subject.

　　A committed B switched C favoured D transmitted

　　switch to another subject 轉(zhuǎn)換話題; switch to another channel 轉(zhuǎn)換頻道。

　　28. It is politely requested by the hotel management that radios _C_ after 11 o'clock at night. [虛擬語氣]

　　A were not played B not to play C not be played D did not play

　　29. Although I like the appearance of the house, what really made me decide to buy it was the beautiful _D_ through the window.

　　A vision B look C picture D view

　　view n. 景色，風(fēng)景，視野，視域。

　　30. Cancer is second only _B_ heart disease as a cause of death.

　　A of B to C with D from

　　具有比較意味的形容詞都要與介詞to搭配。

　　32. The manager needs an assistant that he can _A_ to take care of problems in his absence. [in his absence 在某人不在場的情況下]

　　A count on B count in C count up D count out

　　presence n. 到場，出席; in one’s presence 在某人在場的情況下。

　　count on=depend on 指望，依靠，依賴; count up 算出總數(shù);

　　count in 把…算在內(nèi); count out 把...排除在外。

　　33. The organization had broken no rules, but _A_ had it acted responsibly.

　　A neither B so C either D both

　　34. We gave out a cheer when the red roof of the cottage came _D_ view.

　　A from B in C before D into

　　come into view 進入視野，進入眼簾。 cheer n. 歡呼; cheers 干杯;

　　cheer-team 拉拉隊; cheer-leader 拉拉隊長。英語中為了…干杯用介詞to引起。

　　to your health 為了你的健康干杯; to friendship為了友誼干杯。 bottom up 先干了。

　　35. They took _D_ measures to prevent poisonous gases from escaping.

　　A fruitful B beneficial C valid D effective

　　take effective measures 采取有效措施。 valid adj. 有效的，成立的。

　　36. Doing your homework is a sure way to improve your test scores, and this is especially true _A_ it comes to classroom tests.

　　A when B since C before D after

　　sure 做定語時表示“可靠的、穩(wěn)妥的”。 come to 談到，提及。

　　37. Careful surveys have indicated that as many as 50 percent of patients do not take drugs _D_ directed.

　　A like B so C which D as

　　drug n. 藥品，毒品。 gay adj. 放蕩的，快樂的; n. 同性戀者，尤指男性同性戀。

　　so后面加過去分詞表示一種程度。 as后面加過去分詞時表示“如同…那樣，正如…那樣”。

　　53. I hope all the precautions against air pollution, _D_ suggested by the local government, will be seriously considered here.

　　A while B since C after D as

　　precautions n. 防治措施; precautions against 防治…的措施。

　　after being + 過去分詞，注意：after后面不能直接加過去分詞。

　　38. In developing countries people are _C_ into overcrowded cities in great numbers.

　　A breaking B filling C pouring D hurrying

　　pour into 涌入，蜂擁而入。 break into 強行闖入。

　　39. It's reported that by the end of this month the output of cement in the factory _A_ by about 10%. [output 產(chǎn)量]

　　A will have risen B has risen C will be rising D has been rising

　　表達將來的行為在將來某時間之前完成用將來完成時。