1. The reference she made to her friend, the poet, was interesting but too _____ for anyone to appreciate.

　　A. drastic      B. dull      C. obscure      D. distinct

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　　[答案]C. obscure.

　　[注释]obscure(=not clearly seen or understood)模糊难懂得。drastic激烈的，严厉的；dull单调的；distinct清楚的，明显的；截然不同的（from）。

　　本题译文：她提到她的朋友----诗人时所说的话是令人感兴趣，但没有说清楚，以致没有人为此感激。

　　2. He _____ his engagement just before the wedding.

　　A. broke out              B. broke away from

　　C. broke off               D. broke up

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　　[答案]C. broke off.

　　[注释]break off(=cease suddenly, discontinue)突然中断

　　break off one's engagement(解除婚约)

　　Break off(=interrupt) one's conversation(打断谈话)

　　Break out(=begin suddenly)爆发

　　Break away from摆脱，从......退出

　　3. When she heard from the hospital that her father had died, she _____ into tears.

　　A. burst         B. went        C. exploded          D. fell

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　　[答案]A. burst

　　[注释]burst into tears放声大哭；又如：burst into thunderous cheers(发出雷呜般的欢呼)；burst into laughing(捧腹大笑)。

　　4. Your help is _____ for the success of the project.

　　A. indispensable         B. indicative

　　C. inevitable              D. inherent

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　　[答案]A. indispensable.

　　[注释]indispensable(to, for)不可缺少的，必需的。Indicative(of)指示的。Inevitable 不可避免的。Inherent固有的，内在的，天生的。

　　5. _____ the English examination I would have gone to the concert last Sunday.

　　A. In spite of       B. But for      C. Because of         D. As for

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　　[答案]B. But for

　　[注释]but for(=without, except for)若非，要不是：But for your help we could not have finished it in time.(要不是你的帮助，我们本来不会及时完工。)