16.When he was set free after twenty years in prison, he was amazed (　　)the changed world he found.

　　A.at

　　B.of

　　C.on

　　D.to

　　【参考答案】A。单词用法。be alnazed at/by对…很惊讶，惊异，如：We were absolutely amazed at his rapid recovery".他身体恢复得如此快，这令我们很吃惊。be amazed to do sth.惊讶的…，如：When I looked at my watch I was amazed to see that it Was well after six.我看表时惊讶地发现早过了六点。并无B和C这种搭配。

　　17.I'd like to (　　)a special table for the coming Valentine's Day.

　　A.preserve

　　B.deserve

　　C.eonserve

　　D.reserve

　　【参考答案】D。同根词辨析。preserve维持，保护，保存;deserve值得，应受;conserve保护，保存;reserve预定.保留。

　　18.Bill doesn't (　　)what people say about him.

　　A. concern

　　B. matter

　　C. care

　　D. disturb

　　【参考答案】C。词义辨析。concern关心，挂念;matter有关系，要紧;care在意，关心：disturb搅乱，扰乱。

　　19.Mr.Wilson said that he did not want to (　　)any further responsibilities.

　　A.take on

　　B.get on

　　C.put up

　　D.look up

　　【参考答案】A。短语辨析。take on承担，开始雇佣;get on登上，与…相处;put up建造，张贴，投宿：look up查看，查阅。

　　20.A curve is a line (　　)no part is straight and which has no angle.

　　A.that

　　B.whose

　　C.in which

　　D.of which

　　【参考答案】D。本题考查定语从句。因为是“no part of the line”，因此用of which。

　　21.I cannot tell the (　　)difference between the twins.

　　A. slender

　　B. single

　　C. simple

　　D. slight

　　【参考答案】D。词义辨析。slight轻微的，少量的;slight difference细微的差别;slender苗条的，修长的，微小的，微薄的;single单一的;simple简单的，简易的。

　　22.Words (　　)meaning, as we all know.

　　A. convince

　　B. convey

　　C. contribute

　　D. conquer

　　【参考答案】B。词义辨析。convey表达，传递，如：Ads convey the message that thin is beautiful.广告传递了这样一种信息，苗条是美。convince使确信;contribute做贡献;conquer征服。

　　23.I don't like to disturb you, because you're quite tired ( working hard today).

　　A.of

　　B.with

　　C.out

　　D. on

　　【参考答案】B。短语搭配。be tired of对…感到厌倦;be tired with因为…而疲备。C和D的意思也不正确。只有B，在这里表示原因。

　　24.I have to (　　)my visit as I'll be very busy next week.

　　A.call for

　　B.call on

　　C.call off

　　D.call in

　　【参考答案】C。短语辨析。call off取消，停止，如：The football match was called off on account of rain.足球赛因下雨取消。call for要求，需求;call on拜访，访问;call in召集，请。

　　25.He has been teaching for 2 years, but being a teacher is not his (　　).

　　A. chance

　　B. character

　　C. attitude

　　D. choice

　　【参考答案】D。词义辨析。choice选择，如：He has to make some important choices.他不得不做出几个重要的选择。chance机会;character性格，特点;attitude态度。

　　26.This is a very (　　)situation and we don't know how to face it yet.

　　A. comprehensive

　　B. compound

　　C. complicated

　　D. competent

　　【参考答案】C。同形词辨析。complicated复杂的;comprehensive综合的，理解的;compound混合的，复合的：competent能力强的。

　　27.Not once (　　)your sentence correctly.

　　A.you have copied

　　B.did you have copied

　　C.have you copied

　　D.have you been copied

　　【参考答案】C。本题考查倒装结构的用法。当否定词not在句首时，句子要用倒装结构。

　　28. (　　)many people prefer coffee, he drinks tea as usual.

　　A. While

　　B. Besides of

　　C. Because of

　　D. Except

　　【参考答案】A。本题考查句子的逻辑关系。while虽然，尽管，表示转折关系。

　　29.The ability (　　)is very important for any speaker.

　　A.to hear clearly

　　B.to be clearly heard

　　C.to hearing clearly

　　D.to being clearly heard

　　【参考答案】B。本题考查不定式作定语的用法。首先可以排除c和D。然后分析speaker和hear之间的关系是被动关系，因此B正确。

　　30.The plane crashed,its bombs (　　)as it hit the ground.

　　A.exploded

　　B.were exploded

　　C.exploding

　　D.were exploding

　　【参考答案】C。本题考查独立主格结构的用法。本句中表示伴随动作。