21 Mr. Brown is looking for his glasses. He thinks he them behind in the office yesterday.
A) forgot
B) put
C) left
D) set
【答案精解】C。句意：布朗先生在找他的眼镜。他以为昨天把它落在办公室了。本题考查的是词组搭配的用法。leave behind是指“把…落在后面，遗失”。其他三个词不与behin构成搭配，因此应该选C。
22. If you don't _______ smoking you will never get better.
A) give off
B) give up
C) give in
D) give out
【答案精解】B。句意：如果你不戒烟的话，你的身体总也好不了。本题考查动词give与不同的介词以及副词的搭配使用。give off指的是“出发、释放(蒸汽、光等)”;give up停止、放弃;give in让步、屈服;give out分发、散发。根据题意，只能选择B。23. What you said reminded me ________ something I read in the newspaper.
A) for
B) by
C) from
D) of
【答案精解】D。句意：你所说的使我想起了前几天在报上看到的消息。本题考查的短语的固定搭配。remind sb.of sth.使某人想起某事，其他的介词不能与remind构成短语。
24. Ships are ________ than planes that people take them mainly for pleasure.
A) very much slower
B) so much slower
C) too much slower
D) much more slower
【答案精解】B。句意：轮船比飞机慢许多，所以人们乘船主要是为了娱乐。本题考的是比较级的修饰语，还有so…that…句型。much可以修饰比较级。more后面只能加形容词的原级，例如She is much happier today.Our new house is more comfortable than the former one
.所以只有选B。
25. Our English teacher insisted that we spend more time on ________ reading.
A) worth
B) worthy
C) worthwhile
D) worthless
【答案精解】C。句意：英语老师坚持认为我们应该把更多的时间用在值得读的书上面本题考查的是近义词的辨析。四个选项虽然都是形容词，但用法各不相同。worth值得的，后面经常接动名词的主动形式;worthy值得的，后面要接of;worthwhile值得的，后面直接加名词;而worthless明显不沾边，因为它的意思恰好相反，为“不值得的”。所以，只有C项符合题意。
26. Doctor Green went on with his experiment on human being ________ the debate going on around him.
A) for all
B) but for
C) despite of
D) due to
【答案精解】A。句意：格林博士继续他的克隆人试验，尽管身边的人对此不乏争议。本题考查的是表示“尽管”这一意思的短语。各个选项中，for all表示尽管、虽然，与in spite of
和despite基本相同;but for表示若不是…;despite后面不需要加介词of;due to因为、由于。所以，根据题意，答案是A。
27 The new dictionary __________ him 15 dollars.
A) paid B) took C) spent D) cost
【答案精解】D。句意：这本新字典花了他15美元。本题考查的是动词词义辨析。take，spend，cost都有“花费”的意思。当人作主语时用spend，当物作主语时用cost;take常用在It takes sb.some time to do sth.这一句型中;pay一词指的是某人主动付款购买某物。根据题意，故选D。
28. His good sense of humor made a deep impression __________ us.
A) in B) on C) for D) to
【答案精解】B。句意：他的幽默感给我们留下了深刻印象。本题考查的是固定搭配。make/leave a deep impression on sb.意为“给某人留下深刻的印象”。
29.He had so little education he was unfit for this job.
A) but B) what C) as D) that
【答案精解】D。句意：他所受教育很少，以致于不适合做这个工作。本题考查的是固定搭配。so+形容词或副词+that clause，表示“如此…以致于…”。
30.___________ had enough time，they would have visited the Great Wall。
A) Had they B) Have they C) Would they have D) If they，
【答案精解】A。句意：如果他们有足够的时间，他们就去参观长城了。本题考查的是虚拟语气。本题是省略if的条件句的虚拟语气。由主句谓语动词的形式，可以判断是表示与过去事实相反的虚拟语气的句子，要求选的是条件句。如果用if开头，从句就应用过去完成时的形式，D选项不符合，排除。虚拟条件从句中的were，had或should可以前置而省略if。故选A。
31.Noise is unpleasant，_________ when you are absorbed in readin9.
A) essentially B) especially C) specially D) strangely
【答案精解】B。句意：噪音很讨厌，尤其是你专心致志看书的时候。本题考查的是副词辨析。essentially意为“本质上，实质上”;especially意为“特别，尤其，格外”;specially意为“专门地，特别地”;strangely意为“奇妙地;不可思议地;怪异地”。根据题意。选B。
32.It was so dark in the cinema that I could hardly ___________ my roommate.
A) pull out B) run out C) pick out D) turn out
【答案精解】C。句意：电影院里光线太暗，我差点没辨认出我的室友来。本题考查的是动词词组的词义辨析。pull out意为“驶出，抽出，拔出”;lain out意为“用完，耗尽，过期”;pick out意为“挑选出，分辨出辨认出”;turn out意为“露面，证明是，熄灭”。
33.When __________ along the street in the evening，the young lawyer saw her former teacher.
A) walking B) to walk C) walk D) walked
【答案精解】A。句意：晚上在街上散步的时候，这个年轻的律师遇见了她以前的老师。本题考查的是非谓语动词。分词短语作状语。分词短语或分词可作时间状语、原因状语、让步状语、条件状语或伴随状语。如果主句主语与分词是主动关系，就用现在分词;要是被动关系，就用过去分词。分词短语前面可以有when，while，once，if，unless，though等连词修饰。句中walk与the young lawyer的关系是主动关系，所以用现在分词，正确答案为A。
34.I’ll accept any job __________ I don’t have to get up early.
A) as soon as B) as long as C) as far as D) as much as
【答案精解】B。句意：只要不必早起，任何工作我都可以接受。本题考查的是连词词组。as soon as意为“尽快”;as far as意为“那么远，直到;至于”：as much as意为“和…一样多”;as long as句中的意思是“只要”。根据题意，正确答案为B。
35.They were angry because you __________ your promise.
A) didn't keep B) have not kept C) don't keep D) had not kept
【答案精解】D。句意：由于你没有遵守诺言，他们很生气。本题考查的是动词时态。主句用过去时，原因状语从句的动作发生在“生气”这件事前，所以时态需要用过去完成时。故选D。
36 Mary had an _________ ;she's been knocked down by a taxi.
A) event B) occurrence C) accident D) incident
【答案精解】C。句意：玛丽遇到了交通事故;她被出租车撞倒了。本题考查的是名词辨析。event意为“事件，偶然发生的事件，可指任何大小事件，但尤指历史上的重大事件”;occurrence意为“日常生活中发生的一般事件”;accident意为“事故，强调偶然或意外发生的不幸事情”;incident意为“突发事件，可指小事件或附带事件，又可指政治上具有影响力的事件或事变”。根据题意，应选C。
37. Mr. Allen said that he did not want to ________ any further responsibilities.
A) take on B) put on C) get on D) look up
【答案精解】A。句意：艾伦先生说他不想承担更多的责任。本题考查的是动词词组的不同搭配以及意义。take on承担;put on穿、戴上;get on上车、进展;look up向上看，查(字典)。因此只有A符合题意，故选A。
38 Only after I had reached the airport ________ that I had forgotten to take my ticket with me. A) I realized B) have I realized C) did I realize D) I had realized
【答案精解】C。句意：到机场后，我才发现忘记带飞机票了。本题考查倒装结构。当only置于句首时主句使用部分倒装结构，即将谓语部分的助动词置于主语之前。由从句中的过去完成时推知主句中应是过去时.因此C项正确。
39. Recently he ________ every night until after one o' clock, preparing for the final exam.
A) shows up B) show off C) stays in D) stays up
【答案精解】D。句意：为了准备期末考试，近来他每天夜里熬到凌晨一点。本题考查的是相关动词词组的词义辨析。show up揭露，露出，露面;show off炫耀，显耀;stay in在家，不外出;stay up熬夜，不睡觉。
40 In order to search for the escaped prisoner, the policeman decided to question ________ comes along this road. A) who B) whom C) whoever D) whomever
【答案精解】C。句意：为了寻找逃跑的犯人，警察决定询问每一个走这条路的人。本题考查引导词whoever的用法，whoever=any who，题中强调的是“任意谁，无论谁”who和whom不能表达这一意思，而whomever在从句中做宾语成分.不合题意。
