【2011北京卷,21】Experiments of this kind in both the U.S. and Europe well before the Second World War.
A. have conducted B. have been conducted C. had conducted D. had been conducted
【答案】D
【考点】考查动词时态和语态。
【解析】句意为“就在二战爆发前，美国和欧洲都进行过这种实验。”首先考虑语态，主语experiment与conduct构成动宾关系，谓语使用被动形式。题干中出现the second war是过去的时间点，before the second war是过去的过去，因此使用过去完成时。选D。
【2011北京卷,23】Tom in the library every night over the last three months.
A. works B. worked C. has been working D. had been working
【答案】C
【考点】考查动词的时态。
【解析】句意为“在过去的三个月里，Tom每天晚上都在图书馆里学习。”题干中出现的over the last three months，是明显提示用现在完成进行时或现在完成时。故选C。
【2011北京卷,27】--That must have been a long trip.
--Yeah, it us a whole week to get there.
A. takes B. has taken C. took D. was taking
【答案】C
【考点】考查动词的时态。
【解析】句意为“--那一定是长途旅行。--是的，我们花了整整一周时间才赶到那儿。”题干中must have done是对过去的肯定推测，提示时间在过去，描述过去的情况，排除A和B，D项was taking进行时态表将来，但事实上事情已发生，这与题意不符，因此选C。
【2011北京卷,32】--Bob has gone to California.
--Oh, can you tell me when he ?
A. has left B. left C. is leaving D. would leave
【答案】B
【考点】考查动词的时态。
【解析】句意为“--Bob已经去了加利福尼亚。--噢，你能告诉我他什么时候离开的？”Bob has gone to California，去的动作已经发生过，说明他离开的动作发生在过去，因此使用一般过去时。选B。
【2011天津卷,3】In the last few years thousands of films all over the world.
A.have produced B. have been produced C. are producing D. are being produced
【答案】B
【考点】考查动词的时态和语态。
【解析】句意为“在过去的几年时间里，全世界制作了成千上万部电影。”in the last few years在过去的几年时间里，其实是从过去算到现在，是现在完成时的标志。选B。
【2011天津卷,4】On her next birthday, Ann married for twenty years.
A.is B.has been C.will be D.will have been
【答案】D
【考点】考查动词的时态。
【解析】句意为“等到下次生日的时候，Ann结婚有二十年了。”her next birthday是将来的时间，for twenty years是个时间段。将来完成时表示持续到将来某时的动作或状态，故选D。
【2011上海春招,29】I’m sure you will do better in the test because you so hard this year.
A. studied B. had studied
C. will study D. have been studying
【答案】D
【考点】考查动词的时态。
【解析】句意为“我确信你将在这次考试中取得更好的成绩，因为这一年里你一直用功学习。”前半句I’m sure you will do better交代了时间起点是现在。because引起的状语从句不能用将来时，只能用现在时。this year今年，是个时间段。D项 have been studying表示一直持续到现在的动作，故用现在完成进行时。选D。
【2011上海春招,32】A lot of people often forget that oral exams to test our communicative ability.
A. design B. are designed
C. are designing D. are being designed
【答案】B
【考点】考查动词的时态和语态。
【解析】句意为“很多人经常忘记设计口语测试是用来检测我们的交际能力的。”一般现在时表示经常性动作或状态时，常与often, always, usually, sometimes, every day等时间状语连用。oral exams与design的关系存在着被动，故选B。
【2011山东卷,31】When I got on the bus, I I had left my wallet at home.
A. was realizing B. realized C. have realized D. would realize
【答案】B
【考点】考查动词的时态。
【解析】句意为“当我上了车后，我才意识到我把钱包落在家里了。”I had left my wallet at home发生在realized之前，前一句When I got on the bus给出的时间起点是过去时，故选B。
【2011山东卷,35】She was surprised to find the fridge empty; the child everything!
A. had been e ating B. had eaten C. have eaten D. have been eating
【答案】B
【考点】考查动词的时态。
【解析】句意为“她惊讶地发现冰箱里空空如也；她的孩子把里面的东西全吃光了！”“吃光”这个动作发生在“发现”之前，前一句交代了过去时间，因此选择过去的过去。故选B。
【2011江苏卷,21】--I hear you in a pub. what’s it like?
--Well, it’s very hard work and I’m always tired, but I don’t mind.
A.are working B.will work C.were working D.will be working
【答案】A
【考点】考查动词的时态。
【解析】句意为“--我听说你在酒吧里上班，这份工作怎么样？--咳，这是份辛苦活，老感到累，不过我不介意。”对话所用的现在时表明现在还在酒吧里上班，用现在进行时描述现阶段长期重复的一个动作。故选A。
【2011江苏卷,23】--Tommy is planning to buy a car.
--I know. By next month, he enough for a used one.
A. saves B .saved C.will save D. will have saved
【答案】D
【考点】考查动词的时态。
【解析】句意为“--Tommy将计划买车。--我知道，到下个月为止，他积攒的钱足够买一辆旧车了。”by next month是将来完成时的标志，全句表示在将来next month之前完成“积攒足够钱”的动作，对将来的时间next month产生影响，能买一辆旧车。故选D。
【2011福建卷,32】Last month, the Japanese government expressed their thanks for the aid they
from China.
A.receive B.are receiving C.have received D.had received
【答案】D
【考点】考查动词的时态。
【解析】句意为“上个月，日本政府对来自于中国的援助表示了感谢。”expressed是过去时，接受中国的援助发生在expressed之前，是过去的过去，故用过去完成时。选D。
【2011安徽卷, 32】--I didn’t ask for the name list. Why ______on my desk? --I put
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