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1、+*一、时态和语态1. 如何解答时态问题 例1：Youve already missed too many classes this term. You _ just last week. A. missedB. would missC. had missedD. have missed 例2：Anne asked Tom _ the key. A. when he leftB. where he had leftC. how he leftD. why did he left考试重点：2. 与完成时有关的时态 现在完成时 (have done) since, for/ in the past
2、 few months, up to now 例1：Collecting toy cars as a hobby becomes increasingly popular during the past fifty years. A B C D 例2：English _ in a new way at my college in the past few years. A. has been taught B. was being taught C. has been taught D. had been taught. 过去完成时 (had done)例3：Anne asked Tom _
3、the key. A. when he leftB. where he had leftC. how he leftD. why did he left例4：The chemistry class_ for five minutes when we hurried there. A. had been onB. had begunC. has been onD. would began 将来完成时 (will have done) by例5：Were late I expect the film_ by the time we get to the cinema. A. had already
4、 started B. have alreadyC. will already have started D. have already been started. 现在完成进行时 (have been doing)例6：It seems oil _ from this pipe for some time. Well have to take the machine apart to put it right.A. had leaked B. is leaking C. leaked D. has been leaking 过去完成进行时 (had been doing) 将来完成进行时(w
5、ill have been doing )例7：By the time you arrive this evening, _for two hours. A. I will studyB. I will have been studiedC. I had studiedD. I will have been studying.3. 在时间和条件状语从句中不用将来时态用一般现在时代替一般将来时例1：When the mixture_, it will give off a powerful force. A. will heatB. will be heatedC. is heatedD. ha
6、s heated 例2：please be sure to telephone me the next time you _. A. will comeB. would comeC. shall comeD. come用现在完成时代替将来完成时例3：Smith is to study medicine as soon as he_ military service. A. will finishB. has finishedC. finishD. would finish注意：例4：No one can be sure if the car on display fits him or her
7、 until he or she_ them. A. triesB. will tryC. are tryingD. have tried4. 考试小窍门考试中如果遇到与完成时态相关的选项，要重点加以研读，一般说来是正确答案。二、情态动词1. 几个情态动词的否定式的含义cant may notmustntneedt 2. 表示推测的几个情态动词用法must表示肯定的推测，意思是“一定” +do 对现在情况的推测must +have done 对过去情况的推测 例1：I _ asleep in the corner, for I remember nothing of what happened
8、 during the night. A. might fallB. must fallC. must have fallenD. can have fallen cant/couldt表示否定的推测，意思是“不可能” +do 对现在情况的推测 cant/couldnt +have done 对过去情况的推测 may/might not表示可能性很小的推测，意思是“也许” +do 对现在情况的推测 may/might +have done 对过去情况的推测3. 情态动词的完成时虚拟语气的用法neednt have doneshould have doneshould not have done
9、ought to have donecould have done 4. 考试小窍门在遇到情态动词加完成时和情态动词加原形同时出现的情况下，一般说来情态动词加完成时是正确答案。 Must do Must have done 三、虚拟语气赵文通 考试重点：1. 条件句中的虚拟语气例：I would ask George to lend us the money if I _ him. A. had knownB. have knownC. knewD. would know 例：If a better material _, the strength of the part would have
10、 been increased. A. had been usedB. had been usingC. being usedD. using条件句中的虚拟语气需要注意以下三点： 如果条件句中有were, had, should时，可以把if省略，然后把这三个单词提前，形成倒装。例3：_ the advice of his friends, he would not have suffered such a heavy loss in his business.A. If he tookB. if he should takeC. Were he to takeD. Had he taken
11、含蓄条件句中虚拟语气的应用三级考试中经常出现的三个句型：But for/without，, otherwise/or, but/though.例：But for your help, I _ the work in time. A. did not finishB. could not finish A. will not finishD. would not have finished例：Without electricity, human life _ quite different today.A. isB. will beC. would have been D. would be例：
12、He was very busy yesterday; otherwise he_ to the meeting.A. would have comeB. would comeC. could comeD. had come例：We would have made a lot of money, but we halfway A. gave upB. had given upC.would give upD. were to give up 错综时间条件句例：If I were you, I would not have missed the film last night.2. (should )+动词原形在某些从句中的应用 1)当宾语从句从的谓语是suggest, request, insist, desire , demand, propose, o
