1、 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 _ the key. 例4 The chemi
2、stry class_ for five minutes when we hurried there. A. had been on B. had begun C. has been on D. 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 started B. have already C. will already have started D. have already been started.
3、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(will have been doing ) 例7 By the time you arrive this evening, _for two hours. A.
4、I will study B. I will have been studied C. I had studied D. 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 heat B. will be heated C. is heated D. has heated 例2 please be sure to telephone me the next time you _. A. will
5、 come B. would come C. shall come D. 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 finish B. has finished C. finish D. would finish 注意 例4 No one can be sure if the car on display fits him or her until he or she_ them. A. tries B. will try C. are trying D.
6、have tried 4. 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 not mustnt needt 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 during the nightA. might fall B. must fall C. mus
7、t have fallen D. can have fallen cant/couldt表示否定的推测 意思是“不可能” cant/couldnt may/might not表示可能性很小的推测 意思是“也许” may/might 3. 情态动词的完成时虚拟语气的用法 neednt have done should have done should not have done ought to have done could have done 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
8、气 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 known B. have known C. knew D. would know 例 If a better material _, the strength of the part would have been increased. A. had been used B. had been using C. being used D. 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
9、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 took B. if he should take C. Were he to take D. Had he taken 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 t
10、ime. A. did not finish B. could not finish A. will not finish D. would not have finished 例 Without electricity, human life _ quite different today. A. is B. will be C. would have been D. would be 例 He was very busy yesterday; otherwise he_ to the meeting. A. would have come B. would come C. could co
11、me D. had come 例 We would have made a lot of money, but we halfway A. gave up B. had given up C.would give up D. 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, order, co
12、mmand, arrange等动词时,如:例 I suggested that we should go there on foot. 注意:当insist表示坚持认为之意时, 不用虚拟语气,用陈述语气. 如:例 The man insisted that he had never stolen the money ( 2) It is ordered/desired/decided/requested/strange/important/natural/ 等后的主语从句中 例 It is desired that we should get everything ready tonight
13、( 3) advice, idea, order, plan, demand, proposal, suggestion, request等名词之后的表语从句和同位语从句中.如:例 My suggestion is that we should hold a meeting this evening 3. wish后的宾与从句中应当用虚拟语气 4. if only 引导的感叹句中 5. as if/as though引导的状语从句中 6. would rather后的句子的虚拟语气谓语动词用过去式 7. it is (high) time that .句型中, 从句的谓语动词用过去式 四、非谓语动词 1. 不定式 不定式的逻辑主语 例 The road is wild enough for cars to pass by
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