大学英语三级语法知识总结汇总Word格式.docx

1、3. 一些句型中的虚拟形式：1. Its （high, about, the first, etc.） time （that） 动词过去时 例如 Its time we left. 例如 It is time we went to bed.2 would rather/sooner 宁愿 as if/ though 好像would rather/sooner 谓语用过去时 与现在或者将来相反as if/ though 谓语用过去完成时 与过去相反4练习1. I _ try it again if I_you.A. will； am B. should； am C. would； were D.

2、 would； had been2. If it _ not for the water， the plants _live.A. were； would not B. is； could not C. were； could D. did； could not3. If I _ that chance to show my ability, I _the president of this school.A. have not had； could not become B. had not had； would not have become C. did not have； could

3、not become D. doesnt have； will not become4. He _ by that burglar if you _ to save him.A. might have been killed； hadnt come B. will be killed； didnt comeC. may be killed； didt come D. could be killed； havent come5. If it _for your help， I _that hard time with so little money.A. were not； would not

4、spend B. is not； can not spendC. had not been； would not have spent D. have not been； will not spend6. Where _ you go if war _? breaks out B. do； will break outC. would； were to break out D. will； is to break out7. She wishes she _ that humiliating thing.A. doesnt do B. didnt do C. havent done D. ha

5、dnt done8. The chairman suggested that the meeting _ put off.A. can be B. be C. is D. will be9. It is vital that he _ immediately.A. should go B. must go C. goes D. went 10. It is time we _do our homework.A. begin to B. can begin to C. began to D. will begin to答案：1.选C。表示与现在事实相反的假设（指现在的假设） （译文; 如果我是你

6、，我会再试一次）2选A。表示与现在事实相反的假设（指现在的假设）。（译文：要是没有水，植物就不能存活。）3. 选B。表示与过去事实相反的假设。4 A。要不是你来救他，他早就被那个窃贼杀了。5. C。与过去事实相反的假设。（译：要没有你帮忙，我那点儿钱是无法度过那段艰苦岁月的。6.选C。表示与将来事实相反的假设。要是战争爆发了，你会上哪儿去？7.选D。虚拟语气用于宾语从句。她真希望自己没有做过那件丢脸的事情。8. 选B。虚拟语气用于表示“建议”等意义的动词后。主席建议会议延期举行。9. 选A。虚拟语气用于主语从句（It is was + 形容词 + that 引导的分句）。10. 选C。虚拟语气

7、用于定语从句It is time （that）.句型。我们该开始做作业了。二动词的时态1. 各个时态动词基本变形一般现在时be（is,am,are） do/does现在进行时be （is/am/are）+ doing现在完成时have/has done现在完成进行时have/has been doing一般过去时was/weredid过去进行时was/were doing过去完成时had done过去完成进行时had been doing 一般将来时will do 将来进行时将来完成will have done将来完成进行时will have been doing一般过去将来时would do

8、 过去将来进行时would be doing过去将来完成时would have done过去将来完成进行时would have been doing 2. 时间状语与动词时态的搭配一定的时态往往和一定的时间状语连用。always ,usually, sometimes, 一般现在时 do/does am is arelast week, yesterday, a few days ago 一般过去时 did was/ were next week, tomorrow, in a week, this year 一般将来时 will donow, at present, at this mome

9、nt 现在进行时 be +doingso far, up to now, by the time, since的主句 现在完成时 has/have done3. 练习，用动词的适当形式填空1. He _ （be） eighteen next year.2. It _ （rain） every day so far this month.3. Mozart _ （write） more than 600 pieces of music.4. If it _ （rain） tomorrow，well have to stay at home.5. How fast _ he _ （drive） w

10、hen the accident happened?6. By the time Mr. Smith left school，he _ （teach） that course for twenty-five years.7. Perhaps he _ （finish） reading the book by this time tomorrow.1. 填will be。 next year为表示将来时态的时间状语 2. 填has rained。so far是“到目前为止”的意思，常和现在完成时搭配使用。3. 填wrote。Mozart （莫扎特）是已去世的音乐家，故应使用过去时。4. 填rai

11、ns。在条件状语从句中，要用一般现在时表示将来发生的事情。5. 填was.driving。 表示过去某一时刻发生的动作要用过去进行时。6. 填had taught。句中有by the time Mr. Smith left school，主语的谓语应用过去完成时。7. 填will have finished。 句中有by this time tomorrow，主语的谓语应用将来完成时。三 动词的被动语态1. 各个时态的被动语态时态过去将来时将来完成时主动doam/is/are doingwas/were doingwillwould dohas/have donehave been doing被动am/is/are doneam/is/are being donewere donewere being donewill be donewould be donehave been donehad been donewill have been done1. The construction of the library_ before the end of next month.A. must have completed B. must have been completedC. must be completed D. must complete 2.