大学英语三级语法知识总结汇总.doc

三级语法考点归纳一． 虚拟语气1. if 句中虚拟形式if 引导的非真实条件句(纯粹假设或发生的可能性不大)：条件 从句 主句与现在相反 did （be were) would/ should/ might/ could do与将来相反 did (be were) would/ should/ might/ could do与过去相反 had done would/ should/ might/ could have done例句If we left （leave） now, we should arrive in timeIf they hadn’t gone on vacation, their house wouldn't have been broken (break) into 原形虚拟：a. 表命令、决定、要求、建议等词语之后的that—分句中，用动词原形suggest, demand， advise, propose， order， arrange， insist, command， require, request, desire …… that ＋（should） do例如 He suggested that we should leave early. My suggestion is that we should tell him。

b. It is （was) 形容词/名词that …… （should） do/例如 It is absolutely essential that all the facts be examined first.3 一些句型中的虚拟形式：1. It’s （high， about， the first， etc.) time （that) …动词过去时… 例如 It’s 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. 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 have not had； could not become B. had not had； would not have become C. did not have; could not become D doesn’t have； will not become4. He _______ by that burglar if you _______ to save himA. might have been killed； hadn't come B will be killed； didn’t comeC. may be killed； did’t come D. could be killed； haven’t come5. If it _______for your help， I _______that hard time with so little money.A. were not； would not 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 _______？A will； breaks out B do; will break outC would； were to break out D. will； is to break out7 She wishes she _______ that humiliating thing doesn’t do B didn’t do C haven't done D. hadn't done8. The chairman suggested that the meeting _______ put offA. 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 homeworkA. 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，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表示与过去事实相反的假设译文：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译文：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译文：她真希望自己没有做过那件丢脸的事情.）8虚拟语气用于表示“建议”等意义的动词后译文：主席建议会议延期举行 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虚拟语气用于定语从句It is time （that）.译文：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will do 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 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 moment 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 music4. If it _______ （rain) tomorrow，we’ll have to stay at home.5. How fast _______ he _______ （drive) when 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 rainedso far是“到目前为止"的意思，常和现在完成时搭配使用3. 填wroteMozart (莫扎特)是已去世的音乐家,故应使用过去时。

4 填rains.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一般现在时现在进行时一般过去时过去进行时一般将来时过去将来时现在完成时过去完成时现在完成进行时将来完成时主动doam/is/are doingdidwas/were doingwilldowould dohas/have donehad donehas/have been doingwill have done。