《专四英语语法考点串讲及真题》由会员分享，可在线阅读，更多相关《专四英语语法考点串讲及真题（32页珍藏版）》请在金锄头文库上搜索。
1、-语法回忆篇：专四语法考点虚拟语气、情态动词、非谓语动词、复合句、倒装、小语法省略，时态，反义疑问句，代词，强调句，主谓一致，冠词，形容词及副词、as的特殊用法。专四英语语法考点串讲之一 虚拟语气一般说来，有以下几种考点需要考生注意(十考点及两备考点考点1. 与现在事实相反从句谓语动词用did(be用were)，主句谓语动词would(should,could,might)+do；考点2. 与过去事实相反从句谓语动词用had done，主句谓语动词用 would(should,could,might)+ have done；例如：43.I _the party much more if the
2、re hadnt been quite such a crowd of people there.A. would enjoy B. will have enjoyedC. would have enjoyed D. will be enjoying49.All of us would have enjoyed the party much more if there _ quite such a crowd of people there. A. werent B. hasnt been C. hadnt been D. wouldnt考点3.与将来事实相反，从句谓语动词用：did(shou
3、ld+do或were + to do)，主句谓语动词用：would(should,could,might)+do。例如： 43. If your car _ any attention during the first 12 months, take it to an authorized dealer.(08年 A. shall need C. would need B. should need D. will need考点4. 时态的穿插现象，也就是主句与从句的动作发生在不同的时间段例如：If you had gone to see the doctor，you would be all
4、right now.你要是早去看病,你现在就没事了。考点5.虚拟条件句if可以省略，但从句的语序要用到装，即将were,had或 should移至主语的前面形成倒装，但否认词not不前移。 例如：65._, he would not have recovered so quickly.05年 A.Hadnt he been taken good care of B.Had he not been taken good care of C.Had not he been taken good care of D.Had he been not taken good care of考点6. ins
5、ist(一个坚持；order mand(两道命令；suggest， advise, propose三条建议；ask, require, request, demand(四点要求 及相应的名词的从句，谓语要使用：should+动词原形或动词原形例如：58. It was remended that passengers _ smoke during the flight.(04年) A. not B. need not C. could not D. would not 考点7.It is +advisable, essential important, imperative, incredib
6、le,等等相关的从句，谓语要使用：should+动词原形或动词原形例如：46.It is imperative that students _ their term papers on time.04年 A. hand in B. would hand in C. have to hand in D. handed in 考点8.it is high(about) time that的构造中，从句使用一般过去式例如:54 Its high time we _ cutting down the rainforests.06年A stopped B had to stop C shall stop
7、 D stop 考点9.much as尽管，虽然，引导让步状语从句，从句中用would have done表示假设，可以是说话人的语气变得十分委婉，真诚。例如：52. Much as _, I couldnt lend him the money because I simply didnt have that much spare cash.99年A.I would have liked to B.I would like to have C.I should have to like D.I should have liked to考点10. if only表示要是就好了相当 与wish,
8、 as if/as though 的用法。与现在事实相反：动词过去式与过去事实相反: had + done与将来事实相反： could/would + do例如：52. If only I _play the guitar as well as you! 06 年 A would B could C should D might备考1. would rather或would sooner后跟宾语从句，从句中使用一般过去式或过去完成式分别表示对现在或过去的虚拟，表示宁愿*人作*事例如： The manager would rather his daughter _ in the same off
9、ice now. A.had not worked B.not to work C.does not work D.did not work 备考2.用于lest,for fear that引导的状语从句。在lest, for fear that等引导的状语从句中，通常用(should +)原形动词这一虚拟语气形式 例如：The mad man was put in the soft-padded cell lest he _ himself. A.injure B.had injured C.injured D.would injure 专四语法考点串讲之二 情态动词考试中，情态动词局部重点
10、测试以下容：1情态动词+行为动词完成式 2*些情态动词的特殊用法1. must have v-edmust have v-ed 表示推测过去*事一定发生了。其否认形式为：cant / couldnt have v-ed, 表示过去不可能发生*事。例如：Since the ditch is full of water, it must have rained last night.2. could have v-ed 表示推测过去*动作很可能发生了3. may / might have v-ed 表示推测过去*事也许发生了.may 比 might 表示的可能性在说话人看来稍大些。 4.ought
11、 to / should have v-ed 和 ought not to / shouldnt have v-ed 用于对已发生的情况表示责备、不满，分别表示本应该和本不应该表示应完成而未完成的动作用于完成时中的否认句，表示不应完成但已做的动作5.neednt have v-ed 表示过去做了*事，但没有做的必要， 意为本没必要。例如：You neednt have waken me up; I dont have to go to work today.注意：did not need to do 动作并没发生 例：I didnt need to get up early,so I got
12、up until 9 a.m.*特殊用法(1) cant表示不可能， may not 表示不可以， mustnt(must not) 表示不许可 制止，neednt (need not) 表示不必，dare not 动词原形 表示不敢 (2) must表推测 的否认现在式用cant ,过去式用couldnt(3)May I / we ？这一类疑问句的肯定答复为Yes, please.或Certainly；否认答复为Please dont.或No, you mustnt. 例如：May we leave now No, you mustnt. You havent finished your h
13、ome work yet. (4) need I / we ？这一类疑问句的肯定答复为Yes, we must; 否认答复为neednt (5)在答复must引起的问题时，如果是否认的答复，不能用mustnt，而要用neednt或dont have to(6)May/might as well maybut.(表转折)(7) I wish to go home with you, may I(8) Do help yourself to have fruit, wont you/ will you 表示一种委婉的请求*情态动词短语的使用would like to dowould rather
14、dowould rather + 从句would prefer to do.had better do.*情态动词: will愿意, shall将, must必须, can, may, would, should(应该), might, could, ought to, used to过去常常, need需要, dare竟敢，have to不得不*dare, need 也可作一般行为动词*情态动词一般用法的否认：mustnt 不准, 制止，不要 cant(couldnt) 不会；不能；may (might) not 不可以; neednt 没必要 ( = dont have to )used notusednt to或didnt use to 过去不dare not 不敢*情态动词推测用法Must 一定，肯定 cant (
