2022年四级语法知识点总结.doc

四级语法知识点总结

一：时态：所谓"时态"，就是时间+状态。谓语动词时态见下表：
1．积极形式

过去
目前
将来
过去将来
一般
did
do
will/shall do
should/would do
进行
was/were doing
am/is/are doing
will/shall be doing
/
完毕
had done
have/has done
will/shall have done
should/would have done用于虚拟语调
完毕进行
had been doing
have/has been doing
/
/

2．被动形式

过去
目前
将来
过去将来
一般
was/were given
am/is/are given
will/shall be given
should/would be given
进行
was/were being given
am/is/are being given
/
/
完毕
had been given
have/has been given
will/shall have been given
should/would have been given
完毕进行
/
/
/

v CET-4 常考三种时态：过去完毕时；将来完毕时；（目前/过去）完毕进行时。
v 时间状语从句当中时态：
一般过去时 所有过去
用 一般目前时 表达 目前和将来
目前完毕时 目前完毕和将来完毕

二：非谓语动词

1．不定式：
一）不定式常考形式：
1) 一般形式：He decided to work harder in order to catch up with the others.
被动形式: He preferred to be assigned some heavier work to do.
语法功能： 表达和谓语动词同步发生
2) 完毕形式：He pretended not to have seen me.
被动形式：The book is said to have been translated into many languages.
语法功能：表达发生在谓语动词之前
二）不定式常考考点：
1）不定式做定语----将要发生
2）不定式做状语----目旳
3）不定式充当名词功能---To see is to believe.
三)不定式省略
感官动词 see, watch, observe, notice, look at, hear, listen to, smell, taste, feel
+ do　 表达动作完整性，真实性；
+ doing 表达动作持续性，进行性
　I saw him work in the garden yesterday.
　 昨天我看见她在花园里干活了。(强调"我看见了"这个事实)
　 I saw him working in the garden yesterday.
　 昨天我见她正在花园里干活。（强调"我见她正干活"这个动作）
v 感官动词背面接形容词而不是副词：The cake tastes good; It feels comfortable.
使役动词 have bid make let 等词后不定式要省略但同1)同样被动后来要还原to
I ‘d like to have John do it.
I have my package weighed.
Paul doesn’t have to be made to learn.
help help sb do help sb to do help do help to do
四)有些动词后只跟不定式如：
want，wish，hope，manage，promise，refuse，pretend，plan， offer，decide，agree，expect allow sb to do, cause sb to do , permit sb to do, enable sb to do
force sb to do. be more likely to do love to do warn sb to do be able to do
be ambitious to do. begin to do . start to do

五) 有时候to背面要接-ing形式
accustom (oneself) to; be accustomed to; face up to; in addition to; look forward to; object to; be reduced to; resign oneself to; be resigned to; resort to; sink to; be used to; be alternative to; be close/closeness to; be dedication/dedicated to; be opposition/opposed to; be similarity/similar to.

2. 动名词： 具有动作性特性名词
1)是名词 seeing is believing
2)具有动词性特性可以带宾语 starving troops is necessary.
一)动名词形式:
一般形式：I don't like you smoking.
完毕形式：I regret not having taken your advice.
被动形式：This question is far from being settled.
二) 动名词常考点
1)动名词做主语谓语动词为单数
2)在动名词和不定式中,做为介词宾语是动名词
3)动名词否认直接在其前加否认词,通过代词宾格或所有格形式给出逻辑主语.
I would appreciate_______ back this afternoon．
A．you to call B．you call C．you calling D．you're calling（Key：C your calling 也对）
I regret not having taken your advice.
4)有些词后只能接动名词
admit; appreciate; avoid; celebrate; consider; contemplate; defer; delay; deny; detest; discontinue; dislike; dispute; enjoy; it entails; escape; excuse; explain; fancy; feel like; finish; forgive; can't help; hinder; imagine; it involves; keep; it means; mention; mind; miss; it necessitates; pardon; postpone; practice; prevent; recall; report; resent; resist; risk; suggest; understand...
此外尚有部分接-ing形式常用说法：
it's no good; it's no/little/hardly any/ use; it's not/hardly/scarcely use; it's worthwhile; spend money/time; there's no; there's no point in; there's nothing worse than; what's the use/point...

5)有些词后加不定式和动名词均可
remember, forget, try, stop, go on, cease, mean背面用不定式和-ing形式，意义截然不容。
I remembered to post the letters. (指将来/过去将来动作)
I remembered posting/having posting the letters (我记得这个动作)
forgot和remember使用措施类似。
I regret to inform you that… 我很遗憾地告知你…
I regretted having left the firm after twenty years. 为了"二十年前离开"而遗憾。
try to 努力 You really must try to overcome your shyness.
try –ing 实验 Try practicing five hours a day.
I mean to go, but my father would not allow me to. [筹划、想]我想去，但我爸爸不让我去。
To raise wage means increasing purchasing power. [意味着]赠加工资意味着增长购买力。
prefer使用措施：
我宁愿在这里等。
I prefer to wait here. （因此啊，你不介意话，我就等下去。）
I prefer waiting here.（我正在这里等，我就爱慕这样做。）
I prefer swimming to cycling. （这个句子里面就不能用不定式了。）

3 分词：
目前分词积极进行,过去分词被动状态
目前分词形式:
1)一般式: Do you see the man talking to the dean（主任）? (和谓语动词同步发生)
2)完毕形式：Not having made adequate preparations, they failed. (发生谓语动词之前)
3)完毕被动形式：Having been adapted, the script seems perfect.( 发生谓语动词之前且表达被动)
过去分词
1) 过去分词表达被动：Fight no battle unprepared.
2)过去分词进行形式：You'll find the topic being discussed everywhere. (强调正在被做)
这三种非谓语动词，所有可以构成复合构造，非谓语动词所修饰成分是这些非谓语动词逻辑主语。她们之间一致关系——积极还是被动，往往就是考点。独立主格构造中，要注意是分词和她前面逻辑主语之间积极被动关系。

三：虚拟语调
情态动词所示也许性限度：must/can't à should/shouldn't à might/may (not)
此外两个"类情态词形式："need/needn't; have to/don't have to
v 最自然虚拟状态：由should/would+原型时态（不含时间只含状态）
本质上是过去将来时：即，时间固定在过去将来，状态不同样：一般、进行、完毕、完毕进行。
这时"虚拟语调"产生往往是由于我们要表达"本来应当……"（而目前却还没有……）
（本来可以……，本来能……）

I should go! (… but I'm still here!) (一般)
I should be working now! (进行)
I should have practiced more (than I did)! (完毕)
我应当多多练习！（言下之意，目前我练习得不多。）
I shouldn't dream away my time too much! (完毕否认)
(actually I did dream away my time too much!)
It shouldn't have been leaking for such a long time! (完毕进行)
I may/might/could have finished! (完毕)
部分常用句型中，就会浮现这种虚拟语调，而处在从句之中，should 常常被省略掉
o suggest, advise, propose, recommend, plan;
o demand, order, direct, arrange, command, decide;
o require, request;
o think, expect, believe, insist, suspect.
由于她们含义中涉及"建议，假设，应当"此类含义，因此，由她们引起从句中，就会包具有should+原型时态构成虚拟语调。
这些动词（和她们名次形式，分词形式）引起从句尚有其他变形：
主语从句，表语从句，同位语从句
It's suggested that…
My suggestion is that…
The only suggestion that...
The only suggestion I can give you now is that…
部分形容词引刊登语从句中，也会有同样状况
important; necessary; essential
It's natural ; strange; incredible that
a pity; a shame; no wonder
Ø 由lest, for fear that, in case 引起从句中多使用should
v 表达和事实相反
1. 和目前相反：使用[过去时]：
I wish I were not here! (一般目前à一般过去)
Suppose we were not here.
He loved me as if I were his own son. (一般目前à一般过去)
Hope I weren't always losing things! (目迈进行à过去进行)
If only/If I hadn't been there! (目前完毕à过去完毕)
What if I hadn't been waiting right here! (目前完毕进行à过去完毕进行)
常考句型：It's (high) time (that)…; would rather (that)…
这两个从句，只能表达对目前见解，因此，从句中只有一般过去时。
2. 和过去相反：过去完毕时；
How nice it is if I had past the test!
How nice it is if I had slept a little more this morning!
3. 和将来相反？将来事情没有发生，因此只能推测。
If it rains tomorrow, we'll have to stay one day more.
但是，由于可以用be to表达将来；因此，虚拟语调中常常浮现were to；也是CET-4常考语法点。
v 虚拟条件句
o if 部分，做一种和事实相反假设（因此只有一般过去和过去完毕）；
o 主句部分，这是表达基于这个假设推测，一般使用情态动词would，少数状况下使用could/might/may。
o 注意：两个部分之间，是有逻辑关系，而在两部分谓语动词时态上，没有肯定联系。
v 注意，虚拟条件句中if可以省略，导致were/had提前，产生倒装。
v 隐含非真实条件
What would you do with 50 thousand dollar?
How could I be happy without you?
除了条件状语从句之外，因素状语从句也会浮现虚拟语调。
o 由in order that, so that引起从句，肯定期候可以使用may/might; can/could; 否认期候，多用shouldn't;
o whoever, whatever, no matter what引起从句中，多用may+