偶看新闻雷鸟电视 垃圾:四级语法精要
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1. 时态
1)现在完成进行时态 (have/has been + -ing 分词构成): 动作或状态从过去某时开始,继续到现 在,可能继续下去,也可能刚刚结束.
I’ve been writing letters for an hour.
I’ve been sitting in the garden.
2)过去完成进行时(由had been + ing分词构成): 过去某个时刻以前一直在进行的动作
I’d been working for some time when he called.
We had been waiting for her for two hours by the time she came.
3)将来完成进行时: 将来某个时刻以前一直在进行的动作.
By next summer, he will have been working here for twenty years.
In another month’s time she’ll have been studying here for three years.
4)将来完成时(由shall/will have + 过去分词构成): 将来某时会业已发生的事.
I shall have finished this on
They’ll have hit the year’s target by the end of October.
2. 语态
1) 可以有两种被动结构的类型,例如:
He was said to be jealous of her success.
It was said that he was jealous of her success.
能同时适用于上述两个句型的主动词通常都是表示“估计”,“相信”等意义的动词,常见的有
assume,believe,expect,fear,feel,know,presume,report,say,suppose,understand等.
It is supposed that the ship has been sunk.
The ship is supposed to have been sunk.
担当be supposed to 与不定式的一般形式搭配时往往表示不同的意义.例如:
Why are you driving so fast in this area? You are supposed to know the speed to know
the speed limit. (你应该晓得速度限制)
2) 双宾语及宾补结构的被动语态
a) 双宾语结构的被动语态: 双宾语结构变为被动语态时,可以把主动结构中的一个宾语变为主语,
另一个宾语仍然保留在谓语后面,但多数是把间接宾语变为主语.
He was asked a number of questions at the press conference.
Two days were allowed them for making the necessary preparations.
b) 宾补结构的被动语态:
She was called Big Sister by everybody.
Then he was made a squad leader.
He was considered quite qualified for the job.
The room was always kept clean and tidy.
3. 短语动词
1) Vi + adv
The plane took off two hours late.
2) Vi + prep
They looked round the Cathedral.
3) Vi + prep (有被动语态)
She’s looking after her sister’s children.
The children were always well looked after.
4) Vi + adv + prep
I began to look forward to their visits.
5) Vt + O + adv
Some women choose to stay at home and bring up their children.
The children were brought up by their mother.
They took him on.
6) Vt + adv + O (无被动语态)
I am trying to give up smoking.
7) Vt + O + prep
We talked Donald into agreement.
4. 省略
1) 在以as, than, when, if, unless等引导的从句中的省略: 在有些状语从句中,如果谓语包含
有动词be,主语又和主句的主语一致a),或者主语是it b),就常常可以把从句中的主语和谓语的一 部分(特别是动词be)省略掉.
a) Look out for cars when crossing the street.
When taken according to the directions, the drug has no side effects.
While there he joined in voluntary labour on a project.
Although not yet six months old, she was able to walk without support.
If not well managed, irrigation can be harmful.
Though reduced in numbers, they gained in fighting capacity.
This viewpoint, however understandable, is wrong.
Enemies, on
She hurriedly left the room as though/if angry.
She worked extremely hard though still rather poor in health.
Fill in the application as instructed.
Whenever known, such facts should be reported.
The documents will be returned as soon as signed.
He said that no acrobat could ever perform those daring feats unless trained very
young.
On
b) If necessary I’ll have the letter duplicated.
Fill in the blanks with articles where(ver) necessary.
If possible, I should like to have two copies of it.
As scheduled, they met on January 20 at the Chinese Embassy.
2） 在以than a) 或 as b) 引起的从句中,常会有一些成分省略.
a) He told me not to use more material than (it is) necessary.
We should think more of the collective than of ourselves.
b) They worked with as much enthusiasm as young people (did).
He is now a vice-manager, but still often works in the kitchen as before.
Their training is free, as is all education.
We will, as always, stand on your side.
3） 错误的省略
His life is as fully committed to books as anyone I know.
While standing there in her nightgown, two bullets struck the wall beside her.
5. 一致
1) 如果主语是单数,尽管后面跟有with, together with, as well as, as much as, no less
than, more than等引导的短语,谓语动词仍旧用单数形式.
Terry, along with her friend, goes skating every Saturday.
An expert, together with some assistants, was sent to help in this work.
The captain, as well as the coaches, was disappointed in the team.
2) 代词作主语时的一致
a) each, either, neither和由some, any, no, every构成的复合代词,都作单数看待.
Each of us has something to say.
Is everybody ready?
Somebody is using the phone.
Neither of us has gone through regular training.
Has either of them told you?
b) some, few, both, many 等作复数
c) some 可后接复数,也可接单数,表示某一.
none作复数看待时较多,但也有时作单数看待,主要看说话人脑中联系想到的是复数还是单数概
念, 但none 在代表不可数的东西时总是看作单数:
None of the books are easy enough for us
None of us seem to have thought of it.
None (= not a single on
None (= nobody) has felt it more keenly than she did.
None of this worries me.
all 和most 可后接复数,也可接不可数名词 (all of the…, most of the …), 动词用单数.
3) 由and 或 both… and 连接名词词组时, 后用复数; 由not on
neither…nor或 or 连接的并列主语, 谓语通常和最邻近的主语一致.
Not on
My sister or my brother is likely to be at home.
Either you or Mr Yang is to do the work.
Neither my wife nor I myself am able to persuade my daughter to change her mind.
如果一个句子是由there 或here引导, 而主语又不止一个, 谓语通常也和最邻近的那个主语一 致.
There was carved in the board a dragon and a phoenix.
Here is a pen, a few envelopes and some paper for you.
4) people, police, cattle, poultry (家禽), militia (民兵) 等通常都用作复数.
Cattle are grazing on the pasture.
The police are looking for him.
有些集体名词有时作单数看待, 有时作复数看待, 主要根据意思来决定.
His family isn’t very large.
His family are all music lovers.
The committee meets twice a month.
The committee are divided in opinion.
The audience was enormous.
The audience were greatly moved at the words.
有些名词单复数同形, 可根据意思决定谓语动词的数:
This new series is beginning next month.
These new series are beginning next month.
This species is now extinct.
These species are now extinct.
5) 表示时间, 重量, 长度, 价值等的名词, 尽管仍是复数形式, 如果作整体看待, 动词也可用单
数形式 (当然用复数动词也是可以的):
Three weeks was allowed for making the necessary preparations.
On
6) 其他问题
a) 书名, 国家名用单数:
Tales from Shakespeare is a book by Charles Lamb.
b) 学科名, 如mathematics, economics用单数.
c) many a 或more than on
Many a person has had that kind of experience.
More than on
a number of 后接复数, the number of后接单数:
A number of books have been published on the subject.
The number of books published on the subject is simply amazing.
d) on
的单复数形式在一般情况下有两形式，一是根据先行词采用复数形式：
Joan is on
当on
He is the on
一：时态：所谓的"时态"，就是时间+状态。谓语动词的时态见下表：
1．主动形式
2．被动形式
cet-4 常考的三种时态：过去完成时；将来完成时；（现在/过去）完成进行时。
时间状语从句当中的时态：
一般过去时 所有的过去
用 一般现在时 表示 现在和将来
现在完成时 现在完成和将来完成
一．非谓语动词
一．不定式：
一）不定式的常考形式：
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： 表示与谓语动词同步发生
完成形式：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：表示发生在谓语动词之前
二）不定式常考的考点：
1）不定式做定语----将要发生
2）不定式做状语----目的
3）不定式充当名词功能---to see is to believe.
三)不定式的省略
1)感官动词 see, watch, observe, notice, look at, hear, listen to, smell, taste, feel
+ do 表示动作的完整性，真实性；
+ doing 表示动作的连续性，进行性
i saw him work in the garden yesterday.
昨天我看见他在花园里干活了。(强调"我看见了"这个事实)
i saw him working in the garden yesterday.
昨天我见他正在花园里干活。（强调"我见他正干活"这个动作）
感官动词后面接形容词而不是副词：the cake tastes good; it feels comfortable.
2) 使役动词 have bid make let 等词后不定式要省略但同1)一样被动以后要还原to
i ‘d like to have john do it.
i have my package weighed.
paul doesn’t have to be made to learn.
3) 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) 有的时候to后面要接-ing形式
accustom (on
三、need/want 后的-ing形式具有被动的意思。其中，want不太常用。
he needs (a lot of) encouraging.
二. 动名词： 具有动作性特征的名词
1)是名词 seeing is believing
2)具有动词性特征可以带宾语 starving troops is necessary.
一)动名词的形式:
一般形式：i don't like you smoking.
完成形式：i regret not having taken your advice.
被动形式：this question is far from being settled.
二) 动名词常考的点
1)动名词做主语谓语动词为单数
2)在动名词和不定式中,做为介词的宾语是动名词
3)动名词的否定直接在其前加否定词,通过代词的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...
另外还有一些接-ing形式的常用说法：
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后面用不定式和-ing形式，意义截然不容。
i remembered to post the letters. (指未来/过去未来的动作)
i remembered posting/having posting the letters (我记得这个动作)
forgot与remember的用法类似。
i regret to inform you that… 我很遗憾地通知你…
i regretted having left the firm after twenty years. 为了"二十年前的离开"而遗憾。
try to 努力 you really must try to overcome your shyness.
try –ing 试验 try practicing five hours a day.
i mean to go, but my father would not allow me to. [打算、想]我想去，但我父亲不让我去。
to raise wage means increasing purchasing power. [意味着]赠加工资意味着增加购买力。
prefer的用法：
我宁愿在这里等。
i prefer to wait here. （所以啊，你不介意的话，我就等下去。）
i prefer waiting here.（我正在这里等，我就喜欢这么做。）
i prefer swimming to cycling. （这个句子里面就不能用不定式了。）
3 分词：
现在分词主动进行,过去分词被动状态
现在分词的形式:
1)一般式: do you see the man talking to the dean（主任）? (与谓语动词同步发生)
2)完成形式：not having made adequate preparations, they failed. (发生谓语动词之前)
3)完成被动形式：having been adapted, the script seems perfect.( 发生谓语动词之前且表示被动)
过去分词
过去分词表示被动：fight no battle unprepared.
2)过去分词的进行形式：you'll find the topic being discussed everywhere. (强调正在被做)
这三种非谓语动词，都可以构成复合结构，非谓语动词所修饰的成分是这些非谓语动词的逻辑主语。他们之间的一致关系——主动还是被动，往往就是考点。独立主格结构中，要注意的是分词与他前面的逻辑主语之间的主动被动的关系。
二：虚拟三：虚拟语气
情态动词所表达的可能性程度：must/can't should/shouldn't might/may (not)
另外两个"类情态词的形式："need/needn't; have to/don't have to
最自然的虚拟状态：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：一般、进行、完成、完成进行。
这时"虚拟语气"的产生往往是因为我们要表达"本来应该……"（而现在却还没有……）
（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)! (完成)
我应该多多练习！（言下之意，现在我练习得不多。）
i shouldn't dream away my time too much! (完成的否定)
(actually i did dream away my time too much!)
it shouldn't have been leaking for such a long time! (完成进行)
i may/might/could have finished! (完成)
一些常见的句型中，就会出现这种虚拟语气，而处于从句之中，should 常常被省略掉
suggest, advise, propose, recommend, plan;
demand, order, direct, arrange, command, decide;
require, request;
think, expect, believe, insist, suspect.
由于他们的含义中包含"建议，假设，应该"这类的含义，所以，由他们引起的从句中，就会包含有should+原型时态构成的虚拟语气。
这些动词（以及他们的名次形式，分词形式）引起的从句还有其他的变形：
主语从句，表语从句，同位语从句
it's suggested that…
my suggestion is that…
the on
the on
一些形容词引起的表语从句中，也会有同样的情况
imp
it's natural ; strange; incredible that
a pity; a shame; no wonder
由lest, for fear that, in case 引起的从句中多使用should
表达与事实相反
1. 与现在相反：使用[过去时]：
i wish i were not here! (一般现在一般过去)
suppose we were not here.
he loved me as if i were his own son. (一般现在一般过去)
hope i weren't always losing things! (现在进行过去进行)
if on
what if i hadn't been waiting right here! (现在完成进行过去完成进行)
常考句型：it's (high) time (that)…; would rather (that)…
这两个从句，只能表达对现在的看法，所以，从句中只有一般过去时。
2. 与过去相反：过去完成时；
how nice it is if i had past the test!
how nice it is if i had slept a little more this morning!
3. 与将来相反？将来的事情没有发生，所以只能推测。
if it rains tomorrow, we'll have to stay on
不过，由于可以用be to表示将来；所以，虚拟语气中经常出现were to；也是cet-4的常考语法点。
虚拟条件句
if 部分，做一个与事实相反的假设（所以只有一般过去和过去完成）；
主句部分，这是表示基于这个假设的推测，一般使用情态动词would，少数情况下使用could/might/may。
注意：两个部分之间，是有逻辑关系，而在两部分的谓语动词时态上，没有必然的联系。
注意，虚拟条件句中的if可以省略，造成were/had提前，产生倒装。
隐含的非真实条件
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，原因状语从句也会出现虚拟语气。
由in order that, so that引起的从句，肯定的时候可以使用may/might; can/could; 否定的时候，多用shouldn't;
whoever, whatever, no matter what引起的从句中，多用may+
情态动词的基本用法及其区别
最近几年高考试题中常常借助语境来考查情态动词的基本用法及其区别，因此在平时学习时准确理解和掌握情态动词的基本用法十分重要。情态动词的用法复杂多变，在高考试题中，命题者常常利用语境和句子之间意义上的细微差别来考查学生对情态动词的理解和掌握。对于情态动词，除了要求考生能够准确掌握它们的基本用法外，还要充分利用高考试题所设置的语境来分析句子之间所体现的特殊关系。下面就近几年来高考试题中出现的情态动词的考点进行归纳分析，以便同学们复习掌握。
一、用“情态动词＋have ＋done”结构表示对过去动作的推测，高考试题中常用过去时态或过去的时间状语给以暗示。情态动词的这一用法可以用 “对立统一”来概括。
1．当试题的前句和后句在动作和意义上相互补充说明，且整个句意在动作和时间上是一个整体时，我们可用“统一”关系来解决这样的试题。常见的结构有：
must have done：
表示对过去动作的肯定推测，常译作“一定做了……”，只能用于肯定句中。其否定形式为can’t／couldn’t have done
疑问式为can／could...have done﹖。
could ／might have done：表示对过去发生的动作的可能性推测，常译作“可能做了……”。如：
1) my sister met him at the grand theater yesterday afternoon, so he
＿＿＿＿＿ your lecture．
a． couldn’t have attended
b． needn’t have attended
c． mustn’t have attended
d． shouldn’t have attended 本题选a。
2) jack ＿＿＿＿ yet, otherwise he would have telephoned me．
a． mustn’t have arrived
b． shouldn’t have arrived
c． can’t have arrived
d． need not have arrived （c）
2．当试题的前后句在动作和意义上构成转折关系时，常借助“but, however, instead”等词来表示过去的动作与客观事实不符，这时我们就可以用“对立”关系来解决这样的试题。这种结构常见的有：
should have done ／ ought to have done：表示过去本应该做某事而实际上没有做。
should not have done ／ ought not to have done：表示过去本不应该做某事但事实上却做了。
need have done：表示过去本来有必要去做某事，但事实上没有做。
need not have done：表示过去本来没有必要做某事，但事实上却做了。如：
3) i was really anxious about you． you ＿＿＿＿＿ home without a word．
(nmet2001)
a． mustn’t leave b． shouldn’t have left
c． couldn’t have left d． needn’t leave
“本不应该离家出走却走了”，故本题选b。
4) i told sally how to get here, but perhaps i ＿＿＿＿＿ for her．
(nmet’94)
a． had to write it out
b． must have written it out
c． should have written it out
d． ought to write it out
由句中的连词but可知前后句之间是对立关系，分析题意可知本题应选c。
二、考查情态动词基本用法之间的比较和辨析。最近几年高考试题中常借助具体的语境来考查考生对那些最常见的情态动词的基本用法的理解和掌握，因此在做这样的试题时应认真分析语境中所含的实际意义，并结合情态动词的基本含义和用法做出正确的选择。
5) —is john coming by train﹖
—he should, but he ＿＿＿＿＿＿ not． he likes driving his car．
a． must b． can c． need d． may
mustn’t 表示“禁止、不准”；cannot 表示“不可能”；need not 表示“不必要”；may not
表示“可能不”。分析语境可知本题应选d。
6) —i hear you’ve got a set of valuable australian coins． ＿＿＿＿＿＿ i have a look﹖
—yes, certainly．
a． do b． may c． shall d． should
分析语境可知这是在征求对方的许可，may表示“允许、可以”，语气比较委婉 shall常用于第一、三人称作主语的疑问句中,表示征求对方意见和指示，如果此空用shall，则意为“要（我）看一下吗？”，不符合上下文意思。故本题选b。
7) mr bush is on time for everything． how ＿＿＿＿ it be that he was late for the opening ceremony﹖
a． can b． should c． may d． must
must be 表示肯定的猜测，只能用于肯定句中，由题意可知本题应选a。
8) —are you coming to jeff’s party﹖
—i’m not sure． i ＿＿＿＿ go to the concert instead．
a． must b． would c． should d． might
由题意和下句中的 “i’m not sure”
可知这段对话中存在一种可能性推测，might可以用来表示一种比较委婉的可能性判断，故本题选d。又如： i should have been there, but i ＿＿＿＿＿ not find the time．
a． would b． could c． might d． should
分析题意可知第二个分句表示过去的某种能力；c 项只表示语气上的可能性，与题意不符。故本题选b。
9) johnny, you ＿＿＿＿ play with the knife, you ＿＿＿＿ hurt yourself．
a． won’t; can’t b． mustn’t; may
c． shouldn’t; must d． can’t; shouldn’t
mustn’t 表示“不可以；禁止”，分析题意可知第二个空表示某种可能性，故本题选b。
10) —will you stay for lunch﹖
—sorry, ＿＿＿＿＿＿． my brother is coming to see me．
a． i mustn’t b． i can’t
c． i needn’t d． i won’t
分析题意可知因为“我弟弟要来看我”，所以“不能留下”，因此对别人的邀请或要求应给予礼貌的拒绝。a 项表示“禁止”；c项表示“不必要”；而d项表示“不会”，均不符合题意。故本题选b。又如：
—could i borrow your dictionary﹖
—yes, of course you ＿＿＿＿＿．
a． might b． will c． can d． should (c)
11)—when can i come for the photos﹖ i need them tomorrow afternoon．
—they ＿＿＿＿＿ be ready by 1200．
a． can b． should c． might d． need
该题考查情态动词should的基本含义，分析句意可知本题应选b。又如：
12) the fire spread through the hotel very quickly but everyone ＿＿＿＿ get out．
a． had to b． would c． could d． was able to
该题考查了could和be able to的区别，二者都可表示过去时间的能力，但如果表示过去成功地做了某事只能使用was ／ were able to do，故本题选d。
13) —shall i tell john about it ﹖
—no, you ＿＿＿＿＿． i’ve told him already．
a． needn’t b． wouldn’t c． mustn’t d． shouldn’t
情态动词shall在试题中表示征询对方意见或请求指示。答句暗示 “没有必要了”，故本题选a
三、一致关系
一)主谓一致
1． 主谓一致（与插入语无关） 1主谓的分隔原则：主谓之间可以用定语从句或者省略的定语从句分隔。 2定语从句中的主谓一致： 3随前一致： n. + together with n2 as well as including along with with / of accompanied with / by 4就近原则：n1 or n2 +v（就近原则） either n1 or n2 5可数n1 and 可数n2+v(pl) 不可数n1 and 不可数n2+v(pl) 例外：war and peace is… war and peace是一个整体 但是如果主语表示的是同一个概念，同一人，同一事的时候，谓语动词用单数，这种结构的特征是and连接的两个词只有一个冠词。
the iron and steel industry is very imp
the head master and mathematical teacher is coming.
the head master and the mathematical teacher are coming.
类似的还有：law and order bread and butter black and white to love and to be loved is … a lawyer and a teacher are… a lawyer and teacher is … 6随后原则：not a but b / not on
the good is always attractive. 10 to do/doing/主从+vs *more than on
二)、倒装
1 全部倒装
是只将句子中的谓语动词全部置于主语之前。此结构通常只用与一般现在时和一般过去时。常见的结构有：up went the plane = the plane went up.
1) here, there, now, then, thus等副词置于句首, 谓语动词常用be, come, go, lie, run。
2) 表示运动方向的副词(back, down, off, up)或地点状语置于句首，谓语表示运动的动词。
注意：1) 上述全部倒装的句型结构的主语必须是名词，如果主语是人称代词则不能倒装。here he comes. away they went. 2) 谓语动词是be的时候，不能倒装。 here it is. here you are.
常用的引导词
时间状语从句：while; when; before; whenever; as; after; till; until; since; on
地点状语从句：where; wherever
原因状语从句：because; since; as; seeing that; considering that; now that; in that; for fear that; lest; owing to the fact that; because of the fact that; due to the fact that…
方式状语从句：as; as if; as though; how; save that…
比较状语从句：as; than; as… as; not so… as; hardly… than;
结果状语从句：so that; so… that; such… that; so as to…
条件状语从句：if; unless; in case; so long as; so far as; provided/providing/that; supposing; granted/granting that…; giving that….
让步状语从句：though; although; even if; even though; whether; as; however; no matter (what, how, when); for all that; in spite of the fact that; granted that; regardless of the fact that…
目的状语从句：that; so that; in order that; lest; for the fear that; in case…
定语从句:
which 引导的定语从句结构
1）which是关系代词，which后面应该加缺主语或者宾语的句子，
在这个句子中，which要作成分，作主语或者宾语
2）in which+完整的句子
which在定语从句中作in的宾语，所以不能作后面句子的主语
3）名词+of which+谓语动词
of which来修饰名词，名词在定语从句中作主语，所以后面直接跟谓语动词
i have five books three of which are borrowed from mary.
4）介词+ which +to do 其功能相当于定语从句。
the key with which to open the door is lost.
5）定语从句的省略结构：
1． 如果that / which在定从中作 宾语，可以省略. sub+vt+n+(which / that)+sub+vt →s+vt+n+s+v s+vt+n1+n2+vt *当做题时，若发现两个名词在一起，但是似乎连不上，则一定省略that / which，则动词为vt，做谓语。 6）定从的特殊省略
the way (in which) + 句子 the reason (why that)+句子 均为完整句 the time (that / when)+句子 i do remember the first time (that省) i ever heard the sweetest voice in the world. by the time省that+句子，句子。 7）定从的主系省略（主+系可同时省） 即：which be , who be , that be可同时省
状语从句省略结构
这种省略从句主语的方式理论上需要满足以下两个条件：
第一、特定的状语从句引导词：although though even though when while if as
第二、从句主语和主句主语必须保持一致；
第三、从句的谓语必须是be动词，主语和be动词同进同出
一、语法题主要有以下考点
1、虚拟语气 强调说话人的主观愿望和假想情况。考生应着重复习能引起虚拟语气的某些介词、介词短语和连词(如lest，in case，otherwise等)；一部分表示建议、主张、命令、紧要等概念的词语，由于本身隐含说话人的主观愿望，其后的主语从句、宾语从句。同位语从句往往采用“(should)+动词原形”；虚拟倒装句；在would rather，wish，as if，it’time that等句型中使用适当形式表达主观愿望：混合虚拟句。
2、谓一致 这类考题灵活性大，需要根据实际情况判定谓语动词的单复数形式。一部分具有生命意义的集合名词作主语时谓语动词多采用复数形式，如people，poultry，militia等；用and连接的成分表单一概念时谓语动词用单数；就近原则；主语中含有某些连词(如as well as，besides，in addition to等)时，谓语动词的数同第一个主语保持一致。
3、倒装结构 表示强调或突出，分为全部倒装和部分倒装。哪些否定词(组)、介词短语能引起倒装句，部分倒装和全部倒装有何区别，as在倒装结构中的用法及意义等等，都是考生应当重视的地方。
4非谓语动词 5独立主格 6名词性从句 主语同位语 宾语从句