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下面是出国留学网四六级英语频道整理的英语六级语法常考知识点汇总，欢迎阅读。
| 英语六级语法常考知识点汇总 | |
| 英语六级语法常考知识点(一)：主语和谓语 | |
| 英语六级语法常考知识点(二)：语态 | |
| 英语六级语法常考知识点(三)：suggest | |
| 英语六级语法常考知识点(四)：may | |
下面是出国留学网四六级英语频道整理的英语六级语法常考知识点(十二)：though although，欢迎阅读。
一、
1) 表示目的;它的否定式是so as not to do。
Tom kept quiet about the accident so as not to lose his job.
汤姆对事故保持沉默是为了不丢掉他的工作。
Go in quietly so as not to wake the baby.
轻点进去，别惊醒了婴儿。
2) so kind as to ---劳驾
Would you be so kind as to tell me the time?
劳驾，现在几点了。
二、
though, although
注意： 当有though, although时，后面的从句不能有but，但是 though 和yet可连用
Although it‘s raining, they are still working in the field.
虽然在下雨，但他们仍在地里干活。
He is very old, but he still works very hard.
虽然他很老，但仍然努力地工作。
Though the sore be healed, yet a scar may remain.
伤口虽愈合，但伤疤留下了。 (谚语)
典型例题
1) ___she is young, she knows quite a lot.
A. When B. However C. Although D. Unless
答案：C。意为虽然她很年轻，却知道许多。
2) as, though 引导的倒装句
as / though引导的让步从句必须表语或状语提前(形容词、副词、分词、实义动词提前)。
Child as /though he was, he knew what was the right thing to do.
= Though he was a small child, he knew what was the right thing to do.
注意： a. 句首名词不能带任何冠词。
b. 句首是实义动词，其他助动词放在主语后。如果实义动词有宾语和状语，随实义动词一起放在主语之前。
Try hard as he will, he n...
下面是出国留学网四六级英语频道整理的英语六级语法常考知识点(十一)：so，欢迎阅读。
两人对话，乙方对甲方的问话常可用简短回答作出 反应。例如： Do you like it? -- Yes，I do.这同样适用于陈述句的场合： You worry too much.-- No，I don‘t.在后一种情况下，乙方也能"So+do+主语"之类 的结构表示看法。
例如甲方说"我喜欢苹果"，乙方 如果想表示"我也喜欢苹果"，英语可以说：
A：I like apples.
B：So do I.(= I like apples，too。)
这里的so在意义上相当于in the same way，即同样、 也那样，作简短反应表示同样看法时常用之。
就诸如此类的四种结构略作介绍。
1."So+do+主语"结构 在简短反应中表示"我也如此"或"另外一个人也 如此"时，也就是主语不同于上文的主语以及上 文并无可用于构成倒装的动词(即操作词时)， 可用此结构。例如： A：I like playing football. B：So do I./So does my brother./So did my father. 如果上文有可用于构成倒装的动词时，则用相同 的动词或根据不同人称用同类的动词。 I must go -- So must I. John can speak French.--So can I. I‘ve got a new car.--So has John. She is clever.-- So is he.
2."Neither/Nor + do + 主语" 结构 如果上文表示否定意义而在简短反应中表示同样 看法时，可用此结构。例如，甲方说I can‘t swim， 乙方如果想表示"我也不会游泳"，英语可以说 Neither can I. / Nor can I(=I can‘t either)。
又例如： A：He doesn‘t speak French. B：Neither/Nor do I. Neither/Nor does my brother. Neither/Nor does my father. 关于以上两种结构，有两点说明：
第一，能用动词缩略形式。例如： I‘m going to London. ---So‘s John。(is) I‘ve been to New York. ---So‘s John.(has) I‘d have gone to Tokyo if I could.---So‘d John.(would) John hasn‘t got a visa. ---Nor‘ve do I.(ha...
下面是出国留学网四六级英语频道整理的英语六级语法常考知识点(十)：9种否定，欢迎阅读。
1) 一般否定句
I don‘t know this. No news is good news.
There is no person /not a person/not any person in the house.
2)特指否定
He went to his office, not to see him.
I am sorry for not coming on time.
I don‘t think/believe/suppose/feel/imagine you are right.
3)部分否定
I don‘t know all of them.
I can‘t see everybody/everything.
All the answers are not right.(并非所有答案都对。)
All is not gold that glitters. (闪光的不一定都是金子。)
Both of them are not right.(并非两人都对。)
4)全体否定
None of my friends smoke.
I can see nothing/nobody.
Nothing can be so simple as this.
Neither of them is right.
5) 延续否定
You didn‘t see him, neither/nor did I.
You don‘t know, I don‘t know either.
He doesn‘t know English, let alone/to say nothing of/not to speak of French.
6) 半否定句
We seldom/hardly/scarcely/barely hear such fine singing.
I know little English.
I saw few people.
7) 双重否定
You can‘t make something out of nothing.
What‘s done cannot be undone.
...
下面是出国留学网四六级英语频道整理的英语六级语法常考知识点(九)：more than，欢迎阅读。
more than
a)接名词，意为“不仅，不止”，有and的意思。
He was more than a scientist, but was a poet.
他不仅是为科学家，还是个诗人。
b)接数词，意为“...以上”。
More than twenty people were injured in the accident.
20多人在事故中受伤。
c)接形容词，意为“非常，十分”。
He was more than pleased with her performance.
他对她的表演非常满意。
d)接含can的从句，意为“如此...不能;...得不”。
The beauty of the place is more than I can describe.
那地方美得无法形容。
e)接动词，意为“不仅是...而且还...”。
They decide to do more than talk about the rise of the cheating.
下面是出国留学网四六级英语频道整理的英语六级语法常考知识点(八)：不定代词，欢迎阅读。
would rather do
would rather not do
would rather… than… 宁愿……而不愿。
还有would sooner, had rather, had sooner都表示"宁愿"、"宁可"的意思。
If I have a choice, I had sooner not continue my studies at this school.
I would rather stay here than go home. = I would stay here rather than go home.
典型例题
----Shall we go skating or stay at home?
----Which ___ do?
A. do you rather B. would you rather C. will you rather D. should you rather
答案B。本题考查情态动词rather的用法，would rather +do sth 意为"宁愿"，本题为疑问句，would 提前，所以选B。
* 不定代词
1)不定代词有
all , both, every, each, either, neither, more, little, few, much, many, another, other, some, any , one, no 以及some, something, anything, everything, somebody, someone, anybody, anyone, nothing , nobody, no one, none, everybody, everyone.等。
2) 不定代词的功能与用法
a. 除every 和no外不定代词既可用作名词，也可用作形容词。every和no在句中只能作定语。
I have no idea about it.
b. all 都，指三者以上。
all 的主谓一致：all的单复数由它所修饰或指代的名词的单复数决定。
All goes well. 一切进展得很好。
all 通常不与可数名词单数连用，如：不说 all the book，而说 the whole book。
但all可与表时间的可数名词单数连用，如 all day，all night，all the year; 但习惯上不说 all hour，all century...
下面是出国留学网四六级英语频道整理的英语六级语法常考知识点(七)：方式状语从句，欢迎阅读。
方式状语从句通常由as, (just) as…so…, as if, as though引导。
1) as, (just) as…so…引导的方式状语从句通常位于主句后，但在(just) as…so…结构中位于句首，这时as从句带有比喻的含义，意思是"正如…"，"就像"，多用于正式文体，例如：
Always do to the others as you would be done by.
你希望人家怎样待你，你就要怎样待人。
As water is to fish, so air is to man.
我们离不开空气，犹如鱼儿离不开水。
Just as we sweep our rooms, so we should sweep backward ideas from our minds.
正如打扫房屋一样，我们也要扫除我们头脑中落后的东西。
2) as if, as though
两者的意义和用法相同，引出的状语从句谓语多用虚拟语气，表示与事实相反，有时也用陈述语气，表示所说情况是事实或实现的可能性较大。汉译常作"仿佛……似的"，"好像……似的"，例如：
They completely ignore these facts as if (as though) they never existed.
他们完全忽略了这些事实，就仿佛它不存在似的。(与事实相反，谓语用虚拟语气。)
He looks as if (as though) he had been hit by lighting.
他那样子就像被雷击了似的。(与事实相反，谓语用虚拟语气。)
It looks as if the weather may pick up very soon.
看来天气很快就会好起来。(实现的可能性较大，谓语用陈述语气。)
说明：as if / as though也可以引导一个分词短语、不定式短语或无动词短语，例如：
He stared at me as if seeing me for first time.
他目不转睛地看着我，就像第一次看见我似的。
He cleared his throat as if to say something.
他清了清嗓子，像要说什么似的。
The waves dashed on the rocks as if in anger.
波涛冲击着岩石，好像很愤怒。
...
下面是出国留学网四六级英语频道整理的2015英语六级语法常考知识点(六)：only，欢迎阅读。
在学习英语的过程中，我们常遇到only与其它词或结构搭配来表达不同的意思，现将这些用法示例。
一、only引导的词组或句子放在句首作状语时，通常要用倒装结构。如
Only in this way can you solve the problem.
只有通过这种方式你才能解决问题。
Only if you study hard can you pass the exam.
只有努力学习才能通过考试。
Only then did I realize my mistake.
只有那时我才意识到错了。
二、not only...(but also)出现在句首时，如果架连接的是两个句子，常用倒装。如
Not only did we lose all our money,but we also came close to losing our lives.
我们不仅丢了钱，还差点把命丢了。
Not only did he speak correctly,but he also spoke easily.
他不仅说得准确，而且说得很轻松。
三、only放在不定式前面，常表示不愉快或出乎人们的意料的结果。如
I went all the way to his home only to find hime out at a meeting.
我径直到他家里去，不料发现他出去开会了。
I hurried to the post office only to find it closed.
我匆忙赶到邮局，不料已经关门了。
She went home only to find her house burglarized.
她回到家里，发现房子被盗了。
四、“too...to...”结构中，表示否定意思，但在“only too...to...”结构中，only too = very，表示肯定意思。如
The patient is too weak to walk.
那个病人太虚弱了，走不动。
We are only too willing to do it for you.
我们非常愿意为你做那事。
I am only too delighted to accept your king invitation.
我非常高兴地接受你的邀请。
五、在“one of + 复数名...
下面是出国留学网四六级英语频道整理的英语六级语法常考知识点(五)：表数量，欢迎阅读。
一、 none 无
1) none作主语，多与of 构成短语 none of。 在答语中，none可单独使用。
Are there any pictures on the wall? None.
2) none作主语，谓语动词单复数均可。但如做表语，则其单复数与表语一致。
It is none of your business.
二、few 一些，少数
few 作主语时，谓语动词用复数，多用于肯定句。
三、some 一些
1) 可与复数名词及不可数名词连用。
2) 当做"某一"解时，也可与单数名词连用。(= a certain)
You will be sorry for this some day.
总有一天，你会后悔这件事的。
A certain (some) person has seen you break the rule.
某些人不同意你的看法。
注意：
(1)在肯定疑问句中用some代替any。
(2)some用于其他句式中:
a.肯定疑问句中：说话人认为对方的答案会是肯定的，或期望得到肯定回答时。
Would you like句式中，表委婉请求或建议，如：
Would you like some coffee?
b.在条件状语从句中表示确定的意义时，如：
If you need some help，let me know.
c.some位于主语部分,
Some students haven‘t been there before.
d.当否定的是整体中的部分时，some可用于否定句。如：
I haven‘t heard from some of my old friends these years.
这些年我没有收到一些老朋友的信。
四、any 一些
1)any 多用于否定句和疑问句和条件状语从句中。
当句中含有任何的意思时，any可用于肯定句。
Here are three novels. You may read any.这有三本小说，你可任读一本。
五、one, ones 为复数形式
ones必须和形容词连用。如果替代的名词时无形容词在前，则用some, any，而不用ones。
Have you bough...
下面是出国留学网四六级英语频道整理的英语六级语法常考知识点(四)：may，欢迎阅读。
Only in this way, can you learn English well.
Only after being asked three times did he come to the meeting.
如果句子为主从复合句，则主句倒装，从句不倒装
Only when he is seriously ill, does he ever stay in bed.
1) 表示允许或请求;表示没有把握的推测;may 放在句首，表示祝愿。
May God bless you!
He might be at home.
注意： might 表示推测时，不表示时态。只是可能性比may 小。
2) 成语： may/might as well，后面接不带to 的不定式，意为"不妨"。
If that is the case, we may as well try.
典型例题
Peter ___come with us tonight, but he isn‘t very sure yet.
A. must B. may C. can D. will
答案B. 表可能性只能用may. 此句意可从后半句推出。
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