高中英语语法大全 状语从句

高中英语语法大全 状语从句.txt
高中英语语法大全 状语从句
一.概念
状语从句修饰主句中的动词,形容词,副词等,在复合句中作状语.引导状语从句的关联词是从属连词.状语从句用陈述句语序,一般位于复合句的句首或句末.当从句在句首时,从句后常用逗号和主句相隔.状语从句根据其在句中的不同作用分别表示时间,地点,原因,目的,结果,条件,比较,让步,行为方式等.
二.相关知识点精讲
1.地点状语从句
地点状语从句通常由where, wherever 引导。例如:
Where I live there are plenty of trees. 我住的地方树很多。
Wherever I am I will be thinking of you. 不管我在哪里我都会想到你。
2.方式状语从句
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
3.原因状语从句
比较because, since, as和for:
1)because语势最强,用来说明人所不知的原因,回答why提出的问题。当原因是显而易见的或已为人们所知,就用as或 since。例如: 
I didn't go, because I was afraid. 我不去是因为我怕。 
Since /As the weather

is so bad, we have to delay our journey. 天气那么糟,旅行推迟了。
2)由because引导的从句如果放在句末,且前面有逗号,则可以用for来代替。但如果不是说明直接原因,而是多种情况加以推断,就只能用for。例如: 
He is absent today, because / for he is ill. 他今天缺席,因为他病了。 
He must be ill, for he is absent today. 他一定病了,所以今天缺席。
4.目的状语从句
表示目的状语的从句可以由that, so that, in order that, lest, for fear that, in case等词引导。例如:
You must speak louder so that /in order that you can be heard by all. 你必须大点声,别人就能听见了。
He wrote the name down for fear that(lest) he should forget it. 他写下了这个名字以免以后忘记。
Better take more clothes in case the weather is cold. 最好多穿点衣服,以防天发冷。
5.结果状语从句
 结果状语从句常由so…that 或 such…that引导。so…that与such…that之间可以转换。例如:
The boy is so young that he can't go to school. 这男孩年龄太小,不能上学。 
He is such a young boy that he can't go to school
6. 条件状语从句
 连接词主要有 if, unless, as/so long as, on condition that 等。if 引导的条件句有真实条件句和非真实条件句两种。非真实条件句已在虚拟语气中阐述。 
unless = if not. 
例如: Let's go out for a walk unless you are too tired. 如果不太累,我们去散散步。 
If you are not too tied, let's go out for a walk.
典型例题
You will be late ___ you leave immediately.
A. unless B. until C. if D. or 
答案A。句意:除非你立即走,否则你就回迟到的。可转化为 If you dong leave immediately, you will be late。B、D句意不对,or表转折,句子如为 You leave immediately or you will be late.
7. 让步状语从句
1)though, although引导的让步状语从句,后面的从句不能有but,但是 though 和yet可连用。例如:
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. 虽然他很老了,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)
2)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)。例如:
Child as /though he was, he knew what was the right thing to do. 虽然是个小孩,该做什么不做什么,他全知道。
3)ever if, even though 即使。例如:
We'll make a trip even though the weather is bad. 即使天气不好,我们也要去远足。
4)whether…or… 不管……都。例如:
Whether you believe it or not, it is true. 信不信由你,这确实是真的。
5)"no matter +疑问词" 或"疑问词+后缀ever"

。例如:
No matter what happened, he would not mind. =Whatever happened, he would not mind. 不管发生什么,他不在意。
替换:no matter what = whatever
no matter who = whoever
no matter when = whenever
no matter where = wherever
no matter which = whichever
no matter how = however
 注意:no matter 不能引导主语从句和宾语从句。
8. 比较while, when, as
1)as, when 引导短暂性动作的动词。例如:
Just as / Just when / When I stopped my car, a man came up to me. 我一刹车,有一个人向我走来。
2)当从句的动作发生于主句动作之前,只能用when 引导这个从句,不可用as 或 while。例如:
When you have finished your work, you may have a rest. 赶完活后,你可以休息一下。
3)从句表示"随时间推移"连词能用as,不用when 或while。例如:
As the day went on, the weather got worse. 日子一天天过去,天气越变越坏。
9.比较until和till
此两个连词意义相同。肯定形式表示的意思是"做某事直至某时",动词必须是延续性的。否定形式表达的意思是"直至某时才做某事"。动词为延续性或非延续性都可以。正确使用这两个连词的关键之一就在于判断句中的动词该用肯定式还是否定式。肯定句:I slept until midnight. 我一直睡到半夜时醒了。
Wait till I call you. 等着我叫你。(在肯定句中可用before代替。例如 Let's get in the wheat before the sun sets.)
 否定句:She didn't arrive until 6 o'clock. 她直到6点才到。
 Don't get off the bus until it has stopped. 公共汽车停稳后再下车。
I didn't manage to do it until you had explained how. 直到你教我后,我才会做。
区别:1)until可用于句首,而till通常不用于句首。例如:
Until you told me, I had heard nothing of what happened. 直到你告诉我以前,出了什么事我一点也不知道。
 2)until when 疑问句中,until要放在句首。例如:
---Until when are you staying? 你呆到什么时候?
--- Until next Monday. 呆到下周一。 
注意:否定句可用另外两种句式表示。
1)Not until…在句首,主句用倒装。例如:
 Not until the early years of the 19th century did man know what heat is. 直到19 世纪初,人类才知道热为何物。
 Not until I began to work did I realize how much time I had wasted. 直到工作,才认识到我已蹉跎了几多岁月。
2)It is not until… that… 。例如:
It was not until I began to work that I realized how much time I had wasted.
10.表示"一…就…"的结构
 hardly/scarcely…when/before, no sooner…than和as soon as都可以表示"一…就…"的意思。例如:
 I had hardly / scarcely got home when it began to rain. 刚回家,就下起雨来了。
 I had no sooner got home than it

began to rain.
 As soon as I got home, it began to rain.
 注意:如果hardly, scarcely 或no sooner置于句首,句子必须用倒装结构。例如:
 Hardly / Scarcely had I got home when it began to rain.
 No sooner had I got home than it began to rain.



讲解宾语从句,定语从句,表语从句,状语从句2009年08月03日 星期一 12:33 P.M.一、状语从句分类及常用连词:
类别 连 词
时间状语从句 when, whenever, while, as, before, after, since, till, once, as soon as,etc.
地点状语从句 where,wherever
原因状语从句 because, since, as, for, now that, etc.
目的状语从句 in order that, so that, that, etc.
结果状语从句 so…that, so that, such…that, that, etc.
条件状语从句 if, unless, as(so)long as, etc.
让步状语从句 though, although, even if, even though, however, whatever, as,etc.
比较状语从句 as…as, so…as, than, etc.
方式状语从句 as, as if, as though, etc.

二、相似连词的用法区别
1.when, while, as,
while表时间,从句需用延续性动词,切不可用瞬间动词。
when表时间,从句既可以用延续性动词,又可以用瞬间动词。
as表时间,与when相似,但侧重强调主从句动作同点或同段进行。
when, while后可以接分词短语。
2.because, as, since, for

语气 位置 意义
because 最强 前或后 “原因”;表客观因果关系;回答“”
as 较强 前 “由于”;把众人所知的事实当作理由
since 较弱 前 “既然”;就对方陈述的事实作为理由
for 最弱 后 “理由”;对某一事实进行推断的理由

注:上面所说的“前”,指从句在主句之前;“后”,指从句在主句之后。

3.so that, so…that, such…that
so that “以便”、“结果”表目的和结果。注意:在从句中有情态动词表目的。无情态动词表结果。

so…that “如此的…以致于”表结果。该结构常见于:
1.so+形/副+that 2.so+形+a(an)+单数名词+that 3.so+many/much+复数名词(不可数名词)+that

such…that “如此的…以致于”表结果。该结构常见于:
1.such+a(an)+形+名词+that 2.such+形+复数名词/不可数名词+that

4.though, although, as,
though, although在句首表“尽管”两者都可以用。但句后不能再用but。
下列情况只能用though:
▲ as though (=as if); even if (=even though)
▲ 在句末表示“然而”
as表示“尽管”,从句的表语、状语等成分要倒装。

5.whatever, however,wherever, whenever
它们是what, how, where, when的强势语气。分别等于:
no matter what, no matter how
no matter where, no matter when


二宾语从句
1.肯定句
结构:主句+that(可有可无)+肯定句
2.一般疑问句
结构:主句+if+一般疑问句
3.特殊疑问句
结构:主句+疑问词+肯定

句。
宾语从句的时态
1.主现从不限(主句是一般现在时,从句的时态不限)
2.主过从四过(主居是一般过去时,从句的时态应是一般过去时、过去完成时、过去将来时或者过去进行时)
在复合句中用作宾语的从句叫做宾语从句。宾语从句是初中英语中最重要的一种从句,它内容完整,句型结构较为复杂,主句和从句时态搭配要求严格,在中考试题中频频出现。而且学好宾语从句也可为到高中学习间接引语、主语从句、表语从句及同位语从句打下良好的基础。学习宾语从句并不难,只要你能过好下面的三道关:
第一关,选好连接词(也有人叫关联词)。
引导宾语从句的连接词,课本上写有三类,但从学习的角度看分为四类更为实用。
1.连词that:只起连接作用,在从句中不作句子成分,也无词汇意义,在口语中或非正式文体中常被省略。例如:
1)He knew(that)he should work hard.
2)I am glad(that)you\'ve passed the exam.
2.连词whether或if:它们起连接作用,在从句中不作句子成分,作“是否”解,口语中多用if。例如:
3)Do you know whether he will ride here at 8 tomorrow morning?(注:2002上海市徐汇区中考试题填上答案后的句子。以下再有这种例句,都为2002年中考题,只写某地。)
4)Tom didn\'t know if/whether his grandpa liked the present.
作“是否”解的if和whether在具体用法上差别较大,同学们不易掌握。在宾语从句中用whether没有用if时受到那么多限制。例如:
5)He asked me whether or not I was coming.他问我是否要来。(该句中的whether不能换成if,因为if不能与or连用。)
3.连接代词who,whom ,whose,what, which:它们起连接作用,作句子成分,各有其自己的意义。例如:
6)The teacher asked the new student which class he was in?(武汉市)(which引导宾语从句,在从句中作定语,修饰class,意为“哪个”。)
7)Can you tell me whom he is waiting for?(天津市)
4.连接副词when,where, why,how:起连接作用,分别作时间、地点、原因、方式状语,各有其自己的意义。例如:
8)I wonder where he got so much money.对他从哪里弄到那么多钱我感到疑惑。(where在从句中作地点状语,修饰got,意为“哪里;什么地方”。)
9)He didn\'t tell me how old his friend was.(四川省)(how引导宾语从句,作程度状语,修饰old,意为“怎样;如何”等意。)
第二关,牢记宾语从句的语序是陈述句语序,即“连接词+主语+谓语+其他”。这里特别强调的是,它的主语和谓语的语序是陈述句的语序,不是疑问句的倒装语序。例如:
10)You must remember what your teacher said.(河南省


11)—Dad,do you know when the football game will start?
—In half an hour.(宁波市)
12)汉译英:你能不能告诉我,我们去看望谁?
误:Can you tell me who(m)do we have to see?
正:Can you tell me who(m)we have to see?
错句的错误出在宾语从句中误用了疑问句的结构——主语前加了个助动词do。因为我们已经习惯了特殊疑问句,如W hat time does the plane arrive in Paris?就顺口说出“Do you know what time does the plane arrive in Paris?”这种错误句子来。但是一旦我们注意了,我们不久就习惯于说“Do you know what time the plane arrives in Paris?”了。
第三关,注意时态的呼应。
宾语从句中谓语动词的时态,常常受主句谓语时态的制约,这种现象称为“时态的呼应”。例如:
13)汉译英:我原以为你今天有空的。
误:I thought(that)you are free today.
正:I thought(that)you would be free today.
错句中宾语从句用are很可能是因为有 today,但因为主句谓语是thought,所以从句谓语就该用过去将来时would be了。
这种时态的呼应,如果主句谓语是现在时或将来时,宾语从句的谓语时态不受限制,如上述例句2),3),7),8),10),11),12)。如果主句时态是过去时,宾语从句一般要随着改为相应的过去时(即一般过去时、过去进行时、过去完成时、过去将来时等)。例如:
14)He thought he was working for the people.
15)I heard she had been to the Great W all.
16)John hoped that he would find a job soon.
但宾语从句如果表示定理法则、永恒真理等,则不变化:
17)The teacher told us that the earth moves around the sun


定语从句
定语从句
内容提要

定语从句是由关系代词和关系副词引导的从句,其作用是作定语修饰主句的某个成分,定语从句分为限定性和非限定性从句两种。状语从句分为时间状语从句,结果状语从句,让步状语从句,原因状语从句,条件状语从句以及行为方式状语从句。名词从句包括主语从句,宾语从句,表语从句和同位语从句及there be句型。

一、 限定性定语从句

1. that即可代表事物也可代表人,which代表事物;它们在从句中作主语或宾语,that在从句中作宾语时常可省略关系词,which在从句中作宾语则不能省略。而且,如果which在从句中作“不及物动词+介词”的介词的宾语,注意介词不要丢掉,而且介词总是放在关系代词which的前边,但有的则放在它原来的位置

2. which作宾语时,根据先行词与定语从句之间的语义关系,先行词与which之间的介词不能丢

3. 代表物时多用which,但在带有下列词的句子中用that而不用which,这些词包括all, anything, much等,这时的th

at常被省略

4. who和whom引导的从句用来修饰人,分别作从句中的主语和宾语,whom作宾语时,要注意它可以作动词的宾语也可以作介词的宾语

5. where是关系副词,用来表示地点的定语从句

6. when引导定语从句表示时间

〔注〕值得一提的是,表示时间“time"一词的定语从句只用when引导,有时不用任何关系代词,当然也不用that引导

By the time you arrive in London, we will have stayed there for two weeks.

I still remember the first time I met her.

Each time he goes to besiness trip, he brings a lot of living necessities, such as towers, soap, toothbrush etc.

7. whose是关系代词,修饰名词作定语,相当于所修饰成分的前置所有格

8. 当从句的逻辑主语是some, any, no, somebody, anybody, nobody, something, anything, everything或nothing时,常用there is来引导

二、非限定性定语从句:非限定性定语从句的作用是对所修饰的成分作进一步说明,通常和主句间用逗号隔开,将从句拿掉后其他部分仍可成立

1. which引导的非限定性定语从句来说明前面整个句子的情况或主句的某一部分

2. 在引导限定性定语从句时,that有时相当于in which, at which, for which或at which

Attitudes towards daydreaming are changing in much the same way that(in which) attitudes towards night dreaming have changed. 人们对白日做梦的态度正在改变,这与人们对夜间做梦的看法的变化有非常相似之处。

I like the music for the very reason that(for which) he dislike it. 我出于某种原因喜欢这种音乐,而他恰恰与我相反。

We arrived the day that(on which) they left. 刚好我们到的那天他们走了。

3. 有时as也可用作关系代词

4. 在非限定性定语从句中,不能用that,而用who, whom代表人,用which代表事物



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