狀語(yǔ)從句
狀語(yǔ)從句有時(shí)間、地點(diǎn)、原因、目的、方式、結(jié)果、條件、讓步等八種。
一、時(shí)間狀語(yǔ)從句：
引導(dǎo)詞有after，before，as，once，since，till，until，when，whenever，while，as soon as，the moment/minute…(一…就)，the time,the day,every time,next time,each time，by the time of，no sooner…than(一…就)，hardly…when(一…就).例如：
Each/Every time he comes here,he will drop in on me.
每次他來(lái)這兒他都順便看我.
He was ill last time I saw him.上次我見到他時(shí)他病了.
No sooner had she heard the news than she cried.她一聽到這個(gè)消息就哭了.
[辨析]when與while
when引導(dǎo)的從句動(dòng)詞可以是延續(xù)性的或短暫性的，while引導(dǎo)的從句中動(dòng)詞必須是延續(xù)性的;在“be…when…”句式中when表“at that time(就在這時(shí))”意，這樣用的when不能換為while;while有時(shí)并不表示時(shí)間，而表示對(duì)比，意“而”、“卻”，when無(wú)這樣的用法。例如：When I got home I found the door locked./While(或When)we were working in the fields,it suddenly began to rain./He was wandering through the streets when a bike hit him./His pencil is red,while mine is yellow.
[辨析]till與until
一般情況下可以互換，但until可以位于句首，till則不能。例如：
Until it stops raining，the children cant go out.雨停了，孩子們才能出去.
=Not until the rain stops can the children go out.
二、地點(diǎn)狀語(yǔ)從句
引導(dǎo)詞有where，wherever.例如：
Ill go wherever the people want me to go.(wherever=to any place where)
He works where his grandfather fought.(where=in the place where)
Where there is a will,there is a way.(Where=In the place where)
三、原因狀語(yǔ)從句
引導(dǎo)詞有because,since,as,now(that)(既然)
回答以why提出的問題時(shí)，只能用because,而不能用as等。
since=now(that),表“既然”意，表示已知的或明顯的原因，由此加以推論。例如：
Now that/Since you are free today,you may have a rest at home or go out for a walk.
for 是一個(gè)并列連詞，用來(lái)連接兩個(gè)并列句，引導(dǎo)的句子是對(duì)前面一句話的內(nèi)容的推測(cè)或補(bǔ)充說明。例如：It must have rained last night,for the ground is wet./The day has broken,for the birds are singing.(這兩句中的for都不可換為because或as,since等。)
四、目的狀語(yǔ)
引導(dǎo)詞有so that,in order that,that,in case(免得，以防)。目的狀語(yǔ)從句謂語(yǔ)常含有can/could/may/might/will/would等情態(tài)動(dòng)詞。例如：
He ran as fast as possible in order that he could catch the bus./Please remind me of it again tomorrow in case I forget.請(qǐng)明天再提醒我一下，以免我忘記。
五、方式(或比較)狀語(yǔ)從句
引導(dǎo)詞有as,as if,as though,than,as/so…as,the more…the more.例如：
Tom is not so/as tall as John./It looks as if it is going to rain./He runs faster than I.
注：as…as既可用于肯定句，又可用于否定句，so…as只能用于否定句。
六、結(jié)果狀語(yǔ)從句
引導(dǎo)詞有so…that,such…that,so that.例如：
1. He works so hard that he makes great progress in his studies.
2. Its such a difficult problem that nobody can work it out.
3. Theres not any noise here so that I feel very comfortable.
第3個(gè)例句中so that從句不是目的狀語(yǔ)從句，從結(jié)構(gòu)上看沒有can,may等情態(tài)動(dòng)詞，從意思上看I feel very comfortalbe是Theres not any noise的結(jié)果.
七、條件狀語(yǔ)從句
引導(dǎo)詞有if,unless,as/so long as,on condition that,in case(如果)等，從句的時(shí)態(tài)用一般現(xiàn)在時(shí)(含現(xiàn)在完成時(shí))，一般過去時(shí)(含過去完成時(shí))分別代替一般將來(lái)時(shí)和過去將來(lái)時(shí)。例如：
If it rains tomorrow,I wont go there./He said he would not go back home unless he had achieved a lot./Ill study so long as. Im alive./In case he come,let me know.如果他來(lái)的話，告訴我一聲。
If 引導(dǎo)的條件句可以是真實(shí)性條件句，也可以是非真實(shí)性條件句(用于虛擬語(yǔ)氣)
八、讓步狀語(yǔ)從句
引導(dǎo)詞有though,although,even if,even though,as,whoever,whatever,
however,no matter+what/who/when/…等。例如：
Though/Although he is ill,he still goes to school./She started her experiment,even though she had little money./Whatever you found,you must turn it in./However hard he worked,he hardly made any progress.
as 作“盡管”意時(shí)，一般將其句中的表語(yǔ)放在句首，例如：Young as he is,he knows a lot.=Although he is young,he knows a lot.若表語(yǔ)為名詞，冠詞要省略，例如：
Child as/though he is,he has remembered a lot of English words.(此句中though不可換為although)
although或though不能與but同時(shí)出現(xiàn)在一個(gè)復(fù)合句中，但是“Although/Though…，(and)yet…”句式卻是正確的。例如：
Although it is raining heavily,yet they are repairing the bridge.
狀語(yǔ)從句考點(diǎn)分析
1.If you go to Xian,you will find the palaces there more magnificent than
commonly .(上海高考)
A.supposing B.supposed C.to suppose D.suppose
析：than后實(shí)際上是一個(gè)比較狀語(yǔ)從句的省略式，其完整形式是than they are
commonly supposed.所以答案為B.
2.We wont give up we should fail ten times.(NMET)
A.even if B.since C.whether D.until
析：觀察題干，空白處應(yīng)填一表“即使”之意的詞，故應(yīng)選A.
3.-What was the party like?
-Wonderful.Its years I enjoyed myself so much.(NMET)
A.after B.when C.before D.since
析：答話者既然說“Wonderful”,那么后面的話必然是對(duì)此作進(jìn)一步的補(bǔ)充說明，
只有選D項(xiàng)才能表達(dá)“我多年未曾這么開心過了”意思。注意這兒的since從
句中謂語(yǔ)動(dòng)詞enjoyed是延續(xù)動(dòng)詞，該句相當(dāng)于I havent enjued myself so
much for years.
4.John plays football ,if not better than,David.(NMET)
A.as well B.as well as C.so well D.so well as
析：if not better than是插入語(yǔ)，可將其撇開，這時(shí)空白處要填as well as才
能與David相連接，D項(xiàng)在此不可用(so…as只能用于否定句)。A、C兩項(xiàng)皆少
as，故答案為B。
5.If we work with a strong will,we can overcome any difficulty, great it
is .(NMET)
A.what B.how C.however D.whatever
析：觀察題目，可知空白處要填一詞與great合表“無(wú)論多大”意。而however=
no matter how,與great一起正好表此意，其余項(xiàng)都不能表這意思。故答案為
C。
6.Mother was worried because little Alice was ill,especially Father was
away in France.(NMET)
A.as B.that C.during D.if
析：首先可以排除C，因?yàn)閐uring是介詞，不能引導(dǎo)從句。B項(xiàng)that,D項(xiàng)if 都
不能引導(dǎo)原因狀語(yǔ)，故只能選A、as表“因?yàn)?rdquo;。
7.She thought I was talking about her daughter, ,in fact I was talking
about my danughter.
A.whom B.where C.which D.while
析：空白處需填一個(gè)表示轉(zhuǎn)折對(duì)比的連詞，while可表“而”、“卻”意，故答案為D.
8. I admit his good points I can see his bad ones.
A.when B.as C.while D.before
析：若選A、B或D，admit應(yīng)改為admitted，can應(yīng)改為could,因?yàn)閣hen,as
表示“當(dāng)…的時(shí)候”before表“在…之前”，通常涉及過去某時(shí)發(fā)生的動(dòng)作、情
況.此題選C，while在此不表“當(dāng)…的時(shí)候”意，而表“雖然、盡管”意。全
句意思是“盡管我承認(rèn)他的優(yōu)點(diǎn)，我還是看到他的缺點(diǎn)”。
狀語(yǔ)從句專練
1. I get to Pairs,Ill call you up at the airport.
A.Since B.While C.Once D.Altough
2. the headmaster comes, we wont discuss this plan.
A.Unless B.If not C.Except D.Whether
3.Bill must have been away from the office. how many times I phoned
him,nobody answered it.
A.Whatever B.No matter C.In spite of D.Though
4.I had been to Beijing long you visited it.
A.before B.till C.after D.when
5. ,he is good at drawing.
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