原因、结果、目的状语从句讲解和练习(答案).doc
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l原因状语从句
(1)原因状语从句通常由because,since,as,for引导。
(2)because表示直接原因,语气最强。
because引导的原因状语从句多放在主句之后。
回答由why提出的问题,只能用because。
此外,because和so不能同用在一个句子里。
例如:
------Whyaren’tgoingthere?
------BecauseIdon’twantto.
since引导原因状语从句,相当于nowthat,意思是“因为……,既然……,鉴于……”。
例如:
Sincetherainhasstopped,let’sgoforawalk.既然雨停了,我们出去散散步吧。
as和since语气较弱,一般用来表示明显的原因。
由as和since引导的原因状语从居多放在句首。
例如:
Ashehasnocar,hecan’tgetthereeasily.
Sincewehavenomoney,wecan’tbuyit.
(4)for表示所说的理由是一种补充说明,for引导的从句一般不放在句子的开头。
如:
Idecidedtostopandhavelunch,forIwasfeelingquitehungry.
小试牛刀:
Iwaslateforclassyesterday_______therewassomethingwrongwithmybike.
Hetookoffhiscoat_______hefelthot.
youcan’tanswerthequestion,I’llasksomeoneelse.
l结果状语从句
(1)结果状语从句由so…that,such…that,sothat引导。
(2)so…that语such...that可以互换。
在由so...that引导的结果状语从句中,so是副词,与形容词连用。
其结构是:
“...so+形容词(副词)+that+从句”。
例如:
Hewassogladthathecouldn’tsayaword.
Motherlivessofarawaythatwehardlyever(几乎不,从来不)seeher.
在由such…that引导的结果状语从句中,such是形容词,它修饰的可以是单数或复数可数名词,也可以是不可数名词;其结构是:
“...such+a/an+形容词+名词+that+从句”。
例如:
Itwassuchahotdaythatnobodywantedtodoanything.
Hehadsuchlongarmsthathecouldalmosttouchtheceiling.(天花板)
有时上述两种结构是可以互换的。
例如:
Itwassuchawonderfulfilmthatallofuswantedtoseeitagain.
=Thefilmwassowonderfulthatallofuswantedtoseeitagain.
(3)如果名词前由many,much,little,few等词修饰时,只能用so,不用such。
例如:
Soonthereweresomanydeerthattheyateupallthewildroses.
Hehassolittletimethathecan’tgotothecinemawithyou.
(4)如果主从句的主语相同,并且从句是否定的形式,可以用too...to...句型转化。
例如:
Hewassoexcitedthathecouldn'tgotosleepthatnight.=Hewastooexcitedtogotosleep.
(5)如果主从句的主语相同,但从句是肯定的形式,可以用adj.+enough替换。
例如:
Heissooldthathecouldgotoschool.=Heisoldenoughtogotoschool.他够大了,可以去上学。
小试牛刀:
Itis___hotintheroom___wehavetogooutforawalk.
Itwasawonderfulmovieallofuswantedtoseeitagain.
Therewerelittlewaterinthebottlethebirdcouldn’treachit.
Heissoyoungthathecouldn’tgotoschool.=.
Theclassroomissobigthatitcanhold100person.=.
l目的状语从句
(1)目的状语从句通常由sothat,inorderthat(为了,以便)引导。
例如:
Westartedearlysothatwecouldcatchthefirsttrain.
Weusedthecomputerinorderthatwemightsavetime.
(2)sothat可引导目的状语从句,此时可用to或inorderto替换,将其改为简单句。
例如:
Hegotupearlysothathecouldgettoschoolontime.
=Hegotupearly(inorder)togettoschoolontime.
(3)sothat既可引导目的状语从句,又可引导结果状语从句。
区别这两种从句的办法有两个:
1)目的状语从句里往往带有情态动词can,could,may,might等。
2)从意思上看,目的状语从句往往表示的目的很明确。
例如:
Speakclearlysothattheymayunderstandyou.(目的状语从句)
Jackisbadlyillsothathehastorest.(结果状语从句)
小试牛刀:
IhurriedIwouldn'tbelateforclass.
Weshouldgobybus___wecangetthereearlier.
MayIsitnearerIcanseemoreclearly?
一、单项选择。
1.We’llstayathomeifit______tomorrow.
A.rain B.rainsC.israining D.willrain
2.Wedidn’tgohome_____wefinishedthework.
A.since B.untilC.because D.though
3.She______whenIwenttoseeher.
A.isreading B.havereadC.wasreading D.reads
4._____therainstops,we’llsetoffforthestation.
A.Before B.UnlessC.Assoonas D.Though
5.Shelooksforwardeveryspringto____theflower-linedgarden.
A.visit B.payingavisitC.walkin D.walkingin
6.Mr.Whitehopedhe______Chinathenextyear.
A.wouldvisit B.willvisitC.visited D.hasvisited
7.Itoldhimthatthesun______intheeast.
A.rises B.roseC.hasrisen D.wasrising
8.Shewas_____tired_____shecouldnotmoveaninch.
A.so,that B.such,thatC.very,that D.so,as
9.Hewassentencedtodeath_____whathehadstolenfromthebank.
A.that B.sinceC.because D.becauseof
10.Ididn’tknowwhat______.
A.wasthematter B.isthematterC.thematterwas D.thematteris
11.Icouldn’tagreewith______atthemeeting.
A.thatyousaid B.whichyousaidC.whatdidyousay D.whatyousaid
12.Thebadmanranawaytoavoid_______andwasfinallyputintoprison.
A.seeing B.tobeseenC.beingseen D.tobecaught
13.EveryoneexceptJimandJack______.
A.knowwhoishe B.knowwhoheisC.knowswhoishe D.knowswhoheis
15.Itistenyears______Ileftmyhometown.
A.since B.IfC.whether D.until
16.Couldyoutellus______Mr.BrownlivesinRoom202?
A.thatB.whereC.until D.if
17.IlearnedalittleRussian_____Iwasatmiddleschool.
A.though B.althoughC.asif D.when