2019中考英语总练习学案--状语从句(1).doc
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2019中考英语总练习学案--状语从句(1)
注意事项:认真阅读理解,结合历年的真题,总结经验,查找不足!重在审题,多思考,多理解!
【考点聚焦】
1、各类状语从句的结构及用法;
2、各种状语从句中连词的用法;
3、状语从句中的时态问题;
4、常考的典型状语从句。
【知识要点讲解】
1、引导时间状语从句的连词
主要有when,while,a,bythetime,before,after,since,till/until,assoonas 等。其中when,while和as都可表示“当……时候”,但用法有区别:
(1)when意为“在……时;当……时”,可表示点时间或段时间,从句谓语可以是终止性动词,也可以是延续性动词。如:
Whenlgothome,hewashavingsupper、
(2)as意为“边……边……”或“与……同时”,重在表示两个动作同时发生,伴随进行。as从句是终止性动词时,主句通常也用终止性动词。如:
TheysangastheydanceD、
(3)while只可表示段时间,从句谓语只限于延续性动词。如:
Whilelwassleeping,myfathercamein.
注:从句谓语是持续性动词时,when、while和as可以互换;主、从句谓语都是终止性动词时,when与ss可互换,从句谓语表示状态时,通常用while。
(4)until,till意为“直到”,引导时间状语从句。当主句谓藉动词是延续性动词时,主句常用肯定形式;当主句谓语动词是非延续性动词时,主句要用否定形式,即not...until/till、—意为“直到……才……”。如:
I'llwaithereuntil/tillhecomesback、
Youcan'tgohomeuntil/tillyoufinishyourwork、
2.引导原因状语从句的连词
原因状语从句一般由because,since,as,for引导。注意as,because,since和for 的区别:
(1)如果原因是构成句子的最主要部分,一般用becam~。because引导的从句一般不放在句子的开头。如:Imissedthetrainbecauselgotuplate。
注意:对于以why开头的问句,一般只能用because引导的从句来回答。
(2)如果原因已为人们所知,或不如句子的其余部分重要,就用s8或since,since比as稍微正式一些。as和since引导的从句一般放在句子的开头。如:Ashewasnotwell,Idecidedtogotherewithouthim、
Sincethismethoddoesn'twork,let'stryanother、
(3)for表示所说的理由是一种补充说明,因此,for引导的从句可以放在括号里,而且fN引导的从句一般不放在句子开头。如:
Idecidedtostopandhavelunch,forlwasfeelingquitehungry。
3、“祈使句+and/or+简单句”可以用来替代条件状语从句。其中and表示顺承,or那么表示转折。如:
Ifyouworkharder,you'llpasstheexam.==Workhagder,andyou'llpasstheexam、
4、引导结果状语从句的连词
主要有:so/such...that...,sothat等。
(1)so...that结构在某种情况下可以与enoughto和too...to结构相互转换。如:Sheissoshortthatshecan'treachthebuttonsofthelift.==Sheistooshortto reachthebuttonsofthelift.
(2)sothat也可以引导结果状语从句,意为“结果是,以至于”。如:Theymissedthebussothattheywerelateforclass、
注意:sothat也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。如:HegotupearlysothathecouldgettoschoolontimE、==Hegotupearlytogettoschoolontime.==Inordertogettoschoolontime,hegotupearly、
[特别提示]
·时间和条件状语从句必须遵循时态呼应规律。如果主句是一般将来时态,从句不用将来时态,而要用一般现在时。如:Iwon'tgotherewithyouifitrainstomorrow、
·从句可以位于主句之前,也可以位于主句之后。不过从句在前时,主从句之间往往用逗号隔开。如:Pleasetellmewhenhecomesback、==Whenhecomesback,pleasetellme。*****************************************************结束
【针对性练习】
()1.MissZhaoisveryhelpful.Sheoftenhelpsus_______weareintrouble.
A.whether
B.although
C.whenever
D.however
()2.Ileftmyumbrellainmyroom.Couldyouwait____Igobacktogetit?
A.when
B.if
C.until
D.before
()3.--Jack,youlooktiredtoday.What'swrong?
--Iwasbusy____Idon'tgotobeduntilmidnightyesterday.
A.too;to
B.enough;to
C.so;that
D.since;that
()4.We'llgotovisitTian'anmenSquare_____itdoesn'traintomorrow.
A.if
B.assoonas
C.when
D.since
()5.Thebookwassodifficultthathereaditforthreehours___heunderstoodit.
A.when
B.until
C.after
D.before
()6.ThestudentswillgototheSummerPalaceifit____tomorrow.
A.don'train
B.won'train
C.doesn'train
D.isn'train
()7.Noneofusknewwhathadhappened_____weheardthenewsonradio.
A.after
B.until
C.when
D.since
()8.Youcangoout______youpromisetobebackbefore10oclock.
A.that
B.solongas
C.sothat
D.for
()9.Don'tworry.I'lltellMr.Green_____hecomesback.
A.when
B.how
C.why
D.where
()10.Mrs.Shutewouldn'tleavetheTVset,_____herchildrenwerewaitingfor theirsupper.
A.if
B.because
C.eventhough
D.assoonas
()11.Thepolicemanaskedthechild____crossthestreet____thetrafficlights turnedgreen.
A.not;when
B.don't;when
C.notto;until
D.notto;if
()12.Thecamerais_____expensive______Ican'taffordit.
A.so;that
B.such;that
C.so;asto
D.enough;that
()13.Howdidyoutrytogettoschoolontime_____youmissedtheschoolbus?
A.when
B.if
C.once
D.that
()14.--Thisdresswaslastyear'sstyle.
--Ithinkitstilllooksperfect_____ithasgoneoutthisyear.
A.sothat
B.eventhough
C.asif
D.eversince
()15.Iknownothingaboutit____myfriendtoldmeyesterday.
A.because
B.since
C.until
D.so
()16.Youwillbeabletogetgoodmarks________
A.whileyouaredoingyourhomeworkbyyourself
B.ifyoudosomerevisioneveryday
C.beforeyoubegintostudyhard
D.untilyoufollowyourteachers'advice
()17..Itwasalreadyfiveo'clock_____wegothome.
A.when
B.while
C.because
D.if