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

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