2022年中考复习外研版语法复习-1状语从句课件28张

中考语法专题状语从句12定义 状语从句是指在句子中用作状语、起副词作用的句子，修饰谓语、非谓语动词、定语、状语或句子。状语从句分类1时间状语从句9方式状语从句6结果状语从句8比较状语从句7让步状语从句2地点状语从句3原因状语从句4条件状语从句5目的状语从句连接词：when,while,as,before,after,until/till,since,assoonas,bythetime4一、时间状语从句5连词用法例

句when

1.意为“当……时”,

从句的动词可用延续性动词，也可用非延续性动词2.意为“这时”或“在那时”

1.When

Icameintotheroom,hewaswritingaletter.2.IwaswalkingalongthestreetwhensuddenlyTompattedmeontheshoulder.while1.意为“当……时”；while引导的动作必须是持续性的2.意为“然而”

1.While

itwasraining,theywentout.

2.Allofusareworkinghard

whileheissleeping.as意为“一边……一边”，引导持续性动作，强调主句和从句的动作同时发生

2.

意为“随着”1.Hehurriedhome,lookingbehindashewent.

2.As

timegoesby,IlikeChinabetter.6till

until1.若主句动词是持续性动作，常用肯定式，表示“直到…为止”2.若主句动词是瞬间动词，要用否定式not…until表示“直到……才”1.Wewaitedtill(until)hecameback.2.Shedidn’tstopworkinguntileleveno’clock.since

1.意为“自从……以来”，主句常用现在完成时，从句用一般过去时2.it’s+时间+since从句1.GreatchangeshavetakenplaceinChina

since1978.

Shehastaughtinthisschoolsinceshecametothiscityin1989.2.It’sthreeyearssinceshecametothiscity.assoonas意为“一…就……”AssoonasIarriveinShanghai,I’llwritetoyou.7时间状语从句的时态1.主句一般将来时，从句用一般现在时(主将从现)Theboywillbeawriterwhenhegrowsup.2.主语含有情态动词，从句用一般现在时(主情从现)Whenthelights

arered,thetrafficmuststop.3.主句为祈使句，从句用一般现在时(主祈从现)Pleasedon’tgotobedbeforeyou

finishyourhomework.4.主句为一般过去时，从句也用过去时态(主过从过)IlikedreadingwhenIwasyoung.二、原因状语从句连接词:because,since(因为，既然),as,for注意:for连接的并列句分句前常有逗号，其引导的分句不可放于句首。例：Itmusthaverainedlastnight,forthegroundisstillwet.8【注】because不能与so同时使用。2.遵循“主将从现，主祈从现，主情从现”的原则1.连接词：if,unless,aslongas(只要)e.g.IfIamfree,Iwillcallyou.e.g.Weshallgotheretomorrowunlessitrains.=Weshallgotheretomorrowifitdoesn’train.

9三、条件状语从句e.g.Youwillsucceedaslongasyouworkhard.连接词：sothat,inorderthat10四、目的状语从句E.g.Speakslowlysothat/inorderthatwecanunderstandyou.sothat和inorderthat后常接含can/could,may/might,shall/should,will/would等情态动词的从句如果目的状语从句的主语与主句的主语相同，可用inorderto转化为简单句。E.g.I’llwritedownyourphonenumbersothatImaynotforget.=I’llwritedownyourphonenumberinordernottoforget.11五、结果状语从句连接词：sothat,so…that…,such…that…连词用法例句sothat意为“因此，所以，结果”，sothat前有逗号Weturneduptheradio,sothateveryoneheardthenews.名用such，形、副so，多多少少也用so。12so…that与such…that的区别总结:①so+形容词/副词+that…so+形+a/an+名(单数)+that…such+a/an+形+名(单数)+that…②用so不用such:so+many/much/few/little+形+名③用such不用so:such+形+不可数名词/可数名词复数13so…that…引导的结果状语从句可与too…to…或enough…to…构成的简单句转换。例句：Theboyissoyoungthathecan’tgotoschool.=Theboyistooyoungtogotoschool.=Theboyisnotoldenoughtogotoschool.转换时too放在所修饰词之前。too+adj./adv.enough放在所修饰词之后。adj./adv.+enough14Itwas_______________(如此好的天气)thatwedecidedtogofishing.Allofusfeelsurprisedthatsuchalittleboycaneat_____________(如此多的食物).他以前从没见过如此宏伟的一处自然景观。4.孩子们在夏令营里的生活是如此丰富，所以他们都想再次参加。suchgoodweathersomuchfoodHehasneverseensuchawonderfulnaturalwonderbefore.Thechildrenarehavingsuchcolorfullifeinthecampthattheyallwanttojoininthecampagain.  连接词：than,as...as,notas/so...as,the+比较级…,the+比较级15六、比较状语从句注意：as...as,notas/so...as中间用形容词或副词的原级。例句：1.Theearthisbiggerthanthemoon.2.Hewritesascarefullyashissister.3.Themoreexerciseyoutake,thehealthieryouwillbe.Theharderyouwork,thegreaterprogressyouwillmake.1.连接词：though,although,evenif,eventhough16例：Although/Though

heisyoung,heknowsalot.I’llgoevenif/thoughitrainstomorrow.七、让步状语从句【注】although和though可与yet或still连用，但不能与but连用。17连接词：where,whereverWherethereiswater,thereislife.哪里有水，哪里就有生命。Whereveryougo,youmustobeythelaw.无论你到哪里，你都必须遵守法律。地点状语从句vs.

定语从句where引导定语从句时，从句前应有一个表示地点的名词作先行词；状语从句前则无需先行词。Gobackwhereyoucamefrom.(地点状语从句）你从何处来到何处去。Gobacktothevillagewhereyoucamefrom.(定语从句，修饰village)回到你来的那个村子里去。八、地点状语从句18九、方式状语从句连接词：as（正如，像……）,asif,asthough（好像）asif/though从句所表示的情况是事实或有很大可能用陈述语气，是主观想象或与事实相反时用虚拟语气。例句：Itlooksasifitisgoingtorain.(非虚拟语气)Hetalkedasifhehadseentheaccident.(虚拟语气)Theydon’tknowifit_____________(rain)tomorrow.Ifit________________(notrain),they’llgocamping.2.AssoonasIgettotheairport,I___________(phone)youtopickmeup.3.While my wife __________(read) the newspaper, I was watching TV.4.They_____________(notsee)eachothersince1999.5.Thelocalguidespokeas_____________(clear)asshecouldtomakethevisitorsunderstandher.willraindoesn’trainwillphonewasreadinghaven’tseenclearly6.只要我们竭尽全力，父母就会对我们很满意。(aslongas)

7.虽然她很忙，她还坚持自学英语。 (keepondoingsth.)

8.如果Tom考试不及格，他就没有机会上高中了。(havethechance)9.请打开窗以便我们能有新鲜的空气。(sothat)Our parents will be pleased with usaslongas we try our best. Althoughshewasbusy,she kept on learning English by herself.Tomwon’thavethechancetogotothehighschoolifhefailstheexams.Pleaseopenthewindowsothatwecanhavefreshair.连词1.并列连词表并列关系：and,both…and…,neither…nor（既不……也不……）,notonly…butalso…表转折关系：but,yet,however,while（然而）表选择关系：or,either…or…(不是……就是……;或者……或者……)表因果关系：for,so2.从属连词(1)引导宾语从句：that,if,whether(在句中不做任何成分）(2)引导状语从句(前面已讲)就近原则haven’tseenarrivescrossingwerehavingwillraindoesn’trainweresingingpassedwassearchingtoshaketoreadgoturningwilltellwascookinghadlearnedcouldhearwouldIhaveworkedatthisschoolsinceIgraduatedfromQingdaoUniversity.Whenwedon’tknowhowtosolveproblems,