英語語法復習狀語從句（全國一等獎）

狀語從句12主句從句連詞Studentsweretalkingtheteachercamein.when狀語從句狀語從句指用作狀語，起副詞作用的從句。3狀語從句分類結(jié)果狀語從句地點狀語從句目的狀語從句條件狀語從句時間狀語從句原因狀語從句讓步狀語從句比較狀語從句方式狀語從句4時間狀語從句whenwhen既可以指“時間點”，與瞬間動詞連用；也可以指“時間段”，與延續(xù)性動詞連用（=while）。Whenhecamein,hismotherwascooking.When(While)wewereatschool,wewenttothelibraryeveryday.whilewhile表示時間段，因此，while從句的謂語動詞要用延續(xù)性動詞，另外while還可以表示對比。Canyouhelpmetosendaletterwhileyouareinthepostoffice.Tom'sbrotherwasplayingthecomputergameswhileTomwasstudyinghard.5asas著重強調(diào)主句動作與從句動作同時發(fā)生，有“隨著……”或“一邊……一邊……”之意。Asyougetolder,yougetmoreknowledge.Ashewalkedalongthelake,hesanghappily.6beforebefore表示“在……之前”，表示主句的動作發(fā)生在從句的動作之前。Hehadbeenacookbeforehewenttocollege.IwillgoouttoplaybasketballwithyouafterIfinishmyhomework.afterafter表示“在……之后”，表示主句的動作發(fā)生在從句的動作之后。7sincesince引導時間狀語從句，表示主句的動作，從過去的某一點時間持續(xù)到現(xiàn)在，從句時態(tài)常用一般過去時，主句的時態(tài)一般用現(xiàn)在完成時。Hehasnotwrittentomesincehegraduatedfromhighschool.Wehaveknowneachothersincewecametotheschooltwoyearsago.8until/till當主句的謂語是延續(xù)性動詞前時，主句常用肯定形式，表示“直到……”；當主句的謂語是非延續(xù)性動詞前時，主句常用否定形式，表示“直到……才”。I'llstayhereuntil/tillyoucomeback.Ididn'tgotobeduntil/tilltheTVprogramwasover.9assoonasassoonas意為“一……就……”，表示從句的動作一發(fā)生，主句的動作馬上就發(fā)生，遵守“主將從現(xiàn)”的原則。AssoonasIarrive,Iwillcallyou.Hewillbehappyassoonashethinksofhischildhood.Onceyoustart,youwillnevergiveup.onceonce意為“一旦……就……”。10地點狀語從句wherewhere引導地點狀語從句，表示“在……地方”。Putthebookbackwhereitis.11原因狀語從句because表示直接的原因，語氣最強，常用來回答由why引導的問句。—Whydidn'tyougothere?—BecauseIdidn'twantto.since往往表示眾所周知的原因，常譯為“既然，由于”，since引導的從句通常位于主句之前。Sinceyoucome,waitformoretimeplease.sincebecause和so不能同時在一個句子中出現(xiàn),兩者只能出現(xiàn)其一。BecausehespendslittletimelearningEnglish,hefailsintheexam.=HespendslittletimelearningEnglish,sohefailsintheexam.

12asas表示原因時，語氣比because和since都弱，引導的從句位于主句前后均可。Asshehasnocar,shecan'tgetthereeasily.Istoppedtorest,forIwasverytired.forfor是并列連詞，語氣最弱，表示對前面的分句加以解釋或表示推斷出的原因，多用于書面語中。for所連接的分句只能位于句尾，前面用逗號分開。13條件狀語從句ifif引導條件狀語從句，表示“如果”。Whatshallwedoifitsnowstomorrow?Don'tleavehereunlessItellyouto.unlessunless引導條件狀語從句，表示“除非、如果不”相當于ifnot。主將從現(xiàn)14aslongasaslongas引導條件狀語從句，表示“只要”。Iwillgothereaslongasheinvitesme.“祈使句+and/or+陳述句”結(jié)構(gòu)相當于一個帶有條件狀語從句的復合句。Hurryup,oryou'llbelate.=Ifyoudon'thurryup,you'llbelate.Studyhardandyouwillpasstheexam.=Ifyoustudyhard,youwillpasstheexam.15目的狀語從句sothat/inorderthat目的狀語從句通常由sothat,inorderthat引導，表示“為了、以便”,通常位于主句之后，從句中多用can,will,may,should等情態(tài)動詞。Hestudieshardsothathecouldfindagoodjobinthefuture.Weusedthecomputerinorderthatwemightsavetime.16結(jié)果狀語從句如此……以致于sucha/anadj可數(shù)名詞單數(shù)adj可數(shù)名詞復數(shù)adj不可數(shù)名詞that從句Kathyissuchalovelygirlthatwealllikeher.Theseweresuchdifficultquestionsthatnoneofuscouldanswerthem.Wehadsuchterribleweatherthatwecouldn'tfinishtheworkontime.17so形容詞/副詞adj可數(shù)名詞單數(shù)many/few可數(shù)名詞復數(shù)that從句Kathyissolovelythatweallliketobewithher.Kathyissolovelyagirlthatweallliketobewithher.Hemadesomanymistakesthathefailedtheexamonceagain.There'ssolittletimeleftthatwehavetospeedup.a/anmuch/little不可數(shù)名詞18讓步狀語從句though/althoughthough和although意義一樣，都作“雖然，即使”講，表示讓步，一般情況下可互換使用。但although語氣較強，多置于句首。Although/Thoughheisveryold,heisquitestrong.though/although引導讓步狀語從句時，主句中不可出現(xiàn)but，但可以用yet，still等。Thoughitrainedhardoutside,(yet/still)heinsistedongoingout.=Itrainedhardoutside,butheinsistedongoingout.

19evenif/eventhough這兩個短語表示語氣更強的讓步，意為“即使”。Wewillmakeatripeventhough/eveniftheweatherisbad.20“疑問詞+-ever”或者“nomatter+疑問詞”“nomatter+疑問詞”或“疑問詞-ever”的含義為“無論……都……；不管……都……”。Whatever/Nomatterwhathappens,hewillhelpyou.Whenever/Nomatterwhenshecomes,shebringsafriend.However/Nomatterhowcolditis,shealwaysgoesswimming.21比較狀語從句than/as...as比較狀語從句由than和as...as引導。Thehouseisthreetimesasbigasours.ThepianoismoreexpensivethanIexpected.22方式狀語從句asas引導的方式狀語從句通常位于主句后，意思是“正如、就像。WhenyouareinRome,doasRomansdo.asif和asthough引導方式狀語從句，意為"仿佛……似的"，"好像……似的"。Itlooksasif/thoughitisgoingtorainsoon.asif/asthough23沙場大點兵1.Readitaloud_____theclasscanhearyou.A.sothat B.if

C.when D.although2.Itisabouttenyears_____Imetyoulast.A.since B.for

C.when D.as3._____theworkersweretired,theykeptbuildingthebridge.A.When B.Because

C.Though D.As4.IlearnedalittleRussian_____Iwasatmiddleschool.A.though B.although

C.asif D.when5.Shewas_____tired_____shecouldnotmoveaninch.A.so,that B.such,that C.very,that D.so,as246.Wedidn'tgohome_____wefinishedthework.A.since B.until C.because D.though7.You'llmissthetrain______youhurryup.A.unless B.as C.if D.until8.YoumayarriveinBeijingearly___youdon'tmindtakingthenighttrain.A.that B.though C.unless