【教案】初中英语状语从句教案及练习讲解 9页

新课标初中英语状语从句教案及精品练习讲解掌握状语从句的作用。▲掌握状语从句的意义。▲掌握各种不同类型的状语从句。【知识要点】状语从句在句中作状语，修饰句中的动词、形容词或副词等。状语从句由从属连词作关联词，从属连词在从句中不充当句子成分。状语从句在主句之前，一般要用逗号分开，朗读时用升调。状语从句在主句之后，一般不用逗号，朗读时用降调。状语从句按其意义和作用可分为时间、条件、原因、让步、目的、结果、方式、比较、地点等类型。1.时间状语从句(1)常用的连词有when（当⋯⋯时候），while（当⋯⋯时候）,before(在⋯⋯以前)，after（在⋯⋯以后），until(till)（直到⋯⋯为止）,since（自从⋯⋯以来）,assoonas（一⋯⋯就）等。(2)时间状语从句中一般不用将来时，若谈论将来的事情，往往用一般现在时代替：如：I'llgoonwiththeworkwhenI________(come)backtomorrow.Assoonashe___________(finish)thework,hewillcometoseeme..2.条件状语从句常由if(假如、如果)Nomatter(不管)来引导，如果主句是一般精品学习资料可选择pdf第1页，共9页-----------------------\n将来时，从句往往用一般现在时来表示将来。如：I'llgoforapicnicifit_____(be)fine.Nomatterwhathe________(say)，Iwon'tbelievehim，3.原因状语从句(1)常由because,since,as引导。(2)because表示直接的原因，着重点在从句，用于回答why,语气最强。because不能与so连用。since一般表示对方已知的，无须加以说明的既成事实的理由，全句中心在主句，语气比because弱，常译为“既然”。as表示十分明显的原因，一般说明因果关系，着重点在主句，语气较弱。常译为“由于”。for是个并列连词，只能放在另一个并列分句后面，表示一种推理或解释，或用作附加说明，而不是指理由或原因，语气最弱，一般不放在句首，常译成“因为”。如：______itisraininghard,wewon'tgohiking._______youareill,I'llgoalone.Ican'tgotoschool________Iamill.Youhaven'tmethim,______hedidn'tcomehere.4.结果状语从句一般由so...that,such...that引导，so与such的区别：(1)so＋形容词＋a/an＋名词(2)such＋a/an＋形容词＋名词（3）such＋形容词＋不可精品学习资料可选择pdf第2页，共9页-----------------------\n数名词/可数名词复数(4)so＋many/much/few/little＋形容词＋名词如：It's_______aheavyboxthatnobodycanmoveit.It's______heavyaboxthatnobodycanmoveit.Thereare_________manybooksinthelibrary5.目的状语从句往往由sothat,引导，如：I'llspeakslowly_________youcanunderstandme.6.比较状语从句常由as...as,than,notas/so...as等引导。比较从句部分常是省略句，如：I'mtaller______he(is).Scienceisnot_____popular_____English.7.让步状语从句由though或although(虽然)等引导，但不能与but同时连用，改错：Thoughitsnowedheavily,buttheykeptonworking.1.方式状语从句常用asif,asthough（好像）引导。如：Heactedasif(though)nothinghadhappened.2.地点状语从句常用where,wherever引导。精品学习资料可选择pdf第3页，共9页-----------------------\n如：I'llgowhereworkishard.【典型例题解析】例1Thequestionwas_______difficultthatnobodycouldanswer______.A.very...themB.very...itC.so...themD.so...it解析因为句中有that,所以前面用so,构成so⋯⋯that从句，而question是单数，用代词it，故选D。例2Itwas______thathehadtoaskforhelp.A.suchbigworkB.sobigaworkC.soabigworkD.suchbigjob解析work是不可数名词，指工作或工程，故选A。例3Hewon'tbelieveit________heseesitwithhisowneyes.A.whenB.afterC.untilD.assoonas解析此句是not⋯⋯until,直到⋯⋯才”。故答案选“C。例4I'llgo_____withyou_______nextSunday.A.hunting...whenIwillhavetimeB.tohunt...untilI'mfreeC.boating...ifIhavenothingtodoD.toboat...asIwillnotbesobusy精品学习资料可选择pdf第4页，共9页-----------------------\n解析去打猎、划船常用gohunting,goboating，所以应在A和C中选择，又因为when和if在句中引导状语从句时，要用一般现在时表示将来，故选C。例5It'salmostthreeyears_________Ilastsawher.A.sinceB.whenC.thatD.after解析本句表示自从上次见到她几乎有三年了，句型It's+时间段+since从句(过去时)，故选A。【选讲例题】用所给动词适当形式填空例6I'llgotoShanghaiifI_______(have)timetomorrow.AndIwanttoknowifyou________(have)timetogowithme.解析第一句中if是“假如”的意思引导状语从句，要用一般现在时表示将来时，第二句中if是“是否”的意思，引导宾语从句，仍用将来时。例7—Couldyoutellmewhenhe________(return)homenextweek?—Sorry,Ican't.ButIwillringyouupwhenhe_________(return)home.解析第一句中的when意思是“什么时候”，引导宾语从句用将来时态，第二句中的when是“当⋯⋯时”的意思，引导时间状语从句，用一般现在时表示将来。精品学习资料可选择pdf第5页，共9页-----------------------\n【课内追踪练习】单项选择()1.Jackwastired_______heplayedtennisallafternoon.A.ifB.assoonasC.becauseD.before()2____hefinishedhiswork,helefthurriedly.A.AssoonasB.InorderthatC.UntilDSince()3._____therainhasstopped,let'sstartagain.A.ForB.BecauseC.SinceDWhat()4.Hestartedearly______hecouldgettherebeforenine.A.sothatB.becauseC.soastoD.inorderto()5.Theywaited____itwasdarkoutside.A.sinceB.untilC.soD.while【复习小结】1.牢记引导各类状语从句的连词及它们的不同意义和作用。2.注意区别when（什么时侯）引导宾语从句、（当⋯⋯时）引导状语从句；if（是否）引导宾语从句、（假如）引导条件状语从句；so⋯⋯that、sothat、such⋯⋯that3.注意用一般现在时表示将来的几种句式。精品学习资料可选择pdf第6页，共9页-----------------------\n【巩固练习】一、单项选择()6.Mikeis_____boythatwealllikehim.A.agoodsoB.sogoodaC.asuchgoodD.suchgooda()7.Itwas______thattheywantedtogoforapicnicinthecountry.A.suchafineweatherB.sofineaweatherC.afineweathersoD.suchfineweather()8.Shipsare______thanplanesthatfewpeopletakethemonbusiness.A.toomuchslowerB.verymuchslowerC.somuchslowerD.muchmoreslower()9.Theyhadstartedharvestingrice______therainbegan.A.afterB.beforeC.sinceD.as二、在下列各句中填入适当的状语从句连词，使句子意思完整、通顺10Iwilltellyouthesecret_____youdon'ttellanyoneelseaboutit.11Maryalwaystakesaseatinthefirstrow____________shecanhearbetter.精品学习资料可选择pdf第7页，共9页-----------------------\n12.Wedidn'tnoticeanythingwrongwiththecomputer_________westartedusingit.13.Theyoungdoctorwasabitworried___________itwashisfirsttimetooperateonapatient.14Theelephanthas______strongabody_______itcandoheavyworkforpeople.15.Itis_______adifficultproblem_______nobodycanworkitout.三、句型转换16Useyourhead,thenyou'llfindaway._____youuseyourhead,you'llfindaway.17Iwenttobedaftermyfathercamebackhomeyesterday.I________gotobed______myfathercamebackhomeyesterday.18Theislandissobeautifulthatitcanattractlargenumbersofpeople.Theislandisbeautiful__________attractlargenumbersofpeople.19MydressismoreexpensivethanLily's.Lily'sdressis________expensiveasmine.精品学习资料可选择pdf第8页，共9页-----------------------\n20Mysisterissoyoungthatshecan’tgotoschool.Mysisteris_____young_______gotoschool.精品学习资料可选择pdf第9页，共9页-----------------------