英语人教版八年级上册if 的用法.ppt

语法课：if引导条件状语从句,ByPanyan,重难点；:1.if引导的条件状语从句。2.学习谈论因果关系.,Letsworktogether.Comeonbaby!,Eachgrouphasdifferenttasks.Tryyourbesttofinishthetaskontime.,Taskone.,ListentotheEnglishsongcarefullyandsayatleastthreesentencesinthesong.Ifyoucansing,youwillgettwoscores.,TasktwoDiscusstheproblemingroupandfindatleast3kindsofwaystosolvethisproblem.,Q:Ifwecanthearwhatshesings,whatshallwedo?A:Ifwearenotgoodatlistening,weshall/will/canLetslistentoitagainandagain.Thensaymoresentencesinthesong.,Ifamanoncesucceeds,hiswisdom(智商)willdropdeeply,andifheoncefails,hewillgetmuchcleverer.-ByShiYuzhu,TaskThreeIfwemeetproblems,dontworry.Justtrytoworkhard.Accordingtothepicturebesideandwritedownthesentences.,(中文提示)努力学习，我们就能成功。_,and_,or_.Ifwe_hard,wewillsucceed.A.wontworkB.dontworkC.workButifwe_hard,wellfail/wontsucceed.A.wontworkB.dontworkC.work,Takenotes!,Workhard,Wellsucceed.,Workhard,Wellfail.,C,B,归纳总结,if，意为_,可以用来引导_.可以主句在前，从句在后。也可以从句在前主句在后，这时需要用_隔开。在时态上，如果主句的时态为将来时态，从句必须用_,也就是我们常说的_.,如果,条件状语从句,逗号,一般现在时,主将从现,TaskFourWriteyourownsentenceswiththefollowingstructure.,If_,_.,TaskFiveMakeadialogueinpairs.,S1:Whatwillhappenifyoufail/succeedinthefinalexam?S2:IfIfail/dontsucceedintheexam,_will_.S3:IfIsucceedintheexam,_will_.,Failureismotherofsuccess.,Listentoeachotherandanswerthequestions.,Ifhe/shefails/doesntsucceedintheexam,_will_.Ifhe/shesucceedsintheexam,_will_.,TaskSixCompletethefollowingpassage.,Ilike_soccer.SoIenjoywatchingthe2014FIFAWorldCup,too.Iwonderifit_thisweekend._it_rain,I_gotoDaTianwanstadiumtoplaysoccerwithmyfriend.Butifit_,IwillstayathomeandenjoytheFIFAWorldCupinBrazil.,playing,willrain,If,doesnt,Will/shall,rains,HomeworkAccordingtothepicturetowriteapassagewi