初中现在进行时复习课件新

现在进行时教学重、难点：1.现在进行时的的巩固及运用。2.现在分词的构成。Shereadisingnow.Heeatisingnow.Listen!Thebirdissinging.Look!Theboyisplaysoccer.ingTheywatchTVareingnow.Themanrunisningnow.Theboyswimismingnow.Theydancearenow.ing知识要点：一.现在进行时的定义:表示现在正在做的动作Eg:JennyiswatchingTVnow.Iamwriting.二.结构:现在进行时的结构为:be+doingbe由句子的主语决定A:IamwatchingTVathome.B:Daveiscleaningthefloor.C:Thestudentsareseeingamovie.三.现在分词的构成:(1)直接加—ing,如：read-------reading;play-------playing;(2)以不发音字母“e”结尾，去“e”后加－ing,如：write-----writing;have-----having;（3）双写末尾辅音字母，再加－ing,如：put------puttingsit-------sittingrun------running铃声响，课开始学生坐放好书得知识放学后学生跑让我们去游泳别忘记做功课beginsitputgetrunletswimforget口诀写出下列词的现在分词：1.make——2.open———3.clean——4.carry———5.run———6.begin———7.see———8.get————9.stop———10.play———Exercises:makingopeningcleaningcarryingbeginningseeinggettingstoppingplayingrunningrunning四.现在进行时的形式转换：肯定句变为否定句时，在be动词+not.Eg:SteveistalkingtohisteacherSteveisn’ttalkingtohisteacher.Thechildrenareeatingsomeapplesatmyhome.Thechildrenaren’teatinganyapplesatmyhome.肯定句变为一般疑问句,be提到句首。Eg:Steveistalkingtohisteacher.Iamsinging.IsStevetalkingtohisteacher?Areyousinging?五.现在进行时的标志词：（1）nowMr.Wuiswaitingforusnow.(2)句中有“Listen！”“Look!”等提示语Eg:Listen!Theteachersaretalkingintheoffice.