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Wearehavingaclass.WearehavinganEnglishclass.Whatarewedoingnow?Whatclassarewehavingnow?现在进行时Shereadisingnow.Heplayfootballisingnow.Hedohishomeworkisingnow.Heeatisingnow.一、概念（用法）1.表示现在（说话瞬间）正在进行或发生的动作。如：HeiswatchingTVnow.现在他正在看电视。2.还可以表示当前一段时间内的活动或现阶段正在进行的动作。如：I’mreadingabookthisweek.这一周我在看一本书。二、构成动词现在分词助动词be随人称变为am,is,arebe+动词-ing三、动词的现在分词变化规则1.do--watch--read--eat--play--2.dance--write--3.run--swim--doingwatchingreadingeatingplayingrunningswimmingdancingwriting现在分词的变化规则一般在动词原形后+ingdoaskdoingasking以不发音的e结尾的，去e，+ingwritetakedancewritingtakingdancing重读闭音节结尾，末尾只有一个辅音字母的，双写这一字母，再+inggetrunswimputgettingrunningswimmingputting1.音节是读音的基本单位。一般来说，一个元音音素可构成一个音节，一个元音音素和一个或几个辅音音素结合也可以构成一个音节。如：congratulation祝贺[kəngrætʃuleɪʃn]2.音节按读音可以分为开音节和闭音节。1.闭音节：指元音字母后面有辅音字母（辅音字母r除外）构成的音节，如：leg,cross2.重读闭音节：指在双音节或多音节词中有一个发音特别响亮的音节，叫重读音节，用重音符号“‘”标于相应位置，其他音节为非重读音节，如begin/bi’gin/;单音节词作重读处理，但不标重音符号，如：stop/stɒp/.askingdrawingsinginghavingseeingcleaningexercisingputtingaskdrawsinghaveseecleanexerciseputListen!Thebirdissinging.theywatchTVingnow.areLook,Theycleanareingnow.Ishedoinghishomework?Yes,heis.Ishelisteningtotheteacher?No,heisn’t.Heissleeping.Aretheyeatinghamburgers?No,theyaren’t.Theyareeatingapples.Isshetakingashower?No,sheisn’t.Sheiswashingthedishes.Sheisnotmakingbreakfast.Sheiswashingthedishes.Whatisshedoing?Whataretheydoing?Theyareplayingbasketball.Theyarenotplayingsoccer.四、三种句式1.肯定句：主语+be+动词ing+其他。2.疑问句：Be+主语+动词ing+其他？Yes,主语+be。/No,主语+be+not。3.否定句：主语+be+not+动词ing+其他。Let’splayagame:It/he/sheis+v-ing….Theyare+v-ing….Theyaredancing.Whataretheydoingnow?Whatisthedogdoing?Itiseating.What’sshedoing?Issheeating?Yes,sheis.Sheisrunning.No,sheisn’t.Issherunning?Isshejumping（跳）?No,sheisn’t.Whatisthegirldoing?Isshedoingherhomework?Oh,sheiseating.No,sheisn’t.Isshedrawing?No,sheisn’t.AretheywatchingTV?Whataretheydoing?No,theyaren’t.Aretheyplayingthedrums?Yes,theyare.练一练用括号中动词的适当形式填空：1.Myparents___________（watch）TVnow.2.Look.Threeboys__________（run）.3.What_____yourmother_____（do）now?4._____yourdog_______now?（sleep）5.--___you_______（listen）tomusic?--Yes,Iam.arewatchingarerunningisdoingIssleepingArelistening•选择填空：（）1.Who______intheroomnow?A.singingB.singC.issinging（2.It’snineten.They______amusicclass.A.haveB.havingC.arehaving（）3.Listen!Theboy________.A.cryingB.iscryingC.cries（）4.Don’ttalkhere.Grandparents______.A.sleepB.issleepingC.aresleeping（）5.Istheman_______milk?A.drinksB.drinkC.drinking