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Welcometoourclass!Whatisthecatdoing?•Itissleeping.Pairwork:A:Whatare/is...doingnow?B:They/He/Sheare/is...now.现在进行时一、用法1.现在进行时表示现在（说话瞬间）正在进行或发生的动作。eg:①Iamwritingaletter.我正在写信。②HeiswatchingTVnow.现在他正在看电视。③Theyarereading.他们正在读书。2.现在进行时也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。Weareworkingonafarmthesedays．Iamwritingabookthismonth．二、现在进行时的标志词现在进行时一般与now，thesedays，look，listen，atthistime（这时，此时）,atthemoment（此刻）等连用。eg:①Heisplayingbasketballnow.②Thestudentsarehelpingthefarmersthesedays.这些天学生们正在帮助农民。③Look!Theyaredancingintheclassroom.看！他们正在教室里跳舞。三、现在进行时的形式现在进行时的形式：be+动词的现在分词（即动词加ing）。（be+Ving)四、现在进行时的句型（1）肯定句句型：主语+be+动词的现在分词。例如：①Weareplayingsoccernow．现在我们正在踢足球。（2）否定句句型：主语+be+not+动词的现在分词。(isnot=isn't,arenot=aren't)。①Wearen'tplayingsoccernow．现在我们没有在踢足球。（3）一般疑问句句型：Be+主语+动词的现在分词。eg:Areyouplayingsoccernow?现在你们正在踢足球吗？肯定回答：Yes,weare.否定回答：No,wearen't.五、现在分词的构成规则1.直接在动词后加ing.(look,go,visit)2.以不发音字母e结尾的动词，去e+ing.(come,have,make,take,dance,arrive,hope,write,live,leave,move,give,close,invite,drive,practice.)3.以重读闭音节结尾的动词，末尾只有一个辅音字母，双写该辅音字母，再加ing.(get,forget,stop,swim,get,sit,put,run,begin,cut,dig,prefer,refer)4.以辅音字母+y结尾的动词，直接+ing.(study,fly,cry,carry.)5.以ie结尾的重读开音节动词，改ie为y+ing.(die---dying,tie---tying,lie---lying.)课堂练习•1、填写出下列进行时态句子的正确动词形式。•1）Ibasketballwithmyfriendnow.(play)•2)Theywaternow.(drink)•3)listen!Thebirdonthetree.(sing)•4)Look!Heontheplayground.(run)•5)Thedoginthisriver.(swim)•6)Welunchnow.(have)•7)yourfather(watch)TVnow?•8)Thegirlwithherdog(sit)onthesofa.isplayingaredrinkingissingingisrunningisswimmingarehavingIswatchingsitting二、用现在进行时态改写下列句子。1.Shesitsunderthetree.2.Ieatahamburgerandsomefruit.3.Theycleantheclassroom.Sheissittingunderthetree.Iameatingahamburgerandsomefruit.Theyarecleaningtheclassroom.