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1专题十现在进行时1、概念表示正在发生的事情或动作，常和now，look，listen连用。如：Wearelisteningtomusicnow.我们现在正在听音乐。Listen!Heisplayingthepiano.听！他正在弹钢琴。2、句子结构1)．be+动词现在分词（即：动词-ing形式），be+doing是一个整体，不能分开。2)．be随着主语的变化而变化，doing的变化规则根据现在分词的变化规律来定。3、动词现在分词的构成规律1)．一般情况下,在动词原形后直接加-ing；如：work→workingdo→doingplay→playing2)．以不发音字母e结尾的动词，先去掉e，再加-ing；如：dance→dancingcome→coming3)．在重读闭音节（即：辅音＋元音＋辅音）的动词中，中间只有一个元音字母，词尾只有一个辅音字母，要先双写末尾的辅音字母，再加-ing；如：get→gettingshop→shoppingrun→runningswim→swimming4)．以ie结尾的重读闭音节词，将ie改成y再加ing。如：lie→lyingdie→dying4、现在进行时的各种句式变化肯定句：主语+be+现在分词V-ing(+其他)例如：I’mdoingmyhomeworknow.否定句：主语+be+not+动词-ing+其他.例如：I’mnotdoingmyhomeworknow.一般疑问句：Be+主语+动词-ing+其他?例如：Areyoudoingyourhomeworknow?Yes,Iam.No,I’mnot.特殊疑问句：特殊疑问词+be+主语+动词-ing+其他?例如:Whatareyoudoingnow?◆课堂练习：一、写出下列动词的现在分词。1.play11.fly21.run2.read12.write22.put3.see13.dance23.get4.clean14.live24.sit5.study15.come25.cut6.go16.make26.swim7.sing17.like27.stop8.buy18.have28.begin9.say19.love29.shop10.eat20.take30.lie二、用所给的动词的正确形式填空。1.Theboy_________________(draw)apicturenow.2．I_________(read)Englishnow.3．He_____________(go)totheparknow.4.Mymother_________________(cook)somenicefoodnow.5.They____________(not,water)theflowersnow.6.We_____________(have)suppernow.7.Mymother__________________(clean)theroomnow.8．What_____you______(do)now?9．Listen!Somegirls_______________(sing)intheclassroom.210．Look!They_______________(have)anEnglishlesson.三、选择。（）1.----Isyourmumcookdinner?----Yes,she.A.isB.areC.am（）2.----Areyouspeakingtoyourteacher?----Yes,.A.I’mB.IamC.I’mnot（）3.yourclassmatesplayinggames?A.AmB.AreC.Is（）4.Heclimbingmountains.A.amnotB.isn’tC.aren’t（）5.Iabooknow.A.amreadingB.isreadingC.reading（）6.Heclothesnow.A.iswashingB.arewashingC.washing（）7.WeanEnglishclassnow.A.havingB.areC.arehaving（）8.Sallypictures.A.isdrawB.isdrawingC.drawing（）9.MikeandJohnfootballnow.A.playingB.isplayingC.areplaying（）10.Look,itoutside.A.snowingB.isplayingC.areplaying（）11.Listen!Theboysan“ABC”song.A.singB.aresingingC.aresing（）12.Look,musicteacher.A.isdanceB.dancesC.isdancing（）13.Tom’sdogafteracat.A.isrunningB.isrunC.isruning（）14.Look,Jackabike.A.ridesB.ridingC.isriding（）15.MaryandMayexerciseunderthetreenow.A.takeB.aretakingC.taking四、句型转换：1．Theyaredoinghousework.(改成一般疑问句和否定句)_______________________________________________________________________________________________________________________2．I’mplayingthefootballintheplayground.(对划线部分进行提问)_________________________________________________________________3．MikeandJohnarewatchingTVnow.(对划线部分进行提问)_________________________________________________________________4．Lisaisplayingcomputergameinthelivingroom.（用what对划线部分进行提问）_________________________________________________________________5．Lisaisplayingcomputergameinthelivingroom.（用where划线部分进行提问）_________________________________________________________________