2018小升初英语总复习第四章动词和时态第三节现在进行时ppt课件

第四章动词和时态,第三节现在进行时,知识梳理,一、现在进行时的用法现在进行时表示现在正在进行或正在发生的动作，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。句型结构是：be+ving形式（现在分词）。标志时间词：now，look，listen，overthere，lookat，Its+时间等。,二、现在分词的变化规则1一般情况下，在动词词尾加ing。如：gogoing,playplaying,eateating2.以不发音的字母e结尾的动词，去e再加ing。如：writewriting,comecoming,taketaking3.以重读闭音节结尾，且词尾只有一个辅音字母的动词，双写最后这个辅音字母再加ing。如：runrunning,swimswimming,shopshopping4.以ie结尾的动词，将ie改为y,再加ing。如：diedying,lielying,三、现在进行时的句型结构1肯定句：主语+be动词(am/are/is)+ving+其他.如：Iamwashingmyhandsnow.Look！Jackislisteningtomusic.Tomandhisbrotheraredoingtheirhomework.Itisnineoclock.Thechildrenarehavingclass.2.否定句：主语+be动词(am/are/is)+not+ving+其他.如：Iamnot(Imnot)washingmyhandsnow.Thechildrenarenot(arent)playingoverthere.Itssixpastten.Tomisnot(isnt)havingdinner.,3.一般疑问句：Is/Are/Am+主语+ving+其他？如：AreyouwatchingTVnow?Yes,Iam./No,Iamnot.Isthegirlplayingthepiano?Yes,sheis./No,sheisnt.Arethechildrenswimmingintheriver?Yes,theyare./No,theyarent.4.特殊疑问句：特殊疑问词+一般疑问句？如：IamwatchingTVnow.Whatareyoudoingnow?UncleWangisdrinkingteainthelivingroom.WhereisUncleWangdrinkingtea?,考点精析,考点1考查现在进行时的用法【例1】用所给动词的适当形式填空。1.She(draw)amapnow.2.Listen!Theboys(sing).解析:本题考查填动词的适当形式，必须要弄清楚句子的时态。第1小题中的时间词now，第2小题中的Listen都表示动作正在发生，都要用现在进行时；同时，注意ving之前一定要根据主语的形式加上相应的be动词。答案：1.isdrawing2.aresinging,举一反三1.写出下列动词的现在分词形式。(1)sing_(2)dance_(3)write_(4)shop_(5)put_(6)die_2.单项填空。()(1)MumandIhouseworknow.A.doingB.amdoingC.aredoing()(2)Allthepeopleafootballmatch.Everybodyisexcited.A.watchB.iswatchingC.arewatching()(3)theytheirstampsatthecorner？A.Does；showB.Are；showingC.Do；showing,dying,singing,dancing,writing,shopping,putting,C,C,B,考点2考查有关现在进行时句子的句型转换【例2】按要求改写下列句子。1.Sarahisansweringthephone.(改为否定句)_2.Theyareridingabike.(就画线部分提问)_3.Shecleansherdeskintheclassroom.（改为现在进行时）_,解析:本题考查现在进行时的句型转换，要以be动词为中心进行变化。第1小题改否定句，只要在be动词之后加not;第2小题是对进行时状态下的活动提问，用“Whatdoing?”，注意be动词要与主语的数保持一致。第3小题要将原句中的谓语动词换成“is+现在分词”，因为这才是现在进行时的正确形式。答案：1.Sarahisnot(isnt)answeringthephone.2.Whataretheydoing？3.Sheiscleaningherdeskintheclassroom.,举一反三按要求改写下列句子。1.Kennyoftenplaystheguitarontheweekend.(用now改写句子)_2.WearewatchingcartoonsonTVnow.(改为否定句)_3.Mygrandpaiswritingaletter.(就画线部分提问)_4.我正在和父母亲谈论我的生日。（汉译英）_,Kennyisplayingtheguitarnow.,WearentwatchingcartoonsonTVnow.,Whatisyourgrandpadoing?,Imtalkingaboutmybirthdaywithmyparents.,过关检测,一、写出下列动词的现在分词形式。1.play_2.look_3.study_4.watch_5.fight_6.wait_7.sing_8.paint_9.go_10.wash_11.cut_12.run_,playing,looking,studying,watching,fighting,waiting,singing,painting,going,washing,cutting,running,13.sit_14.begin_15.put_16.get_17.shop_18.swim_19.take_20.make_21.write_,sitting,beginning,putting,getting,shopping,swimming,taking,making,writing,二、单项填空。()1.Look！I_aredhatnow.A.wearingB.amwearingC.iswearing()2.Tom_TVintheroomnow.A.arewatchingB.iswatchingC.iswatch()3.Look!Jane_housework.A.isdoB.doingC.isdoing()4.Someofthegirls_.A.singB.issingingC.aresinging,B,B,C,C,()5.Hes_basketballnow.A.playB.isplayingC.playing()6.They_birdsintheskynow.A.arelookingatB.lookatC.lookingat()7.“Donttalkinclass，”theteacher_.A.isspeakingB.issayingC.says()8._you_ballgameswithyourfriendsnow?A.Is;playingB.Are;playingC.Do;play,C,A,C,B,三、用所给动词的适当形式填空。1.Mymum_(cook)dinnerforusnow.2.Sam_(notlistento)English.Heislisteningtomusic.3._they_(sleep)now?Yes,theyare.4.Listen!Who_(read)English?5.Lookatthoseoldpeople.Theyare_(sing)and_(dance).6.Thechildren_(swim)inthelakenow.7.Look!KateandMary_(clean)thewindowsnow.8.Joanlikes_(paint)verymuch.,iscooking,isntlisteningto,Are,sleeping,isreading,singing,dancing,areswimming,arecleaning,painting,四、按要求改写下列句子。1.Theyaremakingdumplings.(改为一般疑问句)_2.Tomislisteningtotheteacher.(改为否定句)_3.Heisdrinkingteaunderthetree.(就画线部分提问)_,Aretheymakingdumplings?,Tomisntlisteningtotheteacher.,Whatishedoingunderthetree?,4.IsKenclimbingthetreeinthegarden?(作肯定回答)_5.Tomisreadingabookinhisroom.(就画线部分提问)_6.Iamwaitingforabus.(就画线部分提问)_,Yes,heis.