初中一般现在时和现在进行时讲解、练习及答案

一般现在时和现在进行时一般现在时用法：1.现阶段经常性习惯性动作或存在的状态Ileavehomeforschoolat7everymorning.2.客观真理,客观存在，科学事实Theearthmovesaroundthesun.ShanghailiesintheeastofChina.3．在格言或警句中Pridegoesbeforeafall.骄者必败。常用时间状语：sometimes,often,everyday,usually,always等构成：1.动词用原形Ilikeit.2.当主语是第三人称单数时，动词要加-s(-es)Shelikesit.3.be动词用am，is,areIamateacher.Heisaboy.Theyaregirls.否定形式：1.don’t+动词原形Idon’tlikeit.Theydon’tlikeit.2.当主语是第三人称单数时，则为doesn’t+动词原形Hedoesn’tlikeit.一般疑问句：把do或does放在主语的前面，后面动词用原形Doyoulikeit?DoesAnnlikeit?注意：动词三单的变化规则【巩固练习】写出下列动词的第三人称单数drink________stay________look_________have_______do_________pass_______carry________come________watch______brush________1.Mrs.Smith_____thewindowseveryday.A.iscleaningB.cleanC.cleans2.OnSundayhesometimes_____hisclothesandsometimes_____someshopping.A.wash/doB.iswashing/isdoingC.washes/does3.She_____upatsixinthemorning.A.getB.getsC.getting现在进行时1.定义：表示正在发生或进行的动作结构：be(am,is,are)+动词现在分词形式（简写：be+动词-ing）A、陈述句(肯定句)主语＋be(am,is,are)+现在分词，如：IamreadingEnglish.我正在读英语。Heiswriting.他正在写字。B、一般疑问句Be(Am,Is,Are)+主语＋现在分词，如：Areyousinging?你正在唱歌吗？C、特殊疑问句疑问词＋be(am,is,are)＋主语＋现在分词Whatareyoudoing?你正在干什么?Iamdoingmyhomework.我正在做作业。2.标志词：(1)时间状语now、atthemoment(2)句前有提示词look、listen、lookat…如：1.Iamlisteningtothemusicnow.2.Thestudentsaredrawingpicturesnow.3.Listen!Sheissinging.4.Look!Mr.Liisridingabike.3.动词-ing的构成规则（1）一般情况下，直接加ing，如：cook-cooking,go-going,wash-washing,fly—flying（2）以不发音的e结尾，去e加ing，如：make-making,taste-tasting（3）如果末尾是一个元音字母和一个辅音字母，双写末尾的辅音字母，再加ing，如：run-running,stop-stopping,swim-swimming,run—running,get—getting（4）以ie结尾的动词，先把ie变成y再加-ing。lie-lyingtie-tying注意：see-seeingdraw-drawinglisten-listening【巩固练习】1.---WhereisMax?---He___________(run)onthegrass.A.runsB.runningC.isrunning2.Istheman_______teaormilk?A.drinksB.drinkC.drinking3.Don’ttalkhere.Grandparents_____.A.issleepingB.aresleepingC.sleepingD.sleep4.Theboyisplayingbasketball.否定句：____________________________一般疑问句：_________________________肯定回答：______________________否定回答：______________________对划线部分提问:____________________________5.Theyaresingingintheclassroom.否定句：____________________________一般疑问句：_________________________肯定回答：____________________否定回答：______________________对划线部分提问:____________________________【作业布置】一、选择题练习1.Who_____overtherenow?A.singingB.aresingC.issingingD.sing2.It’snineten.Thestudents_____anEnglishclass.A.haveB.havingC.ishavingD.arehaving3.Listen!Thebaby_____inthenextroom.A.cryingB.criedC.iscryingD.cries4.Look!Thetwins_____newsweaters.A.arewearingB.wearingC.arewearD.iswearing5.Tomisaworker.He_____inafactory.Hissisters_____inahospital.A.work/workB.works/workC.work/works6.We_____musicandoften_____tomusic.A.like/listenB.likes/listensC.like/arelistening7.Thetwinsusually_____milkandbreadforbreakfast,butJim_____somecoffeeforit.A.have/haveB.have/hasC.has/have二、用所给单词的正确形式填空：1.Myfatheralways__________(come)backfromworkverylate.2.Theteacherisbusy.He__________(sleep)sixhoursaday.3.Listen!Joan__________(sing)intheclassroom.Sheoften_______(sing)there.4.__________yourbrother__________(know)Japanese?5.Where__________you__________(have)luncheveryday?6.Thegirl______(like)wearingaskirt.Look!She_________(wear)aredskirttoday.７．Myparents_______（watch）TVnow.８.Look.Threeboys_______（run）.９.What_______yourmother_______（do）now?10._______yourdog_______now?（sleep）11._______you_______（listen）tomusic?Yes,Iam.12.Look,MissChen_______（play）football.13.Tomandhissister_______（wait）foryouoverthere.14.NowClass3andClass4____________（have）atest.15.Listen,someone_______（sing）intheclassroom.16.——WhereisZhangYan?——She_______（talk）withherteacherintheteacher’soffice.三、按要求进行句型转换：1.Lilyisdancing.（改为一般疑问句）________________________________________________2.Kateislookingforherwatch.（改为否定句）________________________________________________3.Mrs.WhiteiswatchingTV.（对划线部分提问）________________________________________________4.Iamdoinghomework.（改为否定句）________________________________________________5.Theyarewaitingforyouatthelibrary.（就划线部分提问）________________________________________________四、改错：1.Peoplelikeswiminginsummer.（）3.Areyoulistentome?（）4.Inotwritingaletter.（）4.MybrotherspeakEnglish.（）答案：一、CDCABAB二、1、comes2、sleeps3、issinging；sings4、Dose；know5、Do；have6、likes；iswearing7、arewatching8、arerunning9、is；doing10、Is；sleeping11、Are；listening12、isplaying13、arewaiting14、arehaving15、issinging16、istalking三、1、IsLilydancing?2.Kateisn'tlookingforherwatch/3.WhatisMisWhitedoing?4.Iamnotdoinghomework.5.Wherearetheywaitingforyou?四、1、错swimming2、错listening3、错在I后加am4、错speaks