一般现在时与现在进行时比较

一般现在时与现在进行时比较I.【概念不同】1.一般现在时：一般现在时表示经常的、习惯性的动作或现在的特征、状态。2.现在进行时：现在进行时表示说话时正在进行的动作或目前这一阶段一直持续的状态。II.【构成不同】1.一般现在时：一般现在时的构成有以下几种类型：☆★be动词型：be肯定句中的形式为：am,is或are;IaminClass2.Heis13.Theyareactors.否定句中的形式为:amnot,isnot/isn't或arenot/aren't;IamnotinClass2.Heisnot13.Theyarenotactors.一般疑问句的形式为：am,is或are+主语+...简略答语为：Yes,主语(人称代词)+am/is/are.No,主语（人称代词）+amnot/isn't/aren't.Areyouateacher?你是一名教师吗？Yes,Iam.是的，我是。/No,I’mnot.不，我不是。☆★实义（行为）动词型：(动词是表示具体动作的单词)在肯定句中，句子动词用do（动词原形）/does（动词第三人称单数）.Iplayfootballeveryday.Heplaysfootballeveryday.在否定句中，句子的谓语动词由don't或doesn't+动词原形构成。Idon’tgotoschoolonSundays.Hedoesn'twatchTVintheevening.他晚上不看电视。在一般疑问句中，句子的谓语动词仍由“助动词do或does...+动词原形”构成。Doyouwanttogotothemovies?你想要去看电影吗？DoesJackleavehomeatseven?杰克是7点离开家的吗？动词第三人称单数的构成规则：①一般的，直接在动词后面加s.play---playsrun---runs②以s/x/sh/ch/o结尾的单词，直接加es.brush---brushesgo---goes③以辅音字母加y结尾的单词，先把y变成i，再加es.carry---carriescry---cries☆☆注意have的第三人称单数为has☆★情态动词型：肯定句由“情态动词（can/may）+动词原形”构成。IcansinginEnglish.我可以用英语唱歌。否定句：can/may+not+动词原形（cannot=can’t）Ican’tsinginEnglish.一般疑问句：Can/May+主语+动词原形CanyousinginEnglish?Yes,Ican./No,Ican’t☆★祈使句型：肯定形式的祈使句，以动词原形开头。例如：Sitdown,please.请坐。否定形式的祈使句，以Don’t+动词原形开头。如：Don’tsitdown,please.请别坐下。2.现在进行时:现在进行时由“助动词be(am,is／are)+doing(动词的现在分词)构成。☆★现在分词的构成规则：在动词原形上加ing。go---goingplay---player动词以单个e结尾去掉e,加ing。love----lovingmake---making动词以ee结尾直接加ing。see_seeing辅音字母双写，再加ing。run_runningstop_stopping以ie结尾的单词，把ie变为y，再加ing。lie---lyingtie---tyingIII.【时间状语不同】1、常与一般现在时连用的时间状语有：sometimes,usually,always,often;everyday/week/month/year/...;onSunday(s)/Monday(s)/...;atsevenforty/at10:00inthemorning/afternoon/evening;now;today等等。例如：Iwritetomyuncleeverymonth.我每个月给叔叔写一封信。2、与现在进行时连用的时间状语有：now,atthemoment;另外，Look!Listen!或Don't...等开头的祈使句常常会引出现在进行时的句子。例如：Iamwritingtomyunclenow.我正在给我的叔叔写信。Don’tgoout.It’sraining.别出去。正在下雨。☆★☆：一般现在时和现在进行时的特殊疑问句形式都是由：“疑问词+一般疑问句”构成☆★☆：很多同学不会判断第三人称单数，那么记住下面的这句话：除了I/we/you/they四个单词以及名词的复数形式外，其他都是第三人称单数。知识检测：写出下列结构的相应形式：否定句、一般疑问句。1、主语+be：_________________________________________________________________________________2、主语+can/may:______________________________________________________________________________3、主语+do/does:_______________________________________________________________________________一般现在时和现在进行时练习题一、写出下列动词的现在分词形式work__________sing__________play__________study_________dance__________have__________write__________take__________run__________sit__________shop__________swim_________lie__________die___________二、写出下列动词的第三人称单数形式work__________read__________clean__________write__________teach__________wash__________guess__________watch__________go__________do___________photo__________have__________study__________fly__________cry__________play__________三．填入be动词的适当形式1.He_____drinkingwater.2.Thebird_____flyinginthesky.3.Children_____playingintheplayground.4.Theyare_____workingnow.5.I_____goingtothesupermarket.6.I_____coming.7.He_____walkinginthewoodsnow.四、填空:1.Sheis_________(walk,walking)now.2.Theyare_____________(sitting,siting)onthechair.3.Cindyis_____________(watch,watching)TV.4.Joeis_____________(work,working)inthegarden.5.Thecatis___________(lieing,lying)ontherug.6.Look,thegirlis____________(run).7.Thecatis_____________(eat)now.8.Look,thebabyis___________(smile).9.Mymotherandmyfatherare__________(dance).10.UncleJerryis____________(drive).11.Thefishis___________(swim)intheriver.12.Sheis_________(shop).五、填空1.Whatareyou_________(do)now?I___________(eat)bread.2.It’snineo’clock.Myfather_______________(work)intheoffice.3.Look,theboy____________(put)therubbishintothebin.4.__________he__________(clean)theclassroom?No,heisn’t.He____________(play).5.WhereisMak?He___________(run)onthegrass.6.Listen,who____________(sing)inthemusicroom?Oh,Mary_____________(sing)there.7.Myfatheralways__________(come)backfromworkverylate.8.Theteacherisbusy.He__________(sleep)sixhoursaday.9.Listen!Joan__________(sing)intheclassroom.Sheoften__________(sing)there.10.__________yourbrother__________(know)Japanese?11.Where__________you__________(have)luncheveryday?六、选择填空：()1.Lucy_________intheclassroom.A.singingB.aresingC.issingingD.sing()　2.It’seighto’clock..Thestudents_____anEnglishclass.A.haveB.havingC.ishavingD.arehaving()　3.Listen!Thebaby_____inthenextroom.A.cryingB.criedC.iscryingD.cries()　4.Look!Thetwins_____newsweaters.A.arewearingB.wearingC.arewearD.iswearing()　5.Don’ttalkhere.Grandparents_____.A.issleepingB.aresleepingC.sleepingD.sleep()　6.Tomisaworker.He_____inafactory.Hissisters_____inahospital.A.work/workB.works/workC.work/works()　7.Who_____Englishbestinyourclass?A.speakB.speaksC.speaking()　8.MrsRead_____thewindowseveryday.A.iscleaningB.cleanC.cleans()9.We_____musicandoften_____tomusic.A.like/listenB.likes/listensC.like/arelistening()10.She_____upatsixinthemorning.A.getB.getsC.getting()11.OnSundayhesometimes____hisclothesandsometimes____someshopping.　　A.wash/doB.iswashing/isdoingC.washes/does()12.Thetwinsusually____milkandbreadforbreakfast,butJim___somecoffeeforit.A.have/haveB.have/hasC.has/have★★提高题：一、用括号内动词的适当形式填空。1.Heoften________(have)dinnerathome.2.DanielandTommy___