动词不定式和动词-ing讲练无答案

动词不定式和动词-ing动词不定式三注意：动词不定式是动词的非谓语形式之一，常由“to+动词原形”构成，可在句中作主语，表语，宾语，宾语补足语，状语等。今天，咱们主要谈谈关于它的三个要多加注意的方面。.作宾语的动词不定式何时省略to我们知道，像ask,want,invite,wish,expect,warn等动词后常接带to的动词不定式作宾语补足语。那什么时候把to省略呢？常见的有“一感二听三让四看半帮助”几种情况。即feelsbdosth；listen/hearsbdo；make/let/havesbdosth;lookat/see/watch/noticesbdosth;helpsb(to)dosth如：IoftenhearMollysingsongsinherroom.我经常听见莫利在她的房间里唱歌。Don’tmakehimstandoutside.别让他在外边站着了。【知识拓展】①若表示“看到/听到/感觉到某人正在做某事"，则用see/hear/feelsbdoingsth.如：Icanhearsomeonesingingatthedoor.我能听见有人正在问口唱歌。②在被动语态中，这些不定式中被省略的to要还原。如：Hewasmadetodomorework.他被要求做更多的工作。Shewasseentoplaybasketball.他被看见在打篮球。.疑问词+不定式不定式可以和疑问词what,how,when,where等连用，共同作句子的宾语或表语等，但此时不定式一定要放在疑问词的后面。如：Canyoushowmehowtoturnoffthecomputer?你能让我看看如何关电脑吗？（howtodosth作宾语）Wheretospendtheweekendhasn’tbeendecidedyet.去哪里度过周末还没有被决定出来呢。（wheretodosth作主语）.不定式和it不定式可以作句子的主语和宾语，但有时候它们因太长而显得句子结构不够完美，故常用it来代替它作形式主语或形式宾语。常见的句型有以下两个：①Itbe+adj+forsbtodosth对某人来说做某事怎么样。（it作形式主语）②sbthinks/findit+adj+todosth.某人认为（发现）做某事怎么样。（it作形式宾语）如：Itisveryeasyformetoanswerthatquestion. 对我来说，回答那个问题是很容易的。Didyoufindithardtosolvetheproblem?你觉得解决那个问题很难吗？练一练：用括号内所给单词的正确形式填空。Canyoutellmehowtothecinema?（go）Itisveryeasyforhimthatproblem.（solve）Listen!Canyouhearsomeoneatourdoor?（knock）Hewasmadehisnameontheblackboard.（write）Weoftenseehimbooksontheplayground.（read）Ifindithardanewlanguage.（learn）教你认识动词-ing形式在本单元的学习中，我们在很多地方都见到了动词-ing形式（即v-ing）。它们的用法都一样吗？在句中又作什么成分呢？【概念】在英语中，动词的-ing形式既可能是现在分词，又可能是动名词，是由动词原形加上ing构成的。如swim-swimming，stand-standing等。【现在分词】现在分词常用于现在或过去进行时态，与be动词（即am,is,are或was,were）作句子的谓语。如：Theyareswimmingintheriver.它们正在河里游泳。Look!Thegirlisflyingakiteoverthere.看！女孩正在那边放风筝。此外，现在分词在句中还可作一下成分：（1）作定语，表示主动或动作正在进行。如：Thegirlsittingunderthetreeismysister,正坐在树下的那个女孩是我的妹妹。（2）作表语，表示主语的特征。如：Thenewsissosurprisingthatwehardlybelieveit.这个消息如此令人吃惊，以至于我们几乎都不能相信。（3）作宾语补足语，表示宾语执行的动作正在进行，常用于see/hearsb.doingsth.等句型中。如：IheardhimsinginganEnglishsongwhenIpassedhisroomlastnight.昨天晚上经过他的房间时，我听见他正在唱英语歌。（4）作状语，可用来表示时间、原因、方式、伴随或结果等。如：Shesattheresinging.他坐在那儿唱歌。（伴随状语）Beingsopoor,hecouldn,tgettoschoc因l为太穷了，所以他不能去上学。（原因状语）【动名词】动名词是一种非限定动词，它兼有动词或名词的特征。在句中可作主语、表语、定语等，常见用法如下：（1）作主语。如：Readinginthesunisbadforoureyes.在太阳底下看书对我们的眼睛不好。Iseatingworsefruitgoodforourhealth?吃腐烂的水果对我们的健康有益吗？（2）作表语，表示一个抽象动作，说明主语的内容。如：Myhobbyiscollectingstamps.=Collectingstampsismyhobby.（3）作宾语，常放在动词或介词后面。如：①常接动名词作宾语的动词有enjoy,finish,practice,mind,stop,love,like,dislike等。如：Whendidyoufinishwritingyourcompositionyesterday?昨天什么时候你写完你作文的？②常接动名词作宾语的介词或含有介词的短语有beinterestedin,stop・・・from•…，begoodat,dowellin,betalentedat,whata-bpifeellike,awayof等。如：Canyouthinkofawayofsolvingthisproblem?你能想出解决这个问题的方法吗/Wemuststopthemfromcuttingdownthetrees.我们必须阻止他们砍树。（4）作定语，说明所修饰名词的用途。Thereisabigswimmingpoolinmyyard.在我的院子里有一个游泳池。Doingsth1完成某事情finishdoingsth2喜欢做某事like/enjoydoingsth/3讨厌做某事hatedoingsth去游泳/远足goswimming/hiking购物/看书dosomeshopping/reading买票划船buyticketsforboating掰完玉米后afterpickingcorns擅长做某事begoodatdoingsth.做某事遇了些问题havesomeproblems(in)doingsth获得乐趣havefundoingsth忙于干某事bebusydoingsth感谢您做某事Thankyoufordoingsth做某事怎样？What/Howaboutdoingsth.?跑步有益健康。Runningisgoodforhealth.Dosth最好干某事hadbetterdosth16让某人做某事letsbdosth.

1718192021To2223242526272829303132333435帮某人做某事helpsb.(to)dosth.为何不做某事呢？Whynotdosth?我可以做某事吗？MayIdosth.?我们做某事好吗？Shallwedosth?请不要做某事。Please(don't)dosth.dosth不得不做某事havetodosth.尽力干某事trytodosth将要干某事begoingtodosth.想做某事wanttodosth无所事事havenothingtodo需要干某事needtodosth打电话告诉你calltotellyou想要某人去干某事wantsbtodosth使用…干什么usesthtodosth告诉某人(不)要干某事tellsb(not)todosth乐于干某事begladtodosth过来做某事come(up)todosth.考虑说什么thinkaboutwhattosay参观中国的最好时间thebesttimetovisitChina

3637383940414243To444546474849505152我有许多工作要做。Ihavealotofworktodo.没时间去干某事。There'snotimetodosth对于某人来说干某事…It's形forsbtodosth干某事花费某人一些时间Ittakessbsometimetodosth干某事很好It'sgoodtodosth我的工作是喂牲口。Myjobistofeedtheanimals.听到这种事我很伤心I'msorrytohearthat你愿意做某事吗？Wouldyouliketodosth?do/Doingsth开始做某事starttodo/doingsth忘记/记得干某事forget/remembertodosth.忘记/记得干过某事forget/rememberdoingsth.继续做某事（未完）goondongsth.继续做某事（另事）goontodosth.听/看见某人在干某事hear/seesbdoingsth.听/看见某人干了某事hear/seesbdosth.停止做某事stopdoingsth.停下来做某事stoptodosth.

即时训练:一、用非谓语动词的适当形式填空:ThebesttimeSatellitesareusedfor（plant）treesisinspring.ThebesttimeSatellitesareusedfor（learn）moreabouttheearth.Hefinishes（wash）ateighto’clockintheevening.You’veworkedfor4hours.Pleasestop（have）arest.Sheoftenmakesus（do）alotofhomeworkafterschool.Motheralwaystellme（notread）inbed.Theyaskedtheheadmaster（speak）atthemeeting.（smoke）toomuchisbadforyourhealth.thebabywasmade（laugh）byTom.Thankyoufor（come）toseeme.二、用非谓语动词完成下列各句：Iwant（看）afilm,（而不是看）TV.Didyouseeher（上了）thebus?I’mthirsty.I’dlikesomething（喝）.It’sveryimportant（学）aforeignlanguagewell.Theoldmanfounditdifficult（入睡）.Therunnerfell,buthequicklygotupandwenton（跑）.Remember（关）thelightswhenyouleavetheclassroom.Stop（谈话），please.It'stime（上课）.Ittookmetwohours（完成）myhomeworklastnight.Ispenttwohours（做）myhomeworklastnight.三、单项选择Herwishisafamoussinger.A.becomeB.becameC.becomesD.tobecomeOurmonitorisalwaysreadyothers.A.helpB.helpsC.tohelpD.helpingHaveyoudecidedforyourholidays?A.gowhereB.wheretogoC.togowhereD.wheregoWouldyoupleasemeachair?A.give;tositonB.give;tositC.giving;sitD.togive;sitonThereidnodifferencebetweenthetwowords.Ireallydon’tknow.A.whattochooseB.whichtochooseC.tochoosewhichD.tochoosewhatThoughhehadoftenmadehissister,todayhewasmadebyhissister.A.cry;cryingB.crying;cryingC.cry;tocryD.tocry;cry-Whyareyougoingshoppingifyoudon’t?-Mywifewantswithher.A.wantto;IgoB.want;megoingC.wantto;metogoD.want;togoWeareoftentoldpeopleintrouble.A.tosmilingB.nottosmileC.tolaughD.nottolaughatYoulooksotired.Whynotarest?A.stophavingB.tostophaveC.stoptohaveD.tostoptohaveWhatafineday!Howaboutoutforawalk?A.goB.togoC.goneD.goingMarywentaftershefinishedherwork.A.swim;doingB.toswim;todoC.toswim;doingD.swimming;todoWouldyoumindthewindow,please?It’scoldoutside.A.tocloseB.closingC.closedD.closeAfridgeisusedforvegetableandfoodcool.A.keptB.keepingC.tokeepD.keepsThefarmersonthefarmarebusyap