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课前自主预习[例句·体验]1．HavinglearnedthatIwasintrouble,hecametohelpmewithoutdelay.得知我有麻烦后，他毫不犹豫地前来帮我。2．Nothavingknownheraddress,Imightaswelltelephonehertocomeover.由于还不知道她的地址，我只好打电话让她过来。3．Havingbeenwritteninhaste,theessaywasnotworthreading.这篇文章是匆忙写成的，不值得去读。4．Johnadmittedbreakingtheglasswindow.约翰承认打碎了玻璃窗。5．Hegotwellpreparedforthejobinterview,forhecouldn'trisklosingthegoodopportunity.他为这次工作面试做了充分准备，因为他不能冒失去这次好机会的风险。6．Isuggestgoingoutforamomenttohavearestafterstudyingforonehour.我建议在学习一小时之后出去一会儿，休息一下。7．IliketodancewithJackthisweekend.我想要本周末和杰克跳舞。8．ShepretendednottoseemewhenIpassedby.当我经过时，她假装没看见我。9．IregrettotellyouthatTomhasbeenfired.我遗憾地告诉你，汤姆已经被解雇了。10．Maryregrettedtellingliestohermother.玛丽后悔向母亲撒了谎。课堂合作探究[语法·讲座]一、现在分词的完成式1．动词的ing形式的完成式指分词所表示的动作发生在主句谓语动词所表示的动作之前。若动词的ing形式所表示的动作与主语之间是主谓关系，则用havingdone；若是动宾关系，则用havingbeendone。动词的ing形式的完成式在句中作状语，表示时间、原因、让步等。Havingworkedinthecountryforthreeyears,heknewhowtogrowvegetables.在乡下工作了三年之后，他学会了如何种菜。(时间状语)Havingbeentoldmanytimes,hestillrepeatedthesamemistake.已经被告知多次，他仍犯同样的错误。(让步状语)2．否定形式为nothavingdone/nothavingbeendoneNothavingstudiedhislessonsveryhard,hefailedtheexamination.因为没有努力学习，所以他考试不及格。3．动词的ing形式的一般式所表示的动作与主句谓语动词所表示的动作往往同时发生，而完成式所表示的动作发生在谓语动词所表示的动作之前。Turningtotherightatthecrossing,youwillseethepostofficerightbeforeyou.在十字路口向右拐，你会发现邮局就在你前面。4．过去分词和动词的ing形式完成被动式的区别：过去分词表示完成被动意义，着重状态；动词的ing形式完成被动式侧重动作。表达意义不明显时，常优先使用比较简洁的过去分词。Hewalkedalongthestreet,lostinthought.他漫步街头，沉浸在思索中。二、动词后接ing形式或带to的不定式形式的区别1．下列动词只能跟动词的ing形式作宾语：admit,appreciate,delay,enjoy,excuse,finish,imagine,resist,keep,mind,miss,practise,risk,suggest等。Heenjoyslisteningtolightmusic.他喜欢听轻音乐。2.下列动词只能跟不定式作宾语：agree,ask,arrange,choose,decide,demand,expect,hope,long,manage,offer,plan,pretend,promise,refuse,wish等。I'vedecidedtoworkharder.我已决定更加努力工作。3．有些动词，如begin,start,continue,prefer,like,love等，其后接动名词或不定式意义没有区别，或者区别不大。Hebeganlearning/tolearnEnglishattheageoften.他10岁时开始学英语。4．在demand,deserve,need,require,want等动词后面的v.ing的主动形式表示被动意义，相当于不定式的被动语态。Thewindowsneedcleaning.＝Thewindowsneedtobecleaned.窗户需要擦了。Yourcarurgentlyrequiredrepairing.＝Yourcarurgentlyrequiredtoberepaired.你的车急需修理。5．下列动词词组常要用动词的ing形式作宾语：lookforwardto,leadto,objectto,getdownto,payattentionto,giveup,feellike,insiston,putoff,bebusy(in)等。Heobjectedtoacceptingoursuggestion.他拒绝接受我们的建议。Myfathergaveupsmokingtenyearsago.我父亲十年前就戒烟了。6．有些动词后接v.ing形式和不定式在意思上有很大区别。remembertodosth.记得去做某事rememberdoingsth.记得做过某事。forgettodosth.忘记要去做某事此事未做forgetdoingsth.忘记做过某事此事已做过或已发生goontodosth.做完一件事接着去做另一件事goondoingsth.中间停顿后继续做同一件事stoptodosth.停下来去做某事stopdoingsth.停下正做着的事regrettodosth.抱歉、遗憾地做某事regretdoingsth.后悔做了某事meantodosth.意欲、打算做某事meandoingsth.意味着做某事trytodosth.设法、企图、尽量做某事trydoingsth.尝试做某事can'thelpdoing禁不住做can'thelptodo不能帮助干Don'tyouremembertellingmethestoryyesterday?难道你不记得昨天告诉我这个故事了吗？Pleaseremembertogivemybestregardstoyourfamily.请记着代我向你的家人问好。Attheamusingperformance,theaudiencecouldn'thelplaughing.看到这滑稽的表演，观众们不禁笑了起来。Sorry,Ican'thelptocleantheroomforyou.Imustgoatonce.对不起，我不能帮你打扫房间了，我必须马上走。Iregrettotellyouthatalltheticketshavebeensoldout.我遗憾地告诉你，所有的票都卖光了。[课堂·总结演练]Ⅰ单句语法填空1．(fail)threetimes,hedidn'twanttotryagain.答案：Havingfailed答案2．Themanager,(make)itcleartousthathedidn'tagreewithus,leftthemeetingroom.答案：havingmade答案3．(tell)thestorymanyatime,thelittlegirlcanretellitindetail.答案：Havingbeentold答案4．Icrossedthestreettoavoid(meet)him,buthesawmeandcamerunningtowardsme.答案：meeting答案5．—Sohothere,isn'tit?—Yes,whynottry(turnon)theairconditioner?答案：turningon答案6．Weregret(inform)youthatyourapplicationhasnotbeensuccessful.答案：toinform答案7．Iabsolutelyrefuse(takepartin)anythingthatisillegal.答案：totakepartin答案8．Itried(catch)theearlybus,butIcouldn't.答案：tocatch答案Ⅱ句型转换1．Ihadneverseenhimbefore,soIdidn'trecognizehim.→，Ididn'trecognizehim.答案：Neverhavingseenhimbefore答案2．WhenIfinishedmyhomework,Iwentouttoplayfootballwithmyfriends.→，Iwentouttoplayfootballwithmyfriends.答案：Havingfinishedmyhomework答案3．Becausetheyhadbeenaskedtostay,theycouldn'tpossiblyleaverightaway.→，theycouldn'tpossiblyleaverightaway.答案：Havingbeenaskedtostay答案4．Whenhearrivedatthestation,hefoundthetrainhadleft.→，hefoundthetrainhadleft.答案：Arrivingatthestation答案5．Althoughhehadfailedmanytimes,hedidn'tloseheart.→，hedidn'tloseheart.答案：Havingfailedmanytimes答案演练通关提升[夯实·基础知识]Ⅰ单句语法填空1．Theenginejustwon'tstart.Somethingseems(go)wrongwithit.答案：tohavegone答案2．(ask)toworkovertimethatevening,Imissedawonderfulfilm.答案：Havingbeenasked答案3．We'vehadagoodstart,butnext,moreworkneeds(do)toachievethefinalsuccess.答案：tobedone答案4．(finish)hiswork,Tomwenttohavedinnerwithhiscolleagues.答案：Havingfinished答案5．Lateron,asIgetolder,Iappreciate(read)stories,inparticular,shortstories.答案：reading答案6．(warn)ofdangerinthestreetatnight,shehadtogohome,withafriendfollowingher.答案：Havingbeenwarned答案7．ThereisnothingmoreIcantry(persuade)youtostay,soIwishyougoodluck.答案：topersuade答案8．Ididn'tmean(eat)anything,butthecakelookedsodeliciousthatIcouldn'thelptryingapieceofit.答案：toeat答案9．Themonkeyseemedtoenjoy(photograph)withchildreninthepark.答案：beingphotographed答案10．Theyo