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　　period3grammarteachingaims1revisethepassivevoice（includingtheinfinitive）andknowtheexactmeaningofthestructure。2beabletousetheusefulwords，expressionsandstructurescorrectly。teachingproceduresstep1revisionaskstudentstoanswerthefollowingquestionswithoutreferringtothetextbook。1whatwasgoingtobetestedoutbylarryswife，claire？2howdidlarrybelmontfinallypersuadehiswifetoaccepttheexperiment？3howdidclairefeelwhenshewasofferedsympathybyarobot？4whatdidtonyexpecttodoaboutthehousebeforehewastoleaveandlarrywastoreturn？5howdidclairefeelwhenshewasenviedbythosewomen？6whathappenedtotonyatlast？suggestedanswers：1therobotwasgoingtobetestedoutbylarryswife，claire。2larrypersuadedherthattherobotwouldntharmherorallowhertobeharmed。3shethoughtitwasridiculoustobeofferedsympathybyarobot。4tonyexpectedthehousetobecompletelytransformed。5shefeltitasweetvictorytobeenviedbythosewomen。6tonyhadtoberebuilt。step2grammarlearning1不定式的被动形式当不定式与逻辑主语之间是被动关系时，即不定式的逻辑主语是不定式所表示动作的承受者，不定式一般要用被动形式。其被动式可以分为两种：一般式和完成式。（1）一般式：tobedone，表示不定式动作在谓语动词之后或者同时发生。itisagreathonortobeinvitedtospeakhere。很荣幸被邀请在这里讲话。thenovelissaidtobepublishednextmonth。据说这本小说下月要出版。（2）完成式：tohavebeendone，表示不定式动作发生在谓语动词之前。thebookissaidtohavebeentranslatedintosixlanguages。这本书据说已经被翻译成六种语言。thebosspreferredtohavebeengivenmoreworktodo。老板宁愿被分给更多的工作做。
　　被动
　　一般式
　　tobedone
　　完成式
　　tohavebeendone2。不定式被动形式的作用（1）作主语itsanhonortobeinvitedtotheceremony。很荣幸被邀请赴宴。itsapitytobekeptinthehouseinsuchfineweather。在这样好的天气被关在家里真是遗憾。（2）作表语theletteristobesentbyairmail。这封信笺要空邮。（3）作宾语shedidntliketobetreatedasachild。她不喜欢被当成孩子。theboyaskedtobegivenanopportunitytotryagain。那男孩要求给他再试一次的机会。（4）作宾语补足语idlikemybedroomtobecleaned。我想整理一下我的卧室。（5）作定语hewasthelastonetobeaskedtospeakatthemeeting。他是最后一个在会上被邀请发言的人。（6）作状语hismotherleftthesmallvillage，nevertobeseenagain。他母亲离开了那个小山村，再也没有人见过她。3不定式有些要注意的地方（1）感官动词和一些使役动词的不定式的主动形式要省去to，但在变成被动语态后需要加上to，能这样用的动词或动词词组有：make，have，let，see，hear，notice，listento，watch等。如：weoftenseehimactlikethat。heisoftenseentoactlikethat。我们常常看到他那样做。（2）在canthelpbut，havenothingtodobut结构中，介词but后的不定式省去to。如：icanthelpbutsuspecthismotive。我不禁怀疑起他的动机。ihavenothingtodobutwatchtv。我没什么事情可做，除了看电视。（3）不定式有时要用主动形式表示被动意义形容词以及含有形容词的名词后的不定式，一般用主动形式表示被动意义，其中形容词常见的有easy，difficult，important，impossible等。如：theworkisimpossibletofinishintwodays。工作不可能两天之内完成。englishisnotsoeasytolearn。英语并不好学。一些固定用法，如挨骂，受责备，受批评用（东西等）出租用tolet。heistoblameforwhathehasdone。他应为他所做的受责备。thehouseistolet。房子要出租。step3exercises1thecrowdcheeredwildlyatthesightofliuxiang，whowasreportedtheworldrecordinthe110meterhurdlerace。abreakingbhavingbrokenctohavebrokendtobreak2ilikegettingupveryearlyinsummer。themorningairissogood。atobebreathedbtobreathecbreathingdbeingbreathed3theprojectasplanned，wellhavetoworktwomorehoursaday。acompletingbcompleteccompleteddtocomplete4havingatripabroadiscertainlygoodfortheoldcouple，butitremainswhethertheywillenjoyit。atoseebtobeseencseeingdseen5ihurriedtothemeetinghall，onlythatthemeetinghadbeenputoff。atotellbtobetoldctellingdtold6sheappearseverything。atotellbtobetoldctobetellingdtohavebeentold7littletomshouldlovetothetheaterthisevening。atobetakenbtotakecbeingtakendtaking8itissaidthatplasticscanbeusedtomanythings。nowpeopleareusedtoplasticsproducts。use9withalotofproblems，thenewlyelectedpresidentishavingahardtime。asettledbsettlingctosettledbeingsettledkeys：15cbdbb69daacstep4drillingaskstudentstodoexercise1onpage14andthenchecktheanswerstogether。keys：exercise1betestedout，beharmed，beoffered，wasamazed，wasnotallowed，bediscovered，becompletelytransformed，wereimpressed，beenvied，berebuiltaskstudentstodoexercise2andthenchecktheanswerstogether。keys：exercise21tobedesigned2。toberebuilt3。tobeaccompanied4。tobeknownas5。tobefilledwith6。tobetestedout7。tobeenvied8。tobesetasidestep5usingthepassiveinfinitivetranslatethefollowingsentencesintoenglishusingthepassiveinfinitive。1那本关于《圣经》的书需要在这个周末之前还给图书馆。2下周末前，这个旧扶手椅将由一个沙发代替。3不要着急，你有足够的时间把那个传真发到你的公司。4你同妻子离婚的决定必须要得到她的同意。5刚刚出了一起事故，不过没有必要惊慌，没有人受伤。6虽然她考得不错，但是她预料父母还是会对考试的结果感到失望。7当在医院进行大手术的时候，她得到了家人的关爱和支持，为此她感到非常高兴。8他为自己被宣布成为智力竞赛冠军得主的事感到十分兴奋。9他把他们已经得到的XX元与将提供的1500元加在一起，总共3500元。10没有主力队员的参与，他们一定会在即将到来的比赛中被打败。suggestedanswers：1thatbookontheholybibleneedstobereturnedtothelibrarybybeforetheendoftheweek。2thatoldarmchairistobereplacedbyasofanextweek。3dontworryyoustillhaveplentyoftimeforthatfaxtobesenttoyourcompany。4yourdecisiontoporceyourwifehastobemadewithheragreement。5therehasbeenanaccidentbutthereisnoneedtobealarmed。nobodyhasbeenhurt。6althoughshehaddonewell，sheexpectedherparentstobedisappointedbyherexamresults。7shewashappytobesupportedbytheaffectionofherfamilywhenshehadaseriousoperationinhospital。8hewassoexcitedtobedeclaredthewinnerofthetalentcompetition。9headdedtheXXyuantheyhadreceivedtothe1500yuantobeoffered，making3500yuaninall。10withouttheirkeyleadingplayer，theyreboundtobebeateninthecomingcompetition。step6homeworkfinishoffexercises1and2onpage56。