山东省菏泽一中2014高中英语Unit3LifeintheFutureThe4thperiod教案新人教版必修5TeachingAims:Teachgrammar(ThePastParticipleastheadverbialandattribute)Improvethestudents’listeningskills.DifficultandImportantPoints:1)Learnthegrammar(ThePastParticipleasthePredicative&Attribute)2)HavetheSssumupthefunctionofthepastparticipleusinginductivemethod.TeachingMethods:1.InductiveMethod2.GroupworkTeachingProcedures:StepIDictationStepII.Grammar和现在分词及短语一样,过去分词(pastparticiples)或过去分词短语(pastparticipialphrases)也可以充当副词,修饰谓语动词。过去分词短语可以表达下列四种意思:(1)方法或活动方式,如:●Hewalkedupanddown,lostinthought.●Isatbeforethedeskuntilaftermid-night,absorbedinwriting.●Surroundedbyahostoffans,thefilmstarlefttheairportexcitedly.(2)原因,如:●Greatlydisappointed,somestaffdecidedtoleavetheplace.●Takenbysurprise,theenemysurrendered.(3)时间,如:●Bornandbredinaturbulentage,theoldergenerationofpeopleexperiencedallsortsofhardships.●Throwntothefloor,theboyregainedhisfootingafewminuteslater.(4)条件,如:●Givenmoretime,theslowlearnerswouldhavedonebetter.●Criticizedbysomeoneelse,Tonywouldnothaveflareduplikethat.除了直接修饰动词之外,过去分词或短语也可以和连词合组成短语,表示下列四种意思:(1)由when,whenever,while,until等连词引导,表示“时间”,如:●Whenaskedabouthispreviousjob,Billsaidhehadbeenamotormechanic.●Susanseldomspeaksinclassuntilspokento.(2)由where,wherever连词引导,表示“地点”,如:●Mosquitoesshouldbecompletelyexterminatedwherefound.●Retireesingoodhealthshouldbeinvitedtoreturntoworkwhereverneeded.(3)由if,unless引导,表示“条件”,如:●Ifkeptfortoolong,somemedicineswilllosetheireffectiveness.●Wehavemadeapointofnotattackingunlessattacked.(4)由though,although,eventhough连词引导,表示“让步”,如:●Thoughwarnedofthedanger,theystillwentmountaineering.●Eventhoughdefeatedforasecondtime,ourteamdidnotgiveuphopefortheultimatevictory.此外,过去分词短语还可以和介词“with”或“without”连用,具副词作用。如:●Withthewaterpipechoked,therewasn'tanymorewaterforuse.●Withoutanythingleftinthekitchen,theWangsdecidedtoeatout.最后,过去分词短语,在适当情况下,可以有自己的主语而变成独立结构(theabsoluteconstruction),如:●Theoldmanlistened,hisheadinclinedtooneside4.Studyingthepastparticipleastheattribute过去分词作定语,在语态上,表被动;在时间上,表示动作已经发生或完成,与它所修饰的名词有逻辑上的动宾关系。过去分词作定语时,所修饰的名词在逻辑上相当于被动句中的主语,过去分词相当于谓语。过去分词作定语表示动作在谓语动作之前发生,已经完成并具有被动意义。有时也不表示时间性。作定语的过去分词一般由及物动词变来,因为只有及物动词才有被动意义。例如:Heisateacherlovedbyhisstudents.他是个很受学生爱戴的老师。也有用不及物动词的过去分词作定语的情况,一般作前置定语,它不表示被动意义,只表示主动意义,强调动作完成。不能像及物动词的过去分词那样放在名词后面作定语。例如:fallenleaves落叶,retiredworkers退休工人,therisensun升起的太阳注意下面过去分词作定语的几种情况:A.单个的过去分词作定语一般放在被修饰的名词之前。例如:Weneededmuchmorequalifiedworkers.我们需要更多的合格的工人。Myfriendisareturnedstudent.我的朋友是个归国的留学生。单个分词也可以作后置定语,用以强调动作。例如:Theydecidedtochangethematerialused.他们决定更换使用的材料。B.过去分词短语作定语要放在被修饰的名词后面,作后置定语,其作用相当于一个定语从句。例如:Thestudentdressedinwhiteismydaughter.(=Thestude...