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1、现在分词探究运用学案“学习目标.1•Learnhowtousethedifferentformsofthepresentparticiple;2.Learnwhentousetheinfinitiveandwhentousethepresentparticiple.探究任务：A.观察下列句子，可知：1.现在分词有a.doing,b.havingdone,c.,d.等4种形式。其中，a,b称为主动式，c,d称为；称为一般式，称为完成式（请完成附表）；（beingdone;havingbeendone;被动式；）2.一般式、完成式合称现在分词的时态，指分词动作与在时间上的先
2、后关系。（谓语动作）doing,:;（beingdone;与谓语动作同时或几乎同时发生）havingdone,:.（havingbeendone;在谓语动作之先发生）3.主动式、被动式合称现在分词的语态，指分词动作与它的之间的主被动关系。（逻辑主语）doing,havingdone:是分词动作的;,:是分词动作的（逻辑主语;执行者；beingdone;havingbeendone;逻辑主语;承受者）Theoldfarmer,supportingthebadly-injuredandwoundedsoldier,cameoutoftheburninghouse,calli
3、ngforhelp.Nothavingworkedhardbefore,Tomisafraidoffailingintheexam.Havingbeentranslatedintomanylanguages,thestoryiswellknownallovertheworldnow.Lindacan'tattendthepartybeingheldatTom'shouseatpresentbecausesheispreparingaspeechfortheparty.附表：—练一练用括号中动词的适当形式填空：1.Sarahpretendedtobecheerful,(s
4、ay)nothingabouttheexam.(saying)2.Theairport(construct)nowwillhelppromotetourisminthisarea,(beingconstructed)3.Theoldcoupleoftentakeawalkaftersupperinthepark,withtheirpetdog(follow)them,(following)4.(offer)animportantroleinanewmovie,Andyhasachancetobecomefamous,(havingbeenoffered)B.观察下列句子
5、，可知：havingdone/havingbeendone在句中只充当beingdone在句中只充当和。(状语；状语；定语)1•Igottotheofficeearlierthatday,havingcaughtthe7:30trainfromPaddington.2.Beingpainted,thehouseisnotinuseatthemoment.3.Thehousebeingpaintedatthemomentbelongstomyuncle.4.Theproblemisbeingquiteconfusing,(wrong)Theproblemisquiteco
6、nfusing,(correct)5.Shebelievedherbrotherhavingbeentakenawaybyaliens,(wrong)Shebelievedherbrothertakenawaybyaliens,(correct)6.Ifoundthehousestillbeingconstructed,(wrong)Ifoundthehousestillunderconstruction,(correct)练一练选择填空：a.Thepolicearesearchingfortheprisoner•(D)A.escapingB.escapedC.havi
7、ngescapedD.whohasescapedb.Agoodstorydoesnotnecessarilyhavetohaveahappyending,butthereadermustnotbeleft.(A)A.unsatisfiedB.unsatisfyingA.tobeunsatisfyingD.beingunsatisfiedc.动词不定式和现在分词如何选择？不定式一般式表示的动作在发生；完成式表示的动作在发生。(谓语动作之后；谓语动作之先)不定式常用一般式做状语，有三种情况：1.2•表“意外结果”，常与连用；(表"目的”;on
