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1、Warm-upExercisePeople_________(travel)longdistancesfrequentlyhave_________(decide)whethertheywouldprefer__________(go)byland,sea,orair,Hardlyanyonecanpositivelyenjoy__________(sit)inatrainformorethanafewhours.TrainCompartmentsarelikely__________(get)crowdedandstuffy.Itisalmostimpo
2、ssible__________(take)yourmindoffthejourney.__________(read)isonlyapartialsolution,forthemonotonousrhythmofthewheels__________(click)onrailssoonlullsyoutosleep.Atnight,whenyoureallywish__________(go)tosleep,yourarelymanage__________(do)so.Ifyouareluckyenough__________(find)acouche
3、tte,youspendhalfthenight__________(stare)atthesmallbluelightintheceiling.Asaresult,youarriveatyourdestinationalmost__________(exhaust).Non-FiniteVerbs非限定动词又称非谓语动词?Questions?为什么称为非限定动词？不受主语的人称和数的限制为什么称为非谓语动词？不能单独作谓语有几种形式？不定式（infinitive）动名词（gerund）现在分词（presentparticiple）分词（participl
4、e）过去分词（pastparticiple）?Questions?可作什么句法成分？主语宾语定语补语状语不定式+++++动名词++++-分词--+++Exercise&ExplanationGap-Filling:__________(try)toforgetone’spastisimpossible．(Trying/Totry)动名词和不定式都可充当句子的主语。在多数情况下，选择动名词还是不定式作主语对句意影响不大。抽象，有普遍意义的或概念化的动作常用动名词。有些动名词已几乎成为了表示动作的名词，如：reading，writing，swimming，sm
5、oking，jogging，learning，cooking。TrueorFalse:A.Itisimpossibletotrytoforgetone’spast．B.Itisimpossibletryingtoforgetone’spast．(A.TrueB.False)句型：Itis(im-)possibletodosth.OForFORA.It’sdifficult____ustogettogether.B.It’sthoughtful____yourmothertogetthefoodreadyA.forB.of句型：Itis+adj.+forsb
6、.todosth.这类形容词有：easy,difficult,hard,impossible,possible,necessary,important,essential,easy,useless,convenient句型：Itis+adj.+ofsb.todosth.表示一个人的特性．而不是动作本身的性质，用of引导不定式的逻辑主语，这类形容词包括：good,kind,clever,foolish,stupid,silly,careless,nice,polite,right,bad,wrong,cruel,generous,unselfish,thou
7、ghtful,considerate,wise等。E.g.It’sverykindofyoutocometoseeme.=Youareverykindtocometoseeme.It’scleverofthispolicemantopretendtobeadriver．Exercise&ExplanationSentenceCompletionA.Itisnouse____(ask)meforhelp.B.Itisofnouse____(cry)overspiltmilk.A.askingB.tocry句型：Itisnouse+doing(sth.)It’
8、snouse(good)…后接动名词，表示“…是没有用的”It’s
