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1、Unit1Laughterisgoodforyou什么是非谓语动词？非谓语动词的三种形式动词不定式表示未发生的或后发生的动作动词-ing表示主动的动作动词-ed表示被动的动作非谓语动词在句子中的作用作主语☆动词不定式作主语Toseeistobelieve.Torecoverlosttimeisimpossible.Itis/was+adj.+(for/ofsb.)todosth.Itisimpossibletocovelosttime.Itisveryfriendlyofyoutoinviteustoyourbirthdayparty.单个不定式作主语时,谓语动词用单数若不定式
2、太长,往往用it作形式主语,不定式置后Becareful!☆动名词作主语FightingbrokeoutbetweentheSouthandtheNorth.Itis/was+(no)adj.+doingsth.Eg.It’snouselearninglotsofwordswithoutknowinghowtousethem.But:Itisnotuseful/goodtodosth.Itisuse/goodforsb.Todosth.动词不定式作主语和动名词作主语的区别：不定式作主语常表示具体的某一动作；动名词作主语表示泛指或一般的抽象概念在there/it+be+nouse
3、/good/help/need之后常用动名词作主语不定式可以和when/where/how/what/whether等连用，在句中作主语、宾语和表语，而动名词则不能高考链接：_______isagoodformofexerciseforbothyoungandold.ThewalkB.WalkingC.TowalkD.Walk二作宾语☆动词不定式作宾语Hedecidedtoworkharderinordertocatchupwiththeothers.Irefusetoacceptwhateveryoubuyforme.记忆口诀：决心学会想希望，拒绝设法愿假装，主动应答选计划，
4、同意请求帮一帮。decide/determine,learn,want,hope/expect/wish,refuse,manage,care,pretend,offer,promise,choose,plan,agree,ask/beg,help高考链接：Weagreed________here,butsofarshehasn’tturnedupyet.A.havingmetB.meetingC.tomeetD.tohavemet☆动名词作宾语Eg.Iwouldappreciateyoucallingbacktonight.Iregretnothavingtakenyoura
5、dvice.HearingwhathappenedinSichuan,manypeoplecouldn’thelpcrying.记忆口诀：考虑建议盼原谅，承认推迟没得想，避免错过继续练，否认完成就欣赏，禁止想象才冒险，不禁建议准逃亡。consider,suggest/advise,lookforwardto,excuse/pardonadmit,delay/putoff,fancy,avoid,misskeep/keepon,practisedeny,finish,enjoy/appreciate,forbid,imaging,risk,can’thelp,mind,allow
6、/permit,escape某些特殊动词：forget,remember,regret,stop,try,mean,goon,cease,Want,need,require高考链接：—Thelightintheofficeisstillon.—Oh,Iforgot________.turningitoffB.turningitoffC.toturnitoffD.havingturneditoff2.—Youwerebraveenoughtoraiseobjectionsatthemeeting.—Well,nowIregret________that.A.todoB.tobed
7、oingC.tohavedoneD.havingdone三作宾补☆动词不定式作宾补V1+sb.+todosth.ask/require/tell/order/force/get/want/like/think/judge/suppose/believe/consider/imagine/callon/dependon/waitfor/askforV2+sb.+dosth.感官动词：see,watch,observe,notice,lookat,hear,listen,smell,taste,
