as-if-用法归纳

Neverputoffwhatyoucandotodayuntiltomorrow.asif用法归纳1．asif从句的作用asif一般可由asthough来代替。引导表语从句，可在look,seem等系动词后。如：Helookedasif/thoughhewasill.他看起来好像生病了。Itseemsasifitisgoingtorain.看来好像要下雨了。引导方式状语从句。如：Irememberthewholethingasif/thoughithappenedyesterday.Thechildtalkedtousasifhewereagrown-up.那个小孩跟我们讲话就像个大人一样。2．asif从句的语气及时态①asif从句用陈述语气。当说话者认为句子所述的是真实的或极有可能发生或存在的事实时，Itsoundsasifitisraining.听起来像在下雨。Hetalksasifheisdrunk.从他说话的样子来看他是醉了。②asif从句用虚拟语气。当说话人认为句子所述的是不真实的或极少有可能发生或存在的情况时，表示与现在事实相反，谓语动词用一般过去式。如：Youlookasifyoudidn’tcare.你看上去好像并不在乎。Whenapencilispartlyinaglassofwater,itlooksasifitwerebroken．表示与过去或与谈话时间为止发生的事实相反，谓语动词用“had+过去分词”。如：Neverputoffwhatyoucandotodayuntiltomorrow.HetalkedabouttheGreatWallasifhehadbeentherebefore.说起长城来好像他以前去过那里。Thegirllistenedasifshehadbeenturnedtostone.女孩听着，一动也不动，像已经变成了石头。表示与将来事实相反，谓语动词用“would/could/might+动词原形”。如：Heopenedhismouthasifhewouldsaysomething.他张开嘴好像要说什么。Itlooksasifitmightsnow.看来好像要下雪了。3．asif从句中的省略。如果asif引导的从句是“主语+系动词”结构，可省略主语和系动词等成份，这样asif后就只剩下名词、不定式、形容词（短语）或动词-ing形式等。Heactsasif(hewas)afool.他做事像个傻子。Hepausedasif(hewasgoing)toletthesadmemorypass.Thegirllefttheroomhurriedlyasif(shewas)angry.女孩匆忙离开房间，好像生气的样子。Fromtimetotime,Jasonturnedroundasif(hewas)searchingforsomeone.词汇学习1.Asmellygascameoutofthecracks.smelly:smell+y=adj.smelln./v(smelt/smelled)Neverputoffwhatyoucandotodayuntiltomorrow.扩展:n.+y构成形容词blood----mud----sun-----cloud----rain----wind---taste----dream----ice----greed----fat----fog-----health→wealth→4.Buttheonemillionpeopleofthecity,whothoughtlittleoftheseevents,wereasleepasusualthatnight.thinkof想起，考虑thinklittleof不重视，忽视thinknothingof认为没什么thinkbadly/poorly/illof对……看法不好，评价很低thinkwell/much/highly/alot/agreatdealof对……重视/高度评价5.Itseemedasiftheworldwasatanend..atanend=finished结束，终结（作表语）★Wewereveryhappywhentheworkwasatanend.★attheendof“在…尽头；在…末”★bytheendof“到/截止……末”；主句一般用完成时★intheend意思“最后、终于”=atlast/finally1.Washyourhandsattheendof_theexperiment.2.HowmanyEnglishwordshadyoulearnedbytheendof_lastNeverputoffwhatyoucandotodayuntiltomorrow.term?3.Hetriedvariousjobsand_intheend_becameateacher.7.Infifteenterriblesecondsalargecitylayinruins.在可怕的15秒钟内，一座大城市就沉沦在一片废墟之中。lie(laylain)处于某种状态;躺，平躺，平卧平放中文原形过去式过去分词现在分词说明放置产卵laylaidlaidlaying及物动词躺;位于lielaylainlying不及物动词说谎lieliedliedlying不及物动词11.shockn.震惊打击Hissuddendeathwasagreatshocktohisfamily.shockvt.使震惊使震动Peoplewereshocked(shock).我们对这个消息感到震惊。Wewereshockedatthenews.Thenewsisshocking(shock)表示情感的动词excite,surprise,interest,bore,move,shock,disappoint,satisfy,变为形容词时可加ing(指物）或加ed(指人）短语句型过关burstintosth.=burstoutdoingItseemedasifatanend=Neverputoffwhatyoucandotodayuntiltomorrow.finishedthinkwell/highlyofinruinsItisnowonder(that)=Nowonder(that)all…not…=notall…该句为部分否定beburiedin…=buryoneselfin…