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1、Unit3UnderstandingeachotherGrammarandusageUnrealconditionalsstateaconditionorsituationthatisnotrealorisimaginary.Unrealconditionals虛擬語氣虛擬語氣用來陳述一個不真實或者想象的情況。Weuseunrealconditionalstostateapresentconditionorsituationthatisnotrealorisimaginary.IfIgotmarriedinU
2、K,Iwouldexpectapresent.2)IcouldreachthebookifIwereabittaller.3)IfIhadthechance,Imightwanttobeatranslator.我們用虛擬語氣陳述現(xiàn)在不真實或想象的情景。Weformunrealpresentconditionalslikethis:If…was/were/did…,…would/could/mightdo…1.假如現(xiàn)在我有更多的時間,我就會學(xué)習(xí)德語。IfIhadmoretimenow,IwouldstudyGe
3、rman.2.要是我象你一樣年輕,我就會找時間鍛煉。IfIwere/wasyoungasyou,Iwouldfindtimetoexercise.Practice:Would,couldandmightareofteninterchangeable,butwithsomedifferenceinmeaning.would→intention;plancould→ability;possibilitymight→probability2)InwrittenEnglishorinformalsituation,w
4、eusuallyusewereinIf-clausesinplaceofwas.However,ineverydayconversation,wasisoftenused.TIPWealsouseunrealconditionalstorefertoanimaginarypastaction.1)Ifyouhadjoinedthechatroomtenminutesago,youwouldhaveknownwhatweweretalkingabout.2)Ifthemanhadpointedwithhisfi
5、rstfingerwhilehewasinBrunei,everyonewouldhavethoughtthathewasveryrude.我們用虛擬語氣表示想象中發(fā)生在過去的動作。Weformunrealpastconditionalslikethis:If…h(huán)adbeen/done…,…would/could/mighthavedone…1)如果他抓緊時間,他本來能趕上那趟火車。Ifhehadhurried,hecouldhavecaughtthetrain.2)如果你昨天告訴他,他也許會提些建議了。If
6、youhadtoldhimyesterday,hemighthavemadesomesuggestions.Weuseunrealfutureconditionalstotalkaboutimaginaryfuturesituations.1)IfIhadtimetomorrow,Iwouldcertainlyhelpyou.2)IfIweretofailmyMathstest,Iwouldhavetotakeitagainattheendoftheterm.3)Ifheshouldcometomorrow,
7、Iwouldtalktohimaboutit.我們用虛擬語氣表示想象中發(fā)生在將來的情景。Weformunrealfutureconditionalslikethis:If…was/were/did/should/wereto…,…would/should/mightdo…1)假如我要出國,我就會去法國。IfIweretogoabroad,IwouldgotoFrance.2)萬一明天下雨,我們的郊游就推遲。Ifitshouldraintomorrow,ourpicnicwouldbeputoff.Wecana
8、lsoputshould,wereandhadatthebeginningofanunrealconditionalsentence.Inthiscase,ifisnotneededanymore.Ifyoushouldmakeamistake,youshouldnotbeembarrassed.→Shouldyoumakeamistake,youshouldnotbeembarrassed.2)I