高中英语 Module5 Grammar课件 外研版选修6.ppt

module5 grammar 1 真实条件句 表示提出的假设完全可以成为事实 谓语动词用陈述语气 iftimepermits we llgofishingtogether 如果有时间的话 我们就一起去钓鱼 条件从句 2 虚拟条件句 表示所提出的假设实现的可能性极小与事实相反 谓语动词用虚拟语气 虚拟语气也可以表示愿望 请求及建议等 ifithadrainedyesterday wewouldhavestayedathome 如果昨天下雨的话 我们就会留在家里 一 与现在事实相反的假设 从句 if 主语 动词的过去式 be用were 主句 主语 would should could might 动词原形 ifiwereyou iwouldgowithhim ifiwereyou ishouldbuyit 虚拟条件句 的句型 注意 如果动作在进行中 主句要用 主语 wouldbe 进行式动词 iftheywerehere hewouldbespeakingtothemnow 二 与过去事实相反的假设 从句 if 主语 had 过去完成式动词 主句 主语 would should could might have 过去完成式动词 ifyouhadstudiedharderlastterm youcouldhavepassedexam ifithadsnowed iwouldhaveskiedinthepark 注意 如果动作在进行中 主句要用 主语 would have 完成进行式动词 iftheyhadbeenhere hewouldhavebeenspeakingtothem 三 与将来的事实可能相反 从句 if 主语 should 或were 动词原形 主句 主语 would could should might 动词原形 ifitshouldrain thecropswouldbesaved ifhewerehere iwouldgivehimthebooks 注意 如果动作在进行中 从句 不是主句 要用 if 主语 过去进行式动词 ifshewerestayingherenow iwouldletherridemyhorse 四 从句的if有时可省略 那么从句中的动词 were had should 就得移到主语前面 原句 ifhehadtriedit hecouldhavedoneit 去if hadhetriedit hecouldhavedoneit 五 有时虚拟条件句的从句和主句地动词动作时态会不一致 1 从句表示过去 主句表示将来 iftheyhadstartedtheearlymorningyesterday theywouldbeherenow 2 从句表示将来 主句表示过去 ifiwerenottomakeapreparationformyexperimentthisafternoon iwouldhavegonetoseethefilmwithyoulastnight 3 从句表示过去 主句表示将来 ifwehadn tmadeadequatepreparations weshouldn tdaretodotheexperimentnextweek 4 从句表示将来 主句表示现在 ifweshouldn thaveanexamthisafternoon iwouldgoshoppingnow giveyourownanswerstothequestions ifyoucouldcloneaman wouldyoudoit yes iwould no iwouldn t example 2 ifyouwereascientist wouldyouworkforacloningcompany 3 ifyouhadthemoney wouldyoupayscientiststocloneyou 4 ifcloningbecameeasy wouldthatbeagoodthing inyouropinion ifyouwereheadofthegovernment wouldyouallowcloning ifscientists clone me i feel verystrange wouldfeel completethesentences cloned 2 ifgovernments notallow cloning manyscientists be veryangry wouldbe didn tallow 3 ifi meet aclonedcopyofmyself i runaway wouldrunaway met 4 ifcloning be easy theworld be averydifferentplace wouldbe were was 5 ifclonedanimals live untilthey be old scientists be verypleased wouldbe lived were ihaveknownmyfriendrobin 1 manyyearsandamveryfond 2 him buthehassomestrangeideas forexample hesaysthatifhe 3 themoney he 4 askscientiststoclonehim wheniaskhim completethepassage for of had would 5 hewouldlikethis herepliesthathe 6 lovetomeetanidenticalcopyofhimself idon tfeelthesameatall ifi 7 anidenticalcopyofmyself i 8 runasfastasicouldintheoppositedirection ican tthinkofanything 9 awful butrobinhasotherstrangeideas forexample would why would met saw more hesaysthat 10 scientistsallowedhim hewould 11 tothemoon whenhesaysthis ireplythatifit 12 possiblei 13 liketolivetobetwohundred metoo robinreplies 14 heknowsiamjoking theproblemis iknowheisserious ifheadreameror 15 hisdreamsbecomepossibleoneday ihavenoidea if go fly travel were would but could 1 ifyouhadn tgonewithtomtothepartylastnight a youwouldmeetjohnalreadyb youwon thavemissedjohnc youwillhavemetjohnd youwouldhavemetjohn d 2 supposingthisship doyouthinktherewouldbeenoughlifejacketsforallthepassengers a wassinkingb hassunkc weretosinkd sunk c 3 theinsectswoulddevourallourcropsandkillourflocksandheads if fortheprotectionwegetfrominsect eatinganimals a itisnotb itwerenotc wereitnotd theywerenot b 4 frankly i dratheryou anythingaboutitforthetimebeing a dob don tdoc didn tdod willnotdo c 5 ifi inthetwenty firstcentury i myvacationinaverydifferentway a shoul