虚拟语气大杂烩类别用法例句If引导的条件从句与现在事实相反从句动词:过去式(be用were)主句动词:should/would/could/might+动词原形Ifhewerehere,hewouldhelpus.与过去事实相反从句动词:had+过去分词主句动词:should/would/could/might+have+过去分词IfIhadbeenfree,Iwouldhavevisitedyou.与将来事实相反从句动词:过去式/should+动词原形/were+不定式主句动词:should/would/could/might+动词原形Ifitshouldraintomorrow,wewouldnotgocamping.“should+动词原形”类表示“坚持、命令、要求、建议”的demand,suggest,order,insist后接的从句中动词为should+动词原形Hesuggestedthatwenotchangeourmind.在Itisnecessary/importantthat等从句中,谓语动词用should+动词原形Itisnecessarythatweshouldapplytheoriestopractice.Itistimethat…句型中动词用过去式或should+动词原形It’shightimethatweleft.现在---did/were过去---haddone类将来---could/woulddowish后的从句中分别用过去式,过去完成式和could/would+动词原形表示与现在,过去和将来情况相反IwishIcouldbeapopsinger.asif引导的状语从句中动词用过去式或过去完成式和could/would+动词原形,表示与现在,过去和将来情况相反Theyaretalkingasiftheyhadbeenfriendsforyears.Ifonly句型中动词常用过去式,或者过去完成式和could/would+动词原形,表示强烈的愿望Ifonlyourdreamhadcometrue!wouldrather所接的从句中动词用过去式,或者过去完成式Iwouldratheryoustayedathomenow.练习:1.如果出国,我会去美国。2.如果他要是抓紧点,他就赶上火车了。3.我真希望昨晚参加了的朋友生日宴会。4.真希望知道他现在在哪里。5.他坚持说我们应该立刻出发。6.我们有必要现在去散散步。7.我们悉心照料病患是很重要的。8.我宁愿你没有那样对待那个乞丐。9.我宁愿不认识你。10.到了该上学的时候了。11.他对待那个男孩好像是自己的孩子一样。12.那时,他说的像是知道了那件事一样。13.我要是昨天看了那部电影就好了!14.我要是和他一样强壮就好了!练习:1.如果出国,我会去美国。IfIwentabroad,Iwould/could/should/mightgotoAmerica.2.如果他要是抓紧点,他就赶上火车了。Ifhehadhurried,hewould/could/should/mighthavecaughtthetrain.3.我真希望昨晚参加了的朋友生日宴会。IwishIhadattendedmyfriend’sbirthdaypartylastnight.4.真希望知道他现在在哪里。IwishIknewwheresheis.5.教授建议我们多做些阅读。Theprofessorsuggested/advised/proposed/recommendedthatwe(should)domorereading.6.他坚持说我们应该立刻出发。Heinsistedthatwe(should)setoffatonce.7.我们有必要现在去散散步。It’snecessarythatweshouldhaveawalknow8.我们悉心照料病患是很重要的。It’simportantthatweshouldtakegoodcareofthepatient.9.我宁愿你没有那样对待那个乞丐。Iwouldratheryouhadn’ttreatedthebeggarlikethat.10.我宁愿不认识你。IwouldratherIdidn’tknowyou.11.到了该上学的时候了。Itis(high)timethatyouwent/shouldgotoschool.12.他对待那个男孩好像是自己的孩子一样。Hetreatstheboyasifhewerehisownson.13.那时,他说的像是知道了那件事一样。Hespokeasifhehadknownaboutit.14.我要是昨天看了那部电影就好了!IfonlyIhadseenthefilmyesterday!15.我要是和他一样强壮就好了!IfonlyIwereasstrongashim!