资源描述：
《《重点语法归纳》ppt课件》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、重点语法归纳虚拟语气:条件式和命令式非谓语动词:不定式、动名词和分词倒装句虚拟语气if引导的虚拟条件句的用法如下：时间if条件句的谓语形式主句的谓语形式现在Were行为动词一般过去时Would(could,should,might)+动词原形)过去过去完成时Would(could,should,might)+现在完成式将来wereto+动词原形Would(could,should,might)(should)+动词原形虚拟语气命令式虚拟语气可归纳如下1）wish后宾语从句的虚拟语气Williamwis
2、hesnowthathe____EnglishinsteadofFrenchwhenhewasinhighschool.A.havestudiedC.hadstudiedB.studiesD.studied答案是C。Were型虚拟2）在ifonly感叹句中IfonlyI____whatyouwanted!A.knewC.hadknownB.knowD.haveknown答案是C。Were型虚拟3）在asif/asthough从句中Sheactsasifshe____theonlypersonaffec
3、tedbytheruling.A.isC.wouldbeB.wereD.willbe答案是B。Be型虚拟4）在wouldrather(sooner)后的that从句中I’dratheryou____thoseimportantdocumentswithyou.A.don’ttakeC.won’ttakeB.didn’ttakeD.nottake答案是B。Be型虚拟5）在suggest等动词及其相应名词之后的that从句中advise,agree,ask,command,decide,demand,de
4、sire,insist,maintain,move（提议）,order,propose,recommend,request,require,rule,suggest,urge,etc.Be型虚拟Thedoctorsuggestedthatyourbrother____hisrighthand.A.avoidtouseC.avoidusingB.hasavoidedusingD.avoidedtouse答案是C。Be型虚拟常见的相应名词有：advice,command,agreement,decisio
5、n,demand,desire,motion,proposal,recommendation,request,requirement,suggestion,idea,order,plan,policy,wish,etc.Be型虚拟Ourdemandisthatanotherexperiment____.A.shallbemadeC.mustbemadeB.willbemadeD.bemade答案DBe型虚拟6）在Itis/was+形容词后的that从句中这类形容词有：important,advisab
6、le,appropriate,essential,necessary,strange,natural,ridiculous,possible,preferable,proper等。Be型虚拟It’sadvisablethattheSportMeets____owingtothebadweather.A.mustbeputoffB.beputoffC.couldbeputoffD.oughttoputoff命令式虚拟语气7）用在以lest,forfearthat和incase所引导的目的状语从句中，这时
7、谓语动词多用should加动词原形构成。如：Takeanumbrellawithyouincaseitshouldrain.带上雨伞吧，以防下雨。特殊的虚拟语气在It’s(high,about)time后的that从句中,谓语动词一般用过去式。“Isn’titabouttimeyou____todosomework?”A.beginC.shouldbeganB.havebegunD.began答案是D。其他情况的虚拟语气1）公式化的句子中的虚拟语气：用动词原形（不和主语保持人称、时态和数的一致）或“m
8、ay+动词原形”（经常倒装）构成的谓语来体现。如：公式化的句子Godblessyou!Mayyouenjoyyourholiday!Longlivepeace!Comewhatmay,we’llgoaheadwithourplan.其他情况的虚拟语气2）错综时间非真实条件中的虚拟语气：Ifwehadsetoutearlier,wewouldn'tbewalkingintherain.其他情况的虚拟语气3）在带有butfor引出的短语的句子中：Wewoul
