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《专四英语语法考点(上课课件).ppt》由会员上传分享,免费在线阅读,更多相关内容在PPT专区-天天文库。
1、专四英语语法考点考点一虚拟语气考点1.与现在事实相反。从句谓语动词用did(be用were),主句谓语动词would(should,could,might)+do;if…+did/were,…should/would/could/might+doIfIwereyou,Iwould….考点2.与将来事实相反。从句谓语动词用:did(should+do或were+todo),主句谓语动词用:would(should,could,might)+do。if…+did;should/wereto+do,…should/would/could/might+d
2、o。考点3.与过去事实相反。从句谓语动词用haddone,主句谓语动词用would(should,could,might)+havedone;if…had+done,…should/would+have+doneHadJudybeenmorecarefulonthemathsexam,she_______muchbetterresultsnow.A.wouldbegettingB.couldhavegotC.mustgetD.wouldget考点4.虚拟条件句if可以省略,但从句的语序要用到装,即将were,had或should移至主语的前面形成
3、倒装,但否定词not不前移。例如:65.___,hewouldnothaverecoveredsoquickly.(05年)A. Hadn'thebeentakengoodcareofB. HadhenotbeentakengoodcareofC. HadnothebeentakengoodcareofD. Hadhebeennottakengoodcareof考点5.insist(一个坚持);ordercommand(两道命令);suggest,advise,propose(三条建议);ask,require,reque
4、st,demand(四点要求)及相应的名词的从句,谓语要使用:should+动词原形或动词原形例如:58.Itwasrecommendedthatpassengers___smokeduringtheflight.(04年)A. notB.neednotC.couldnotD.wouldnot考点6.Itis+advisable,essential,important,,imperative,incredible,strange,natural,necessary等等相关的从句,谓语要使用:should+动词原形或动词原形考点7.itishi
5、gh(about)timethat的结构中,从句使用一般过去式。例如:It’stimethatwedidourhomework.注意与以下两种句型的区别:(1)it’stime(+for+sb.)+动词不定式,该句型表示“时间刚好做某事”,是陈述语气,表达一种事。如:it’stimeforustohavearest.我们该休息了。(2)it’sthefirst(second/third)time+that从句,该句型中的that从句要用完成式,表示一种经历。如:it’sthefirsttimethatIhavebeenhere.这是我第一次到这儿
6、来。考点8.muchas尽管,虽然,引导让步状语从句,从句中用wouldhavedone表示假设,可以使说话人的语气变得十分委婉,真诚。例如:52.Muchas____,Icouldn’tlendhimthemoneybecauseIsimplydidn’thavethatmuchsparecash.(99年)A.IwouldhavelikedtoB.IwouldliketohaveC.IshouldhavetolikeD.Ishouldhavelikedto考点9.ifonly表示要是…就好了相当与wish,asif/asthough的用法。
7、与现在事实相反:动词过去式与过去事实相反:had+done与将来事实相反:could/would+do例如:52.IfonlyI__playtheguitaraswellasyou!(06年)AwouldBcouldCshouldDmight考点10由某些表示条件或假设的介词、连词或介词短语组成的虚拟条件句。如:butfor(若非)butthat,(若非)onconditionthat(如果),supposing,provided(假设,如果),without,etc.Butforyourhelp,Iwouldn’thavefinishedth
8、ework.Providedthatyouhadtheopportunitytogoabroad,wherewouldyougo?(1)