考研英语核心语法
--有“法”可依
主讲人:薛冰老师(SnowIce)
虚拟语气:
1.用于状语从句中
2.用于主语从句中
3.用于宾语从句中
4.用于表语从句和同位语从句中
用于状从中(多见于if从句):
1.与现在相反:
从句:if+主语+did/were,
主句:主语+would(could,should,might)+do。
2.与过去相反:
从句:if+主语+haddone/hadbeen,
主句:主语+would(could,should,might)+have
done(been)。
主句:主语+would(could,should,might)+do。
从句:if+主语+wereto(should)+do,
3.与将来相反:
用于主从中:
Itisnecessary/important/crucial/criticalthatsb/sth+(should)do…
例:
Itisnecessarythatyou(should)putonasuittoattendherwedding.
Itisimportantthathesubmithisplanbeforethedeadline.
用于宾从中:
表命令、建议和要求的动词一般要接
虚拟语气,即V+sb(should)do.advise,agree,demand,insist,command,decide,ensure,order,instruct,propose,recommend,require,request,suggest,urge等。
?注:
?当suggest表示“暗示,表明”之意,suggest后的宾语从句不使用虚拟语气,应使用陈述语气。如:
?Thesmileonhisfacesuggestedthathewassatisfiedwithourwork.
用于表语从句和同位语从句中:
在suggestion,proposal,order,plan,idea,request,advice等名词后的表语从句和同位语从句中要用虚拟语气,其构成是“should+动词原形”,should可以省略。
?
?例:
?Myideaisthatwe(should)thinkitoverbeforeacceptingit.
?Weallagreedtohissuggestionthatshedeserveareward.
wouldrather(wouldassoon,wouldsooner)
sbdidsth.
特殊结构:
Itis(about/high)timesb/sthdidsth.
虚拟语气中if状语从句的倒装:
如果虚拟语气的if状语从句中有助动词had、
were或情态动词should、could、might等,则可以去掉if,将had、were或should等置于句首进行倒装。
例:
Ifhehadnotbeenpromoted,hewouldneverhaveremainedwiththecompany.…….
IfIcouldwinthelottery,Iwouldbuya
car.…….
IfIhadenoughmoney,Iwouldhelpher.
→HadIenoughmoney,Iwouldhelpher.(x)
Ifyouwereto/shouldchangeyourmind,
noonewouldblameyou.…….
AtBostonCollege,forexample,youwouldhavetocompleteanextrayearwereyoutoswitchtothenursingschoolfromanotherdepartment.
(2017.Text3)
你就是下一个成功者!
祝大家金榜题名!