新编英语语法教程第16讲.pptx
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1、第16讲 虚拟式o16.1 be-型虚拟式obe型虚拟式是指动词永远使用原形,不管主语是什么,动词都为原形.o1)用于表示命令,决定,建议等词语之后的that 分句中oA)表示命令决定建议的动词之后的从句,如动词:decide,decree,odemand insist,move,order,prefer,propose,recommend,request,suggest,vote 等oHe ordered that all the books be sent at once.oWe propose that somebody neutral take the chair.oThe docto
2、r insisted that he not eat meat.oB)表示命令决定建议的名词之后的从句,如名词:decision,decree,demand,instruction,order,requirement,resolution 等oWe were faced with the demand that this tax be abolished.oYour advice that she wait till next week is reasonable.oHis order that the troops not be sent at once was carried out.oC
3、)用在一些形容词后的真实主语从句中.如形容词:advisable,appropriate,desirable,essential,fitting,imperative,important,impossible,necessary,obligatory,proper等.oIt is essential that all the facts be examined first.oIt is necessary that he come back without delay.oI thought it advisable that an armed guard stand in readiness.
4、o2)用于由if,though 等引导的分句中.o推测,让步,防备等含义.if,though,owhatever,lest,so long asoIf the rumour be true,everything is possible.oThough everyone desert you,I will not.oWhatever be his defense,we cannot tolerate this disloyalty.o3)用于某些公式化语句中oLong live the Peoples Republic of China.oGod bless you!oSo be it.oSuf
5、fice it to say that I know nothing.oFar be it from me to call him a thief.oI will stay here with you if need be.o16.2 were-型虚拟式owere 型虚拟式只有一种形式,即不管主语是什么,动词一律用过去式,be 动词一律用 were.o1)用于某些状语分句中.常用于if,if only,as if,as though,though 引导的非真实从句oIf I were you,I should wait till next week.oIf it were to rain,th
6、e game would be put off.oHe spoke to me as if I were deaf.oHe behaves as though he were better than us.oIf only I were not so nervous.o2)用于wish,would rather,suppose,imagine 引导的从句中,也表示非真实的臆想.oI wish it were spring all the year round.oId rather I were not at the site of the accident.oSuppose the earth
7、 were falt.oJust imagine everyone were to give up smoking.o16.3 假设意义表示法综述o1)表示假设意义的一些结构oA)Its time thatoIts time we went to bed.oYouve been working hard.Its time you took a rest.oIts high time we left this place.oB)I would rather/sooner thatoI would rather she got home a little earlier.oId rather he
8、 told me the truth.oI would rather he had been present.oC)If onlyoIf only I knew her address.oIf only I had gone by taxi.oD)behaves as if/as thoughoHe behaves as if he owned this place.oShe was sitting quietly in the garden as if/as though nothing had happened to her.oE)I wishoI wish I didnt have to
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- 新编 英语语法 教程 16
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