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希望英语2语法

发布时间:2014-05-15 10:42:23  

情态动词的特殊用法
1、在否定疑问句中,情态动词通常都用缩略形式。
2、would可用来表示过去常发生的行为或动作。
3、情态动词+have+过去发词结构用于对过去所发生的事进行推测。
4、needn’t+have+过去分词表示在行为发生后说话人认为“本不必去做”
5、should(not)+have+过去分词用于表示责备;肯定式表示说话人认为“该做的事没有做”,而否定式则表示“不该做的却做了”。
A.When we were students we would spend our holidays in the countryside.
B.You should have come here on time.
C.Can't you help me look after the baby while I'm busy?
D.You needn't have bought me such an expensive watch.
E.She must have been caught in a traffic jam.


倒装句型的特殊用法
1、在主谓状和主系表句型中,当状语或表语前置时句子须全部倒装。
2、带否定意义的词或带否定词的短语位于句首时,句子须部分倒装。
3、当only,often,so等副词位于句首时,句子须部分倒装。
4、当out,in,away,down,up等方位副词位于句首时,句子须全部倒装。
A.Away ran the man as he saw the policeman.
B.Often does my mom tell us to study hard.
C.In no way can he solve the problem if he hesitates.
D.Under the table lies a white cat.


虚拟语气的特殊用法1
1、虚拟条件从句中should,had或were可以前置,省去if。
2、条件从句的时态与主句的时态可以不一致。
3、有些虚拟式中只出现主句。
4、有些虚拟式中只出现虚拟条件从句。
A.If you had followed his advice ,you would not be waiting for the next train now.
B.If only Ihad a car.
C.Were Ifive years younger,I would learn another language.
D.A wise man would not lend him such a large sum of money.


虚拟语气的特殊用法2
1、由without,but for引出的虚拟式
2、有or,otherwise引出的虚拟式
3、由lest,for fear that,fearing that等引出的虚拟式
4、有as if,as though引出的虚拟式
5、由would rather/would sooner引出的虚拟式
A.She gave him a lot help,or he would not be so successful now.
B.Please remind me lest I should forget.
C.I couldn't have passed the piano test without your guidance.
D.She treated the boy as if he were her own child.
E.I would rather you stayed here for dinner.


虚拟语气的特殊用法3
1、在表示建议、命令、请求等动词后的宾语从句中,谓语用should+动词原形,should可以省去。
2、在important,necessary等形容词后的从句中谓语用should+动词原形,should可以省去。
3、在表示建议、命令、请求等动词后的同位语从句中谓语用should+动词原形,should可以省去。
4、在表示建议、命令、请求等动词被动式后的从句中谓语用should+动词原形,should可以省去。
A.It is important that children be taught at an earlier stage.
B.He suggested that the assig

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