2016届高考英语二轮语法专项复习课件：专题6 情态动词与虚拟语气（新人教版）_高考复习指南

2016届高考英语二轮语法专项复习课件：专题6 情态动词与虚拟语气（新人教版）

　　(1)错综时间条件句在句子If you had worked hard yesterday,you would be tired now.(如果你昨天工作很辛苦的话,那你现在就会很疲劳。)中,主句的动作和从句的动作发生的时间不一致。 (2)如果虚拟条件句中含有were/had/should,有时可把if省略,将were/had/should提至主语之前,形成倒装句;但否定形式的not不可提到主语前。一二三 2.含蓄条件句有时假设的情况并不以条件从句表示,而是由otherwise,but,or,without等介词或副词来表示虚拟条件。有时亦可用分词短语或者名词短语来代替条件状语从句,要注意对语气的判断。例如: I would have come sooner but I didn’t know that they were waiting for me. 我本该早一些到,但我不知道他们在等我。 Born in better times(=If he had born in better times),he would have been a scholar. 如果出生在更好的时代,他早就成为学者了。 A few hours earlier(=If you had come a few hours earlier),you would have been able to meet the famous writer. 要是你早来几个小时,你就能见到这位著名的作家了。一二三 3.虚拟语气在名词性从句中的运用 (1)wish后面的宾语从句一般用虚拟语气,表示一种不可能实现的愿望。其谓语动词构成形式为: 过去时:表示现在不可能实现的愿望过去完成时:表示过去不可能实现的愿望 could/would/might+动词原形:表示将来不可能实现的愿望例如: I wish (that) I were a bird and could fly freely in the sky. 我希望我是只小鸟,能在天空自由飞翔。一二三 (2)在主语从句中,下面的几种情况谓语动词通常用“should +动词原形”,should可省略。 ① “It is+形容词+that...”句型。常见的形容词有important,necessary,natural,funny,strange,surprising,astonishing 等。如: It is necessary that we (should) master a foreign language. 我们掌握一门外语是有必要的。 ② “It is +名词+that...”句型。常见的名词有advice,suggestion,proposal(提议,建议),requirement,desire,order等。如: It was a pity that you should be so careless. 你这么粗心真是可惜。一二三 ③ “It is+动词的过去分词+ that...”句型。常见的动词有advise,order,propose,request,suggest,demand,require 等。如: It was ordered that parking (should) not be allowed in front of the building. 规定楼前不准停车。 (3)在下列动词后的宾语从句中,谓语动词用“should+动词原形”,should可省略。这类动词有:insist,urge,order,command,request,demand,require,suggest,advise,propose,recommend等。如: She suggested we (should)leave here at once. 她建议我们马上离开。一二三