2017届高考英语一轮语法专题复习课件：7 虚拟语气（新人教版）_高考复习指南

2017届高考英语一轮语法专题复习课件：7 虚拟语气（新人教版）

　　go to Dalian for sightseeing. 我们都同意他让我们去大连旅游的建议。

　　三、虚拟语气在as if/as though引导的从句中的运用如果as if引导的从句谓语动词与主句谓语动词所表达的动作同时发生，从句谓语动词用一般过去时；如果as if引导的从句谓语动词所表达的动作先于主句谓语动词所表达的动作，从句谓语动词用过去完成时；如果as if引导的从句谓语动词所表达的动作后于主句谓语动词所表达的动作，从句谓语动词用过去将来时。如：

　　He looks as if he were an artist.(同时) 他看起来像个艺术家。 She speaks English so fluently as if she had studied English in America.(先于) 她讲英语如此流利，好像她在美国学过英语。 He learns English so hard as if he would go to the USA.(后于) 他如此努力地学英语，好像他要去美国。四、虚拟语气在定语从句中的运用 It is (high) time (that)．..句型中，定语从句的谓语动词用一般过去时，或用should＋动词原形(其中should不能省略)。此句型意为“(现在)该……了”，用来表示提议。如： It is(high) time that you went to school. 你该去上学了。 It is (high) time that we should start out. 我们该出发了。考点警示使用虚拟条件句时要注意以下几点： 1．当条件状语从句表示的行为和主句表示的行为所发生的时间不一致时，被称为“错综时间条件句”。动词的形式要根据它所表示的时间做出相应的调整。如： If you had followed my advice just now，you would be better now. 如果你刚才听了我的建议，你现在就好多了。 If you had studied hard before，you would be a college student now. 如果你以前好好学习的话，你现在就是一名大学生了。 2．if省略句的应用。在虚拟条件状语从句中可省略if，把were，had，should提到句首，变为倒装句式。如： If I were at school again，I would study harder. →Were I at school again，I would study harder. 如果我还有上学的机会，我会更加努力地学习。 If you had come earlier，you would have caught the bus. →Had you come earlier，you would have caught the bus. 如果你来得早些，你就能赶上公共汽车。