应该怎么分辨虚拟语气和强调句

应该怎么分辨虚拟语气和强调句

虚拟语气虚拟语气的使用范围及判断一 虚拟语气表示一种不能实现的假设。该语法主要用于if 条件状语从句。也可用于主语从句、表语从句、宾语从句等。二 if 条件状语从句中虚拟语气的判断If 条件状语从句有真实条件句和非真实条件句。假设条件可以实现的句子为真实条件句（如在阴天说if it rains, we would not go out），反之为非真实条件句，要用虚拟语气。三 假设条件一般为：1） 与过去事实相反，从句谓语动词用过去完成时，主句动词为情态动词＋完成时态。e.g. If I had come here yesterday, I would have seen him.2） 与现在事实相反，从句谓语动词用一般过去时，主句动词为情态动词＋动词原形。e.g. If I were a teacher, I would be strict with my students.3） 与将来事实可能相反，从句谓语动词用过去将来时，主句动词为情态动词＋动词原形。e.g. If it should snow tomorrow, they couldn’t go out.主句谓语动词为情态动词（should, would, could）＋和相应的从句一致的动词形式。四 if 条件句中如果有were, should, had, 可以省去if, 并使用倒装句序。宾语从句中的虚拟语气一 wish后面宾语从句中的虚拟语气：根据从句的意义来判断：1．与现在和将来相反的事实，从句谓语动词用过去时态；e.g. I wish I were a bird.2．与过去相反的事实，从句谓语动词用过去完成时态。e.g. I wished he hadn’t done that.二 表示“要求、建议、命令”等动词后面的宾语从句中的虚拟语气从句用“should + 动词原形”构成。而且should 可以省去。用于此结构的动词有：advise, direct, agree, ask, demand, decide, desire, insist,order, prefer, propose, request, suggest等。e.g. I insisted that he (should) go with them.He suggest that a meeting (should) be held to discuss the matter.He demanded that I (should) help him.注意：当insist 表示“坚持认为”、suggest表示“表明，显示”时，不用虚拟语气。e.g. He insisted that he was honest.The look on his face suggested that he was quite satisfied with what I had done for him.三 would rather + 从句在这种结构中，从句的谓语动词用过去形式表示虚拟。e.g. I would rather you did this instead of me.主语从句中的虚拟语气一 It be + 形容词+ that…. (should)….用于该句型的形容词有： necessary, good, important, right, wrong, better, natural, proper, funny, strange, surprising, etc.e.g. It is necessary that we should get everything ready by the end of the week.It’s natural that he should feel hurt.一些名词也可用于此结构中，如 a pity, no wonder, …..二 It be + 过去分词＋ that……(should)……用于该结构中的过去分词是表示“建议、请求、命令”等词的过去分词。如： desired, suggested, requested, ordered, proposed等。e.g. It is desired that the building of the house be completed next month.三 It is time (about time/ high time) that…..(过去时动词形式或should + 动词原形)…..e.g. It is high time I went home now = It is high time I should go home now.表语从句、同位语从句中的虚拟语气在suggestion, proposal, order, plan, idea, advice, decision等需要具体内容解释的名词后的表语从句、同位语从句中，要使用虚拟语气、其谓语动词为： should + 动词原形。连接从句的that 不能省略。e.g. My suggestion is that we should go there at once.What do you think of his proposal that we should put on a play at the English evening?The proposal that we should stay longer in Shanghai was rejected.强调句1、陈述句的强调句型：It is/ was + 被强调部分（通常是主语、宾语或状语）+ that/ who（当强调主语且主语指人）+ 其它部分。e.g. It was yesterday that he met Li Ping.2、一般疑问句的强调句型：同上，只是把is/ was提到it前面。e.g. Was it yesterday that he met Li P
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