表语从句精讲讲义-2025届高三英语上学期一轮复习专项

表语从句 在复合句中，位于系动词之后，用一个完整的句子充当表语成分的就是表语从句。 常见系动词 1. be 动词(am/is/are) 2. 感官动词(feel/look/smell/sound/taste) 3. 表似乎(seem/appear) 4. 表变化词(get/become/turn/grow/make/come/go/fall/run) 5. 表保持(remain/keep/stay/continue/stand/rest) 从属连词 不充当成分 That(在句首不能省略) Whether because 连接代词 在句子中作主语，宾语，表语，定语 Who，whoever，whom，what，whatever，whose，which As if/as though 连接副词 在句子中作状语 When，where，why，how…… 找表语从句 确定系动词，系动词之后与主语和系动词一起构成主系表结构的句子。 1. that引导表语从句，that在句子中不作成分，没有意义，只起到连接作用，一般不做省略。（如果主语是要求/建议/命令等词，表语从句用“should+动词原形”） 要求:request, requirement, insistence 建议:idea,advice,suggestion,proposal,recommendation, notion 命令:order，instruction The fact is that he doesn't really try.事实是他没有真正努力. The trouble is that I have lost my way.麻烦的是我迷路了 My suggestion is that we should tell him.我的建议是我们应该告诉他 My idea is that we should start making preparations right now.我的想法是我们应该现在做准备 2. whether引导的表语从句，不充当任何成分，不可省略（不可用if） The question is whether the film is worth seeing. 问题是这部电影是否值得看。 The doctor's doubt is whether she will survive. 医生不确定他能不能会下来。 3. because引导表语从句(because的同义词since/as/for不可以引导表语从句) That's because you can't appreciate music.这是因为你不能欣赏音乐。 This is because she has already seen the film.这是因为她已经看过这部电影了 4. 连接代词who/whom/whose/what/which……引导表语从句 The problem is who we can get to replace her. 问题是我们能找到谁去替换她呢。 The question is who(m) we should trust. 问题是我们应当相信谁。 His puzzle is whose money it belongs to. 他的困惑是这钱是谁的。 My concern is what he really expects to get from us. 我关心的是他到底想从我们这里得到什么。 What I want to know is which road we should take. 我想知道的是我们应走哪条路。 5. as if/as though引导表语从句(常用虚拟语气) The clouds are gathering. It looks as if it is going to rain.云聚集，看起来像是要下雨了（与事实相符用陈述语气） It looks as if he were from the Mars. 他看起来像来自火星（与事实不符用虚拟语气） 6. 连接副词when/where/why/how....引导表语从句 That was when I was fifteen这是我15岁时发生的事。 That's where I first met her那就是我第一次遇见她的地方。 That's why I object to the plan. 这就是我反对这个计划的原因。 The problem is how we can find him. 问题是我们如何找到他。 7. 表语从句的常见句型 ①be+that从句 The fact/ point/ reality/ chance is that.. ②be+疑问词从句 The question/problem is whether/ when/ where/ why.... ③The reason( why...) is that.. 主语是reason时，只能用that引导 ④It is because...+原因 ⑤It is why...+结果 ⑥My suggestion/advice/requirement/order/request is that+主语+(should) do sth. 学科网（北京）股份有限公司 $$