高二英语下学期期末知识点总结：语法.doc

高二英语下学期期末知识点总结：语法及时对知识点进行总结，整理，有效应对考试不发愁，下文由xx高中xx为大家带来了高二英语下学期期末知识点总结，欢迎大家参考阅读1)表语从句1. 定义：用作表语的从句叫做表语从句2. 构成：关联词+简单句3. 引导表语从句的关联词的种类：(1) 从属连词that如：The trouble is that I have lost his address. 麻烦是我把他的地址丢了2) 从属连词whether, as, as if如：He looked just as he had looked ten years before. 他看起来还与十年前一样The question is whether they will be able to help us. 问题是他们是否能帮我们注：从属连词if一般不用来引导表语从句，但as if却可引导表语从句，如：All this was over twenty years ago, but its as if it was only yesterday.这都是20多年前的事了，但宛如昨天一样能跟表语从句的谓语动词一般为系动词be, seem, look等。

如：It looked as if it was going to rain. 看起来天要下雨了3)连接代词who, whom, whose, what, which, whoever, whatever, whichever连接副词 where, when, how, why如：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 how he did it. 问题是他是如何做此事的That was what she did this morning on reaching the attic. 那就是她今晨上了阁楼干的解释：1. 连词because可引导表语从句如：I think it is because you are doing too much. 我想这是因为你做得太多2. 在一些表示建议、劝说、命令的名词后面的表语从句中，谓语动词用虚拟语气should+动词原形表示，should可省略如：My suggestion is that we (should) start early tomorrow. 我的建议是我们明天一早就出发。

2)主语从句1. 定义：用作主语的从句叫做主语从句2. 构成：关联词+简单句3. 引导主语从句的关联词有三类：(1) 从属连词that 如：That they were in truth sisters was clear from the facial resemblance between them.很明显，她们确是亲姐妹，她们的脸型很相似2) 从属连词whether如：Whether hersquo;ll come here isnrsquo;t clear. 他是否会来这里还不清楚转眼之间一个学期也将过去了，同学们也迎来了期末考试，希望上文为大家提供的高二英语下学期期末知识点总结，能帮助到大家精编高二下册英语期末备考知识点讲解2021学年高二英语期末备考重点复习3。