2023年高中英语语法之表语及表语从句用法归纳讲义
表语用法
断板龟
表语是用来说明主语的身份、特征和状态的，它常位于联系动词（be, become, appear, em等）之后。
一、名词作表语
男士头像图片
Africa is a big continent.
非洲是个大洲。
That remains a puzzle to me.
这对我还是个难题。
二、代词作表语
What's your fax number?
你的传真号是多少？
三、形容词作表语
I feel much better today.
我今天感觉好多了。
四、数词作表语
She was the first to learn about it.
她是第一个知道的人。
五、不定式或ing形式作表语
Her job is lling computers.
她的工作是销售电脑。
Our next step was to get raw materials ready.
电力安全我们下一步是把原料准备好。
六、介词短语作表语
The patient is out of danger.
评价汉武帝
病人脱险了。
I don't feel at ea.
我感到不自在。
七、副词作表语
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The sun is up.
太阳升起来了。
I must be off now.
现在我得走了。
八、从句作表语
This is what he said.
这就是他所说的话。
表语从句解析
名词性从句指充当名词成分的从句，下分很多类型，是英语学习的重点，可以说搞懂了名词性从句，你的英语水平就极大的提升了一个level，而表从句则是名词性从句非常重要的一种类别，也是最难搞懂的一个类别！
一、概念：
要弄懂什么是表语从句，就一定要知道什么是表语。表语用来说明主语是什么或者怎么样，由名词、形容词或相当于名词或形容词的词或短语充当，和连系动词一起构成谓语。
二、关联词：
1. 连系动词有be，look，em，sound，appear等。
eg. It looks as if a huge diamond.
2. 从属连词whether，as，as if / though。
eg. It sounds as if someone is knocking at the door.
3. becau，why。
eg. That's why I fall in love with him.
4. 连接代词who，whom，who，what，which，whoever，whatever，whichever
连接副词 where，when，how，why跑步通勤
eg. The problem is who we can get to replace her.
5. 从属连词that
eg. The trouble is that the key was broken.
三、虚拟语气
在表示建议、劝告、命令含义的名词后的表语从句，谓语动词需用“should+动词原形” 表示，should可省略。常见的词有：advice，suggestion，order，proposal，plan，idea等。
eg. My idea is that we (should) leave here tonight.
表语从句的构成：
关联词+简单句
引导表语从句的关联词的种类：
可接表语从句的连系动词有be，look，em，sound，appear等。
China is no longer what she ud to be.
今日的中国不再是过去的中国了。
The question remains whether they will be able to help us.
问题还是他们能否帮我们。
At that time，it emed as if I couldn't think of the right word.
当时，我似乎怎么也想不出一个恰当的字眼来。
从属连词whether，as，as if / though引导的表语从句。
He looked just as he had looked ten years before.
他看起来还与十年前一样。
It sounds as if someone is knocking at the door.
听起来好像有人在敲门。
becau，why引导的表语从句。
That's becau he didn't understand me.
那是因为他没有理解我。（That's becau…强调原因）
That's why he got angry with me.
那正是他对我生气的原因。（That's why…强调结果）
what引导的主语从句表示结果或名词reason作主语时，后面的表语从句表示原因时要用that引导，不宜用becau.
The reason why I was sad was that he didn't understand me.
我难过的原因是他没有理解我。
连接代词who，whom，who，what，which，whoever，whatever，whichever
连接副词 where，when，how，why
kazaaThe problem is who we can get to replace her.防疫办
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。
从属连词that
The trouble is that I have lost his address.
麻烦是我把他的地址丢了。
使用虚拟语气的表语从句
在表示建议、劝告、命令含义的名词后的表语从句，谓语动词需用“should+动词原形”
表示，should可省略。常见的词有：advice，suggestion，order，proposal，plan，idea等。
