英语语法-表语从句
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一、连词（引导词） 4. as if/though引导的表语从句常置于连系动词后面。 as if/though引导的表语从句如果是事实，就用陈述语气，如果
与事实不符，就用虚拟语气。 (主句一般现在时从句就用过去式。主句是过去式，从句用过去完成时)。
It sounds as if/though somebody is knocking at the door. It looks as if he were her father.(与事实不符) Dark clouds are gathering. It looks as if it’s going to rain.
从句充当表语
表语从句
1. The fact is
主语
系
true . （简单句）
表语
表语用来说明主语的 身份, 性质，特征 和 状态。 常由名词, 形容词或相当于名词或形容词的词语或 从句充当。
2. The fact is that she cried .
主语 系 连词 从句主语 从句谓语
主句
表语从句
引导词
一、连词（引导词） 5. because和why也能引导表语从句。 2个句型。 A: The reason why … is that… B: It/this/ that is why (because) … ① The reason was that you don’t trust her. ② He was ill. That’s why he was sent to the hospital. ③ He was sent to the hospital. That’s because he was ill.
① My question is whether Linda is on diet. ② My question is whether Linda cried yesterday.
Exercises
• 医生真正怀疑的是我母亲是否能很快从重病中康复。
What the doctor really doubts is whether my mother will recover from the serious disease soon.
② The problem is that Alex doesn’t eat carrots. (Alex doesn’t eat carrots.)
引导词
一、连词（引导词） 在 表 “ 建 议 ， 劝 说 ， 命 令 ” 的 名 词 idea, suggestion, request,
proposal 等后面的表语从句中，谓语动词用“should + 动词原形”， should可省略。
• 现在的问题是这件事是否值得做。
The question is whether it is worth doing.
引导词
一、连词（引导词） 3. 当表语从句是特殊疑问句时，由连接代词或者连接副词引导。
因为连接代词 或连接副词在从句中担任一定的句子成分，具有一定的 意义， 也不能省略.
★连接副词 (when, where, how, why) whenever, however, 在从句中做状语.
（复合句）
在复合句中，用来充当表语的句子就叫表语从句
引导词
一、连词（引导词） 1. 当表语从句是 陈述句 时，连词由that引导，因为that在从句中 不作任何成分，也没有任何具体意思，但是却不可省略
① The fact is that Jack is clever. (Jack is clever.)
① My opinion is that it’s getting better and better. ② My suggestion is that we (should) start early tomorrow.
引导词
一、连词（引导词） 2.当表语从句是一般疑问句时，由连词whether引导，它们在从句中 不做任何成分，但因为whether翻译成：“是否”，具有一定的意义，也 不能省略。 注意： if 不引导表语从句
形容词充当表语
⑥ When I went to your house, you were out.
副词充当表语
⑦ No one was in the dorm, when she arrived.
介词短语充当表语
⑧ My job is to teach you English.
不定式充当表语
⑨ The reason why he came late was that his clock didn’t work.
Exercises
• 形势并不像外表所看到的那样。
The situation is not as it seems to be.
• 她看上去很担忧他父母的病情。
She looks as if she is worried about her father’s disease.
• 他好像疯了似的。
It was as though he were mad.
★连接代词 (what, who, whom, which, whose), whatever, whoever, whichever.
在从句中常做 主语.宾语.表语.定语
Exercises
• 我的问题是 这个女孩是谁.
My question is who the girl is.
• 麻烦的是 谁能替代他
The trouble is who can replace him.
• 那就是他所担心的。
That is what he is worried about .
• 我的建议是他应该减肥。
My advice/ suggestion is that he (should) lose weight.
引导词
③ The door remained closed. 动词过去分词充当表语
④ Mary’s daily job is cleaning the house. 动词- ing 形式充当表语
表语是用来说明主语的身份、性质、品wk.baidu.com、特征和状态的。
定义
⑤ The house is not only large but also beautiful.
语法飞跃 ——表 语 从 句
The Predicative Clause
定义
① The person stood in front of you just now is my headmaster. 名词充当表语
② I didn’t know that it was you at that time. 代词充当表语
与事实不符，就用虚拟语气。 (主句一般现在时从句就用过去式。主句是过去式，从句用过去完成时)。
It sounds as if/though somebody is knocking at the door. It looks as if he were her father.(与事实不符) Dark clouds are gathering. It looks as if it’s going to rain.
从句充当表语
表语从句
1. The fact is
主语
系
true . （简单句）
表语
表语用来说明主语的 身份, 性质，特征 和 状态。 常由名词, 形容词或相当于名词或形容词的词语或 从句充当。
2. The fact is that she cried .
主语 系 连词 从句主语 从句谓语
主句
表语从句
引导词
一、连词（引导词） 5. because和why也能引导表语从句。 2个句型。 A: The reason why … is that… B: It/this/ that is why (because) … ① The reason was that you don’t trust her. ② He was ill. That’s why he was sent to the hospital. ③ He was sent to the hospital. That’s because he was ill.
① My question is whether Linda is on diet. ② My question is whether Linda cried yesterday.
Exercises
• 医生真正怀疑的是我母亲是否能很快从重病中康复。
What the doctor really doubts is whether my mother will recover from the serious disease soon.
② The problem is that Alex doesn’t eat carrots. (Alex doesn’t eat carrots.)
引导词
一、连词（引导词） 在 表 “ 建 议 ， 劝 说 ， 命 令 ” 的 名 词 idea, suggestion, request,
proposal 等后面的表语从句中，谓语动词用“should + 动词原形”， should可省略。
• 现在的问题是这件事是否值得做。
The question is whether it is worth doing.
引导词
一、连词（引导词） 3. 当表语从句是特殊疑问句时，由连接代词或者连接副词引导。
因为连接代词 或连接副词在从句中担任一定的句子成分，具有一定的 意义， 也不能省略.
★连接副词 (when, where, how, why) whenever, however, 在从句中做状语.
（复合句）
在复合句中，用来充当表语的句子就叫表语从句
引导词
一、连词（引导词） 1. 当表语从句是 陈述句 时，连词由that引导，因为that在从句中 不作任何成分，也没有任何具体意思，但是却不可省略
① The fact is that Jack is clever. (Jack is clever.)
① My opinion is that it’s getting better and better. ② My suggestion is that we (should) start early tomorrow.
引导词
一、连词（引导词） 2.当表语从句是一般疑问句时，由连词whether引导，它们在从句中 不做任何成分，但因为whether翻译成：“是否”，具有一定的意义，也 不能省略。 注意： if 不引导表语从句
形容词充当表语
⑥ When I went to your house, you were out.
副词充当表语
⑦ No one was in the dorm, when she arrived.
介词短语充当表语
⑧ My job is to teach you English.
不定式充当表语
⑨ The reason why he came late was that his clock didn’t work.
Exercises
• 形势并不像外表所看到的那样。
The situation is not as it seems to be.
• 她看上去很担忧他父母的病情。
She looks as if she is worried about her father’s disease.
• 他好像疯了似的。
It was as though he were mad.
★连接代词 (what, who, whom, which, whose), whatever, whoever, whichever.
在从句中常做 主语.宾语.表语.定语
Exercises
• 我的问题是 这个女孩是谁.
My question is who the girl is.
• 麻烦的是 谁能替代他
The trouble is who can replace him.
• 那就是他所担心的。
That is what he is worried about .
• 我的建议是他应该减肥。
My advice/ suggestion is that he (should) lose weight.
引导词
③ The door remained closed. 动词过去分词充当表语
④ Mary’s daily job is cleaning the house. 动词- ing 形式充当表语
表语是用来说明主语的身份、性质、品wk.baidu.com、特征和状态的。
定义
⑤ The house is not only large but also beautiful.
语法飞跃 ——表 语 从 句
The Predicative Clause
定义
① The person stood in front of you just now is my headmaster. 名词充当表语
② I didn’t know that it was you at that time. 代词充当表语