英语表语从句讲解
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2. That mountain is no longer what it used to be .
3. What he told you was what had been discussed at the meeting.
need of money at that time . 3.He looked as if he was going to cry . 4.That’s why I was late .
引导词的用法（一）
that在表语从句中 既不充当成分 , 又 没有意义 。
The fact is that he hasn’t yet recover from illness.
总结：当从句原来是陈述句时，变 成名词性从句用that引导。
3.Does your sister get up early? Do you know?
→Do you know if/ whether your sister gets up early?
4.Do animals have the same senses as humans? I often wonder. →
/ wherever / whenever
引导词
• ຫໍສະໝຸດ Baidu型转换
• 1.They are good doctors. He told us. →He told us that they were good doctors.
• 2. He hadn’t said anything at the meeting. The fact surprised us.→ The fact that he hadn’t said anything at the meeting surprised us.
主语从句 subject clause
宾语从句 object clause
表语从句 predicative clause
同位语从句 appositive clause
His story is interesting. What he said is interesting. I heard his story. I heard what he said. I listen to his story. I listen to what he said. This is his story. This is what he said. The idea of going there is good. The idea that we should go there is good.
2. The question is whether it is worth doing.
引导词的用法（三）
what 在表语从句中充当_主__语_、__宾__语_或__表_语__ 表示_什_么__，__什_么__样_子__，__或_所__…_的__（__人_或__事_）__.
1. The question is what caused the accident.
什么叫名词性从句？
• 在句子中起名词作用的句子叫名词从句 (Noun Clauses）
• 名词从句的功能相当于名词词组, 它在 复合句中能担任主语、宾语、表语、同 位语等
• 因此根据它在句中不同的语法功能，名 词从句又可分别称为主语从句、宾语从 句、表语从句和同位语从句
名词性从句 noun clause
I often wonder if/ whether animals have the same senses as humans.
总结：当从句原来是一般疑问句时，变成 名词性从句用if或whether引导。
5.When did he buy this new bike? Could you
tell me? → Could you tell me when he bought this new bike? 6.My question is this: where will the
Predicative Clauses 表语从句
表语从句的定义：表语从句在复合句中 作主句的表语。表语从句和主语指 同一内容，它对主语进行解释、说 明，使主语的内容具体化。
结构是“主语+系动词+表语从句”。 可以接表语从句的系动词有
be, look, remain, seem等。
连接词：that / whether /as if /as
though 连接代词：who / whom / whose /
which / what 连接副词：when / where / why /
how / because
1.The question is whether we can rely on him. 2.That’s because we were in
lecture be given? → My question is where the lecture will be given.
总结：当从句原来是特殊疑问句时， 变成名词性从句还用原来的特殊疑 问词来引导。
总结：名词性从句必须用陈述句语序。 所有名词性从句要有且仅有一个引导 词，除宾语从句的that外其他均不能 省略。其结构为引导词+陈述语序
名词性从句中的连接词
连词: that / whether / as if (though); 连接代词: what / who/ which / whose / whatever / whoever / whomever
/ whichever， 连接副词: where / when / why / how
The reason why he has to go is that his mother is ill in bed.
引导词的用法（二）
• whether在表语从句中表“是否”,但不 充当句子的成分。if 不能引导表语从 句.如:
1.What the doctor really doubts is whether my mother will recover from the serious disease soon.
3. What he told you was what had been discussed at the meeting.
need of money at that time . 3.He looked as if he was going to cry . 4.That’s why I was late .
引导词的用法（一）
that在表语从句中 既不充当成分 , 又 没有意义 。
The fact is that he hasn’t yet recover from illness.
总结：当从句原来是陈述句时，变 成名词性从句用that引导。
3.Does your sister get up early? Do you know?
→Do you know if/ whether your sister gets up early?
4.Do animals have the same senses as humans? I often wonder. →
/ wherever / whenever
引导词
• ຫໍສະໝຸດ Baidu型转换
• 1.They are good doctors. He told us. →He told us that they were good doctors.
• 2. He hadn’t said anything at the meeting. The fact surprised us.→ The fact that he hadn’t said anything at the meeting surprised us.
主语从句 subject clause
宾语从句 object clause
表语从句 predicative clause
同位语从句 appositive clause
His story is interesting. What he said is interesting. I heard his story. I heard what he said. I listen to his story. I listen to what he said. This is his story. This is what he said. The idea of going there is good. The idea that we should go there is good.
2. The question is whether it is worth doing.
引导词的用法（三）
what 在表语从句中充当_主__语_、__宾__语_或__表_语__ 表示_什_么__，__什_么__样_子__，__或_所__…_的__（__人_或__事_）__.
1. The question is what caused the accident.
什么叫名词性从句？
• 在句子中起名词作用的句子叫名词从句 (Noun Clauses）
• 名词从句的功能相当于名词词组, 它在 复合句中能担任主语、宾语、表语、同 位语等
• 因此根据它在句中不同的语法功能，名 词从句又可分别称为主语从句、宾语从 句、表语从句和同位语从句
名词性从句 noun clause
I often wonder if/ whether animals have the same senses as humans.
总结：当从句原来是一般疑问句时，变成 名词性从句用if或whether引导。
5.When did he buy this new bike? Could you
tell me? → Could you tell me when he bought this new bike? 6.My question is this: where will the
Predicative Clauses 表语从句
表语从句的定义：表语从句在复合句中 作主句的表语。表语从句和主语指 同一内容，它对主语进行解释、说 明，使主语的内容具体化。
结构是“主语+系动词+表语从句”。 可以接表语从句的系动词有
be, look, remain, seem等。
连接词：that / whether /as if /as
though 连接代词：who / whom / whose /
which / what 连接副词：when / where / why /
how / because
1.The question is whether we can rely on him. 2.That’s because we were in
lecture be given? → My question is where the lecture will be given.
总结：当从句原来是特殊疑问句时， 变成名词性从句还用原来的特殊疑 问词来引导。
总结：名词性从句必须用陈述句语序。 所有名词性从句要有且仅有一个引导 词，除宾语从句的that外其他均不能 省略。其结构为引导词+陈述语序
名词性从句中的连接词
连词: that / whether / as if (though); 连接代词: what / who/ which / whose / whatever / whoever / whomever
/ whichever， 连接副词: where / when / why / how
The reason why he has to go is that his mother is ill in bed.
引导词的用法（二）
• whether在表语从句中表“是否”,但不 充当句子的成分。if 不能引导表语从 句.如:
1.What the doctor really doubts is whether my mother will recover from the serious disease soon.