名词性从句课件PPT课件

名词在句中主要作主语、宾语、表语和 同位语。
什么是名词性从句?
在英语的句子结构中，本来该由名词充当的主语、宾 语、表语和同位语，由一个句子来充当,这个句子就叫 名词性从句。
主语从句 ( The Subject Clause)
名
词 宾语从句 ( The Object Clause)
性
从
表语从句 ( The Predicative Clause)
That he will come and help us is certain. Whether we will succeed is still a question.
注意: 已确定的事由that引导;
没决定的事由whether引导.
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他星期三来这里是肯定的。
That he will come here on Wednesday is certain. 注意：从句作主语时，就算是句子意思完整，都要加 上从属连词that 他星期三是否来这里还不肯定的。
1. That he knows Japanese is known to all.
他懂英语,这一点大家都知道
That无词义,不可省略
2. What surprised me was to see him here .
Details
令我惊讶的是在这儿见到他.
What “什么”, “所….
3. When he will come is unknown 的. ”
我知道他在房间里写作文. 从句的特征:
是一个句子,有一个引导词,引导词做从句的一个成分 (that 除外)
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请判断出ຫໍສະໝຸດ Baidu列的句子属于哪种从句
What I want to do is taking a bath. (主从)
The news that they won the game spread the
2. Why he failed the exam wasn’t clear.
3. Whether he has failed the exam wasn’t clear.
4. It is a pity that she. cannot come.
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2） 主语从句的连接词
1. 连词that (无词义, 不作成分, 不能省略, 只起连 接作用); whether(是否), 不作成分, 不用if.
whole school. (同位语从句) I don’t think he is an honest boy. (宾从)
The fact is that he stole the car. (表从) Do you know the fact that he stole the car?
(同位语从句)
That the boy failed again in the exam disappointed his mother.
那孩子考试又不及格令他母亲很失望. (从句作主语)
同样作主语，从句可以表示较复杂的含义,一般是个动作或性质
I know him. I know that he is writing his composition in his room
句
同位语从句 ( The Appositive
Clause)
名词性从句
主语从句
宾语从句
表语从句 同位语从句
主语从句在句中做------ 主语 表语从句在句中做------ 表语
宾语从句在句中做------ 宾语 同位语从句在句中----- 同位语
1. That he will come is certain.
他什么时候来不清楚.
When “什么时候”
4. Whether he is coming doesn’t matter much.
Details Details
他来不来没什么要紧的
主语从句不用 if Details
5. It remains a secret how they climbed up the mountain.
主语从句
2. I know that he will come.
宾语从句
3. The truth is that I have been there.
表语从句
4. The fact that she was late surpr. ised us.
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同位语从句
1. 为什么叫名词性从句？ 名词能做的成分,从句都能 2.整个__从__句__相__当_于__一__个__名__词______ 做 2. 为什么要有名词性从句？ 从句表达的意思比名词复杂得多 比较: The man looked around. 那人看了看四周. (名词作主语)
Related Conception (相关概念)
1.名词: 表示人或事物的名称的词叫名词。 2.名词在句子当中一般可以作什么成分? The boy is li Ming. 主语 表语
Mr. Liang , a 24-year-old boy, teaches us English .
主语
同位语
宾语
他们是怎么登上山顶的仍是个秘密.
主语太长了!放到句尾
主语从句的位置 1.在句首 2.主语较长时通常放在后面,
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句首主语用 It
主语从句
❖ 主语从句在复合句中做句子的主语。
1. That most of these are now threatened and may disappear is a serious matter to the people in Britain.
Whether he will come here on Wednesday is not certain.
注意：that 引导的主语从句放在句首很少，只是为了强 调或谓语较长时才这样
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2. 连接代词what, whatever, who, whoever, which, whichever, whose等.
Do you know the man who is standing over
there?
(定从)
It is said that they won the game. (主从)
主语从句 位于句首
从 句 that whether who whom whose 引导词: what which when where why how