名词性从句PPT-英语 精华版

限制性定语从句 非限制性定语从句
定语从句是形容词 性修饰性从句
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名词性从句的概念
名词在句子中一般可以充当 主语、表语、宾语、同位语。从 句在语法功能上相当于名词，也 可分别作主句的主语、表语、宾 语、同位语。因此，主语从句、 宾语从句、表语从句、同位语从
句统称为名词性从句。
名词性从句的引导词
从句担任哪个句子成分，这个从句就 叫该成分的的从句。
英语中的从句有：
状语从句 GO
定语从句 GO
主语从句 宾语从句
表语从句 GO
同位语从句
状件状语从句 原因状语从句 结果状语从句 方式状语从句 让步状语从句 比较状语从句
状语从句是副词 性修饰性从句
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定语从句：
注意：
单个宾语从句中的that可以省略； 但用it作形式宾语的宾语从句、并列 宾语从句中第二个及以后宾语从句 中的that不可以省略。 主语从句、表语从句、同位语从句 中的that一般不可以省略。
if和whether的运用（1）
Whether we will go to town tomorrow depends on the weather.
引导名词性从句的连接词可分为三类：
1．连接词
GO
2．连接代词
GO
3．连接副词
GO
连接词：
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that whether if (一般仅用于宾语从句) as if (用于表语从句)
★ 它们不充当从句的任何成分
连接代词：
what whatever who whoever whom whose which
I don’t know the fact where he was born.

考点一 连接词 that / what 的选用
总结归纳：
that 和 what 都可引导所有的 名词性从句。但是，_w_h_a_t__除起连 接作用外，还在名词性从句中充当 成分，可作从句的_主_语__、_宾_语__、 _表___语___、或_定__语_。而_th_a_t__在名词性从 句中不充当任何成分，只起 __连__接___作用。
• 步骤二：如果从句中既不缺少主语，宾语， 表语，定语，但是缺少一定意义的状语， 则考虑用连接副词；
• 步骤三：如果既不缺少主语，宾语，表语， 定语，也不缺少状语，则考虑用从属连词。
基础回顾２
Conjunctions of Noun Clauses
从属连词
有词义， 但不做成分
that（无词义）, whether, if as if/as though
考点一 连接词 that / what
Fans believe _t_h_a_t_ Jinyong's death is definitely a huge loss to the wuxia world. However, there is a saying _th__a_t _ where there are Chinese people, there are kungfu legends. _W__h_a_t we can do is to may he rest in peace and remember him forever.
宾语从句 表语从句
同位语从句
·
主语从句
• That anti-China separatists try to destroy the city is the biggest threat for HongKong.

4. 据说他已告诉了她一切.
It is said that he told her everything.
It is said只有 it 句型
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注意: It looked that he was right. ( × ) 可以说: It looks as if….
用形式主语 it 的主语从句常见结构
stay.
b.介词后面的宾语从句不能用if. eg: I worry about whether I hurt
her feeling.
Practice time
if / whether
1. I asked her __if__/_w_h_e_t_he_rshe had a bike. 3. We’re worried about ________ he is safe. 4. I don’t know _________w__hehtheeirs well or not. 5. I don’t know ___w_h_e_th_e_ro/rifnot he is well. 8. I don’t know _______ to go.
4. This school is no longer what it was before. 这所学校已不再是从前的那个样子了. what =the thing that
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注意下列表语从句中where, how, why 的译法
1. This is where Lu Xun once lived. 这就是鲁迅曾经住过的地方.
Note: It is important/necessary/natural/our duty/essential/strange
that sb (should) do sth. 固定句型, should可以省略

巩固提升一下吧
3. He didn’t make ______ clear when and where the meeting would be held. (2007天津)
A. this
B. that
C. it
D. these
4. I’d appreciate ______ if you would like to teach me how to use the computer. A. that B. it C. this D. you
to do
f. whether 后紧跟or not 引 导宾语从句时不用if.
三.it在名词性从句中作形式主语或形式宾语的用法
1.___ is a fact that English is being accepted as
an international language.
A. There B. This C. That D. It
基础回顾１
主语从句 作主语
名 （Subject Clause）
词 宾语从句 作宾语
性 （Object Clausive Clause）
同位语从句 作同位语
（Appositive Clause）
基础回顾２
名词性从句的连接词： 1) 连词：that, whether, if 2) 连接代词：what, who, which,
• You have to believe in yourself. That's the secret of success. 人必须相信自己，这是成功的秘诀。
•
二、名词性从句连接词的选用
1.that 和what 的选用
1._W_h_a_t_ he wants is a book. 2._T_h_a_t_ he wants to go there is obvious. 3.The result is __th_a_t__ we won the game. 4.This is _w_h_a_t_ we want to know. 5.Is _w_h_a_t_ he told us true ? 6.We should pay attention to _w__h_a_t _ the