名词性从句
学习目标：
学习重点：
1.能快速判断出一个句子属于什么类型的从句。
2. 注意宾语从句的时态呼应。
学习难点：
1. that什么情况下可以省略，什么情况下不可以省略。
2. whether 和if 什么时候可以互换，什么时候不可以互换。
3. 如何区分同位语从句与定语从句。
◆ 学前尝试：
1.______ the baby could speak made his parents very happy.
A. That B. What C. Why D. If
2. I wonder ______ you will go shopping or stay at home.
A. that B. if C. whether D. what
3. This is ______ he was often late for school.
A. what B. that C. why D. whether
4. We all know the truth ______ the earth ______ around the sun.
A. if; moved B. that; moves C. why; move D. whether; move
◆ 探究学习：
一．名词性从句的含义
尝试：判断划线部分的句子在主句中充当的成分。
1. What he does is important. ( )
2. This is what he does every day. ( )
3. I don’t like what he does every day. ( )
4. I don’t know about the fact that he is a teacher. ( )
思考：
1. 一个句子在连接词的引导下，在句子中起________作用的句子叫名词性从句。
2．名词性从句相当于名词词组, 它在复合句中能担任哪些句子成分？
_______________________________________________________________________
3. 根据从句在句中不同的语法功能，名词性从句可分为哪四类呢？
_______________________________________________________________________
二．引导名词性从句的连接词：
尝试：判断下面名词性从句的连接词，并判断连接词在从句中充当的成分。
1. I want to know whether/if she still lives here. （ ）（ ）
2. What she said is not true. （ ）（ ）
3. Who broke the window has not been found out. （ ）（ ）
4. He asked whose handwriting is the best in our class. （ ）（ ）
5. That is why she left home yesterday. （ ）（ ）
6. Have you heard the news that Mary will be back soon? （ ）（ ）
7. I really feel that he needs more experience. （ ）（ ）
8. It is unwise to give your child whatever he wants. （ ）（ ）
思考：
1、连接代词：who, whoever, whose, whom, whomever, what, which________词义，在从句中_____担任成分，担任哪些成分？________________________________________
●I don’t believe __________ he has achieved so far.
●__________ breaks the law should be punished.
2、连接副词：when, where, why, how________词义，在从句中_____担任成分，担任哪些成分？________________________________________
●__________ we will hand in the project will be discussed later.
●Parents are thought to understand __________ important education is to their children’s future.
3、从属连词：that, whether, if, as if, as though。that ____词义，在从句中____担任成
分，有时可省略；if (whether), as if_______词义，但在从句中_______担任成分。
●I don’t care about __________ you have money or not.
●The problem is __________ Tom is able to arrive on time.
●__________ the meeting will be held here is not decided yet.
●It looks __________ it is going to rain.
●The truth is __________he didn’t come for the concert.
●__________ the earth is round is true.
总结：
连接词 | 词义 | 担任成分 | |
关系代词 | |||
关系副词 | |||
从属连词 | |||
三．名词性从句的类型：
whether是什么意思1. 主语从句：在复合句中作主句的_______。连接词有that, whether; who, what ,which; when ,where, how, why 等。 如:
●__________ he is a famous singer is known to us.
●__________ he will go to America is not yet fixed.
●__________ she’s coming or not doesn’t matter too much.
●__________ broke the glass yesterday is not clear.
尝试：
●It worried her a bit ______ her hair was turning grey.
A. while B. that C. if D. for
●It remains a question ______ we can get so much money in such a short time.
A. how B. that C. when D. what
●It is known to us ______ where there is pollution, there is harm.
A. which B. where C. what D. that
思考：
1. 为避免主语冗长,句子头重脚轻, 经常用it作__________, 主语从句放在后面作真正的__________。
常见的相关句型主要有it作形式主语的句型：
It’s likely / possible / that…____________________
It’s clear that…__________________
It’s said / reported that…____________________
It’s been announced / declared that…____________________
It’s no wonder that…____________________
It’s a common knowledge that…__________
2. 表语从句：在复合句中作主句的_______。引导词有连词that , whether, as if, as though; who, what, which, whose; when, where, how, why, because 等。如:
●The problem is _________ we didn’t get in touch with him.
●This is _________ Henry solved the problem.
●His suggestion is _________ we (should) finish the work at once.
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