高二英语名词性从句讲解

(同位语)
1、主语从句 ( subject clause )
名词性 从句分 类
2、表语从句 ( predicative clause ) 3、宾语从句 ( object clause ) 4、同位语从句 ( appositive clause )
辨别不同的从句
My dream is that I can enter a key university. 表语从句
英语名词性从句
Noun Clause
请思考 定语从句的定义：
起定语作用，用来修饰名词或代词的从句。
名词性从句定义
起名词性作用的从句，叫名词性从句。 换言之，在英语的句子结构中，本来该由名词充当的 主语、宾语、表语和同位语部分，换由一个句子来充 当，这样的句子就是名词性从句。
请思考： (主语) (宾语) (表语)
用that / what填空：
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_twe won the game. 4.This is ___w_h_awt e want to know. 5. I have no doubt ___t_h_aht e will come. 6. I have no idea ___w__hahte did that afternoon.
Conclusion:
“who”---“谁”、作主 宾 表语、起连接作用
连接代词
“what”---“事情”、作 主 表宾、起连接作用 “which”---“哪----”、作定语、起连接作用
“whose”---“谁的”、作定语、起连接作用
名词性从句引导词的用法（3）：
“when”
连接副词
“where” “why”
从属连词
“if / whether”--- “是否”、不作成份、起连接 作用
名词性从句引导词的用法（2）：
“who”
连接代词
“what” “which”
“whose”
1、Who will go to the college is still uncertain .
（主语从句）
2、The trouble is who could lend me some money .
A. If B. Whether C .That D. Where
3.___ is known to us all is that America is a
developed country belonging to the First
（表语从句）
3、He want to know who she is / who she has seen .
（宾语从句）
“who”----“ __谁__”作、主__表__宾_成语份、起__连__接__作用
“who”---“谁”、作主 宾 表语、起连接作用
1、Who will go to the college is still uncertain .
2、I
just
want
to
ask
you
why
I
（主语从句） was fired .
（宾语从句）
3、How the thief stole the bike is still a mystery .
（主语从句） 4、What the professor asked us was how we could
表语从句
1、Whether she will come back on time depends on
weather . （主语从句）
2、The problem is whether you could give us some
valuable advice . （表语从句） （宾语从句）
3、I asked him if / whether he could do me a favor . 4、Could you tell me the question whether English is
important .
（主语从句）
2、What he wants to ask you now is which team
won the game .
（表语从句）
3、Could you tell me which one is right .
（宾语从句）
“ which ”----“ _哪__-_--”、作_定__语__成份、起__连__接__作用
（主语从句）
2、The trouble is who could lend me some money .
（表语从句）
3、He want to know who she is / who she has seen ..
（宾语从句）
1、Which class is suitable for us isn’t m来自百度文库st
一、名词性从句练习：
1. ___ he made an important speech at the meeting was true.
A. That B. Why C. What D. How 2. ___we’ll go camping tomorrow depends on the weather .
1、Whose bag was the most beautiful is still
unknown now .
（主语从句）
2、The question is whose friends could lend me a
hand .
（表语从句）
3、I want to know whose suggestion is more
“how”
“when”-- “什么时候”、作时间状语、起连接作用
1、When the meeting will begin isn’t decided now .
（主语从句）
2、The trouble is when he could recover from the
disease .
（表语从句）
宾语从句
3、That he is a famous singer is known to us.
主语从句
4、I knew the news that our team won the match.
同位语从句
5、His suggestion is that we should finish the
work at once.
1、That we will realize our dreams in the future is
certain （. 主语从句）
2、The fact is that Beijing will hold 29th Olympic
Games this year.（表语从句） 3、I know that well begun is half done（. 宾语从句）
useful for us now. （同位语从句）
W“ hether /”-i-f--“是__否__”不、充__当___成份、起_连__接___作用
if 和whether 的选用
不能使用if 的情况：
a. 主语从句 b. 表语从句 c. 同位语从句 e. 介词后的宾语从句 f. whether to do 做动词宾语不能用if to do. g whether or not 连在一起引导宾语从句时 不用if.
引导词
从属连词：
that 、if、 whether
连接代词 ： who、 whom 、 what、 which、 whose、 whoever whomever、 whatever、 whichever、
连接副词： when、 why、where、 how
“that”---无词义、不作成份、起连接作用
practical .
（宾语从句）
“ whose ”----“谁_的___”作、定__语___成份、起连__接____作用
that 和what 的选用
that 和 what 都可引导所有的名词从句。 但是，what除起连接作用外，还在名 词性从句中充当成分，可做从句的主 语、宾语、或表语。而that在名词性从 句中不充当任何成分，只起连接作用。
7.The doctor can hardly answer the question w_h_e_t_h_e_rthe old man will recover soon.
8. I don’t know w__h_e_th_e_r_ to go.
Conclusion:
“that”---无词义、不作成份、起连接作用
“how”----- “如何”、作状语、起连接作用
总结：引导名词性从句的三类关联词
1. that , whether/ if (在从句中不做成分，只 起 连接作用)
2. what who which whose (在从句中做主、表、 宾、定成分)
3. when why where how(在从句中做状语)
1. I asked her _if_/_w__h_e_th__e_r she had a bike. 2.W__h_e_t_h_erwe will hold a party in the open air
tomorrow depends on the weather. 3. We’re worried about _w__h_e_t_h_e_r he is safe. 4. I don’t know __w_h_e_t_h_e_r_/i_f_ he is well or not. 5. I don’t know __w_h_e_t_h_e_r or not he is well. 6. The question is __w_h_e_t_h_e_r_ he should do it.
That I can enter a key university is my dream. 主语从句
I always dream that I can enter a key university. 宾语从句
I have a dream that I can enter a key university. 同谓语从句
3、He asked us when we would graduate from the
school .
（宾语从句）
1、Where I could buy the book is uncertain now .
（主语从句）
2、His question was where we would hold the
1、English is very useful for us . 2、The subject I am interested in is English. 3、We need to master English well. 4、He want to learn the language , English .
4、He heard the news that Liu xiang set a new
world recor（d .同位语从句）
说出从句部分及类别并翻译：
1、My idea is that we should do it right now.
表语从句
2、She won’t believe that he has become a thief.
opening ceremony .
（表语从句）
3、I couldn’t tell you where they have been living .
（宾语从句）
“ where ”---什-“么_地__方_”、地点__状__语_ 、起连接作用
1、Why he killed himself is still a secret now .
make our parents happy .
（表语从句）
“ why ”----“为什__么__”、 原__因__状_ 语、起连接作用 “ How”----“ 如__何__”、方_式__状__语 、起连接作用
Conclusion:
“when”-- “什么时候”、作状语、起连接作用
连接副词
“where”-- “什么地方”、作状语、起连接作用 “why”---- “为什么”、作状语、起连接作用