三.连接词,连接代词,连接副词
1. 连接词：that, whether, if （引导从句，不作成分；that无义， whether/if “是否”）
2. 连接代词：who(whom), what, which, whose whoever(whomever), whatever,whichever (作主语/宾语/表语/定语)
5. _W__h_a_t__we need is more time. 6. __W__h_o__made the long distance call to him is not
2.Mrs Black won’t believe that her son has become a thief. 宾语从句
3. My idea is that we should do it now. 表语从句
4.I had no idea that you were her friend. 同位语从句
6.W__h_e_th__er_ they can do it matters little to us.
7.They have discussed for hours w__h_e_th_e_r_they will hold the meeting.
8. It has not been decided _w__h_e_th_e_r_ to go.
4. Where he lived is unknown to us. （where引导主从，作live的状语）
考点1. that与what
What we can’t get seems better than what we have . That a new teacher will come to our school is true .
☆A.What
B. That
C. The fact D. The matter
考点2.用if/whether填空
1. I don’t know _w_h_e_t_h_e_r / if I’ll be free
tomorrow. 2. I don’t know w__h_e_th__er_ or not I’ll be
2. What he said at the meeting surprised everybody present. (what引导主从，并在从句作said的宾语)
3. The problem is whether we finish the task on time. （whether引导表从，不作成分，表示“是否”）
free tomorrow. 3. The question is _w_h__et_h_e_r_ this book is
worth writing. 4.I have no idea whethe_r_he will come
or not.
5. It depends on __w_h_e_t_h_e_r_ we will have enough money.
小结：
that 只引导从句，无实义，不充当成分 what既引导从句， 又要在从句中充当成分（
主语 / 宾语 / 表语）
1.__T_h_a_t__ China has a large population is known to us all. 2._W__h__a_t_is known to us all is _t_h_a_t_ China has a large population. 3. ___It___is known to us all that China has a large population. 4. __A_s___is known to us all, China has a large population.
小结：只用whether引导从句的 情况
①主从位句首； ②表语从句； ③同位语从句； ④介词后面的宾从； ⑤后面紧跟 or not； ⑥作discuss的宾语从句； ⑦后面有to do不定式
考点3. whoever/whatever/whichever/what/who引导 名词性从句
1._W__h_a_t_e_v_e_r_ was said here must be kept secret.
3. 连接副词：when, where, why, how（作状语）
1. That he said nothing surprised everybody present.
（that 引导主语从句，不作成分，常用it作形式主语）
It suprised everybody present that he said nothing.
2.She would like to make friends
with_w__h_o_e_v_e_r__shares her interest. 3. You may choose__w_h_o_e_v__e_r_/w__h_o_m__e_v_e_r_you’d
like to go with.
4.Take _eclassroom.
比较句2，句3和句4
高考题选萃
1）____ you don’t like him is none of my business.
A. What
☆C. That
B. Who D. Whether
2)____ he said at the meeting astonished everybody
present.
英语三大从句常考点
名词性从句
一.相关概念
1.名词：表示人或事物的名称的词 2.名词的句法作用：名词在句中主要作 主语,宾语,表语和同位语。 3.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。
二.名词性从句的种类
1.When we will start is not clear. 主语从句