_I_t_ is known to all that the earth is
round.
定语从句在句首时只能用as, as 具有正如之意，与之搭配的动 词一般是固定的
as 的使用
This is the same book as I lost. 这本书和我丢的那本一模一样。
This is the same book that I lost. 这本书就是我丢的那本。
2when, where, why 与that, which 的区分
１）I’ll never forget the day _w__h__e_n___ we
first met in the park.
２）I’ll never forget the time
_w__h_i_c_h_\_t_h_a__t____I spent with you. ３）I’ll never forget the time _w__h_i_c_h_\_t_h_a__t_
as 的使用
1. It is very useful to master a foreign language,W__h_i_c_h/has been said before. as
2 A__s_ everyone hoped, Mary haas引w导on定t语h从e f句ir可st放p在ri句ze首. ，句中，
countryside.
例1. Is this museum ___ you visited a few days age? A. where B. that C. on which D. the one 例2. Is this the museum ____ the exhibition was held. A. where B. that C. on which D. the one
This is the schoolw_h_e_r_eI studied English/I work. This is the school w__h_ic_h_/_th_a_tI like very much.
填入正确关系词: This is the mountain village _w_h_ic_h_/t_h_at_ I visited last
w—h—ic—h cover looks terrible. whose
3. This is the very pen that you gave i\t
to me before.
i\t
4. There is an old woman, t—h—at is holding
a stick.
who
判断关系代词与关系副词
关 系 代 词
Hale Waihona Puke 指时间 when 系指原因 why
副
词
Correct the mistakes
1.Under the big tree are 34 students,many
of —th—em— come from class two. whom 2. My mother has a good book,
例1变为陈述句： This museum is ___ you visited a few days ago. 例2变为陈述句： This is the museum ___ the exhibition was held.
注意：先行词在从句中做主、定、宾语时，选择关系代 词 (who, whom, that, which, whose)； 先行词在从句中 做状语时，应选择关系副词 ( where 地点状语，when 时 间状语，why 原因状语) 。
year. This is the mountain village w__he_r_e__ I spent my
winter holiday. I'll never forget
the
daysw_h_ic_h_/_th_atI
spent
in
the
countryside.
I will never forget the days _w_h_e_n_I stayed in the
was spent with you.
４）This is the museum ___w_h__i_c_h_\_t_h_a_t__I
visited last year .
6 as 的使用
The earth is round,_a_s_ we all know. _A_s_ is known to all, the earth is round
句末，而which 引导定语从句不能 放在句首.as译为正如，好像。， which 则没有此义。
Correct the sentences:
1. I’m using the pen which he
bought it yesterday. to
2. The man whom I spoke is
• 你要的那本书. the book that you want
• 我出生的城镇. the town where I was born
• 我看过的电影
the film which I have seen
引导定语从句的关系词
指代人 who，whom，that 指代事物 which，that 所属关系 whose，of which 指地点 where 关
from Canada.
∧
3. July 1,1999 is the daytwhhaetn
we’ll never forget.
as 的使用
This is such an interesting book _a_s__ we all like.
This is so interesting a book _a_s___
we all like.
定语从句
这是大家都喜欢的如此有趣的一 本书。
as 的使用
This is such an interesting book t_h_a__twe all like it. This is so interesting a book t_h_a__twe all like it. 结果状语从句 这本书如此有趣，大家都喜欢。