定语从句
Preposition +which/+whom总结
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介词+关系代词
“介词+关系代词”引导定语从句时， 介词的宾语只能用which（指物）或 whom(指人)，whose既可指人也可 指物,即介词+which/whom/whose.
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介词+关系代词
1. 介词+关系代词与 when、where或why 转换
_w_h_e_n__=woen
which used foreign
oil are gone forever.
There was a time _w_h_e_n_ the
businessman lost heart.
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关系副词why
先行词是表示原因的名词，即reason，在定语从句中充 当原因状语，用why，这时一般可以用for ＋which来代 替:
(介词同先行词搭配)
(2) where指地点，在从句中作地点状语。 where=in/ at/ on/ ... which (介词同先行词搭配)
(3) why的先行词只有reason，why在从句中作原因状语。 why=for which
(4)先行词指物时，whose= the + n. of which 5
关系副词 where
This is the house in which / where he used to live.
This is the house (which/that ) he used to live in.
I know of a place in which / where we can swim.
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This is the river by_/_b_e_si_d_e_which there is a factory. on__w_h_i_c_h_ there is a boat.
o_v_er_/_a_cr_o_s_s_w_h_i_c_ha bridge was built. a_l_o_n_g__w_h_i_c_hwe often have a walk.
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Point 3 “介词+关系代词”定语从句四大考点 1、恰当的简单介词+关系代词
We managed to find a boat,_i_n_w_h_i_c_hwe could get to the island.
The lab,_in__w_h_i_c_h_the experiments used to be done,is being repaired.
Have you fຫໍສະໝຸດ und the book for which I paid $10?
Have you found the book on which I spent $10?
Have you found the book about which she often talks?
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Point 2: 介词的选用
The reason __w__h_ic_h_/_th_a_t_ was explained to the teacher is not true. （作主语）
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先行词是position, situation, point, case, condition 等时在定语从句中作状语用关系副词where连接.
studied hard. I never forget theddaayy on which I went
to college. I never forget theyyeeaarr in which I went
to college.
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Point 2: 介词的选用
2. 根据定语从句中谓语动词的搭配习惯确定
• They were at the point
where/at which they had to
decide what to de next.
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Point 2: 介词的选用
考虑三个因素: “一先,二动,三意义” 1. 根据定语从句中先行词的搭配习惯确定 I never forget the days during which I
I don’t know the reason why/ for which he did it.
The reason why/ for which he was fired was not c试le比ar较. ： The reason _(_w_h_ic_h_/__th_a_t_)_he explained to the teacher is not true. （作宾语）
I know of a place (which /that ) we can swim in.
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关系副词when
= on which
They’ll never forget July 1 _w_h_e_n_ Hong Kong returned to its motherland.
The
days
2. 介词的选用 3. “介词+关系代词”
型定语从句四大考点
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Point 1 介词+关系代词与when、 where或why转换
关系副词：在句中作状语 关系副词=介词+关系代词
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关系副词: when, where, why (1) when指时间，在从句中作时间状语。 when=during/ on/ in/ ... which
• They are in such a situation where everything is in disorder
• The police are looking into the case where two VIPs were killed.
• Can you make a sentence where this verb can be used?
3.根据定语从句所表达的意义来确定 Air, __w_i_th_o_u_t_ which man can’t
live, is really important. The film ___du_r_in_g__w_h_ic_h_ I fell
asleep was very boring.
The pen w__it_h__which he is writing now was bought yesterday.