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in a big house,in front of which stood a big tall tree.他住在一幢大房子里,房前有一棵大樹。I collected some books,the covers of which(=whose covers/of which the covers)are yellow with years.我收藏了一些書,它們的封面因年代久遠(yuǎn)都變黃了。3.介詞前有時加名詞、數(shù)詞、不定代詞,構(gòu)成“名詞/數(shù)詞/不定代詞+of which/whom”結(jié)構(gòu),在定語從句中作主語。)“三意義”,即根據(jù)定語從句的意義來確定介詞。t a single person to whom she could turn for help.在漆黑的街道上她沒有一個人可以求助。)“二動”,即根據(jù)定語從句中的謂語動詞來確定介詞。m working mainly produces puters.我工作所在的工廠主要生產(chǎn)電腦?!耙幌取?,即根據(jù)先行詞來確定介詞。I took a photo of the students,among whom was seated a teacher.我給這些學(xué)生拍了一張照片,他們中間坐著一位老師。(關(guān)系代詞在從句中作主語)[即學(xué)即練1]用適當(dāng)?shù)年P(guān)系副詞填空①He arrived in Beijing on the day when I left.②The factory where his father works is in the east of the city.③Could you tell me the reason why she refused to go abroad?二、“介詞+which/whom”引導(dǎo)的定語從句1.“介詞+關(guān)系代詞”結(jié)構(gòu)引導(dǎo)定語從句時,關(guān)系代詞只能用which(指物)或whom(指人),即介詞+which/whom,且不能省略。This is the reason(which/that)our teacher gave us for doing it.這就是我們老師給我們的做此事的理由。The reason why he succeeded in the exam is that he studied very hard.他考試成功的原因是他學(xué)習(xí)很認(rèn)真。The school(which/that)we visited yesterday is newly