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e airport. It runs every half hour. The bus which/that goes to the airport runs every half hour. when在定語從句中作時間狀語,相當于 “ 介詞 + 關系代詞( which) ”。 5 在非限制性定語從句中,指人時,只用 who, 指物時,只用 which。 This is the best film that I have ever seen. 216。 The baby is Jack. The baby is Jack. whose trousers are red who is wearing red trousers Jack Which house is mine 房頂是棕色的 房子是我的。 關系代詞 : 1. who指人 ,作主語或賓語 (作賓語可省略) The man who I talked with is our teacher. A person who steals things is called a thief. 2. whom指人 ,作賓語 (作賓語可省略 , 如介詞提前則不能省 ) The man (whom/who) I nodded to is Mr. Li. The man to whom I nodded is Professor Li. 3. which 指物,作主語或賓語 (作賓語可省 略 , 如介詞提前則不能省 ) These are the trees which were planted last year. This recorder ( which) he is using is made in Japan. Is this the library (which) you borrow books from? Is this the library from which you borrow books? 4. that 指人 /物,作主語或賓語 (作賓語可省略) A plane is a machine. It can fly. A plane is a machine that can fly. He is the man. I told you about him. He is the man (that) I told you about. (1) The scientist is very famous in the world. We met her yesterday. The scientist 216。 Unit4 Grammar (定語從句 ) ? 在選擇引導定語從句的關系代詞時,有如下要點: 1 由于關系代詞在主句與從句間既起到聯系作用,有在從句中充當一個成分,因此, 要正確判斷關系代詞在從句中的功能,如作主語還是賓語等。在非限制性定語從句中,指人時,只用 who,指物時,只用 which。 for which = 。非限制性定語從句 和主句關系不很密切,只是對先行詞作些附加說明, 如果去掉,主句的意思仍然清楚。指人時,介詞后只用 who