.Useful structureThe Restrictive and Non-Restrictive Attributive Clause一、关系代词 : 1. who 指人 , 作主语或宾语 ( 作宾语可省略)The man who I talked with is our teacher.A person who steals things is called a thief.2. whom 指人 , 作宾语 ( 作宾语可省略 ,如介词提前则不能省 ) The man (whom/who) I nodded to is Mr. Li.The man to whom I nodded is Professor Li.applethe redthe greenthe smallthe bigThe apple which is red is mine.The apple which is green is yours.The apple which is red is smallThe apple which is green is big. Mrs. Clark is angry with the goat. The goat is eating her flowers.Mrs. Clark is angry with the goat which is eating her flowers. Can you lend me the book? You talked about it last night.Can you lend me the book (which) you talked about last night.Can you lend me the book about which you talked last night? Do you find the pen? I wrote with it just now.Do you find the pen with which I wrote just now?Do you find the pen (which) I wrote with just now? 3. which 指物,作主语或宾语 ( 作宾语可省略 , 如介词提前则不能省 ) These are the trees which were planted last year.This recorder ( which ) he is using ismade in Japan. Is this the library (which) you borrow books from?Is this the library from which you borrowbooks? that 指人 / 物,作主语或宾语 ( 作宾语可省略)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.He is the man (that) I told you about. 注意:介词提前时只能用 which 而不能用 that 。4. that 指人 / 物,作主语或宾语 ( 作宾语可省略)A plane is a machine that can fly.Is this the library from which you borrow books? from that that 和 which 在指物的情况下一般都可...