1、定語從句中that與which的區(qū)別,定義：由關(guān)系代詞或關(guān)系副詞引導(dǎo)用來修飾主句中的某一個名詞或代詞并起定語作用的從句, 叫定語從句。定語從句所修飾的詞叫先行詞，從句跟在先行詞后面。定語從句的構(gòu)成方法是：關(guān)系代詞或副詞+陳述句語序。 關(guān)系代詞有: who, whom, whose, which, that, as等; 關(guān)系副詞有when, where, why等。,只用that，不用which的情況 a.當(dāng)先行詞有序數(shù)詞或形容詞最高級修飾時； This is the second computer that Tom has just bought. This is the best place

2、 that Ive ever visited. b.當(dāng)先行詞前有the only, the very, the last等詞修飾時； The only thing that they can do is to wait. c.當(dāng)先行詞為anything, nothing, something, everything, all, little, much等不定代詞修飾時； There is nothing that can stop him from doing it. Have you got anything that belongs tome?,e. 當(dāng)先行詞前有all, every, n

3、o, some, any, little, much, few等詞修飾時：eg: Ive read all the books thatyou lent me. Is this all thats left? f. 當(dāng)先行詞既有人，又有物時： eg:Sally is talking about the writer and his book that interests her. They talked about the teachers and the schools that they knew. g. 在以which，who開頭的句子中常用that。如： eg:Who is the b

4、oy that is playing computer games? Which is the car that killed the man? h.time是先行詞時，前面如有序數(shù)詞或last修飾時，定語從句只能用that引導(dǎo)或省略。例如： This is the last time(that)I shall give you a letter. The first time(that)I saw him was last year.,只用which，不用that的情況 a.在非限定性定語從句(即通常用逗號與主句隔開，如果去掉逗號，整個句子仍能表達完整的意義的定語從句)中。如： They are talking about the TV play, which they saw last night. 他們正在談?wù)撟蛲砜吹碾娨晞　?b.引導(dǎo)詞前有介詞時； This is the house in which Tom once lived. 這是湯姆曾經(jīng)住過的房子。 c.一個句子中若有兩個定語從句，一個用that引導(dǎo)，另一個用which引導(dǎo)； He bought a book that