3)当先行词被形容词的最高级修饰时， . This is the best film that I have ever seen. 4)当先行词前有限定词noly , very,little,just等修饰时, . This is the very dictionary that I want to buy. . There is little time that we can use. 第1页/共7页 5)在there be句型中，只用that，不用which . There is a book on the desk that I am very interested in. 6)先行词既有人，又有物时 . They talked about persons and things that they remembered in the school. 7) 为了避免重复 . Who is the girl that broke the window ? 第2页/共7页 8) 先行词指物，在主句中作表语时 . Is this the book that you borrowed in the library? 9) 先行词是the way时 . That was the way that he did it. 第3页/共7页 关系代词 AS 引导定语从句 as 引导限制性定语从句时，常与 such，the same 连用，as 在句中不省略。 will give you such information as will help your work. . They stayed for the night in the same room as they had once rented. 第4页/共7页 只用which，不用that的情况 1) 引导非限制性定语从句时. 2)一个句子中若有两个定语从句，一个用that引导，另一个用which引导； . He bought a book that could give him much knowledge and which could help him to kill the time. 3)引导词前有介词时. 第5页/共7页 It was April 19th. In th
