【金版学案】2014-2015学年高中英语（人教版，必修1）课件Unit4Earthquakes第四学时　Grammar.ppt

Unit 3　Travel journal　　　　　　　　　　 　　　　　 第四学时　Grammar;定语从句(1);一、定语从句;二、that，which，who，whose, 引导定语从句;which;whose;三、关系代词的选用;This is the only, thing that, we can do. Its the best, film that ,has been made on the subject. (3)先行词是两个或两个以上分别表示人和物的并列名词或词组时。 We talked about the things and persons that, we saw and met during the trip. (4)先行词是主句的表语时。 Tom is no longer the boy that, he used to be.;(5)主句以there be开头时。 There is, not much that, we can help. (6)主句是以who，which开头的疑问句时。 Who ,is the man that, told you the news? Who, is the man that, you spoke to? Which ,is the cap that, you have decided to buy?;2．指物时必须用which而不用that的情况： (1)在从句中作介词宾语而介词又前置时。 The floor is dirty but I havent got a brush with which, I can sweep it. (2)引导非限制性定语从句时。 Football，which ,is a very interesting game，is played all over the world.;3．指人时必须用who而不用that的情况： 先行词是one，ones，those，anyone，he时。 Those who, want to go for a walk please follow me. He who, lives a more active life gets more time. 4．在从句中作宾语时只能用whom而不用who的情况： 在从句中作介词宾语而介词又前置时。 I like the villagers with whom, I worked in those years.;5．whose 表示所有关系，常用of which/whom短语代替： whose＝the＋名词＋of＋which/whom I want a room whose ,window faces south. ＝I want a room the window of which ,faces south.;?典例剖析;【例】　The journey around the world took the old sailor nine months，________ the sailing time was 226 days. A．of which　　　　　　 B．during which C．from which D．for which;第一步，我们可以比较容易地找到定语从句所修饰的主句，即空格前面那个句子；第二步，找出主句中的被定语从句限定的先行词，是“The journey”还是“nine months”，同学们比较难把握这一点；第三步，从空白处后面的定语从句着手分析句子结构，可以清楚地知道从句中“the sailing time”是“the nine months”中的一段时间，;即在9个月中，航行时间为226天，可以把定语从句还原为“the sailing time of (the) nine months was 226 days”，可见先???词为“nine months”，把它替换为关系代词which，可得到答案of which，选A。