1、B7 Unit 2 Understanding each otherGrammar and usageRelative clauses -1I.学习目标By the end of this class, students will be able to:1. identify and categorize relative clauses;2. summarize the grammatical rules of relative clauses;3. use relative clauses appropriately in controlled context;4. apply relat
2、ive clauses to give examples of taboos.II. 导读导学Lead students to summarize the grammatical rules of relative clauses based on the text, and use the rules to identify and categorize relative clauses.关系词指代充当成分关系代词that人或物主、宾、表which物主、宾who人主、宾whom人宾whose人或物定语关系副词where地点状语when时间why原因在复合句中，如作定语的是一个从句，该从句被称
3、为定语从句。定语从句分为两种：限制性定语从句和非限制性定语从句。 一、限制性定语从句限制性定语从句对先行项（先行词）进行限定或修饰，由关系代词或关系副词引导。主句和从句不用逗号隔开。（一）用that而不用which的情况(1)先行词为all, everything, nothing, something, anything, little, much, none,等不定代词时。 I am sure she has something you can borrow. Did you have anything you want to say for yourself?(2)先行词被the onl
4、y, the very, the same, the last, all, every, no, some, any, little, much等修饰时。 This is the very bus Im waiting for. The only thing we can do is (to) give you some money. (3)先行词是序数词或被序数词或最高级修饰时。 This train is the last will go to Suzhou. This is the most interesting film Ive seen.(4)当先行词既有人又有物时。Do you
5、know the things and persons they are talking about?(5) 当主句的主语是疑问词who或which时。 Which is the bike you lost? Who is the boy won the gold medal?(6) 有两个定语从句时，其中一个关系代词宜用which，则另一个用that。They secretly built up a small factory, produced things could cause pollution. （二）限制性定语从句中关系副词的用法关系副词（when, where, why）引导定
6、语从句时，既引导定语从句，又在定语从句中充当状语。关系副词可转化为介词+关系代词(which)结构。a. He told me the date he joined the Party.b. The hotel is the one I stayed last month.c. I know the reason she was so angry. 1、指出关系代词在下列句子中充当的成分，及是否可以省略a. The man (who) I talked with is our teacher. 关系代词在从句中作 可否省略 b. The man (whom/who) I nodded to i
7、s Mr. Li.关系代词在从句中作 可否省略 c. These are the trees which were planted last year. 作 可否省略 d. A plane is a machine that can fly. 作 可否省略 e. This is the scientist whose achievements are well known.作 可否省略 2、用定语从句改写下列两组句子。Mrs. Clark is angry with the goat. The goat is eating her flowers. Can you lend me the book? You talked about it last night. 3、由that或in which引导定语从句，引导词也可以省略。 I like the way_ you smile. I dont like the way _ hes looking at me. This is the way _ weve always done it.