Unit4 Discovering Useful Structures课件 2022-2023学年高中英语人教版必修第一册

Unit 4 Discovering Useful Structures 定语从句(Attributive Clause) 定语从句的定义：修饰_______或________的句子叫定语从句。 结构：________+________ 关系代词： 名词 代词 先行词 由关系词引导的定语从句 that, which, who, whom, whose （1）限制性定语从句：作定语，修饰先行词 （2）非限制性定语从句：作定语，修饰先行词或前面整个句子，主句和从句中有逗号 在从句中作主语/宾语/定语 关系代词 注意：作主语时关系代词不可以省略，作宾语则可以 which : that: who： whom : whose： 指物，作主语/宾语 关系词 关系副词 指物/人，作主语/宾语 指人，作主语/宾语 指人，作宾语 指人/物, 作定语，后面一定带有名词。 Fill in the correct relative words: I know a man _________ is a teacher. I know the man _______________ you just talked with. I have an apple ___________ is red. This is the pen ___________ he bought yesterday. The girl________ mother is a teacher can speak English very well. who/that which/that which/that who/whom/that whose who that which who whom 关系词的选择 (1)分析从句成分，判断从句成分是否完整 如果从句不完整(缺主语 /宾语)，则用关系代词 (2)看先行词是“人”还是“物” 关系代词 例句 The expert who visited our class yesterday is from Canada. Is he the boy who always wins maths competitions? The one (who/whom) we are talking about is a scientist. 指人 who, whom在 从句中 分别作 主语和 宾语 whose 在从句 中作定 语 This is the teacher to whom I talked. 指物 She is the girl whose brother is studying abroad. The room whose window faces south is mine. I talked with the man whose house was destroyed in the flood. He has written a book whose name I've forgotten. 指人 关系代词 例句 This is a book that interests a large number of people. Is there anything (that) I can do for you? He that would eat the fruit must climb the tree. He is a man (that) you can safely trust. The bus which has just left was the last one today. The fish (which) I bought this morning were not fresh. 指物 指人 指物 that在从句中作主语或宾语 which在 从句中 作主语 或宾语 1. that和which在指物的情况下一般都可以互换，但在下列情况下，一般用that而不用which。 ① I am sure she has something that you can borrow. ② Do you have anything that you don't understand? （1）先行词为everything, nothing, something, anything 等不定代词 Attention ① Donald Trump is the first president (that) has lost the