Unit 4 Natural Disasters Discovering useful structures 课件-2023-2024学年高中英语人教版（2019）必修第一册

Unit 4 Natural disasters Discovering useful structures 定语 形容词 名词 介词短语 1.什么定语？ 非谓语动词 从句 (定语从句） She is a beautiful girl. Amy is a woman teacher. The girl in red is my sister. I have something to say. The boy making face is my son. Japan is a developed country. I like people who smiles a lot. 定语：“定”语相当于形容词，修饰名词或代词，常译为“的” 什么可以做定语 定语从句 定义 结构 定语从句 2. 什么定语从句？ 关系词 修饰名词或代词的句子 先行词 关系词 被修饰的名词或代词 引导定语从句的关联词 关系代词 关系副词 who whom that which whose as when where why eg. This is the car which he bought last year. Do you know the man who spoke just now? Do you know the man? He spoke just now. １. I have read the newspaper (which) carries the important news. I showed him the letter (which) I received this morning. I have read the newspaper. It carries the important news. ２. I showed him the letter. I received it this morning. ３. 将下列句子改成一句话 关系代词在定语从句中有三个作用： 1. 引导一个定语从句； 2.在从句中代替先行词； 3.在从句中担任某一句子成分。 which 的用法 1. which 在从句中作主语、宾语或介词宾语,指物。  They planted the trees which didn’t need much water.  The fish which we bought were not fresh.  This is the house which we lived in last year. → This is the house ________ we lived last year. 主语；指物 宾语；指物 介词宾语；指物 in which which作介词宾语时，介词既可放在关系代词which 之前，也可以放在从句中动词之后 where 2. that 在从句中作主语或宾语，指人或物，作宾语时可省略。  A plane is a machine that can fly. 作主语；指物  The noodles (that) I cooked were delicious. 作宾语；指物  Let’s ask the man that is reading a book over there. 作主语；指人  The girl (that) we saw yesterday is Jim’s sister. 作宾语；指人 that 的用法 3. who在从句中作主语和宾语, whom 在从句中作宾语；都指人。  The foreigner who visited our school yesterday is from Canada. 主语；指人  The boy who broke the window is called Michael. 主语；指人  The person (whom / who) you just talked to is Mr Li. 宾语；指人  Mr Read is the professor to whom you should write. 宾语；指人 在定语从句中紧接着介词的只能用which和whom。指人用whom，指物用which who 的用法 4. whose 在从句中作定语,修饰人或物，意为“……的”，可与 of which (whom) the ...