Unit 4 Amazing Science Topic 3 Section C课件 2023-2024学年仁爱科普版九年级英语上册

Unit 4 Amazing Science Topic 3 China is the third nation that sent a person into space. Section C Teaching aims By the end of the class 1. Some words: doubt, tiny, inside, brain,cancel, connect 2. Some phrases: no doubt, for instance 3. Some sentences: (1) There is no doubt that computers are very useful in technology and business (2) Computers help us at work and at home, but they must be used properly. 3. Key points: Grammar: Attributive Clause 4. Difficult points： 1. There is no doubt that computers are very useful in technology and business. 2. With the help of computers，doctors can find diseases easily and solve other problems. 3. Besides, not everything we read on the Internet is true or good for us. 1. 把......介绍给某人 2. 过去常常做… 3. 被…控制 4. 用…做… 5. 几乎不懂电脑技术 6. 建议某人(不)做… 7. 使…做… 8. 更好地服务某人 9. 谢谢你的… 10. 并且，和… 11. 下决心做… 12. 随着……的发展 13. 询问某人关于某事 14. 做某事的一种方式 introduce ... to sb. used to do… be controlled by… use sth to do… know little about computer technology advise sb (not) to do… make sb do… serve sb better Thanks for sth / doing sth. as well as make up one’s mind to do with the development of … ask sb. about sth. a way to do sth. = a way of doing sth. Revision in class Revision 定语从句 （1）含义：修饰某一名词或代词的从句叫定语从句。一般紧跟在它所修饰的先行词之后。（2）先行词：被定语从句修饰的词叫先行词。 （3）关系词： ①含义：引导定语从句的词叫关系词，关系词有关系代词和关系副词。 ②关系代词有that, which, who, whom, whose, as等；关系副词有when, where, why等。 ③作用：引导定语从句；代替先行词；在定语从句中担当一个成分。 e.g. The fish that/which come from the river can’t live in the sea. （先行词）（关系代词） The workers that/who work very hard can get more money. （先行词）（关系代词） ④ 先行词表人用who/that, 主语，宾语，表语. 先行词表物用which/that, 主语，宾语，表语. 先行词表人或物的，用whose, 即whose + n. 先行词表时间用when, 状语 先行词表地点用where, 状语 先行词表原因用why, 状语 ▲. 1. 当关系代词在从句中作主语时不能省略，作宾语时则可以省略. 2. 当先行词被序数词、形容词最高级修饰或是不定代词或既有人又有物时，关系代词 只能用that，而不能用which. e.g. This is the best film that I have seen. 3. 关系代词在定语从句中