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课件网) Unit 4 Amazing Science Topic 3 China is the third nation that sent a person into space. Section D Teaching aims By the end of the class 1. Some words: certain,warn, might, housework 2. Some phrases: for certain, on one’s own, so far, be surprised at, no longer 3. Some sentences: (1)No one knows for certain, but most people think that robots will be part of our lives. (2)In a few years, perhaps robots will think on their own, just as people use their brains and act for themselves. (3)One scientist warns that if robots start to think for themselves, they will no longer want to be our servants, but our masters. 3. Key points: Review the grammar attributive clauses. 4. Difficult points： 1. One scientist warns that if robots start to think for themselves，they will no longer want to be our servants，but our masters. 2. No one knows for certain，but most people think that robots will be part of our lives. Revision in class 毫无疑问 让某人一直做某事 做生意 在某人的帮助下 例如 订货和取消订单 出故障 出现，产生 多亏 像平常一样 而不是，取代 打开/关掉/ 开大声点/关小声点 there is no doubt keep sb. doing sth. do business with the help of=with one's help for example=for instance place and cancel orders break down come into being thanks to as usual instead of turn on/turn off turn up/turn down Read through Sections A-C and understand the underlined parts. Grammar Attributive Clause (I) He is our national hero who/that traveled around the earth in Shenzhou V for 21 hours in 2003. China is the third nation that sent a person into space. More and more people have personal computers that /which are used to play games and watch movies. 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作主语时，从句的谓语动词的人称和数须和先行词一致。 e.g. I don’t like people who talk much but do little. 1.Sorry, we don’t have the coat _____ you need. A. what B. who C. whom D. which 2.—What are you doing —We are talking about the books and writers _____ we like. A．that B．which C．who D．whom 3.Do you know the man ____ ... ...
