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课件网) Unit 4 Amazing Science Section B Topic 3 China is the third nation that sent a person into space. Review He is an American astronaut who was the first man to set foot on the moon. 关系代词 定语从句 先行词 Shenzhou Ⅹ is a spaceship that/which was launched with three astronauts in 2013. Who 人 Which 物 that 人/物 人 物 关系词 所修饰的先行词 在从句中成分 _____ 人 主语，宾语，表语 whom _____ _____ that 人或物 主语，宾语，表语 whose 人或物 _____ _____ 物 主语，宾语 Who 人 宾语 由关系代词引导的定语从句 Which 定语 ( ) 1. The number of people ____ lost their lives in Indonesian earthquake reached as many as 6200. A. which B. who C. whom D. when ( ) 2. —Have you been to the new Sports Center _____ is just opened in town —No, not yet. A. where B. who C. that D. whom ( ) 3. This is a new museum _____ was built last year. A. when B. who C. which D. in which ( ) 4. That is the girl _____ I’ll never forget A. which B. with who C. to whom D. whom B C C D Pre-listening New words / ,lek tr n k/ adj. 电子的 electronic spacesuit / spe ssju:t/ n. 航天服 / tel sk up/ n. 望远镜 telescope What do you know about the spaceships What did Kangkang want to know He wants to know something about recent spaceship developments. development n. 发展 with the development of … 随着……的发展 develop v. 发展 developing adj.发展中的 developed adj. 发达的 While-listening 1b What can computers do to spaceships Tick the possibilities and then listen to 1a to check your answers. ( ) 1. make food for astronauts ( ) 2. change the speed of spaceships ( ) 3. control the direction of spaceships ( ) 4. control the temperature of spaceships Make predictions based on what you know. √ √ √ 1c Read 1a and fill in the blanks. Kangkang wanted to know something about recent spaceship developments. Mr. Brown told him that spaceships used to be _____by astronauts and now mainly use _____ controls. Then he explained to Kangkang that the speed and _____ of spaceships as well as the temperature are controlled by computers. Kangkang then realized he knew little about computer technology. Mr. Brown _____ him to learn to use computers well and make computers _____ us better in the future. Kangkang made up his mind to work hard to _____ computer technology. controlled electronic direction advised serve master (Kangkang is asking Mr. Brown something about spaceships.) Kangkang: Spaceships are so amazing. Mr. Brown, could you please tell me some recent spaceship developments Mr. Brown: OK. Spaceships (which now mainly use electronic controls) used to be controlled by astronauts. Kangkang: But how do they work Mr. Brown: Astronauts use computers to control the speed and direction of their spaceships, even the temperature. Kangkang: Perfect! But I know so little about computer technology. Mr. Brown: It's important to master computer technology. So I advise you to discover new ways to make computers serve us better. Kangkang: Good idea. Thanks ... ...
