Unit4 Topic1 Section D-2023-2024学年九年级英语上册【趣味课堂】精品课件（仁爱科普版）

Unit 4 Amazing Science Section D Topic 1 When was it invented? Review ( )1.—I’ve finished my homework, mom. May I go out to play? —Really? When _____ it _____? A. is; finished B. was; finished C. will; finish D. does; finish ( )2. —Could you tell me how the car accident _____? —Of course. A. came about B. came on C. came over D. came out ( )3. —Why is Miss Li so angry? —Because _____ of the students has finished yesterday’s homework. A. none B. all C. every D. no ( )4. Mr. Feng gets up early in the morning _____ he can cook breakfast. A. in order B. in order to C. so that D. so as to I. Choose the right answer. You can do it. B A A C 1. The famous inventor has invented more than three hundred __________ （发明）. 2. The boys play with fire at home. How ______（愚蠢的） they are! 3. I don’t think your __________（想法）can work better than mine. 4. I’ll buy a sweeper ________（机器人）to help my grandmother do some cleaning. II. Fill in the blanks with the correct form according to the Chinese. Review inventions silly thought(s) robot Pre-reading New words explorer /ɪkˈsplɔ:rə/ n. 探险者，勘探者 mark /ma:k/ n.记号；符号 v. 做记号 system /ˈsɪstəm/ n. 体系，制度 man-made adj. 人造的；非天然的 1. in the sky 2. find out 3. work well 4. at night 5. as long as 6. the rest of 7. at any time 8. in the future 在天空中 查明，弄清楚 奏效，起作用 在夜晚 只要（主将从现） 剩下的 在任何时候 Key phrases 在将来 While-reading How did the early explorers know where they were? by using stars in the sky by using GPS What is GPS? Let’s watch the video. Know about BDS in China. Read the passage and discuss the questions on Page88. 1. How did the early explorers know where they were? 2. What’s the disadvantage of using the stars as guiding marks? 3. What is a GPS? Is it useful to use? 4. What do you think the GPS will be used for i