专题3.Unit 3 Computers单词，课文，知识点预习（沪教牛津版）

Unit 3 Computers单词，课文，知识点预习 【单词，课文，知识点预习】 一．单词学习 1. 原创精品资源学科网独家享有版权，侵权必究！6 学科网（北京）股份有限公司 学科网（北京）股份有限公司 学科网（北京）股份有限公司 2. order/ˈɔːdə/ v.订货 3. speaker/ˈspiːkə/ n.扬声器 4. mouse/maʊs/ n.鼠标 5. control/kənˈtrəʊl/ v.操纵 6. depend/dɪˈpend/ v. 依靠 7. railway/ˈreɪlweɪ/ n.铁路系统 8. total /ˈtəʊtl/n.总额 9. popular /ˈpɒpjʊlə(r)/adj.受喜爱的 10. compare /kəmˈpeə/v.比较 11. main Unit n主机 12. type /taɪp/v.打字 13. expensive/ɪkˈspensɪv/adj昂贵的 14. speed /spiːd/ n.速度 15. company /ˈkʌmpənɪ/n.公司 16. inch /ɪntʃ/n.英寸 17. monitor /ˈmɒnɪtə/n.显示器 18. keyboard /ˈkiːbɔːd/ n.键盘 19. brain /breɪn/n.脑 20. tiny /ˈtaɪnɪ/adj. 极小的 21. operate /ˈɒpəreɪt/ v.操作 22. price /praɪs/n.奖金 23. sell /sel/ v.出售 24. calculate /ˈkælkjʊleɪt/ v.计算 25. work as 从事……工作 26. (be) unaware of没意识到;未察觉 27. depend on依靠 28. in addition除……以外(还) 29. grand total总计;共计 30. look forward to盼望;期待 二．课文学习 Unit 3 Computers Computer facts  Smaller and better 1 In the 1940s, the first computers were bigger than cars. Now computers are ②becoming smaller and better. Some computers are tiny. You ③may ④be unaware of them. There is ⑤probably one inside your TV or ⑥washing machine. You ⑦depend on computers more than you realize. What can we ⑧do with computers? We can use computers to calculate. They can calculate at a faster speed than we can and ⑨almost never give wrong answers. We can also type and draw things with them. ⑩In addition, computers can do important jobs⑪like operating railways and flying planes and spaceships. Is a computer cleverer than me? The answer is “No”. Your brain can produce new ideas but computers cannot. However, one day computers may ⑫be able to a better job than human beings. For example, they may ⑬be better than doctors at doing their job. What will ⑭happen to us if computers can do all our jobs? Will we have nothing to do? Computers may change our lives, but will they make them better? 知识点： ①In the 1940s 在20世纪40年代 ②become 变得；become-became-become ③may be 也许，情态动词+be；maybe也许 ④be unaware of 没有意识到=be not a