Unit 4 Computers 知识点讲解+精选精练 2023-2024学年 牛津上海版（试用本）英语九年级上册

Unit 4 Computers 知识点讲解 单词（见课文后的word box） 词组 1. smaller and smaller 2. be the size of… 3. be small enough to do sth. 4. a bar of chocolate 5. be unaware of 6. depend on 7. common knowledge 8. super calculators 9. electronic brains 10. the answer to… 11. for the time being 12. raise some questions 13. spend one’s lives 14. recognize one’s voice 15. obey one’s commands 16. millions of pages 17. contain pictures, videos and sounds 18. read about 19. a video of him 20. more popular 重点句型 1. Other kinds of computers are so tiny that you may be unaware of them. 2. It is common knowledge that computers are super calculators. 3. However, one day computers may be able to do most things that a human brain can do and even do them better. 4. You can buy a program which helps the computer recognize your voice. 5. Many of today’s computers have CD-ROM or DVD-ROM drives. 6. For example, you can use your computers to read about a famous person from history and you can see a photograph or video of him or her, and even listen to them speaking. 7. Since then computers have become smaller and smaller. 8. Desktop computers are the size of televisions. 9. Palmtop computers are small enough to put it in your pocket like a bar of chocolate. 10. There is probably a computer inside your TV, telephone, or washing machine. 11. You probably depend on computers more than you realize. 12. More importantly, computers can operate railways and fly aeroplanes and spaceships. 13. Computers may be better than doctors at doing their job. 14. What will happen to us if computers can do our jobs? 15. You do not even need to know how to type. 语法 1.Comparison of adjectives In the 1940s, the first computers were bigger than cars. These new chairs are more comfortable than the old ones. Simon is the tallest boy in our class. This is the most intelligent robot I have ever seen. 2. Comparison of adverbs Philip sings more beautifully than you do. Eric completed the science test (the) most quickly in our class. To