Unit 4 Computer facts知识点.doc

Unit 4 Computer facts1. smaller and smaller越来越小 (比较级用and 连接表示越来越)2. more and more beautiful 越来越美丽3. build built built 建造 rebuild 重建 building 建筑物4. in the 1940s在二十世纪40年代5. bigger than 比.大 (than 比较级标志词)6. since then自从那以后（现在完成时）7. Desktop computers are the size of televisions. 台式电脑和电视机一样大小=Desktop computers are as big as televisions.8. watch TV看电视9. They are small enough to put in your pocket. 它们小到可以放进你的口袋= They are so small that you can put them in your pocket.10. a bar of chocolate一条巧克力11. tiny微小的12. be unaware of= be not aware of =not realize没有意识到13. washing machine洗衣机14. depend on=rely on依靠15. It depends. 看情况而定。16. dependent依赖的 independent独立的17. realize意识到， 实现18. Its common knowledge.常识19. have something in common有共同之处20. enrich our knowledge丰富我们的知识 know knew known21. calculate 计算, 动 calculator 计算器22. rarely=seldom很少，难得 (在反义疑问句中是否定词)23. type 打字，类型 typist打字员24. print打印，印刷25. draw drew drawn 画， 拖26. more importantly更重要的 （副词单独使用， 修饰整个句子）27. the importance of 的重要性28. operate railways操控铁路29. operate on sb. operation给某人动手术30. fly flew flown飞 flight航班，飞行，名31. spaceship宇宙飞船32. in space在太空33. for these reasons=because of these reasons=due to these reasons由于这些原因34. electronic brain电脑（电子的大脑）35. electric light电灯 electricity电36. clever=smart=bright=wise聪明的37. the answer to this question这个问题的答案38. for the time being=at present目前，暂时39. understand understood understood 明白，理解，懂得40. meaning meaningful meaningless意思， 有意义的， 无意义的41. What do you mean by.? meant meant 你说的是什么意思？42. be able to do sth.=can do sth. 能够做某事43. human humans人44. be better at doing sth. 更擅长于做某事 (good比较级)45. true truly truth真的 形， 副， 名46. raise interesting questions提出有趣的问题47. happen to us发生在我们身上48. spend our lives spent spent度过我们的生命49. have nothing to do无事可做50. need to do sth 需要做某事 necessary 有必要的51. buy a program bought bought 买一个程序52. recognize your voice辨认你的声音53. obey ones commands 听从.的命令54. have a good command of 精通， 对.掌握熟练55.write letters wrote written写信56. drive 驱动器， 驱赶， 驾驶57. hold millions of pages of writing held held容纳好几百万页文字58. contain videos包含录像59. a famous person一个有名的人60. listen to them speaking 听他们演讲Unit 4 Exercises 61.screen 屏幕62.monitor 显示屏， 班长63.keyboard 键盘64.type in information 输入信息65.What important information! 多么重要的信息啊！66.store 储存， 商店67.mouse 鼠标， 老鼠 （复 mice ）68.main unit 主机69.electronics 电子设备， 电子器材70.speaker 喇叭， 说话者71. instruction 指令， 命令， 指示72.make a computer work 使一个电脑运作73.expect sb. to do sth. 期望某人做某事74. a lot 很多 （修饰动词）75.tell sb. to do sth. tell sb. not to do sth. told told 叫某人做某事， 否定76.as well as 和Gpare 比较78.salesman 推销员，售货员79.be made of leather 由皮制成的80.Youre right. = Youre correct. 你是对的。 81.I see. 我明白了。 82.model 型号83.modern 现代的84.easy easily 简单的，形， 副85.a speech competition 一个演讲比赛86.score 分数87.confidence confident 自信心， 名， 形88.ability able 能力， 名， 形89.sensible 明智的 sense 感觉， 感官， 意识90.arrangement arrange 安排， 名， 动91.argument argue 争论， 名， 动92.fill out=fill in 填写93.wise wisely wisdom 智慧的，形， 副， 名94.order订购95.in order to do sth.=so as to do sth. 为了做某事 否定 in order not to do sth. =so as not to do sth.96.detail 详情， 细节97.blank 空白的， 空白98.fill in/out the blanks填空99.supply贮备，供应量，供应，补充100.contact 联系人， 联系， 接触101. a reference book一本参考书102.quantity数量 quality 质量103. price 价格 prize 奖励104. total 总数， 总计 ， 全部的， 完全的105.agree to do sth. 同意做某事 agree with sb. 同意某人 disagree 不同意106. I couldnt agree more. 我完全赞同。 107. beef 牛肉108.pork 猪肉More practice The history of the Internet109. research研究，调查110.team团队111.in the United States=in America在美国112.develop development开发 动， 名113.link=connect连接114.together 一起115.fridge 冰箱116.system系统117.a university一个大学118.department部门，系，科 119.share resources with each other互相分享资源120.another problem另外一个问题121. complicated复杂的，难懂的122.overcome difficulties克服困难123. gradually渐渐地124. scholar学者 scholarship 奖学金125.the number of users 使用的人数（谓语用单数）126.increase 增加 decrease 减少127.wide 宽的 widely 广泛地 widen 拓宽128.available可利用的， 可得到的129.electronic mail 电子邮件130.continent大洲131.convenient方便的13