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1、19A Unit4 Computer 知识点和练习知识点和练习一基础篇 （一） 核心单词1important a. 重要的 importance n. 重要性2necessary a. 必要的 need v. aux. 必须3happy a. 快乐的，幸福的 happily adv. 幸福地4planplanned，v. 计划 plan n. 计划5hide (hid, hidden) V. 隐藏6break (broke, broken) V. 打破，违犯freeze (froze, frozen) V. 使结冰，使冷冻7calculator n. 计算器8operate v. 动手术How
2、 do you operate this new machine ?operation n.手术9electric a. 电的 electric light 电灯 electricity n. 电 electronic adj. 电子的10weigh v. 称的重量weigh sth for sb.The watch weighs 0.45 kg.weight n. 重量11agree v. 同意 12. What does Joyce think of Sichuan food? 觉得怎么样？- How does Joyce like Sichuan food?比较： What does t
3、he thief look like? 某人长什么样？How does the thief look?13.taste n. 味道，味觉 taste v. 品尝The dish tastes good.He tasted the dish and found it was quite tasty.14. copy n. . 副本，拷贝 v. 抄写a copy of the questions ；a copy of Shanghai Students PostI copied the text twice yesterday.15.history n. 历史 historical adj. 历史
4、的16.develop v. 发展 development n.17.difficult a.困难的 difficulty n. 困难18.businessman n 女商人 businesswoman n. 男商人busy a. 忙的 business n. 生意business hours / letters19. possible a. 可能的 impossible a.不可能的 possibly adv. 可能地220.like v. 喜欢 dislike v. 不喜欢21.honest a. 诚实的 honesty n. 诚实 dishonest a. 不诚实的22.length n
5、. 长度 long a. 长的height n. 高度 high a. 高的weight n. 重量 wide a. 宽的，宽阔的23. mouse n. 老鼠 鼠标24. knowledge n. 知识 know v. 知道， 认识25. type n.类型 v. 打字26print v. 打印 印刷27judge n. 法官 v. 判断 审判28thus adv. 如此；这样；因而29.几组反意词 fast - slow, high - low, heavy - light, flat - rough（二）词组1. plan to do sth. 计划做某事I plan to study
6、abroad next year.(v.)2. operate on sb. 为某人开刀 3. give a computer instructions by putting a program into it.通过往计算机中输入程序来给计算机指令by doing sth 通过干。 。 。 。He decorated a Christmas tree by using a lot of coloured lights.他用很多彩灯来装饰圣诞树4.raise questions 提问, raise one hand 举手raise a pet 养宠物, raise some money 酬钱,r
7、aise v. 举起 提升；提出； 提高； 及物动词 后接宾语 rise v. 上升 上涨； 增长；起立；不及物动词 ，后不接宾语比较：The river rose two feet.The sun rises in the east.He rose early to do more reading.He rose to answer the question.5. be made of wood 用制成6. lose weight 减肥, put on weight 增肥7. agree with sb 同意某人8so that 以便He got up early so that he co
8、uld catch the school bus.-He got up early in order to catch the school bus.9. a number of +复数名词 很多，一些（谓复）A number of people have seen this film.10.depand on 依靠 依赖3He has grown up. So he hasnt depended on his parents any longer.他已长大了，他不再依靠父母了mon knowledge 常识It is common knowledge that the earth moves
9、 around the sun.地球围绕太阳转是常识。12.for these reasons 由于这些原因13. the answer to the question 这个问题的答案 to 表示 “. 的”类似用法： the key to the door the solution to the problem 14. for the time being 暂时 眼下15.create new ideas 创造新思想16. have nothing to do 无所事事17. change our lives 改变我们的生活18. a human being 人类19. make a mis
10、take 犯错误20.for example 例如（用作插入语）,后接句子：such as 例如（只加 sth 或 doing sth）后接单词或词组In many countries, Italy, for example, family life is much more important than here.People such as my sister get excited easily.21. in history 在历史上（三） 英文解释1depend on ：rely on ; need 依靠，依赖Do not depend on your dictionary all t
11、he time.2for the time being ：at present; now ; 暂时 眼下 现在Ill let you keep the book for the time being, but you must return it to me next week.3for example 例如（用作插入语）：such as 例如（只加 sth 或 doing sth）In many countries, Italy, for example, family life is much more important than here.People such as my siste
12、r get excited easily.4. realize : come true 实现5.over: more than 超过6. be able to : can 能够7. hardly ever: almost none 几乎不练习1 We often call computers_ brains. (electricity)2 It is _that students should attend all the lectures.(importance)3 Would you like to buy me a packet of _food? ( freeze)4 I can us
13、e a word processor but I dont understand its_.( operate).5 Bananas are always sold by_.( weigh)46 He finds it _ to stop smoking.( difficulty)7 She looks _enough, you can believe her.(honesty)10. Yangzi River is about 6300 kilometers in_( long)11. Whats the _ of the mountain? (high)12. Could I have a
14、 word with you, if you are not too_. ( business)13. Come as quickly as_(possibly).14. My mother _seeing you with me because you are dishonest.( like)15. She will _be the greatest writer in the future. ( possible)16. The sun _ in the east and _ in the west.A .riseset B. raise set C. risessets D. rais
15、essets17.She likes to play outside_ swimming in the river and climbing mountain, etc.A. for example B. so as C. such as D. so that18.In western countries, Children over 18 should depend on themselves.A. develop B. rely on C. live on D .spend 19. _visitors from home and abroad will visit Shanghai in 2010 .A. A number of B. The number of C. Huge amounts of D. An amount of20.She is seriously ill, doctors are preparing for operating_ her.A. in B. for C. at D. on二提高篇 1Unhappy a. 不幸的，不快乐的2plan to
