U4 Computer Facts Phrases: be (un)aware of(+doing sth)=realize that... (没)意识到；未察觉 common knowledge It’s common knowledge that=As we all know众所周知 常识 for the time being=at present=now 暂时;眼下 depend on=rely on 依靠，依赖 contact with 与...联系 a quantity of 大量的 take a seat 入座 seem to be 看来，好像 be short of=be lack in=lack sth=a lack of sth 缺乏 be used for doing=be used to do sth. 被用来做某事 help sb. do sth.=help sb. with sth. 帮助某人做某事 hear from=receive a letter from（区别：hear of） 听到，收到...的来信 since then=ever since 从那以后 the answer to the question 问题的答案 be able to do 能够做某事 be good at doing sth.=do well in sth. 擅长做某事 have nothing to do with 与...无关 millions of（区别：two million） 数以百万计 be popular with/among 在...中受欢迎 obey one’s commands 服从某人的命令 put forward 提出 in my opinion=as far as I’m concerned 我认为 in the end=at last=finally 在最后 share sth. with sb. 与某人分享某物 overcome these difficulties to do sth. 为了做成某事克服很多困难 the number of (区别：a number of 大量的) ...的数量 be available to 可被利用/得到的 a wide range of 大量的 communicate with sb. 与某人交流 a series of 一系列的 all over the world=throughout the world 遍布世界 in addition to 除了...之外 all the time 一直 at the same time 与此同时 more importantly 更重要的是 most importantly 最重要的是 词性转换: 1. unaware (adj.)无意识到的→aware adj 意识到的→(un)awareness (n.) (无)意识 2. rare (adj.) 罕有的→rarely (adv.) 罕有地 3. important (adj.) →importantly (adv.) 重要地→importance (n.) 重要性→unimportant (adj.)不重要的 4. operate (v.) 做手术,操控→operator (n.) 操作员→operation (n.)手术 5. long (adj.) 长的→length (n.) 长度 weigh (v.) 称重量→weight (n.) 重量 high (adj.) 高的→height (n.) 高度 deep adj.深的→ depth (n.) 深度→deepen (v.)加深 wide (adj.) 宽的→width (n.) 宽度→widen (v.) 加宽 7. mean (v.) 意思是→meaning (n.) 意思→meaningful(adj.) 有意义的→meaningless(adj.) 无意义的 8. electricity (n.) 电→ electric (adj.)带电的→electrical (adj.)与电有关的→electronic (adj.) 电子的 9. choose (v.) 选择→choice (n.) 选择 10. know (v.) 知道→knowledge (n.) 知识→knowledgeable (adj.) 博学的 11.print (v.) 打印→printer (n.)打印机，印刷工→printable (adj.)可印刷的 12.depend (v.)依靠→dependence (n.)依靠→dependent (adj.).依靠的；依赖的 →independent (adj.)独立的→independence (n.)独立 13.distance (n.).距离→distant (adj.)遥远的；疏远的；冷漠的 14.instruct (v.)提示，指导→ instruction (n.)指示；教导→ instructive (adj.)有教育意义的; 课文、词汇复习 Computer facts Smaller and smaller The first computers were built in the 1940s.They were b_____1_____ than cars! Since then computers have become smaller and smaller.Desktop computers are the size of televisions.Laptops are the size of big books. Now we have palmtop computers.They are small enough to put in your p_____2_____ like a bar of chocolate.Other kinds of computers are so tiny that you may be unaware of them.There is probably one inside your TV, tele ... ...
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