unit3computers重点词汇

八年级英语上册Unit 3 computers考点及练习解析1.order用作名词，意为“订货;订购”The company received a large order for bikes.这家公司接到一份要求大量供应自行车的定单。

order作及物动词，意为“订购，订制”。

we can order tickets by phone. 我们可以通过电话订票。

order作及物动词，意为“命令”。

order sb to do sth。

意为命令某人做某事。

He ordered us to stand outside. 他命令我们站到外面去。

练一练：1.老师命令我把教室打扫干净。

2. 妈妈命令爸爸做饭。

2. seem连系动词，，意为“似乎是，好像，仿佛”。

①seem+形容词That seems very easy·那似乎很容易②seem+动词不定式It seems to rain.好像要下雨T③It seems+that从句It seems that no one knows what happened.似乎没人知道发生了什么练一练：1.It ______ that their living conditions _______ not very good in those days.A. seem; areB. seems; wereC. seems; areD. seemed; were2. 这个小城镇似乎有点儿变化。

3.be short of意为“缺少”。

Most children are short of sleep.大多数孩子睡眠不足。

4.in the 1940s意为“在20世纪40年代”。

在英语中，表示在某一年代用介词in，在整十年份后加“s”，前面加定冠词thein the 1920s 在20世纪20年代in the 1780s在18世纪80年代练一练：1.These eggs were found in the Gobi Desert by a group of scientists ________.A. in the 1920B. in the 1920sC. in 1920sD. in 1920s'5. be unaware of 意为没有意识到；为察觉。

unit3 各部分知识点学习Reading一、词汇讲解1. In the 1940s, the first computers were bigger than cars.在20世纪40年代，第一批电脑比小汽车还要大。

in the 1940s意思是“在20世纪40年代”，它还可以表示为in the 1940’s。

同样的，“在19世纪70年代”可以写为in the 1870s。

2. You may be unaware of them. 你可能没有察觉到他们。

unaware，形容词，“没意识到；未察觉”的意思，常用的搭配有be unaware of sth.。

unaware 是由词缀un-和aware构成。

aware，形容词，“察觉到；发觉”的意思。

e.g. At that moment, many people were unaware of the coming of the earthquake.在那时，很多人都没有意识到地震即将到来。

3. In addition, computer can do important jobs like operating railways and flying planes and spaceships.此外，电脑能做重要的工作，例如：控制铁路和操纵飞机和飞船。

（1）in addition意思是“除……之外（还）”，用于句首时，其后常用逗号与句子分隔。

e.g. In addition, students can use computers in the library.此外，学生能在图书馆使用电脑。

（2）like，介词，意思是“例如、比方”，常用于举例。

e.g. I love doing sports like playing basketball and football.我喜欢做运动，如打篮球和足球。

4. What will happen to us if computer can do all our jobs?如果计算机能做所有我们的工作，什么事会发生在我们身上呢？happen to sb./sth.意思是“遭到；遇到”。

Unit 3 Computers 单元要点预览Ⅰ词语辨析Ⅱ词性变化Ⅲ重点词汇1. sum n. 金额; 款项; 总数; 总和[典例]1). He was fined the sum of 200. 他被处以200英镑罚金。

2). The sum of 5 and 3 is 8. 5加3的和是8。

[重点用法]in sum简言之; 总而言之sum sb/sth up形成对某人[某事物]的看法[练习] 中译英1). 总之, 计划告吹了。

______________________________________________________________________ 2). 我认为她是个很能干的经理。

______________________________________________________________________2. advantage n.优点；优势；有利条件[典例]1). He has the advantage of a steady job. 他有工作稳定的有利条件。

2). They took full advantage of the hotel's facilities. 他们充分利用旅馆的设备。

[重点用法]take advantage of 对……加以利用；欺骗to sb.’s advantage 对某人有利have /get/win an advantage over 〔of〕胜过；优于[练习] 中译英1).协议对我们有利。

______________________________________________________________________ 2).她利用了我的慷慨。

______________________________________________________________________3. goal n. 球门；进球得的分；目标[典例]1). He headed the ball into an open goal. 他乘虚把球顶入球门2). We won by three goals to one 以三比一获胜。

Unit 3 Computers ✧单词✧短语✧重点句型1. What were the first computers like?最初的计算机怎么样2. What do you think of the computers, Frank?弗兰克，你认为计算机怎么样？3. How much time do you spend playing computer games every week?每周你花多少时间玩电脑游戏？✧课文翻译Smaller and betterIn the1940s, the first computers were bigger than cars. Now computers are becoming smaller and better.Some computers are tiny. You may be unaware of them. There is probably one inside your TV or washing machine. You depend on computers more than you realize. What can we do with computers?We can use computers to calculate. They can calculate at a faster speed than we can and almost never give wrong answers. We can also type and draw things with them. Inaddition, computers can do important jobs like 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 be able to a better job than human beings. For example,they may be better than doctors at doing their job.What will happen 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?越小越好在20世纪40年代，第一台计算机比汽车大。

教材词汇要记牢(1－8册已学词汇) Ⅰ.阅读单词——我会认1．laptop n．手提电脑2．analytical adj.分析的3．sum n．总数；算术题；金额4．artificial adj.人造的；假的5．designer n．设计师6．chip n．碎片；芯片7．network n．网络；网状物8．web n．网9．Mars n．火星10．supporting adj.支持的；支撑的11．programmer n．程序员；程序师12．teammate n．同伴；伙伴13．mop n．拖把v t.用拖把拖；擦14．naughty adj.顽皮的；淘气的15．niece n．侄女；甥女16．spoil v t.损坏；宠坏Ⅱ.重点单词——我会写1．revolution n．革命2．tube n．管；管子；电子管3．mobile adj.可移动的；机动的4．rocket n．火箭5．explore v t.& v i.探索；探测；探究6．anyhow ad v.(也作anyway)无论如何；即使如此7．goal n．目标；目的；球门；(进球)得分8．happiness n．幸福；快乐9．download v t.下载10．virus n．病毒11．signal v i.& v t.发信号n．信号12．type n．类型v t.& v i.打字13．coach n．教练14．arise v i.(arose，arisen)出现；发生15．electronic adj.电子的16．character n．性格；特点Ⅲ.拓展单词——我会变1.universal adj.普遍的；通用的；宇宙的→universe n．宇宙→universally ad v.普遍地；一致地2．simplify v t.简化→simple adj.简单的→simply ad v.简直；只；不过3．operator n．(电脑)操作员；接线员→operate v．操作；做手术→operation n．操作；手术4．logical adj.合逻辑的；合情理的→logically ad v.逻辑上；合逻辑地；有条理地5．technology n．工艺；科技；技术→technological adj.科技的6．intelligence n．智力；聪明；智能→intelligent adj.智能的；聪明的7．solve v t.解决；解答→solution n．解决办法8．reality n．真实；事实；现实→real adj.真实的9．personal adj.私人的；个人的；亲自的→personally ad v.就个人而言；亲自→personality n．个性；人格10．total adj.总的；整个的n．总数；合计→totally ad v.完全地；整个地11．application n．应用；用途；申请→apply v．运用；涉及；申请→applicant n．申请人；求职者12．finance n．金融；财经→financial adj.金融的；财经的→financially ad v.经济上；财政上；金融上13．appearance n．外观；外貌；出现→appear v．出现；到场14．calculate v t.计算→calculator n．计算器Ⅳ.核心短语1．have...in common有……共同之处2．from...on从……时起3．as a result结果4．by oneself独立地5．in a way在某种程度上6．make up编制，编造；组成；和好7．after all毕竟；终究8．with the help of 在……的帮助下9．deal with处理；安排；对付10．watch over看守；监视增加词汇来助力(9－10册未学词汇)1．reference/'refərəns/n.参考2．precise/pr I'sa I s/adj.精确的，准确的3．simplify/'s I mpl I fa I/v t.单一化，简单化4．portable/'pɔːtəbl/adj.轻便的；手提的；便携的5．shortcoming/'ʃɔːtˌkʌm Iŋ/n.缺点；短处6．update/ʌp'de I t/v t.更新7．tendency/'tendəns I/n.趋向，倾向8．reliable/r I'la Iəbl/adj.可靠的，可信赖的9．swoop/swuːp/v i.突降；猛扑10．parcel/'pɑːsl/n.小包；包裹经典句式需悟通1．I developed very slowly and it took nearly two hundred years before I was built as an analytical machine by Charles Babbage.我发育缓慢，差不多到了两百年之后，查尔斯·巴比奇才把我制成了一台分析机。

一、短语知识点总结1、in the 1940s 在20世纪90年代的时候 =in the 1940's2、be unaware of 不知道3、smaller and smaller 越来越小比较级+比较级越来越……4、be unaware of ~ 没意识到……5、inside prep. 在……里面6、depend v. 依靠，依赖 dependent adj.依赖的，依靠的；depend on it 毫无疑问，没问题It depends. 这也难说，要看情况而定。

7、do with~ 处理(与what 搭配） deal with~ 处理（与how搭配）11、addition n. 加法，增加物in addition= besides另外 in addition to= as well as 除了……之外12、like v. 喜欢prep. 像……like sth 喜欢某物 like to do sth = like doing sth 喜欢做某事13、one day （过去或将来的）某天 some day (将来的）某天14、be able to do sth = can 能够做某15、For example 例如（一个例子） Such as 例如（多个例子）16、be better at doing sth 更擅长做某事 be good at doing sth 擅长做某事be good for ...对…有好处be good to...对…友好17、have nothing to do 无事可做18、make v. 制作，使得，让make sb do sth. 使得某人做某事make sb adj 使得某人……19. fact n. 事实，真相 In fact 事实上，其实=As a matter of fact 事实上，其实二、 More Practice1．Thank you/ thanks for (doing) sth 因……而感谢某人2．With +n./prep/doing 有…… Without +n./prep/doing 没有……，缺乏……3．Used to do sth 过去常常做……Be used to doing sth 习惯做某事4．Sb spend time/money on sth 某人在某物上花钱/时间Sth costs money某物花钱Pay for sth 为某物付钱It takes sb some time to do sth 花某人多少时间做某事6．In front of 在……的前面(范围之外） In the front of 在……的前面（范围之内）7．Be bad for 对……有害8．Give some advice 给建议9．Hope for sth 希望得到某物 Hope to do sth.希望做某事Hope (that)+句子希望……10．Stop to do sth 停下来去做某事（做别的事）Stop doing sth 停止做某事（停止正在做的事）Stop sb from doing sth 阻止某人做某事11. By doing sth 通过做某事12. Have to 不得不……（客观的）Must 必须（主观的）13. How often 多久一次（问频率）14. Much +比较级……的多15. One of +最高级+n.(Pl.) ……之一16. Become +adj 变得……17. Look forward to+doing sth 期望……在介词后面加动词，都加动词的ing形式。

Unit 3 Computers【重点单词短语】1.order n.订货，订购；命令；顺序Eg: Listen to a woman making a phone order.Please put your books in a good order.This is an order!【拓展】order v. 订购，订制Eg: We can order tickets by telephone.order v.命令order sb. to do sth. 命令某人做某事Eg: He ordered us to stand outside.【小试牛刀】请核对一下您的订单。

请把这些图片按顺序摆放。

50%的人们反对这项命令。

你可以教我怎样网上订购书吗？没人可以命令我做任何事！pare v.对比; 比较Eg: Don't compare yourself with others.I can only compare the experience to fall ing in love.【拓展】compare A with B 拿A和B比较compare A to B把A比作B Eg: Comparing the computer with the old one, it is more beautiful.He compared Beijing to the heart of China.【小试牛刀】He Shanghai as the star of China last year. (compare)you him, you are excellent. (compare...with.../compare...to...) 我们把老师比作园丁。

3.control v.操纵，控制n.控制Eg: Nobody knows who is in control of the club.He lost control of his car.He controls the largest retail development empire in southern California. 【拓展】sb. be in control of sth./sb. 某人控制某物/某人sb. lose control of sth./sb. 某人失去对某物/某人的控制sth./ sb. be under control 某物/某人在控制范围内sth./ sb. be out of control某物/某人在控制范围外【小试牛刀】I should myself. (control)They the factory last year. (control)他掌管着整个家族。