2020年高考英语经典实用 Unit 3 Computers要点梳理重点突破新人教版必修2.doc

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必修2 Unit 3 Computers要点梳理高效梳理·知识备考●重点单词1．calculate vt.计算→calculator n．计算器2．universal adj.普遍的；通用的；宇宙的→universe n．宇宙→universally adv.普遍地3．simplify vt.简化→simple adj.简单的4．technology n．工艺；科技；技术→technological adj.科技的5．revolution n．革命→revolutionary adj.革命的6．intelligence n．智力；聪明；智能→intelligent adj.有才智的；聪明的7．solve vt.解决；解答→solution n．解答8．reality n．真实；事实；现实→real adj.真实的，真正的9．personal adj.私人的；个人的；亲自的→personally adv.亲自地10．finance n．金融；财经→financial adj.金融的，财政的11．explore vt.&vi.探索；探测；探究12．anyhow adv.无论如何；即使如此13．goal n．目标；目的；球门；(进球)得分14．signal vi.&vt.发信号n．信号15．type n．类型vt.&vi.打字16．arise vi.出现；发生17．electronic adj.电子的●重点短语1．have...in common共有；共用2．from...on从……时起3．come into reality成为现实4．as a result结果5．in a way在某种程度上6．with the help of在……的帮助下7．deal with处理8．watch over看守；监视9．give away赠送10．be crazy about对……着迷11．make up弥补；整理12．after all毕竟●重点句型1．And my memory became so large that even I couldn’t believe it！我的存储量变得如此巨大，甚至连我自己都不能相信！2．Anyhow,my goal is to provide humans with a life of high quality.无论如何，我的目标是为人类提供高质量的生活。●高考范文(2020;2020·北京卷)假设你是红星中学高三一班的学生李华，为响应绿化祖国的号召，你班四月十二日去郊区植树，请根据以下四幅图的先后顺序，介绍植树活动的全过程，给某英文杂志的“绿色行动”专栏写一篇以Green Action in Our Class为题的英文稿件。注意：词数不少于60。提示词：郊区suburb_________________________________________________________________________________________________________________________________________________[思路点拨]1．学生应该认真阅读提示，把握准情景和要求，使表达的内容不走题，本题创设的是骑车去植树的一系列情景。2．根据情境的发展，按顺序安排好材料。本题应该按照活动内容：骑车、路上——到达——植树过程描述——离开前照相——简短感想的顺序完成。3．学生应该注意层次分明，重点突出。本题的表达重点要放在植树的过程上，去的路上和植树后以及感想是次要的；可以按照三个层面写(1)植树路上；(2)植树过程；(3)植树完后和感想。[范文]Green Action in Our Class April 12th is memorable because our class had a meaningful experience on that day.In the morning,we bicycled to the suburbs to plant trees,talking and laughing all the way.Upon arrival,we began to work immediately.Some were digging holes.Some were carrying and planting trees.Others were watering them.After getting the work done,we put up a board reminding people to protect the trees.Before leaving we took some photos to record our green action.Seeing the lines of trees,we all had a sense of achievement.We all think it’s our duty to protect and beautify our environment.考点探究互动探究·能力备考Ⅰ.词汇短语过关1．total adj.总的；全部的；整个的n．总数；合计v．总数为；合计为totally adv.完全地；整个地in total总共；总计(＝totally)a total of总数；总共(修饰名词复数时，谓语动词用复数)the total of...(谓语动词用单数)total up＝add up算出总数total(up)to＝add up to总额为[即学即练1]—What is________________________these books？这些书的全部费用是多少？—It cost me__________________of 500 yuan.___________，it cost me 500 yuan.The cost________________500 yuan.这些书总共花了我500元。the total cost of a total of In total totalled up to 2．anyhow/anyway adv.(1)“无论如何，不管怎样；总之；尽管如此”。在作此意讲时，anyway和anyhow一样，都用做让步状语，一般置于句中(其前常有连词but)或句末。(2)“况且，更何况，再说，至少”。作此意讲时，两者都可用来做状语，对前面的话做补充，给出一个令人信服的理由，此时anyhow常出现在句首或最后的分句之首，而不出现在句末。(3)“粗心地，随意地”，作此意讲时，只能用anyhow。[即学即练2]写出下列句中anyhow的意思。(1)It may rain,but we shall go anyhow.______________(2)Anyhow,you can try,even if there’s not much chance of success.___________________________(3)The work was done all anyhow._________________无论如何至少粗心地拓展：somehow adv.由于某种未知的原因；不知怎么的；以某种方式；用某种方法；从某种角度。如：Somehow he was afraid of her.不知怎的，他怕她。3．signal vi.&vt.发信号n．信号a danger/warning/distress signal危险/警告/遇难信号traffic signals交通信号灯a stop signal停车信号signal(to)sb.to do sth.示意某人做某事signal to sb.向某人示意signal(sb.)that...示意……[即学即练3](1)All I get is__________________whenever I dial his number.我什么时候拨他的电话听到的都是忙音。(2)He__________________for the bill.他示意服务员结帐。(3)She__________________follow her.她示意他跟她走。a busy signal signalled the waiter signalled him to 4．type n．类型，种类，样式v．打字a rare blood type罕见的血型different racial types不同的人种type up打印出来[即学即练4](1)She mixes with____________________people.她和各种类型的人打交道。(2)How fast can you________________？你打字有多快？(3)This letter needs__________________again.这封信需要再打一遍。all types of type to be typed 5．arise vi.(arose,arisen)出现；发生；起身，起立(1)“出现，开始，呈现”，多用抽象名词做主语。(2)表示“起因于，由……产生”，通常用做arise from/put of。(3)表“起身”之意，为正式或旧式用法。[即学即练5](1)I thought it would be easy,but a lot of problems have________________.我本来想事情会很容易，但是出现了许多问题。(2)Accidents_____________________carelessness.事故由粗心大意引起。(3)A heavy mist______________the lake.湖面起了浓雾。(4)He_______________his seat.他从座位上站起来。arisen arise from arose from arose from 6．as a result结果；因此as a result of由于；作为……的结果result in(＝cause)导致；致使result from(＝be caused by)起因于；因……而引起[即学即练6](1)Hard work____________success.努力终归成功。(2)Success_____________hard work.成功来自于努力工作。(3)He was ill.____________________，he didn’t go to school.他生病了。因此，他没去上学。(4)___________________________his illness,he didn’t go to school.由于生病，他没去上学。results in results from As a result As a result of 7．in a way在某种程度上all the way一路上；一直；完全by way of经由；途经by the way顺便说in the way妨碍，挡路in this way以这种方法in no way决不，无论如何都不on the way在途中on one’s way to...在某人去……的途中；即将成为……give way(to)让步，屈服[即学即练7](1)You are quite right__________________.从某一方面来讲，你完全正确。(2)It’s surprising that so many people should go abroad_________________Hong Kong.竟然有这么多的人途经香港去国外，真让人吃惊。(3)__________________can we miss the chance that someone will be sent abroad for further education.我们决不能错过这个被派往国外深造的机会。in a way by way of In no way(4)Our employer will not______________________our demands for higher wages.我们的雇主不会对我们增加工资的要求让步。(5)Don’t stand____________.不要妨碍别人。give way to in the way 8．deal with处理；安排；对付[即学即练8]写出下列deal with的意思。(1)There are too many difficulties for us to deal with.____________(2)He has learnt to deal properly with all kinds of complicated situations._______________(3)Deal with a man as he deals with you.___________(4)This is a book dealing with Asian problems.______________________处理应付对付关于；论及(5)They have learned to deal with various persons.__________比较：deal with,do with(1)deal with意思是“处理，谈论，对付”以及“与……做买卖”，表示处理时，常与连接副词how连用。I don’t know how to deal with him.我不知道如何对付他。(2)do with意思是“对待，处理，利用，与……有关”，表示“对待”时宾语是人，相当于treat；表示“处理，利用”时，常与连接代词what连用。I don’t know how they deal with the problem.＝I don’t know what they do with the problem.我不知道他们如何处理这个问题。与……往来/相处9．watch over看守；监视watch for sth.盼望或等待某事物watch out小心；留神；注意(用于提醒、警示)watch out for sb./sth.警惕或注意某人/物keep(a)watch on监视on the watch for看守着……，监视着……[即学即练9](1)They__________________by three policemen.他们由三个警察看守着。(2)She____________her chance to speak.她等机会发言。(3)____________！There is a car coming.注意！有车来了。(4)_________________the pickpockets！当心有扒手！were watched over watched for Watch out Watch out forⅡ.重点句型详解1．And my memory became so large that even I couldn’t believe it!我的存储量变得如此巨大，甚至连我自己都不能相信！so...that...如此……以致……。that引导结果状语从句。另外，such...that...也引导结果状语从句。其结构形式为：so＋adj./adv.＋adj.＋a/an＋可数名词单数＋many/few＋可数名词复数much/little＋不可数名词that从句such＋a/an＋adj.＋可数名词单数＋adj.＋可数名词复数＋adj.＋不可数名词that从句①She was so excited that she couldn’t go to sleep.她兴奋得睡不着觉。②It was so hot a day that nobody wanted to do anything.(＝It was such a hot day that nobody wanted to do anything.)天气如此热，谁也不想干活。③I made so many mistakes in the composition that the teacher criticized me.我的作文中出了许多错误，老师批评了我。拓展：(1)当so.../such...位于句首时，句子要部分倒装。So small was the mark that I could hardly see it.那个标记非常小，我几乎看不见它。(2)so...that...中的主句和从句的主语是同一个，that从句也可改为as to do形式。The old lady was so kind that she led me to the hospital.＝The old lady was so kind as to lead me to the hospital.这个老太太是那样好心，她把我领到了医院。(3)so that连在一起用，可引导结果状语从句，也可引导目的状语从句。so that引导目的状语从句时，从句中常使用can/could/may/might/will/would/should等情态动词；引导结果状语从句时，从句中一般不用can和may等词，在so that前可以有逗号，意思是“因此；所以”。He hurried up so that he could catch the train.他匆匆赶路为的是赶上火车。(对比：He hurried up so that he caught the train.他匆匆赶路，结果赶上了火车。)[即境活用1](1)______about wild plants that they decided to make a trip to Madagascar for further research.A．So curious the couple was B．So curious were the couple C．How curious the couple were D．The couple was such curious解析：考查so...that...引导结果状语从句，且so...放于句首时，句子部分倒装。答案：B(2)Most children need encouragement in time of failure______they can cheer up again.A．so thatB．in case C．because D．if解析：考查so that引导目的状语从句。答案：A 2．Anyhow,my goal is to provide humans with a life of high quality.无论如何，我的目标是为人类提供高质量的生活。of high quality在句中做定语，属于of＋n.结构。这一结构相当于形容词，在句中可以做表语、定语或宾语补足语。(1)of＋n.结构中的名词是抽象名词时，相当于其名词所对应的形容词的意思，说明被修饰词具有某种特征或属性。常用的名词有：use,importance,help,value,interest,benefit等。这些名词前可用great,no,little,some,any,not much等修饰，以表示不同程度。The camel is of great help to the Arab.(＝The camel is very helpful to the Arab.)骆驼对阿拉伯人有很大帮助。(2)of＋n.结构中的名词表种类、数量、度量等时，表示不同的人或物的共同特征，此时名词前通常有冠词。常用的名词有：size,type,kind,price,height,depth,length,weight,age,shape,colour等。The two are of an age,but are of different height.这两个人年龄相同，但身高不同。(3)of＋n.结构还可以表示主语的根源关系，此时的名词多是表示亲属、血统、种族、国籍以及出处的名词，常用的名词有：family,blood,race,origin等。We are of the same blood.我们是同一血统。(4)of＋n.结构还可以表示人的特点、特性，常用of＋wealth/education/courage/achievement/ability等。Your sister is a girl of wisdom.你妹妹是一位有智慧的女孩。[即境活用2]You will find this map of great______in helping you to get around London.A．price B．cost C．value D．usefulness解析：be of great value＝be very valuable“很有价值”。答案：C易错点拨自我完善·误区备考1.symbol/sign/signal/mark均含“标志，象征，符号”之意。(1)symbol指作象征或表达某种深邃意蕴的特殊事物。(2)sign普通用词，指人们公认的事物的记号，也可指某种情况的征兆。(3)signal指为某一目的而有意发出的信号。(4)mark普通用词，含义广泛。既可指为便于辨认而有意做的标记，又可指自然形成的标记或有别于其他事物的特征。[应用1](1)Red cross is a______for hospital.(2)A red light is usually a_________of danger.(3)Make a______where you don’t understand.(4)Are dark clouds a______of rain?(5)A dove(鸽子)is a______________for peace.ign signal mark sign symble 2.arise/arouse/rise/raise(1)arise是不及物动词，在现代英语中主要用于借喻，指“出现，发生，产生”。(2)arouse是及物动词，指“唤醒，激起”，后常跟抽象名词。(3)rise是不及物动词，使用范围较广，指“升起，上升，增长”，也可指“起立，起床，地位升高”等。(4)raise是及物动词，用在句中，后面需跟宾语。一般指“升起，举起，增加(程度、价格等)；提高(音量)；提出；种植(农作物)；养育；抚育(子女)”。[应用2](1)The river is______after the rain.(2)He______his hand in the hope of being asked.(3)His strange behaviour_________our suspicions.(4)New problems______every day.rising raised aroused arise提示：原形。