Unit 3 Computers 导学案人教必修2精品.docx

1、Unit 3 Computers 导学案人教必修2精品Unit 3 Computers 导学案课前预习导学课标导航功能1.Making decisionsI think/dont think that.I believe that.Ive decided that.Lets make a decision.2ReasoningThe advantage/disadvantage is.I agree/dont agree.because.Give me your reasons.What makes you think so？句型before引导时间状语从句，表示“在之前”as.as.“像一样

2、”as引导的从句so.that.如此以至于语法现在完成时被动语态的结构和用法Over time I have been changed quite a lot.First as a PC(personal computer) and then as a laptop，I have been used in offices and homes since the 1970s.Since the 1970s many new applications have been found for me.写作Argumentative writing：computers effects on people

3、考点intelligence(2011江苏高考，27)somehow(2011江西高考，27)before引导的状语从句(2011四川高考，6)as引导的状语从句(2012山东高考，27/2011全国高考，22)go ahead(2011辽宁高考，35)deal with (2011天津高考，8)现在完成时的被动语态(2011天津高考，3/2011北京高考，21等)主题导读Steve Jobs (February 24，1955October 5，2011) was an American inventor and entrepreneur(企业家)He was cofounder，chair

4、man，and CEO of Apple Inc.In the late 1970s，Jobsalong with other Apple cofoundersdesigned，developed，and marketed one of the first commercially successful lines of personal computers，the Apple series. In 1985，Jobs resigned from Apple and founded NeXT，a computer platform development company specializin

5、g in the higher education and business markets. Apples subsequent (继任者) brought Jobs back to the company he cofounded，and he served as its interim(临时的)CEO from 1997，then becoming permanent(永久的) CEO from 2000 onwards. After resigning as CEO in August 2011，Jobs was elected chairman of Apples board of

6、directors.On October 5，2011，Jobs died in California at age 56，seven years after being diagnosed with pancreatic(胰腺的)cancer. On his death he was widely described as a visionary pioneer and geniusperhaps one of the foremostin the field of business and product design，and a man who had greatly changed t

7、he face of the modern world. His death was widely mourned and considered a loss to the world by people across the globe.诱思探究1What do you think of Steve Jobs as an inventor and a CEO？2Some people think that Steve Jobs has greatly changed the face of the modern world，do you think so？Whats your opinion

8、？答案：The answers are various.基础导练.词汇拓展1_ vt. 计算_ n. 计算器2_ n. 宇宙_ adj. 宇宙的；普遍的；通用的3_ adj. 简单的_ vt. 简化4_ n. (电脑)操作员；接线员_ v. 操作；动手术operation n. 操作；运转；手术5_ adj. 合逻辑的；合情理的_ adj. (反义词)_ adv. 合逻辑地；有条理地；逻辑上6_ n. 工艺；科技；技术_ adj. 科技的7_ n. 革命_ adj. 革命的；n. 革命者8_ n. 智力；聪明；智能_ adj. 智能的；聪明的9_ n. 真实；事实；现实_ adj. 现实的；真

9、实的_ adv. 确实；真正地10_ adj. 私人的；个人的；亲自的_ adv. 就个人而言；亲自11_ adj. 总的；整个的_ adv. 完全地；整个地12_ n. 应用；用途；申请_ v. 申请；运用13_ n. 金融；财经_ adj. 财政的；金融的14_ vt.&vi. 探索；探测；探究_ n. 勘探者；探险家15_ vi. 出现；发生_ (过去式)_(过去分词)16_ vi. 出现；显得；好像_ n. 外观；外貌；出现17_ n. 性格；特点_ adj. 特有的；典型的.短语互译1_ 从时起2_ 结果3_ 在某种程度上4_ 在的帮助下5_ 处理；安排；对付6watch over

10、_7so.that. _8be crazy about _9make up _10after all _.重点句型1I developed very slowly and _ _ nearly two hundred years _ 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。2By the 1940s，I _ _ _ _ _ a room，and I wondered if I would grow _ _.到20世纪40年代时，我已变得像一个房间一样大，

11、我不知道是否还会变得更大。3_ _ _ _，I was made smaller.随着时间的流逝，我被做得更小了。4_ _ my memory has developed _ _ _，like an elephant，I never forget anything I have been told！随着时间的推移，我的记忆能力发展得如此之快，就像一头大象一样，我从来不会忘记告诉我的任何事情！5And my memory became _ large _ even I couldnt believe it！我的存储量变得如此之大，连我自己都不能相信！答案：.1.calculate；calcula

12、tor2.universe；universal3.simple；simplify4.operator；operate5.logical；illogical；logically6.technology；technological7.revolution；revolutionary8.intelligence；intelligent9.reality；real；really10.personal；personally11.total；totally12application；apply13.finance；financial14.explore；explorer15.arise；arose；ari

13、sen16.appear；appearance17.character；characteristic.1.from.on2.as a result3.in a way4.with the help of5.deal with6.看守；监视7.如此以至于8.对着迷(热衷)9.编造；弥补；组成10.毕竟；终究.1.it took；before2had grown as large as；any larger3As time went by4Over time；so much that5so；that自我感悟在预习中还有哪些问题需要你在听课时加以关注？请在下列表格中做个备忘吧！课堂合作探究Part

14、Warming Up，Pre-reading，Reading & Comprehending文本感知阅读WHO AM I？，完成下列小题1Which of the following statements is right？AThe first form of the computer appeared as a calculating machine in France in 1642.BThe analytical machine was invented by Turing in 1822.CComputers have been used as a means of communica

15、tion around the world since the 1960s.DComputers havent been put into space rockets and used to explore the Moon and Mars.2According to the description(描述)in the text computers will be _ in the future.Abigger and bigger，faster and fasterBsmaller and smaller but fasterCmore and more advancedDalmost t

16、he same as those today3What is the content of the passage of “WHO AM I？”AComputers have a long history.BComputers are becoming more and more advanced now.CComputers are meant to help human beings.DAll of the above.答案：1A2.C3.D导学互动1In pairs discuss what they have in common.(P17，Warming Up)两人一组讨论它们有什么共

17、同之处。have (sth.) in common有共同之处They are brothers，but they have nothing in common.他们虽然是兄弟，但毫无共同之处。In general，their methods have a lot in common.总的来说，他们的方法有很多共同之处。联想拓展(1) (2) In common with many other girls，she likes new dresses.和许多其他女孩一样，她也喜欢新衣服。The two neighbours own the parking lot in common.这两个邻居共同

18、拥有这个停车场。即学即练(1)完成句子这两幅画有什么共同之处？What do the two paintings _ _ _？他和很多男孩一样喜欢足球。_ _ _ many other boys，he likes football.(2)单项填空Roses are quite _ flowers in England gardens.Aordinary Bcommon Cusual DgeneralWe have a lot _ and have a lot to talk about.Ain brief Bin common Cin detail Din fact2calculating m

19、achine(P17，Pre-reading)计算机calculate vt. 计算；预测The teacher calculated the average marks of the class.老师算出了全班的平均分。It is calculated that the work will be finished in two days.预计两天后完成这项工作。联想拓展calculator n. 计算器calculation n. 计算；推测词汇辨析calculate“计算，核算”，一般要有较复杂的过程，如加、减、乘、除等运算，或数学上精密的计算等count“计算，数”，指逐个数过而得出总数

20、即学即练单项填空The loss has not yet been _ accurately，but it is believed to be well beyond a hundred million dollars.Acalculated Bconsidered Ccompleted Dcontrolled3Although I was young I could simplify difficult sums.(P18，Reading，L23)尽管我很年轻，但我能简化一些复杂的数额。1)simplify vt. 简化；使简易Youd better simplify the process

21、 of the math problem.你最好简化一下这道数学题的步骤。Try to simplify your explanation for the children.设法使你的解释简易一些，让孩子们能听懂。词汇拓展simple adj. 简单的；简易的；单纯的；朴素的simplified adj. 简化的simply adv. 简单地；仅仅；完全；简直simplification n. 简化Rich as he is，he still lives a simple life.尽管他很富有，但他仍然过着俭朴的生活。What they need is simply money，money

22、and money.他们所需的仅仅是钱而已。即学即练(1)用simple的正确形式填空Please introduce it to us _.It is so complicated that I cant understand it；please _ it.Only after it was _，we found it easier to understand.(2)同义句改写The article is too difficult，so youd better make it easy for students to read.The article is too difficult，so

23、 youd better _ it for students to read.(3)单项填空Im surprised that you should have been fooled by such a(n) _ trick.Aordinary Bdifficult Csmart DsimpleRunning a company is not _ a matter of hiring people；they also need to be trained.Asimply Bpartly Cseriously Dequally2)sum n总数，总计(与of连用)；金额；款项The sum of

24、 three and five is eight.3与5的总和是8。Hosting the 2010 Shanghai Expo cost China a large sum of money.中国斥巨资承办了2010年上海世博会。短语链接(1)in sum 总之；简而言之It was，in sum，a complete failure.总之，这是一次彻底的失败。(2)sum up 概括；概述The story may be summed up in one sentence.该故事可用一句话来概述。(3)summary n摘要；概要adj.概括的；总结的in summary 概括地说；总的说

25、来Can you give me a quick summary of your research？Can you tell me about your research in summary？你能简要概括一下你的研究工作吗？即学即练单项填空She was left _of money by her parents.Aa large sum Ba large number Ca plenty Dgreat deal His speech _ the present situation of economy.Amade up Bsummed up Ctook up Dset up4I devel

26、oped very slowly and it took nearly two hundred years before I was built as an analytical machine by Charles Babbage.(P18，Reading，L36)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。It will be/is/was/takes时间段before.“要过多久/过了多久才”。It was two years before he finished the task.他花了2年的时间才完成了这项任务。It took him half an hou

27、r before he came to life.半个小时后他才苏醒过来。It will be a week before we meet again.一周后我们还会再次见面的。联想拓展before的不同用法(1)还没来得及，就He left angrily before I could explain to him.我还没来得及向他解释，他就生气地走了。(2)趁着Youd better write them down before you forget.趁着还没忘记，赶紧把它们写下来。(3)一就；刚刚就He had hardly gone to bed before the door bel

28、l rang.他刚刚睡下，门铃就响了。即学即练单项填空Why didnt you ask the teacher the question？She had left the office _ I had time to.Aas Btill Cafter DbeforeJohn thinks it wont be long _ he is ready for his new job.Awhen Bafter Cbefore DsinceIm sorry youve been waiting so long，but itll still be some time _ Tom gets back.Abefore Bsince Ctill Dafter5In 1936 my real father，Alan Turing，wrote a book about how I could be made to work as a “universal machine” to solve any difficult mathematical problem.(P18，Reading，L1113)在1936年，我真正的父亲，艾伦图灵写了一本书，讲述了怎样能使我成为一台“通用机器”来解决任何数学难题。solve vt. 解答；解决；破解So far nobody in our class can s