高中英语人教版必修2Unit 3 Computers教学设计.docx

1、高中英语人教版必修2Unit 3 Computers教学设计Book 2 Unit 3 Computers Period 1 Warming up and Reading 导学目标1. 初步学习本课时的词汇和短语 operator, simplify, logical, personal, total, from.on , as a result 等2. 了解学习有关计算机的背景知识及发展历史3. 通过阅读习题达到把握课文信息，提高阅读水平自主学习I. 重点单词 1._n. 操作员；接线员 _ v. 操作；经营_n.操作；经营 2._vt. 简化 _adj.简单的 3._adj. 合逻辑的；合

2、情理的_adv.逻辑上；合逻辑地 4._n.智力；聪明；智能_adj.智能的；聪明的 5._adj.&n.总的；总数；合计_adv.完全地；整个地 6._adj.私人的；个人的_adv.就个人而言；亲自_n.个人；自己 7._n.应用；用途；申请_v.应用；申请_n.申请人；求职者 8._n.幸福；快乐 _ adj.幸福的；快乐的 9._v.探索；探测；探究_n.探索_n.探险家10._n.真实；事实；现实_adj.真实的；真的II. 重点短语A. 短语互译1 _ on 从时起 2. as a _ 结果3. so._. 如此以致于 4. human _ 人类5._way 在某种程度上 6. _

3、 the help of 在的帮助下7. _ deal with 8_ watch overB用上面词组的适当形式填空9Because of the pilots strike，_, all flights have had to be cancelled.10_computers，youll find it easy to share information.11_，you are right her English has improved a lot.12_(从现在起)， we will work together to achieve our goal.13He has _ many

4、complicated situations successfully so far.14Its her duty to _ these old men.15. The boy was _ young _he couldnt go to school. 合作探究文本感知( ) Whats the main idea of the text? AThe functional change of the computer.BThe computer becomes popular around the world.CThe history of the computer.语篇理解 . 阅读P18的

5、Reading部分，从每题所给的4个选项中选择最佳答案1In 1936，Alan Turing wrote a book about _. ( )Ahow to simplify difficult sumsBhow the computer could be made to work as a “universal machine”Chow to build an analytical machineD. how to use a computer 2Why did the computer totally change its shape? ( )ABecause the computer

6、 could do many things.BBecause the computer could simplify sums.CBecause its memory improved.D. Because theres no more room for it.3How can you understand the underlined word? ( )Since the 1970s many new applications have been found for me.AA formal request for sth. BThe practical use of sth.CAn act

7、 of spreading sth. D. Some useful tools4From the passage，“I” refers to _. ( )A. a machine which is simplemindedB. a “universal machine” which can solve any mathematical problemC. a person who built an analytical machineD. a famous writer 5. What can you infer from the text? （ ） A. The computer has a

8、rtificial intelligence B. The computer changes a lot over the years C. The computer was not connected by a networkD. Now the computer can only be used to deal with information.阅读P18的Reading部分，完成下面表格，每空不超过3个词In 1642The computer began as a(n)1._ in France.About 200 years laterThe computer was built as

9、 a (n)2._.The computer was programmed by an operator using 3._.In 1936A book about how to make a computer work as a (n)4.“_”was written by Alan Turing.From then on，the computer grew rapidly.From the 1940s to the 1970sThe computer was made smaller，and its 5_ became larger. The computer could memorize

10、 all the things.During that time，the first PC and the first 6._ were made.In 7_Computers were connected by a 8._.Through the network，people could 9._Since the 1970sMany new 10._have been used . 佳句背诵1I developed very slowly and it took nearly two hundred years _ I was built as an analytical machine b

11、y 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。2_ time went by，I was made _. 随着时间的推移，我被做得更小了。3Over time my memory has developed _ much _，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！4. Since _ many new applications have been found for me.(

12、P18)自从20世纪70年代以来，我有了很多新的用途。5. I _ space rockets and sent to explore the Moon and Mars.(P18)我还被放置在航空火箭里去探测月球和火星。达标检测 课文缩写Its known to us all that computer is one of the most important inventions in the 20th century.Though its widely used in our daily life，the computer didnt have artificial 1._.It beg

13、an only as a 2._ machine in 1642.In 1822 the 3._ machine was made by Charles Babbage. It was 4._ by an operator who used cards with holes.In the 1960s computers had new transistors. With the time 5._ the computer has been made smaller and smaller，quicker and quicker. Later，in the early 1960s,the sin

14、gle computer was 6._ with each other by a network. The information could be 7._with others through the World Wide Web. Since the1970s many new 8._ have been found and the goal is to 9._humans with a life of high quality. It is a 10._ friend and helper of the human race.Book 2 Unit 3 Computers Period

15、 2 Language points in Warming up and Reading (I) 导学目标1. 熟记学案中所列出的单词和短语: have.in common, from .on, as, as a result, explore2. 通过对这些词汇的理解能够更深层次地理解课文，并能够运用这些词造句自主学习1have.in common与有共同点；与共有品味典例：In pairs discuss what they have in common. (P17)结对讨论它们有什么共同之处。She finds Japanese has something in common with

16、Chinese.她发现日语跟汉语有一些共同之处。归纳拓展：have something/nothing/a lot/much/little in common(with.)(与)有/无/很多/许多/几乎无共同之处in common with. 和一样 common sense 常识In common with many young people, he prefers pop songs.和许多年轻人一样，他喜欢流行歌曲。To my surprise，I found I had a lot in common with this stranger.令我吃惊的是，我发现自己和这个陌生人有许多共同

17、点。The two cultures have nothing in common. 这两种文化没有相同之处。易混辨析： common/ordinary/usual/normalcommon 指“共有的，公共的；共同的；常见的”。反义词为rare。作“普通的”讲时可与ordinary换用。如“普通人”也可以说成common people。ordinary 意为“普通的，平淡无奇的”，指没有什么特别的地方。usual 意为“平常的，通常的，一向的”，含惯例之意。normal 意为“正常的”。He is in ordinary clothes. 他穿着平常的衣服。We meet every day

18、 at the usual place. 我们每天在往常那个地方见面。小试牛刀： I suddenly felt we _(有很多共同点) _(和大部分年轻人一样)，he likes to listen to rock and roll.Harry visited the bookstore every week. He became such a customer that the bookseller gave him some books as presents. A. common B. normal C. usual D. ordinary2from.on从时起品味典例：From t

19、hen on，I grew rapidly both in size and in brainpower.(P18)从那时起，我在体积和智能方面迅速成长。From now on，we should pay more attention to protecting the environment.从现在起，我们应该更加注意保护环境。She never spoke to him again from that day on.从那天起，她再没和他说过话。小试牛刀：完成句子从那时起，他决定努力学习。He decided to study hard _.从今以后你过马路时要更加小心。Please be

20、more careful when you cross the street _.3.As time went by，I was made smaller.(P18)随着时间的推移，我被做得更小了。【句子分析】句中as为连词，意为“随着”，引导时间状语从句。As time goes on/With time going on，its getting warmer and warmer.随着时间的推移，天气变得越来越暖和了。As housing price is going up fast，ordinary people find it harder to afford one.With hou

21、sing price going up fast，ordinary people find it harder to afford one.随着房价的迅速攀升，普通人发现支付一套房子越来越难了。【提示】as与with均可表示“随着”，但词性不同。as是连词，引导时间状语从句；with是介词，后接名词/代词分词构成with的复合结构。【拓展】 as用作从属连词，表示“既然，因为”，引导原因状语从句。 as用作从属连词，表示“虽然”，引导让步状语从句，只用于倒装语序，即把作表语的形容词、名词或作状语的副词以及动词原形置于句首。 as用作关系代词，引导定语从句，可放于句首、句中或句末。As were

22、 both tired，lets have a good rest . 我们都累了，让我们好好休息吧。Try as she might，Sue couldnt get the door open. 无论苏怎样努力，她就是打不开门。小试牛刀1：完成句子 _，he has changed a lot. 随着时间的流逝，他已经改变了许多。 尽管已经很疲惫了，学生们仍继续练习。Tired _，the students went on practicing.小试牛刀2： 阅读下列句子,说出go by的意思。(1) A car went by (us) at full speed (2) As time

23、goes by, he loves his mother more.(3) Dont let the chance go by (4) He is a man who always goes by the rules.4. as a result结果品味典例：As a result I totally changed my shape. (P18) 结果我的形状完全改变了。He didnt work hard；as a result he failed the exam.他学习不努力，结果考试不及格。易错辨析as a result表示“因此，结果”，单独使用，作连接性状语，起承上启下的作用。a

24、s a result of表示“由于的原因，作为的结果，”后接名词或代词，在句中常用来引导原因状语。【联想】result from 由于，起于 ；result in=lead to 导致，造成的结果 This illness will result in total blindness if left untreated. 这种病如果不治，会导致完全失明。Success results from hard work. 成功来自于艰辛工作。He stayed up too late last night；as a result，he didnt get up on time today.他昨晚熬

25、夜了，结果今天没有按时起床。=He didnt get up on time today as a result of staying up too late last night.小试牛刀： 用as a result和as a result of填空 _exercise，he has built up his body. 由于锻炼，他已身强体壮。由于条件太差，工人们离开了。The conditions are poor；_，the workers left. The workers left _ the poor conditions.5. explore vt / vi探索；探究；探测；考

26、察；探险品味典例：I have even been put into space rockets and sent to explore the Moon and Mars. (P18)我还被放置在航空火箭里去探测月球和火星。Some day，I will go to explore the Mars.总有一天，我要去探索火星。The scientists are exploring all possible ways to improve food production.科学家们正在探究所有可能提高食品产量的方法。归纳拓展：exploration nC，U探索 explorer n探险者Th

27、e success of the exploration made the explorer excited.探索的成功让探险者激动不已。小试牛刀： 根据语境选词填空(explore/exploration/explorer)As an _，he likes _ the world unknown to people，and the _ always brings him happiness and excitement.达标检测1. Dont relate me to him. We_.(根本不同)2. 由于大雾，该航班误点了。(result)The flight was delayed _ the heavy fog.3. 从现在开始你可以独立了。, _ you can work _.4. 无论他怎么能力，他都做不出这道题。(as) _, he cou