1、2014-2015学年高中英语浙江同步教案：Unit 3 Computer第1课时（人教新课标必修2） Unit 3Computers【美文阅读】你肯定经常接触WWW这三个字母，它代表什么，是什么意思，你了解吗？下面就让我们一起来看看吧！World Wide WebIf you watch TV, visit the mall, or do anything at all, youll have chances to see the three famous letters, WWW！So what does it all mean? What does it stand for?Well,
2、in general, WWW stands for“World Wide Web”Most people confuse(使混乱；使困惑) the Internet with the World Wide Web.However, there is a difference.The Internet is made up of thousands of computers that are connected(连接；联合；关联)worldwide.WWW，or World Wide Web, is what your computer uses to check out the Intern
3、et.For example, your computer uses browsers(电脑浏览器), such as Internet Explorer or Netscape to let you see and hear all the cool pictures, information, music and sounds on the Internet.There are three things you need to surf the World Wide Web.First, you must have a computer that has a modem(调制解调器)A m
4、odem is like a telephone, which allows your computer to dial and connect to the Internet.Second，your computer must have a browser! An example of a browser would be Internet Explorer or Netscape.The browser allows you to see the information and graphics(绘画；图像)on the Internet.Third，you must have an In
5、ternet Service Provider.This is known as an ISP.The most commonly used ISP are companies like AOL，Earthlink，Compuserve.In order to connect to the Internet，you have to pay for the service.Just like if you have cable TV，your parents have to pay for it.In order to connect to the Internet you have to pa
6、y.Unusually，this will cost you $19.95 a month.【诱思导学】1What is WWW? 2What things do you need to surf the WWW? 【答案】1.WWW stands for“World Wide Web”It is what your computer uses to check out the Internet.2A computer that has a modem；a browser；and an Internet Service Provider.Period Previewing(教师用书独具)教学目
7、标本课时主要是通过学生对学案所给出的内容的学习，了解本课文中所出现的词汇，初步了解课文以及相关的背景知识，对下一堂课对课文的全面理解起到一个铺垫作用。教学地位本文属于科普类说明文，内容较为抽象，文章中也不乏一些专业术语，对于培养学生的阅读技能很有帮助。(教师用书独具)新课导入建议通过展示猜测图片引出话题，激发学生学习计算机的兴趣。教学流程设计学生再次仔细阅读课文，(课本第18页)进行深度理解，并完成“课文缩写”(见学案第31页)。老师布置作业，让学生看课本第18页并完成课本第19页1、2题，预习学案Period (见学案第32页)。.篇章结构阅读P18的Reading部分，完成下面表格，每空不
8、超过3个词In 1642The computer began as a(n)1. in France.About 200 years laterThe computer was built as a(n)2. The computer was programmed by an operator using 3. In 1936A book about how to make a computer to work as a(n)4.“ ”was written by Alan Turing.From then on，the computer grew rapidly.From the 1940s
9、 to the 1970sThe computer was made smaller，and its 5. became larger.The computer could memorize 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 1970sComputers have been used 10. 【答案】1.calcula
10、ting machine2.analytical machine3.cards with holes4.universal machine5.memory6.laptop7.the early 1960swork9.share knowledge10.in many ways.语篇理解阅读P18的Reading部分，从每题所给的3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“universa
11、l machine”Chow to build an analytical machine2Why did the computer totally change its shape?ABecause the computer could do many things.BBecause the computer could simplify sums.CBecause its memory improved.3How can you understand the underlined word?Since the 1970s many new applications have been fo
12、und for me.Aa formal request for sth.Bthe practical use of sth.Can act of spreading sth.4Whats the main idea of the text?AThe functional change of the computer.BThe computer becomes popular around the world.CThe history of the computer.5From the passage，“I” refers to Aa machine which is simpleminded
13、Ba“universal machine”which can solve any mathematical problemCa person who built an analytical machine【答案】15BCBCB.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 began
14、only as a 2. machine in 1642.In 1822 the 3. machine was made by Charles Babbage.It 4. instructions from 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，the single computer was 6. with each other.The
15、 information could be 7. Since then computers have been used to 8. information by billions of people and 9. with each other around the world by the 10. 【答案】1.intelligence2.calculating3.analytical4followed5.going by6.connected7.shared8deal withmunicate10.Internet.词义搭配1simplifyAanyway2realityB what ac
16、tually happens or is true3total Cto travel around an area to find out more about it4applicationD to work out the answer to a problem5goal Eto make sth.easier to do or understand6solve Fsomething that you hope to achieve7explore Gthe practical use of sth.，especially a theory，discovery，etc.8anyhow Hth
17、e final number of things or people etc.when everything has been counted【答案】18EBHGFDCA.短语填空用下面短语的适当形式填空from then on；as a result；so.that.；in common；according to；go by；as well as；be filled with1Although they are twins，they dont seem to have much 2We were separated after the film，and I never saw her aga
18、in.3He was angry he left the room without saying a word.4As time ，the little girl is getting prettier and prettier.5I was caught in the rain on my way home； ，I had a bad cold.【答案】1.in common2.from then on3.so；that4.went by5.as a result.句型背诵1I developed very slowly and it took nearly two hundred year
19、s 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(Charles Babbage)才把我制成了一台分析机。2As time went by，I was made smaller.随着时间的推移，我被做得更小了。3Over time my memory has developed so much that，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，从来不会忘记告诉我的任何事情！