1、Unit 3ComputersComputers第一学时Reading and ComprehensionWorld 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，in general，WWW stands for“World Wide Web”Most people confuse(使混乱；使困惑) t
2、he 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 Internet.For example，your computer uses browsers(电脑浏览器)，such as Internet Explor
3、er or Netscape to let you see and hear all the cool pictures， information，music and sounds on the Internet.Task 1仔细阅读课文“Who Am I？”根据课文内容选出最佳答案。 1When did the computer come into being?A1640. B1642.C1822. D1936.答案：B2Who really invented the computer?ACharles Babbage. BBill Gates.CAlan Turing. DThomas E
4、dison.答案：C3. Which of the following statements is TRUE?ACharles Babbage built an analytical machine in 1642.BAlan Turing wrote a book about how the computer could be made to work as a “universal machine” to solve any difficult mathematical problem in 1936.CThe computers were first connected by a net
5、work in the late 1960s.DSince the 1960s the computer has been used to help with medical operations.答案：B4What can we infer from the text?AThe computer can take the place of humans.BThe smaller a computer is，the faster it calculates.CComputers can solve all the problems of human beings.DPeople can ben
6、efit more from computers in the future.答案：D5. What is the main idea of the text?AThe advantages of the computer.BThe latest development of the computer.CThe importance of the computer.DThe history of the computer.答案：DTask 2仔细阅读课文“Who Am I？”完成下列表格。In 1642The computer began as a 1.calculating machine
7、in France.About 200 years laterThe computer was built as an 2.analytical machine.The computer was programmed by an operator using 3.cards_with_holes.In 1936A book about how to make a computer work as a “4.universal_machine ” was written by Alan Turing.From then on，the computer grew rapidly.From the
8、1940s to the 1970sThe computer was made smaller, and its 5.memory became better.The computer could memorize all the things it was told.During that time，the first PC and the first 6.laptop were made.In7.the_early_1960s Computers were connected by a work，and through 9.the_World_Wide_Web they could sha
9、re knowledge and information with others.Since the 1970sMany new 10.applications have been found for computers.Task 3根据课文“Who Am I？”在下面空格中填上恰当的词语，使文章连贯完整。No one could recognize me 1.after I got my new transistors in 2.the 1960s.There were times when my size was 3.totally (total) changed.I became sma
10、ller and thinner but I got cleverer and cleverer, quicker and quicker.And my memory became so large 4.that I couldnt believe it! But I was always so lonely 5.standign (stand) there by myself.They gave me a family 6.connected (connect) by a network in the early 1960s.I could share information with 7.
11、others and we could talk to each other.At about the same time we learned to talk to humans using BASIC.I was brought into peoples homes in the 1970s.Since then，my family and I 8.have_been_used (use) by billions of people to deal with information and communicate with each other around the world.I lov
12、e being used to connect people 9.who arent close enough to speak to each other.I have truly been built to serve the human race 10.since my birth. 一、请将课文“Who Am I？”翻译成汉语，然后对照助读译文自主勘误助读译文：我是谁？ 经过一段时间我已经被改变了很多。1642年我在法国诞生时是一台计算机器。尽管当时我还年轻，但是我能简化一些复杂的数学题。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。在操作员用穿卡孔为我设计程序
13、后，我能够进行逻辑“思考”，并且能够比任何人更快地算出答案。那时这被当作是一次技术革命，也是我“人工智能”的开始。在1936年，我真正的父亲艾伦图灵写了一本书，讲述了怎样使我成为一台“通用机器”来解决任何数学难题。从那时起，我在体积和脑容量方面迅速成长。到20世纪40年代，我已经长得像一间屋子那么大，我不知道是否还会长得更大。但是，这个现实也使得我的设计者很担心。随着时间的推移，我被弄得越来越小。自20世纪70年代以来，我一直被用在办公室和家庭里，先是用作个人电脑，后来又做成便携式。这些变化只有随着我的存储能力的不断提高才能成为可能。最初是被存储到电子管中，之后是晶体管上，后来是非常小的芯片上
14、。因此，我已经完全改变了我的形状。随着我年龄越来越大，我也变得越来越小。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！我的存储容量变得如此巨大，连我自己都不能相信！但是我总是孤孤单单地站在那里，直到20世纪60年代初，人们才给了我一个用网络联成的家庭。我能够通过万维网和其他人分享我的知识。从20世纪70年代起，我又被开发出了很多新的用途。我在通信、金融和商业领域变得非常重要。我还被放在机器人里面，被用来制作移动手机，并且用来帮助做医疗手术。我还被放置在航空火箭里去探测月球和火星。不管怎样，我的目标是给人类提供高质量的生活。现在我充满了幸福感，因为我
15、是人类忠实的朋友并时时给他们提供帮助。二、课文段落精选背诵(请注意名词的使用)Who Am IOver time I have been changed quite a lot.I began as a calculating_machine in_France_in 1642.Although I was young I could simplify difficult_sumsI developed very slowly and it took nearly two hundred years before I was built as an analytical machine by Charles Babbage.After I was programmed by an_operator who used cards with_holes,_I could “think” logically and produce an_answer quicker than any_personAt that time it was considered a technological_revolution and the start of my “artificial intelligence”