1、Unit 3Computers你肯定经常看到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！If 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 stand for? What does it all mean?Well, in general, WWW stand for “World Wide Web”. Most people confuse the Inte
2、rnet with the World Wide Web. However, there is a difference. The Internet is made up of thousands of computers that are connected worldwide. WWW or World Wide Web, is what your computer uses to check out the Internet. For example, your computer uses browsers, such as Internet Explorer or Netscape (
3、网景浏览器) 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. A modem is like a telephone, which allows your computer to dial and connect to the Internet
4、.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 on the Internet.Third, you must have an Internet Service Provider. This is known as an ISP (网络服务提供商)The most commonly used ISPs are c
5、ompanies like AOL, Earthlink (地球连线), Compuserve (计算机服务). 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 pay. Usually, this will cost you $19.95 a month.1confuse vt.
6、使混乱；使困惑2connect vt. 连接；联合；关联3browser n. (电脑)浏览器4surf vt. 在上冲浪5modem n. 调制解调器6graphics n. 绘画；图像1What difference is there between the Internet and WWW?_2What do you need if you surf the World Wide Web?_【答案】1.The Internet is made up of thousands of computers that are connected worldwide；WWW is what you
7、r computer uses to check out the Internet.2You need to have a computer with a modem and a browser.Besides，you need to have an Internet Service Provider.Section Warming Up & ReadingPreparing根据提示写出下列单词1_vt.计算2_adj. 普遍的；通用的；宇宙的3_vt. 简化4_n. 工艺；科技；技术5_n. 革命6_adj. 人造的；假的7_n. 智力；聪明；智能8_vt. 解决；解答9_n. 真实；事实；
8、现实10_adj. 私人的；个人的；亲自的11_n. 应用；用途；申请12_n. 金融；财经13_vt.&vi. 探索；探测；探究14_adv. 无论如何；即使如此【答案】1.calculate2.universal3.simplify4technology5.revolution6.artificial7intelligence8.solve9.reality10.personal11.application12.finance13.explore14anyhow看单词学构词ence是名词后缀，一般用于说明过程、状态或性质。常见的有：existence存在；reference提及；diffe
9、rence分歧。根据提示补全下列短语1work_想出；计算出2compare._. 把与比较3_a result 结果4have._common 有共同点；共享5go_ 经过；逝去6share sth._sb. 与某人分享某物7from._ 从时起8provide sb._sth. 向某人提供某物【答案】1.out2.with3.as4.in5.by 6with7.on8.with根据提示补全下列教材原句1I developed very slowly and _ I was built as an analytical machine by Charles Babbage.我发育缓慢，差不多
10、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 smaller.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我的任何事情！【答案】1.it took nearly two hundred years before2As3.so；that阅读P18教材原文，选择最佳选项1
11、What does the author mean by“a technological revolution”in the development of computers?AA calculating machine in 1642.BAn analytical machine in 1842.CA universal machine in 1936.DA network in the early 1960s.2How long did it take before the computer was built as an analytical machine?A500 years.B30
12、0 years.C100 years.D200 years.3Why did the computer totally change its shape?ABecause the computer could do many things.BBecause the computer could simplify sums.CBecause its memory improved.DBecause the computer never forgot anything.4When were the computers connected to one another?AIn the early 1
13、960s.BIn the 1970s.CIn the 1940s.DIn the year of 1936.5According to the last paragraph，which were NOT mentioned in the use of the computer?AMobile phones.BRockets.CBikes.DRobots.6What can we learn from the text?AThe computer will take the place of human beings.BThe computer will be smarter than huma
14、n beings.CThe computer will be a disaster for human beings.DThe computer will be used in many fields in life.【答案】16BDCACD阅读P18的教材课文，在空白处填入适当的内容(1个单词)或括号内单词的正确形式The computer is widely used in our daily life.The computer is a machine that 1._(design) to help people do many things. When it first came i
15、nto 2._(be)，it was just a calculating machine，and later it was built as an analytical machine that could be “think”3._(logic) and produce an answer 4._(fast) than any other person. Still later, the computer could be made to work as a “universal machine” to solve any difficult mathematical problems.
16、There were 5._(time) when its size was totally changed. It became smaller and smaller but it got cleverer and cleverer. In the early 1960s computers were connected by network and brought into common peoples homes 6._(deal) with information and help communication 7._people around the world. It could
17、share information with others and they could talk each other. The Internet has become 8._important part in our life and we can do many things with the help of the Internet. The computer is used to connect people 9._arent close enough to speak to each other.It has been serving the human race since 10._(it) birth.【答案】1.was designed 2.being3.logically4.faster5.times6.to deal7.between8.an9.who/that10.its