课件31张PPT。The Internet and Telecommunications网络与通信REVISION Some words about computerHard diskmonitormousescreenCD-ROMkeyboardLead-inDo you like surfing the Internet
(网上冲浪)?
What can we do on the Internet?search for information
搜信息do online shopping
网上在线购物 chat on the Internet
网上聊天send an e-mail to your friends
play games
www.sohu.com
www. yahoo.com.cn
www.taobao.com
What does www stand for(代表)?It stands for World Wide Web(环球网、万维网).Some websites I often visit:internetFast Reading 2minutesAfter reading, answer the following questions?
1. What is the internet, how did it start?
2. What is the World Wide Web?
3. Who invented it ?
1.What is the internet, and how did it start?
The internet is the biggest
source of information (最大的信息来源)in the
world, and it is accessible (获得)
through a computer. 2. What is the World Wide Web?
It is a computer network (计算机网络)that allows computers to (允许、、做)access(获得) information from millions of websites via the Internet.The World Wide Web was invented in1991 by an English scientist---Tim Berners-Lee.3. Who invented it ?
ParagraphMain ideaParagraph 1 Paragraph 2Paragraph 3Paragraph 4Paragraph 5Paragraph 6a. The present situation(目前状况) of Berners----Lee
b. Berners-Lee invented the World Wide Webc. The definition (定义) of the World Wide Webd. Everyone can use the Internet e. How the Internet started f. The definition of the Internet Match each paragraph with the main idea Introduce the inventor of World Wide Web.
B. Tell us something about the Internet
and World Wide Web.
C. The Internet is widely used all over
the world.What is the passage about?
The passage is aboutBRead the text again and do true-false exercises:1.There are millions of pages of information on the internet.
2. The US army were the first people who used an Internet
system.
3. Universities started using the Internet at the same time as the army.
4. The percentage of websites in English is getting smaller.TTTTFF5. Tim Berners-Lee made it possible for scientists to use the Internet.
6. He has made a lot of money from his invention.
Careful ReadingBoys: think of the advantages of the Internet.
Gils: think of the disadvantages of
the Internet. Every coin has two sides. The Internet also has its advantages (优点)and disadvantages(缺点).Discussion easy to contact
search information
shopping online
study online
watch live matches and other programs
see the doctor …
bad for eyes
lazier and fatter
less chance to get along with others
spend too much time playing computer games and chatting
fail in the exam???Suggestiongo on line properly have a time limit
choose things which are valuable to our study and life
place study, health and safety before other thingsHomework:What do you want to say to your friends who are addicted to (对……上瘾) Cyber bars(网吧)?
Write a short passage about this topic “Keep away from Cyber Bars”…(in about 100 words)
DARPA:
DARPANET:
NSF:
NSFNET:Defense Advanced Research Projects Agency国防部高级研究计划署The network of computers created by a US defense organization, DARPA.It’s short for (US) National Science foundation.国家科学基金会A network started by the NSF, known as the Inter-Network, or “Internet”.Vocabulary & Expressionaccessible adj. 易接近的、可以使用的 can be reached/used
Internet is accessible to all the computer users.
access n. means of entering; entrance.
接近;通路;接近或进入的权利
Access to the resort (度假胜地) is quite easy.
这个度假胜地很容易到达。
Students must have access to a good library.
v. 访问,存取(信息,数据);接近,使用
It is easy to access information from this website.consist of 由…组成,由…构成 be made up of
The club consists of more than 200 members.
consist in 存在于;决定于
The beauty of Venice consists in the style of its ancient buildings.威尼斯之美在于其古建筑的风格。
consist with 与…一致、 相符
他言行不一。
His action does not consist with his words.consistdevelop vt & vi 使发达;发展;使发育
He believes that sports can develop mind and body.
develop the habit of doing something
养成作……的习惯
develop an interest in something
培养对……的兴趣 developed 发达的 developing 发展中的
China is a _________ country while America is a _________ country.developingdeveloped development n.create 创造指“有目的地把原材料制成新产品”; 也指“ 创造出原来不存在或与众不同的事物”
Many people believe that the universe was created by the God.
design 设计指“制作某物之前深思熟虑地构思”
It was he that designed the garden.
invent 发明指“通过想象、研究、劳动, 创造出前所未有的东西”, 尤指“科技上的发明创造”Edison invented the light bulb.Be known as :作为…而出名
George is known as a famous singer.
Be known for 因……而出名
The place is known for its fruit, especially its seedless grapes.
Be known to 被……所熟知
It is known to us all that theory comes from practice.At the moment 此刻
At any moment 在任何时候
For the moment 目前,暂时
For a moment 片刻,一会儿
At the last moment在紧要关头
Go down 下降
(太阳,月亮) 落下 The sun is going down.
价格下跌 Price don’t seem to be going down.
退烧 I’m glad your temperature has gone down.Rise vi. 升起,提高,上涨(不跟宾语)
The sun rises in the east.
Raise vt. 提高,抬起(必须跟宾语)
The student raised his hand to answer the teacher’s question. come up with 赶上;提出,提供
We shall work hard to come up with him.
I hope you can come up with a better plan than this.catch up with 追上, 赶上
keep up with 跟上, 不落后Via prep. by way of /by means of
He sent me a letter via one of my friends.1. _____ by jeep they visited a number of European cities last year.
A. Travelled B. Travelling
C. To travel D. Having travelled
2. Suddenly I noticed a man came ____ into the room.
A. running B. to run C. ran D. runBAExercises3. The group _______ the eight richest
countries in the world.
A. consist by B. consists of
C. is consisted by D. is consisted of
4. —Did you remember to give Mary the money you owned her?
—Yes. I gave it to her _____ I saw her.
A. while B. the moment
C. suddenly D. onceBB5. Since the computer price has _____, why not buy one?
A. brought down B. put down
C. gone down D. taken down
6. —Does he know how to work out the problem?
—Yes, he has _____ a good idea to solve it.
A. caught up with B. kept up with
C. come up with D. put up withCC7. Since the computer price has _____, why not buy one?
A. brought down B. put down
C. gone down D. taken down
8. —Does he know how to work out the problem?
—Yes, he has _____ a good idea to solve it.
A. caught up with B. kept up with
C. come up with D. put up withCC9. He is known _____ everybody in the city _____ a reporter.
A. to; as B. from; after
C. to; like D. by; for
10. As a result of destroying the forests, a large ____ of desert ____ covered the land.
A. number; has B. quantity; has
C. number; have D. quantity; haveBA