Unit 4 Our world. Topc 3 The Internet makes the world smaller. Section A课件(共32张PPT）+内嵌音视频

(共32张PPT)
Unit 4 Our World
Section A
Topic 3 The Internet makes the world smaller.
Learning Objects
What will we do today
Learn some new words and useful expressions.
Learn a new important structure:
Subject + Vt. + Object + Object complement
Know something about the Internet.
Talk about what we can do online.
Free talk
What do you often do on the Internet
Look and learn
Look at the pictures and learn some words and useful expressions.
The Internet is more and more important to us.
Nowadays, we can do many things on the Internet.
For example, we can search for information.
Look and learn
Look at the pictures and learn some words and useful expressions.
As for me, I often read e-books on the Internet. There are so many books in the online library that I can enjoy reading a lot in my free time. Why do I like reading online Because I can read books anytime and anywhere!
Look and learn
Look at the pictures and learn some words and useful expressions.
I also like to do some shopping online.
Do you know why
Because I think things are cheaper than those in a supermarket, and I needn’t spend much time hanging on the street.
Look and learn
Look at the pictures and learn some words and useful expressions.
What’s more, I can chat with my friends face to face when I am free.
Sometimes I learn English as a second language online.
In a word, the Internet is really important to me.
Listen and number
Listen to the passage and number the pictures.
find new friends
buy a bike
read a book
study English
buy a gift
learn to cook
1
2
3
4
5
6
Pair work
Work in pairs. Ask and answer based on the information in 3a.
You may do it this way:
A: What can people do through the Internet
B: Well, they can find some information online.
Listen and choose
Listen to 1a and choose the best answers.
1. What is Kangkang doing
A. Shopping B. Finding information C. Chatting
2. What makes computers talk with each other
A. English B. Chinese C. A special language
3. When was the Internet made into use
A. In the 1960s B. In the 1990s C. In the 1980s
Listen and fill
Listen again and complete the passage.
Kangkang and Maria are talking about the Internet. We use the Internet to _______ information, _____ emails, listen to music and so on. The Internet is great and makes the world _________. It works with a special __________ . Scientists started __________ the Internet in the 1960s and _________________ in the 1990s. The Internet will become ____________________________
to us.
find
send
smaller
language
to study
made it into use
more and more important
Listen and follow
Listen to 1a and repeat the conversation.
Maria: What are you doing, Kangkang
Kangkang: I’m doing some shopping on the Internet. It’s a little cheaper.
Maria: What else can you do online
Kangkang: I can find information, send e-mails, listen to music, watch movies and so on. I can also chat with my grandmother face to face.
Maria: That’s great! the Internet makes the word smaller. How does it work
Kangkang: Mm, let me find out the information online.
(Five minutes later)
Kangkang: A special language makes computers talk with each other.
Maria: When did it come into being
Kangkang: Scientists started to study the Internet in the 1960s and made it into use in the 1990s.
Maria: I’m sure /the Internet will become more and more important to us.
Watch and understand
Key points
The Internet makes the world smaller.
主语
谓语
宾语
宾语补足语
E.g.: 这部电影使我们很开心。
这个故事使我们哭了。
我们应该保持教室干净。
宾语补足语: 放在宾语之后，用于补充说明宾语做某事或宾语怎么样。
The film made us very happy.
This story made us cry.
We should keep our classroom clean.
Look and say
Look at the pictures and follow the example to make up sentences.
make/smaller
help/find information
A: The Internet makes the world smaller.
B: It also helps us to find information much faster.
Look and say
Look at the pictures and follow the example to make up sentences.
make/laugh
make/headmaster
The man makes the girl laugh.
They made the man headmaster.
Look and say
Look at the pictures and follow the example to make up sentences.
not let/watch TV
Mother doesn’t let the boy watch TV.
let sb. do sth: 让某人做某事
keep/clean
She keeps the room clean.
Look and say
Look at the pictures and follow the example to make up sentences.
see/play computer games
The man saw the boy playing computer games.
see sb. doing sth.
看见某人正在做某事
ask/close the windows
The teacher asks his students to close the window.
Read 1a and act
Read 1a and act it out with the help of the following words and phrases.
Maria: ... , Kangkang
Kang: shopping, cheaper
Maria: What else …
Kang: find, send, listen, watch, and so on, also chat, face to face
Maria: great, smaller, work
Kang: find out
Kang: A special language …
Maria: come into being
Kang: started to study, made it into use
Maria: sure, more and more important
Group work
Make an interview in your groups. Then make a report about the Internet.
Interviewer(记者): What can you do on the Internet
S1: Well, I can find some information online.
Interviewer(记者) : Is the Internet always good for us
S2:No, it isn’t.
Interviewer(记者) : What do you think of the Internet
S3:I think it makes our life nicer, easier…….
Group work
Make an interview in your groups. Then make a report about the Internet.
You can report like this:
My name is ______. I’m from Group ___. In my group, We can use the Internet to send e-mails, and listen to music…… we think It is （有趣的/重要的）……. It can make our life ….But we （不应该）spend too much time on the Internet. Sometimes it may be dangerous.
Showtime
Summary
We learn:
some words and expressions: cheap, online,
information, face to face, language, headmaster …
the structure:
Subject + Vt. + Object + Object complement
We can:
talk about the usage of the Internet.
Homework
Read 1a aloud and fluently and finish the workbook. ( Levels A, B & C)
Search for more usages of the Internet. ( Levels A & B )
Check the usages and tell the good way to use the Internet from the bad ones. ( Levels A & B )
Optional:
Read a passage: History and Evolution of the Internet
https://www.21cnjy.com/help/help_extract.php
History and Evolution of the Internet
The Internet completely revolutionized communication and technology across the Globe. Initially, computerized devices were only used for large industries but later usage increased massively.
It is also mandatory for people to know that it is not possible for a single person to develop something as broad and wide as the Internet all by himself/herself. It was a combined effort of multiple researchers and programmers that the Internet was discovered.
Given below are a few important points which played an extremely important role in the development of the Internet and making it one of the most widely used resources across the world.
History and Evolution of the Internet
The first development was the introduction of host-to-host network interactions. This was first observed in ARPANET in 1969. It was developed by the Advanced Research Projects Agency (APRA) of the Department of Defense, U.S. It was one of the first general uses of computer networks.
The next step was commercializing the usage and making the transistors and transmitters fit in smaller devices for convenient Internet usage for the general public. This was introduced in the 1970s
Moving forward, satellites and wireless communication was the main target. Defense Advanced Research Projects Agency (formerly ARPA), supported satellite-based radio packets for mobile usage of networks
History and Evolution of the Internet
The next was the development of Transmission Control Protocol (TCP). This enabled different machines and networks across the world to assemble data packets. It was in the 1980s that the TCP/IP approach was adapted by researchers and technologists, following the footsteps of the U.S. Department of Defense
With the introduction of personal computers, the demand for commercial Internet usage increased. This was the time when Ethernet and other Local Area Networks cam in the foreground
In 1993, the web browser was introduced, which followed the point-and-click approach and is now a widely used operation for Internet users
History and Evolution of the Internet
The late 1990s was the time when thousands of Internet Service Providers has taken up the market and most of them were from the U.S.
And then the 21st century brought in an amalgamation of technology and wireless Internet accessibility for its users. Wherein, wireless broadband services came in as a boon for Internet users
Ways To Connect To Internet
Dial-Up – In such connections, users are required to link their phone line to a computer to access the Internet. Under this connection, the user cannot make or receive phone calls through tier home phone service
Broadband – Provided either through cable or phone companies, Broadband is a high-speed internet connection which is widely used today
Wireless Connection – Wi-fi and Mobile service providers fall under this category. Internet connectivity is made via radio waves and the Internet can be connected anywhere, irrespective of the location. Given below are a few examples of wireless connection:
Ways To Connect To Internet
Wi-fi – Wireless Fidelity or wi-fi allows high-speed internet connectivity without the use of wires
Mobile Phones – All smartphones are now equipped with an option for Internet connectivity which can be availed using Internet vouchers and packs. No external connection or wire is required for these
Satellite – Where broadband connections are unavailable, satellites are used for wireless Internet connectivity
Integrated Services Digital Network – ISDN allows users to sent audio or video data using telephone lines