《Language in use》Great inventions PPT免费课件(第2课时)

外研版九年级英语上册《Language in use》Great inventions PPT免费课件(第2课时)，共33页。

Work in pairs:

—— What do you think of Internet?

—— I think _____. What about you?

—— I think______.

Finish the exercises.

1. ——It's said that an airport ________ in Yangzhou.

——It's true. That's what we are getting excited about these days.

A．builds B．will build C．is building D．will be built

2.Tourists ________ because of their impolite behavior in our country from now on.

A.will punish B.was punished

C.will be punished D.is punishing

3. A new road ________ near my school next year.

A．builds B．will build C．is built D．will be built

The Internet was invented by the US government in the 1960s for the army to use.

In the 1970s，the Internet was wanted to use to send and receive messages by scientists and businesspeople.

In 1991，the World Wide Web was invented by a British scientist named Tim Berners-­Lee. People could send various types of files, such as texts, photos and videos by the Internet.

Read the passage and choose the best title.

a) The history of the Internet

b) The World Wide Web

c) The Internet and the Web

d) The future of the Internet

1. in the + 年代+s 的用法

The Internet was invented by the US government in the 1960s, for the army to use.

in the + 年代+s: 在……年代

in the 1960s: 在20世纪60年代

eg.

She was educated in England in the 1930s.

她三十年代在英国受教育。

2. allow sb. to do sth. 的用法

The World Wide Web allows people to send various types of files, such as texts, photos and videos by the Internet, so more and more people started to use it in the 1990s.

allow sb. to do sth.: 允许某人做某事

eg.

The Government will allow them to advertise on radio and television.

政府将准许他们在广播和电视上做广告。

3. across the world 的用法

People and businesses use e­commerce and online shopping to buy and sell things across the world.

across the world : 全世界

eg.

He had won 106 gold medals in major competitions across the world.

他已在世界重大比赛中获得了106枚金牌。

4. instead of 的用法

You can use Internet banking, instead of going to the bank.

instead of: （用…）代替…， （是…）而不是…

eg.

He decided that he would drive back to town instead of putting up for the night at the hotel.

他决定开车回镇上，不在旅馆过夜。

Answer the questions:

1. What has changed the way we write to each other?

Emails.

2. What is much easier and quicker to search for passages? E-books or books?

E-books.

3. Can people afford e-books?

No, not all people can afford e-books.

Discuss with your group.

Tell your group about the invention. Ask them for their ideas.

Make notes about your discussions.