外研版九年級英語上冊《Language in use》Great inventions PPT教學課件，共27頁。
新課導入
根據漢語完成句子
1.它們將被公布在學校的網站上。
They’ll____ _____ _____on the school website.
2.未來電腦會比書籍應用更廣泛嗎？
______computer _____ ______more than books in the future?
3.書籍會被互聯網所取代嗎？
______books______ ___________by the Internet?
新課講解
Complete the sentences and conversations with the correct form of the words and expression in brackets.
1．________ books ____________ (replace)by computers in the future?
2．My bike is broken. It _____________ (fix)tomorrow.
3．—Dad，can I use the Internet this evening?
—Yes，but the computer is not on yet. The electricity______________________(not connect)until nine o'clock.
4. ____ the problem ____________ (talk about) at the meeting tomorrow?
5. Who ____________ (invite) to give a report about great inventions next Friday?
6. --When ___ the work _________ (finish)?
--In two days.
Possible answers
A new floor will be built.
New furniture/desks/chairs will be bought.
A new blackboard will be bought.
A new interactive whiteboard will be bought.
The windows and the door will be changed.
The teacher's desk will be painted.
The lights will be changed.
The colour of the walls will be changed.
Listen again and answer the questions.
1.Why were so few books produced in ancient times?
Because they were written by hand.
2.Why were many old books copied onto a computer?
They are too valuable to be picked up and held in the hand.
3. How has the computer helped people read old books in the British Library?
Old books were copied onto a computer a few years ago for people to be able to read them without touching them.
Work in groups. Prepare for your discussion.
Think of an invention that has changed your life.
Make notes about the invention:
1 What is it?
2 Why is it useful?
Research how the invention has been developed and make notes about what you find out.
Language points
allow /ə'laʊ/ v. 允許
(1)allow作“允許”或“許可”講，
allow sb. to do sth.允許某人做某事。
(2)allow 作“許可，允許”講，
只可說 allow doing sth., 不可說allow to do sth.。
eg：They allowed smoking in this room only.
他們只允許在這間屋子里抽煙。
My boss doesn't allow me to use the telephone.
我的老板不允許我用電話。
not all...并非所有的
eg：Not all people can afford a car.
并非所有人都買得起轎車。
not all是部分否定，英語中的not與all, every, everyone, everything, both等詞連用時，都表示部分否定，意為“并不都……”。若表示全部否定時，要用none, neither, no one, nothing等。
That changed in 1991, when a British scientist named Tim Berners-Lee invented the World Wide Web.
在1991年，當一個叫蒂姆•伯納斯李的英國科學家發明了萬維網的時候，這種情況發生了改變。
when引導非限制性定語從句，修飾先行詞1991，在 定語從句中作狀語；named Tim BernersLee為過去分詞 短語作后置定語，
相當于who was named Tim BernersLee,修飾a British scientist。
課堂小結
Key words
direction, electricity, repair/fix, connect
Key Phrases
give a report, stay away form, send and receive message,
with the development of...
Key sentences
The Web also makes people's lives easier because now many things can be done from home,twenty-four hours a day.
The Internet was invented by the US government in the 1960s.
... ... ...
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