牛津英语8A课件Unit4-invention.ppt（纯ppt,可能不含音视频素材）

1、Module 2 Science and technologyOxford English11We can use it to communicate with people over long distances.2 We can make phone calls with it anytime,anywhere.3 It is perhaps one of the most practical inventions in the 20th century.Now people use it for both work and play.telephone/mobile phonemobil

2、e phonecomputerlift4 After its invention,we no longer needed to use the stairs.Guessing gameairplane/aircraftair conditionerthe underground5 It cools or warms rooms to make them more comfortable for people to stay in.6 Passengers who use this for transportation no longer need to worry about traffic

3、jams.7 The Wright brothers invented the first machine-powered model of it.What inventions are described in the following sentences?Revision:Vocabularycomfortable carriage centurypassenger practicaldistance keep in touch withdevelopin the daytimeimaginecandle mobile phonewheelComplete the sentences w

4、ith the words you have just read.Change their forms if necessary.You may need to fill in more than one word.1 Da Vinci is the most famous 15th_ painter.2 Many years ago,people used _ to light up their rooms.3 _can get free water at the airport.4 Could you help me change the left _ of my car?The tyre

5、(轮胎)is flat.5 How can I keep in touch with you if your _ is off all the time?6 A straight line is the shortest _ between twopoints.mobile phone2 Which invention is probably the greatest in history according to the article?4 When was the first practical light bulb invented?3 What did Alexander Graham

6、 Bell invent?1 How do great inventions help people?The wheel.He invented one of the first practical telephones.In 1879.They help people live a better life.Skim the article and answer the following questions.InventorTime of inventionLife after its inventionExamples:The wheelRead the first part of the

7、 article and complete the table.Dont know.A few thousand years ago.Travelling became faster and more comfortable.carriages trains cars2What else needs wheels?Why is the wheel perhaps the greatest invention in history?The telephoneAlexander Graham Bell invented one of the first practical telephones i

8、n 1876.Since then,people have been able to speak to each other over long distances.Today millions of people across the world own mobile phones.They allow people to keep in touch with each other anytime,anywhere.InventorTime of inventionLife after its invention People can _.People can _ _.The telepho

9、neover long distancesspeak to each other mobile phones keep in touch witheach other anytime,anywhere with Read the second part of the article and complete the table.Present the table as a dialogue.Alexander Graham Bell.In 1876.The light bulbThomas Edison developed the first practical light bulb in 1

10、879.Before the invention of the light bulb,people had to use oil lamps,gas lamps or candles to see at night.With light bulbs,people can do as many things in the evenings as they can in the daytime.Can you imagine living without them?Read the third part of the article and answer these questions.The l

11、ight bulbPeople used oil lamps,gas lamps or candles.People can do as many things in the evenings as they can in the daytime.1946,ENIAC,the first computer1981,IBM,the first PCNow,laptops,tabletsThe computerTalk about the invention of the computer using the information below.The computer is perhaps th

12、e greatest invention of the 20th century.In,After its invention,Since then,Before the invention of,With,people Today,Can you imagine life without computers?Useful words/expressions:invent developbe able tohave toacross the worldallow to do keep in touch with The computer1946,ENIAC,the first computer1981,IBM,the first PCNow,laptops,tabletsThe computer5Which is the greatest invention?Prepare a report in groups.Present the report next lesson.Your report should contain:1.When was it invented?2.Who invented it?3.How is life before its invention?4.How is life after its invention?Homework: