九年級英語全冊 Unit 6 When was it invented（第6課時）Section B（3a3b）課件 （新版）人教新目標(biāo)版

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1、Unit 6When was it invented?第六課時第六課時Section B (3a3b)I think the TVyou canseeIt was brought toDo you know One ofwas inventedIts believed thatI thought about it becauseWhobyIts hard to There are many inventions that have caused great changes in the world. Heres a short introduction. For example，the dig

2、ital camera was invented by Steven J.Sasson. It was invented in 1975 and it is used for taking photosThe telephone was invented by Alexander Bell in 1876Its used for communicating with othersThe radio was invented by Guglielmo Marconi in 1895Its used for listening to news and music.The flying bike h

3、as two wheels and two wings. It has a top speed of 300 km/h. You can go to farther places in a shorter time. It can run on land and fly in the air. If you shout“fly”， the bike will turn into a plane in 30 seconds. Then you can fly in the air. You will be as free as a bird. It can take photos, too.It is fast, convenient and green！Instead of petrol, the bike uses solar power, so it will not pollute the air.I will add a seat behind it so that it can carry two persons.My invention will help people live a better life in the future.