人教版九年級英語上冊《When was it invented?》PPT下載(第1課時(shí))，共43頁。
學(xué) 習(xí) 目 標(biāo)
聽并用被動(dòng)語態(tài)談?wù)撝匾陌l(fā)明及其歷史
(1)—When was … invented?
—I think it was invented in…
(2) I think … is invented before/after…
聽并用被動(dòng)語態(tài)談?wù)摪l(fā)明物的用途
What is/are … used for?
It is/they are used for...
課 堂 學(xué) 習(xí)
Do you know what these inventions are?
Bell invented the first telephone in 1876.
The first telephone was invented (by Bell) in 1876.
Karl Benz invented the first car in 1885.
The first car was invented (by Karl Benz) in 1885.
J. L. Baird invented the first television in 1927.
The first television was invented (by J. L. Baird) in 1927.
Lead-in
Where can you see it?
Pants, trousers, bags, backpacks, shoes, suitcases, etc.
Role-play the conversation.
Read the passage quickly and answer the questions.
1. Who invented the zipper?
It was invented by Whitcomb Judson.
2. When was the zipper invented?
It was invented in 1893.
3. When was it used widely?
It was invented in 1917.
Homework
Preview the passage in 3a.
Look up some information about some famous inventions.
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關(guān)鍵詞：When was it invented? PPT課件免費(fèi)下載，.PPT格式；
