人教版九年級英語上冊《When was it invented?》PPT下載(第3課時(shí))，共22頁。
學(xué) 習(xí) 目 標(biāo)
學(xué)會(huì)運(yùn)用描述食物味道的單詞：crispy,sour,sweet,salty；
通過聽說訓(xùn)練，了解薯?xiàng)l的發(fā)明歷史；
學(xué)會(huì)用被動(dòng)語態(tài)談?wù)撌項(xiàng)l的發(fā)明歷史。
Listening
Read the sentences, what are they talking about? Listen and circle T for true or F or false.
1. Potato chips were invented by mistake.
2. They were invented in 1863.
3. The customer thought the potatoes were not thin enough.
4. The customer said they were not salty enough.
5. George wanted to make the customer happy.
6. The custom was happy in the end.
Listen and answer the questions.
1. Who invented potato chips?
They were invented by a cook called George Crum.
2. When were they invented?
In 1853.
3. What did the custom order at the restaurant?
He ordered a plate of fried potatoes.
4. What did the custom think of the potato chips George cooked at first?
He thought they were cut too thick.
5. How did George cook the potatoes then?
He cut the potatoes really, really thin and cooked them for a long time until they were crispy. And he put lots of salt on them so they were really salty.
Homework
1. Preview the new words and expressions.
2. Preview the passage Do You Know When Basketball Was Invented on page 46.
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關(guān)鍵詞：When was it invented? PPT課件免費(fèi)下載，.PPT格式；
