人教新目标Go For It!英语九年级全册《When was it invented?》PPT课件8
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《When was it invented?》PPT课件8
Lead in
Talk about the inventions(发明).
Which one do you think is the most helpful in our daily life?
Role-play the conversation.
Read the passage quickly and answer the questions.
1. What is the subject for their school project?
2. What kind of invention does Roy think of?
3. Why does Roy think it is a great invention?
4. Who and when was the zipper invented?
5. When did the zipper become popular?
... ... ...
Complete the sentences with the correct forms of the verbs in the box.
invent, drink, bring, produce, trade
1.One of the world’s favorite drinks was________ by accident.
2.Tea was first ________ by Shen Nong 5,000 years ago.
3.A nice smell was _________ when the tea leaves dropped into the hot water.
4. Tea was__________ to Korea and Japan during the 6th and 7th centuries.
5.Tea is now ________ between many different countries.
... ... ...
The simple past passive voice
一般过去时被动语态
一般过去时被动语态表示过去经常性、习惯性被动动作或过去某一时刻发生的被动性动作，与主动语态相比,被动语态中主语是谓语动作的执行者。
被动语态的构成:
助动词was/were+ (及物动词的) 过去分词
was (were) + done
用所给动词的正确形式填空：
1. The bike __________(fix) up by Xiaoming yesterday.
2. Shields ________ (use) for protecting people’s body in the past.
3. Last year, a picture _________(put) up on the blackboard.
4. She said French______________ (speak) in France.
5. Teenagers _______________(allow) to choose their own clothes two years ago.
... ... ...
Homework
Suppose you are alone on a tiny island. What inventions would you like to have on the island with you? Write a short passage.
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