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Section A (1a-2d);;What are the Four Great Inventions
in ancient China?;Chinese four great ancient inventions;Modern inventions;Talk about the inventions(发明).
Which one do you think is the most helpful in our daily life?;computer;car;calculator;telephone;radio;A: I think the TV was invented
before the car.
B: Well, I think the TV was
invented after the car.;A: I think the calculator was invented
before the computer.
B: Well, I think the calculator was
invented after the computer.;Look at the things below. In what order do you think they were invented? Discuss them with your group. Then number them [1-4](1=first,4=last); ; Student B, cover the dates. Student A, ask Student B when the things in the picture in 1b were invented. Then change roles and practice again. ;When was the car invented?;When was the computer invented?;Listen and number the inventions[1-3] in the order you hear them.;Invention;Make conversations using the information in 2b.;What are hot ice-cream scoop used for?; Role-play the conversation. ;3. Why does Roy think it is a great inven-
tion?
4. Who and when was the zipper invented?
5. When did the zipper become popular? ;1. Well, you do seem to have a point…
have a point 有道理
e.g. I admit (that) you have a point. 我承认你有理。;2. They are used for seeing in the dark.
be used for doing sth.表示“被用来做某
事”。与be used to do sth. 同义。表示用途、
目的。
e.g. This computer is used to control all the
machines. 这台电脑是用来控制所有机
器的。
Do you know what this tool is used for?
你知道这个工具是用来做什么的?;3. Think about how often it’s used in our
daily lives.
think about 表示“考虑,想起”。
e.g. He is thinking about travelling in the
summer holidays.
他正在考虑暑假旅游的事。
She was thinking about her childhood
days. 她正回想她的童年时期。;【拓展】有关think的短语;1.用所给单词的正确形式填空:;3. In those day, the woman couldn't _______(afford) a TV because
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