Unit 4 Amazing Science Topic 1 When was it invented SectionC课件（19张PPT）

课件19张PPT。 Unit4 Amazing Science Topic1 When was it invented? Section CReviewA: When was the car invented?
B: It was invented in 1885.
A: Who was the car invented by?
B: It was invented by Karl Benz. Make dialogs like this:Pair work Make up dialogs ShenzhouⅦ
launch /in China/in 2008light bulb invent/Thomas Edison/in1879laptopinvent/in Japan/
in 1985Work in groups and discuss the questions before reading.1.What is an invention?
2.Can you list some inventions?
3.Do you think you can be an列清单 inventor? Why?Work in groups and discuss the questions before reading.What is an invention?
invention n.发明，创造
invent v. 发明，创造
inventor n. 发明者，发明家
An invention may be a new product or a new way of doing things.2.List some inventions that you know and their inventors. v.列清单，把----列表
computer lock television light bulb chopsticks crayon …
n.彩色铅笔（粉笔，蜡笔）等
3.Do you think you can be an inventor? Why?
Yes, inventing is interesting and exciting and everyone can be an inventor. 1b Read 1a and put the sentences in the correct places A. Draw your invention. B. Name your invention.
C. Test your invention. D. Use your imagination. 想像力
E. Plan and design your invention. 愚蠢的 嘲笑___ You can have wild and crazy thoughts. Remember that no idea is too silly. Many people laughed at the Wright brothers and said they would never fly. But they weren’t discouraged by what people said. That’s why now we have planes.D1b Read 1a and put the sentences in the correct places_______ Careful planning is important in the invention process. This is the time to brainstorm for ideas and to evaluate them. 集思广益，动脑筋
_______ Make a detailed drawing of your invention so others will understand how your invention works. 详细的 评估
Make a model of your invention.
_______ See if your invention works as it is planned . If not, do more research, redesign it, and test it again.
_______ Every invention needs a name. 重新设计
Share your inventions with others. ABCEinvention
crayon
thought
silly
brainstorm
evaluate
redesign
detailed愚蠢的，傻的
发明，创造
彩色铅笔
想法，看法，主意
集思广益，动脑筋
重新设计
估值，评价，评估
详细的Match the words with their meanings.Words and phrases1 .come about:产生,发生（计划 ) happen:（偶然性，与what用）发生 the result of :------的结果 2.the result of accidents:源 于偶然 3.none of ----没有一个 4.laugh at:嘲笑 5.share ---with---与---一起分享 6.silly ：foolish 愚蠢的，傻的 7.redesign 重新设计(rewrite,retell,repeat----) 8.invent,发明，inventor发明家,invention发明
When you want to have an invention , first you must use your ________. Then you should plan and design it. Careful planning is very _________ in the invention. Third, you should make a _______ drawing of your invention and make a model of it. If you want to make your invention more successful, you must ______ it again and again. After that, you _______ your invention. Last, remember that you should _______ your invention with others. 1c Read 1a again and fill in the blanks. imaginationimportantdetailedtestnameshare2 Discuss with your partner which of the followings are the top 3 most important inventions and which is the least important invention. Then explain your choice to the class. Example:
I think zero is the most important invention. It is said that it was invented by an Indian. It is a very interesting number. For example, I have only ten yuan. If you add five zeros after it for me, haha, I will be a rich man.2.Which is the most important invention ?Why?keyboardgun3 Do you know how to be an inventor? Do you want to invent something? Write a passage about your invention. The following questions may help you . 1. How do you come to the idea of your invention?
2. What does it look like?
3. What is it made of/from?
4. What’s it used for?
5. What are you going to name it? My invention is a robot. It is called “Superman”. There is a computer inside its body. It looks like a tiger. When you see it for the first time, you may be frightened. In fact, it is gentle and polite. It can help us do housework, such as cleaning a room, washing dishes, and making the bed. When the room is dirty, it will begin to work at once. It can also watch over a house instead of humans. It is careful, clever and hard-working. In short, this robot is very useful to us, though it can’t run or speak. You can write it like this:1.People used the light bulbs widely in the past. (改为被动语态）
The light bulbs ______ ______ _______ by people in the
past.
2. We launched spaceships to explore other planets. (改为被动语态）
Spaceships ______ _________to explore other planets.
3. Gore Verbiniski directed the movie Pirates of the Caribean in America . (对划线部分提问）
_______ ______ Gore Verbiniski ________ the movie Pirates of the Caribbean?
4. The MP3 player was developed around 1998. (对划线部分提问)
________ ________ the MP3 player _______________?Exerciseswere widely used were launchedWhere did directWhen wasdevelopedSummaryWe learn : 1.Some words: invention, crayon, thought,
silly, balloon, gun, robot, keyboard
2.Some phrases: laugh at，come out，
the result of …， none of …
3. Some sentences:
Inventing is interesting and exciting and everyone
can be an inventor .
We can : 1. Talk about the process of an invention.
2. Write a passage about an invention. AssignmentRead 1a.
Memorize the useful expressions and key sentences that we learn today.
Finish Section C in your workbook.
Preview Section D.