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(共17张PPT)
Unit 4 Amazing Science
Topic 1 When was it invented
Section C
Learning aims:
Knowledge aim:
Master the new words and key phrases.
Go on learning the passive voice of past tense.
Ability aim:
Improve reading and writing ability.
Emotional aim:
Enable to become more interested in inventing things.
invention
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.
--Who invented the light bulb
-- Thomas Edison.
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 inventions.
3. Do you think you can be an inventor
Fast-reading
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.
E Plan and design your invention.
Answer: D E A C B
1a Read and understand.
key phrases
1. may be 可能是
2. come about
3. the result of
4. be made in
5. Do you want to be an inventor
6. in the invention process
6. laugh at
7. be discouraged by
7. wild and crazy thought 狂野的想法
8.careful planing 认真计划
9. make a detailed drawing 画一个详细的图纸
10.make a model 制作一个模型
11.test it again 再次实验
key phrases
6.use your imagination 运用你的想象力
7.again and again 一次又一次
8.the most important invention最重要的发明
9.theleast important invention最不重要的发明
10. explain ...to.... 向...解释...
thought的用法：
1.可数名词 ： 想法，看法， 主意。相当于idea
2.不可数名词： 思想，思索
Mao Zedong s thought
He sat there，deep in thought。
3. think 的过去式和过去分词
discourage 的用法
1. 动词 ，使沮丧，阻止，劝阻
discourage sb. from doing sth.劝阻某人不要做某事
2. discouraged 形容词 受挫折的，气馁的
discouraging 形容词 使人沮丧的，使人气馁的
3. discouragement 名词 劝阻，使人气馁的事
4. detail n. 详细，各种细节
in detail 详细
vt. 详述，仔细汇报
1c Read 1a again and fill in the blanks.
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.
imagination
important
detailed
test
name
share
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 can launch 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 _______________
Exercises
were widely used
can be launched
Where did
direct
When was
developed
3 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
Before writing, think more clearly and tell about the looks, uses, advantages and disadvantages of an object.
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:
Summary
We learn : 1.Some words: invention, crayon, thought,
silly, balloon, gun, robot, keyboard
2.Some phrases: laugh at，come 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.
Thank you !

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