Unit 6 When was it invented Section A 1a—2d课件＋音频(共18张PPT) 人教版九年级全一册

(共18张PPT)
Unit 6 When was it invented
The First Period
Section A(1a—2d)
Warming up
1.Do you know what these inventions are
2.Do you know who these inventors are
1a
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).
A: I think the TV was invented before
the car.
B: Well, I think the TV was invented
after the car.
1
2
3
4
1b
Listen and match the inventions with the years.
______ 1876
______ 1885
______ 1927
______ 1971
d
a
c
b
1c
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.
A: When was the telephone invented
B: I think it was invented in 1876.
hot
ice-cream scoop,
runs on
electricity
shoes
with lights
1
shoes
with special
heels
2
3
2a
Listen and number the inventions [1-3] in the order
you hear them.
2b
Listen again and complete the chart below.
Invention What is it/are they used for
shoes with special lights __________ the style of the shoes
shoes with lights seeing ______________
hot ice-cream scoop _________ really cold ice-cream
changing
in the dark
serving
2c
Make conversations using the information in 2b.
A: What are they used for
B: They’re used for…
Paul: Hey Roy, the subject for my school project is “Small inventions that changed the world”. Can
you help me think of an invention Roy: With pleasure! Let me think … hmm … I know! The zipper! Paul: The zipper Is it really such a great invention Roy: Think about how often it’s used in our daily lives. You can
see zippers on dresses, trousers, shoes, bags … almost
everywhere!
2d
Role-play the conversation.
Paul: Well, you do seem to have a point … Roy: Of course! I thought about it because I saw a website last
week. The pioneers of different inventions were listed there.
For example, it mentioned that the zipper was invented by
Whitcomb Judson in 1893. But at that time, it wasn’t used
widely. Paul: Really So when did it become popular
Roy: Around 1917.
Answer the questions.
1.What’s the invention in the conversation
2.Who invented the zipper When was the zipper invented
The zipper.
The zipper was invented by Whitcomb Judson.
In 1893.
1. invent的用法
invent v. 发明 invention n. 发明 inventor n. 发明者
e.g. Edison was a great inventor.He invented a lot of things. 爱迪生是一个
杰出的发明家，他发明了许多东西。
【辨析】 invent,discover,find与find out
① invent 意为“发明，创造”，主要通过想象、研究、劳动创造出前 所未有的东西，尤指科技上的发明创造。
② discover 指发现或偶然发现原来就存在但一直未被认识的事物。
③ find 强调寻找的结果，即“找到”，通常指偶然发现。
④ find out 指经过观察、调查，把某事、某物查出来，搞清楚、弄明白。
Language Points
2. Is it really such a great invention 它真的是这么伟大的一项发明吗？（教材第42页）
such 形容词，意为“这样的，如此的”，常用在句中作定语，其结构为“such (a/an) +adj.+n.”。
e.g. There’s no such thing as a free lunch. 世上没有免费的午餐这类好 事儿。
Why do you buy such expensive clothes 你为什么买这么贵的衣服？
3.Think about how often it’s used in our daily lives.想想我们日常生活中多久使用一次。（教材第42页）
daily 形容词，意为“每日的，日常的”，用作 lives 的定语。
e.g. What is your daily work 你的日常工作是什么？
daily 还可以作名词，意为“日报”。
People’s Daily 《人民日报》 China Daily《中国日报》
一、语篇填空之基础训练
1. —Which of the two T-shirts would you like
—Neither. I don’t like their ________.
2. —Thank you for taking me around your school, Daming.
—Don’t _________ it.
3. Mom often ________ what she wants to buy before going shopping.
styles
mention
Exercise
daily mention style website list project
lists
4. For more information, you can visit our __________.
5. Bob knows how to cut the cost of the ________.I’m sure he
can do the work with less money.
6. We should be kind to the old and take care of them in the
_______ lives.
website
project
daily mention style website list project
daily
二、用所给词的适当形式填空
1. The teacher’s office ___________(clean) by us yesterday.
2. The ________ has a lot of ___________.(invent)
3. MP3 is used for _________ (play) music.
4. —Can you help me
—With _________(please).
was cleaned
inventor
inventions
playing
pleasure
1.Listen and read after the tape at home.
2.Read and recite 2d.
Homework