Unit 6 When was it invented?Section B（3a-3b self check）课件(共23张PPT)

(共23张PPT)
Period 5 3a-3b
Self check
Section
B
Unit 6 When was it invented
一、在语境中理解、掌握以下词汇：
nearly, ruler, boil,remain,smell,national,trade,doubt,
take place,not...until;by accident
二、通过学习，掌握以下句型：
1.It is said that ....
2.It is believed that ...
3.Tea didn't appear until around 1660.
三、通过阅读文章，进一步理解被动语态表达发明和创造的方法。
Tell the development of the basketball.
Telling
Ha, I want to invent a special broom.
What do you want to invent
What is it made of
It’s made of stainless steel.
It is used for flying to the sky.
What is it used for
When can it be used
If you have something urgent, the traffic is very busy, then we can use it.
This kind of broom is much cheaper than the helicopter. Everyone can afford it.
How much will it cost
Writing
Problem: ________________________
New invention: ____________________
What it is used for: _________________
Think of something that you do not like to do. Then think of an invention that could help you. Make notes.
a special pen
quickly taking notes in class
taking notes in class
3a
This special pen was invented by Liu Jie. It has three colors and is used for ….
Imagine you are a business person. Write a description of your new invention. Try to sell the invention to the class.
3b
本文根据要求是一篇说明文。本单元的话题是谈论“发明（inventions）”如手机（cellphone）、电话（telephone）、电脑（computer）等。注意文章结构以及要介绍的内容，如发明时间以及用途等。
写作时，主要用 ____________人称.
时态应用____________和 ___________ .
第一、第三
一般过去时
一般将来时
写作指导
The opening point
main part;
ending
对未来的
畅想
引出话题
总述发明
详细介绍
发明
思路点拨
This special pen was invented by Liu Jie. It has three colors and is used for taking notes quickly. It is useful if you have to write down a lot of notes.
The pen comes with a microchip that can store lots of words and sentences that you need to use. When you are writing, you just need to write the short forms with
范文示例
the pen. Then press a button on the pen, and all the short forms will change into the actual words.
I believe that the special pen will become more and more popular.
It is often difficult to decide on the inventor of certain inventions. This is because sometimes a few people may ______ things which are _______ the same. It’s hard to tell who came up with the idea first.
invent, doubt, mention, nearly, website, all of sudden
Complete the passage with the correct forms of the words in the box.
invent
nearly
1
Some inventions can also lead to other inventions _____________. So some people _____ whether the inventor came up with the idea himself or herself. They think that the inventor used someone else’s idea to create his or her invention. That is why books or _______ usually _______ more than one inventor when giving information about inventions.
all of a sudden
doubt
websites
mention
1. Someone stole my watch.
_________________________________
2. They used five eggs to make this big cake.
__________________________________
3. When did they invent the personal computer
__________________________________
__________________________________
My watch was stolen (by someone).
When was the personal computer invented
Five eggs were used to make this big cake.
Rewrite these sentences using the
passive voice.
2
4. They asked us not to run in the hallway.
__________________________________
__________________________________
5. Someone took the video back to the store.
__________________________________
__________________________________
The video was taken back to the store (by someone).
We were asked not to run in the hallway (by them).
Invention: _________________________
When: _________________________
Who: _________________________
Purpose: _________________________
in 2013
umbrella with a light
Li Meng
Find out information about an invention you would like to know more about and write sentences below.
seeing in the rain in the dark
3
Don’t drink the soup. It smells _____.
A. nice B. delicious C. salty D. terrible
2. About over 80 years ago, Mickey Mouse first appeared in the cartoon. ____
A. more than B. less than
C. at most D. at least
D
A
单项选择。
Exercises
3. The Great Green Wall can stop the wind and sand _____ to the rich land in the south of China.
A. move B. to move C. from moving
4. Miss Wang divided her students _____ two
groups.
A. for B. into C. at D. from
C
B
用所给词的适当形式填空。
daily
1. Now computers are widely used in our
______ (day) lives.
2. He mentioned _________ (hear) from her
often.
3.The soup is very _______ (salt) because my
mother put lots of _____ (salt) on it.
4. Since then, the ___________ ( popular ) of
basketball has risen quickly.
5. I have worked here for _______(near) two
years.
hearing
salty
salt
popularity
nearly
按要求改写下列各句。
1. We planted these trees in 1997. (改成被动语态)
____________________________________
2. He made a cake yesterday. (改成被动语态)
____________________________________
These trees were planted (by us) in 1997.
A cake was made by him yesterday.
3. The teacher gave the students some advice. (改成被动语态)
___________________________________
______________________
4. He was seen to read a book in his room. (用I作主语, 改为主动语态)
_____________________________________
5. She was helped by all the people.(改成一般疑问句)
_____________________________________
Some advice was given to the students by the teacher.
I saw him read a book in his room.
Was she helped by all the people
Homework
1. 试着向你的朋友用英语讲述篮球的发展过程。
2. 用下列词汇造句子。
look up to, by mistake, daily activities, It is said, all of a sudden, fall into, at the Olympics