Unit 6 When was it invented第五课时：Section B(3a-Self Check)课件（18张PPT）

(共18张PPT)
When was it invented
Unit 6
第五课时：Section B
(3a-Self Check)
同学们，上一课学习的单词你们都掌握了吗？现在大家来检验一下，点击下面的音频开始听写吧！
Discuss about what you want to invent and why.
Think of something that you do not like to do. Then think of an invention that could help you. Make notes.
3a
Problem：_______________________________
New invention：__________________________
What it is used for：_______________________
quickly taking notes in class
a special pen
correcting mistakes
Imagine you are a business person. Write a description of your new invention. Try to sell the invention to the class.
3b
This special pen was invented by Liu Jie. It has three colors and is used for...
eg：This special pen was invented by Liu Jie. It has three colors and is used for taking notes and correcting mistakes. It is very cheap. It is easy to take. It is made of plastic so it's not heavy. Do you want to buy it
Self Check 1
Complete the passage with the correct forms of the words in the box.
invent　doubt　mention　website
all of a sudden
It is often difficult to decide on the inventor of certain inventions. This is because sometimes a few people may ________ things which are almost the
invent
same. It’s hard to tell who came up with the idea first.
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
invent　doubt　mention　website
all of a sudden
This is because... 这是因为……
考向
系动词之后是表语，表语是由一个句子充
当的，即称为表语从句，连接表语从句的
词有：because，why，that，what，who，
when，where，which，whether，how等。
知识点
eg：All the cars are going slowly. This is because
there is a thick fog.
所有的车都开得很慢，这是因为有浓雾。
His bike was broken. That is why he came to
school on foot.他的自行车坏了。那就是他
步行来学校的原因。
典例
You have spent too much time playing computer games. That’s________ your eyes hurt. (潍坊)
A．why 　 B．how
C．what　 D．when
【点拨】句意：你花费了太多的时间玩电子游戏，那就是你眼睛疼的原因。That’s why...那是……的原因。
A
Self Check 2
Rewrite these sentences using the passive voice.
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.
Five eggs were used to make this big cake by them.
When was the personal computer invented by them
4．They asked us not to run in the hallway.
_______________________________________________
5．Someone took the video back to the store.
_______________________________________________
We were asked not to run in the hallway by them.
The video was taken back to the store by someone.
Self Check 3
Find out information about an invention you would like to know more about and write sentences below.
Invention：_______________________________
When：_________________________________
Who：___________________________________
Purpose：________________________________
Bell
Telephone
1876
To communicate with others
一、完成句子
1．他考虑过去法国，但最终决定去加拿大。
He thought about going to France, but ________ ________ going to Canada finally.
2．一些人怀疑他是否在音乐上有天赋。
Some people ________ _________he has talent in music.
3．谁想出来那个主意的？
Who________ ______ ______ the idea
4．很多商店要求顾客不要使用塑料袋。
Customers______ ________ ________ ______
use plastic bags in many shops.
decided on
doubt whether
came up with
are asked not to
5．所有这一切发生得太突然了。
All these things happened______ _______ ______ _______.
enjoyed
all of a sudden
二、综合填空
Basketball is a much loved and active sport that is ________6 by many people for fun and ________7. It is played by more than 100 million people. In 1936 in Berlin，basketball became an event at the Olympics.
Basketball was ________8 by a Canadian doctor. When he was a college teacher，he ________9a game to be played
indoors. Players need to be ________10 into two teams.
enjoy, invent，achieve，create，popular,
look up to，not only，hero，divide, pleasant
pleasure
invented
created
divided
Players on the same team must work together to get the ball in the other team's basket. At the same time，they need to stop the competing team from getting the ball into their own basket.
Now, the __________11 of basketball has risen. Basketball has ________12 become a sport to play，but it has also become a sport to watch. There are more and more foreign players in the NBA and the CBA.Many young people dream of becoming famous players. Some even_________13 those basketball players. They regard them as ________14. Those basketball stars encourage young people to work hard to ________15 their dreams.
enjoy, invent，achieve，create，popular,
look up to，not only，hero，divide, pleasant
not only
look up to
heroes
achieve
popularity
本节课主要学习掌握了如何写有关自己的发明物的作文，做了Self Check部分的练习题并掌握了知识点This is because…的用法。
课后作业A
课后作业B
1.熟记本课时的词汇
2.完成本课时的课后作业