(共19张PPT)
Unit 4 Amazing Science
Topic 1 When was it invented
Section D
What’s it used for
It’s used for listening to music.
What’s it made of
It’s made of plastic.
Where was it invented
It was invented in Korea.
When was it invented
It was invented in 1998.
What’s it used for
It’s used for communicating easily.
What’s it made of
It’s made of plastic and metal.
Where was it invented
It was invented in America.
When was it invented
It was invented in 1973.
What method did you use to find your lost cellphone
GPS is like a man-made star. We can use it at any time, in any place and in any weather to find out our position. The early explorers used the stars as landmarks to know where they were and in which direction they were going. This method worked well at night as long as the weather was good. But it didn’t
work so well during the rest of the time.
Let’s use the GPS.
n.探险者，
勘探者
1. How did the early explorers know where they were
They found out where they were by using stars.
2. What’s the disadvantage of using the stars as guiding marks
Its disadvantage is that it didn’t work well when the weather was bad and the stars could not be seen.
3. What is a GPS Is it useful to use
It is like a man-made star. We can use it at any time, in any place and in any weather to find out our position. It is very useful.
4. What do you think the GPS will be used for in the future
…
Read the passage and discuss the questions on Page88.
Key words
explore
explorer, mark
find out, in…direction
work well, as long as
the rest of the time
solve, like, use, the shape of
great invention
n.标示，记号，符号
v.做记号，做标记
Retell it !
根据首字母提示，完成短文。
Thanks to GPS, we can exactly know w _____we are now. GPS is like a man-made “star”. It can be u____ in any place and any weather condition to find out our p________. In the past, the early explorers had to use stars in the s____ to tell them where they were, however, this method didn’t work well when the weather was bad. So GPS is a great invention that can help humans to better e________ our planets.
here
osition
sed
ky
xplore
Grammar
Passive Voice (Ⅱ)
The radio was invented by Guglielmo Marconi
in 1895.
When was the digital camera developed
Where was it developed
What is a rocket used for
It was developed in the 1970s.
It was developed in Japan.
It is used for sending satellites or spaceships into space.
Functions
I wish I could go into space some day.
I hope your dream will come true.
It’s said that he invented more than two thousand things during his life.
Inventing is interesting and exciting and everyone can be an inventor.
Passive voice was /were +done
( ) 1. A big supermarket _____in our city last year.
A. is built B. were built C. was built
( ) 2.Could you tell me who the radio ____ by
A. invents B. invented C. was invented
( ) 3. Many trees and flowers _____ in our school last year.
They made our school more beautiful.
A. have planted B. were planted C. planted
( ) 4.The children ____ swim last month and they can swim
very well now.
A. are taught B. were taught C. were taught to
( ) 5.It is said that potato chips _____by mistake about one
hundred years ago.
A. were invented B. invented C. are invented
C
B
C
A
C
Grammar exercise
1.You are late, all the tickets __________(sell) out an hour ago.
2.This type of cellphone ____________(make )in Shenzhen.
3. I _________________ ( not invite) to yesterday’s party.
4. ________ those machines __________(check) this morning
5. Many trees and flowers ______________(plant) in our school last year, and they made our school a beautiful garden.
were sold
were made
were/was + v.的过去分词
wasn’t invited
Were
checked
were planted
1.People use radios to learn English in the past.
_____________________________________________
2.Jack will show me the photo.
______________________________________________
3.They have raised much money for the Project Hope.
______________________________________________
4.I often hear Mary sing English songs at home.
_______________________________________________
5.We mustn’t throw litter about.
________________________________________________
6.People can visit planets like Mars.
_________________________________________________
Radios were used to learn English in the past.
The photo will be shown to me.
Much money has been raised for the Project Hope.
Mary is often heard to sing English songs at home.
Litter mustn’t be thrown about.
Planets like Mars can be visited.
Change the following sentences into Passive Voice.
( ) 1.Hurry up, you ____ on the phone.
A. Wanted B. was wanted C. are wanted
( ) 2. Some stories _____the children by the teacher
everyday.
A. is told for B. are told for C. are told to
( ) 3._____that he has studied abroad for five years.
A. It is said B. It says C. That is said
( ) 4.The window ____ five minutes ago.
A. is cleaned B. was cleaned C. can be cleaned
( ) 5.The children ______by the teachers at school.
A. take care of B. are taken care
C. are taken care of
C
C
A
B
C
Choose the best answer.
( ) 6. I have no idea what ______while I was asleep.
A. happened B. was happened C. happens
( ) 7. In some countries, tea _____before meals.
A. is serving B. is served C. served
( ) 8. This kind of books ______well.
A. doesn’t sell B. isn’t selling C. aren’t sold.
( ) 9. I ______ten minutes to decide which sentence was
right by the teacher.
A. gave B. was given C. was giving
( ) 10. Teachers ______in every part of the world.
A. are needing B. are needed C. will need
A
B
A
B
B
Project (1)
This is Kangkang’s invention.
Look at the information and the picture.
What do you think of it
Discuss with your partners.
Name: Plar (plan-car)
Inventor: Kangkang
Year: 2014
Use: Both flying and driving
2. Design your own invention. Draw a picture of it and write down the information about it.
Name :____________
Inventor:___________
Year:_____________
Use:______________
Project （2）
Describing Your Invention
3. Show the picture of your invention and describe it to the class.
4. Discuss in groups to decide which is the most useful /interesting/funny invention.
We Learn: 1. Some words : mark, explorer
2. Some phrases: find out, in …, direction,
as long as, work well, the rest of the time,
be used to, the shape of
3. Some sentences:
This method worked well at night as long
as the weather was good and the stars could be seen.
We can: 1. Use the passive voice of the simple past tense more
properly.
2.Talk about new technology GPS.
3. Develope our imagination and creativity by
designing our own inventions.
Read 1a.
Memorize the useful expressions and key sentences that we learn in this topic.
Finish Section D in your workbook.
Preview Section A of Topic 2.
Thank you课件内容介绍和使用说明
本课件是为仁爱英语九年级上册Unit 4 ( http: / / www.21cnjy.com ) Topic 1 Section D编写的教学课件， 这是第四单元第一话题的第四课时。本课为读写课，重点是培养学生的阅读与写作能力，让学生更多了解发明物方面的科学知识，激发学生的科学探索精神，并对本话题的所有知识进行归纳和总结。课件在设计上注重对学生综合语言运用能力的训练，设计了形式多样的练习题，内容覆盖面广。为更好更有效地实现本课教学目标，本课件从学生实际出发，对教材进行了必要的整合，教学设计直观生动。基于本节课主要活动是单元复习和1a，因此对教学设计作如下安排：
Getting students ready for learning:
出示发明物的图片，与学生一起对话复习一般过去时的被动语态。(幻灯片2、3)
Pre-reading:
紧承上面的话题，以手机为切入点，导入新课。(幻灯片3 )
简单介绍GPS，让学生了解其意义，展示GPS的背景知识。(幻灯片4)
While-reading:
让学生自行阅读，然后讨论文章后的四个问题，四人一组完成。(幻灯片5 )
播放录音。要求学生认真听录音并画出关键词。教师汇总在幻灯片上。 (幻灯片6 )
Post-reading:
学生根据提练的关键词复述课文。分男、女两组以竞赛方式进行，激发学生的兴趣，巩固所学知识。 (幻灯片6 )
再读文章，完成信息转化练习。(幻灯片7)
Practice:
让学生自主归纳本话题的语言项目和功能句。(幻灯片8、9 )
巩固练习本话题所学知识。(幻灯片10—14 )
Project：
呈现Kangkang的发明物，看信息和图片，然后和同伴一起讨论图片。(幻灯片15 )
学生自己画一个发明物，写下相关信息。向同学位描述自己的发明物，并小组讨论谁的发明物是最好的。(幻灯片16 )
Assigning homework:
① 总结本堂课的新单词、短语和新语法项目，让学生能把握整堂课的重点。(幻灯片17 )
② 设计了书面显性作业及课文朗读、对话练习、预习新课等隐性作业。(幻灯片18)
