《When was it invented?》SectionD PPT
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《When was it invented?》SectionD PPT
第一部分内容：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.
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《When was it invented?》PPT，第二部分内容：Read the passage and discuss the questions on Page88.
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?
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《When was it invented?》PPT，第三部分内容：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
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《When was it invented?》PPT，第四部分内容：Exercise
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.
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《When was it invented?》PPT，第五部分内容：Grammar
Passive Voice (Ⅱ)
The radio was invented by Guglielmo Marconi in 1895.
When was the digital camera developed ?
It was developed in the 1970s.
Where was it developed?
It was developed in Japan.
What is a rocket used for?
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.
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《When was it invented?》PPT，第六部分内容：Choose the best answer.
( ) 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
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《When was it invented?》PPT，第七部分内容：Project
This is Kangkang’s invention.
Look at the information and the picture.
What do you think of it ?
Discuss with your partners.
Project （2）
Describing Your Invention
2. Design your own invention. Draw a picture of it and write down the information about it.
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.
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《When was it invented?》PPT，第八部分内容：Summary
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.
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《When was it invented?》PPT，第九部分内容：Assignment
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.
《When was it invented?》SectionD MP3音频课件 文件内包含本课教学使用的MP3音频文件，非常适用于本课教学。
《When was it invented?》SectionC MP3音频课件 文件内包含本课教学使用的MP3音频文件，非常适用于本课教学。
《When was it invented?》SectionB MP3音频课件 文件内包含本课教学使用的MP3音频文件，非常适用于本课教学。
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