《Keep the Candle Burning》Look into Science! PPT下载
第一部分内容：Lead in
It’s an interesting Experiment !
Brain holds a jar that is filled with water upside down, but Danny dosen’t get wet.
Another amazing experiment
What will the experiment be !
I’m sure you will like this experiment !
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Keep the Candle BurningPPT，第二部分内容：Learning Aims
1.New words：
holder shallow lighter match
examine oxygen
2. Phrases :
fill…with use up one fifth be made up of
3. Importance :
Do the experiment and learn to describe how to do the experiment .
New words
holder /'həʊldə / n.支托物；持有者
shallow /'ʃæləʊ / adj. 浅的
lighter/'laɪtə / n. 打火机；点火器
match / mætʃ/ n. 火柴 v. 相称；相配
examine /ɪg'zæmɪn / v. 检查
oxygen / 'ɒksɪdʒən / n. 氧气
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Keep the Candle BurningPPT，第三部分内容：Class Activity
Activity 1 : Listening ＆ ordering
Listen to the audiotape and put the sentencesin the correct order:
( )Let the candle burn for two or three minutes.
( )Put the candle in the candle holder.
( )Carefully put the jar over the candle until the top of the jar rests on the dish.
( )Put the candle holder on the dish.
( )Fill the dish half full with water.
( )Examine the water in the jar.
( )Light the candle.
Activity 2 :Read the lesson and fill in the blanks.
Let’s do the experiment together ! Put the candle in the candle ______. Put the candle holder on the____ . Fill the dish half full with water. _____ the candle with a ______ or a lighter. What can you see?
The candle is burning. ____ the candle burn for two or three minutes. Then carefully put the jar over it until the top of the jar rests on the dish. As the candle burns, it _____ the oxygen in the air. When the candle stops _______ , it has used ___ all the oxygen in the air. The water inside the jar _____ and fills about ________ of the jar. This is because about one fifth of the air is made up of oxygen.
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Keep the Candle BurningPPT，第四部分内容：Exercise
词汇巩固
1. There are two candle ________(支持物) on the desk.
2. You can only swim in the ________(浅的)water.It’s dangerous to swim in the deep water.
3. He can’t find his cigarette _______(打火机).
4. Children shouldn’t play with the ________(火柴).
5. Her hat _________ (相称，匹配) her T-shirt well.
6.This patient is terribly ill. You should _________(检查) him at once, Dr. Smith.
7. If there isn’t enough _______(氧气) in the air, you will feel uncomfortable.
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Keep the Candle BurningPPT，第五部分内容：Homwork
1.Do the experiment yourself again.
2.Do more experiment in your spare time to find more interesting things in science.
3. Preview Lesson 27.
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