《Keep the Candle Burning》Look into Science! PPT免費(fèi)課件
第一部分內(nèi)容：Think About It!
1.Do you like doing science experiments? Why or why not?
2.What will happen if you put a jar upside down over a burning candle?
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Keep the Candle BurningPPT，第二部分內(nèi)容：New words
match n. 火柴
holder n. 支撐者
shallow adj. 淺的
lighter n. 打火機(jī)
examine v. 檢查
oxygen n. 氧氣
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Keep the Candle BurningPPT，第三部分內(nèi)容：Listening Task:
true or false.
( ) 1. The experiment needs a candle and matches.
( ) 2. We need to put water in a bowl.
( ) 3. The experiment proves the air has one fifth of oxygen.
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Keep the Candle BurningPPT，第四部分內(nèi)容：Language Points
1. Light the candle. 點(diǎn)亮蠟燭。
light此處用作動詞，意為“點(diǎn)亮”。還可作名詞，意為“光；燈”。作形容詞，意為“輕的，淺的，明亮的”。
I want a room with good light. 我要一個采光好的房間。（名詞）
My sweater is light blue. 我的毛衣是淺藍(lán)色的。（形容詞）
He sat down and lit a cigarette. 他坐下點(diǎn)了一只香煙。（動詞）
2. Because about one fifth of the air is made up of oxygen, the water rises and fills about one fifth of the jar. 因?yàn)榇蠹s五分之一的空氣是由氧氣組成的，水上升填充了大約廣口瓶的五分之一。
1) one fifth意為“五分之一”。英語中表示分?jǐn)?shù)時，分子用基數(shù)詞，分母用序數(shù)詞；分子與分母間的連字符可加可不加。若分子大于1，分母則加-s。
Two thirds of the apples are red. 三分之二的蘋果是紅色的。
2) be made up of意為“由……組成”，of后可接人也可接物，指某物或組織的結(jié)構(gòu)成分。
The club is made up of twelve girls. 這個俱樂部是由12個女孩組成的。
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Keep the Candle BurningPPT，第五部分內(nèi)容：Practice
根據(jù)句意及提示補(bǔ)全單詞。
1. Please put the candle in the candle h______.
2. The bowl is too s______ to fill too much water.
3. How many ________ (火柴) are there in the box?
4. You must _______ (檢查) your homework after you finish it.
關(guān)鍵詞：冀教版九年級上冊英語PPT課件免費(fèi)下載，Keep the Candle BurningPPT下載，Look into Science!PPT下載，.PPT格式；
