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初中Lesson 26 Keep the Candle Burning授课ppt课件
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这是一份初中Lesson 26 Keep the Candle Burning授课ppt课件，文件包含Lesson26KeeptheCandleBurningpptx、Lesson26词汇听写wav、Lesson26课文朗读wav等3份课件配套教学资源，其中PPT共27页， 欢迎下载使用。
1 学习目标 2 新课导入3 新课讲解 4 当堂小练5 课堂小结 6 课后作业7
Curriculum wrds: regret, examinatin, pain，wake up, get dressed, get Useful expressins: Let the candle burn fr tw r three minutes.When the candle stps burning, it has used up all the xygen in the air.Functins: Master the new wrds: hlder, shallw, lighter, match,examine, Grammar: as的用法 Sentences: Because abut ne fifth f the air is made up f xygen, the water rises and fills abut ne fifth f the jar. Hw far des it rise?
D yu like ding science experiments?Why r why nt?
THINK ABOUT IT
·D yu like ding science experiments? Why r why nt?·What will happen if yu put a jar upside dwn ver a burning candle?
Can yu see the candle hlder in this picture? The candle is pink. The candle hlder is grey. The candle hlder is “hlding” the candle!
Science is s interesting! I’m sure yu’ll like this experiment!
What d yu need?·a candle·a candle hlder ·a big glass jar·a shallw dish·sme water·a lighter r matches
What d yu d?1．Put the candle in the candle hlder.2．Put the candle hlder n the dish.3．Fill the dish half full with water.4．Light the candle.5．Let the candle burn fr tw r three minutes.6．Carefully put the jar ver the candle until the tp f the jar rests n the dish.7．Examine the water in the jar. What can yu see?
What is happening?As the candle burns，it uses the xygen in the air. When the candle stps burning，it has used up all the xygen in the air. The water inside the jar rises. Hw far des the water rise? Because abut ne fifth f the air is made up f xygen，the water rises and fills abut ne fifth f the jar.
Can yu d this experiment?
Let ′s D It !
Read the lessn and fill in the blanks.
Let’s d the experiment tgether! Put the candle in the candle hlder. Put the candle hlder n the dish. Fill the dish half full with water. Light the candle with a________ r a lighter. What can yu see? The candle is burning. ________the candle burn fr tw r three minutes. Then carefully put the jar ver it until the tp f the jar rests n the dish. As the candle burns，it ________the xygen in the air.
When the candle stps________，it has used up all the xygen in the air. The water inside the jar ________ and fills abut ________ f the jar. This is because abut ne fifth f the air is made up f xygen.
Circle the crrect wrds t cmplete the sentences.
1．Dn’t (use up /push up) all f the ink. Leave sme fr me. 2．The medical team (is made f / is made up f) five experienced dctrs.3．Please fill the hle (with /in) sand and water.4．They didn’t realize their mistake (until /as) we tld them.5．My brther wasn’t (strng enugh/enugh strng) t lift the bx.
PROJECTSCIENCE？THAT’S INTERESTING!
Read abut the experiment in this lessn. With a grup f classmates，practice the experiment. D yur experiment in frnt f the class. Dn’t frget the fllwing things：
·First，describe yur experiment. ·Secnd，ask the class what they think will happen. ·Third，d the experiment. ·Finally，ask the class if the result is what they expected.
keep的用法
Language pint 1
match/mætʃ/ n.火柴，比赛 v.相称，相配
Language pints 2
eg：We need t light a match. 我们需要点一根火柴。 They beat us last time，but we hpe t win the next match. 上次他们打败了我们，但我们希望赢得下次的比赛。 The picture matches the stry. 这幅图和故事相配。
half/hɑːf/ adj.一半的 n.半； 一半
Language pints 3
half 意为“一半的”，作形容词。half an/a ＋名词，意为“个……”。eg：half an hur 半个小时 half a day 半天 half an apple 半个苹果 Given half a chance, he will succeed. 只须给他一点儿机会，他就会成功。
half f…意为“一半的……”，后接名词时，一般要在名词前加the、形容词性物主代词或指示代词等。此结构作主语时谓语动词和f后的名词保持一致。即：若f后的名词是复数则谓语动词用复数形式；若f后的名词是可数名词单数或不可数名词，则谓语动词用单数形式。
light的用法
Language pints 4
light/laɪt/ v. 点燃 eg：Will yu light the fire fr me，please? 请为我把火点燃，行吗？
until/ən'tɪl/ cnj.直到……为止
Language pints 5
eg：I’m ging t stay here until Saturday and start n Sunday. 我打算在这里一直呆到星期六，然后星期日出发。用于肯定句中，主句的谓语动词一般是延续性的。 用于否定句中，主句的谓语动词一般是非延续性的。eg：I didn’t begin the wrk until he came back. 直到他回来我才开始这项工作。
as cnj.当……时；随着 adv.如同prep.作为； 如同
Language pints 6
as可作连词，意为“随着，当……时”。eg：As time went by, the envirnment gt wrse and wrse. 随着时间的推移，环境变得越来越糟了。
辨析while，when与as
Language pints 7
辨析stp ding sth.与stp t d sth.
Language pints 8
Language pints 9
用于询问两地间的距离，答语也要用表示距离的句子。eg：—Hw far is it t yur huse frm here? —It is abut 5 minutes’ walk. ——从这儿到你家有多远？ ——大约步行5分钟的路程。
—________is it frm the village t yur farm?— Abut 10 minutes’ walk. (广东)A．Hw ften B．Hw snC．Hw lng D．Hw far
【点拨】考查疑问短语的辨析。采用逻辑推理法。hw ften多久一次；hw sn多久以后；hw lng多长；hw far多远，对距离提问。由句意“从村庄到你的农场有多远？”“大约步行10分钟的路程。”可知选D。
一、根据汉语提示完成句子
1．Please pass me a ________ (浅的) dish.2．I need sme ________ (火柴) t light the candles.3．There is nefifth ________ (氧气) in the air.4．After finishing all yur wrk，yu shuld ________ (检查) it carefully.5．We have __________ (用完) ur salt.
6．Jim ________all his mney t buy the cmputer. A．fixed up B．used up C．ate up D．Gt7．—Have yu finished the wrk? —Nt yet，but n matter hw hard it is， we’ll keep________ until we finish it. A．failed B．trying C．tried D．failing
1 学习目标 2 新课导入3 新课讲解 4 当堂小练5 课堂小结 6 课后作业7
Curriculum wrds: regret, examinatin, pain，wake up, get dressed, get Useful expressins: Let the candle burn fr tw r three minutes.When the candle stps burning, it has used up all the xygen in the air.Functins: Master the new wrds: hlder, shallw, lighter, match,examine, Grammar: as的用法 Sentences: Because abut ne fifth f the air is made up f xygen, the water rises and fills abut ne fifth f the jar. Hw far des it rise?
D yu like ding science experiments?Why r why nt?
THINK ABOUT IT
·D yu like ding science experiments? Why r why nt?·What will happen if yu put a jar upside dwn ver a burning candle?
Can yu see the candle hlder in this picture? The candle is pink. The candle hlder is grey. The candle hlder is “hlding” the candle!
Science is s interesting! I’m sure yu’ll like this experiment!
What d yu need?·a candle·a candle hlder ·a big glass jar·a shallw dish·sme water·a lighter r matches
What d yu d?1．Put the candle in the candle hlder.2．Put the candle hlder n the dish.3．Fill the dish half full with water.4．Light the candle.5．Let the candle burn fr tw r three minutes.6．Carefully put the jar ver the candle until the tp f the jar rests n the dish.7．Examine the water in the jar. What can yu see?
What is happening?As the candle burns，it uses the xygen in the air. When the candle stps burning，it has used up all the xygen in the air. The water inside the jar rises. Hw far des the water rise? Because abut ne fifth f the air is made up f xygen，the water rises and fills abut ne fifth f the jar.
Can yu d this experiment?
Let ′s D It !
Read the lessn and fill in the blanks.
Let’s d the experiment tgether! Put the candle in the candle hlder. Put the candle hlder n the dish. Fill the dish half full with water. Light the candle with a________ r a lighter. What can yu see? The candle is burning. ________the candle burn fr tw r three minutes. Then carefully put the jar ver it until the tp f the jar rests n the dish. As the candle burns，it ________the xygen in the air.
When the candle stps________，it has used up all the xygen in the air. The water inside the jar ________ and fills abut ________ f the jar. This is because abut ne fifth f the air is made up f xygen.
Circle the crrect wrds t cmplete the sentences.
1．Dn’t (use up /push up) all f the ink. Leave sme fr me. 2．The medical team (is made f / is made up f) five experienced dctrs.3．Please fill the hle (with /in) sand and water.4．They didn’t realize their mistake (until /as) we tld them.5．My brther wasn’t (strng enugh/enugh strng) t lift the bx.
PROJECTSCIENCE？THAT’S INTERESTING!
Read abut the experiment in this lessn. With a grup f classmates，practice the experiment. D yur experiment in frnt f the class. Dn’t frget the fllwing things：
·First，describe yur experiment. ·Secnd，ask the class what they think will happen. ·Third，d the experiment. ·Finally，ask the class if the result is what they expected.
keep的用法
Language pint 1
match/mætʃ/ n.火柴，比赛 v.相称，相配
Language pints 2
eg：We need t light a match. 我们需要点一根火柴。 They beat us last time，but we hpe t win the next match. 上次他们打败了我们，但我们希望赢得下次的比赛。 The picture matches the stry. 这幅图和故事相配。
half/hɑːf/ adj.一半的 n.半； 一半
Language pints 3
half 意为“一半的”，作形容词。half an/a ＋名词，意为“个……”。eg：half an hur 半个小时 half a day 半天 half an apple 半个苹果 Given half a chance, he will succeed. 只须给他一点儿机会，他就会成功。
half f…意为“一半的……”，后接名词时，一般要在名词前加the、形容词性物主代词或指示代词等。此结构作主语时谓语动词和f后的名词保持一致。即：若f后的名词是复数则谓语动词用复数形式；若f后的名词是可数名词单数或不可数名词，则谓语动词用单数形式。
light的用法
Language pints 4
light/laɪt/ v. 点燃 eg：Will yu light the fire fr me，please? 请为我把火点燃，行吗？
until/ən'tɪl/ cnj.直到……为止
Language pints 5
eg：I’m ging t stay here until Saturday and start n Sunday. 我打算在这里一直呆到星期六，然后星期日出发。用于肯定句中，主句的谓语动词一般是延续性的。 用于否定句中，主句的谓语动词一般是非延续性的。eg：I didn’t begin the wrk until he came back. 直到他回来我才开始这项工作。
as cnj.当……时；随着 adv.如同prep.作为； 如同
Language pints 6
as可作连词，意为“随着，当……时”。eg：As time went by, the envirnment gt wrse and wrse. 随着时间的推移，环境变得越来越糟了。
辨析while，when与as
Language pints 7
辨析stp ding sth.与stp t d sth.
Language pints 8
Language pints 9
用于询问两地间的距离，答语也要用表示距离的句子。eg：—Hw far is it t yur huse frm here? —It is abut 5 minutes’ walk. ——从这儿到你家有多远？ ——大约步行5分钟的路程。
—________is it frm the village t yur farm?— Abut 10 minutes’ walk. (广东)A．Hw ften B．Hw snC．Hw lng D．Hw far
【点拨】考查疑问短语的辨析。采用逻辑推理法。hw ften多久一次；hw sn多久以后；hw lng多长；hw far多远，对距离提问。由句意“从村庄到你的农场有多远？”“大约步行10分钟的路程。”可知选D。
一、根据汉语提示完成句子
1．Please pass me a ________ (浅的) dish.2．I need sme ________ (火柴) t light the candles.3．There is nefifth ________ (氧气) in the air.4．After finishing all yur wrk，yu shuld ________ (检查) it carefully.5．We have __________ (用完) ur salt.
6．Jim ________all his mney t buy the cmputer. A．fixed up B．used up C．ate up D．Gt7．—Have yu finished the wrk? —Nt yet，but n matter hw hard it is， we’ll keep________ until we finish it. A．failed B．trying C．tried D．failing
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