新冀教版九年级英语上册第26课课件

1、welcome tomy class!made by su yapinglesson 26keep the candle burningunit 5 look into science 本节课的主题是本节课的主题是:科学实验科学实验-蜡烛在蜡烛在空气中燃烧，这是个学生特别感兴趣的实空气中燃烧，这是个学生特别感兴趣的实验，有利于激发学生学习英语的热情。在验，有利于激发学生学习英语的热情。在实际的教学活动中，我将和同学们一起动实际的教学活动中，我将和同学们一起动手做实验，并用英语描述操作过程，真正手做实验，并用英语描述操作过程，真正做到学以致用。做到学以致用。 根据根据新英语课程标准新英语课程标准

2、及教材要求，结合学及教材要求，结合学生的实际情况，我将教学目标分为以下几个方面：生的实际情况，我将教学目标分为以下几个方面：知识目标知识目标：学生要掌握本节课中出现的新单学生要掌握本节课中出现的新单 词、短语及分数的英语表达。词、短语及分数的英语表达。能力目标能力目标：培养学生听、说、读和动手操作能培养学生听、说、读和动手操作能 力。力。情感目标情感目标：培养学生学习科学的兴趣，激发学培养学生学习科学的兴趣，激发学 生学习英语的积极性，提高他们的生学习英语的积极性，提高他们的 合作交流能力。合作交流能力。 重点：重点： 依据教学目标及学生的学习依据教学目标及学生的学习能力，要学生掌握本节课新学

3、的单词、能力，要学生掌握本节课新学的单词、短语及重要句型。短语及重要句型。 难点：难点：根据英语描述，学生小组合根据英语描述，学生小组合作，动手操作实验，并讨论得出科学的作，动手操作实验，并讨论得出科学的实验结果。实验结果。 为了顺利完成教学目标、突出重点、突破难为了顺利完成教学目标、突出重点、突破难点，结合学生的认知规律，我主要采用了图片展示、点，结合学生的认知规律，我主要采用了图片展示、实物演示、合作探究等教学方法。实物演示、合作探究等教学方法。 合理安排教学过程是教学成功的关键，针对合理安排教学过程是教学成功的关键，针对学生的认知状况及本课的特点，我设计了以下几学生的认知状况及本课的特点

4、，我设计了以下几个环节：个环节：what is happening ?what is happening ?the force of the air keeps the force of the air keeps the water in the jar. the water in the jar. we have discovered that the air we have discovered that the air pressure helps the cardboard hold the pressure helps the cardboard hold the water in

5、 the jar.water in the jar.warming-upwarming-uplearning aims and important pointslearning aims1.knowledgeaims:masterthewordsandphrasesinthislesson2.abilityaims:learnhowtodescribethescienceexperiments3.emotionaims:leadsstobeinterestedinscienceresearchlearning important points:describe(描述)andexplain（解释

6、）theexperimentinenglishtoday we are going to look into science again and learn to do another experiment. what experiment will we do?keep the candle burning!a candle a candle holder a big glass jar a shallow dish with water matches oxygen what do we need?1.1. put the candle in the candle holder.put t

7、he candle in the candle holder.2. put the candle holder in the dish.2. put the candle holder in the dish.4. light the candle.4. light the candle. how do we do the experiment?观观察察领领悟悟3. fill the dish half full with water.3. fill the dish half full with water.5. let the candle burn for 5. let the cand

8、le burn for two or three minutes. two or three minutes.6. 6. carefully put the jar over the candle carefully put the jar over the candle until the top of the jar rests on the until the top of the jar rests on the dish. dish.7. look at the water 7. look at the water in the jar. in the jar. 观观察察领领悟悟fi

9、rst， put the candle in the candleholder.second , put the candle holder in the dish.third , fill the dish half full with water.fourth , light the candle.fifth ,let the candle burn for two or three minutes.sixth , carefully put the jar over the candle until the top of the jar rests on the dish.seventh

10、, look at the water in the jar. 1. what makes the candle burn? oxygen . make/let sth./sb. do 使使某物某物/某做某做.eg: let the candle _(burn) for two or three minutes. i make the student _(go) out.课内探究课内探究burnburn go go 2.why did the candle stop burning? is there any oxygen in the jar?because it has used all

11、the oxygen in the air.no ,there isnt. use up eat up drink upeg: i have _ the water in the bottle. he has _ the bread. she has _ the water. 课课 内内 探探 究究used up used up eaten upeaten updrunk up drunk up what is happening?阅读共品阅读共品listen to the tape .then read “what is listen to the tape .then read “what

12、 is happening “in the text and think about the happening “in the text and think about the following questions.following questions.1.how far did the water rise? 1.how far did the water rise? 2. why does the water fill about 2. why does the water fill about one fifth of the jar?one fifth of the jar? o

13、ne fifth. one fifth.1 12 21 15 51 13 31 14 43 34 4口口诀诀： ：分子基数，分母序，分子分子基数，分母序，分子 1 ,1 ,分母加分母加 s sthree fourths three quartersthree fourths three quartersone (a) quarter one fourthone (a) quarter one fourthone thirdone thirda (one) half a (one) half one second (one-second)one second (one-second)总结提高2.

14、 why does the water fill about one fifth of the jar?because about one fifth of the jaris made up of oxygen. 拓展延伸拓展延伸what does this experiment show about air?it proved (证明证明)that there is _ oxygen in the air.1. there are lots of matchs in the small box.2. can you let my uncle laughing?3. there is abo

15、ut onefive oxygen in the air.4. there are about twothird students in the classroom.5. i used out my money. can you lend me some?correct the mistakes.matcheslaughone-fifthtwo-thirdsup summary (1)(1)new words: match, light, burn, shallow, new words: match, light, burn, shallow, candleholder, oxygen candleholder, oxygen(2) phrases: use up, one-fifth(2) phrases: use up, one-fifth(3) sentences:(3) sentences: fill the dish half full of water. fill the dish half full of water. as the candle burns, it uses up oxygen as the candle burns, it uses up oxygen in the air. in the air.