新冀教版九年級英語上冊第26課課件

1、welcome tomy class!made by su yapinglesson 26keep the candle burningunit 5 look into science 本節(jié)課的主題是本節(jié)課的主題是:科學(xué)實驗科學(xué)實驗-蠟燭在蠟燭在空氣中燃燒，這是個學(xué)生特別感興趣的實空氣中燃燒，這是個學(xué)生特別感興趣的實驗，有利于激發(fā)學(xué)生學(xué)習(xí)英語的熱情。在驗，有利于激發(fā)學(xué)生學(xué)習(xí)英語的熱情。在實際的教學(xué)活動中，我將和同學(xué)們一起動實際的教學(xué)活動中，我將和同學(xué)們一起動手做實驗，并用英語描述操作過程，真正手做實驗，并用英語描述操作過程，真正做到學(xué)以致用。做到學(xué)以致用。 根據(jù)根據(jù)新英語課程標(biāo)準(zhǔn)新英語課程標(biāo)準(zhǔn)

2、及教材要求，結(jié)合學(xué)及教材要求，結(jié)合學(xué)生的實際情況，我將教學(xué)目標(biāo)分為以下幾個方面：生的實際情況，我將教學(xué)目標(biāo)分為以下幾個方面：知識目標(biāo)知識目標(biāo)：學(xué)生要掌握本節(jié)課中出現(xiàn)的新單學(xué)生要掌握本節(jié)課中出現(xiàn)的新單 詞、短語及分?jǐn)?shù)的英語表達。詞、短語及分?jǐn)?shù)的英語表達。能力目標(biāo)能力目標(biāo)：培養(yǎng)學(xué)生聽、說、讀和動手操作能培養(yǎng)學(xué)生聽、說、讀和動手操作能 力。力。情感目標(biāo)情感目標(biāo)：培養(yǎng)學(xué)生學(xué)習(xí)科學(xué)的興趣，激發(fā)學(xué)培養(yǎng)學(xué)生學(xué)習(xí)科學(xué)的興趣，激發(fā)學(xué) 生學(xué)習(xí)英語的積極性，提高他們的生學(xué)習(xí)英語的積極性，提高他們的 合作交流能力。合作交流能力。 重點：重點： 依據(jù)教學(xué)目標(biāo)及學(xué)生的學(xué)習(xí)依據(jù)教學(xué)目標(biāo)及學(xué)生的學(xué)習(xí)能力，要學(xué)生掌握本節(jié)課新學(xué)

3、的單詞、能力，要學(xué)生掌握本節(jié)課新學(xué)的單詞、短語及重要句型。短語及重要句型。 難點：難點：根據(jù)英語描述，學(xué)生小組合根據(jù)英語描述，學(xué)生小組合作，動手操作實驗，并討論得出科學(xué)的作，動手操作實驗，并討論得出科學(xué)的實驗結(jié)果。實驗結(jié)果。 為了順利完成教學(xué)目標(biāo)、突出重點、突破難為了順利完成教學(xué)目標(biāo)、突出重點、突破難點，結(jié)合學(xué)生的認(rèn)知規(guī)律，我主要采用了圖片展示、點，結(jié)合學(xué)生的認(rèn)知規(guī)律，我主要采用了圖片展示、實物演示、合作探究等教學(xué)方法。實物演示、合作探究等教學(xué)方法。 合理安排教學(xué)過程是教學(xué)成功的關(guān)鍵，針對合理安排教學(xué)過程是教學(xué)成功的關(guān)鍵，針對學(xué)生的認(rèn)知狀況及本課的特點，我設(shè)計了以下幾學(xué)生的認(rèn)知狀況及本課的特點

4、，我設(shè)計了以下幾個環(huán)節(jié)：個環(huán)節(jié)：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（解釋

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?觀觀察察領(lǐng)領(lǐng)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. 觀觀察察領(lǐng)領(lǐng)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.課內(nèi)探究課內(nèi)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. 課課 內(nèi)內(nèi) 探探 究究used up used up eaten upeaten updrunk up drunk up what is happening?閱讀共品閱讀共品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口口訣訣： ：分子基數(shù)，分母序，分子分子基數(shù)，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)總結(jié)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 (證明證明)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.