初中英語(yǔ)冀教版九年級(jí)Unit5LookintoScienceLesson26:KeeptheCandleBurning課題Lesson26KeeptheCandleBurning!課型New課時(shí)One教學(xué)口標(biāo)知識(shí)目標(biāo):Wordsandexpressions能力目標(biāo):Doandeent德育目標(biāo)：Lovescience教學(xué)重點(diǎn)一、重點(diǎn)詞匯match,light,burn,useup,candleholder,shallow,oakesbdo二、重點(diǎn)句型FillthedishhalffullofwaterTomakeacandleburn,youlightit教學(xué)難點(diǎn)Writeacompositiontodescribeaninterestingexperiment.教法Talk,listen,read,practice學(xué)法Talk,listen,read,practice教具tapeslides

板書設(shè)計(jì)Lesson26分?jǐn)?shù)的英語(yǔ)表達(dá)1)分?jǐn)?shù)由分子及分母兩部分構(gòu)成。用英語(yǔ)表達(dá)時(shí)，分子用基數(shù)詞，分母用序數(shù)詞。2)若分子為1,則分母的序數(shù)詞為單數(shù)形式，若分子大于1,則分母的序數(shù)詞用復(fù)數(shù)形式。3)%=one(a)half或onesecond(one-second)%=one(a)quarter或one-quarter教學(xué)教程教師活動(dòng)學(xué)生活動(dòng)Step1.Greetings.設(shè)計(jì)意圖：讓學(xué)生做好上課的準(zhǔn)備。Step2.Thinkaboutit.1.Doyouthinkscienceisinteresting?Whyorwhynot?Trytoanswerthetwoquestions.EnjoytheEnjoytheprocessofthisexperiment.設(shè)計(jì)意圖：與學(xué)生進(jìn)行一個(gè)簡(jiǎn)短的對(duì)話，進(jìn)入本課主題。Step3.Showstudentsthepicturestoletthemknowtheprocessofthisexperiment.設(shè)計(jì)意圖：通過展示圖片讓學(xué)生理解整個(gè)實(shí)驗(yàn)過程。Step4.ReadandfillintheblanksReadthetextandfillintheblanks:Readthetextaloudandfillintheblanks.Let'sdotheexperimenttogether!Putthecandleinthecandleholder.Putthecandleholderonthedish.Fillthedishhalffullwithwater.Lightthecandlewithaoralighter.Whatcanyousee?Thecandleisburning.thecandleburnfortwoorthreeminutes.Thencarefullyputthejaroverituntilthetopofthejarrestsonthedish.Asthecandleburns,ittheoxygenintheair.Whenthecandlestops,ithasusedupalltheoxygenintheair.Thewaterinsidethejarandfillsaboutofthejar.ThisisbecauseReadthetextaloudandfillintheblanks.Letthestudentswritetheimportantlanguagedown.Observetheexperiment,andtrytodescribetheexperimentinEnglish.Letthestudentswritetheimportantlanguagedown.Observetheexperiment,andtrytodescribetheexperimentinEnglish.aboutonefifthoftheairismadeupofoxygen.設(shè)計(jì)意圖：讓學(xué)生帶著任務(wù)讀課文。Step5.LanguagePoints1.分?jǐn)?shù)的表達(dá)1)分?jǐn)?shù)由分子及分母兩部分構(gòu)成。用英語(yǔ)表達(dá)時(shí)，分子用基數(shù)詞，分母用序數(shù)詞。2)若分子為1,則分母的序數(shù)詞為單數(shù)形式，若分子大于1,則分母的序數(shù)詞用復(fù)數(shù)形式。%=one(a)half或onesecond(one-second)%=one(a)quarter或one-quarter設(shè)計(jì)意圖：通過教師講解讓學(xué)生對(duì)重點(diǎn)知識(shí)更加熟悉。Step6.Doane“inthewater?First,putsomesaltintotheglass.Then,addsomewater.Next,mixthesaltandthewatertogether.Finally,puttheeggintotheglass.設(shè)計(jì)意圖：通過給學(xué)生做一個(gè)有趣的實(shí)驗(yàn)，一方面激發(fā)學(xué)生學(xué)習(xí)英語(yǔ)的興趣，另一方面讓學(xué)生學(xué)習(xí)用英語(yǔ)來描述一個(gè)實(shí)驗(yàn)。

教學(xué)教程教師活動(dòng)學(xué)生活動(dòng)矯正反饋Step7.Eeexercisesaboutthekeypoints.設(shè)計(jì)意圖：通過練習(xí)讓學(xué)生鞏固本課的重點(diǎn)知識(shí)。Step8.Homework請(qǐng)根據(jù)課文內(nèi)容,以“AnInterestingExperiment,,為題寫一篇小作文。Studentsdosomeexercises.課堂測(cè)試題一、改錯(cuò)題。Therearelotsofmatchsinthesmallboyunclelaughing?You'reveryill,soyoumuststoptosmoke.Fillthedishhalffillofwater.Thereisaboutone-fiveoxygenintheair.Thereareabouttwo-thirdstudentsintheclassroom.7.Iusedoutmymoney.Canyoulendmesome?二、用所給單詞的正確形式填空。

Youareverytired.You'dbetterstop(have)arest.Whatdoyouusetomakeacandle(burn)?Youshouldputthejaroverthecandle(careful).What(observe)canyoumake?Pleasecuttheappleinto(half).He(light)acandleandtheroomwas