冀教版九年級英語上冊 （Keep the Candle Burning）Look into Science!課件教學(xué)

Lesson26

KeeptheCandleBurning

ThinkAboutIt!1.Doyoulikedoingscienceexperiments?Whyorwhynot?2.Whatwillhappenifyouputajarupsidedownoveraburningcandle?Newwordsmatchn.火柴holdern.支撐者shallowadj.淺的

lightern.打火機(jī)

examinev.檢查oxygenn.氧氣LanguagePoints1.Lightthecandle.點亮蠟燭。light此處用作動詞，意為“點亮”。還可作名詞，意為“光；燈”。作形容詞，意為“輕的，淺的，明亮的”。Iwantaroomwithgoodlight.我要一個采光好的房間。（名詞）Mysweaterislightblue.我的毛衣是淺藍(lán)色的。（形容詞）Hesatdownandlitacigarette.他坐下點了一只香煙。（動詞）2.Becauseaboutonefifthoftheairismadeupofoxygen,thewaterrisesandfillsaboutonefifthofthejar.因為大約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)onefifth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。Twothirdsoftheapplesarered.三分之二的蘋果是紅色的。2)bemadeupof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。Theclubismadeupoftwelvegirls.這個俱樂部是由12個女孩組成的。根據(jù)句意及提示補(bǔ)全單詞。1.Pleaseputthecandleinthecandleh______.2.Thebowlistoos______tofilltoomuchwater.3.Howmany________(火柴)arethereinthebox?4.Youmust_______(檢查)yourhomeworkafteryoufinishit.PracticeolderhallowmatchesexamineLesson26KeeptheCandleBurning

Thinkaboutit!Doyouthinkscienceisinteresting?Whyorwhynot?2.NameoneortwofamousChinesescientists.Whatdoyouknowaboutthem?Todaywearegoingtolookintoscienceagainandlearntodoanotherexperiment.Whatexperimentwillwedo?KeeptheCandleBurning!1.Whatdoweneed?acandleabigglassjaracandleholderashallowdishwithwatermatchesamatch2.Howdowedotheexperiment?3.Whatishappening?Languagepoints1)分?jǐn)?shù)由分子及分母兩部分構(gòu)成。用英語表達(dá)時，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分?jǐn)?shù)的英語表達(dá)二分之一三分之一四分之一四分之三五分之二十分之九口訣:分子基，分母序。分子﹥1，分母加s。a/onehalf(onesecond)one-thirdonequarterthree-fourthsthreequarterstwo-fifthsnine-tenthsTherearelotsofmatchsinthesmallbox.Canyouletmyunclelaughing?You’reveryill,soyoumuststoptosmoke.Fillthedishhalffillofwater.Thereisaboutone–fiveoxygenintheair.Thereareabouttwo–thirdstudentsintheclassroom.7.Iusedoutmymoney.Canyoulendmesome?Correctthemistakes.matcheslaughsmokingfullone-fifthtwo-thirdsup用所給單詞的正確形式填空。Youareverytired.You’dbetterstop______(have)arest.2.Whatdoyouusetomakeacandle_____(burn)?3.Youshouldputthejaroverthecandle________(careful).4.What____________(observe)canyoumake?tohaveburncarefullyobservation(s)5.Pleasecuttheappleinto______(half).6.He_________(light)acandleandtheroomwasbright.7.______(two),askthestudentstoguesswhatwillhappen.8.Hekeptthecandle_______(burn)fortwohours.9.It’stime______(play)basketball.10.Whatabout_____(go)forawalk?halveslighted/litSecondburningtoplaygoingHomework請根據(jù)課文內(nèi)容,以“AnInterestingExperiment”為題寫一篇小作文。Cananegg“swim”inthewater?1.Whatdoweneed?Doanexperiment：First,_________________________.putsomesaltintotheglassThen,_______________.addsomewaternext,______________________________.mixthesaltandthewatertogetherFinall