冀教版九年级英语上册 （Keep the Candle Burning）Look into Science!新课件

Lesson26KeeptheCandleBurning

Thinkaboutit!Doyouthinkscienceisinteresting?Whyorwhynot?2.NameoneortwofamousChinesescientists.Whatdoyouknowaboutthem?Todaywearegoingtolookintoscienceagainandlearntodoanotherexperiment.Whatexperimentwillwedo?KeeptheCandleBurning!1.Whatdoweneed?acandleabigglassjaracandleholderashallowdishwithwatermatchesamatch2.Howdowedotheexperiment?3.Whatishappening?Languagepoints1)分数由分子及分母两部分构成。用英语表达时，分子用基数词，分母用序数词。2)若分子为1，则分母的序数词为单数形式，若分子大于1，则分母的序数词用复数形式。

½＝one(a)half或onesecond(one-second)¼=one(a)quarter或one-quarter分数的英语表达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诀: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用所给单词的正确形式填空。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请根据课文内容,以“AnInterestingExperiment”为题写一篇小作文。Cananegg“swim”inthewater?1.Whatdoweneed?Doanexperiment：First,_________________________.putsomesaltintotheglassThen,_______________.addsomewaternext,______________________________.mixthesaltandthewatertogetherFinally,______________________.puttheeggintotheglassTheeggcan’ttouchthebottomoftheglassanditswimsinthewater.3.Whatishappening?4.Why?盐水的密度变大，鸡蛋的浮力大于重力。Lesson25

Let’sDoanExperiment

学习目标：A.

掌握本课重点词汇experimentjarupside

scientificpourcorrectmethodforcepressureconclude掌握本课重点句子1.Ifillajarwithwater.2.I’msosureofmytheorythat…3.Icoverthetopwithapieceofcardboardandholditthere.4.Iturnthejarupsidedown.

根据句意及汉语提示完成单词

1.Don’tturntheplate________(上边)down,John.2.Youranswerisn’t_________(正确的).3.We’llsolvetheproblemby_______(力量)ifnecessary.4.Hehasanew________(方法)ofteachingEnglish.5.Let’s________(倒入)themilkintotheblender.practiceupsidecorrectforcemethodpour1.WhydoesDannysaytheyshoulddothisexperimentoutside?BecauseDannythinksthefloorwillgetwet.

2.What’sBrain’stheory?

Brianissurethefloorwon’tgetwet.QUESTIONS

Finishofftheseexercises.1.用……把……装满

______________2.用……把……盖住

______________3.我(不)确信……_________________4.把……移开

________________5.把……翻转_______________________________6.getwet__________7.doanexperiment

__________8.apieceofcardboard______________9.inside（反义词）________10.theory（复数）_____11.careful(副词）_______12.science(形容词）______fill…with…cover…with…Iam(not)sure…take…offturn…upsidedown变湿做一个实验一块硬纸板outsidetheoriescarefullyscientific一、Ifillajarwithwater.我用水把瓶子装满。

fill…with…

用……装满……(主语是人)

befilledwith…/befullof…

(主语是物或容器)同义句转换。1.Theroomsarefullof

thestudentsnow.Therooms_______________thestudentsnow.2.Mypocketisfilledwiththemoney.Mypocket_______________themoney.

选择。3.Canyou______thebox_______books?

()

Afill,withBfull,withCfilled,withDfull,in4.Thechild_____allthebowls______water.()Afill,withBfills,withCisfull,withDisfilled,with

arefilledwithIsfullofAB学以致用二.Icoverthetopwithapieceofcardboardandholditthere.我用一张硬纸板盖住顶部，把它举在那里。

cover…with…

用……覆盖……becoveredwith

(被动语态）1.我把纸板盖在了广口瓶上。

Icoveredthejarwiththecardboard.2.操场被雪覆盖了。

Theplaygroundiscoveredwithsnow.三.Iturnthejarupsidedown.

我把广口瓶倒置。turn…upsidedown

的意思是“倒置，翻转”.Youcanturntheglassupsidedown.

你可以把玻璃杯倒过来。WecanturnDannyupsidedown.

我们可以把Danny倒过来。四、Iamsosureofmytheorythat…我对我的理论有把握

besureof对…有把握,确信.后跟名词，代词，动名词

besure/benotsure

后可接句子，

完成下列各题。1.他确信会成功。He_________success.2.我确信他会来。_____________thatshewillcomehere.3.I’msure_________myanswer.（）AofBwithCatDinI’msureAissureofPRACTISE:..

⒈He____thestockings____Christmaspresents.（用…装满）⒉Pleasepassmeabottle___water.A.fullwithB.filledof

C.fillingwithD.fullof⒊

我的妈妈正在把箱子倒过来。

Mymotheristurningthebox__________（倒着）.⒋我弟弟用一块玻璃盖住了那个杯子。

Mybrother______theg