2019年秋九年级英语上册 Unit 5 Look into Science Lesson 25 Let’s Do an Experiment导学课件 冀教版.ppt

Lesson25LetsDoanExperiment!,课前自主预习,课堂互动探究,Unit5LookintoScience,课前自主预习,Lesson25LetsDoanExperiment!,correctly,correct,method,force,实验;试验,广口瓶;罐子,倒出；倾倒,上部；上边,科学的,science,Lesson25LetsDoanExperiment!,雨衣,压力，压强；挤压,得出结论，断定，推断出,conclusion,fillwith,doanexperiment,coverwith,turnupsidedown,Lesson25LetsDoanExperiment!,takeoff,对有把握,涌出,科学方法,get,wet,theory,which,Lesson25LetsDoanExperiment!,is,correct,the,scientific,method,so,am,sure,of,Lesson25LetsDoanExperiment!,that,takes,off,enough,strong,to,conclude,Lesson25LetsDoanExperiment!,stronger,than,课堂互动探究,词汇点睛,1correctadj.正确的；恰当的,观察Letstestwhichtheoryiscorrect.让我们测验一下哪种理论是正确的。Wemustmakesurethatthingsaredonecorrectlywithoutmistakes.我们必须确保事情做得准确无误。,Lesson25LetsDoanExperiment!,探究correct的副词形式是_，意为“_”。,Lesson25LetsDoanExperiment!,拓展correct还可用作动词，意为“改正；纠正”。Canyouhelpmecorrectthemistakethatyoufind?你能帮我改正你发现的错误吗？,correctly,正确地,活学活用,12016无锡Tomysurprise,the3yearoldboycanspellallthosewords_(正确地),Lesson25LetsDoanExperiment!,correctly,2methodn.方法；办法,观察Thatscalledthescientificmethod.那被叫作科学方法。,Lesson25LetsDoanExperiment!,辨析method,way与means,Lesson25LetsDoanExperiment!,Lesson25LetsDoanExperiment!,Itsthebestmethodofworkingoutthemathsproblem.这是算出那道数学题最好的方法。Thegoodwaytokeephealthyistotakemoreexercise.保持健康的好方法就是多锻炼。Hismoneywasntearnedbyhonestmeans.他的钱来路不明。,2老师正在给我们演示一种新的书写方法。Theteacherisshowingus_,Lesson25LetsDoanExperiment!,a,new,method,of,writing,3forcen.力量v.迫使；强迫,观察Theforceoftheairkeepsthewaterinthejar.空气的力量使水留在广口瓶里。Thetruckwasforcedtostopforrepairing.那辆卡车被迫停下来修理。,Lesson25LetsDoanExperiment!,Lesson25LetsDoanExperiment!,探究(1)force用作名词时，是_(可数/不可数)名词。(2)force还可用作_词，意为“_”，常用于被动结构。force还可以接动词不定式或形容词、副词、介词短语充当补足语的复合宾语。,不可数,动,迫使，强迫,3由于战争，他们被迫离开自己的国家。They_toleavetheirowncountrybecauseofthewar.,Lesson25LetsDoanExperiment!,were,forced,句型透视,1Icoverthetopwithapieceofcardboardandholditthere.我用一张硬纸板盖住瓶口并抵住它。,Lesson25LetsDoanExperiment!,探究(1)cover在本句中为_动词，意为“覆盖”。coversth._sth.意为“用某物盖住某物”，常用被动形式：sth.becoveredwithsth.。(2)apieceof意为“一片；一块”。apieceof后面接_名词，表示数量；如果表示的数量超过“一”，则_用复数形式。谓语动词根据piece的单复数而定。Marygavetheboytwopiecesofcake.玛丽给了这个男孩两块蛋糕。,Lesson25LetsDoanExperiment!,及物,with,不可数,piece,Lesson25LetsDoanExperiment!,拓展表示不可数名词的数量时，要用“数词/冠词量词of不可数名词”结构，如aglassofwater一杯水，twobottlesofjuice两杯果汁。,活学活用,1(1)2017达州_ofthelandinthattown_coveredwithtreesandgrass.ATwofifth;isBTwofifth;areCTwofifths;isDTwofifths;are,Lesson25LetsDoanExperiment!,C,(2)2017南充Areyouthirsty?Yes,pleasegiveus_AthreebottlewaterBthreebottleofwaterCthreebottlesofwaterDthreebottlesofwaters,Lesson25LetsDoanExperiment!,C,2ThenIturnthejarupsidedownandtakemyhandoffthecardboard.然后我将广口瓶倒置并将我的手从硬纸板上拿开。,Lesson25LetsDoanExperiment!,探究(1)turnupsidedown意为“把翻转；倒过来”，相当于词组_。Turnyourbookupsidedownandrecitethetext.把你的书翻转过来并背诵那篇课文。,turnover,Lesson25LetsDoanExperiment!,(2)takeoff意为“把从拿开”。takeoff还可译为“(飞机)起飞；脱下(衣服)”。Hetookhisshoesoffandsatonthebed.他脱掉鞋，坐到了床上。Theplanetookoffanhourlate.飞机起飞晚了一个小时。,2(1)你不能颠倒事实。Youcant_thefacts_(2)2017十堰中国大飞机5月5日在上海浦东国际机场起飞。TheC919_inShanghaiPudongInternationalAirportonMay5.,Lesson25LetsDoanExperiment!,turn,upside,down,took,off,3IamsosureofmytheorythatBriancandotheexperimentoveryourheadandIknowyouwontgetwet.我对我的理论很有把握，布莱恩能在你的头上做实验，而且我知道你不会被淋湿。,Lesson25LetsDoanExperiment!,探究(1)besureof/about意为“相信；对有把握”，表示对某事(物)的看法。其后常接_词、_词或_词。Iamsureofwinningthegame.我有把握赢得这次比赛。,名,代,动名,Lesson25LetsDoanExperiment!,(2)本句中that引导的从句用来解释说明句中的名词_。Hetoldmethenewsthathisunclewouldcomebacksoon.他告诉我他叔叔很快要回来的消息。,拓展(1)besuretodosth.意为“务必做某事；一定要做某事”。(2)besure(that)意为“肯定；确定”，主句的主语必须是人。,theory,3.他不清楚她的名字。He_hername.,Lesson25LetsDoanExperiment!,isnt,sure,of,探究该结构的基本形式是“形容词/副词enoughto_”，意为“足够可以”。,4Itisstrongenoughtoholdthewater.它足够强大，可以将水托住。,Lesson25LetsDoanExperiment!,动词原形,拓展“形容词/副词enoughto”可以和“sothat”引导的结果状语从句进行同义句转换，如果是否定句，则可以和“tooto”句式进行同义句转换。,4(1)2016丹东他年龄够大了，可以上学了。(翻译句子)_(2)2016巴中改编T