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Lesson25 LetsDoanExperiment!Ⅰ.根据课文内容,完成下面表格单词
1.正确的________
2.方法________3.力量;迫使________
4.experiment________5.upside________
6.pour________7.scientific________
8.raincoat________9.pressure________
10.conclude________11.jar__________短语
1.把……翻转;倒过来______________2.涌出______________3.科学方法______________4.把……拿开______________5.用……装满……______________6.用……盖住……______________7.确信……______________8.做一个实验______________句型
1.我用一块纸板将它的顶部盖上并把它按在那里I________thetop________apieceofcardboardand________itthere.2.然后我将罐子倒置并把我的手从纸板上拿开ThenI________thejar________________and________myhand________thecardboard.3.我如此确信我的理论以至于布莱恩可以在你的头上做实验Iam________________________mytheory________Briancandotheexperimentoveryourhead.4.空气的力量使罐子里的水流不出来________________________theair________thewater________thejar.5.它足够强大可以托住水Itis________________________________thewater.6.我总结出,空气比我想象的更强大I________thatairis________________Ithought.Ⅱ.词汇练习A根据句意及所给提示,写出单词的正确形式1.Doyouoftendo________experimentinyourscienceclass2.Tokeephealthyweshouldexerciseina________scienceway.3.Hec________thattheplanwasnotworkable可行的.4.Whocantellmethec________answertothequestion5.Whenitrainsyoucanputonyourr________.Youwillnoteasilygetwet.B用方框中所给单词或短语的适当形式填空putonstrongenoughpouroutpressurebeready1.Shesnot____________togowalkingupmountains.2.Everybody__________fortodaystest.3.Highblood____________killsmanypeople.4.Weshouldtakeactiontostopthefactories__________wastewater.5.Youdbetter____________yourcoat.Itsverycoldoutside.Ⅲ.单项填空
1.________thecupupsidedownandyoucanfindwhereitismade.A.TakeB.TurnC.BringD.Hold
2.Coverthebottle________alidorthewaterwilleout.A.withB.forC.toD.by
3.Heissure________histheory.Nobodycanchangehismind.A.ofB.atC.withD.for
4.—Ithinkitsnecessarytolearnhowtoworkingroups.—Iquiteagree.Sometimesitseven________thangrades.A.lessimportantB.moreimportantC.theleastimportantD.themostimportant
5.MumIamoldenough________myself.A.lookafterB.looksafterC.tolookafterD.lookingafter
6.Ohmyboy!Itsraininghardoutside.________yourraincoat.A.WearB.DressC.PutonD.Putup
7.Youcanworkoutthemathsexerciseintwodifferent__________.A.plansB.methodsC.answersD.questions
8.—AterriblesmellTed!—SorryMum.Ill________mysocksandputtheminthewasher.A.putoffB.shutoffC.getoffD.takeoffⅣ.句型练习A连词成句将所给词语连成句子,标点已给出要求符合语法,语句通顺,大小写正确,词语不得重复使用1.havewhatyoudiscovered________________________________________________________________________2.isjarwiththewaterfilled________________________________________________________________________.3.cakeoffyourtakethehands________________________________________________________________________.4.windstrongerthanIthethoughtis________________________________________________________________________.5.excitingwewhatexperimenthadan________________________________________________________________________!B句型转换,每空一词1.Theboxisfilledwithclothes.改为同义句Thebox________________________clothes.
2.Ibelieve.Heisnotright.合并为一句I________________heisright.3.Weshouldcover__the__table__with__paperfirst.对画线部分提问________________wedofirst4.Takeoffyourcoatplease.改为否定句________________________yourcoatplease.
5.Iam
1.67metrestall.Sheis
1.69metrestall.合并为一句Sheisalittle________________me.Ⅴ.词语运用根据短文内容及所给提示,在文中的空白处填写一个正确的单词Todaywedid
1.________experiment.Itwasinteresting.FirstI
2.________fillajarwithwater.Icoveredthetop
3.________apieceofcardboardand
4.________holditthere.ThenIturnedthejarupsidedownandtookmyhand
5.o________thecardboard.
6.________mysurprisethewater
7.s________inthejar.Everyonefelt
8.________amaze.Why
9.________theforceoftheairisstrongenough
10.________keepthewaterinsidethejar.Ⅵ.完形填空Thebestthingtostartyourdayisagoodbreakfast.Therearedifferent__1__ofbreakfastsaroundtheworld.“Eatbreakfastlikeakinglunchlikeaprinceanddinnerlikeapauper穷人.”__2__theoldsayingtellsusbreakfastisthemostimportantmealoftheday.Itgivesusenergyafteralongnight__3__food.Ifpeopledonthavebreakfastinthemorningtheywillfeeltiredandgetangryeasily.Breakfasthelpschildrenstaymorefocusedinschool.Astudyshowedthatchildrenwhoeatbreakfastregularlyscore__4__inmostsubjects.Breakfastisalsoimportantforweightloss.Ifyouhaveabalancedbreakfastyouwilleat__5__throughouttheday.A__6__andbalancedbreakfastshouldincludesomeprotein蛋白质likeeggsmilkoralittlemeatwhichmakesyouenergeticallday.Carbohydrates含碳水化合物的食物likericeorbreadcankeepyouactive.Vegetablesandfruits__7__thevitaminsthathumansneed.__8__,inChinabreakfastisdifferentfromregiontoregion.Porridgewithpickles咸菜baozinoodlessoybeanmilkandyoutiaoaremonthroughoutthe__9__country.AlthoughWesternculturehasinfluencedChinaalotmostpeoplestill__10__traditionalChinesebreakfast.Theythinkthatporridgeandnoodlesarenotonlyeasilydigested消化butalsocanprovideenoughenergyinthemorning.
1.A.waysB.typesC.rulesD.methods
2.A.SoB.ThoughC.AsD.When
3.A.withoutB.withC.forD.of
4.A.lowerB.lessC.higherD.more
5.A.lessB.fewerC.moreD.much
6.A.experiencedB.healthyC.excitedD.different
7.A.hasB.haveC.isD.are
8.A.ThereforeB.ThusC.BecauseD.However
9.A.allB.oneC.wholeD.total
10.A.dislikeB.knowC.wantD.preferLesson25 LetsDoanExperiment! 素材一 新课导入设计实验导入力学小实验听话的火柴Takeamatch.CutthematchheadoffthewoodenstickwithaknifeandusePlasticinetomakeanewhead.Thenputitintoabottleofwateradjustthesizeandtheweightoftheheaduntilthematchcanmakeverticalfloatinginthewater.Note:ThebottleshouldbequitefullCoverthemouthofthebottletightlywithyourthumb.Note:NoairbubbleshouldbefoundbetweenyourthumbandthewaterPushyourthumbdownandyouwillseethematchruntothebottomofthebottleinthewater;loosenyourthumbalittleandthematchwillgoupagain…取一根木梗火柴,将火柴头用刀削掉并用橡皮泥做一个新火柴头然后将火柴置于一瓶水中,调节橡皮泥的大小及重量,直到火柴能竖直悬浮于水中注意瓶中的水要十分满用拇指紧按住瓶口注意拇指与水之间不应该有气泡将拇指用力下压,你会看到火柴就沉入水底;减轻拇指的压力,火柴又从水底徐徐上升总结这是一个简单的沉浮实验木梗火柴是多孔的,其中吸附着一定量的空气,随着瓶口拇指作用于水上的压力的改变,火柴中吸附的空气体积也随着增大或减小,使火柴的密度减小或增大,从而在水中出现浮、沉的变化 素材二 课堂活动案例活动一三人一组上台表演课文内容活动二让学生准备实验器材,亲自做本课实验,培养学生对自然科学的兴趣 素材三 新课教学方法1.教学方法1情景教学法教师可按照课文展示的实验步骤,通过多媒体用英文展示实验过程并且指导学生做实验2合作学习法
①让学生分组,每个小组同时动手演示实验的每个步骤
②学生分角色表演对话3任务型教学法布置任务,让学生们总结实验的主要步骤以及各个步骤中的主要语句2.学习方法1实验学习法让学生对本课内容进行归纳,理清步骤,按照实验步骤做实验
①Fillthejarwithwater.
②Coverthetopwithapieceofcardboard.
③Turnthejarupsidedown.2体裁变换学习法将本课的内容改写为一篇小故事,叙述实验过程OnedayBriansuggestedtodoanexperiment…更多备课资源word版电子教案、匹配的课件,详见云资源教师详解详析Lesson25 LetsDoanExperiment!Ⅰ.单词
1.correct
2.method
3.force4.实验;试验
5.上部;上边6.倒出;倾倒
7.科学的
8.雨衣 9.压力,压强;挤压 10.得出结论;断定;推断出 11.广口瓶;罐子短语
1.turn…upsidedown
2.pourout3.scientificmethod
4.take…off5.fill…with
6.cover…with7.besureof8.doanexperiment句型
1.cover;with;hold2.turn;upsidedown;take;off3.sosureof;that4.Theforceof;keeps;in5.strongenoughtohold6.conclude;strongerthanⅡ.A
1.experiments
2.scientific 3.concluded
4.correct
5.raincoatB
1.strongenough
2.isready3.pressure
4.pouringout
5.putonⅢ.
1.B
2.A
3.A
4.B
5.C
6.C
7.B 8.D putoff意为“推迟”;shutoff意为“关闭”;getoff意为“下车”;takeoff意为“脱掉;起飞”根据“Aterriblesmell”可知是“脱掉袜子”,故选DⅣ.A
1.Whathaveyoudiscovered2.Thejarisfilledwithwater
3.Takeyourhandsoffthecake4.ThewindisstrongerthanIthought5.WhatanexcitingexperimentwehadB
1.isfullof
2.dontbelieve 3.Whatshould
4.Donttakeoff 5.tallerthanⅤ.
1.an
2.filled
3.with
4.held
5.off6.To
7.stayed
8.amazing
9.Because10.tokeepⅥ.1—5 BCACA 6—10 BBDCD。