Lesson 25 Let's Do an Experiment!.docx

1.esson251.et'sDoanExperiment!I.依据课文内容完成下面表格单词I.正确的2.方法3力气：迫使4.cxpcrimcnt5upside6.pour7scientific8.rainooat9pressureIOxoncludeIljarI.把翻转：倒过来2浦出3科学方法4把拿开5用”装满”6用维住”7确信8做一个试脸句型1 .我用一块纸板将它的顶部筋上并把它按在那里，Ithetopapieceofcardboardanditthere.2 然后我将球了倒置并把我的r从纸板上拿开ThenIIhejarandmyhandthecardboard.3我如此确信我的理论以至于布莱恩可以在你的头上做试验IammytheoryBriancand«theexperimentoveryourhead.4空气的力气使地子里的水流不出米-theairthewaterthejar.5它足够强大可以托住水。Itisthewater.6我总结出空气比我想处的更强大IthatairisIthought.H.词汇练习（八）依据句意及所绘提示，写出单词的正确形式“IDoyouoftendo(experiment)inyourscienceclass?2 Tk>keepheallhy.weshouldexerciseina(science)way.3 -Hcc(hattheplanwasno<WOrkablC(可行的).4 Whocantellmethecanswer(othequestion?5 Wheni(rains,youcanputonyourr.Ybwillnoteasilygetwee.IB)用方框中所给单诃或短谱的适当影式填空。puton.stngenough,PoUrOU1.pressure,bereadyIShe'snot(ogowalkingupmountains.2 -Everybodyfortoday'slest.3 Highhkxikillsmanypeople.4 WcshouldtakeactiontostopIhCfactorieswastewaler.5 You'dbelteryourcoat,h'sverycoldoutside.In,单项填空6 )1.thecupupsidedown,andyouCanfindwhereitismade.7 TakeB.TumCBringD.Hold8 )2.Cover(hebottlealid.orthewaterwillcomeout.A.withB.forC.IUD.by()3.Heissurehistheory.NObOdycanchangehismind.AofB.atC.withD.for()4.-1thinkil,snecessarytolearnhowtoworkingroups.Iquiteagree.Sonwtiincsit'sevenIhangrades.AlessimportantBmoreimo11antC-theleastimportantDthemostimportant()5.Mum.Iamoldctwghmyself.AlookafterB.100kSHnCrCtolookafterD.100kingaftcr()6.Oh.rnyboy!It'sraininghardoutside.yourraincoat.A.WearB.Dress( .PutonD.Pinup( )7.Ybcanworkout(heInalh$exercisein(wodiflevnt.plansB.methodsCanswersD.questions( )8.Aterriblesmell,Ted!SonyMum.i'llnysocksandput(heminthewasher.( putoffB.shutoffCgeloffD.takeoffN.句型练习（八）连词成句(将所给词语连成句子标点已给出要求符合语法，语句通顺,大小写正确，词语不得重或运HD1 have,what,you.discovered2 is.jar.with.the.water,filled3 cake.Oflyour.lake.he.hands4 wind,stronger,than.1.the.thought,is5 exciting,we.wtu.expei11)ent.had.anI(B)句型转换每空一词ITheboxisfilledwihclo<hes.(>I11J义句)ThCboxckHhcs.2.1believe.Hcisnotrighl.(合并为,句)Iheisright.3 Weshouldcover(heIdbIeWilhPaPerfirsl(对画i部分提同)wcdofirst?4 -Takeoffyourcoat.PlCaJiC.(改为否定句)yourcoat,please.5.1a111.67metrestall.Sheis1.69metrestall.(合并为一句)Sheisalittleme.V词语运用依据短文内在及所给提示在文中的空白处填写一个正确的单词Todaywedid1.experiment.1(wasinicresling.First.I2.(ftli>ajarwithwater.1coveredthetop3.apieceofcardboardand4.(hold)itthere.Then1turnedthejarupsidedownandtookmyhand5.otheCardboard.6.mysurprise,thewater7,sinIhejar.Everyonefeh8.(amaze).Why?9.theforceoftheairisstrongCrKHlgh10.(keep)thewalerinsidethejar.V1.完形填空Thebestthingtostartyour(layisagoodbreakfast.Therearcdiflrcntofbreakfastsaultheworfd.“Eatbreakfastlikeaking,lunchlikeaprinceanddinnerlikeaPMiPeH穷人>"_2_IhColdsayingtellsusbreakfastisthemostimpcrtantmealoftheday.Itgivesusenergyafteralongnight3food.Ifpeopledon,thavebreakfas(inthemorning*(heywillfeetiredandgetangryeasily.Breakfasthelpschildrenslay>refocusedinschool.Astudyshowed(hatchildrenwhoeatbreakfastregularlyscore4inmostsubjects.BrcakfaMisalsoimporanforweightloss.Ifyouhaveabalancedbreakfast,youwilleat5throughout(heday.AandbalancedbreakfastshouldincludesomePrOUin(蛋白侦)likeegs.milkoralittlemeat,whichmakesyouenergetical!day.CarbchydnHCS(含暖水化合物的食物)likericeorbreadcankeepyouactive.Vegetablesandfrits7(hevitaminsthathumansneed.8inChina,breakfastisdi伟eremfromregion(oregion.PorridgewithPiCkle$(咸菜，baozi,noodles,soybeanmilkandyoutiaoarcCQmmOnthroughoutthe9country.AlthoughWesternculturehasinfluencedChinaalol,mostpeoplestillIOtraditionalChinesebreakfast.TheythinkthatPOrridgeandnoodlesarenotonlyeasilydiges(ed(i11ft),butalsocanxovideenoughenergyin(hemorning.()1.A.waysB.typesC.rulcsD.mc<hods()2.A.SoB.ThoughC.AsD.When)3.A.withoutB.withC.fbrD.of)4.lowerB.lessC.higherD.norc)5.A.lcssB.fewerC.moreD.mch)6.experiencedB.heahhyCxxciledDJiffercnt)7.A.hasB.haveC.isD.are)8ATheitfbreB.ThusC-BecauscD.Howevr)9.A.alIB.oneC.wholcD.t<xal)IO.A.dislikeB.knowC.wanlD.prcfer1.esson251.ct,sDoanExperiment!素材-新深导入设计试验导入力学小试骏：听话的火柴Takeamatch.Cutthematchheadoffthewoodenstickwithaknife,andusePlasticinetomakeanewhead.ThenPUliti11oabotleofwater,adjustIhesizeandtheweightofIheheaduntilthematchcanmakeverticalfl>atinginthewater.(N<e:Theb<tleshouldbequitefull)Coverthemouthofthebo<tlctightlywithyourthumb.(Note:NoairbubbleshouldbefoundbetweenyourIhumbandthewater)Pushyourthumbdown,andyouwillseethematchrun(othebottomof(hebouleinthewalerloosenyourthumbalittle,andIbematchwillgoupagain-取根木梗火柴，将火柒头用刀削掉并用橡皮泥做一个新火柴头，然后将火柴讹于,版水中，调整橡皮泥的大小及丈量，直到火柴能竖直悬浮于水中。(倒息：瓶中的水要非常满用脚指紧按住瓶口。(留意：拇指与水之间不应当有气泡)符樨指用力下压你会存到火柴就沉入水底：然轻拇指的压力火柴又从水底缓缓上升总结：这是一个简油的沉浮试验木便火柴是多孔的，其中吸附着肯定累的空气，随者瓶Il树指作用于水上的压力的变更，火柒中吸冏的空气体枳也随着增大或减小，使火柒的密度减小或增大，从而在水中出现浮'沉的变更。素材二课堂活动案例活动一三人一组上台表演课文内容。活动二让学生打算试验器材亲自救木课试验,培育学生对自然科学的爱好”景财三新深教学方法I教学方法(1)情景教学法：老师可依据课文展示的试蛤步骤，通过多媒体用英文展示试验过程并旦指导学生整试脸。(2)合作学习法：让学生分组每个小组同时动手演示试验的每个步骤学生分角色表演对话13任务里教学法：布置任务，让学生们总结试脸的主要步探以及各个步中的主要语句，2学习方法(I)试骐学习法：让学生对本课内容进行归纳，埋清步骤依据试脸步骤做试验FiIlthejarwithwaler.Covcrthetopwithapieceofcardboard.(3Xumthejarupsidedown.(2)体裁变换学习法：将本课的内容改写为一篇小故事叙述试验过程。Onediy.Briiinsuggestedtodoanexperi11wnt更多备课资源：XVoixl版电子教案、见配的课件，详见云资源。老师详解详析1.esson251.et,sDoanExperiment?I.单词：lxu11xx(2.melh<xl3.force4试脸；试脸S.上部：上边6倒出：倾倒7.科学的g.雨衣9压力压强：挤压IO得出结论;断定：推断出11广口瓶；祥子短语：I.<umupsidcdown2.pourout3 -scientificmc(h<i4.takcoff5 fillWith6.cowerWith7 besureof8 doanexperiment句型：1.covecwithihold9 (um;upsidedown;take;off10 sosureof;<hai11 Theforceof;keeps:in12 strungenoughtohold13 conclude;strongerchanIl.（八）1.experimcnts2.scientific14 -concluded4.co11,ect5.raincoal(B)1.strongenough2.isItady15 pressure4.pouringout5.puton16 I.1.B2.A3.A4.B5.C6.C7.BSDputofYg“推迟”：ShiHofr意为“关闭"：getoff意为“下车”：take。行意为“脱掉：起飞”依据XAtenibIesmdr可知是“脱掉袜予”故选d17 .(A>l.Wha(haveyoudiscovered2 Thejarisfilledwithwaler3 .lakeyourhandsofl'thccake4 Thewindisstrongerthan1thought5 Whaianexcitingexperimentwehad(B)1.isfullof2.don,tbelieve6 Whalshould4.k>n,ttakeoff7 tallerthanWI.an2.filled3.with4.held5.off8 To7.stayed8.amazing9.Because10 tokeepI.I-5BCC6-10BBDCD