Lesson 25 Let's Do an Experiment!.docx

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1、1.esson251.etsDoanExperiment!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

2、莱恩可以在你的头上做试验IammytheoryBriancandtheexperimentoveryourhead.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 Tkkeepheallhy.weshouldexerciseina(science)way.3 -Hcc(hattheplanwasnoWO

3、rkablC(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,bereadyIShesnot(ogowalkingupmountains.2 -Everybodyfortodayslest.3 Highhkxikillsmanypeople.4 WcshouldtakeactiontostopIhCfactorieswastewaler.5

4、Youdbelteryourcoat,hsverycoldoutside.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.Iquitea

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6、.methodsCanswersD.questions( )8.Aterriblesmell,Ted!SonyMum.illnysocksandput(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,is

7、5 exciting,we.wtu.expei11)ent.had.anI(B)句型转换每空一词ITheboxisfilledwihcloI11J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.

8、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.(ftliajarwithwater.1coveredthetop3.apieceofcardboardand4.(hold)itthere.Then1turnedthejarupsidedownandtookmyhand5.otheCardboard.6.mysurprise,thewater7,sinIhejar.Everyonefeh8.(amaze).Why?9.theforceoftheairisstrongCrKHlgh1

9、0.(keep)thewalerinsidethejar.V1.完形填空Thebestthingtostartyour(layisagoodbreakfast.Therearcdiflrcntofbreakfastsaultheworfd.“Eatbreakfastlikeaking,lunchlikeaprinceanddinnerlikeaPMiPeH穷人_2_IhColdsayingtellsusbreakfastisthemostimpcrtantmealoftheday.Itgivesusenergyafteralongnight3food.Ifpeopledon,thavebrea

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11、(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.Altho

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14、hyourthumbdown,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