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話題背景搶先知HowtogetchildreninterestedinscienceIt'sespeciallyfunandeasytotakepartinyourchild'sscienceeducation.Youdon'tneedtobeascientist,orhavelotsoffactsinyourhead.Allyouneedisaloveofdiscovery.Showyourchildthatit'sgoodtobecuriousandtoaskquestions.Thiswillgivehimconfidenceinhisownabilitytoexplore.Herearesomewaystogetinvolved:BetheexampleShowhimhowcuriousyouare.Letyourownsenseofdiscoveryguideyourexploration.Showanattitudeofopennesstolearning.Showthefunofexplorationandthejoyoflearningnewthings.PointitoutScienceisallaroundyou.Findfunwaysofshowingyourchildthescienceofhereverydaylife.It'sincooking,cleaning,buildingafireinthefireplace.It'sintheyard,thegarageandthebasement.Thenightsky,themorningdew,therisingandsettingofthemoonandsun;it'sallscience.TeachobservationChildrenaresurroundedwithnewinformation.Itcanbealottotakein.Butthey'realwayslooking,andalwayslistening.Teachyourchildtopaycloserattentiontodetails.Whenheseessomethingnew,askhimtonoticethesize,theshape,thecolor,thesmell,andthesound.Teachhimtotakeamomenttonoticethings.Youcanevenencouragehimtotakenotesofthethingsheseeseachday.,[閱讀障礙詞]discoveryn.發(fā)現(xiàn),發(fā)覺;被發(fā)現(xiàn)的事物confidencen.信心;信任;秘密explorev.勘查;探索attituden.態(tài)度;看法surroundvt.包圍,圍繞observationn.觀察encouragevt.促進;支持;鼓勵Ⅰ.Matchthewordwithitsmeaning.1.conclusionA.普通的;平常的2.reactB.階段;時期3.mixtureC.膨脹4.electricityD.液體5.floatE.設(shè)備;裝備6.expandF.煮;煮沸7.ordinaryG.結(jié)論8.boilH.反應(yīng)9.equipmentI.電10.liquidJ.收縮11.contractK.漂浮12.stageL.混合物答案:1~6GHLIKC7~12AFEDJBⅡ.Writedownthemeaningofphrasesineachsentence.1.YouknowthefirstthingIthoughtofwhenIwokeup?想起;想到2.Theyneedtointerviewsomepeopleandfindoutiftheyliketheirjobs._查明3.Hehadevenbeenkeptoutofschoolduringthebusiestseasons.置身于外4.Hehurriedmeintoputtingmyownhouseinorderfirst.整理5.Inconclusion,Iwishthismeetingeverysuccess.最后6.Ironreactswithwaterandairtoproducerust.與……發(fā)生反應(yīng)7.Doyouwanttoaddyournametothelist?把……加到……Matchthefollowingobjectswiththeirnames.A.crucibleB.beaker&glassrodC.a(chǎn)lcoholburnerD.microscopeE.tongsF.testtubeG.balance答案:①~⑦EDBCFGAⅠ.Fastreading1.SkimthepassageAandwritedownthemainideaofit.The_reaction_of_metals_with_different_substances.2.SkimpassageBandwritedownthemainideaofeachpart.(1)Part1Iron_in_dry_air.(2)Part2Iron_in_air-free_water.(3)Part3Iron_in_ordinary_water.Ⅱ.Careful-readingReadthetextcarefullyandchoosethebestanswer.PassageA1.Thefirstsentence“Itishardtothinkofaworldwithoutmetals.”willmakeusthink_______.A.metalsmakeuptheworldB.metalsplayagreatlyimportantroleintheworldC.therewouldbenoworldiftherewerenometalsD.itisdifficultforustoliveintheworldofmetals2.Thetableinthepassageisarrangedinorderof________.A.metalkindsB.reactionactivitiesC.valuesofmetalD.thefirstlettersofthewords3.Anoxideisa________.A.newkindofmetalsB.kindofgasesC.productofthereactionD.factor(因素)ofachemicalreaction4.Accordingtothetable,whichmetalismostsuitabletomakeourdailykitchenware(廚房)?A.Zinc.B.Iron.C.Copper.D.Magnesium.PassageB5.WhichisNOTtheapparatus(儀器)thatisrequiredintheexperimentof“Ironindryair”?A.Cottonwool.B.Oil.C.Ironnails.D.Testtubeholder.6.Whichisrequiredasoneoftheapparatusintheexperimentof“Ironinordinarywater”?A.Oil.B.Cotton.C.Bunsenburner.D.Testtubeholder.7.Thepurposeofthesethreeexperimentsistofindouthow________.A.ironreactswithwaterandairB.importantironisC.dotheexperimentofiron'sreactionwithwaterandairD.tokeepironrustless答案:1~4BBCC5~7BDDⅢ.StudyreadingAnalyzethedifficultsentencesinthetext.1.Differentmetalshavedifferentuses,forexample,steelisusedincars,andironisusedinelectricalequipment.[句式分析]在該句中forexample為插入語,后面接的是由并列連詞and連接的兩個簡單句,其中兩個簡單句中“主語+isused...”是被動語態(tài)。[嘗試翻譯]不同的金屬有不同的用途,比如,鋼材被用于汽車中,鐵被用于電器設(shè)備中。2.Whenweusemetals,itisimportanttoknowhowtheyreactwithdifferentsubstances,forexample,waterandoxygen.[句式分析]Whenweusemetals是時間狀語從句,it為形式主語,真正的主語是后邊的動詞不定式toknowhow...。[嘗試翻譯]當(dāng)我們使用金屬時,了解它們與不同的物質(zhì)如何反應(yīng)很重要,比如,水和氧氣。3.Hereisatablewiththemetalsthatreactmostatthetop,andthemetalsthatreactleastatthebottom.[句式分析]此句為倒裝句。here置于句首,主語為名詞,此時要將謂語動詞放在主語前構(gòu)成倒裝。兩個that從句都是定語從句,修飾前面的先行詞metals。atthetop和atthebottom在句中作賓補。[嘗試翻譯]這里有一個表格,反應(yīng)最強的金屬在上面,反應(yīng)最弱的在下面。[對應(yīng)學(xué)生課時達標訓(xùn)練(十七)]閱讀理解AChemicalChangeandPhysicalChangeTherearetwokindsofchanges—chemicalchangeandphysicalchange.Inachemicalchange,thereisalwaysanewsubstanceformed.Breakingupwaterintohydrogenandoxygenisachemicalchange.Ineachofthechemicalchangeatleastonenewsubstanceisformed.Achangeisnotachemicalchangeifitdoesn'tformanewsubstance.Physicalchangesareverymon,too.Therearemanyexamples.Youcanmakeaphysicalchangebytearingapieceofpaperintotwo,orbycuttingapieceofironwithlathe(機床).Herepaperisstillpaper,andtheironisstilliron.Anotherwayofmakingphysicalchangeisdissolvingsomethinginwater.Whenyoudissolvesaltinwater,thesaltdisappears.Youmaythinkthatanewsubstancehasbeenformed.Butreallythereisnonewsubstance.Thesaltisstillsalt.Youcanstilltasteit.Sothedissolvingofanythingisaphysicalchange.Whenwaterfreezes,thechangeisalsoaphysicalone.Thewaterchangesfromliquidtosolid,butitisstillthesamesubstance.Thatiswhythefreezingofanythingisaphysicalchange.語篇解讀:本文主要講了兩種變化——化學(xué)變化和物理變化。1.Thedissolvingofsaltinwateris________.A.a(chǎn)physicalchangeB.a(chǎn)chemicalchangeC.hydrogenandoxygenD.breakingup解析:選A細節(jié)理解題。根據(jù)文章第四段,尤其是最后一句可知:溶解任何東西都是物理變化。2.Thechangeofthethreestatesofwateris________.A.a(chǎn)chemicalchangeB.differentsubstancesC.a(chǎn)physicalchangeD.thesamestate解析:選C細節(jié)理解題。從文章最后一段得知水從液體變?yōu)楣腆w或變?yōu)闅怏w,并沒有生成一種新的物質(zhì),仍是同一種物質(zhì),因此水的三種形態(tài)變化屬于物理變化。3.Wecanseparateachemicalchangefromaphysicaloneby________.A.thechangeofshapeB.thechangeofcolorC.newly-producedsmokeD.newly-formedsubstances解析:選D推理判斷題。由第二段可知在化學(xué)變化中有新物質(zhì)產(chǎn)生,只要沒有新物質(zhì)產(chǎn)生就不是化學(xué)變化。由此得知:判斷是化學(xué)變化還是物理變化的依據(jù)是看是否有新物質(zhì)產(chǎn)生。4.Ifyouchangewaterintohydrogen,itis________.A.a(chǎn)physicalchangeB.a(chǎn)chemicalchangeC.a(chǎn)physicalandchemicalchangeD.notachange解析:選B細節(jié)理解題。根據(jù)第二段可知:把水分解成氫氣和氧氣,是一個化學(xué)變化。BTherearemanyinterestingscienceexperimentsoutthereforyoungkids.Youcanwowyourfriendsandteacherswiththem.Allyouhavetodoistoputalittleeffortintoitandyoushouldhavenoproblemingupwithaninterestingscienceexperiment.Onesuchexperimentistoshowyourfriendsandteachersthatyoucanmakemothballs(樟腦丸)dance!Ifyouwanttodoit,first,besurethatyouhavegotallthenecessarysciencekitsforyourscienceexperiment.Whatyouneedforthisexperimentisaglassfilledhalffullwithwater.Addalittlebitofvinegar(醋)toyourglassofwater,about1/3or1/4ofacup(60ml),andoneteaspoon(10ml)ofbakingsoda,andthencarefullystirthemixture.Dropafewmothballsintotheglassandhaveyouraudiencewatch.Aslongasthesurfacesofthemothballsbeefairlyrough,theyshouldbegintobounceupanddownintheglass.Youcanalsodoasimilarexperimentwithraisins(葡萄干)andclearpop,_suchasSprite.Inthisexperiment,allyouhavetodoistofillaglasswithSpriteanddropafewraisinsintoit.TheraisinsshouldbegintobounceupanddownintheglassofSprite.YoucanalsoreplacetheraisinswithmothballsandyoushouldgetthesameeffectintheSprite.ThisprojectworksbecausetheirregularsurfacesofthemothballsandtheraisinsholdsomeCO2bubbles(氣泡),causingthemtobounceupanddowninadancingmotion.語篇解讀:文章向我們介紹了如何做簡單且有趣的科學(xué)實驗。5.Thewriterwrotethispassageto________.A.explainwhysomescienceexperimentsareeasyB.encouragepeopletospendmoretimeonscienceC.tellushowgoodheisatdoingscienceexperimentsD.teachkidshowtodoaneasyandinterestingscienceexperiment解析:選D作者意圖題。通讀全文,可知作者主要向我們介紹怎么做一個簡單而有趣的科學(xué)實驗,故選D。6.Whatisthemostprobablenameoftheexperiment?A.Producingmothballs.B.Dancingmothballs.C.Changingmothballs.D.Swimmingmothballs.解析:選B推理判斷題。根據(jù)第一段的“Onesuchexperimentistoshowyourfriendsandteachersthatyoucanmakemothballs(樟腦丸)dance!”可知選“跳舞的樟腦丸”最好。7.Whichofthefollowingthingsareneededintheexperiment?a.bakingsodab.waterc.mothballsd.salte.vinegarf.sugarA.bcefB.a(chǎn)cdeC.a(chǎn)bcdD.a(chǎn)bce解析:選D細節(jié)理解題。根據(jù)第三段的“aglassfilledhalffullwithwater.Addalittlebitofvinegar(醋)toyourglassofwater,about1/3or1/4ofacup(60ml),andoneteaspoon(10ml)ofbakingsoda”可知應(yīng)選D。8.Theunderlinedword“pop”inParagraph4probablyrefersto“________”.A.a(chǎn)mothballB.a(chǎn)kindofvinegarC.a(chǎn)drinkwithbubblesD.a(chǎn)specialkindofraisin解析:選C詞義猜測題。根據(jù)畫線詞后“suchasSprite”以及“holdsomeCO2bubbles”可知pop在這里是指含有二氧化碳的飲料。CMonthlyTalksatLondonCanalMuseumOurmonthlytalksstartat19:30onthefirstThursdayofeachmonthexceptAugust.Admissionisatnormalchargesandyoudon'tneedtobook.Theyendaround21:00.November7thTheCanalPioneers,byChrisLewis.JamesBrindleyisrecognizedasoneoftheleadingearlycanalengineers.Hewasalsoamajorplayerintrainingothersintheartofcanalplanningandbuilding.ChrisLewiswillexplainhowBrindleymadesuchapositivecontributiontotheeducationofthatgroupofearly“civilengineers”.December5thIcefortheMetropolis,byMalcolmTucker.Wellbeforethearrivaloffreezers,therewasademandforiceforfoodpreservationandcatering,Malcolmwillexplainthehistoryofimportingnaturaliceandthetechnologyofbuildingicewells,andhowLondon'sicetradegrew.February6thAnUpdateontheCotswordCanals,byLizPayne.TheSmoudwaterCanalismovingtowardsreopening.TheThamesandSevernCanalwilltakealittlelonger.Wewillhaveareportonthepresentstateofplay.March6thEyotsandAits-ThamesIslands,byMirandaVickers.TheThameshadmanyislands.Mirandahasundertakenareviewofallofthem.Shewilltellusaboutthoseofgreatestinterest.Onlinebookings:.uk/bookMoreinto:.uk/whatsonLondonCanalMuseum12-13NewWharfRoad,LondonNI9RT.ukcanalmuseum.mobiTel:02077130836語篇解讀:文章主要介紹了在倫敦運河博物館每個月的講座安排。內(nèi)容包括講座的時間、做講座的人以及講座內(nèi)容的簡介。9.WhenisthetalkonJamesBrindley?A.February6th.B.March6th.C.November7th.D.December5th.解析:選C細節(jié)理解題。根據(jù)文章第二段第二句“JamesBrindleyisrecognizedasoneoftheleadingearlycanalengineers.”可知所對應(yīng)的日期是November7th,故選C。10.WhatisthetopicofthetalkinFebruary?A.TheCanalPioneers.B.IcefortheMetropolis.C.EyotsandAits-ThamesIslands.D.AnUpdateontheCotswordCanals.解析:選D細節(jié)理解題。根據(jù)文章第四段中的“AnUpdateontheCotswordCanals,byLizPayne.TheSmoudwaterCanalismovingtowardsreopening.”可以得出答案,故選D。11.WhowillgivethetalkontheislandsintheThames?A.MirandaVickers.B.MalcolmTucker.C.ChrisLewis.D.LizPayne.解析:選A細節(jié)理解題。根據(jù)文章第五段第一句“EyotsandAits-ThamesIslands,byMirandaVickers.”可知做報告的人是MirandaVickers,故選A。eq\a\vs4\al([課文對譯])PassageAItishardtothinkofaworldwithoutmetals.Differentmetalshavedifferentuses,forexample,steelisusedincars,andironisusedinelectricalequipment.Whenweusemetals,itisimportanttoknowhowtheyreactwithdifferentsubstances,forexample,waterandoxygen.Thereactionofmetalswiththesesubstancescanbeputinorder.Hereisatablewiththemetalsthatreactmostatthetop,andthemetalsthatreactleastatthebottom.MetalHeatedinoxygenReactionwithwaterorsteamPotassiumBurnstoformanoxide*ReactingwithcoldwaterSodiumCalciumMagnesiumReactingwithsteamAluminiumZincIronReactsslowlyPartialreactionCopperPartialreactionNoreaction*anoxide=anothersubstance+oxygenPassageBASimpleScientificExperimentBelowisadescriptionofasimplescientificexperiment.Itshowsushowironreactswithairandwithwater.Aim:Tofindoutifironrusts(a)indryair;(b)inwaterthathasnoairinit(air-freewater);(c)inordinarywater.Apparatus:3cleanironnails;testtubes;testtubeholder;cottonwool;oil;Bunsenburner.IronindryairMethod(1)Putsomeironnailsatthebottomofatesttube
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