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小华同学用50g含不溶性杂质10%的粗盐配制20%的氯化钠溶液． （1）他称取粗盐时，发现天平指针向右偏，他接下来的操作是 ． （2）开始提纯的步骤是 、 、 ． （3）小华将...
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在实验室配制50g质量分数5%的氯化钠溶液.请按要求回答下列问题1甲同学用氯化钠和蒸馏水配制需要氯化
某化学兴趣小组的同学做粗盐含有难溶性杂质提纯实验并用所得的精盐配制50g5%的氯化钠溶液.实验一如图
某化学兴趣小组的同学做粗盐含有难溶性杂质提纯实验并用所得的精盐配制50g5%的氯化钠溶液实验一如图是
在实验室配制溶液时常涉及以下过程①称量量取②过滤③蒸发结晶干燥④计算⑤溶解请按要求回答下列问题⑴甲同
实验室需要100g质量分数为3%的氯化钠溶液配制过程中相关描述正确的是
用3g氯化钠与100g水配制得到
直接用手抓取氯化钠
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用50g质量分数为6%的氯化钠溶液与50g水配制得到
欲配制10%的氯化钠溶液70g.1甲同学用氯化钠固体配制.需称取氯化钠g第三步操作中需要的仪器有2乙
欲配制10%的氯化钠溶液70g1甲同学用氯化钠固体配制需称取氯化钠g2乙同学用25%的氯化钠溶液配制
实验室需要100g质量分数为3％氯化钠溶液配制过程中相关描述正确的是
用 3g 氯化钠与 100g 水配制得到
直接用手抓取氯化钠
氯化钠直接放于天平托盘上称取
用50g 质量分数6％氯化钠溶液与50g 水配制得到
实验室需要100g质量分数为3%氯化钠溶液配制过程中相关描述正确的是
用3g氯化钠与100g水配制得到
直接用手抓取氯化钠
氯化钠直接放于天平托盘上称取
用50g质量分数6%氯化钠溶液与50g水配制得到
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欲配制10%的氯化钠溶液70g.1甲同学用氯化钠固体配制.需称取氯化钠g2乙同学用25%的氯化钠溶液
小华同学用50g含不溶性杂质10%的粗盐配制20%的氯化钠溶液1他称取粗盐时发现天平指针向右偏他接下
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某化学兴趣小组的同学做粗盐含有难溶性杂质提纯实验并用所得的精盐配制50g5%的氯化钠溶液.实验一如图
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3分毫无疑问坚持努力不仅能使学生获得成功并且能让他们养成良好的习惯.doubt .
6分ZoosVictoria﹣FriendsoftheZoosVictoria Newcheaperfamilymembershippricesareavailablenow! TheVictoriaGovernmenthasannouncedfreeadmissionforchildrentrader16yearsofagetoallthreeofourZoosVictoriaonweekendsVictoriapublicholidaysandVictoriaGovernmentschoolholidaysfromJuly1. WeareveryexcitedaboutthechangesandaredelightedthiswillmakemembershipsevenmoreaffordableforVictoriafamilies.FromnowonallchildrenarefreeonZoosMembershipswhichmeansyourchildrencanvisitusanytimeyoulikeasoftenasyoulikeforfree. CheckoutOurnewmembershipandbenefitsbelow. AnnualMembershipentitlesyouto: UnlimitedfreeentrytoHaleyvilleSanctuaryMelbourneZooandWerribeeZoofor12months. Freeaccesstointerstatezoos:TarongaZooPerthZooAdelaideZooWesternPlainsZooMonartoZoo. Newsupdatesandhappeningsatthethreezoosviae﹣NewslettersandthequarterlymagazineZooNew. DiscountsandspecialoffersonTwilightConcerttickets. 15%discountatzooshops. FreeentrytoRhythmofAfricaconcertsatWerribeeZoo. SingleMembershipPrice Adult$88.00 AdditionalAdult1ivingatsameaddress$75.00 Seniors$79.00 Child0﹣15yearsofageFREE ZoosVictoria﹣FriendsoftheZoosMembershipOffice PoBox74ParkvilleVIC3052 Phone92859325 Fax92859390 E﹣mailfriends@zoo.org.au 21.Whatisthepassageintendedtodo? A.Attractmorepeopletobuythezoosmembership. B.Introducehowtobuythenewzoosmembership. C.InformVictorianfamiliestovisitthezoosforfree. D.Persuademorechildrenunder16tovisitthethreezoos. 22.Ifyouhaveazoosmembershipcardyoucan. A.attendTwilightconcertsfreeofcharge B.buythingsatalowerpriceatzooshops C.enjoyfreeentrytothezoosfortenmonths D.enjoyAfricanmusicinthethreezoosforfree 23.Ifayoungcoupleappliesforthemembershiptheywillpay. A.﹩157 B.﹩163 C.﹩193 D.﹩232.
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3分FreyaStarkexplorerandwriter FreyaStarkwasanexplorerwholivedduringatimewhenexplorerswereregardedasheroes.ShetravelledtodistantareasoftheMiddleEastwherefewEuropeans﹣especiallywomen﹣25travelbefore.ShealsotravelledextensivelyinTurkeyGreeceItalyNepalandAfghanistan. StarkwasborninParisin1893.26shehadnoformaleducationasachildshemovedaboutwithherartistparentsandlearnedFrenchGermanandItalian.SheenteredLondonUniversityin1912butatthestartofWorldWarIshejoinedthenurseteamand27sendtoItaly.AfterthewarshereturnedtoLondonandattendedtheSchoolofOrientalStudies.HerstudiesthereledtoextensivetravelintheMiddleEast28enablehertoeventuallybecomefluentinPersianRussianandTurkish. StarkbecamewellknownasatravelerandexplorerintheMiddleEast.ShetravelledtotheLebanonin1927attheageof3329shehadsavedenoughmoneyandwhilethereshestudiedArabic.In1928shetravelled30donkeytotheJebelDruzeamountainousareainSyria.Duringher31tripshewenttoadistantregionoftheElburzamountainrangeinIranwhereshemadeamap.ShewassearchingforinformationaboutanancientMuslimsectKnownastheAssassinswhichshewroteaboutinValleyoftheAssassins1934aclassic32shewasawardedaGodMedalbytheRoyalGeographicSociety.Forthe12yearsshecontinuedhercareerasatravelerandwriterestablishingastylewhichcombinedanaccountofherjourneywithpersonalcommentaryonthepeopleplacescustomshistoryandpoliticsoftheMiddleEast.
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小李同学在探究电流与电压关系的实验请完成下列各题 1按照图甲所示的电路图请用笔画线代替导线完成图乙所示的实物图的连接电表均选小量程． 2连接电路时开关应处于状态． 3在做探究电流与电压关系的实验时要求保持电阻阻值不变通过改变电阻两端的观察电流大小的变化． 4如图丙所示是他在实验中的第三次测量结果其中电压U为V电流I为A． 实验记录定值电阻R＝6Ω 5分析实验数据可以得出结论在一定时通过导体的电流与导体两端的电压成．
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30分Welostanothertreeinourlaststormanditbrokemyheart.Wehavelostmanytreesthroughtheyearsbutthisonewas41. About17yearsagoIplanted10Canadianbluespruceseedlings树苗alongthedriveways.AndIdidallIcouldto42them.Shortlyafterthatastormrippedthroughourareaand43manytrees.Myseedlingssurvived.Butwhenwedecidedto44ourneighborinsellingourdownedtreeswehadto45theseedlingstokeepthemfromgettingdestroyed.46fiveofthe10bluesprucetreesdidn'tsurvivebeingmoved. Ofthefivethat47threewereinourfrontyardwhereIcouldwatchthemgrowintomaturetreesfrommyfrontwindow.WhenoneofthebigDouglasfirs花旗松thattowered48themdiedwedecidedtocutitdownbeforeitfell.Aftermuch49myhusbandandmysondecidedtheycoulddropitwithout50anyofthebluesprucetrees.Iwatched51asthedramaunfoldedprayingthewholetimeI52thechainsaw电锯.Thefirfellrightbetweentwoofthem53plannedandmytreescontinuedtogrow. ThenonenightIwaslyinginbedduringyetanother54andheardaloudnoisefollowedbythesoundofatreecrashingdown.ThenextmorningI55tofindthelargestofourbluespruceslyingontheground;Iwasincrediblyupset.For17yearsI'd56watchingitgrowfromaseedlingtoatreenearly40feettall.Nowitwas57. Losingmytreewashardto58eventhoughIknewitwasnature'sway.IalsoknewtherewasonlyonethingIcoulddoaboutit.Another10newseedlingsrecentlyarrived.Iplantedthemina59spotclosetothehouse.Whenthey'realittlelargerI'lltransplantthemtoapermanentspotwhereIcan60themgrowtallandbeautiful. 41.A.significant B.different C.valuable D.unaffordable 42.A.protect B.grow C.attend D.develop 43.A.rippedoff B.stoleaway C.tookdown D.blownup 44.A.persuade B.resist C.appreciate D.join 45.A.cover B.transplant C.move D.preserve 46.A.Disappointedly B.Consequently C.Unexpectedly D.Sadly 47.A.left B.lived C.moved D.sold 48.A.upon B.down C.over D.through 49.A.debate B.design C.measure D.consideration 50.A.stretching B.reaching C.threatening D.hitting 51.A.breathlessly B.excitedly C.attentively D.carefully 52.A.held B.stuck C.heard D.operated 53.A.after B.as C.when D.though 54.A.nightmare B.drama C.windstorm D.weekend 55.A.woke B.happened C.rushed D.came 56.A.accustomed B.finished C.managed D.enjoyed 57.A.fallen B.gone C.done D.lost 58.A.believe B.endure C.accept D.adapt 59.A.secret B.safe C.convenient D.hidden 60.A.accompany B.watch C.imagine D.shelter
如图所示在螺线管内插一个铁芯当电流通过螺线管时螺线管中的铁芯就被电流的磁场使它的磁性．我们可以通过观察通电螺线管来判断磁场的强弱．当电路断开时它们的磁性．
天气转凉妈妈买来电热毯其简化电路图和铭牌如图所示．R1和R2为发热电阻丝． 1高温状态下电路中的电流是多少加热10min电路消耗的电能是多少 2R1和R2的阻值各是多少
3分直到他此次考试不及格他才意识到词汇学习包括拼写单词以及学会正确的使用词汇表达自己的观点.Notuntil… .
8分AboutthreedecadesagoChinawasknownastheBicycleKingdom.Butlateronbikeswerereplacedbytheirfuel﹣poweredcompetitors. ButrecentmonthshaveseenarevivalofthehumblebikeacrossChinawithanincreasingnumberofpeoplechoosingcyclinginsteadofdrivingtoschoolstoworkplacesortodosightseeing.Theintroductionofbike﹣sharingschemespioneeredbystart﹣upslikeOfoandMobikehasbroughtthetrendtoanewlevel. Peoplecanunlockthesharedbikesbysimplyusingtheirsmartphone.ThebikesareequippedwithGPSandcanbeleftanywhereinpublicforthenextuser.They'repopularamongmanyChinesepeopleastheyprovideaneffectivesolutiontothelastmileproblemwhichreferstothefinallegofaperson'sjourney. Inplaceswherethesubwaydoesn'textendwhereit'sdifficulttochangefromonekindoftransporttoanotherit'ssoeasytogetwhereyouwanttogowithMobikeHuHong29toldAFP.ShepedalstoherShanghaireal﹣estatejob. Howevertheschemeshavealsoledtoproblemssuchasillegalparkingvandalismandtheft.LastmonthtwonursesinBeijingwereplacedunderadministrativepunishmentforfivedaysforputtinglocksontwosharedbikes.AndinDecemberamanwhostoleasharedbikewassentencedtoa3﹣monthdetentionwitha3﹣monthprobationandfined1000yuanbytheShanghaiMinhangPeople'sCourt. Bike﹣sharingisagreenermethodoftransportationandprovidesauser﹣friendlyexperiencesaidLiuXiaomingvice﹣ministeroftransport.Butit'sacombinationofonlineandofflinebusiness.Operatorsareusuallystronginonlineservicesbutlackofflinebusinessexperiencewhichcausesproblems.Todealwiththeseproblemsthecompanycameupwiththeideaofencouragingpeopletoreturnthebikestostationsbyrewardingfreetimefortheirnextrides. 32.Whohasbroughttherevivalofbiketoanewlevel? A.Thelocalgovernment B.Thebusinessman C.Thestudentsandworkers D.Thepioneeredstart﹣ups 33.Whichofthefollowingdoesn'tbelongtothelastmileproblem? A.Missingthebusinessplanefortrafficjam. B.Togettosomewherethesubwaydoesn'treach. C.Havingtroublesinchangingfrombustotaxi. D.Havingnofinallegofaperson'stravel. 34.Whatreasoncausesmanyproblemsinbike﹣sharing? A.Somepeoplemakedamagetothebikesonpurpose. B.Operatorslackofflinebusinessexperience. C.Thebike﹣sharingbusinessistoocomplicatedtorun. D.Therearenorelativelawsonthisbusiness. 35.What'sthebesttitleofthispassage? A.BicycleKingdombecamefamousagain. B.Anewwayoftransportation. C.Ridingbikesforfree. D.Bikespedalingbackintostyles.
3分Therewasatimewhenwethoughthumanswerespecialinsomanyways.Nowweknowbetter.Wearenottheonlyspeciesthatfeelsemotionsorfollowsamoralcode.Neitherarewetheonlyoneswithpersonalitiesculturesandtheabilitytodesignandusetools.Yetweallagreethatonethingatleastmakesusunique:wealonehavetheabilityoflanguage.Itturnsoutthatwearenotsospecialinthisaspecteither.Keytotherevolutionaryreassessmentofourtalentforcommunicationisthewaywethinkaboutlanguageitself.Whereonceitwasseenasanunusualobjecttodayscientistsfinditismoreproductivetothinkoflanguageasagroupofabilities.Viewedthiswayitbecomesapparentthatthecomponentpartsoflanguagearenotasuniqueasthewhole.Takegesturearguablythestartingpointforlanguage.Untilrecentlyitwasconsidereduniquelyhuman﹣butnotanymore.MikeTomasellooftheMaxPlanckInstituteforEvolutionaryAnthropologyinLeipzigGermanyandothershavecollectedalistofgesturesobservedinmonkeysandsomeotheranimalswhichrevealsthatgesturesplayalargeroleintheircommunication.Ape猿gesturescaninvolvetouchvocalisingoreyemovementandindividualswaituntiltheyhaveanotherape'sattentionbeforemakingvisualorauditorygestures.Iftheirgesturesgounacknowledgedtheywilloftenrepeatthem.Inanexperimentcarriedoutin2006byEricaCartmillandRichardByrnefromtheUniversityofStAndrewsintheUKtheygotapersontositonachairwithsomehighlydesirablefoodsuchasbananatoonesideofapesandsomeundesirablefoodsuchasvegetablestotheother.Theapeswhocouldseethepersonandthefoodfromtheirenclosuresgesturedattheirhumanpartnerstoencouragethemtopushthedesirablefoodtheirway.Ifthepersonshowedincomprehensionandofferedthevegetablestheanimalswouldchangetheirgestures﹣justashumanswouldinasimilarsituation.Ifthehumanseemedtounderstandwhilebeingsomewhatconfusedgivingonlyhalfthepreferredfoodtheapeswouldrepeatandexaggeratetheirgestures﹣againinexactlythesamewayahumanwould.Suchfindingshighlightthefactthatthegesturesoftheanimalsarenotmerelyinbornbutarelearnedflexibleandundervoluntarycontrol﹣allcharacteristicsthatareconsideredpreconditionsforhuman﹣likecommunication.73.Comparedwithalltheotheranimalsweagreethathumansalone.A.owntheabilitytoshowtheirpersonalitiesB.arecapableofusinglanguagetocommunicateC.havemoralstandardsandfollowtheminsocietyD.areintelligentenoughtoreleaseandcontrolemotions74.Accordingtothepassagehumansarenotsospecialinlanguageabilitybecauselanguage.A.involvessomeabilitiesthatcanbemasteredbyanimalsB.isatalentimpossiblyownedbyotheranimalsC.canbedividedintodifferentcomponentsD.areproductiveforsometalentedanimals75.Whichofthestatementscanbeconcludedfromthepassage?A.Someanimalscantrytousebodylanguagesascommunicationmethods.B.Gesturesthestartingpointforlanguageareconsidereduniquelyhuman.C.Someanimalssuchasapesandmonkeyssharesomecommongesturescodes.D.Whengesturesaremisunderstoodapeswilloftentrytoexpressinanewway.76.WhatcanwelearnfromtheexperimentbyCartmillandByrne?A.Apescanuselanguagetocommunicatewiththehelpofhumans.B.Repeatingandexaggeratinggesturesisvitalinlanguagecommunication.C.Someanimalscanlearntoexpressandcommunicatethroughsometrials.D.Thepreferredfoodstimulatessomeanimalstouselanguagetocommunicate.77.Whatisprobablythebesttitleofthepassage?A.Languageinvolvesgestures!B.Animalslanguage﹣gestures!C.Soyouthinkhumansareunique?D.Thesimilaritybetweenhumansandapes.
如图所示的电路中R1R2为定值电阻电源电压不变闭合开关S1S2两表均有示数若闭合开关S1断开开关S2则
15分Dr.GeYunhashelpedmanykidswhowerebornwithdefects缺陷61includeme.ShedidmyfirsttwooperationswhenIwasababywhichwerethemostimportantand62effect. Idon'trememberthefirsttwooperationsverywell.63Idorecallthethird.Dr.GeYunwaskindandeasedmeintotheprocess.Shetriedeverythingshecould64makesurethatIwasokay.I65recentsawapictureofmebeforemyoperationandIknewwhatabigjobshedid. Dr.GeYunoperates66peoplewithalltypesofbirthdefects.Shealsogoestoothercountries67peoplecannotaffordthetreatmentandhelpsthemforfree.Manypeoplebenefitfromhernewways68inventtofixbirthdefectsoftheheadandface.She69winmanyawardssofar. ThoughIwasjustoneofthepatientstohertomeshewas70muchthanjustmydoctor.Shewasandismyheroandshereturnedthesmiletome.
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10分假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文. 文中共有10处语言错误每句中最多有两处.每处错误仅涉及一个单词的增加删除或修改. 增加:在缺词处加一个漏字符号^并在其下面写出该加的词. 删除:把多余的词用斜线\划掉. 修改:在错的词下划一横线并在该词下面写出修改后的词. 注意:1.每处错误及其修改均仅限一词; 2.只允许修改10处多着从第11处起不计分. LastAugustIwenttoSacramentoUSA.I'dbelookingforwardtoitforagesbutintheenditturned outtobetheworstholidaysofmylife.Mymotherwasbornherebutshehadn'tbeenbackforvisitfor twentyyearssoshehaddecidedtocomewithoutme.WhenourplanetoucheddownIlookedoutof thewindowincuriositybutshockedtofinditwaspouringdown!Mymumsaidnottoworry astheweathercouldchangeveryquick.InallwespenttwoweeksinSacramento.Believeitornot thesundoesn'tcomeoutevenonce!Insteadofgoingtothebeachorsightseeingwespentmostdays visitingmuseumsandwentshopping.ItcertainlywasnottheholidaythatIhadexpectedfor.
8分AreportbytheUS'OpenSyllabusProjectfoundthatthemostreadbooksamongUScollegestudentsinthepastyearwerethelikesofTheRepublicbyancientGreekphilosopherPlatoandTheClashofCivilizationsbyUSpoliticalscientistSamuelHuntington.AndaccordingtoreportsreleasedbyChinesecollegelibrariesthemostpopularbooksamongChinesestudentsarenovelslikeJourneyUndertheMidnightSunbyJapanesewriterKeigoHigashinoandDemi﹣GodsandSemi﹣Devils天龙八部byChineseauthorLouisCha. ThisisconsideredbymanytobeoneofthereasonswhyChinesestudentsaresometimesnotasgoodatcriticalthinkingorobservingglobalperspectivesasUSstudents﹣theyreadtoomanybestsellernovels. ByreadingtextsinsocialstudiesscienceandotherdisciplinesstudentsbuildafoundationofknowledgeinthesefieldsthatwillalsogivethemthebackgroundtobebetterreadersinallareasRobertPondisciovicepresidentoftheCoreKnowledgeFoundationintheUStoldTheWashingtonPost. AccordingtoChinaYouthDailythereareusuallyfivestageswhenitcomestoreadingwithpopularnovelsatthebottom.Moreadvancedreadersnormallygoontoreadclassicfictionalliteraturehistoryandphilosophyorbookswithcriticalideas.Thefifthstageinvolvesstudentsmakingtheirownreadinglistsbasedontheideological意识形态的systemstheyhavebuiltthroughouttheyears. Wespendhoursdaysorevenweeksonabooksoit'sonlynaturalthatwewanttolearnsomethingusefulinreturnforourefforts.Manyseereadingasaninvestmentinthemselves. Butthispracticalviewofliteratureandthethoughtthathistoryandphilosophybooksaresuperiortonovelsisnotagreedbyeveryone.Afterallwhattheyofferaretwodifferentkindsofsatisfaction.Whiletheformerprovidesknowledgethelatterbringssentimental情感的experiences.FictionandpoetryaremedicinesUKwriterJeanetteWintersononcewrote.Whattheyhealistherupture裂痕realitymakesontheimagination. 24.Thepurposeofparagraphoneisto. A.comparethepopularbooksbetweentheUSandChinesestudents. B.introducethedifferentdiscoveriesfromChinaandtheUS. C.analyzetheculturaldifferencesofthetwocountries. D.statewhyChinesestudentsaresometimesnotgoodatcriticalthinking 25.Toknowsomethingineachareastudentsshouldread. A.famousnovelswhichhaswonmanyprizes B.textsinsocialstudiesandotherdisciplines C.modernmagazineswhichhavegainedgreatpopularity D.sciencefictionsinvolvingknowledgeinmanyareas 26.AccordingtoChinaYouthDailywhichisthehigheststagewhilereading? A.Booksbasedonthereaders'thought. B.Classicfictionalliterature. C.Bookswithcriticalideas. D.Popularnovels. 27.Whatcanweinferfromthelasttwoparagraphs? A.Historybooksaresuperiortonovels. B.JeanetteWintersonthoughtfictionandpoetryarealsouseful. C.Philosophybookshelpthereadersgetemotionalexperience. D.Thewriterpreferstoreadthehistoricalandscientificbooks.
查询资料可知某地区冬季太阳能集热管每平方米面积上平均每天可接收的太阳能是1.7×107J．用300m2集热管接收的太阳能代替煤煤的热值是3×107J/kg．每天300m2集热管接收的太阳能是J．平均一个星期可节约煤t煤完全燃烧．
如图甲所示是小明在做“用伏安法测量某定值电阻R的阻值”的实验电路图 1实验前滑动变阻器的滑片应置于填“最左”或“最右”端其目的是为了． 2闭合开关移动滑动变阻器滑片P发现电压表始终无示数电流表有示数其原因可能是填字母 A滑动变阻器断路BR断路CR短路 3排除故障后当电压表的示数如图乙所示时电流表的示数如图丙所示则定值电阻的阻值是Ω． 4通常情况下要进行多次测量并取平均值其目的是为了．
10分TipsforStayingSharpIt'snotabnormaltofeeloutofitfromtimetotimeorperhapsyou'refeelingabitsluggish迟钝的whenitcomestorememberingthings.Ifyou'reworriedaboutyourforgetfulnesstryoutthesefivetipstostaysharp.36You'veprobablyheardthetermyouarewhatyoueat.Ifyoudecidetoeatsugaryfoodsthatareheavywithfatsthenexpecttofeellazyandhavenoenergy.Butifyoudecidetoeatfruitsvegetablesandmakeotherhealthyeatingdecisionsyou'11findthatyou'refullofenergy.NeverstoplearningChallengeyourselfconstantly﹣whetheritispuzzlesreadingcookingorothertasksthatwillkeepyourmindworking.Ifyourmindisalwayslearningnewthingsandactiveyou'11realizethatit'smucheasierforyoutolearnnewthingsandtofunction.37StayfitBeingingoodhealthandstayinginshapeisabigpartofstayingsharp.38Ifyouchoosetobelazythenyourbodyisnotgoingtogiveyoutheenergythatrequiresrememberingthingsandcompletingtasks.Howeverifyouputforththeeffortintobeinghealthythenyourbodywillexpel释放theenergyyouneedtoachieveyourgoals.EnsureenoughsleepBesuretogetthenecessaryamountofsleepthatyourbodyneedstofunctiononadailybasis.39Italsohelpsyourbodybuildupanenergyreservesoyoucanimproveyourabilitytofocusandavoiddistractions.Socializemore40Socialinteractionwillhelpyoudevelopmultitaskingproblemsolvingandotherskillsthatarenecessaryinlifetokeepyourmindsharp.A.Feedyourbrain.B.Avoideatingtoomuch.C.Yourbodywillonlygiveyouwhatyouputintoit.D.Lackofsleepcontributestotirednessandslowreaction.E.Conversationsrequireindividualstostayawareandactive.F.Accordingtostudiessleephelpsstrengthenandrecoveryourmemories.G.Rememberyourbrainisamuscleandifyouwanttogetthemostoutofityoumustuseit.
小明家电能表上个月底的示数为这个月底的示数如图所示可知他家本月电能表的表盘转了圈．他家最多能接入总功率为W的用电器．
25分假定你是李华学校将于5月底开展英语阅读周活动请给你的英国笔友Peter写信向他说明该活动的目的和意义并请他推荐适合高中生阅读的英文书籍. 注意: 1.词数100左右; 2.可适当增加细节以使行文连贯. .
8分Giantkitescouldsupplygreenenergywithouttheneedfortaxpayer﹣fundedsubsidies津贴withinyears.KitePowerSolutionsexpectstoopentheU.K.'sfirstkitepowerplantthisyearinScotland.Ithopestolaunchthetechnologyonshoreandatseabuildingsystemswiththecapacitytoproducehundredsofmegawattsofpowerwithinthedecade.Thecompanybelievesthetechnologycouldreducethecostofwindenergy.Anditpredictedthatkitepowerwouldcostsolittlethatdevelopingcountrieswouldbemorelikelytouseittofreethemselvesoffpollutingcarbon﹣heavyenergysources.AspokesmanAinsworthforKitePowerSolutionssaidthetechnologycoulddecreasethecostofoffshorewindenergymeetingtheneedforgovernments'effortstoreducecarbonemissions排放.Hesaidthetechnologywaseasytofixandmaintainmeaningitcouldbeusedindeepwateronfloatingstructuresfarfromshore.Ifwedothatitopensupaglobaldeepwateroffshorewindmarkethesaid.ThetechnologycouldcontrolrisingCO2emissionsinthedevelopingworldwheretheneedtosavemoneyforcespeopletoadopttopollutingtechnologiessuchasdiesel.ThecompanyhastestedthetechnologyonasmallscaleinEssexandwillmoveitsheadquarterstoGlasgowtopreparefornextyear'slaunch.Ithaswonplanningpermissionfora500KWdemonstrationsystem.TheU.K.'sgreenenergytradebodyRenewableU.K.welcomedthetechnologybutwarneditwasnotasilverbullet.ThedeputychiefexecutiveMarSmithsaid:Thisisanambitiousprojecttodevelopwindpoweratextraordinaryheightsanditshowsthelevelofnewideaswithintherenewableindustry.Kitepowerisatanearlystageofdevelopmentanditwilltaketimetoseehowthetechnologyprogresses.Anywaywewillneedawiderangeofenergysourcesinthefuturetomeetourneedsinanenvironmentallyfriendlyway.28.Whatisthebiggestadvantageofkitepower?A.Itslowcost.B.Itswideuse.C.Itsgreatflexibility.D.Itshighquality.29.IntheeyesofAinsworthkitepowercan.A.getridofairpollutionB.beconvenienttouseC.helpexploretheoceanD.dealwithwatershortage30.Whatdoestheunderlinedphraseasilverbulletmean?A.ascientificideaB.apracticalwayC.aquicksolutionD.asuitablechoice31.Whatistheauthor'spurposeinwritingthepassage?A.Toargueforcleanerenergies.B.Tointroduceanewwaytogetenergy.C.Toadvertiseagreatenergycompany.D.Tocomparedifferentenergyresources.
3分Weareallattractedbymagicianswhoseemtobeabletoperformimpossibleactssuchaspullingwhiterabbitsoutofhatsandcuttingawomaninhalf.Likeallperformancesthoughamagician'srealsecretisinpracticingthoroughlybeforeshowinganyonetheirtricks. MagicMatchsticks Youwillneed •severalmatchsticks •ahandkerchiefwithhems折缝alongtheedges Whattodo 1.Showtheaudienceamatchstick. 2.Takeacleancottonhandkerchieffromyourpocketandshakeitoutshowingbothsidestoproveyouarenothidinganything. 3.Wrapthematchstickinthehandkerchief. 4.Askoneoftheaudiencememberstofeelthematchstickinsidethehandkerchiefandbreakit. 5.Shakethehandkerchiefallowingtheunbrokenmatchsticktofallontothefloor! Thesecret Beforeyoubegintheperformanceslipamatchstickintothehemofthehandkerchief.Whenyouasksomeonetobreakthewrapped﹣upmatchstickmakesurethattheybreaktheonehiddeninthehemwhentheyfeelittheywillthinkitistheonetheysawyouwrapintothehandkerchief. It'sagoodideatohavetwoorthreehandkerchiefswithmatchsticksalreadysecretlyinthehemsasyouraudienceissuretobeshockedandaskyoutodothetrickagain.Butdon'tletthemrealisethatyouarechanginghandkerchiefsortheymaybecomesuspicious! 66.Ifamagicianwantstosucceedonthestageheorshemust. A.practicethemagiccompletely B.havesomemagicalmatchsticks C.recitetheprocessthoroughly D.keepthesecretunknownforever 67.Whichofthefollowingpicturesshowsthestep3? 68.OneofthesecretsofMagicmatchsticksisto. A.makethehiddenmatchstickbrokeninthehem B.keepaudiencefrombeingsuspiciousduringthemagic C.inviteoneoftheaudiencetobreakthematchstick D.confusethetwodifferentmatchsticksinthehandkerchief.
3分 JapaneseandAmericanComicBookHeroes Tosomepeopletheideaofreadingcomicbooksseemschildish.Tootherscomicsarenothingmorethan41oftheirhappychildhoods.Butforpeoplewholovecomicbookstheycanbean42escapefromtherealitiesofmodernlife.Comicsareableto43readerstobrightly﹣coloredimaginaryworldswheresuperheroesfightwithsuper﹣monsterswheregoodcansucceedoverbadandwhereheroescansavethousandsofinnocentpeoplefromthebadguys.ComicsarepublishedgloballybutJapaneseandAmericanversions44themarketdespitethefact﹣orperhapsbecause﹣theydifferinsomeways. Onedifferenceistheappearanceoftheheroes.Manga[日语]漫画heroeslooksmalleryoungerandmoreimmaturethantheirall﹣conqueringAmericanoneswhohavesportmusclesandwearthemedclothes.AlsomangaheroesrarelylookJapaneseandthestoriesarenottypicallysetwithinaJapanese45.ConverselyAmericancomicheroesdespitetheirmasksareproudlyAmericanandareadmiredfortheir46todefendU.S.cities.ImportantlyinJapanamangacreatorcanhimselforherselfbecomeanationalherobecomingalmostasfamousasthecharacters. Probablythebiggestdifferenceisthe47.Upuntilthe1950sAmericancomicbookswerereadbybothchildrenandadultswithpopulartitlessuchasSupermansellingasmanyashalfamillioncopiespermonth.The48ofTVhoweverledtoalong﹣termdeclineinsalessothatnowtheaveragereaderofanAmericancomicbookisateenageboywithaninterestinsuperheroes.InJapanthe49couldn'tbegreater.Theremangasalesarestill50reachingashighas7billioneachyearlargelybecausereadersrangefromyoungboysandgirlsuptomiddle﹣agedmenandwomen.AsurveybytheMainichinewspaperestimatesthat42percentofwomenaged20to49readcomics.MangaformenandboysliketheAmericancomicstendtobeaction﹣orientedwhilemangaforwomenandgirlstendtobefocusedonrelationships.
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