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在“探究水沸腾时温度变化的特点”的实验中，ab两组同学在同一间教室里，分别用如图甲所示的相同装置进行实验，并根据实验数据绘制了如图乙所示的图象． （1）实验中需要的测量工具是温度计和 ．分析...
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在探究水的沸腾实验中1安装实验器材时应按照填自上而下或自下而上的顺序进行2水沸腾时温度计示数如图14
在探究冰的熔化和水的沸腾实验中小明用了下面两组实验装置如图甲乙所示根据实验数据绘出了水沸腾时的温度﹣
在做观察水沸腾的实验时1晓彤小组同学用的是如图甲所示装置他们的实验存在的问题是①②写出两点2图乙是小
在做观察水沸腾的实验时甲乙丙三组同学分别从A.B.两套器材中任选一套来完成实验实验室已准备多套A.B
小明和小华两组同学选用相同的实验装置完成探究水沸腾时温度变化特点的实验如图甲所示他们分别绘制的水的温
在探究冰的熔化和水的沸腾实验中小明用了如图甲乙所示的两组实验装置1为探究水的沸腾实验他应选择的装置是
在做探究水沸腾时温度变化特点的实验中1图甲中A.B.C.三种读取温度计示数的方法其中正确的是图乙中温
在做观察水沸腾的实验时甲乙丙三组同学分别从A.B.两套器材中任选一套来完成实验实验室已准备多套A.B
在探究水的沸腾的实验中甲乙两组同学分别使用A.B.两套装置如图20来完成实验.1图21ab所示的是观
在探究冰的熔化和水的沸腾实验中小明用了下面两组实验装置如图甲乙所示根据实验数据绘出了水沸腾时的温度—
在探究冰的熔化和水的沸腾实验中小明用了下面两组实验装置如图20甲乙所示根据实验数据绘出了水沸腾时的温
某同学用图甲所示的实验装置探究水沸腾时温度变化的特点.1实验中观察到如图乙中ab所示的两种情景其中水
某班同学分组做探究水沸腾时温度变化特点的实验中A.组同学用的是如图22甲所示装置他们测出的水温将偏_
在探究水的沸腾的实验中甲乙两组同学分别使用A.B.两套装置如图甲来完成实验1图乙中ab所示的是观察水
某班同学分组做探究水沸腾时温度变化特点的实验中1A组同学用的是如图甲所示装置他们测出的水温将偏选填高
在探究水沸腾时的温度变化的特点的实验中两组同学在相同的酒精灯在相同的环境中进行实验并根据实验数据绘
在探究水沸腾时的温度变化的特点的实验中两组同学在相同的环境中用如图甲所示的装置分别进行实验并根据实验
某班同学分组做探究水沸腾时温度变化特点的实验中1A.组同学用的是如图甲所示装置他们测出的水温将偏__
在探究水的沸腾实验中1安装实验器材时应按照选填自上而下或自下而上的顺序进行2甲乙两组同学绘制出的温度
在探究水的沸腾实验中1安装实验器材时应按照选填自上而下或自下而上的顺序进行2甲乙两组同学绘制出的温度
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20分假设你是红星中学高三学生李华.请根据以下四幅图的先后顺序写一篇英文周记记录上周你们班级参加学校红五月合唱比赛的全过程. 注意词数不少于60. 提示词红五月歌咏比赛theRedinMayChorusContest
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7.5分Writersusedtoapproachpublisherstohavetheirworkreadbythepublic.Nowtheycansimplypostthemandfindmillionsofinstantaudience. AfterbreakingupwithherboyfriendBaoJingjingstartedmakingupalovestorysimplytodistract转移herattention.Herstoryofagirlsufferingthepainlikehersprogressedquicklyattractingmanyreaders. WhenBaostoppedwritingasshereunitedwithherboyfriendshewashastenedtocontinueasreaderswantedtoknowwhathappenednext.Baofinisheditsoon.Itbecamesopopularthatitwasturnedintoabest﹣seller.InadditionBao'snovelwaslateradaptedintoasuccessfulmovie. Bao'sstoryisonlyoneofmanyInternetnovelsthathavelandeddealsforphysicalbooksTVshowsandfilms.UnliketraditionalwriterswhoburiedthemselvesintheirbooksforyearssomeyoungwriterslikeBaohavegotreadersrapidlyonlineandfindovernightsuccess. Baoadmitshersuccesswasunexpected.Shestillremembershowsurprisedherparentswerewhensheproudlygavethemhercopyrightearnings.Onlineliteratureforumsareplatformsforgrassrootswriterstosucceed. InrecentyearsZhangWeiknownasTangjiasanshaohasearned177millionyuanbyhisfingersthoughworkingasanauthorwasbeyondhisdreams.HetoppedthelistofwealthiestChineseInternetnoveliststwiceandwastheonlyonlinewritertobelistedonthe2014ForbesChineseCelebrityList. Headmitsthatheisoneofthefewwritersatthetopofthepyramidwhilemostonlinewritersremainunknown.Howeverhethinksthathissuccesscanbeachievedbyothersaslongastheywritehardenough. 28.WhatdoweknowaboutBaoJingjingaccordingtothepassage. A.BaoJingjing'sfirstonlinestorywasturnedintoaTVshow. B.BaoJingjingdidn'treallyexpecthersuccessovernight. C.BaoJingjingdidn'tfinishherfirstonlinelovestory. D.BaoJingjing'sparentsdidn'twanthertobeawriter. 29.TheunderlinedwordshastenedinParagraph3probablymeans. A.permitted B.forced C.urged D.forbidden 30.WhatcanweinferfromwhatZhangWeisaysinthelastparagraph? A.Fewwordsmanydeeds. B.Firsttryandthentrust. C.Harmsetharmget. D.Nopainsnogains.
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15分 A Ilovemusic.WhenIwas16IformedmyfirstbandcalledFrog.Atthebeginningwedepended1playinginstrumentsinthestreettoearnmoney.Thenweworefalsebeardspretendingtobefamousmusicians.Inadditionweaddedhumorousactstoourperformancesandplayedjokesononeanother.Soonourfunnyjazzbecamefamousandwe2invitetoperformeverywhere.Afterwardswemadearecordinastudio.Aboutonemillion3copyweresoldandwebecamerichandpopular. B VoyagesofpeoplefromEnglandplayed4importantpartinspreadingtheEnglishlanguage.AtpresentEnglishisfrequentlyspokenasanofficialorcommonlanguageinmanycountries.5baseonBritishEnglishEnglishspokeninthesecountriescanbeunderstoodwellbynativeEnglishspeakers.ButactuallyEnglishhasbeenchanging6gradualintermsofaccentsspellingsexpressionsandvocabularyusage.Becauseofthesefactsyoucanrecognizethedifferencesandtellfromwhichcountryaforeignercomes. C CharlieChaplinwasanextraordinaryperformer7actedinanddirectedmanyoutstandingcomedies.Fewwereboredin8watchhismoustachehisgesturesorhisentertainingreactionswhenchasedbydetectives.Beingdrunkslidingonabananapeelorwhisperinghisownfailurestonobodyhemade9wefeelmoresatisfiedwithourlifewithoutevenhavingtouseoneword.Hisuniquesenseofhumor10astonishpeopleacrosstheworldeventillthisday.
请结合如图1所示实验常用装置回答有关问题． 1写出图中标有字母的仪器名称b．． 2若用硫酸铵固体和熟石灰混合加热制取氨气应选用的发生装置是反应化学方程式是．如果用D装置收集氨气应在水面上方． 3硫酸厂尾气中常有二氧化硫这种有毒气体为防治污染最好用填序号【从①氢氧化钠溶液②氢氧化钙溶液③石灰浆中选一种】来吸收． 4实验室用装置B和D制备干燥的二氧化碳气体时从长颈漏斗中加入的试剂是填试剂名称下同D中盛放的试剂是． 5如图2所示为某种“微型”实验装置如果G处装盐酸H处放少量铁屑则加热处的现象为．用微型仪器进行实验除试剂用量极少以外还可能具有的优点是写1点．
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1分﹣Ohdear!Lookattheterriblesmogthesedays! ﹣Everyone'seffortcounts.WefireworksonNewYear'sEve! A.needn'thaveplayed B.couldn'thaveplayed C.mustn'thaveplayed D.shouldn'thaveplayed
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铜器长时间露置在潮湿的空气里表面都会有一层绿色的物质俗称铜绿化学名称碱式碳酸铜[Cu2OH2CO3]．根据其化学式得出铜生锈可能是铜与空气中的氧气水和共同反应的结果．【问题探究】研究小组欲探究一表面生锈的铜片中铜绿的质量分数称取该样品10.0g放入D中进行如如实验【查阅资料】1CEF中装有碱石灰CaO与NaOH的固体混合物．2图中B处为两个单向阀推注射器时A1关闭A2处打开拉注射器时A1打开进空气A2关闭推拉注射器的作用是鼓入空气．【实验步骤】①组装好装置②反复推拉注射器③称量E的质量④关闭弹簧夹加热D处试管直到反应不再进行⑤打开弹簧夹再次反复缓缓推拉注射器⑥再次称量E的质量．【实验分析】1在操作①中同学们一致认为缺少了一个重要步骤在实验前应先．2装置C的作用是．3步骤⑤的作用是若不进行步骤⑤的操作则所测得的铜绿的质量分数填偏大偏小无影响．
1分Heseemsonitfordaysforitisalmostfinished. A.tohaveworked B.havingworked C.towork D.working
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类推是化学学习中常用的思维方法．现有以下类推结果①酸碱中和反应生成盐和水所以生成盐和水的反应一定是中和反应②碱的水溶液显碱性所以碱性溶液一定是碱溶液③氧化物都含有氧元素所以含有氧元素的化合物一定是氧化物④有机物都含碳元素所以含碳元素的化合物一定都是有机物．其中错误的是
下列属于物理变化的步骤是
30分LastweekendIdecidedtotreatmyselftorelaxationbyreadingamagazine.AsusualIlookedthroughthefrontpagesof36womenwearingdesignerclotheswithadspromisingittobeBestoftheBest.Ireadthead.37insteadofofferingadviceonhowtolivewelltheentirearticle38expensivetreatmentsthatslowtheeffectsofgettingolderwhilefoolingothersintothinkingyoustayyoungnaturally.What?Isthateven39? Youmayhavealreadyguessed﹣Iseldommakeup40buyafewcreamsformyskinandwearonlyoneortwopiecesof41.InsteadgiventhechoiceIspendmymoneyontravellearningexperiencesfunandafewcausesIsupport.FortunatelymyhusbandThomnotonlylikesmethisway42he'smesameaswell.43comesnaturallytousbecausewebothprefer44experiences. TherewasaTVshowinthe1980'scalledFernando'sHideaway.RegardlessofwhomthehostFernandowas45intheshowhewouldalwayssayYou46marvelous棒极了!AndthatwasusuallyfollowedbyAsweallknowit's47tolookmarvelousthanfeelmarvelous.Ikneweveryoneusedtolaughatthatshowbecausewhatmadeitsoridiculouswashowitpointedouttheobvious48ofgraspingforoutsideappearances49realfeelings. SomewomenouttheremightbetellingthemselvesI50possiblyfeelgoodifIdon'tlookgood.Really?Yourlifeis51tofeelgoodtoyou.Wecancontrolthewaywefeelbycontrollingourthoughts.Insteadof52outsidecircumstancestobringaboutresponsesinusandmakeushappyornotwecanputourtimeattentionandresourceson53canaffectinside.Nooneelseknowsyourreasonforbeinghappy.Youdo.Yourhappiness54youtoit.Whenyoutravelalongyour55tojoyyourconversationisofjoyyourfeelingsareofjoy﹣you'reontherightway. 36.A.casual B.special C.ordinary D.attractive 37.A.Unfortunately B.Frequently C.Hopefully D.Fortunately 38.A.focusedon B.leftout C.commentedOn D.madeout 39.A.necessary B.possible C.convenient D.essential 40.A.never B.often C.usually D.just 41.A.clothing B.jewelry C.decoration D.furniture 42.A.and B.yet C.but D.although 43.A.Happiness B.Tiredness C.Beauty D.Fortune 44.A.common B.cultural C.traveling D.quality 45.A.performing B.requiring C.interviewing D.working 46.A.look B.sound C.smell D.feel 47.A.worse B.better C.less D.funnier 48.A.puzzle B.mistake C.idea D.progress 49.A.morethan B.lessthan C.ratherthan D.otherthan 50.A.mustn't B.couldn't C.needn't D.daren't 51.A.supposed B.permitted C.requested D.promised 52.A.letting B.allowing C.recommending D.preventing 53.A.which B.that C.what D.why 54.A.guides B.sends C.misleads D.applies 55.A.mind B.reason C.time D.path
8分Thereare5.25trillionpiecesofplastictrashintheworld'soceansandeachyear8milliontonsofplasticareaddedtothefigure.ThoughtheoceansseemvastenoughtostomachalotofplasticthelevelofwasteisstartingtoreachacrisispointAccordingtoanewreportbytheOceanConservancyby2025theoceancouldcontainonetonofplasticforeverythreetonsoffish. Allthesefloatingbitsofplasticnotonlydisruptmarineecosystemsbutalsopoisontheglobalsupplyofseafood.It'sreachingcrisisproportionssaysAndreasMerklCEOoftheOceanConservancy.Plasticbreaksdownintosmallpiecesthatlooklikeplankton浮游生物andiseatenbyeverythingfromplanktontowhales. Thenewreportcallsforafocusonimprovingwastemanagementsystemsinahandfulofdevelopingcountriesthataccountfortheplasticleakageintotheocean.ChinaIndonesiathePhilippinesThailandandVietnamcontributemorethanhalfoftheoceans'plasticsincetheirwastefacilitieshaven'tkeptupwithrapidindustrialization. Howcancountriesreducetheleakageofwasteintotheocean?TheOceanConservancyreportsuggeststhatbyprovidingmorewastecollectionservicesclosingtheleakagepointswithinthecollectionsystemgettingridofwastewitheffectivelandfillandbuildingmorerecyclingfacilitiestheplasticsleakagecouldbecutby50%by2020. It'snotjustanenvironmentalist'sdaydream.Coca﹣ColaandDowChemicalalongwithsomeothermultinationalcompanieshavejoinedforceswithOceanConservancytofightoceanpollution.We'recommittedtoworkingtowardafutureofaplastic﹣freeocean.Companiesdon'tmakeplasticwiththeintentionofitendingupintheoceanandweacknowledgethestrongroleindustrymustplayinordertohelpeliminateoceanplasticwasteby2035.SaysaDowChemicaldirector. Whilebuildinglandfillsandincinerators焚化炉acrossthesedevelopingcountriesmightnotbeprettyit'sfarmoreenvironmentallyfriendlythanlettingwasteslideintotheworld'soceans.SaysAndreasMerkl. 1Fivedevelopingcountriesaremostlyresponsibleforplasticleakagebecause. A.therearetoomanyfactoriesinthosecountries B.theyproducethemajorityofthewasteworldwide C.theirwastefacilitiesfailtoadapttorapidindustrialization D.theircitizensdon'tmakegooduseofwastemanagementsystems 2TheunderlinedwordeliminateinParagraph5means. A.end B.increase C.remain D.reduce 3Fromthelasttwoparagraphswecanlearnthat. A.manycompanieshavebeguntoplayaroleinfightingoceanpollution B.environment﹣friendlyplasticswillbeinventedbymultinationalfactories C.developingcountrieswillbemuchmorebeautifulwithaplastic﹣freeocean D.landfillsandincineratorshavegreatlyreducedplasticleakageintotheocean 4Themainpurposeofthepassageisto. A.suggestcountrieslearnmoreaboutoceanicwaste B.persuadecompaniestoproducefewerplasticgoods C.warnpeopleofthedangerofusingtoomanyplasticitems D.informpeopleabouttheseriousissueofplasticintheocean
10分Manyseniorsfeelpressuredtogostraightfromhighschooltocollege﹣butCamdenOlsonwhograduatedfromLatinSchoolofChicagointheUSlastyeardidn'tgivein.ShedecidedtospendagapyearraisingaguidedogforGuidingEyesfortheBlindinMaine. Thenonprofitprovidestrainedguidedogstoblindandvisuallyimpairedpeople.IcansayI'mlivingthedreamOlsonsaid.ThisissomethingI'vealwayswantedtodo. TakingayearoffbeforecollegecommonlyknownasagapyearisbecomingmoreandmorepopularamongAmericanteenagers.AccordingtoasurveybytheAmericanGapAssociationenrollment注册intheseprogramsgrew27percentbetween2012and2013.Somestudentsusetheyearofftofigureoutwhattheywanttodotraveltheworldorsavemoneyforcollege. Olsonisusinghertimetopursueapassionshe'shadsince7thgrade.ForyearsshekeptaneyeonguidedogservicesuntilshecameacrosstheopportunityatGuidingEyes.WithsupportfromherfriendsfamilyandteachersOlsonwentforit. Olson'svolunteerworkcentersaroundDerbyaone﹣year﹣oldblackdog.Myjobistoraisehimtobewell﹣manneredandsocializedshesaid.Guidedogshavetoignoreanydistractions.Theygoeverywherewiththeirvisuallyimpairedhandler.Theygiveablindpersonalotofindependenceandemotionalsupporttoo. Ofcoursethere'sanendinsightforDerbyandOlson'sclosebond.WhenDerbycelebrateshisowngraduationOlsonwillhavetosaygoodbyetohim.NodoubttherewillbetearsbutassuminghepassesIwillbesohappyforhimtobecomeaworkingdogshesaid. WhilesomelookatgapyearsinnegativelightOlsonsaidshe'sseenmajorsuccess.Infactshe'llbeattendingPrincetonUniversitythisfallandisthinkingaboutmajoringinecologyandbiology.IthinkI'malreadysomuchmorematurethanIwasandawareofwhatreallymattersshesaid.Somanykidsdocomebackfromgapyearsalotmorefocusedandprepared. 56.WhatisthemeaningoftheunderlinedphrasegapyearinParagraph1?Nomorethan6words 57.WhydidCamdenOlsondecidetospendhergapyearworkingforGuidingEyes?Nomorethan10words 58.HowwillOlsonfeelwhenshehastosaygoodbyetoherdog?Nomorethan10words 59.WhatdidOlsonthinkofhergapyear?Nomorethan20words 60.Doyouwanttospendagapyear?Giveyourreasons.Nomorethan20words.
10分 OverthinkingtheSmallStuff? Howmanydecisionshaveyoumadeoverthelastdayweek…month?DriveorUber?Suitornosuit?ItalianorThai?iPhoneorHuawei? Whiletoday'sfreedomofchoicehasobviousbenefitstheconstantpressuretomakeperfectchoicescanoftenrobourfreedomheightenouranxietyandlowerourproductivity. 1Forstarterstryingtoperfecteverysingledecisionisa'missionimpossible'makingitprettyinvain.2Andfinallyresearchshowsthattryingtonaileverydecisionreducesourabilitytoperformatourbestandmakegreatdecisionsaboutthethingsthatreallymatter. Theironyisthatpeoplewhotrytomaketheperfectdecisioneverytimetendtosuffermoreanxietyabouttheirdecisionsfeellesssatisfiedwiththemafterwardandunsurprisinglyarelessproductivethanpeoplewhojustgowith‘goodenough'. ThehabitofaimingforthebestpossibleoptioneverytimeactuallyrobspeopleofsatisfactionandeffectivenesswroteBarrySchwartzontheParadoxofChoice.3Howeverthey'regenerallylesshappyaboutwhattheyeventuallydecideupon. Betterthantryingtomaximizeeverychoiceistomakea‘goodenough'choicethatmeetsabasiclevelofsatisfaction.Soyoudidn'tgetthebestpossiblehotelatthebestpossibleprice?Moveon.Sotheshadeofyellowyouchosetopaintthesunroomwasalittledark?Againmoveon!4. 5Thereasonisthattheyaren'twastingprecioustimeandenergyondecisionsthatdon'treallymatter.Soasyouthinkaboutallthedecisionsyouhavetomakeinthedayormonthaheadfocusyourprecioustimetalentsandattentiononthethingsthattrulymatter. A.Thereareafewreasonsforthis. B.Butsomeresearchersdonotagreewithit. C.Secondlyitcanbementallyandemotionallyexhausting. D.Muchmoreimportantissuesarewaitingforyourattention. E.Besidesthateverydecisionyoumakemaydisappointyou. F.Such‘maximizers'asSchwartzcallsthemspendmoretimeandenergyreachingadecision. G.Schwartzfoundthat'satisficers'wholivebythe‘goodenough'ruleactuallygetmoredone.
15分假定你是高三学生李华.请给英语老师Jack写一封信表达对他的感谢.内容包括 1.感谢的理由.可结合具体事例如学习中经历的困难或取得的成绩 2.表达真挚的感谢和祝福. 注意1.词数80左右开头和结尾己为你写好 2.可适当增加细节使行文连贯. DearJack I'mLiHuaoneofyourstudents. Yourssincerely LiHua.
8分Iworkasthereceptionmanageratmyhotel. Abookingcameinafewweeksagowithanoteattachedthataguestwouldbetravellingwithherdeaffather.Thisnotehelpedusinpreparingfortheirarrival.AstheywouldbehereforanumberofdayshisdaughterwantedtomakehistriptoIrelandassmoothaspossible. UponseeingthisnoteandknowingIwouldbetheonetochecktheminIdecidedtolearnsomeverybasicsignlanguage.Igreetedtheguestinmyusualfashionaskingforthesurnameonthebooking.OnceIheardthenameIimmediatelyrealizedwhowasstandinginfrontofme. IhadbeenlearningfortwoweekshowtosayWelcometoIreland.Mysignlanguageisterriblebutpleaseifyouneedanythingduringyourstayjustletmeknowandwewillhelpyou. Ismiledatthefatheranddaughterinfrontofme.TurningtothefatherIgreetedhiminASLAmericanSignLanguageandbeganthebitIhadlearnedforhim.HisdaughterbrokedowncryingandtoldmeIwassweet.Butthefatherjustsmiledandwassohappy.Honestlyseeinghisreactionwasenoughforme.ItwasabsolutelyworththelastfewweeksoflearningbasicASL. SadlyIwasn'tworkingthedaytheycheckedoutbuttheyleftagiftformeasmallboxwithsomechocolatesandabookonASL.InsidewasanotesayingThankyouverymuchforwhatyoudid.Myfatherhasbeeninamazingspiritsfromthetimeyoucheckedusinandinsistedwegetyouagiftbeforeweleft.Youhavenoideahowmuchthismeanttomyfatherandmeandwecan'tthankyouenough.You'vemadehistripveryspecialwithonesimplegesture. IcriedforasolidfiveminuteswhenIcameintoworkthenextdayandfoundthisgiftinmylocker. 1Thedaughterleftanotewhenbookingthehotelinorderto. A.askforspecialserviceforherself B.givesomeusefuladvicetothehotel C.expressgratitudetothehotelmanager D.makeherfather'stripmorecomfortable 2Thedaughtercriedwhentheycheckedinbecause. A.theauthor'ssignlanguagewasreallyterrible B.herfatherwasunwillingtoliveinthathotel C.sheappreciatedwhattheauthorhaddoneforherfather D.theauthorwouldn'tbeworkingwhentheycheckedout 3Seeingthefather'sreactionduringcheck﹣intheauthorprobablyfelt. A.thankful B.satisfied C.disappointed D.regretful 4Fromthispassagewecanknowthat. A.theauthormadethedaughter'scheck﹣outsmooth B.theauthorwasdeeplymovedbyanunexpectedgift C.thedaughtercriedforfiveminutesbeforetheyleft D.thedaughteraskedtheauthortolearnsignlanguage
在pH＝1的溶液中不能大量共存的一组离子是
将一定量xFeSO4•yNH42SO4•6H2O晶体加入到过量NaOH溶液中加热生成NH30.85g假如生成NH3的全部逸出过滤洗涤灼烧得Fe2O3固体2.0g．则xy的关系正确的是
T℃时将少量生石灰放入一定质量的饱和石灰水中搅拌并冷却至原温度得到的溶液与原溶液相比下列物理量前后不变的是 ①溶质的质量②溶剂的质量③溶液的质量④溶质的质量分数⑤溶解度．
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