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有A、B、C、D四种元素，其原子结构示意图表示如下 （1）上图中具有相对稳定结构的原子是 （2）B、D属于同种元素是因为 ，但化学性质不同是因为 ．
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下列是元素周期表中的部分信息A.B.C.D.分别是4种粒子的结构示意图.请根据图中信息及相关内容填空
下列四种粒子的结构示意图中说法正确的是①②③④
②④表示的是原子
①表示的元素在化合物中通常显+2价
①③④都具有相对稳定结构
它们表示四种不同的元素
如图中A.B.C.D是四种粒子的结构示意图E是银元素在元素周期表中的信息.请回答下列问题1图中A.B
如下图所示A.B.C.三种元素的粒子结构示意图依次为1当A.B.为原子结构示意图时x＝y＝2C.表示
原子结构示意图是化学上描述原子结构的一种重要模型.如图是原子序数为1～18的元素的原子结构示意图请根
根据下列四种粒子的结构示意图所获取的信息正确的是
它们表示四种元素的原子
①③④表示的是阳离子
④表示的元素是非金属元素
②表示的元素在化合物中通常显＋2价
根据下列四种粒子的结构示意图所获取的信息正确的是
它们表示四种原子
①④表示的是阳离子
②表示的元素是非金属元素
②表示的元素在化合价中通常显示+2价
有五种粒子的结构示意图1在上面的结构示意图中表示原子结构的是填序号下同表示离子结构的是2在上面的结构
有A.B.C.D四种元素其原子结构示意图表示如图1D元素的名称为D元素与图中填写字母序号元素的化学性
下列四种粒子的结构示意图中说法正确的是
它们表示四种不同的元素
①表示的元素在化合物中通常显+2价
①③④都具有相对稳定结构
①④表示的是原子
现有五种粒子的结构示意图A.B.C.D.E.⑴在上面的结构示意图中表示原子结构的是填序号下同____
有A.B.C.D.四种元素已知A.元素原子的K.层和M.层电子数相同B.元素原子的L.层比K.层电子
1根据镁元素在元素周期表中的信息如下图所示回答问题镁原子的质子数为____________镁离子符号
有A.B.C.D.四种元素其原子结构示意图表示如下:1D元素的名称为D元素与上图中填写字母序号元素的
有A.B.C.D.四种元素其原子结构示意图表示如下A.B.C.D.⑴D.元素的名称为______D.
有A.B.C.D.四种元素其原子结构示意图表示如下:1D元素的名称为D元素与上图中填写字母序号元素的
有A.B.C.D.四种元素其原子结构示意图表示如下A.B.C.D.1上图中具有相对稳定结构的原子是2
下列四种粒子的结构示意图中说法正确的是①②③④
②④表示的是原子
①表示的元素在化合物中通常显+2价
①③④都具有相对稳定结构
它们表示四种不同的元素
有A.B.C.D四种元素其原子结构示意图表示如下A.B.C.D.⑴D元素的名称为______D元素与
下列四种粒子的结构示意图中说法正确的是
它们都表示四种不同的元素
②表示该元素的原子在与其它元素的原子化合时易失去2个电子
①③④表示的元素都是非金属元素
①④表示的是阳离子
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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
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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.
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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.
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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.
已知抛物线y＝﹣x2+bx+c的对称轴为直线x＝1其图象与x轴相交于AB两点与y轴相交于点C03． 1求bc的值 2直线1与x轴相交于点P． ①如图1若l∥y轴且与线段AC及抛物线分别相交于点EF点C关于直线x＝1的对称点为点D求四边形CEDF面积的最大值 ②如图2若直线1与线段BC相交于点Q当△PCQ∽△CAP时求直线1的表达式．
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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