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某同学利用如图所示的装置探究什么情况下磁可以生电．下列说法错误的是（ ）
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某同学探究什么情况下磁可以生电的实验装置如图所示ab是一根直铜丝通过导线接在量程为3A电流表的两接线
感应电流太小，无法使指针明显偏转
铜丝太细，换用铜棒便能使指针明显偏转
应把ab改为向左运动
应把ab改为上下运动
某同学探究什么情况下磁可以生电的实验装置如图5所示ab是一根直铜丝通过导线接在量程为3A电流表的两接
感应电流太小，无法使指针明显偏转
应把ab改为向左运动
应把ab改为上下运动
铜丝太细，换用铜棒便能使指针明显偏转
如图是探究什么情况下磁可以生电的实验装置下列情况可以产生电流的是
导体棒不动，让磁体上下移动
磁体不动，让导体棒沿ab方向前后运动
磁体不动，让导体棒绕a端在水平面内转动
让导体棒和磁体以相同速度一起向左移动
某同学探究什么情况下磁可以生电的实验装置如图所示ab是一根直铜丝通过导线接在量程为3A电流表的两接线
感应电流太小，无法使指针明显偏转;
应把ab改为向左运动;
应把ab改为上下运动;
铜丝太细，换用铜棒便能使指针明显偏转.
如图所示是课本中探究什么情况下磁可以生电的实验装置闭合开关让导体ab在磁场中填水平方向左右或竖直方
如图所示是小明探究在什么情况下磁可以生电的实验装置其中能够使电流表指针发生偏转的是
导线AB不动，换用磁性更强的永磁体
磁体与导线AB一起向右移动
磁体不动，导线AB上下移动
导线AB不动，磁体左右移动
某同学探究什么情况下磁可以生电时所用的器材连接的电路如图所示．当他闭合开关后下面做法能使灵敏电流计
如图所示是小明探究在什么情况下磁可以生电的实验装置其中能够使电流表指针发生偏转的是
导线AB不动，换用磁性更强的永磁体
导线AB不动，磁体左右移动
磁体与导线AB以相同速度一起向右移动
磁体不动，导线AB上下移动
如图所示是小滨探究什么情况下磁可以生电的实验装置ab是一根直铜丝通过导体与电流表的3-两接线柱相连当
没有感应电流，指针不偏转
感应电流太小，无法使指针明显偏转
应把ab改为迅速向左运动
应把ab改为迅速上下运动
某同学用如图所示的实验装置探究磁生电闭合开关当直导线ab迅速向下移动时未发现电流表指针偏转原因是
如图所示在探究什么情况下磁可以生电的实验中保持磁体不动1若使导线ab竖直向下运动则灵敏电流计指针2若
如图所示的是探究什么情况下磁能生电的实验装置1该装置中的电流表的零刻度在位置电流表的作用是检验感应电
如图所示在探究什么情况下磁可以生电的实验中保持磁体不动若导线ab水平向右运动则灵敏电流计指针向左偏转
若导线ab水平向左运动，则灵敏电流计指针向右偏转
若导线ab竖直向上运动，则灵敏电流计指针向左偏转
若导线ab竖直向下运动，则灵敏电流计指针向左偏转
若导线ab斜向上运动，则灵敏电流计指针不会偏转
小兵利用如图所示的实验装置来探究什么情况下磁可以生电AB是一根直铜丝用导线与电流表连接好闭合开关后下
让导体AB沿水平方向左右运动
让导体AB静止在蹄形磁铁内
让导体AB沿竖直方向上下运动
让蹄形磁铁沿竖直方向上下运动
如图所示在探究什么情况下磁可以生电的实验中保持磁体不动1若使导线ab竖直向下运动则灵敏电流计指针2若
如图所示在探究什么情况下磁可以生电的实验中导线ab与灵敏电流计组成闭合电路蹄形磁体放置在水平桌面上保
导线ab静止不动，电流计指针不偏转
导线ab在水平方向运动，电流计指针可能会发生偏转
导线ab在竖直方向运动，电流计指针可能会发生偏转
电流计指针的偏转方向与导线ab的运动方向有关
如图所示是探究什么情况下磁可以生电的实验装置将导线ab灵敏电流表用导线连接成闭合电路让导线ab在磁场
某同学探究什么情况下磁可以生电的实验装置如图5所示ab是一根直铜丝通过导线接在量程为3A电流表的两接
感应电流太小，无法使指针明显偏转
应把ab改为向左运动
应把ab改为上下运动
铜丝太细，换用铜棒便能使指针明显偏转
图5
如图所示是小明探究在什么情况下磁可以生电的实验装置其中能够使电流计指针发生偏转的是
ab不动，磁体上下移动
ab不动，磁体左右移动
磁体不动，ab上下移动
磁体与ab一起向右移动
根据图15所示的实验装置图在下面的空格处填入相应的内容1甲图验电器的工作原理是___________
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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.
1分shockedtheworldwasthatNorthKoreacarriedoutitsnuclearbombtestagain. A.Which B.Whatever C.What D.That
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
1分Researchershaven'thowbirdfluspreadsfromhumantohumanworldwide. A.figuredout B.turnedout C.putout D.checkedout
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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