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额定电压均为6V的甲、乙两灯，I﹣U图线如图所示．下列说法正确的是（ ）
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甲和乙两灯的额定电压均为6V如图是两灯的电流随其两端电压变化的曲线.现将两灯串联后接在某一电路中要使
甲和乙两灯的额定电压均为6V如图所示是甲乙两灯的电流随其两端电压变化的曲线.现将两灯串联后接在某一电
甲和乙两灯的额定电压均为6V如图所示是甲乙两灯的电流随其两端电压变化的曲线则以下说法正确的是
甲乙两灯丝的电阻均为定值电阻
电压相同时，甲灯的电阻大于乙灯的电阻
乙灯的额定功率大于甲灯的额定功率
将两灯串联，使其中一个灯泡正常发光，则电源电压最大为8V
有两个不同品牌的甲乙白炽灯均标有10V14W由实验测量结果作出的U-I图象如图所示用实线表示甲灯图象
甲乙两灯的额定电压均为9V测得两灯电流与电压变化的关系图象如图所示当把两灯并联在4V电源上时甲的电阻
甲和乙两灯的额定电压均为6V图4是甲乙两灯的电流随其两端电压变化的曲线现将两灯串联后接在某一电路中要
甲和乙两灯的额定电压均为6V如图9是甲乙两灯的电流随其两端电压变化的曲线现将两灯串联后接在某一电路中
甲乙两灯的额定电压均为9V.测得两灯电流与电压变化的关系图像如图所示当把两灯并联在4V.电源上时甲的
甲乙两灯的额定电压均为6V测得两灯的电流与电压关系图像如图所示．当乙灯的实际功率是2.4W时它两端
4V 4.2W
4V 2.1W
6V 2.8W
6V 4.2W
甲乙两灯的额定电压均为9V测得其电流与电压变化的关系图象如图3所示则甲灯的额定功率为W.若将甲乙两灯
甲乙两灯的额定电压均为9V测得其电流与电压变化的关系图像关系图像如图所示则甲灯的额定功率为___▲_
甲和乙两灯的额定电压均为6V如图所示是甲乙两灯的电流随其两端电压变化的曲线现将两灯串联后接在某一电路
已知甲灯标有6V 3W字样乙灯的额定电压是3V甲乙两灯的U-I关系如图所示则乙灯的额定功率是W．确保
甲和乙两灯的额定电压均为6V如图是两灯的电流随其两端电压变化的曲线.现将两灯串联后接在某一电路中要使
甲乙两灯的额定电压均为9V测得其电流与电压变化的关系图像关系图像如图所示则甲灯的额定功率为___▲_
甲和乙两灯泡的额定电压均为6V若甲乙两灯泡的电流随其两端电压变化的图像如图所示.现将两灯串联后接在某
6V
8V
10V
12V
有两个不同品牌的甲乙白炽灯均标有10V14W两盏灯正常工作时的电阻是Ω.由实验测量结果作出的U-I图
甲乙两灯的额定电压均为9V测得两灯的I﹣U关系图象如图所示甲灯的额定功率为W．当把两灯并联在6V电
甲乙两灯的额定电压均为6V如图是甲乙两灯的电流随其两端电压变化的曲线若将两灯并联在某一电源两端干路中
甲乙两灯的额定电压均为9V测得其电流与电压变化的关系图像关系图像如图所示则甲灯的额定功率为_____
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10分Inourhyper﹣technologicalagethewayweinteractwithothersface﹣to﹣facetellsothershowwellweworkwithothersaswellasourabilitytomaintaingoodinterpersonalrelations.36Herearefivejobinterviewmistakesthatmillennials千禧一代oftenmakesoyoucanbesurenottomakethemtoo.1.OverusingthewordLikeEventhoughweallhaveproblemswithinsertingthewordintooureverydayspeechgivingoureveryotherwordwithlikehasimplicationsmillennialsmaynotevenbeawareof.372.ForgettingtoputyourphoneonsilentIfyourphoneconstantlypingsandmakesothernoisesduringyourinterviewthepersonyou'retalkingtowillnotbeimpressed.Youareagenerationthatalwayshasaphoneinhand.383.DressinginappropriatelyAlthoughworkattirenowtendsmoretowardcasualthanathree﹣piecebusinesssuitit'sstillincrediblyunprofessionaltoshowupinclothingthat'sclearlynotsuitablefortheoffice.4.TalkingtooproudlyInagenerationthatvaluestheindividualaboveanythingelseitcanfeelalmostlikesecondnaturetotalktoomuchaboutoneself.395.40ApreliminaryGooglesearchregardingthecompanyyouwanttoworkfortakesnomorethan5minutesbuttheknowledgegoesalongway.EventhoughweliveinanageofextremeconnectivityandInternetknowledgeoverloaddon'tforgettobrushuponyourfactsbeforemeetingupwithyourinterviewer.A.Itcanmakeusappearlikewe'reguessingourselvesnotconfident.B.Forgettingtheknowledge.C.Talkingtoomuchisadisadvantagesometimes.D.Remembertofindthebalancebetweensayingtoolittleandsayingtoomuch.E.Notdoingtheresearch.F.Nottakingsecondstomakesureitwon'tdisturbothersisasuresignofcarelessness.G.Thismakesthejobinterviewespeciallycritical.
通过一年的学习你能运用简单的装置和方法制取某些气体．如图是教案备课库常见气体的发生收集装置请你回答有关问题 1写出图中②的仪器名称 2实验室用石灰石和稀盐酸反应制取二氧化碳时应选用的发生装置是选填装置序号该反应的化学方程式 3加热高锰酸钾制取氧气用E装置收集氧气的适宜时间是选填字母． A．当导管口刚有气泡冒出时B．当导管口有连续均匀气泡冒出时
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30分Oneofthemostremarkablethingsaboutthehumanmindisourabilitytoimaginethefuture.Inour1wecanseewhathasnotyethappened.Forexamplewhilewearelookingforwardto2anewplaceorcountrywe3whatitwillbelike.Wepredictthe4peoplewilleatdressandact.Ofcoursewedonotalwayspredictthings5.Thingsareoftenverydifferentfromthewaywe6themtobe. Oneofthe7dreamsinhistoryisthedreamoftheGermanscientistKekulewhohadbeen8toworkoutaverydifficultprobleminphysics.Hehad9andanalyzedtheproblemfromeveryanglefordaysbutthere10tobenowayof11outtheanswer.Thenonenighthewenttobedanddreamed.Whenhe12upherealizedthatheknewtheanswer.Hehadsolvedtheprobleminhis13. Thehypnotist催眠者satinthechairoppositehimandspoke14:Iwantyoutoconcentrateonmyvoice.Thinkabout15.Youknownothingbutmyvoice.Andasyoupayattentiontomyvoiceyour16willgetheavier.Soonyou'llbeasleep. Youwillhearmyvoiceand17mywordsbutyourbodywillbeasleepyoureyesaretooheavy.Youare18asleepandwhenyouwakeupyouwill19nothing. Youwillforgeteverything.NowIamgoingto20slowlyfromonetofive.Onetwothreefourfive. 1.A.brains B.senses C.minds D.sights 2.A.visiting B.seeking C.reaching D.discovering 3.A.imagine B.know C.feel D.guess 4.A.custom B.habit C.style D.way 5.A.quickly B.simply C.correctly D.neatly 6.A.required B.wished C.left D.expected 7.A.funny B.dull C.famous D.silly 8.A.managing B.trying C.thinking D.hoping 9.A.studied B.learned C.discussed D.searched 10.A.used B.ought C.seemed D.had 11.A.bringing B.finding C.turning D.letting 12.A.gave B.sat C.woke D.got 13.A.dream B.lesson C.research D.exercise 14.A.softly B.loudly C.slowly D.firmly 15.A.everything B.something C.nothing D.anything 16.A.eyes B.feet C.head D.body 17.A.believe B.repeat C.take D.understand 18.A.really B.extremely C.actually D.almost 19.A.accept B.remember C.hear D.receive 20.A.count B.say C.add D.speak
下列有关说法正确的是
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.
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8分Oneoftheunpleasantaspectsofbeingamanageristhatyouhavetodealwithemployeeswhoengageinviolatingcompanypolicies.Sometypicaldisciplinaryactionswillbedonesuchasreassignmentorevenfiring.Toolightandtheywillnotsufficientlycommunicatetheseverityoftheinfraction违规行为bothtotheemployeewhobroketherulesandtothepeerswhoarewatching.Tooheavyandyoucreateanunfairenvironmentthatviolateseveryone'sexpectationsforjustice. Weallwanttobelievethatwearefairandthatwewouldbeobjective.Howeverthere'sanimportantfactorthatcouldundermineyourabilitytobefair:sleep.Mycolleagues﹣KyoungminChoattheUniversityofWashingtonandCristianoGuaranaattheUniversityofVirginia﹣andIwantedtoinvestigatethislink.Mypreviousresearchindicatesthatlackofsleepdamagesjudgmentandbehavior.Andtheresearchliteratureindicatesthatlackofsleepleadstoerrorsindecisionmaking.AsIdiscussinmyTEDxtalksleep﹣lackingpeoplearenotefficientwithoutevenbeingawarethat. MycolleaguesandIstartedourresearchbasedonthatlackofsleepcanincreasenegativeresponsestotheinfraction.Sleep﹣lackingpeoplearemorelikelytointerpretanactioninanegativemanner.Thissuggeststhatpeoplewillconductinfractionsmorenegativelywhenthey'resleep﹣lacking.Inadditionlackofsleepmakesitmoredifficulttoregulatenegativeemotions.Thiscanmakepeoplemorelikelytobecomeangrymakingtheminturnmorelikelytorespondnegativelytopeoplewhoengageinpunishablebehaviors.Weassumethatsleep﹣lackingpeoplewouldbemorelikelytogiveharsherpunishments. Basedonthisfindingouradvicetomanagersistobeawareofthispotentialeffectonyourjudgment.Ifastaffengagesinapunishableinfractionafteryou'vehadashortnightofsleepyoumayallocateapunishmentthatisharsherthannecessarycontributingtoanunfairworkenvironment. Twopotentialwaystoaddressthiswouldbetoeitherdelaydecidingonadisciplinarymeasureuntilyouhavehadabetternightofsleepordeliberatelydiscountthemeasuretosoftentheeffectofyourlackofsleep.Giventhedifficultyofmeasuringthesecondapproachthefirstapproachisprobablythebetteroption.Anditbearsrepeating:Ifyouwanttobeabettermanageraimtogetatleasteighthoursofsleepeachnight. 28.Whatdoestheauthorsayaboutdisciplinaryactions? A.Employeesshouldbefired. B.Bonuseswillberemoved. C.Severerulesshouldbeperformed. D.Itishardtobalancethepunishments. 29.Theunderlinedwordundermineisclosestinmeaningto. A.change B.influence C.determine D.weaken 30.Whatwouldasleepymanagerdo? A.Realizethesideeffectofitandtakeactions. B.Throwmoreseverepunishment. C.Getridofthenegativeatmosphereinthecompany. D.Regulatethenegativeemotions. 31.Whichofthefollowingstatementsistrueaccordingtothetext? A.Agoodsleepleadstoafairenvironment. B.Unfairworkenvironmentisduetoweakpunishments. C.Itisnecessarytogivepunishmentsafteragoodsleep. D.Eighthoursofsleepeachnightisthebottomline.
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8分AprincipalinManhattaninformedparentsthattherewouldbenomorehomeworkforthepublicschool'sstudents.Andthencamethearguments﹣﹣﹣notfromteachersbutfromparents.Somesaidtheywouldtransfertheirchildrentoanotherschool.Somesaidtheywerefindingonlinesourcesofhomeworkfortheirchildren.TheywerenotconvincedbytheexplanationfromPrincipalJaneHsuaboutthenegativeeffectsofhomeworkonyoungchildrenincludinglackoftimeforotheractivitiesandfamilytimeandlossofinterestinlearning.Hsusuggestedchildrenshouldspendtheirtimeonactivitiesthathadbeenfoundtobegoodfortheiracademicsocialandemotionaldevelopment. AsasupporterofHsu'sapproachIwonderhowmanyoftheparentalargumentsoccurnotbecauseofwhatchildrenwillmissoutonbutbecauseparentsthemselvesnolongerfeelconfidentabouttheirabilitytohelptheirchildrendevelopwithouthighlystructuredactivitiestoguidethem. I'mremindedofameetingattheschoolmyyoungerdaughterwasabouttostartwhenshewas6.Theheadoftheschoolmetwithparentstosaythatshewasalsoconsideringdoingawaywithhomework.Onemomobjectedbecausehomeworkwasherspecialtimeeachdaywithherchildwhentheycouldsitdowntogethertogothroughthework.Theheadoftheschoolappearedsurprisedatthis.Shegentlysuggestedthatthemothershouldreadtoherchildorthattheyshouldcookdinnertogether. It'sbeensadtoseethatkidsbetweentheirstructuredsoccerpracticesandtheirhomeworkhaveverylittletimetoplay.Butit'sevensaddertoseetheparentalnervousnessaroundwhatmighthappentoathird﹣graderwhohasmoretimetocreatethinkreadinteractwithothersorimagine.WhatmighthappenIbelievemustbemorehappinessmoreenergyandbetterphysicalfitness. 32.Fromthepassageweknow. A.teachersarestronglyopposedtogivingnohomeworktotheirstudents B.theideaofnohomeworkhasledtoaheateddebate C.childrengreatlybenefitfromtheideaofnohomework D.otheractivitieshavetakentheplaceofthehomework 33.Whydidonemomobjecttotheideaofnohomeworkforkids? A.Herchildmightloseinterestinlearning. B.Herchildmighthavelesstimetothink. C.Sheenjoyedthetimedoinghomeworkwithherchild. D.Homeworkisgoodforchildren'sacademicdevelopment. 34.Whatistheauthor'sattitudetowardsPrincipalJaneHsu'ssuggestion? A.Indifferent. B.Positive. C.Negative. D.Critical. 35.Thepassageismainlyabout. A.whethertheparentsshouldtransfertheirchildrentopublicschool B.thebenefitsofdoinghomework C.thenecessityofchangingtheeducationsystem D.whetherthestudentsshoulddohomeworkafterschool.
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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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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.
我国早在西汉时期就有“曾青得铁则化为铜”的记载即把铁片放入硫酸铜溶液中可以置换出铜．11.2g铁与足量的硫酸铜溶液反应理论上可得到铜的质量是多少
今年5月1日孙红随父母到一乡村旅游中午到李大伯的农家乐用餐．请你从化学的角度回答下列问题． 1李大伯用腊肉腊鱼土鸡时令蔬菜等招待客人．腊肉在腌制时需要加入一定量的食盐请你说出食盐的一种用途蔬菜是人体获取选填“油脂”或“维生素”的主要来源之一在做菜时常添加加铁酱油有助于预防患病． 2李大伯响应政府号召用天然气代替煤作燃料．天然气属于选填“可再生”或“不可再生”能源请你谈谈天然气作燃料的优点写一条． 3为了把张家界建设成为环境优美生态友好社会文明的国际旅游精品城市需要全社会的共同努力我们作为城市小主人应积极主动参与．请你写出一条爱护环境的做法．
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.
1用化学式填空石墨改良酸性土壤的碱． 2火箭推进器中装有液态肼N2H4和过氧化氢当它们混合反应时放出大量的热量同时产生一种气态单质和一种常见的液体写出有关反应的化学方程式． 3在一定条件下A和B两种物质发生反应生成C和D．如图为该反应的微观示意图． ①从微观角度分析该反应的实质是． ②该反应中生成C和D的质量比是． 4在托盘天平灵敏度极高两边各放盛有等质量等质量分数足量稀硫酸的烧杯天平平衡．向左烧杯中加入一定质量的金属M同时向右烧杯中加入相同质量的金属N观察到从反应开始至结束天平指针始终偏向右边注反应中都生成十2价的硫酸盐．则 ①MN两种金属的活动性由强到弱的顺序为． ②MN两种金属的相对原子质量由大到小的顺序为．
15分Forcenturiesaroundtheworldpeoplehaveinventedmanypastimestokeepthem61entertain.We'reluckyenoughtolivein62timewhenalotofushavealotoffreetimewhichmeanswe're63constantinventingandre﹣inventingsportssoitisnot64surprisethattheworldofathleticcompetitionsometimesbecomesstrangerandstranger.Howevertheworld'sweirdestsportsarenotnew65wereinventedeons千万年agobeforepeoplehadtheInternettoentertainthem. Finlandisacountrythatinventedthesportofwife﹣carrying.Thesportisbasicallyanannualcompetition66husbandsrunanobstaclecoursewhilecarryingtheir67wifeontheirbacks.Themostfamouscompetition68holdinSonkjarviFinland.Therearedifferentcarryingstylesinvolvingpiggybackingfireman'scarryandtheEstonian﹣stylewherethewomanhangsupside﹣down69herlegsaroundtheman'sshoulders.Thesporthasspreadtootherpartsoftheworld70includetheUSandAustralia.
8分IwasjustinFrancetovisitmygrandmotherwhoisverydeartome.Idon'tgettocrosstheAtlanticveryoftenandshe'snow96yearsoldsoeverytimeIvisitherthetwoofusareveryawarethatitmightbethelasttimeweseeeachother. LastyearIdidaseriesofshortvideointerviewsaboutherlife.Iaskedherwhatitwaslikegrowingupwithherfatherinthe1910sandlivingalonewithtwoyoungchildren.Iaskedherabouthergreatestmemoriesandherfavoritebooksfoodsetc.IlearnedalotofamazingnewthingsaboutherIhadneverknownbefore.Thesewereveryintimateconversationswhichmademebetterknowher. ThisyearIdidnotreallyhavequestionsandIonlyhadagreatdesiretomakeherknowhowmuchIlovedher.Icookedforherandreadherstories.Igaveherafootmassage按摩whichwasherfirstever! BeforeleavingIwaslookingforawaytoleavesomethingmeaningfulbehindbesidesthememoryofourtimetogether.ThereforeIwroteherfivedifferentlovenotesandhidthemindifferentplaceswhereIknewshewouldeventuallyfindthem. IleftreallyjoyouslyknowingthatthesecardswouldsurelycheerherupafterIleft.ShecalledmeasIwastravellingbacktoParistocatchmyplanebacktotheUSandsaidIfoundyourcards!BythetimeIdiscoveredthelastoneIwaslaughingoutloud!Thankyousomuchmysweetheart!Ismiledtomyselfknowingshestillhadtwomoretogo!ItwasSundaysomyguesswasthatshehadnotcheckedhermailboxandhadnotyetdrivenhercar! 1.TheunderlinedwordintimateinParagraph2probablymeans A.close B.inspiring C.impressive D.usual 2.Whatcanbeinferredfromthepassage? A.TheauthorwenttoFrancetovisithergrandmotherveryfrequently. B.Theauthordidn'texpecthergrandmothertofindallthefivecards. C.Theauthorandhergrandmotherenjoyedthetimetheystayedtogether. D.Theauthor'shomeisnotfarfromhergrandmother's. 3.Fromthelastparagraphweknowthat A.grandmotherfoundallthecardsimmediatelytheauthorleft. B.grandmotherhadnotcheckedhermailboxbeforethecall. C.grandmotheralwayscallstheauthorbeforeshegetsontheairplane D.grandmotherdoesexercisesbyfindingthecards. ~~4.Whatmightbethebesttitleofthepassage? A.Thewonderfultimewithgrandmother B.Themeaningfullovenotes C.Thepersonwhoinfluencesmemost D.Thefamilyhasanoldatreasure.
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一篇作文.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处多者从第11处起不计分. Timeisvaluablebutlimit.ThereisafamoussayingTimeislifethisshowstheimportanceoftime.Whentimehadgoneit'llneverreturn.It'sapitywhenmanypeoplemakepooruseoftime.Theyspendtheirprecioustimeoversleepingdrinkingandhangingaround.Theydon'trealizewastingtimeisequalwithwastingtheirlife.Theyalwaysregrethavingmadelittleachievementsofar.Howeverweshouldformthehabitofvaluetime.Don'tputoffwhatcanbedonetodaytomorrow.Lazinesswillnotonlybringusthefailurebutalsoleadustotheroadtopovertyandevendeaths.
物质的下列用途主要利用其化学性质的是
6分BritishAirwaysbookingsecrets﹣andthebestlatedealsthisweek:ShortholidaysandEuropeancitybreaks. Dublinfrom£109pp:EnjoytheEmeraldIslewithouttheStPatrick'sDaycrowds.Departing20thMarchthispackageincludesatwonightstayatthefour﹣starKingsWoodHotelCitywestandreturnflightsfromLondonStansted.Clickhere. Brugesfrom£159pp:Treatmumtoamother'sdaycitybreakinthemedievalfairy﹣taletownofBrugesandenjoycanal﹣sidestrollsandanicehelpingofculture.Priceincludestwonightsatthefour﹣starNHBruggewithtravelfromLondonStPancrasdeparting20thMarch.Clickhere. Madridfrom£166pp:FlyfromLiverpoolonMarch27forthreenights'B&Batthethree﹣starEspahotelPlazadeEspana.RealMadriddon'thaveafootballgamethensoseeifRonaldofanciesacerveza.Clickhere. FrenchAlpsfrom£499pp:Saveover£320eachonaweek'sskiingatLesArcs2000stayingcateredattheChaletVanoise.BasedontwosharingandincludesflightsfromManchesteronMarch18andtransfers.Six﹣dayliftpassesfrom£219equipmenthirefrom£65.Clickhere. Tenerifefrom£289pp:GetyourtanonearlywithatriptotheEuropeanhomeofbeaches:Tenerifewithitspostcardperfectgoldensand.Spendsevennightsatthefour﹣starHotelSpaLaQuintaParkSuitesdeparting6thMayandincludingreturnflights.Clickhere. 21.Whichdestinationisthecheapest? A.Dublin. B.Bruges. C.FrenchAlps. D.Tenerife. 22.WhatspecialfeatureisMadridnotedfor? A.Skiing. B.Football. C.Sunshine. D.Culture. 23.Wherewouldyoumostprobablyseethistext? A.UKairlines. B.Amagazine. C.ATVprogram. D.TheInternet.
现有甲乙丙三种金属如果把甲和乙分别放入稀硫酸中甲溶解并产生氢气乙不反应如果把乙和丙分别放入硝酸银溶液中过一会儿在乙的表面有银析出而丙没有变化根据以上事实则甲乙丙的金属活动性由强到弱的顺序是
有一不纯的Na2CO3样品杂质可能是K2CO3CaCO3FeCl3和NaCl中的一种或几种取该样品10.6g加入足量稀盐酸完全反应后得到无色容液同时产生4.4g气体下列判断正确的是
物质的俗名与化学式一致的是
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