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如图所示，圆柱体A和薄壁圆柱形容器B（质量忽略不计）放在水平桌面上，SA＝SB＝100cm2．现将质量为200g，密度为0.5×103kg/m3的物体C放在圆柱体A上，圆柱体A对桌面压强的变化量为△...
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在物理实验操作考核中水平桌面上放置底面积为100cm2的圆柱形容器不计容器壁厚度内有12cm的水如图
一个高12cm的圆锥形容器装满水把水全部倒入和它底面积相等的圆柱形空容器里圆柱形容器的水面高cm．
在物理实验操作考核中水平桌面上放置底面积为100cm2的圆柱形容器不计容器壁厚度内有12cm的水如图
如图所示将底面半径为2R的圆柱形薄壁容器放在水平桌面上把高为h密度为ρρ
注水前，木块对容器底的压力为4πR
2
ρgh
注水前，木块对容器底的压强为2ρgh
若使木块竖直漂浮，向容器中注入水的质量至少为πR
2
ρh
若使木块竖直漂浮，向容器中注入水的质量至少为3πR
2
ρh
如图所示重16km的金属圆柱体放在圆筒形容器中细绳AD系于圆柱体上底面中央并沿竖直方向杠杆AB可绕O
甲乙是两个完全相同的均匀实心圆柱体重力都为5.4N.甲放在水平地面上细绳的一端系于圆柱体甲上表面的中
将高为10cm的圆柱体甲放在水平地面上细绳的一端系于圆柱体甲上表面的中央另一端竖直拉着杠杆的A.端当
将高为10cm的圆柱体甲放在水平地面上细绳的一端系于圆柱体甲上表面的中央另一端竖直拉着杠杆的A.端当
水平桌面上放置有底面积为80cm2质量为400g的柱形圆筒容器筒内装有16cm深的某种液体弹簧测力计
如图4所示将底面半径为2R的圆柱形薄壁容器放在水平桌面上把高为h密度为ρρ＜ρ水半径为R.的实心圆柱
将高为10cm的圆柱体甲放在水平地面上细绳的一端系于圆柱体甲上表面的中央另一端竖直拉着杠杆的A端．
2015·上海宝山区一模如图a所示一个质量为1kg底面积为3×10-2m2的薄壁圆柱形容器放在水平地
如图11所示薄壁圆柱形容器甲和圆柱体乙置于水平地面上容器甲足够高底面积为盛有质量为5千克的水圆柱体乙
如图所示底面积为100cm2的圆柱体放在水平桌面上当把一底面积为80cm2质量为200g的物体A.放
一个圆柱形容器放在水平桌面上如图甲所示容器中立放着一个均匀实心圆柱体M.现慢慢向容器中加水加入的水对
天津市如图的所示底面积为Sb的圆柱形容器内盛有适量的水另一底面积为Sa的圆柱体A.有部分体积浸在水中
如图8甲所示的装置处于静止状态底面积为60cm2的圆柱形玻璃筒中装有适量的水放在水平台面上质量为80
将圆柱体B.竖立在圆柱形容器A.的水平底面上圆柱体B.对容器A.底面的压强为0p向容器A.内缓慢注水
如图11所示底面积为S.1的圆柱体放在水平桌面上当把一质量为m的物体A.放在它上面时.圆柱体对桌面压
一个圆柱形容器放在水平桌面上如图甲所示容器中立放着一个均匀实心圆柱体M现慢慢向容器中加水加入的水对容
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30分I'msittinginaquiethotelroom.It'sjustpastnoonlateJulyandI'mlisteningtothe1soundsofalife﹣or﹣deathstrugglegoingonafewfeetaway.There'sasmallflyburningoutthe2ofitsshortlife'senergiesinafruitlessattemptto3throughtheglasswindow.Thebeatingwingstellthemovingstoryofthefly's4:Tryharder.Butit'snot5.Thecrazyeffortoffersnohopefor6.Ironicallythestruggleispartofthe7.Itis8fortheflytotryhardenoughtosucceedinbreakingthroughtheglass.Thisflyisdoomed.Itwilldiethereonthewindowsill.Acrosstheroomtenstepsawaythedooris9.Tensecondsofflyingtimeandthissmallcreaturecould10theoutsideworlditseeks.Withonlyafractionoftheeffortnowbeing11itcouldbefreeofthisself﹣createdtrap.Whydoesn'ttheflytryanotherapproachsomethingdramatically12Howdiditgetso13intheideathatthisparticularrouteoffersthemostpromiseforsuccessWhatlogicisthereincontinuingtoseeka/an14byrepeatingthesamefailedactionThereisnodoubtthattheapproachof'keeptryinghard'makessensetothefly.Regrettablyit'sthesameideathatwilleventually15thefly.Tryingharderisn't16thesolutiontoachievingmore.Itmaynotofferanyreal17forgettingwhatyouwantoutoflife.Sometimestryingharderistheproblem.Ifyou18yourhopesforabreakthroughontryingharderthaneveryoumay19yourchancesforsuccess.Youshouldtryharderbytrying20.1A.sweet B.desperate C.mysterious D.curious2A.last B.first C.best D.Worst3A.put B.run C.see D.fly4A.performance B.strategy C.contribution D.dream5A.working B.improving C.moving D.living6A.pleasure B.return C.peace D.escape7A.prize B.design C.trap D.success8A.irresponsible B.impossible C.reasonable D.practical9A.bright B.broken C.open D.wide10A.reach B.see C.own D.leave11A.done B.tried C.sought D.wasted12A.dangerous B.demanding C.different D.powerful13A.concerned B.worried C.frustrated D.locked14A.breakthrough B.explanation C.improvement D.guarantee15A.interrupt B.kill C.encourage D.Persuade16A.completely B.importantly C.necessarily D.appropriately17A.experience B.promise C.position D.challenge18A.follow B.shift C.get D.risk19A.miss B.increase C.abandon D.substitute20A.simpler B.sooner C.smarter D.braver
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1目前人类以化石燃料为主要能源．天然气已成为江都市民的主要燃料其主要成分是天然气属于填“可再生能源”或“不可再生能源”写出其主要成分在空气中完全燃烧的化学方程式． 2关注环境已成为一种生活的态度“低能耗”“低废水”“低废弃物”是低碳理念的重要内涵．下列做法符合低碳理念的是． A．发展太阳能风能等新能源B．用淘米水浇花 C．家用电器长期处于待机状态D．推广无纸化办公双面打印文稿
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8分AtschoolIwasinthetopsetformaths.MyteachersrecommendedthatIstudyeconomicsandstatisticsasmyA﹣levelsubjectsbutIhadmymindsetonalifefulfilledbythearts. InfactIwasavictimofagenderstereotypemadestrongersincebirththatmendoscienceandmathsandwomendoartsorlanguages.Computersciencetechnologyandphysicsjustdidnotfigureinmyteenageworldview.Nobodypopularinmyschoolchosetostudythosesubjects. RealitystruckhardwhenIbeganattendingjobinterviewsandinterviewerswouldsay:It'sgreatthatyouspeakforeignlanguagesbutwhatelsedoyoudoNobodyaskedmyfriendswhohadstudiedscienceortechnologythosequestions. Asurveyrecentlyshowedthatthreeofthebest﹣paidjobsforwomenarcinthetechnologysector.It'sasectorthatreallycanchangetheworld.Wemustshowgirlsthattechnologyhasaneffectoneveryindustryouttherefromfashiontoarchitecturetojournalism.Anybodycanlearntocodeandthesedaysit'sasimportantasreadingandwriting.I'verealizedthatatuniversityI'dachievedthewrongkindofliteracy.Notbeingabletocodelimityourimpactontheworldfarmorethananignoranceofgreatliterature. NowIhaveafive﹣year﹣olddaughter.Idon'twanthertoblindlyfollowgenderrolesthewayIdid.Iwanthertoknowthefactthatascienceortechnicaldegreewillnotlimithercreativitybutexpanditandbroadenherhorizonsfarmorethanmyartsbackgroundcould.I'mexposinghertoMinecraftandappswhichhelpimproveanalyticalthinkingandproblemsolvingskills.I'mhopingthatmydaughterwilldiscoverandacceptherpotentialsinscienceandwanttochangetheworld. 1WhatdoestheunderlinedphrasegenderstereotypeinParagraph2referto A.Personallearningstyle. B.Sexcharacteristic. C.Conventionalsexconcept. D.Professiondifference. 2Accordingtotheauthorwhichmaybethebenefitoflearningscience A.Increasingjobpossibility. B.Winningpopularity. C.Improvinglanguagecompetence. D.Enrichingimagination. 3Howdidtheauthorfeelforhermajorchoice A.Satisfied. B.Active. C.Discouraged. D.Regretful. 4Whatmaybethebesttitleforthetext A.ArtorScienceEitherisOK B.GoodSubjectsGoodFuture C.GirlsChooseMoreWisely D.CatchChancesChangetheWorld
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8分—WhenImetafriendrecentlyIaskedhimhowworkwas.OhnotthatbusyI'mjustcoastinghesaid.He'snotalone.Accordingtoarecentpollonethirdofthe3000peoplesurveyedsaidtheywerecoastingatwork.Thismaycomeasasurpriseinanagewhensomanypeoplespendsomuchtimecomplainingabouthowbusytheyare.Butmostofthistalkaboutbusynessisnonsense.AccordingtoastudybyresearchersatOxfordUniversitywedonotinfactspendmoretimeworkingthanwehaveinthepast.Onsomemeasurestheamountweworkhasgonedown.Insteadmanypeoplejusthavejobsfilledwithtasksthatdon'treallyneedtobedone. —Thewaywelookatcoastinghasradicallychanged.Inthepastbeingrelaxedandnotburdenedwithtoomuchworkwithinyourorganisationwasasignofstatus.Nowbeingextremelybusyshowsyouareimportant.Ifyouarenotextremelyoverburdenedthenyouareseenasaslackeralazyperson. —Thisdoesnotmakesense.Mostpeoplearenotasbusyastheysaytheyare.Infactmostpressingtasksatworkareoftenunrelatedtoproductivity.Manybusypeopleareactuallyoverburdenedwithtellingothershowbusytheyare.Beingoverly﹣focusedonyourjobmaymakeyoufeelimportantbutit'slikelytoannoyfriendsco﹣workersandyourfamily.What'smorebeingsuper﹣busyallthetimeisnotgoodforyou.ACornellUniversitystudyfoundthatpeoplewhoareoverburdenedwithworktendtohaveaworsesenseofwellbeingthanthosewhoaremorerelaxed.Theresearchersalsofoundthatbeingsuper﹣busyisbadforyourcareer.Thosewhoreportedworkingveryintenselywereassociatedwithpoorercareeroutcomes. Soperhapscoastersarenotadragonproductivity.Maybetheyhaveworkedoutthatthesecrettoaproductiveandhealthylifeisnotbeingtoobusyandcertainlynottalkingcontinuouslyabouthowbusyyouare.WeshouldrememberBertrandRussell'sadage:Oneofthesymptomsofanapproachingnervousbreakdownisthebeliefthatone'sworkisterriblyimportant. 1WhatcanweinferfromthefindingsoftheOxfordUniversitystudy A.Peoplehaveafalseimpressionabouthowbusytheyareatwork. B.Lessbusyemployeeshaveagreaterlikelihoodofpromotion. C.Onethirdofemployeesdon'tconsiderthemselvestobebusy. D.Peopleoverburdenedatworkarelikelytofeelmoreenergised. 2Inthe19thcenturywhichofthesepeoplewouldprobablyhavebeentheLEASTbusyintheirjob A.Abankclerk. B.Abankowner. C.Anofficecleaner. D.Anofficesecretary. 3Whymightcoastersactuallybesuccessfulintheirwork A.Theydonotfeelthreatenedbyachallengingtask. B.Theyworkmoreco﹣operativelywiththeircolleagues. C.Theyareabletofocusonthemostimportantandnecessarytasks. D.Theyareoftenmoreintelligentandabletocompletetheirworkfaster. 4Whichofthefollowingbestsummarizestheauthor'sattitude A.Heexpressesnopersonalopinionaboutthetopic. B.Hethinksthatlazypeopleareinfactthebestworkers C.Heissympathetictowardsdifficultiesofsuper﹣busyworkers. D.Hebelievesthatbusynessatworkdoesnotequaleffectiveness.
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8分BigtobaccoiswhatthebossesofseverallargetechnologyfirmshavestartedcallingFacebook.Beingcomparedtothetobaccogiantsisfarfrompraisebutitisnottheonlywide﹣spreadanalogy比拟.AlowerblowisthesuggestionthatFacebookmaybecomelikeYahootheoncehigh﹣flyinginternetfirmthatfell. Evenayearagotheideawouldhavebeenunthinkable.ButsinceJanuaryFacebookhasbecometrappedinaseriesofmisjudgmentsandmissteps.ItbecameclearthatithaddonetoolittletostopRussianinterference干涉inAmerica'selectionin2016.Ithadtoadmitthatithadsharedthepersonaldataof90millionuserswithoutsidefirmswithoutpermission. ThecomparisontoYahooisimperfect.EvenatitspeakYahoo'sbusinesswasneveraslargeandprofitableasFacebook's.OneofthemainreasonsYahoodeclinedisbecauseitlostouttoapowerfulcompetitorGoogleinonlinesearch;MarissaMayeritsbossfrom2012untilitssaletoVerizonlastyearwasunabletorestoreadvertisers'oremployees'confidenceasusersleft. ButpeoplewhowatchedYahoo'sfallingseesimilarities.Executive主管turnoverwasaleadingindicatorofitsdecline;beforeMs.MayerwashiredYahoowentthroughfourchiefexecutivesinthreeyears.Mr.ZuckerbergwhocontrolsthemajorityofFacebook'svotingsharesisnotleavingbutmanytopexecutivesare.ThisyearseveralhaveannouncedtheirdeparturesincludingFacebook'schiefsecurityofficer. Whenadvertisers'faithinFacebookhasbeenshakenpoliticiansinWashingtonarerunningoutofpatiencewiththecompany.Lawmakers'inspectionofthefirmiscausingittobemorecautiousabouthowitusesdatafortargetingadvertisementsandaboutwhatinformationitmakesavailabletooutsiders. Mr.ZuckerbergandMs.SandbergareunderpressuretoprovetoemployeesandadvertisersthatFacebookisnotonlytrustworthybutworthyoftheirtimeandmoney.Iftheycannotdosoandthecompany'ssharepricecontinuesitsslideitispossiblethatMs.Sandbergwillbereplacedinthenextyear.Mr.ZuckerbergwilldoubtlesshavethoughtsaboutYahoo'ssorrytale. 1ForFacebookbeingcomparedtobigtobaccois. A.positive B.ambitious C.creative D.negative 2AccordingtotheauthorwhatdoesFacebookcurrentlyhaveincommonwiththefailedYahoo A.Lettingoutusers'data. B.Beingdeepinfinancialcrisis. C.Leadersareleavingthecompany. D.Layingoffalargenumberofemployees. 3TheauthortriestosupporthisjudgmentaboutFacebookby. A.questioningitsmanagement B.usingevidencerelatedtoit C.analyzingitsfinancialdata D.listingitsadvantagesanddisadvantages 4Whatisthemainideaofthepassage A.Facebookgetstrappedintrouble. B.Twocompaniesaredeepincrisis. C.HowtosaveFacebook. D.Faithismorevaluablethangold.
10分Dreamisstrength.Thestrengthcanbringuswhereverwewanttogettoanditcanbringusalotofwondersonourwaytotheplaceinourdreams. Dreamisbeauty.Maybeyoucanseethethingsfullofmagicandmaybeyouwillbemovedbyyourowndream.1.ButshouldwehaveourlifewithoutdreamsOfcoursenot. Everyonehashisdreamsanddreamsareespeciallyimportanttoteenagers.Asteenagersyouhavemanydreams.ThesedreamscanbeverybigsuchaswinningtheNobelPrize.Ortheycanbesmallforexampleyoumayjustwanttobecomeoneofthetenbeststudentsinyourclass.2whatdoyoudowithitDoyouevertrytomakeyourdreamcometrue AndrewMatthewsanAustralianwritertellsusthatmakingourdreamscometrueisthebiggestchallengeinourlife.3orthatitisimpossibleforyoutobecomeawriter.4.Infacteveryonecanfulfillhisdream.Thefirstthingyoumustdoisrememberwhatyourdreamis.Don'tletitleaveyourheart.Keeptellingyourselfwhatyouwant.Dothisstepbystepandyourdreamwillcometrueearlierbecauseabigdreamismadeupofmanysmalldreams. Youmustnevergiveupyourdreams.5.Butthebiggestonecomesfromyourself.Youneedtodecidewhatisthemostimportantandfaceallthesedifficultiesbravely. A.Thesekindsofthoughtsstopyourealizingyourdreams B.Therewillbemanydifficultiesontheroadtoyourdreams C.Onceyoufindadream D.Youmaythinkyou'renotverygoodatsomeschoolsubjects E.Bothbigdreamsandsmallonesareveryimportanttoourlives F.Theworldissorealthatthedreamsseemweak G.Yourtalentisoneofthemostimportantfactorsinlivingyourdreams
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.作文中共有10处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. I'mwellfeedathomewithDadasmycook.Dadhasacquiredvariouscookingmethodbytrialanderror.Notonlydoeshiscookingappealtomyappetitebutalsoguaranteethediversityofnutritionforme.Dadincludeslargeamountsoffruitsvegetablesorgrainsinmyregularmealstokeepmydietbalanced.ForeachonemealIeatquitealotbutIdon'tactuallyriskanyhealthyproblem.SowhencomparingmewithmyclassmatesIfeelveryluckytolivewithsuchgooddad.Ialsofeelgratefulformydadjustbecauseofwhichhehasbeendoingformeeversince.
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一枝蒿酮酸C15H20O3可用于抗流感药物合成．下列关于一枝蒿酮酸的说法正确的是
化学用语是学习化学的重要工具． 1石灰石高温煅烧制取生石灰该反应的化学方程式为该反应属于四种基本反应类型中的反应CO2中碳元素的化合价为CO2在一定条件下能与C反应生成CO该反应中CO2与C的微粒个数比为实验室经常用澄清石灰水检验CO2该反应的化学方程式为CaOH2溶液有导电性是因为其在水中能产生自由移动的和填离子符号CaOH2可用于填一种用途． 2请从下列物质中选择适当的物质填空填序号 ①氦气②小苏打③维生素C④氯化钠 a．作调味剂的是b．作充探空气球的是 c．吃蔬菜水果可补充的物质是d．可用于焙制糕点的是
30分AsIsatmotionlessonthestepsofthepoolwatchingeveryoneelseswimbackandforthIrealizedthatIhadspentmostofmylifewatchingothersenjoythemselves.ItwasthenthatI1alittlegirlstaringatmewithalookofconfusion.Ismiledatherhopingto2theicebytalkingtoher.Unfortunatelymy3failedandshejustkeptonstaring.My4increasedasalittleboyswamuptomeandsaidIfeelsorryforyou. Afterthe5athoughstruckmeIhadtochange6theworldviewedme.BecauseitwaschildrenwhostaredatmethemostIdecidedtowriteachildren'sbookthattaughtthemabout7inafunway.ThisiswhenKatGirlasuperheroina8whohelpschildrenthatarebeingbulliedcameintomymind. Iquickly9insidemyapartmentandbegancreatingthestory.AsIwroteeachwordIcould10myfutureasaworld﹣renownedauthorandpublicspeaker.Myexcitement11likewildfire.Overthenexttwoyearsthestory12manychangesbeforeitsawtheworldinthespringof2011.Myperseverance13paidoff. OnedayIwasinvitedtospeaktothestudentsataneighboringschool.Iconfidentlywheeledintoaclassroomfilledwithstudentswho14atmejustlikethelittlegirlinthepool.HowdoyoufeelwhenyouseemeIaskedthem.Thekidsbravely15Ifeelsorryforyou. Iopenedmybookandstartedreading.ImmediatelyInoticedthechildren'sstaresturnedto16.HowdoyoufeelwhenyouseemeIaskedagain.Without17theyrepliedYouaresocool!Doesyour18flytooIjustsmiledNonotyetbutmaybesomeday.Iknewinmyheartthatthiswas19.Thepasttwoyearshadproventomethatwith20anythingispossible. 1A.suggested B.watched C.appreciated D.noticed 2A.break B.forget C.remove D.deliver 3A.project B.attempt C.anger D.advice 4A.relief B.curiosity C.awkwardness D.encouragement 5A.competition B.encounter C.argument D.interview 6A.what B.when C.how D.why 7A.disabilities B.potentials C.paintings D.manners 8A.pool B.wheelchair C.car D.spaceship 9A.wheeled B.walked C.rushed D.raced 10A.regard B.realize C.consider D.picture 11A.folded B.spread C.recovered D.declined 12A.turneddown B.wentthrough C.lookedup D.gotaround 13A.generally B.carefully C.eventually D.separately 14A.called B.glimpsed C.laughed D.stared 15A.responded B.greeted C.agreed D.continued 16A.doubts B.jokes C.smiles D.tears 17A.hesitation B.discussion C.intention D.imagination 18A.body B.dream C.book D.chair 19A.funny B.strange C.false D.true 20A.generosity B.determination C.popularity D.harmony
分类是学习化学的方法之一．下列物质分类错误的是
6分 FourFreeMobileAppstoHelpYouLearnEnglishFaster HaveyourealizedthatyoucanputyoursmartphonetoreallygooduseforlearningEnglishHereare4freemobileappsthatwillhelpyoudojustthat. HelloEnglish Itcoversalltheaspectsoflanguagelearningincludingvocabularytranslationgrammarspellingsspokenandreadingskills.ItusesinteractivegamestoteachdifferentEnglishlessonsandoffersnewaudiobookslatestnewsandbooks.HoweveryoushouldalreadyunderstandbasicEnglishstructuresandalphabetsfortheappcan'thelpyoulearnEnglishfromscratch从零开始. Duolingo IfyouwanttolearnEnglishfromscratchthenthisistheappyouarelookingfor.DuolingousesinteractivegamestohelpyoulearnEnglish.Forbeginnerstheappfocusesonhelpingyoulearnverbsphrasesandsentences. Lingbe Ifyouarereadytopracticeyourspokenskillsinthereal﹣worldyou'llneedLingbe.It'sacommunity﹣basedappwherepeoplehelpeachotherandsharetheirnativelanguages.ItconnectsyouwithrealpeopleoncallwhoarenativeEnglishspeakers. HelloTalk HelloTalkissimilartoLingbeasitconnectsyouwithnativespeakerstohelpimproveyourlanguageskills.Howeveritaddsafewextrafunctionsthatmightinterestyou.Youcanviewtheinformationaboutuserstofindamatchthatinterestsyou.Additionallyyoucanalsosendtextandaudiomessagesandevendovideocallswithotherpeople. IfyouareabeginnerstartfromDuolingoandthenuseHelloEnglishtotakefullcommandoverthelanguage.ForfluentspokenEnglishlearnersyoucantryoutLingbeorHelloTalk. 1WhatshouldyoualreadyunderstandtouseHelloEnglish A.Goodreadingandwritingskills. B.Basiclisteningandspeakingtips. C.DifferentEnglishlessonsandbooks. D.Englishlettersandbasicstructures. 2WhichappisthebestchoiceforanEnglishbeginneratfirst A.HelloEnglish. B.Duolingo. C.Lingbe. D.HelloTalk. 3WhatcanyoudoonLingbe A.Readthelatestnews. B.Enjoytheinteractivegames. C.PracticeyourspokenEnglish. D.Talkwithnativespeakersintheflesh.
下列做法对人体健康没有害的是
8分Yougetanxiousifthere'snowi﹣fiinthehotelormobilephonesignalupthemountain.Youfeelupsetifyourphoneisgettinglowonpowerandyousecretlyworrythingswillgowrongatworkifyou'renotthere.Allthesecanbecalledalwaysonstresscausedbysmartphoneaddiction. Forsomepeoplesmartphoneshaveliberatedthemfromthenine﹣to﹣fivework.Flexibleworkinghasgiventhemmoreautonomyintheirworkinglivesandenabledthemtospendmoretimewiththeirfriendsandfamilies.Formanyothersthoughsmartphoneshavebecomecruelmastersintheirpocketsneverallowingthemtoturnthemoffandrelax. Pittsburgh﹣baseddeveloperKevinHoleshwasworriedabouthowmuchhewasignoringhisfamilyandfriendsinfavorofhisiPhone.Sohedevelopedanapp﹣Moment﹣tomonitorhisusage.Theappenablesuserstoseehowmuchtimethey'respendingonthedeviceandsetupwarningsiftheusagelimitsarebroken.Moment'sgoalistopromotebalanceinyourlifehiswebsiteexplains.Sometimeonyourphonesometimeoffitenjoyingyourlovingfamilyandfriendsaroundyou. Dr.ChristineGrantanoccupationalpsychologistatCoventryUniversitysaidTheeffectsofthis‘alwayson'culturearethatyourmindisneverrestingandyou'renotgivingyourbodytimetorecoversoyou'realwaysstressed.Andthemoretiredandstressedwegetthemoremistakeswemake.Physicalandmentalhealthcansuffer. Andasthenumberofconnectedsmartphonesisincreasingsoistheamountofdata.Thisisleadingtoasortofdecisionparalysis瘫痪andiscreatingmorestressintheworkplacebecausepeoplehavetoreceiveabroaderrangeofdataandcommunicationswhichareoftendifficulttomanage.Itactuallymakesitmoredifficulttomakedecisionsandmanydolessbecausethey'recontrolledbyitallandfeeltheycanneverescapetheofficesaidDr.ChristineGrant. 1What'sthefirstparagraphmainlyabout A.Thepopularityofsmartphones. B.Theprogressofmoderntechnology. C.Thesignsofalwaysonstress. D.Thecauseofsmartphoneaddiction. 2KevinHoleshdevelopedMomentto. A.researchhowpeopleusetheirmobilephones B.helppeoplecontroltheiruseofmobilephones C.makepeoplebetterusemobilephones D.increasethefunofusingmobilephones 3What'sDr.ChristineGrant'sattitudetowardsalwaysonculture A.confused. B.positive. C.doubtful. D.critical. 4Accordingtothelastparagraphagreateramountofdatameans. A.wewillbecomelessproductive B.wecanmakeadecisionmorequickly C.wewillbeequippedwithmoreknowledge D.wecanworkmoreeffectively
15分AsItrieddescribingThanksgivingDaytomyin﹣laws姻亲inChinaIcouldalreadyseetheireyescloudoverwith1confuseandsensethequestionsfoizningintheirminds.SoIattempted2translatetheholidaythroughthingstheywerefamiliarwith.Idescribedtheroastturkeyassomethingsimilar3Beijingduck.IcomparedtheannualThanksgivingshowtothe4yearSpringFestivalGala联欢会onChineseNewYear'sEve.AndIcharacterized5entirecelebrationasanAmericanversionofWinterSolstice冬至inChina.Yetasmuchasmyin﹣laws6nodandsmiledIrecognizedthateventheseexplanationswereapoorsubstitute.NowordscouldfullydescribetheThanksgivingcelebrations:IhadknownintheUS. This7bethekindofdisappointmentyoufaceincross﹣culturalcommunication.Despiteallthedifferenceswecanstillsitdowntogetherandhaveheart﹣to﹣heart8discussionabouteachother'straditions.SointhespiritofmyAmericanholidayIsilentlygaveamomentofthanksfor9haveinChinasuchgreatin﹣laws10caredenoughtolistentotheirforeigndaughter﹣in﹣lawtalk.aboutThanksgivingDay.
甲烷和水反应可以制水煤气其反应的微观示意图如图所示 下列对该反应的叙述正确的是
如图是ABC三种固体物质的溶解度曲线下列分析不正确的是
2015年世界环境日的主题确定为Think．Eat．Save．﹣﹣思前食后厉行节约．下面做法符合这一主题的是
“分子机器”是指在分子尺寸上制造的一类分子器件其长短仅相当于1纳米左右1纳米＝10﹣9米它的驱动方式是通过外部刺激如电能光照等使分子结构发生改变从而对外做功．下列关于分子机器的说法中正确的是
25分假定你是李华.在上周的国际文化节上你结识了喜欢中国书法的交换生Peter.你准备赠送他一本英文版中国书法鉴赏.请给他写一封电子邮件内容包括: 1.写信目的; 2.简介该书; 3.询问地址. 注意: 1.词数100左右邮件的开头与结尾己给出; 2.可以适当增加细节以使行文连贯; 3.参考词汇:书法calligraphy;鉴赏appreciation. DearPeter Howarethingswithyou Lookingforwardtoyourreply. Yours LiHua
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:在错的词下画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. Asafathersatreadingamagazinehisyoungdaughterkeptdisturbhim.Tokeepherbusilyhetoreoutapageonthatamapoftheworldwasprinted.Hecutitintopieceandaskedhertoputthemtogetheragainbyherown. Hewassureshewillneedthewholedaytogetitdone.Butafewminuteslaterthegirlreturnedwithaperfectmap.WhenaskedwhethershediditsoquicklyshesaidThere'saman'sfaceonotherside.Ijustmadethefaceperfecttogetthemapright.Shethenranoutoftoplayleavingthefathersurprising.
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