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有些跑车在车尾安装了一种“气流偏导器”，如图由于“气流偏导器”上表面平直，下表面呈弧形凸起，当跑车高速行驶时，流过它上方的空气速度比下方空气速度 （选填“大或小”），此时，上方空气压强比下方空气...
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如图所示跑车尾部安装有气流偏导器它的底部是弧形这相当于倒置的飞机机翼跑车行驶时流过气流偏导器上方的气
有的跑车在车的尾部设计安装了一种气流偏导器它的上表面平直底部呈弧形凸起相当于一个倒置的翅膀如图14所
有些跑车在车尾安装了一种气流偏导器如图所示由于气流偏导器上表面平直下表面呈弧形凸起当跑车高速行驶时流
有的跑车在车的尾部设计安装了一种气流偏导器它的上表面平直底部呈弧形凸起相当于一个倒置的翅膀如图所示这
有些跑车在车尾安装了一种气流偏导器如图所示由于气流偏导器上表面平直下表面呈弧形凸起当跑车高速行驶时
有的跑车在车的尾部设计安装了一种气流偏导器它的上表面平直底部呈弧形凸起相当于一个倒置的翅膀如图所示这
有些跑车在车尾安装了一种气流偏导器如图所示由于气流偏导器上表面平直下表面呈弧形凸起当跑车高速行驶时流
有些跑车在车尾安装了一种气流偏导器如图所示由于气流偏导器上表面平直下表面呈弧形凸起当跑车高速行驶时流
有的跑车在车的尾部设计安装了一种气流偏导器它的上表面平直底部呈弧形凸起相当于一个倒置的翅膀如图所示这
有些跑车在车尾安装了一种气流偏导器如图甲所示气流偏导器上表面平直下表面呈弧形凸起和飞机机翼的模型放
如图所示跑车尾部安装有气流偏导器它的底部是弧形跑车行驶时流过气流偏导器上方的气流速度选填大于或小于下
有些跑车在车尾安装了一种气流偏导器如图由于气流偏导器上表面平直下表面呈弧形凸起当跑车高速行驶时流过
有的跑车在车的尾部设计安装了一种气流偏导器它的上表面平直底部呈弧形凸起相当于一个倒置的翅膀这主要是为
有的汽车尾部设计安装了一种气流偏导器它的上表面平直底部呈弧形凸起相当于一个倒置的翅膀如图所示当汽车
气流偏导器上方空气流速小于下方空气流速
气流偏导器受到气体压力的合力向上
气流偏导器的作用是减小汽车与地面的压力，减小摩擦
气流偏导器应用了流体中流速大的位置压强大的原理
有的跑车在车的尾部设计安装了一种气流偏导器它的上表面平直底部呈孤形凸起相当于一个倒置的翅膀这主要是为
有些跑车在车尾安装了一种气流偏导器如图9-4-6所示由于气流偏导器上表面平直下表面呈弧形凸起当跑车高
有些跑车在车尾安装了一种气流偏导器如图所示由于气流偏导器上表面平直下表面呈弧形凸起当跑车高速行驶时流
有些跑车在车尾安装了一种气流偏导器如图由于气流偏导器上表面平直下表面呈弧形凸起当跑车高速行驶时流过
有的跑车在车的尾部设计安装了一种气流偏导器它的上表面平直底部呈弧形凸起相当于一个倒置的翅膀该结构主要
让跑车高速行驶时，减小空气阻力
让跑车高速行驶时，减小地面的摩擦力
让跑车高速行驶时，增大汽车的浮力
让跑车高速行驶时，车轮能更好地“抓紧”地面
有些跑车在车尾安装了一种气流偏导器由于气流偏导器上表面平直下表面呈弧形凸起当跑车高速行驶时流过它上方
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﹣I'dliketovisitKatetomorrow.Doyouknow? ﹣SorryIdon'tknowheraddresseither. A.whyshelivesthere B.whosheliveswith C.whereshelives D.howshelives
LastwinterthehottestmanonEarthwasan‘alien'calledDoMinJoon都敏俊.ItisaroleinSouthKoreanTVplayYouWhoCameFromtheStars.TheactorKimSoo﹣hyumplayedtheroleofDoMinJooninthepopularTVplay.It'saboutalovestorybetweena400﹣year﹣oldalienandahumanactress.KimbecamefamousinChinabecauseoftherolewithlotsoffansfollowinghim. KimSoo﹣hyumwasbornonFeb161988inSeoulSouthKorea.Hehasagreatshape.Heis180cmtallandweighs65kg.hehassomedifferenthobbiessuchassportsandphotography. Thisisnotthefirstsuccessforthe27﹣year﹣oldman.SinceheenteredthefieldnineyearsagoKimhaswonover20awardsforacting. HoweverbackinmiddleschoolnobodyexpectedthatKimwouldbecomeanactor.Hewassoquietthathismotherhadtosendhimtotheactingschoolhopinghecouldbecomelessshy. HisfirstshowonthestagewasAMidsummerNight'sDream.Kimplayedafairy.Itlastedforaweekinhisschool.ForthefirstfewshowsKimwasstillshyandafraidoflookingupattheaudience观众.Itwasnotuntilthelastshowthathefinallygotthecourage勇气tolookintopeople'seyesandactedwithconfidence.Suddenlytheworldofactingopenedthedoorforhim. AsateenagerIneverthoughtwhatIwantedforthefuturebutatthatmomentIknewthatIwantedtoact. Haveyoufoundyourdreamlikehim? 48.KimSoo﹣hyumbecamefamousinChinabecause. A.hewasanalien B.heplayedtheroleofDoMinJoon C.HewrotethepopularTVplayD.hehasagreatshape 49.WhendidKimbecomeanactor? A.Lastwinter. B.In2000 C.Whenhewasborn. D.Attheageof18. 50.Whydidhismothersendhimtotheactingschool? A.Sheexpectedhimtobeanactor. B.Hedidn'tstudywell. C.Shehopedhecouldbecomelessshy D.Shewantedhimtoplayafairy. 51.Theunderlinedpartatthatmomentrefersto. A.whenhegotthecouragetolookintopeople'seyesandactedwithconfidence B.whenhewasinhismiddleschool C.afterhehaswonover20awardsforacting D.whenheenteredthefield.
我们英语老师善于讲有趣的笑话.begoodat.
﹣Couldyoutellme? ﹣BysearchingtheInternet. A.howdidCarlgetthenews B.whyCarlgotthenews C.howCarlgotthenews D.whydidCarlgetthenews
﹣Wouldyoulikesomemorecakes? ﹣. A.NoIwouldn't B.Nothankyou.I'vehadenough. C.YesI'dlikeadrink. D.NoIdon'tlikeit.
根据下列实验示意图回答相关问题．1甲图实验验证人体呼出气体中二氧化碳含量比空气中多时除了要保证两种气体样品的体积相同外还要控制相同2乙图是硫燃烧的实验下列相关描述合理的是A．硫在空气中燃烧产生淡蓝色火焰B．硫燃烧是剧烈氧化的现象C．硫在空气和氧气中燃烧的产物不同D．集气瓶底部留有水可以减少燃烧产物对空气的污染3丙图实验中同时向烧杯中加入一粒相同大小的品红发现整杯水变红的时间热水比冷水短从微观角度可以解释为．
学会自我保护是青少年需要具备的一种意识和能力.马上就要毕业的你非常担心学弟学妹们.请根据以下提示并结合自己的观点以HowtoProtectyourself?为题写一篇90词左右的短文告诉他们在生活中应该怎样自我保护. 要求:句子结构准确要点齐全内容合理篇章结构连贯. 注意:开头结尾已给出不计于总次数. 提示: 1.慎重交友尤其是网友;2.遇险报警;3.不要在教室内追逐runaftereachother上下楼不要拥挤;4.严禁独自游泳;5.健康饮食＝6.… HowtoProtectyourself? Self﹣protectionisoneofthemostimportantskillsforteenagers.Buthowtoprotectyourself?Herearesomeofmysuggestions. Inshorteveryoneneedstolearnhowtoprotectourselvesandstayawayfromdanger.
Onceinasmallvillagelivedafamilywitheightchildren.Twoofthechildrenlovedpaintingverymuchbutthefamilywassopoorthatitwasimpossibletosend31ofthemtostudyattheartcollegeatthesametime.Aftermanydiscussionsthetwoboysfinally32aplan.Theywouldtoss抛acoin.Theloserwouldgo33intothemines煤矿andwithhisearnings赚得的钱supporthisbrotherstudyingatthecollege.Thenwhenthebrotherwhowonthetossfinishedhisstudiesafterfouryearshewouldsupporttheotherbrotherstudyingatthe34JamewonthetossandJackwentdownintothemines.Jamesworkedwithallhisheartandhispaintingsweremuch35hanthoseofmostofhisteachersandbythetimehe36hewasbeginningtomakealotofmoneyforhispaintings. WhenJamesreturnedthefamilyheldabigdinnerforhisgreatsuccess.SoonafterthemealbeganJames37upfromhisseattodrinkatoast举杯祝酒tohisdearbrother.HesaidJacknowyoucangototheartcollegeandyour38willcometrue.Iwilltakecareofyou. ButJacksaidsoftlyBrotherthefouryearsinthemineshasdonetoomuchtomy39soit'stoolate.NowIcan'tevenholdaglass. ToshowhisgreatloveandrespectJamesdrewhisbrother'shandswith40towardsthesky. HecalledhisdrawingThePrayingHandswhichbecameveryfamousyearslater. 31.A.any B.all C.both D.neither 32.A.lookedout B.workedout C.tookout D.gotout 33.A.off B.away C.up D.down 34.A.home B.mine C.college D.school 35.A.better B.worse C.cheaper D.older 36.A.arrived B.graduated C.walked D.waited 37.A.picked B.turned C.looked D.stood 38.A.way B.idea C.dream D.practice 39.A.body B.hands C.feet D.arms 40.A.legs B.feet C.arms D.fingers
这个卡通片赢得了孩子们的喜爱.wintheheartof.
ThingsaregoinggreatinCannes戛纳France.Ihaveanexcitingexperiencehere.IhaveonlybeenhereatthefilmfestivalfortwodaysbutIhavealreadyseenfourfilms.WhenthefilmsarenotonIliketogotowatchthefashionablepeopleonthebeach.Everywhereyoulooktherearefamousfilmstarsanddirectors.Isawthreeofmyfavouritestarshangingoutatthefestivalyesterday.HoweverIwastoonervoustotalktothem. Atthisyear'sCannesFilmFestivalabouttwentyfilmsarecompetingforthemainprizethePalmed'Or金棕榈奖.Thefilmsarefromallovertheworld﹣EuropeAsiaNorthAmericaAfrica… Therearealsosomanydifferenttypesoffilmsandlotsofthemarefromcountrieswhicharenotfamousforthefilmmakingbusiness.Forsomeonewholovesfilmsthisisheaven天堂! Ifyoucometothefestivalthefollowingsuggestionswillbehelpful.Firstyou'llneedtoremembertobringyourinvitationbecauseyoucannotwatchanyofthefilmswithoutone. Secondyou'llneedtobringsomeniceclothes.DuringthedayeveryonewalksaroundinT﹣shirtsandshorts.Butintheeveningeveryonehastowearformal正式的clothes.Iamwearingalongdressallthetime! 68.Whatdidthewriterdoatthefilmfestival?根据短文回答问题 69.请将短文中划线句子译成汉语 70.Whatarethewriter'ssuggestions?根据短文回答问题 71.What'sthetopprizeattheCannesFilmFestivalinFrance?根据短文回答问题 72.Giveatitletothepassage请给短文拟一个适当的英文标题..
AfamousforeigncompanyinChinawantedaclerkforitspublicrelationdepartment公安部. Abeautifulgirlwithamaster'sdegree硕士学位wentthroughalotofchallengesandhernamewasonthelist.Inthefinalstageshefacedaninterviewtogetherwithanothergirl.Bothofthemwereoutstandingnotonlyinlooksbutalsoineducation. Thegirlwassuccessfulintheinterview.Itseemedthatshewouldgetthechance.AtlasttheexamineraskedherCanyoucometotheofficenextMonday?Shockedbytheunexpectedquestionthebeautifulgirlcouldn'tmakeadecisionatthemomentsoshesaidIhavetotalkwithmyparentsbeforeIgiveananswer.TheexaminerfeltsurprisedbutsaidcalmlyIfsolet'swaittillyouareready. ThenextdaythegirlcametotelltheexaminerthatherparentshadagreedtoletherbeginworknextMonday.Buttheexaminersaidregretfully遗憾地Sorryanothersuitablecandidate选手hasgotthejob.Youhadbettertryanotherplace.Thebeautifulgirlwassurprised.Sheaskedforanexplanation解释andwastoldWhat'sneededhereisapersonwhoknowsherownmind. Thatwashowagoodopportunityrightunderthenoseofabeautifulgirlranaway. 44.Thebeautifulgirlwantedtoaskherparentsforadvicebecause. A.shedidn'tlikethejob B.shedidn'texpecttheexaminerwouldasksuchaquestion C.shedidn'twanttoanswerthequestion D.herparentswouldbeangryifshedidn'taskthem 45.Wecanlearnfromthepassagethat. A.thecompanylostitsbestclerk B.nogirlgotthejob C.theothergirlwhofailedatthelastinterviewmightgetthejob D.theexaminerwasverypleasedwiththegirl 46.Theunderlinedphraserightunderthenoseofprobablymeans. A.就在鼻子下 B.想要得到的 C.没有把握的 D.就在眼前的 47.Thebesttitleforthepassageabovemightbe. A.MakeDecisionsWithYourParents B.ASuccessfulInterview C.UseYourOwnMind D.AnswertheExaminer'sQuestionQuickly.
自从'中国好声音'VoiceofChina节目开播以来越来越多的明星参与其中.takepart.
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﹣Whatheavyrainitwas!﹣YesbutIloveairafteritrains.Itsmellssofresh.A.thea B.athe C.thethe D.aa
MissLilivesthatbuilding.Shelivesthesixthfloor. A.on;in B.of;to C.in;on D.to;at
Wecan'tseeanytreesherebecausesomepeople．A.cutitdown B.cutthemdownC.cutdownit D.cutdownthem
EnglishwasoncespokenonlybypeopleinapartofBritish.Butduringthetwentiethcenturyitbecamea31language﹣alanguageusedbyspeakersofmanydifferentlanguagestocommunicatewith32. Althoughitiscalledaworldlanguage33morethanfivebillionpeople﹣﹣﹣mostofthepeopleontheearth﹣﹣﹣donotspeakEnglish34eithertheirfirstorsecondlanguage.Howeverhundredsofmillionsofpeopleuseiteverydayandhundredsofmillionsofpeople35itnow. BecausesomanypeoplelearnanduseEnglishitmaybe36toimaginethatonedayEnglishmaynotbeworld'sleadinglanguage.Rememberthattherewereotherimportantlanguagesinthepast37losttheirimportanceorevendisappeared.38Latinwasusedasacommonlanguageformanycenturiesbeforepeoplestoppedusingit.Frenchwasoncealanguageknownbyallwell﹣educatedpeopleandwas39thanEnglish.Butsincethenineteenthcenturythingshavechanged. TodaymanypeoplewhowanttolearnanewlanguagearelearningChineseSpanishorArabic.Itmaybethatoneday40Englishanotherlanguagewillbeusedacrosstheworld. 31.A.second B.beautiful C.world D.mother 32.A.eachother B.others C.theother D.another 33.A.but B.so C.and D./ 34.A.as B.for C.in D.with 35.A.learned B.arelearning C.havelearned D.learning 36.A.easy B.possible C.hard D.interesting 37.A.which B.what C.When D.who 38.A.InAmerica B.InAsia C.InAfrica D.InEurope 39.A.popular B.morepopular C.mostpopular D.lesspopular 40.A.insteadof B.togetherwith C.without D.exceptfor.
Themascot吉祥物ofRio2016OlympicGamesisgoodluck.A.thenumberof B.thesymbolofC.thedayof D.thecolorof
请根据下列各图中提供的信息回答问题．1装置图A中标号①的仪器名称是2实验室用加热高猛酸钾的方法制取氧气应选用的发生装置为装置应进行怎样的改进3选用装置B制取氧气发生反应的符号表达式为4选用装置C收集氧气依据的是氧气的物理性质5用装置D收集氧气时检验氧气是否收集满的方法是
Whateveryoudoisdifficultifyouputyourheartintoit. A.something B.anything C.everything D.nothing
他总是和同学们相处的很好.getonwith.
—WhydoyouoftengotoXiushanPark—Becauseitisaplacemanytreesaroundit.A.in B.with C.on D.under
JohnarrivedLondonacoldmorning. A.on;at B.at;at C.in;on D.at;in
回答下列问题．2H表示
回答下列问题．地壳中含量第二位的金属元素是．
Decisionsdecisions!Ourlivesarefullofthemfromthesmallonestothelife﹣changing.Therighttochooseiscentraltoeveryone.Yetsometimeswemakebaddecisionsthatleaveusunhappyorfullofregret.Cansciencehelp? Mostofusknowlittleaboutthementalprocessesthatliebehindourdecisions.Luckilywhatpsychologistsarefindingmayhelpusallmakebetterchoices.Herearesomeoftheiramazingdiscoveriestohelpyoumakeupyourmind. Consideryouremotions.Youmightthinkthatemotionsaretheenemyofdecision﹣makingbutinfacttheyareapartofit.Wheneveryoumakeupyourmindyourbrain'semotionalcentreisactive.UniversityofSouthernCaliforniascientistAntonioDamasiahasstudiedpeoplewithdamagetoonlytheemotionalpartsoftheirbrainsandfoundthattheywereunabletomakebasicchoicesaboutwhattowearoreat.Damasiathinksthismaybebecauseourbrainsstoreemotionalmemoriesofpastchoicewhichweusetohelpthepresentdecision﹣making. Howevermakingchoicesundertheinfluenceofanemotioncangreatlyaffecttheresult.Takeangerforexample.AstudybyNitikaGargoftheUniversityofMississippiandotherscientistsfoundtheangryshoppersweremorelikelytochoosethefirstthingtheywereofferedratherthanconsideringotherchoices.Itseemsthatangercanleadustomakequickdecisionswithoutmuchthinking. Allemotionsaffectourthinkingandmotivationsoitmaybebesttoavoidmakingimportantdecisionsundertheirinfluence.Yetstrangelythereisoneemotionthatseemstohelpusmakegoodchoices.TheAmericanresearchersfoundthatsadpeopletooktimetoconsiderthevariouschoicesonofferandendedupmakingthebestchoices.Infactmanystudiesshowthatpeoplewhofeelunhappyhavethemostreasonableviewoftheworld. 52.Whatdoestheunderlinedwordcentralmean? A.inthemiddle. B.easytoreach. C.important. D.havingpower 53.Damasia'sstudysuggeststhat. A.emotionsaretheenemyofdecision﹣making. B.ourbrainhasnothingtodowithdecison﹣making. C.peoplewithphysicaldamagefindithardtomakuptheirminds. D.ouremotionalmemoriesofpastchoicescanaffectpresentdecisions. 54.Accordingtothetextwhatmayhelpusmakebetterdecisions? A.Tothinkabouthappytimes B.Tomakemanydecisionsatatime. C.Tostopfeelingregretfulaboutthepast. D.Tolearnabouttheprocessofdecision﹣making. 55.Whyareangryshoppersmorelikelytochoosethefirstthingtheyareoffered? A.Theyoftenforgettheirpastchoices. B.Theymakedecisionswithoutmuchthinking. C.Theytendtosavetimewhenshoppng. D.Theyaretooangrytobargain.
YourJunior3yearwillfinishsoon.Doyouwanttosaysomethingaboutyourjuniorschoollife?Whatweretherewards收获ofthethreeyears?Ourreadershavetheirstoriestoshare. 45.What'stheChinesemeaningoftheunderlinedwordpressure? A.压力 B.不公平 C.重量 D.优越感 46.Whichofthefollowingisn'tJohn'srewardduringjuniorschool? A.Makethebed B.Getalongwellwithroommates. C.Makeascheduletoarrangetime D.Becomeoneofthetopstudents. 47.Fromthepassagewecanknowthat. A.Johnistheoldestamongthethreestudents. B.Benisahard﹣workingandcleverboy. C.BenJohnandJuliearefromthesamecity. D.Juliefeltsorrybecausesheatealotoflocalfood.
﹣IreallyliketowatchtheTVprogramIAMASINGER. ﹣Metoo.It'soneoftheTVprogramsI'veeverseen. A.leastboring B.leastinteresting C.mostboring D.mostinteresting
Thesoftmusicsounds.Wearealllistening. A.beautifully;careful B.beautiful;carefully C.beautiful;careful D.beautifully;carefully
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