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三棱锥P-ABC中，D，E分别为PB，PC的中点，记三棱锥D-ABE的体积为V1，P-ABC的体积为V2，则= ．
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高三下学期数学《》真题及答案
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三棱锥各顶点的坐标分别为000100020003则三棱锥的体积为________.
2016年·赤峰模拟已知三棱锥P﹣ABC若PAPBPC两两垂直且PA＝2PB＝PC＝1则三棱锥P﹣
如图在三棱锥P﹣ABC中DEF分别是侧棱PAPBPC的中点．给出下列三个结论①BC∥平面DEF②平
0
1
2
3
若三棱锥P﹣ABC中PA⊥PBPB⊥PCPC⊥PA且PA＝1PB＝2PC＝3则该三棱锥外接球的表面
14π
28π
56π
如图三棱锥P.－ABC中PA⊥平面ABC∠BAC＝60°PA＝AB＝AC＝2E.是PC的中点.1求异
在三棱锥P.－ABC中D.E.分别为PBPC的中点记三棱锥DABE的体积为V.1PABC的体积为V.
如图三棱锥P-ABC中PA⊥平面ABCAB⊥BCD.为PB的中点E.为PC的中点.Ⅰ求证BC∥平面A
已知正三棱锥A﹣BCD的所有顶点都在球O的球面上其底面边长为3EFG分别为侧棱ABACAD的中点．
4π
如图已知三棱锥A.－BPC中AP⊥PCAC⊥BCM.为AB的中点D.为PB中点且△PMB为正三角形.
正六棱锥P.－ABCDEF中G.为PB的中点则三棱锥D.－GAC与三棱锥P.－GAC体积之比为
1:1
1:2
2:1
3:2
三棱锥P﹣ABC中△ABC为等边三角形PA=PB=PC=2PA⊥PB三棱锥P﹣ABC的外接球的表面积
将侧棱相互垂直的三棱锥称为直角三棱锥三棱锥的侧面和底面分别叫为直角三棱锥的直角面和斜面过三棱锥顶点及
已知三棱锥P.—ABC中PC⊥底面ABCAB=BCD.F.分别为ACPC的中点DE⊥AP于E.1求证
一个三棱锥的各棱长均相等其内部有一个内切球即球与三棱锥的各面均相切球在三棱锥的内部且球与三棱锥的各面
@B.
@D.
三棱锥P.ABC中D.E.分别为PBPC的中点记三棱锥D.ABE的体积为V.1P.ABC的体积
三棱锥P﹣ABC中DE分别为PBPC的中点记三棱锥D﹣ABE的体积为V1P﹣ABC的体积为V2则V
已知正三棱锥A-BCD的所有顶点都在球O的球面上其底面边长为3EFG分别为侧棱ABACAD的中点．
4π
三棱锥P-ABC中DE分别为PBPC的中点记三棱锥D-ABE的体积为V1P-ABC的体积为V2则=
将侧棱互相垂直的三棱锥称为直角三棱锥三棱锥的侧面和底面分别叫直角三棱锥的直角面和斜面过三棱锥的顶点及
已知三棱锥P﹣ABC的三条侧棱PAPBPC两两互相垂直且PA＝PB＝PC＝a则该三棱锥的外接球的体
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O2辅助的“Al﹣CO2电池”既可有效利用CO2也可制得重要的化工原料草酸铝[Al2C2O43]工作原理如图所示．下列说法错误的是
Ibelievethatlife'stoughestlessonsarebestlearnedthroughpersonalexperience.Throughoutmychildhoodmygrandmother1mewithunconditionallovebutalwaysstressedYou'renot2thananyoneelsebutyou'rejustasgoodasanyone.Treatotherswith3andyouwouldearnrespect4. HoweverIneverreally5ituntilIwasseventeenandgotasummerjobasajanitor.AsI6floorsandtoiletsIwatchedpeoplewalkrightbymeandignoremy7.Thismademefeelangryandwonderwhytheytreatedmesopoorly. WhenI8tomygrandmothersheofferedmesomewordsof9andremindedmenevertoforgetthefeelingofbeing10andtodothebestjobbecauseitwasstillmywork11whichIshouldtakepride.Sheaddedthatitwouldmakemeabettermansomeday. Makemeabettermansomeday?Shemustbe12Ithoughttomyself.ButIneededthejobto13collegeandtherewerefewotherjobsavailable14IbitmytongueandkeptonworkingasbestasIcouldforthe15ofthesummer. Todaywhenaskedwhatjobhelpedpreparemetogainthe16ofakeyuniversityItellpeopleitwasmysummerjobcleaningrestroomsthat17measamananddowntheroadasaneducator. Asyoucansee18canonlybeunderstoodbywalkinginalotofdifferentshoes.SoIsuggeststudents19oftheircomfortzonesandgetdeeplyinvolvedindifferentworkandcommunityexperience.It'sessentialforpeopletofind20ineverypersonnomatterwhotheyareorwhattheydoforaliving. 1A.afforded B.offered C.gave D.provided 2A.better B.more C.higher D.lower 3A.care B.anger C.dignity D.age 4A.inorder B.inneed C.inadvance D.inreturn 5A.worried B.understood C.admitted D.appreciated 6A.cleaned B.repaired C.swept D.mopped 7A.glance B.presence C.instruction D.commitment 8A.attended B.suggested C.explained D.complained 9A.belief B.surprise C.comfort D.excitement 10A.horrible B.invisible C.angry D.poor 11A.in B.for C.on D.to 12A.promising B.joking C.misleading D.outstanding 13A.payfor B.gofor C.lookfor D.sendfor 14A.or B.however C.but D.so 15A.heat B.time C.rest D.hope 16A.friendship B.relationship C.leadership D.hardship 17A.served B.shaped C.viewed D.treated 18A.facts B.method C.lessons D.theories 19A.getout B.dropout C.giveout D.runout 20A.secret B.fault C.way D.value
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Arecentsurveyshowsthatroughly85percentofpeoplefeelphysicalsymptomsofstress.1andtheywillhelpyoufeelmoreenergetictomorrow •Doubleyourchews Chewingisasuper-importantpartofthedigestionprocess.Chewingmakesiteasierforyourbodytobreakdownfoodandturnitintoenergy.Themostpropernumberofchewsperbiteisunclear.2.Itwillbeeasyforyourbodytobreakdownthefoodandstoreenergy. •Drinkonelesscupofcoffee Althoughcaffeineincoffeeblocksyourbrainfromreceivingadenosinewhichcausestirednessitdoesn'tstopyourbodyfromproducingit.Sooncethecaffeinedisappearsit'sthebuildupofadenosinethatcausesyoutocrashandreachformorecaffeinecreatingabadcircle.3butdrinkinglesscoffeecanhelpyoufeelmoreenergeticoverthelongterm. •Takeafewdeepbreaths Bynotbreathingdeeplyenoughyouendupsendingasignaltoyournervoussystemthatincreasesyouranxietyevenfurther.Changingyourbreathinghabitsbytakingafewlongslowbreathsthroughoutthedayreducesthestressresponsewhileenergizingyourcells.4Simplybreatheinthroughyournoseforacountofthreeandoutthroughyourmouthforacountofthree.Repeatasnecessary. •5 Takesometimetoreflectonthepositivebywritingdownthreethingsthatwentsmoothlyduringyourdayorjustitemsyoufeelgratefulfor.Thisexercisecanprepareyourmindforwhat'sgoingrightinyourlifehittingthebrakesonstressincreaseswhilehelpingtoprotectyourenergyreserves. A.Setdownwhatwentwelltoday B.Tryanexercisetoachievethis C.Reflectonyourdaysometimes D.Reducingyourrelianceonitsoundsscary E.Takealookatthesmallchangesyoucanmaketoday F.Shallowbreathingisoneoftheannoyingsideeffectsofstress G.Howeverit'sbeensuggestedthat25to40timeswillbebeneficial
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Whileit'sthebooksthatmakealibrarybeinginlovelysurroundingsmayprovideinspirationandhelpyoutoworkalittlebitharder.Herearesomeofthecoolestlibrariesoftheworld. LibraryofBirmingham﹣BirminghamU.K. ThenewLibraryofBirminghamissaidtobenotonlyBritain'sbiggestpubliclibrarybutalsothelargestinEurope.DesignedbyDutcharchitectsthisreplacementfortheBirminghamCentralLibrarywasopenedin2013andhasawealthofresourceswithinitswallsincludingadultandkids'librariesmusiccollectionsaShakespeareMemorialRoomandevenagymroom.Gardenscrowntheroofwhilethechangingseasonsbringvariationsintheshadowsandreflectionsinside. NationalLibraryofFrance﹣ParisFrance TheNationalLibraryofFrancewhichnowcontainsanastonishingcollectionof30milliondatesbacktothe14thcenturyandthisroyallibrarywassetupattheLouvrebyKingCharlesV.ThelibrarywasmovedtoRuedeRichelieusitein1868withmajordesignworkcarriedoutbyFrencharchitectsHenriLabrousteandfollowinghisdeathJean﹣LouisPascal.Herethereadingroomsareeleganceitself.Therearemorethanjustbookstobefound. StateLibraryofNewSouthWales﹣SydneyAustralia ThepublicStateLibraryofNewSouthWalesholdsthehonorofbeingtheoldestinstitutionofkindinAustralia.ItwasoriginallytheAustralianSubscriptionLibraryin1826butitwasn'tuntil1942thatitspermanenthomewasready.DesignedbySydneyarchitectWalterLibertyVernonandcompletedin1910themagnificentsandstoneMitchellWingisoneofthearchitecturalhighlights. SeattleCentralLibrary﹣SeattleWashingtonUSA SeattleCentralLibrary'sdistinctivedesignensuresitstandsout.ArchitectRemKoolhaasisoneofthenamesattachedtoitsdesign.Architectssoughttoenvelopthe11﹣storybuildingwithalayeroftransparencyusingaskinofglassandmetal.Thefinishedarticlehousesabout1.45millionbooksandotherthingsaswellasmorethan400computersavailableforpublicuse.Thebuildingwhichopenedin2004wasincludedontheAmericanInstituteofArchitects'listofAmerica's150favoritebuildingsin2007. 1Whichofthefollowinglibraryhasthelongesthistory? A.LibraryofBirmingham. B.NationalLibraryofFrance. C.StateLibraryofNewSouthWales. D.SeattleCentralLibrary. 2WhatcanyoudoinLibraryofBirmingham? A.Attendaconcert. B.Actaplay. C.Takesomeexercise. D.Enjoynewtechnology. 3WhatdoNationalLibraryofFranceandSeattleCentralLibraryhaveincommon? A.Theyhavecomputersavailable. B.Theyweremovedtoanewplace. C.Theywonawardsforarchitecture. D.Theyweredesignedbymorethanoneperson.
IdecidedtoskitotheNorthPole.ItwasafterIsawanadvertisementinanewspaperlookingforpeopletojoinateamtoski350milestotheNorthPole.Backin1996therehadneverbeenawomanfromtheUKwhohadaccomplishedthischallenge.IwonderedwhatitwouldbeliketosurviveintemperaturescoldenoughtofreezeyourfleshinsecondssoIsentofffortheapplicationform. Theapplicationformfullofpicturesofmaleexploresarrived.ThewordsAreyoumanenoughfortheultimate极限的challenge?mademeangryandevenmoredeterminedtogetontheteam. Over500individualsappliedforaplaceintheteamandtheselectionprocessincludedphysicalandpsychologicaltestsdesignedtopickthebestgroup.InonetesttherewasahugeropeladderwehadtoclimbandIfrozeatthetopbecauseIhaveafearofheights.Ithoughtmyhopeswerefadingasmostotherapplicantssailedpastleavingmebehind.ButtwoothershelpedmeoverandlaterIfoundoutthattheorganizerswerenotlookingforamazingindividualsbutgreatteamplayersandthismomenthadshownthemwhowouldtakecareofothersintheteam. Ihadrevealed显示myweaknessandinaplaceliketheArcticyouhavetobeyourselfasthereisnowheretohide.Thesepersonalitiesofaskingforhelpandshowingweaknessarenecessaryforwomentomaster. IrealizedthatbybeingmyselfIcouldsucceed.Iwasselectedfortheteam.IrealizedthatIcouldachievemorethanIeverimagined-moreimportantlybysharingmystorywithothersIcouldinspirethemtotakeastepintothenewworldandrevealmoreoftheirabilities. 1Howdidtheauthorreactonseeingtheadvertisement? A.Shegotcross. B.Shewasdetermined. C.Shegotfrightened. D.Shewashesitating. 2Whatdidtheorganizersviewasthemostimportantintheselectionofnewhands? A.Personalquality. B.Individual-ability. C.Spiritofteamwork. D.Couragetochallenge. 3Whatdoestheautherthinkofwomen'sshowingweakness? A.Beneficial. B.Shameful. C.Merciful. D.Disturbing. 4What'stheintentionoftheauthorinwritingthispassage? A.Toinspireustoprepareforourfuturegoal. B.Toadvisewomenhowtoturntoothers. C.Tomakesuggestionstoherteammembers. D.Toencouragepeopletoexploretheunknown.
ScientistshaveconfirmedthatalmostalltheicecoveringtheBeringSeahasmelted1throwcommunitieslivingarounditsshoresintodisorder.Theregion'sicecover2normalpersistsforatleastanothermonthandthisyearithasdisappeared3earlythananyotheryearexcept2017. Located4thenorthernPacificOceanbetweenAlaskaandrussiatheBeringSeaisexperiencingtheclimatechangeandhasalreadydrawn5attendthisyearforunprecedentedlevelsofwintermelting.InFebruaryrisingArctictemperaturesledtoaroundhalftheregion'sdisappearinginthespaceoftwoweeks. Areport6releasebytheInternationalArcticResearchCentreattheUniversityofAlaskaFairbankshasoutlinedthereal-world7effectofthesestunningenvironmentalchangesonthemanycommunities8inhabittheBeringSearegion. IntheirreporttheInternationalArcticResearchCentrescientists9writethatwhilenoteveryyearwillbeasbadasthisoneiceformationislikelytoremainlowiftheBeringSea'swatersremainwarm.They10warnthatcommunitieswillneedtoprepareformorewinterswithlowseaiceandstormyconditions.
WhenIwasfiveorsixyearsoldIrememberwatchingTVandseeingotherchildrensufferinotherpartsoftheworld.IwouldsaytomyselfWhenIgrowupwhenIcangetrichIwillsavekidsallovertheworld. At17IstartedmycareerhereinAmericaandbytheageof18Istartedmyfirstcharityorganization.Iwentontoteamupwithotherorganizationsinthefollowingyearsandmethelpedandevenlostsomeofthemostbeautifulsoulsternsix-year-oldJasminaAnemawhopassedawayin2010fromleukemia白血病whosestoryinspiredthousandstovolunteerasdonorsto2012whengrandmotherlostherbattlewithcancerwhichistheveryreasonandthedrivingforcebehindtheClaraLionelFoundationCLF.We'reallhuman.Andwealljustwantachanceachanceatlifeachanceineducationachanceatafuturereally.AndatCLFourmissionistoimpactasmanylivesaspossiblebutitstartswithjustone. Peoplemakeitseemtoohardtodocharitywork.Thetruthisyoudon'thavetoberichtohelpothers.Youdon'tneedtobefamous.Youdon'tevenhavetobecollege-educated.Butitstartswithyourneighborthepersonrightnexttoyouthepersonsittingnexttoyouinclassthekiddowntheblockinyourneighborhood.Youjustdowhateveryoucantohelpinanywaythatyoucan.AndtodayIwanttochallengeeachofyoutomakeacommitmenttohelponepersononeorganizationonesituationthattouchesyourheart.MygrandmotheralwaysusedtosayIfyou'vegotadollarthere'splentytoshare. 1Whatdidtheauthorwanttodoatayoungage? A.WatchTV. B.Growupquickly. C.Becomewealthy. D.Helpotherchildren. 2WhatdirectlycausedtheauthortocreateanddeveloptheCLF? A.Asix-year-oldkid'srequest. B.Hergrandmother'sdeathofcancer. C.Manyvolunteers'inspiration. D.Otherorganizations'encouragement. 3WhatdoestheunderlinedwordoneinParagraph2referto? A.Achance. B.Atask. C.Alife. D.Anorganization. 4Whatdoestheauthorsuggestpeopledointhelastparagraph? A.Dolittlethingstohelpthosearoundthem. B.Workhardtogetacollegeeducation. C.Challengetheirfriendstoofferhelp. D.Docharityworkwhateveryouare.
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处多者从第11处起不计分. Onedaymylittlebrotherboughtanicecreaminthestreetenjoyingtoeatingit.Unexpectedhesawhisfriendcomingtowardshimsohehurriedlyhidtheicecreamsbehindhim.Afterhegreetedhisfriendtheybegintotalk.Hisfriendhadthedogwithhim.Whenhestoppedtotalkwithhisbrotherhisdogmovedaround.Thedogwassuchgladtofindtheicecreaminmybrother'shandanditbegantoeatitwithgreaterpleasure.Mybrotherfeltembarrassedthathehadn'tsharedtheicecreamforhisfriendhegavetheicecreamtothedog.Thenheboughtanothertwoforhisfriendandhimself.
氮及其化合物对环境具有显著影响． 1已知汽车气缸中氮及其化合物发生如下反应 N2g+O2g═2NOg△H＝+180kJ/mol N2g+2O2g═2NO2g△H＝+68kJ/mol 则2NOg+O2g═2NO2g△H＝kJ/mol． 2查阅资料2NOg+O2g⇌2NO2g的反应历程分两步 Ⅰ．2NOg⇌N2O2g快 Ⅱ．N2O2g+O2g⇌2NO2g慢 反应I的活化能E1与反应Ⅱ的活化能E2的大小关系为E1E2填“＞”“＜”或“＝”2NOg+O2g⇌2NO2g的反应速率主要由反应填“I”或“Ⅱ”决定． 3温度为T1时在容积为1L的恒容密闭容器中充入0.6molNO2g发生反应2NO2g⇌2NOg+O2g△H＞0达平衡时cO2＝0.2mol/L． ①反应的平衡常数K＝． ②实验测得v正＝k正•c2NO2v逆＝k逆•c2NO•cO2k正k逆为速率常数仅受温度影响．当温度为T2时反应达到平衡状态若k正＝k逆则T1T2填“＞”或“＜”得出该结论的理由是． 4NO2﹣是水体中的主要污染物．碱性条件下强氧化剂过硫酸钠Na2S2O8可脱除水体中的NO2﹣该反应的离子方程式是． 不同温度下达到平衡时NO2﹣的脱除率与过硫酸钠初始浓度的关系如图所示． 比较ab点的反应速率vavb填“＞”“＜”或“＝”．若要提高NO2﹣的脱除率可以采取的措施有写出一点即可．
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
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Forthefirsttimein94yearsthePalaceMuseumhasextendeditsopeninghoursallowingthepublictocelebratetheLanternFestivalatnightintheancientpalace. About3000luckyvisitorsreceivedfreeticketsfromthegovernmentamong1wasZhangZhifua77-year-oldpublicsecurityvolunteer.It'samarkofgratitudeforhervolunteerwork.Itis21trueanhonortobegrantedthisspecialprivilegeZhangsaid. Toguaranteethe3safeofthepalacefestivalorganizers4planthisyear'sLanternFestivaleventusedLEDlightsratherthantraditionalpaperlanternsandredcandles.It'safascinatingeventforvisitorstoabsorb5theyinthefestiveatmosphereinthemuseum.DiscussionofthePalaceMuseum'snewlooklitupsocialmediafollowingTuesday'sdisplay. SincehebecamedirectorofthePalaceMuseumShanJixiang6bringmanychangestotheworld's7largeimperialcomplex建筑群.Onceinaspeechthe64-year-olddirectorsharedhisideaabouthowtomaketraditional8treasurecomealiveagain.Hesaid9matterstoamuseumisnothowmanyvisitorstheyhavebuthowclosetheyare10people'sdailylives.
Celiacdiseaseisrelativelycommon.InfactaccordingtotheCeliacDiseaseFoundationtheautoimmunedisorderaffects1in100peopleworldwide.Howeverwhileitismanageable-thoselivingwithceliacaresimplyadvisedtochangetheirdietandtoavoidgluten面筋-ifandwhenthoselivingwiththeconditiondoeatglutenitcausesanimmune免疫responseinthebody.AccordingtoresearchpublishedinthejournalBMCBiotechnologyanewdrugmayoffermuch-neededrelieftothoselivingwiththecondition. ThemedicalproductwhichhasyettobenamedisbeingdevelopedatViennaUniversityofTechnologyincooperationwithSciotecDiagnosticTechnologiesGmbHAndwhileotherceliacmedicinesseektochangeone'simmunesystemtomakeitlesssensitivethisdrugwillessentiallyturnofftheirritant刺激物.Accordingtoapressreleasetheproductwilldirectlyattack…glutenmoleculestomakethemharmless. ProfessorOliverspadiutheadoftheIntegratedBioprocessdevelopmentResearchgroupatTuWienexplainedtheprocessinastatement.Ourbodiesproduceantibodiespreciselylikeakeytoalock.Thisimmuneresponsemakesthoseantigensharmless.Ofcoursetheprocesssoundssimplerthanitis. TheformationofsuchproteinsinabacteriumisahighlycomplicatedprocessSpadiutexplained.Youhavetopreciselyunderstandthechemicalprocessesinvolvedandparticipateinacomplicatedway. Stillresearchersarehopeful.InfactSpadiutsaidheisconfidentintheproduct'sdevelopmentprocessandresultsWehavenowdevelopedaprocessthatcanbeeasilyreproducedcanbescaleduptoindustrialapplicationanddeliversaverygoodyieldofthedesiredproduct. Assuchresearchersbelievetheproductwillbeavailableasearlyas2021. 1WhatmaycauseCeliadiseaseaccordingtotheresearch? A.Immunedisorder. B.Dietvariety. C.Livingconditions. D.Bodyproblems. 2Whyisthenewdrugeffective? A.Becauseitchangesone'simmunesystem. B.Becauseitmakestheirritantdonoharm. C.Becauseitattacksonesimmunesystem. D.Becauseitmakestheimmunesystempowerful. 3HowdoesOliverSpadiutexplaintheworkofthenewdrug? A.Bycomparingitwithourbodies. B.Bydescribingitschemicalprocess. C.Bydefininganordinarybacterium. D.Bycommentingontheresearchgroup. 4What'sOliverSpadiut'sattitudetothedevelopmentofthenewdrug? A.Objective. B.Doubtful. C.Uncertain. D.Optimistic.
铁元素是人体不可缺少的微量元素． 1基态铁原子价电子排布式为． 2KSCN可用于Fe3+的检验其对应的硫氰酸分子H﹣S﹣C≡N中σ键和π键之比为C原子的杂化方式为． K3FeCN6可用于Fe2+的检验其阴离子的配体是． 3不锈钢常含有铬Cr和镍元素． ①第一电离能的大小FeCr填“＞”“＜”或“＝”． ②已知Ni2+和Fe2+的离子半径分别为69pm和78pm根据岩浆晶出规则岩浆冷却过程中NiO和FeO中先结晶的是原因是． 4铁镁合金是目前已发现的储氢密度最高的储氢材料之一其晶胞结构如图所示． ①距离Mg原子最近的Fe原子个数是． ②若该晶体储氢时H2分子在晶胞的体心和棱心位置则含Mg96g的该储氢合金可储存标准状况下H2的体积约为L．
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词符号∧并在其下面写出该加的词. 删除把多余的词用斜线\划掉. 修改在错的词下面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. WhenIwasveryyoungIstayedatmyhometownwithmygrandma.Shewasadiligentwoman.Shelikestogrowvegetablesortakescareofallthehouseworks.Thoughmyparentsoftenaskhertoquittheworkmygrandmaneverlisten.Shetakesthatshedoesashergreatjoy.IunderstandherbecauseIseehersmileandsatisfiedwithlife.Severalmonthsbeforemyfatherboughtforheranewsmartphone.AndduringtheSpringFestivalIinstructedheronhowemailandusetheInternet.AsidefromemailingshethinksitfeelsgreatlytotalktotheirgrandchildrenonWeChat.
Aquickreviewofsuccessesandfailuresattheendofyearwillhelpyouryearahead. A.shape B.switch C.stretch D.sharpen
1.Whereasthenorthernhemisphereisinthemiddleofwinteraustraliansarebakinginsummerheat.ItisnotunusualtohaveChristmasDaywellintothemid30degreesCelsiusornear100degreesFahrenheit. Atraditionalmealincludesaturkeydinnerwithhamandpork.AflamingChristmasplumpuddingisaddedfordessert.IntheAustraliangoldrushesChristmaspuddingsoftencontainedagoldnugget金块.Todayasmallfavourisbakedinside2Anothertreatismincepies. SomeAustraliansandparticularlytouristsoftenhavetheirChristmasdinneratmiddayonalocalbeachBondiBeachinSydney'seasternsuburbsattractsthousandsofpeopleonChristmasDay.3Iftheyareathomethedayispunctuatedbyswimminginapoolplayingcricketoutthebackyardandotheroutdooractivities. 4CarolsbyCandlelightisheldeveryyearonChristmasEvewheretensofthousandsofpeoplegatherinthecityofMelbournetosingtheirfavouriteChristmassongs.Theeveningislitbyasmanycandlesaspeoplesingingunderacleancutnightsky.5SydneyandtheothercitiesalsoenjoycarolsintheweeksleadinguptoChristmas. A.Oneyouwillenjoyiscoming. B.ChristmasinAustraliaisoftenveryhot. C.WhataChristmaswereallycanhavetogether! D.TheskywithitsSouthernCrossstarsislikeamirror. E.Otherfamiliesenjoytheirdaybyhavingapicnic. F.Whoeverfindsthisknowshe/shewillenjoygoodluck. G.ThewarmweatherallowsAustralianstoenjoyatraditionwhichstartedin1937.
TheJapanesehavealwaysbeenattheforefrontatdeploying利用robotstoperformjobsthataretraditionallydonebyhumans.OverthepastyearhumanoidrobotshavebeenseenhelpingcustomersattheMitsubishiBankandevenfillinginforhumansciencecommunicatorsatmuseums.ThereforeitisnotsurprisingtohearthatthecountryhastheworldsfirsthotelthatisstaffedalmostentirelybytheAndroids! Theaptly巧妙地namedHenn-nastrangeinJapaneseHotelwhichopeneditsdoorsonJuly17islocatedatNagasaki'sHuisTenBoschthemepark.ItistheideaofHideoSawadaaJapanesebusinessmanwhoisfascinatedbythepossibilityofreplacinghumanswithrobots.Hisaimistohavethisfuturistichotelberunmainlybytheintelligenthumanoids. Guestschecking-inarewelcomedbyafamilyfriendlyEnglish-speakingrobotwearingabowtieandbell-hop侍者hat.Thoughexperiencedathisjobhedoesrequestguestsnottoaskhimadifficultquestionsinceheisafteralljustarobot!Thoseseekingamoreregularexperiencecanapproachthehuman-likeJapanese-speakingrobot. Whenreadyvisitorscanrequesttherobotporterstohelpcarrybelongingstotheirroom.Thosethatneedtostowawayvaluablescanhandthemtoahelpfulrobotwhowillplacetheminsideanindividualsafeboxinexchangeforasmallfee.Aone-foot-highconcierge管理人isavailabletoprovideinformationaboutthehotel'samenities便利设施nearbyattractionsandevenorderataxiifneeded. Sohowmuchdoesitcosttoliveinthiscrazycoolhotel?Itdependsonwhenyoudecidetogo.Duringthelowseasonguestscangetawaywithpayingaslittle＄60anightforabasicroom.Howeverduringthepeakseasonwhenratesaredeterminedbyanonlineauctionthepricecangetashighas＄153. 1WhatisHideoSawadainterestedin? A.Makingdifferentkindsofrobots. B.Takingtheplaceofhumanswithrobots. C.Settingupmorehotelsrunbyrobots. D.Makingrobotsmoreintelligent. 2Fromthethirdparagraphwecanknowthat. A.theJapanese-speakingrobotwelcomestheguests. B.thehumanlikerobotcanspeakJapaneseandEnglish. C.thehuman-likerobotisbetterskilledatitsjobthantheotherrobots. D.theEnglish-speakingrobotcananswersimplequestions. 3Theunderlinedphrasestowawaymostprobablymeans. A.purchase B.change C.store D.replace 4Whatcouldbethebesttitleforthepassage? A.World'sfirstrobot-staffedhotelisopenforbusiness. B.Japanesetopsthefirstinmakingrobots. C.RobotscanreplacehumansinJapanesehotels. D.TheaptlynamedHenn-naHotelatathemepark.
Amaterialcanbereallyspecialwhenitwasnamedaftertheplacewhereit1createoriginally.That'certainlythecase2china.Andofalltypesofchinawhiteporcelain瓷isamongthemostfamous. Nowadaysthe3traditionmaterialhastakenonamodernlookinthe4handoffourChineseartistsintheModernWhitePorcelainExhibition.Andthekeywordhereismodern.Oneoftheworks5beaporcelainboat.Butlook6attentiveandyou'11seethattheboat7buildwithporcelainlookslikeatakeoutbox.Insidetheboatisastatueofababy.Thebabystandsforhumansandtheboatis8supportslife.Itsuggestswemayhavedonesomedamageto9environmentandthatwe'retreatinglifelikefastfood. Allthefourartistsgavewhiteporcelainamodemstyleeachin10theyownway.Andthisiswhattheexhibition'sthemecomesfrom.It'sadialoguebetweenthepastandthepresent.
Thereismoreofaconnectionbetweenfoodandculturethanyoumaythink.Onanindividuallevelwegrowupeatingthefoodofourculture.Itbecomesapartofwhoweare.Manyassociatefoodfromourchildhoodwithwarmfeelingsandgoodmemoriesandittiesustoourfamiliesholdingaspecialandpersonalvalueforus.Foodfromourfamilyoftenbecomesthecomfortfoodweseekasadultsintimesoffrustrationandstress. Onalargescaletraditionalfoodisanimportantpartofculture.Italsooperatesasanexpressionofcultureidentity.Immigrantsbringitwherevertheygoanditisasymbolofpridefortheircultureandmeansofcopingwithhomesickness. Manyimmigrantsopentheirownrestaurantsandservetraditionaldishes.Howeverthefooddoesnotremainexactlythesame.Somematerialsneededtomaketraditionaldishesmaynotbereadilyavailablesothetasteandflavorcanbedifferentfromwhattheywouldprepareintheirhomecountries.Additionallyimmigrantsdonotonlyselldishestopeoplefromthesamecountriesasthembuttopeoplefromdifferentcountries.Thereforetheyhavetomakesmallchangesabouttheoriginaldishestocatertoawiderrangeofcustomers.Thosechangescancreatenewflavorsthatstillkeeptheculturalsignificanceofthedishes. Weshouldembraceourheritage传统throughourculture'sfoodbutalsobecomemoreinformedaboutotherculturesbytryingtheirfood.Itisimportanttorememberthateachdishhasaspecialplaceintheculturetowhichitbelongsandisspecialtothosewhoprepareit.Foodisawindowintocultureanditshouldbetreatedassuch. 1What'sthefunctionoffoodmentionedinthearticle? A.Tohelpmotivatehomesickness. B.Toshownationalidentity. C.Toreflectacountry'shistory. D.Toshowacommunity'ssuperiority. 2WhatdoestheunderlineditinParagraph2referto? A.Thespecifictraditionalfood. B.Thenationalculture. C.Atraditionalexpressionoffood. D.Theold-fashionedtaste. 3Whydosomeimmigrantshavetochangetheoriginaldishesintheirrestaurant? A.Toattachculturalimportancetotheirdishes. B.Toannouncethebeginningoftheirlifeonforeignsoil. C.Tomakethedishespopularamongcustomers. D.Topresenttheirownfoodcultureinanewway. 4What'stheauthor'sattitudetowardsdifferentfoodcultures? A.Negative. B.Balanced. C.Unfair. D.Unchangeable.
SydneyStreetArtWalkingTour Youcangetamuchricherexperiencebytakinga2-hourwalkingtourinthecompanyofartistsanddesignerswhocanexplainthestoriesbehindthework.WanderthroughthestreetsofSydneyanddiscoveritsrichcultureofgraffitimuralismandtaggingwhilelearningabouttheartists.Meetandgetinsightfromlocalcharactersandtoasttheexperiencewithanincludedcraftbeer. SydneyBondiBeachWalkingTour ExperiencethesunsandandsurfatAustralia'smostpopularbeachwiththis1.5-hourwalkingtourofBondiBeach.SeewherethefamousBondiRescueTVshowisfilmedandlearnhowBondiBeachbecameahotspotfortouristssurfersandfamouspeople.AlongthewayadmiretheBondiAboriginalrockartsitesposeforphotosbytheBondiPavilion. SydneyVividLightWalkingTour MakethemostofVividLightSydney'sspectacularlightfestivalwiththissmallgroupwalkingtour.Overthecourseof2hoursyourlocalguidewillleadyouthroughthecity'sopen-airgalleryoflightequipmentstoppingatcelebratedworks.LearnabouttherichpastsofCircularQuayandTheRocksasyoumakeyourwaythroughthesehistoricneighborhoods. OperaHouseGuidedBackstageTour GetauniqueexperienceofOperaHouseonabackstagetourfortheperformingarts.Yourguidesharesstoriesaboutthereal-lifedramasbehindthecurtainandwell-knownhistory.Gobehindthescenestoseepartsoftheoperahousenormallyreservedforstaffandperformers.WrapupthisfascinatingmorningtourbysittingdownwithyourcompanionsforafullAustralianbreakfastintheGreenRoomwhereperformersrelaxbeforegoingonstage. 1Whocanhelpyouifyouwanttoappreciatethestreetart? A.Yourguide. B.Localpeople. C.Artistsanddesigners. D.Artstudents. 2WhatcanyoudoontheOperaHouseGuidedBackstageTour? A.Enjoyinterestingstories. B.Admiretherockartsites. C.WatchthefamousTVshow. D.Meetwell-knownperformers. 3Whichtourisbetterexperiencedduringthenight? A.SydneyStreetArtWalkingTour. B.SydneyBondiBeachWalkingTour. C.SydneyVividLightWalkingTour. D.OperaHouseGuidedBackstageTour.
WhilevisitingtheNorthpoleinwintermaynotbeatthetopofyourbucketlisttheever﹣changingICEHOTELwhichopeneditsdoorstovisitorsonDecember14thisyearmaychangeyourmind.200kmnorthoftheArcticCircleintheSwedishvillageofJukkasjārvithehotelwhichiscarvedentirelyfromiceisrebuiltannually. The35roomsbuilttoaccommodatevisitorsonallkindsofbudgetsvaryfromexpensivesuitestobasicroomsthatarefurnishedwithjustanicybedandareindeerskin.AmongthehighlightsthisyearistheSpruceWoodssuite.SculptedbyChristopherPascoeandJennieO'KeefeofCanadaitdescribesacampingscenecompletewithaclassicmicrobusaforestandevenanartificialcampfire. Thereisalsotheartfully﹣carvedLivingOceansuitetoremindvisitorsoftheimportanceofsavingouroceans.Theroomisfullofcarvedsealifethatincludescoralandasharkswimmingrightovertheicebed.Thesuiteisinspiredbyglobalwarmingandtheoverfishingthataffectsouroceans.saysartistJonathanPaulGreen.IalsothinktheideaofusingfrozenwaterfromariverinnorthernSwedentocreateanoceanwithshellsfishandcoralsisexciting. ThenearbyHavensuiteisamagicalgateoficeguardedbytwolargeanimals.WeareinspiredbythemeetingbetweenpeopleandwanttocreateanexperiencethatinvitescuriosityandcreativitysaysartistJonasJohansson.Itfeelslikeadreamtogettoworkwithicethatallowsourloveforlightshineandreflectiontowanderfreelyfromthoughttocreation. Regardlessofwhethervisitorsselectthecarvedsuitesorthebasiciceroomsthetemperatureisalwayssettoabone﹣chilling﹣5℃!Thatiswhyguestsareadvisedtosnuggle蜷缩upinsidesleepingbagsandwearglovesandwinterhatsallnight.Notsurprisinglymostendupspendingjustasinglenightatthisuniquehotelbeforemovingontotheconventionalandwarmerhotelsnearby. 1Whatdoestheunderlinedphrasebucketlistmeaninthetext? A.Ashoppinglistofbuckets. B.Alistoftravellingdestinations. C.Alistofexpensivehotels. D.Alistofexcitingideas. 2Whatcanweknowabouttheicehotel? A.Itisrebuilteveryyear. B.Itsroomsareexpensive. C.Itorganizescampingactivities. D.Itliesinacoastalcity. 3WheredoestheinspirationofLivingOceansuitecomefrom? A.Artandliterature. B.Oceanlifeandvoyage. C.Climatechangesandhumaninfluence. D.Themeetingofpeople. 4Whichofthefollowingisthebesttitleforthetext? A.AnAdventuretotheNorthPole B.AnExperienceClosetoNature C.ATasteofColdANightinaVillage D.AWinterDestinationSweden'sIceHotel
OnDec.6KelseyZwickboardedFlight588fromOrlandotoPhillywithLucyoneofher11-month-oldtwindaughters.Lucywasborn11weeksprematurely早产and1fromseverelungdiseaseasaresultofacomplication并发症ofthat.Thebravebabygirlwasonoxygen2untilrecently.TodayLucyneedsoxygenatnightandwhile3onesmallgooddeedremindedZwickhow4sheandherhusbandYuritrulyare. Tothe5in2D.Idon'tknowyoubutIimagineyousawus6.Iwaspushingastroller婴儿车hadadiaper尿布bagonmyarmandalso7anoxygenmachineformydaughterZwickwroteonherFacebookpost.We8theplanesatdowninourwindowseatandmade9tothosearoundusabouthavingtositbymyyelling-but-happybaby.Theflightattendantcameoverandtoldmeagentlemanwaswaitingto10seatsshewrote.Youweregivingupyourcomfortablefirst-classseattous.Notableto11tearsIcriedmywayupthe12whilemydaughterLucy13!Shefeltitinherbonestoo…realpuregoodness.Ismiledandthankedyouasweswitchedbutdidn'tgetto14youproperlythemomcontinued. So…thankyou.Notjustfortheseatitselfbutfor15.Forseeingusandrealizingthatmaybethingsarenot16easy.Fordecidingyouwantedtoshowarandomactof17tous.Ican'twaittotellLucysomeday.Inthemeantime…wewillpayit18. Zwick'sstorytouchedtheheartsofmanygivingriseto19commentsonthepostthathassincebeen20over164000times. 1A.recovers B.suffers C.results D.benefits 2A.test B.health C.survival D.support 3A.playing B.flying C.sleeping D.growing 4A.astonished B.amused C.blessed D.anxious 5A.man B.attendant C.assistant D.guide 6A.somewhere B.anywhere C.nowhere D.everywhere 7A.filling B.pumping C.following D.dragging 8A.booked B.reserved C.pre-boarded D.quit 9A.complaints B.comments C.offers D.jokes 10A.choose B.switch C.accept D.occupy 11A.burstinto B.giveback C.holdback D.breakinto 12A.passage B.airport C.flight D.pilot 13A.shouted B.crawled C.talked D.laughed 14A.meet B.thank C.recognise D.accept 15A.noticing B.donating C.reminding D.forgiving 16A.just B.right C.always D.ever 17A.forgiveness B.advantage C.kindness D.donation 18A.forward B.downward C.backward D.toward 19A.passive B.supportive C.possible D.negative 20A.made B.chosen C.researched D.shared
IjustcountedhowmanyforeignlanguagesI'vestudiedsofarinmylifeandit'sbeentwelve! IalwaysfollowmyinterestsandfindwaystoputmylanguagelearningintothingsI'malreadyinterestedin.Iliketoreadblogs博客inotherlanguages.1.ForthemostpartbloggerstendtowritethesamewaytheyspeaksoIdon'thavetoworrymuchaboutadoptingstrangetermsthatareonlyusedinwriting. Moviesarealsoareallygoodtoolespeciallyifyoucanfindsubtitlesinthelanguageyou'relearning.2theywillstillkeepyourbrainlisteningandreadinginthesamelanguage.Musicisanotherwaytostartlisteningtothingsinyournewlanguage.PersonallyI'msobadatunderstandinglyrics歌词eveninEnglishsothisonedoesn'treallyworkformebutIhavefriendswholearnalanguagethroughlyrics.Gamesareofcoursealsoanexcellentwayofstudyinganewlanguage.Alotoflanguagelearningcomputerprogramsincludegames.I'msupercompetitiveandifIplayanyofthemIcanbehookedforhours.3. Whentheinitialexcitementoflearninganewlanguagebeginstofadeitcanbehardtostickwithit.ThehardestbitformeiswhenI'mcomfortableenoughwithalanguagetounderstandmostthingsandmakemyselfunderstood.I'mactuallystuckatthisstageinNorwegian.4.IdeallyIshouldsignuptotakeabiglanguageexam.EachtimeIstartgettingself﹣satisfiedit'stimetotakeanewcourseorsignupforonlinelessonsortakeupsomesortofchallengethatwillrequiremetolevelupmyskills. 5.ThebestlanguageclassI'veevertakenwasmybeginner'sRussiancourseatuniversitywheremyprofessorneverusedanyEnglish.ItgottothepointwhereIwouldkindofjustforgetaboutEnglishwhileinRussianclasswhichhelpedmetoreallyimmersemyselfintheRussianlanguageanddoawholelotwiththelimitedRussianIhad. A.That'sreallyuncomfortable B.Whateverlanguagesthey'retranslatedinto C.IalsotrytothinkinthelanguageI'mlearning D.It'stimewellspentifI'mlearningthelanguage E.Computergamesalwaysmakemefeelwornout F.Thoughtheydon'talwaysexactlymatchwhat'sbeingsaid G.Ifoundthemtheperfectlearningtoolbecausethey'reusuallywritteninorallanguage
AwomangraspedherphonetoherheartthewayaministermightholdaBible.Shewasanxioustotakeapictureofabunchofflowersthatsatnot10feetawaybutfirstshehadtogetthroughacrowdofotherspushingtodothesame.ThecauseofthiswasBouquetstoArtoneofthemostpopularannualeventsatthedeYoungMuseuminSanFrancisco.Forthe34thyearartistswereaskedtocreateflowerbunchesthatrespondtopiecesofartondisplayfromancientcarvingstocontemporarysculptures.It'stimetotakeaphototopostonInstagrambuttothepointthatithasbecomeaproblem. InrecentyearsthedeYoungreceivedmorethanathousandcomplaintsfrompeoplewhofeltthatcellphoneshadruinedtheirexperience.Infactinstitutionsoffineartaroundtheworldfacesimilarproblemsasthedesiretotakephotographsbecomesahugedrawformuseumsaswellassomethingthatupsetssomeoftheirvisitors.SothedeYoungrespondedwithakindofcompromisecarvingoutphotofreehoursduringtheexhibition'ssix-dayrun. Onecommoncomplaintintheongoingdebatesovertheeffectofsocialmediaonmuseumcultureisthatpeopleseemtobemissingoutonexperiencesbecausetheyaresobusycollectingevidenceofthem.ArecentstudyinthejournalPsychologicalSciencesuggeststhereissometruthtothisitfoundthatpeoplewhotookphotosofanexhibitratherthansimplyobservingithadahardertimerememberingwhattheysaw.Buttheissueiscomplicatedfortheprofessionalsrunningmuseums.LindaButlerthedeYoung'sheadofmarketingcommunicationsandvisitorexperienceacknowledgesthatnoteveryonewantsamuseumtobeaphoto-takingplayland.YetalotofotherpeopledoandshethinksthatthedeYoungisinnopositiontojudgethatonemotivationforbuyinga＄28ticketismorevalidthananother.Ifweremovedsocialmediaandphotographyshesayswewouldriskbecominglesspopular.Ifthisisabattlesignsindicatethatthepro-phonecrowd亲手机人群hasalreadywon. 1WhatwerethecrowdeagertodoinParagraph1? A.ToholdaBible. B.Toadmireflowers. C.Totakeaphoto. D.Toseetheexhibition. 2HowdidthedeYoungrespondtothecomplaints? A.Bysettingperiodswithoutphoto-taking. B.Bymakingtheexhibitionfreeofcharge. C.Bycompromisingwithotherinstitutions. D.Bygivingextratimetotakephotosfreely. 3Whatcanweinferabouttheuseofsocialmediainmuseumsaccordingtotherecentstudy? A.Ituncoversthetruth. B.Itaccumulatesevidence. C.Itcausescomplaints. D.Itplaysanegativerole. 4WhichofthefollowingmayLindaButlersupport? A.Cateringtovisitors. B.Reducingadmissionprices. C.Reservingjudgementinpublic. D.Banningsocialmediaandphotography.
Sincevacationseasonisoverit'stimetostartthinkingaboutwaystoimproveyourtravelliteracy-yourabilitytogetaroundwithoutlookinglikeafoolishtourist-beforeyournexttrip. Readabook. Therighttravelbookcaneducateandinspire.GoodwritinghelpsmetolookatmysurroundingswithneweyessaysMarthaMerrittdeanofinternationaleducationattheUniversityofRichmond.Abookabouttravelisnotnecessarilyatravelguidebook.Itcansimplybeabook-fictionornonfiction-aboutaplace. Findyourattractivegrouponsocialmedia. That'swhatTiffanyBurnettewhorunsadesigncompanyinPhiladelphiadoesbetweentrips.ShespendstimeonFacebook'stravelgroupsconnectingwithnewfriendsandlearningnewtravelskills. Learnalanguage. Ispend15to20minuteseachdayworkingonmybasiclanguageskillssothatIcanatleastshowrespectsaysJeffWilsonthehostofRealRailAdventuresonPBSPhraseslike‘please'‘thankyou'countingandaskingbasictravelquestions.MichelleWilliamswhohastraveledtomorethan50countriessaysAnapplikeDuolingoisagreatwaytoimproveyourlanguageskillsbeforeyoutravel. Whilethesetoolscouldmakeyouasmartertraveleronlyonethingisguaranteedtoimproveyourtravelliteracy.Youhavetogetoutofyourseat.YoucanstartyourjourneybyvisitingyourtravelagentfromtheUnitedStatesTourOperators. 1Whatcanyouimproveafteryoureadthepassage? A.Waysofthinking. B.Abilitytoread. C.Abilitytotravel. D.Waysoflearning. 2HowdoesTiffanyBurnettelearnnewtravelskills? A.Byreadingtravelbooks. B.Byconnectingwithtravelgroups. C.Byworkingonlanguages. D.Byrunningatravelcompany. 3Whowouldliketolearnlanguageswithanapp? A.MarthaMerritt. B.TiffanyBurnette. C.JeffWilson. D.MichelleWilliams.
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