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如图是氢氧化钠溶液和盐酸用滴加方式反应时，溶液pH随滴入溶液体积变化的曲线．当滴入溶液的体积为15mL时所得溶液中的溶质为 （写化学式），若在此溶液中滴入石蕊试液，溶液呈 色．
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右图是氢氧化钠溶液和盐酸用滴加方式反应时溶液pH随滴入溶液体积变化的曲线1氢氧化钠和盐酸恰好完全反应
右图是氢氧化钠溶液和盐酸用滴加方式反应时溶液pH随滴入溶液体积变化的曲线1氢氧化钠和盐酸恰好完全反应
如图是氢氧化钠溶液和盐酸用滴加方式反应时溶液pH随滴入溶液体积变化的曲线.1氢氧化钠和盐酸恰好完全反
右图是氢氧化钠溶液和盐酸用滴加方式反应时溶液pH随滴入溶液体积变化的曲线1氢氧化钠和盐酸恰好完全反应
右图是氢氧化钠溶液和盐酸用滴加方式反应时溶液pH随滴入溶液体积变化的曲线根据曲线判断正确的是
将盐酸滴入氢氧化钠溶液
将氢氧化钠溶液滴入盐酸
将盐酸滴入氢氧化钠溶液或将氢氧化钠溶液滴入盐酸都可以
当滴入溶液的体积为5mL时，所得溶液中的溶质为NaCl
室温时氢氧化钠溶液与盐酸反应用逐滴滴入的方式混合溶液的pH随滴入溶液体积变化如右下图所示下列有关说法
氢氧化钠和盐酸恰反应时溶液的pH等于7
滴入溶液体积为5mL时，向溶液再加几滴紫色石蕊试液溶液呈红色
当滴入溶液的体积为15mL时，溶液中的溶质是NaCl和NaOH
该图像表示的是将盐酸液滴入氢氧化钠溶中
1向盛有氢氧化钠溶液的锥形瓶里滴入几滴酚酞溶液溶液变成色pH7填>
如图是氢氧化钠溶液和盐酸用滴加方式反应时溶液pH随滴入溶液体积变化的曲线.1氢氧化钠和盐酸恰好完全反
右图是氢氧化钠溶液和盐酸用滴加方式反应时溶液pH随滴入溶液体积变化的曲线1氢氧化钠和盐酸恰好完全反应
右图12是氢氧化钠溶液和盐酸用滴加方式反应时溶液pH随滴入溶液体积变化的曲线1氢氧化钠和盐酸恰好完全
如图是氢氧化钠溶液和盐酸用滴加方式反应时溶液pH随滴入溶液体积变化的曲线.1氢氧化钠和盐酸恰好完全反
室温时将氢氧化钠溶液与盐酸用滴加方式反应时溶液的pH随滴入溶液体积变化如右下图所示下列有关说法不正确
该图像表示的是将氢氧化钠溶液滴入盐酸中
氢氧化钠溶液和盐酸恰好完全反应时。溶液的pH等于7
当滴入溶液的体积为5mL时，所得溶液中的溶质只有NaCl
滴入溶液体积为15mL时，再加几滴紫色石蕊试液溶液呈蓝色
右图是氢氧化钠溶液和盐酸用滴加方式反应时溶液pH随滴入溶液体积变化的曲线1氢氧化钠和盐酸恰好完全反应
如图是氢氧化钠溶液和盐酸用滴加方式反应时溶液pH随滴入溶液体积变化的曲线1氢氧化钠和盐酸恰好完全反应
如图是氢氧化钠溶液和盐酸用滴加方式反应时溶液pH随滴入溶液体积变化的曲线1氢氧化钠和盐酸恰好完全反应
右图是氢氧化钠溶液和盐酸用滴加方式反应时溶液pH随滴入溶液体积变化的曲线1氢氧化钠和盐酸恰好完全反应
如图是向盐酸溶液中滴加氢氧化钠溶液溶液pH随滴入溶液体积变化的曲线.1氢氧化钠和盐酸恰好完全反应时溶
右图是氢氧化钠溶液和盐酸用滴加方式反应时溶液pH随滴入溶液体积变化的曲线1氢氧化钠和盐酸恰好完全反应
右图是氢氧化钠溶液和盐酸用滴加方式反应时溶液pH随滴入溶液体积变化的曲线.1氢氧化钠和盐酸恰好完全反
下图是氢氧化钠溶液和盐酸用滴加方式反应时溶液pH随滴入溶液体积变化的曲线1氢氧化钠和盐酸恰好完全反应
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6分OnSept.19theWestchaseElementaryPTAParent﹣TeacherAssociationwillholditsWizardWalk.TheWizardWalkisalocallyorganizedhealthyalternativetotraditionalproductsalesthatwillraisemoneytosupportallPTAprogramsandeventsfortheyear.Remainingmoneywillbeappliedtoanon﹣goingcapitalcampaigntobuildanewplayground.TheWizardWalkwilltakeplaceonWednesdaySept.28from8a.m.tonoonattheWestchaseRecreationCenterField.Volunteerswillbeneededthroughouttheevent.LookformoreWizardWalkinformationandvolunteersign﹣uplinksinyourstudent'sfolderorcontact联系LauraKohleratpresident@westchasepta.org.ThePTAisalsoholdingayear﹣longSpiritStickfundraiser资金筹集活动.SpiritSticksaresmallandstudentscandisplaythemonakeyringontheirbackpackswhichrepresentavarietyofinterestsandaccomplishments.TherewillbemanywaystoearnaSpiritStickgoodgradesgreatbehaviorexceptionalattendanceetc.andopportunitiestopurchasethelimitededitionsticksforjust$1everyFridayinthecourtyard.FormoreinformationcontactNikkiPivnichnyatfundraising@westchasepta.org.InadditiontonewfundraisingprogramsthePTAispartneringwithourGuidanceCounselorMrs.KierstenRivenburgonanewcampaigncalledKindnessCounts.Lookfornewrecognitionsandrewardsaswecontinuetopromotekindnessfromourchildrenstaffandparentsthroughouttheyear.FormoreinformationcontactLauraSmithatkindnesscounts@westchasepta.org.NowinitseighthyeartheAfter﹣SchoolEnrichmentProgramASEisbringingbacksomefavoriteprogramsandofferingsomenewones.Studentswillhavetheopportunitytoexploreanddevelopavarietyofnewinterests.Classscheduleswillbeavailablesoon.RegistrationstartsonSept.7.FallsessionbeginsSept.21﹣22.FormoreinformationcontactJenniferNewmanatase@westchasepta.org.1WhatisthepurposeoftheWizardWalk?A.Todonatetoanon﹣goingtrainingprogram.B.Toexchangetraditionalproducts.C.Tosupportthebuildingofanewschoolbuilding.D.Tocollectmoneyforcertainprogramsandevents.2WhatcanwelearnaboutSpiritSticks?A.Theycanbeusedaskeyrings.B.Theyaremadebystudentsthemselves.C.Thelimitededitionstickscanbebought.D.Onlystudentswithgoodgradescangetthem.3Ifstudentswanttodevelopanewhobbytheycangetintouchwith.A.LauraKohlerB.NikkiPivnichnyC.LauraSmithD.JenniferNewman
ManypeoplestrugglewithsayingNo.1Rememberjustbecauseyoucandosomethingdoesnotmeanitisrequired.UnderstandyoualwayshavearighttoturndownaninvitationorrefuseafavorandfigureoutthebestwaystosayNo.Herearesomespecifictips. Giveyourselfpermissiontosayno.ManypeoplehaveanimmediatereactiontosayYeswhenthey'reaskedtodosomeoneafavor.KeepinmindyouareneverrequiredtosayYes.It'sactuallyokaytosayNosometimes.AcceptthisasyoupreparetosayNotosomeone.2 Setupyourpersonalboundaries.3Howeverthatreasondoesnothavetobeconcrete.Manypeoplethinkiftheycandosomethingtheyshould.YourreasonforsayingNocanbeasimplematterofyourownpersonalboundaries.Thinkaboutwhatboundariesyouhaveandacceptthefactyou9reallowedtostaytruetothem. 4Peopleoftenwon'ttakeNoforananswer.IfyousayNotosomeonetheymaygiveyouvariousreasonstotryandchangeyourmind.Staydeterminedforyourdecisionanddonotgiveineasily. PracticesayingNo•ItmaysoundsillybutyoucanactuallypracticesayingNo'alone.5PracticegivingafirmNotosomeonesoyougetcomfortablewiththewords.ManypeoplearenervousaboutsayingNoandmaysayYesduetoanxiety.Practicingcanhelpgetridofsomeofthisanxiety. A.ThiswillhelpyousayNowithease. B.Beawareofpotentialpersuasiontechniques. C.Findagoodchancetostandinfrontofacrowd. D.It'salwayseasiertosayNoifyouhaveareason. E.Trystandingbeforeamirrorandlookingatyourself. F.It'srathereasyforyoutosetupyourpersonalboundaries. G.IfsomeoneasksyouafavoryoumayfeelyouhavetosayYes.
Findingsparechangeoranextradollarinyourpocketalwaysfeelslikeavictory1.WithoutthinkingyoumighthearthefamiliarrhymeinyourheadwhenyouspotoneonthesidewalkFindapennypickitup.Alldaylongyou'llhavegoodluck. Accordingtoonetheorypeopleoriginallythoughtpennieswouldbringgoodluckbecauseofreligiousbeliefs2.Thistheoryalsofueledothersuperstitions迷信行为likecharmbraceletsandmetalhorseshoeswhicharealsolucky.Plusmetalcurrencylikepennieswerelinkedtomorewealthandthusmoreluck.Thatmightbeastraightforwardexplanationbutotherelevenstrangeoriginsofothereverydaysuperstitionsurearen't. Anotherreasonpeoplemighthaveclaimedpennieswouldbringgoodluckcomesdowntothebattlebetweengoodandevilwhichisliketwosidesofthecoin.Findingapennyheadsup.meantyou'dhaveluckonyoursidebuttailsupwouldmeantheopposite3.SomepeoplesaythatifyoufindapennytailsupyoushouldturnitovertomakeitheadsupsothatitcanbringlucktowhoeverfindsItnext. 4.TheIrishhalf﹣pennywhichstoppedcirculatingin1987isespeciallyluckytoanyonewhofindsone.Thenthere'salsotheoldsayingSomethingoldsomethingnewsomethingborrowedsomethingblueandapennyintheshoe.5. A.PenniesFromHeavenisawayofthinking B.althoughtheexactreasoningforthisisunknown C.butevenfindingsomeThingworthaslittleasapenny1ssatisfying D.Nomatterwhatthereasonispenniesarepartofmanyluckytraditions E.Placinggsilversixpenceinthebride'sleftshoeissaidtobeasymbolofwealth F.Theseareallthingsbridesshouldwearontheirweddingdayforgoodluckintheirmarriage G.Folktalesfromancientcivilizationssaidmetalsweregiftsfromgodsintendedtoprotectpeoplefromevil
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. LastMondayithitmethatmybelovedgrandmotherbirthdaywasaroundthecorner.Idecidedtomakeheranuniquepresent.WithouttheslightesthesitationIthrewmeintocreatingthispricelessalbum.Iturnedonthecomputercarefullyselectedsomephotosaddedupsomedecorationsanddesignedeachpagescarefully.Eventuallyanalbumofloveproduced.LookedatmyworkwithsatisfactionIcouldn'thelpimagininghowdelightedlymygrandmawouldbe. Soonthebigdayarrived.AtthebirthdaypartyIpresentedthealbumtoGrandma.Themomentshesawthespecialgiftshehugsmeaffectionatelytearsrollinginhereyeswhatmademyparentssmilegenuinelyaswell.
Whilestaringoutofthewindowduringaflightnoteveryonewillthinkcarefullyaboutthequestionwhyairplaneshaveroundedwindowsratherthansquareones. Overtheyearsaerospaceengineeringhasmadehugestepsinairplanetechnologymeaningplanescancarrymorepassengersandgofaster.Theplaneshavealsochangedshapetoincreasesafety﹣includingthewindows.Ascommercialairtraveltookoffinthemid﹣20thcenturyairlinecompaniesbegantoflyathigheraltitudestolowertheircost﹣theairdensity密度isloweruptherecreatinglessdrag阻力forairplanes.Howeverhigheraltitudescamewithproblemslikethefacthumanbeingscan'treallysurviveat30000feet.Tomakethatpossiblethecabinwaschangedtoacylindrical圆柱体shapetosupportthepressureinside.Butatfirstplanebuildersleftinthestandardsquarewindowsandthisexpansionmeantdisaster.ThedeHavillandCometcameintofashioninthe1950s.Withaclosedcabinitwasabletogohigherandfasterthanotheraircraft. Howeverwherethere'sacornerthere'saweakspot.Windowshavingfourcornershavefourpotentialweakspotsmakingthemlikelytocrashunderstress﹣suchasairpressure.Bycurvingthewindowthestressthatwouldeventuallybreakthewindowcornerisdistributedandthechanceofitbreakingisreduced.Roundedshapesarealsostrongerandresistdeformation变形andcanthussurvivetheextremedifferencesinpressurebetweentheinsideandoutsideoftheaircraft. Fortunatelydesignersfiguredoutthelackofdesignprettyquick.Nowwehaveniceroundedairplanewindowsthatcanresistthepressureoftravelingaltitude.Itgivesbeingabletogazeoutofyourwindowtotheworldfrom35000feetawholenewoutlookdoesn'tit? 1Whydidairlinesaimtoflyathigheraltitudes? A.Toincreasesafetyoftheplane. B.Tohelptheplanetotakeoff. C.Tosavemoneyforlessdrag. D.Tocarrymorepassengersandgofaster. 2WhatdoestheunderlinedwordsdeHavillandCometinParagraph2referto? A.Aplanet. B.Aband. C.Anaircraft. D.Adesign. 3Whichistheadvantageoftheroundedwindow? A.Itreducesthepossibilityofbreakingup. B.Itweakensthestrengthofairpressure. C.Itincreasestheairpressure. D.Ithelpstosurvivetheextremeweather. 4Wheredoesthistextcomefrom? A.Anewspaperonsafedriving. B.Amagazineonfashiondesign. C.Awebsiteonsurvivalskills. D.Asciencebookonflying.
TouristGuideToTheNationalGallery OpeninghoursDaily10am﹣6pmFriday10amn﹣9pm Closed.24﹣26December Reasonstovisit Withover2300paintingsinthecollectiontherearehundredsofreasonstovisittheGallery Herearesometogetyoustarted.…… ★Getintogreatart.FromLeonardodaVincitoVincentvanGogh.Seepricelessworksofartforfree…… ★GetcreativeBrushupyourskillsandcreateyourowngreatworksofart…… ★Leanaboutart.Discovermoreaboutpaintings. ★Beinspired.LifedeathpassionbeautyEverypaintingtellsastory. ★Relax.Escapefromthenoisycityintoapainting. Regulations ★Talkinalowvoicewhenyouuseyourcellphoneinthegallery. ★Nottouchingthepaintingsorotherexhibits.Nottakingpetsinorcrossingthebarriers. ★Consumingfoodanddrinkindesignatedareasonlyi.e.notinroomsthatcontainpaintings ★Followingour‘no﹣smoking'policyinanypartofthebuilding. ★Followingour‘no﹣photography'policyinexhibitionswhereasignisdisplayed Access TheNationalGalleryaimstomakeaccesstothepaintingsenjoyableandwelcomingtothewidestpossiblepublic.Therearearangeoffacilitiestohelpyouseethecollectionvisitexhibitionsandcometoevents TheGalleryoffersBritishSignLanguage﹣interpretedAsonpaintingsforvisitorswhoareleafandspecialartsessions展期forvisitorswhocan'tsee. AddressTheNationalGalleryTrafalgarSquareLondonWC2NSDN. Gettinghere ★Bytube TheneareststationsareCharingCrossNationalRailNorthernandBakerloolinesandLeicesterSquareNorthernandPiccadillylines ★Bybus Routes36911131523248791139and176stopatTrafalgarSquare. ★Bybike ThenearestbikestandsareonOrangeStreetStMartin'sStreetStMartinsPlaceandDuncannonStreet Clickheretofindmoreinformation. 1WhenistheNationalGalleryclosed? A.Onthanks﹣giving B.AtChristmas C.OnNewYearsDay D.AtEaster 2WhatarevisitorsallowedtodointheNationalGallery? A.Makeacall. B.Takeadogin C.Smokeacigarette. D.Touchthepainting 3Whoarespecialartsessionsintendedfor. A.Youngvisitors. B.Foreignvisitors. C.Disabledvisitors. D.Femalevisitors
Doesmysmilelookbiginthis?Futurefitting﹣roommirrorsinclothingstorescouldsubtlyadjustyourreflectiontomakeyoulookandhencefeel﹣﹣happierencouragingyoutolikewhatyousee. That'stheideabehindtheEmotionEvokingSystemdevelopedbyShigeoYoshidaandcolleaguesattheUniversityofTokyoinJapan.Thesystemcanmanipulateorinotherwordscontrolyouremotionsandpersonalpreferencesbypresentingyouwithanimageofyourownsmilingorfrowningface. Theprinciplethatphysiologicalchangescandriveemotionalonesthatlaughtercomesbeforehappinessratherthantheotherwayaround﹣isawell﹣establishedidea. Theresearcherswantedtoseeifthisideacouldbeusedtobuildacomputersystemthatmanipulateshowyoufeel.Thesystemworksbypresentingtheuserwithaweb﹣cameraimageofhisorherfaceasiftheywerelookinginamirror.Theimageisthensubtlyalteredwith﹣softwareturningthecornersofthemouthupordownandchangingtheareaaroundtheeyessothatthepersonappearstosmileorfrown. Withouttellingthemtheaimofthestudytheteamrecruited招募21volunteersandaskedthemtositinfrontofthescreenwhileperforminganunrelatedtask.Whenthetaskwascompletedtheparticipantsratedhowtheyfelt.Whenthefacesonscreenappearedtosmilepeoplereportedthattheyfelthappier.Ontheotherhandwhentheimagewasgivenasadexpressiontheyreportedfeelinglesshappy. Yoshidaandhiscolleaguestestedwhethermanipulatingthevolunteersemotionalstatewouldinfluencetheirpreferences.Eachpersonwasgivenascarftowearandagainpresentedwiththealteredwebcamimage.Thevolunteersthatsawthemselvessmilingwhilewearingthescarfweremorelikelytoreportthattheylikeditandthosethatsawthemselvesnotsmilingwerelesslikely. Thesystemcouldbeusedtomanipulateconsumers'impressionsofproductssaytheresearchers.Forexamplemirrorsinclothing﹣storefittingroomscouldbereplacedwithscreensshowingalteredreflections.Theyalsosuggestpeoplemaybemorelikelytofindclothesattractiveiftheyseethemselveslookinghappywhiletryingthemon. It'scertainlyaninterestingareasaysChrisCreedattheUniversityofBirminghamUK.Buthenotesthatusingsuchtechnologyinashopwouldbeharderthaninthelabbecausepeoplewilluseawiderangeofexpressions.Attemptingtomakeslightdifferencestotheseandensuringthatthereflectedimagelooksbelievablewouldbemuchmorechallenginghesays. Ofcoursetherearealsoimportantmoralquestionssurroundingsuchsubtlymanipulativetechnology.Youcouldarguethatifitmakespeoplehappywhatharmisitdoing?saysCreed.ButIcanimaginethatmanypeoplemayfeelmanipulateduncomfortableandcheatediftheyfoundout. 1What'sthemainpurposeoftheEmotionEvokingSystem? A.Toseewhetherone'sfacialexpressionscanbealtered. B.Toreplacethemirrorsinfutureclothing﹣storefittingrooms. C.Toseewhetherlaughtercomesbeforehappiness. D.Toseewhetherone'sfeelingcanbeunconsciouslyaffected. 2Whatcanwelearnabouttheweb﹣cameraimageinthestudy? A.Itrecordedthevolunteers'performanceinthetask. B.Itattemptedtomakethevolunteersfeelhappier. C.Itgavethevolunteersafalseimage. D.Itbeautifiedthevolunteersappearanceinthemirror. 3WhatdoesCreedmentionasalimitationofthetechnology? A.Itonlydealswithalimitednumberoffacialexpressions. B.Itonlyworksinclothingstores. C.Itonlymakessubtlechangestopeople'sexpressions. D.Itonlychangestheareasaroundthemouthandtheeyes. 4WhatdoesCreedscommentonthemoralissueswiththistechnologyimply? A.Peopleshouldmaketheirdecisionsindependently. B.Technologyisunabletomanipulatepeople. C.Nothingismoreimportantthanhappiness. D.Peopleshouldneglecttheharmofthetechnology.
Haveyoueverspentanafternooninthebackyardmaybegrillingorenjoyingabasketballgamewhensuddenlyyounoticethateverythinggoesquiet?Thereisanoldphrasecalmbeforethestormoftenusedinasituation﹣aquietperiodjustbeforeagreatactivityorexcitement.Accordingtoourownexperienceweknowthereisactuallycalmbeforethestorm.Butwhatcausesthiscalm?Andisitalwayscalmbeforethestorm?Let'shearwhatscientistshavetosay. Aperiodofcalmhappensinaparticularkindofstormthesimplestkindofstorm﹣asingle﹣cellthunderstorm.Inthistypeofthunderstormthereisusuallyonlyonemainupdraftwhichiswarmdampairanddrawnfromplacesneartheground.Stormsneedwarmanddampairasfuelsotheytypicallydrawthatairinfromsurroundingenvironment.Stormscandrawintheairthatfittheirneedfromalldirections﹣evenfromthedirectioninwhichthestormistraveling. Asthewarmdampairispulledintoastormsystemitleavesalow﹣pressurevacuum真空comingafter.Therisingairmeetsthecolddryairthathasalreadyexistedinthestormcloudsthusthetemperatureofthewarmdampairdropsandthewatervapour水蒸汽initchangesintotinydropsthatareapreconditionofrain.Thesedropsaccumulateandbuildonlargerparticleslikedustuntiltheygrowlargeenoughtoformraindrops. Thiswarmdampairkeepsmovingupwardsbutitbecomescooleranddrierduringitstripthroughcloud.Whenitreachesthetopofthecloudtheairgetsspitout被挤出atthetop.Thisairissentrollingoutoverthebigthunderclouds.Fromtheretheairgoesdown.Warmanddryairisrelativelystableandonceitcoversaregionthatairinturncausesthecalmbeforeastorm. Mostthunderstormsthoughdon'tstartwithcalm.That'sbecausemostareactuallygroupsofstormswithcomplexwindpatterns.There'ssomuchairmovingupanddownstormgroupsthatthecalmbeforethestormneverhappens.Insteadbeforethestormitmightbereallywindy! 1Whichbestfitsthedescriptionofaparticularkindofstorm? A.Athunderstormwithasingleshape. B.Athunderstormwithoutstrongwinds. C.Astormwithairdrawnfromeverydirection. D.Astormfueledbymovingairfromtheground. 2WhatdoestheunderlinedworditinParagraph3referto? A.Coldanddryair. B.Warmanddryair. C.Coldanddampair. D.Warmanddampair. 3Whichdoesthewritermostlikelyagreeto? A.Presenceofthecalmreliesonstableair. B.Notallthunderstormsstartwiththecalm. C.Thedriertheairisthebiggerthestormwillbe. D.Stormhappenswithoutairmovingupanddown. 4Whatisthepassagemainlyabout? A.Causesandeffectsofaheavystorm. B.Abriefdescriptionofapeacefulstorm. C.Apersonalexperienceofaheavystorm. D.Anexplanationofthecalmbeforeastorm.
假定你是李华你的英国朋友Josh来信询问你的暑假实践活动安排.请回邮件告知你的打算.内容包括 1.看望老人学做家务 2.学打羽毛球 3.参加社区文艺演出. 注意 1.词数100左右 2.可以适当增加细节以使行文连贯.
8分Someoftheworld'sbiggestcompanies﹣AppleAmazonFacebook﹣didn'texist30yearsago.Sowhatfirmsareweworkingforin2050?That'saquestionputforwardbyhistorianYuvalNoahHarariinhisnewbook'21Lessonsforthe21stCentury'.Hearguesthatbecausetechnologyischangingsofastit'soneofthefirsttimesinhumanhistorywhenwedon'tknowwhatjobswilllooklikeinthecomingthreedecades.'SothebestbetistofocusonemotionalintelligenceEQ'hesaid.'Informationisthelastthingthekidsneed.Theyhavetoomuchofit.'Inthisbookhefocusesonthevariouschallengesfacingustoday.Ashewritesinthebook'sintroduction'Whataretoday'sgreatestchallenges?Whatshouldwepayattentionto?Whatshouldweteachourkids?'OneareawherethesequestionscropupisartificialintelligenceAI.HararibelievesthatAIwillcompletelyaffectthejobmarketforthenextgenerationofworkers.Hisfirsttwobooks﹣'Sapiens'and'HomoDeus'﹣becameinternationalbestsellerssellingmorethan12millioncopiesworldwide.TheywerepraisedbythelikesofMarkZuckerbergBarackObamaandBillGates.Harari'sbooksaboutthepastandfutureofhumanityattractagreatnumberoffans.FellowIsraeliactressNataliePortmanisafan.SoisAmericanR&BstarJanelleMonae.AsforBillGateshemightbeHarari'sbiggestfan.SowhentheNewYorkTimesaskedhimtoreviewHarari'slatestbookshejumpedattheopportunity.'AllthethreebookswrestlewithsomeversionofthesamequestionWhatwillgiveourlivesmeaninginthedecadesandcenturiesahead?'Gateswroteinhisreview.'Sofarhumanhistoryhasbeendrivenbyadesiretolivelongerhealthierhappierlives.Ifscienceiseventuallyabletogivethatdreamtomostpeopleandlargenumbersofpeoplenolongerneedtoworkwhatreasonwillwehavetogetupinthemorning?'1WhatisthebestwaytohelpstudentsfacetheuncertainfutureaccordingtoHarari?A.Teachingthemadvancedtechnology.B.Providingthemwithmoreinformation.C.Improvingtheiremotionalintelligence.D.Remindingthemoffiercecompetitions.2WhatdoesHararistressinhisnewbook?A.Thebrightfutureofthefutureworkers.B.Differentchallengesinfaceofpeople.C.Lessonshumansshouldlearnfromhistory.D.Thedisadvantagesofartificialintelligence.3WhatcanwelearnaboutHarari?A.HeisBillGates'goodfriend.B.HehasadeepunderstandingofAI.C.Heishighlythoughtofbyeveryone.D.Hisbooksarewellreceivedintheworld.4WhatistalkedaboutinallofHarari'sthreebooks?A.Thedesiretoenjoylife.B.Thelimitlessopportunitiesinthefuture.C.Thedrivingforceofhumanhistory.D.Thesourceoflifemeaninginthefuture.
Newsanchors主播musthavebeenreluctanttoreadoutthefollowingnewsXinXiaomengbeganworkingastheworld'sfirstfemaleartificial人工的intelligencenewsanchoratXinhuaNewsAgencyonSundaythreemonthsafteramalerobotjoinedtheprofession. UnlikepreviousnewsrobotsthoughXindoesnotreadnewslikeacoldmachineshereadsitalmostlikeahumanbeing.Themusclesonherfacestretchandrelax﹣andherreactionschange﹣asshecontinuesreading.That'swhymanynewsanchorswereworriedWillAIreplaceusinthenearfuture? TofindtheanswerwehavetoanalysethetechnologiesthatsupportXinatherjob.ThreekeytechnologiesareusedtosupportXin.Firstsamplesofhumanvoicesarecollectedandsynthesised合成.Thisisfollowedbythecollectionandsynthesisofhumanmusclemovementsamples.AndthirdthevoicesandmovementsaremarriedinawaythatwhentheAlnewsanchorreadsthemicro﹣electricmotorsbehindherfacemovetomakeherexpressionsseemmorehuman. Yetweneedathoroughknowledgeofdeepleaningtechnologytomakearobotimitateaperson'svoice.ThedeveloperneedstocollecttensofthousandsofpiecesofpronunciationsinputthemIntothemachineandmatchthemwiththetextortheAltoleanandread.Theprocessforimitatingfacialmovementsissimilar.Thedeveloperhastoanalysethemovementsofthe53musclesinthehumanfacemakeamodelsetfromthecollecteddatafortheAInewsanchortoleanandimitatethemovementsoffacialmusclesviaprograms. BoththetechnologiesusedtomakeXin'sperformanceimpressivearemature.Therealdifficultyliesinthethird﹣thetechnologytomatchthepronunciationswithfacialmovementssothatXinexpressionsvaryaccordingtothecontentofthenewsreport.InfactXinsexpressionsdon'talwayschangeaccordingtothecontent.Asaresultherexpressionslookanythingbuthuman.Actually.AIisstillnomatchforhumanqualities. 1Whatdoestheunderlinedwordreluctantinthefirstparagraphmean? A.Delighted. B.Unwilling. C.Confused. D.Optimistic. 2Whatcanweinferaboutpreviousnewsrobots? A.Theyreadnewswithoutexpressions. B.Theylookedlikeahumanbeing. C.Theycouldinterviewsportsstars. D.Theycouldinteractwithaudience. 3Whatdoweknowaboutthethirdtechnology? A.Thistechnologyisveryperfectsofar. B.Thistechnologyisquitepopularnow. C.Thistechnologyremainsatthetheoreticalstage D.Thistechnologyisfarfrommature. 4Fromthelastparagraphwecandrawaconclusionthat. A.humannewsanchorsshouldlearnfromATanchorstosavetheirjobs. B.Alanchorsperformmuchbetterthanhumannewsanchorsatpresent. C.Alnewsanchorswon'treplacehumannewsanchorsinthenearfuture. D.XinXiaomengsexpressionsvarysonaturallythattheyaretruetolife.
中国汉字博大精深它有着多种造字方法以及丰富的寓意.请你写一封英语书信向你的笔友Mark介绍你最喜欢的一个汉字聊聊它的构成合义以及你最喜欢它的原因. 注意1.词数100左右2.开头和结尾已给出不计人总词数. DearMark Howareyouthesedays?﹣﹣﹣﹣ Bestwishes! Yourssincerely LiHua
岳阳市整治农村“空心房”新模式获评全国改革开放40年地方改革创新40案例．据了解我市某地区对辖区内“空心房”进行整治腾退土地1200亩用于复耕和改造其中复耕土地面积比改造土地面积多600亩． 1求复耕土地和改造土地面积各为多少亩 2该地区对需改造的土地进行合理规划因地制宜建设若干花卉园和休闲小广场要求休闲小广场总面积不超过花卉园总面积的求休闲小广场总面积最多为多少亩
Inmymemorywintersalwaysusedtobereallyunpleasant.Youhadtobundleupjusttokeepwarmwhenyouwentoutside.Youwereoftencoldwetslipontheiceandyou'darrivehometoanice﹣coldhouse.Andthatwouldmeanturningontheheatingandwaiting.It'samiracleyoudidn'tgetcoldtothebone. Fortunatelythingsdon'thavetobesochallenginganymore.Technologyengineringanddesignhaveadvancedgivingusnewsolutionstooldproblems.Itmeansdealingwithwinterneedn'tbelikeskatingonthinice. Withasmartthermostat温度自动调节器ourhomescanbewarmwhenweneedthemtobe.Manymodelsfeaturesmartphoneappsthatallowyoutocontroltemperatureremotelysowecanwarmupthehousebeforewearrivehome.Accordingtotechradar.comTado'smodelfeaturesvoicecontrolwhiletheNest‘leans'yourhabitsandautomaticallyheatsthehomeforyou. Clotheshavebeengivenanupgradetoo.Electronicthermaljacketssweatersandcoatsheatupwhenyouturnthemon.Whatbetterwaytokeepwarminthedeadofwinter?Atthetouchofabuttonorthroughanapponourphonestheclothinggeneratesheatfromelementsplacedinside.Manymodelsofferthreelevelsofheatingwhichstaywarmforover12hours. FinallythereistheclothingfortheheadbeaniesandEarmuffthatfeaturespeakersincludedinthefabricusingBluetoothtechnologysowecanlistentoourfavouritemusicorinsomecaseshaveaphonecallusingthein﹣builtmicrophone.Allwhilekeepingtheheadwarmandavoidingacold. Formanythethoughtofwinterusedtobeenoughtomaketheirbloodruncold.Butusingtechnologylifeneedn'tfreezeup.Withtherightsolutionsthere'snoreasonwhywintercan'tbereallyreallycool. 1WhatdotheunderlinedwordsbundleupmeaninPara.1? A.Fixanairconditioner. B.Takeahotbath. C.Runalot. D.Putonmoreclothes. 2Howdoeselectronicthermalclothingwork? A.Theequipmentplacedinsidetheclothingproducesheat. B.Itneedstobewarnedupbeforebeingused. C.Thethermostatheatupautomaticallywhenthetemperatureislow. D.Itkeepswarmforover12hoursafterbeingchargedfoxanhour. 3FromthepassagewecanleanthefollowingstatementsEXCEPTthat. A.Tado'smodelcanbecontrolledbysayingsomethingtoit. B.withthein﹣builtspeakerandmicrophoneBeaniesandEarmuffsuserscanhaveaphonecall. C.technologycandonothingtomakewinterlessrough. D.Bluetoothtechnologyisusedintheclothingforthehead. 4What'sthebesttitleofthispassage? A.ASmartThermostat B.AModernwinter C.Waysofkeepingwarm D.Anunpleasantwinter
如图1△AOB的三个顶点AOB分别落在抛物线F1y＝x2+x的图象上点A的横坐标为﹣4点B的纵坐标为﹣2．点A在点B的左侧 1求点AB的坐标 2将△AOB绕点O逆时针旋转90°得到△A'OB'抛物线F2y＝ax2+bx+4经过A'B'两点已知点M为抛物线F2的对称轴上一定点且点A'恰好在以OM为直径的圆上连接OMA'M求△OA'M的面积 3如图2延长OB'交抛物线F2于点C连接A'C在坐标轴上是否存在点D使得以AOD为顶点的三角形与△OA'C相似．若存在请求出点D的坐标若不存在请说明理由．
Ourteacherstriedteachingusaboutdeathduringnursingtraining.AsastudentnurseIknewIwouldseedeathinmy1.Ihadnoideaofthe2itwouldhaveonme3. ThefirstpersonIsawdiewasanelderlymanJohnwhohadbeen4forweeks.Hisheartwas5andthehealth﹣careteamwaskeepinghimcomfortableand6hissymptoms.Hehadstoppedspeakingdaysbeforebutwasstillawakeattimesandhis7whenwespoketohimwasbeautiful. WhenIcameontothe8onemorningthenightstaffsaidhehaddeteriorated恶化overnightandhad9lefttoleave.AtrainednurseandIgavehimabedbathshavedhimandchangedhissheets.ForthenextsixhoursI10hishandandtalkedtohim.Thedoctorcameinregularlyandaskedifheneededmorepainreliefbutheseemed11mostofthetime.Heonly12openedhiseyestosmileatme.Earlyintheafternoonthenursecamebackinandwewashedhisfaceand13hishair.AsshewasjustabouttoleavetheroomshestrokedhishairandsaidOhJohnjust14.Minuteslaterhedid. Ithasbeen20yearssinceJohn'sdeath.Ihaveseen15deathsinmytimenursing.Ihaveseenstaffgofarbeyondthe16oftheirjobsto17thatapatienthasasgoodadeathaspossible.Iremembersomeoftheotherfacesbutnoneisquiteas18asJohn's.Heandtheprofessionalswhowere19himtaughtmethatit20howwetreatthosewhoaredying. 1A.life B.career C.mind D.family 2A.impact B.difference C.reflection D.affection 3A.instead B.regardless C.therefore D.however 4A.insisting B.challenging C.struggling D.recovering 5A.striking B.failing C.beating D.aging 6A.comforting B.decreasing C.disappearing D.relieving 7A.face B.eyes C.smile D.expression 8A.ward B.classroom C.hospital D.department 9A.days B.hours C.minutes D.seconds 10A.held B.reached C.hugged D.touched 11A.silent B.painful C.peaceful D.anxious 12A.frequently B.occasionally C.hardly D.easily 13A.combed B.tied C.washed D.smelt 14A.comeon B.passaway C.letgo D.goaway 15A.priceless B.constant C.considerate D.countless 16A.qualifications B.ability C.expectations D.exception 17A.pretend B.assume C.believe D.ensure 18A.beautiful B.vivid C.pale D.scary 19A.caringfor B.lookingfor C.bringingup D.cheeringup 20A.trains B.works C.influences D.matters
TheworldfamousBostonSymphonyOrchestranormallyperformsatSymphonyHallinBostonMassachusetts.ButitssummerhomeistheTanglewoodMusicCenterinwesternMassachusetts. TheBostonSymphonyOrchestraalsohasasummerprogramatTanglewood.Itisdesignedforyoungsingersmusiciansandthosewhocreatemusicalworks.GreatcomposerslikeAaronCoplandLeonardBernsteinandJohnAdamshaveworkedThere. SergeKoussevitzkyledtheBostonSymphonyOrchestrain1940.AtthetimeEuropewasatwar.TheUnitedStatesdidnotenterWorldWarIuntiltheendof1941.Mr.KoussevitzkypersuadedpeopleinthemusicindustrytoopenamusicschoolatTanglewoodtheBSO'ssummerhome.Hewantedyounggiftedmusicianstoattendtheschoolforfree. Butwithintwoyearstheprogramalmostcametoanend.TheBSOtrustees托管人wantedtoclosetheschoolbecauseofthewarandKoussevitzkywasangryandwrotealettercallingitan‘actofartisticvandalism损坏'.Andhesaid‘Nowisthetimewhentheworldneedstobehearingthismusic'saysJeremyEichleramusiccriticforTheBostonGlobenewspaper.ThismusicwasnotJustworksbyBeethovenorBrahms.Itwasthesoundsofthetime. Mr.KoussevitzkychosecomposerAaronCoplandtoheadtheschool.InestablishingAaronCoplandastheheadoftheschool﹣﹣notastheheadofcompositionhewasmakingaveryspecificstatement…AndIthinkhefeltverystronglythatpayingattentiontothemusicofone'sowntimeisthewaytoensurethattherewillbeafuturesaysJeremyEichler. PaulHindemithwasarefugee难民fromthewarinEurope.HewaschosenasthefirstheadofTanglewood'smusiccompositiondepartment.HeandCoplanddecidedthattheschoolwouldbeaplacewherecomposerswritenewmusicalworks. TheirfirstperformancewasAlleluiaapiecewrittenbyAmericancomposerRandallThompson.Alleluiahasopenedtheschool'sprogrameverysummersinceitwasfirstperformed.SinceitopenedTanglewood'syoungmusicianssingersandconductorshaveperformedmanynewcompositions.TheyincludethefirstAmericanperformanceofBenjaminBritten'soperaPeterGrimes.Thisyearforits75thanniversarythecenteraskscomposerstowrite34newpiecesofmusic. 1WhathappenedtotheTanglewoodMusicCenter? A.AaronCoplandonceworkedastheheadoftheschool. B.Manyyounggiftedmusiciansattendedtheschoolin1941. C.Itwasclosedin1943becauseoftheWorldWarII. D.ItwascreatedbySergeKoussevitzkyin1940. 2WhichofthefollowingisinagreementwithSergeKoussevitzky'sopinions? A.Thegreatmusicshouldbethereflectionofthetime. B.Theyoungshouldhavethechancetolearnmusicforfree. C.Theheadofamusicschoolshouldbeacomposer. D.Thetraditionalmusicshouldnotbeemphasized. 3ItcanbereferredthattheTanglewoodMusicCenterattachesimportanceto. A.performingnewworkseveryyear B.thecompositionsoffamousmusicians C.workingwithfamouscomposers D.theyoungtalentedmusicianscreation. 4What'sthepassagemainlyabout? A.ThegreatchangestakingplaceintheTanglewoodMusicCenter. B.AbriefintroductiontotheTanglewoodMusicCenter. C.ThedevelopmentoftheTanglewoodMusicCenter. D.TheeventsthatmaketheTanglewoodMusicCenterfamous.
10分ColdweatherisgoodforyouWithwinterapproachingpeoplebegintocomplainaboutcoldweather.1There'splentytoloveaboutcoldweather.Andthere'splentyofevidencethatcoolertemperaturescanbepartofahealthylife.Firstcoolertemperaturescanhelpyouloseweight.Itcanalsohelpyousleepbetter.Youmightfeeluncomfortableatfirstifyoucoolyourbedroomdown.Butifyouforexampleswitchyourbedroomtemperaturefrom72downto62degreesgraduallyoverafewweeksyourbodywilladjust.2Ihavelongkeptmywinterhousetemperatureat62degrees.HowdidIfindthatnumber7WellIexperimentedonmyselfabouteightyearsago.3Istartedat66andturneditdownonedegreeeveryfewdaysuntil60.Ifoundwhenthetemperaturewascolderthan62Icouldn'tfocus.But62wasperfect.Anotherbenefitformewasthatitalsokeptmeclear﹣headedwhileworkingathome.Interestinglysciencealsosays62degreesisthemagicnumberforbrainwork.4Itsaid62degreeswasthetemperatureatwhichtheschoolboysubjectsofthestudyfunctionedperfect.Andwhilewe'respeakingofworkandschoolotherresearchshowsthatpeoplestudybetterwhentheweatheroutsideis'bad'.5ButaccordingtoaHarvardHealthLetterfrom2010propercoldtemperaturescouldbegoodforskinbecauseittrainsbloodvesselsintheskintoberesponsive.Sorosycheeks!There'snoreasontobeafraidofwinterweather.Hugitandyoutoocanenjoytheseason.A.Irecentlyreada1972study.B.Andyou'llsavemoneyonenergycostsaswell.C.Manypeopleliketousecoldwatertowashtheirface.D.AtthattimeIworkedathomeandlikedwarmtemperature.E.Mostofusthinkcoldweatherleadstodryskinandwrinkling.F.ThereasonwasthatIhatedspendingmoneyonheatingbills.G.Butifyou'reactiveandhealthyitdoesn'thavetobeanegativething.
KangSung﹣ilbuysSanchohisPomeranianatoyeverybusinesstripandthislunarNewYearholidaywilldresshimupinsnew﹩50suittovisit‘grandma'Kang'smother.Kangandhiswifesaychildrenaretooexpensiveandbringtoomuchpressure.InsteadtheyhavechosentoshowerSanchowithloveandgifts. Theyarenotalone.SouthKorea'spetindustryisboomingfuelledbythesamefactorsthathavemadethecountry'sbirthrateat1.05birthsperwomanthelowestintheworldthehighcostofeducationandhousingaswellasextremelylongworkingdays. SocialpressuresinSouthKoreaaresuchthatparentsarerequiredtoproviderresourcesfordecadesfromprivateschoolingtoartclassessaidKanga39yearoldmanagerofapetfuneralhome. Ontopofeducationexpensesanaverageanhouseholdmustbudgetroughly12.8yearsofincometobuyamid﹣rangehomecomparedto8.8yearsin2014datafromKBKookminBankshows.AddingtotheirstresssouthKoreansworkthethirdmosthoursperyearamongOECD经合组织nationsnextonlytoMexicoandcostaRica. Pet﹣owninghouseholdshaveroseto28percentofallSouthKoreanhouseholdsin2018comparedwith18percentin2012governmentdatashows. Thatinturnhasresultedinaprosperouspetcareindustrywhoseofferingsincludetailoredpetdietsandhigh﹣pricedphotoshoots.Pet﹣relatedstartupsarealsopopularwithventurecapitalists.ThesouthKoreanpet﹣relatedindustrywasworth2.7trillionwon﹩2.4billionlastyearandthatcouldmorethandoubleinsizeby2027accordingtotheKoreanRuralEconomicInstitute. 1WhatdotheunderlinedwordshisPomeranianinparagraphIreferto? A.Hisson. B.Hispet. C.Atoy. D.Sancho'sbrother. 2WhatmayNOTbetheresultofexpensiveeducationandhousesalongwithlongworkinghours? A.ThebirthrateinSouthKoreanisthelowestintheworld. B.28percentoftheSouthKoreanfamiliesraisedpetsin2018. C.Therearemorepet﹣relatedbusinessesthanbefore. D.Parentssendtheirchildrentoprivateschools. 3Whichofthefollowingmaybetheserviceofferedinapet﹣relatedindustry? A.Trainingthepettobeatailor. B.Showeringthepetwithgifts. C.Takingpicturesforcustomers'pets. D.Shootingthepetwithafalsegun. 4Accordingtothepassagemanypeoplethinkthatgivingbirthtoababy. A.Coststoomuch B.Isamust C.Isboring D.Bringshappiness
IunderstoodChineseculturesonlyseenonTVandinbooksbutonlymadelittleheadwaylearningChinese.1itdidnotmatter.Thepatiencegenerosityand2ofstrangersleftmepleasantlysurprisedwithBeijing. I3neededChineseOnmybirthdayforexampleIwas4inthecity. EveryoneIknewwasoutoftownsoIdecidedto5adayofitmyself.Iwentshopping.AfterthreehappyhoursIwentconfidentlyuptothe6andforaminuteI7everyonespokeEnglish. Butafter8myitemsthewomanbehindthecounterspokeinChineseandallIcoulddowasstare9.IthoughtshewasaskingcashorcardsoIpulledoutsomenotesbutshe10herhead.Westoodthereforafewminutes11anothercashiersaidAcoupleofyour12arepartofthesaleandcannotbeexchangedor13oncebought. AnotherdayIwenttothepolicestationasIhadlostmywalletina14landDuringthat20﹣minutetalkIrealizedtheeagernessand15ofpeople. SpeakinginamixofChineseandEnglishtheyoungpoliceofficerdidallhecouldtoputme16.Heknewthatasforeignerswewerenervousatthepolicestationsohesmiledandspoke.Intheendthe17tookacoupleofhoursandthewalletdidnot18anymore.Ihadmadeafriend. Therearemany19andunforgettablememoriesofgettingbywithout20butperhapswithoutthefriendshelpBeijingmaynothavebeensoeasytonavigate. 1A.Lastly B.However C.Instead D.Thus 2A.sacrifice B.Efforts C.Warmth D.promise 3A.rarely B.Basically C.completely D.totally 4Astill B.even C.only D.alone 5A.make B.need C.do D.plan 6A.exit B.store C.counter D.hall 7A.realized B.recognized C.guaranteed D.assumed 8Aringingup B.showingup C.assessing D.examining 9A.poorly B.helplessly C.quickly D.patiently 10A.waved B.nodded C.shook D.hung 11A.until B.as C.after D.for 12A.expenses B.purchases C.supplies D.parcels 13A.accepted B.canceled C.returned D.broken 14A.foreign B.same C.different D.new 15A.happiness B.wisdom C.excitement D.kindness 16A.forsure B.atease C.inorder D.inplace 17A.incident B.procedure C.question D.survey 18A.matter B.stay C.change D.return 19A.interesting B.amusing C.pleasant D.admiring 20A.cellphone B.policeofficers C.Chinese D.cashiers
慈氏塔位于岳阳市城西洞庭湖边是湖南省保存最好的古塔建筑之一．如图小亮的目高CD为1.7米他站在D处测得塔顶的仰角∠ACG为45°小琴的目高EF为1.5米她站在距离塔底中心B点a米远的F处测得塔顶的仰角∠AEH为62.3°．点DBF在同一水平线上参考数据sin62.3°≈0.89cos62.3°≈0.46tan62.3°≈1.9 1求小亮与塔底中心的距离BD用含a的式子表示 2若小亮与小琴相距52米求慈氏塔的高度AB．
Whilesmartphonesstandaccusedofavarietyofcrimesthesepocketcomputerscancertainlybeaforceforgood.Yourphoneisalwayswithyoumakingittheperfectdevicetopushyouintoamorebeneficialwayofliving.Herearesomeofthebestappsthatcanhelp. Habitica Habiticaturnsthegoalofforminggoodhabitsintoagamewithitsowncharactersandscoring.It'salotoffunandtheappalsoletsyoubuildhabitswithfriendsandfamily.Inadditiontoregularrepeatinghabitsyoucanaddamoregeneralto﹣dolistandtherewardsyougetcanbecustomizedtoo﹣youcouldtreatyourselftoamealoutoranextrahourofgames. SmokeFree Ifyou'vegotaspecifichabitinmindthenyou'llusuallyfindspecificappstohelplikeSmokeFree.Ifyou'redeterminedtogiveupsmokingthenthisisoneofthemostcomprehensiveappsforgivingyouthatextrapushyouneedtomakeapermanentchange.Theappoffersahostofusefulfeaturesforpeoplewantingtogosmoke﹣freeTheabilitytoseeyourprogressovertimechartsshowinghowyourhealthisimprovingday﹣by﹣dayencouragementandsomeadviceontechniquesforgivingupsmoking. MyFitnessPal YoucanfindatonofhealthandfitnessappsforyourphonebutMyFitnessPalstandsoutnotjustbecauseitiseasytousebutbecauseitmakespracticalsuggestionsforyou.Itcantakeinahostofdatafromthecalories卡路里you'retakingintothenumberofswimsyou'redoingperweekandofferreportsoncalorieconsumptionandmacronutrient大量营养素breakdown. 1WhatcanHabiticahelpyoutodo? A.Winatoughgame. B.Startalastingfriendship. C.Findafancyrestaurant. D.Developapleasanthabit. 2WhichofthefollowingcanSmokeFreeprovide? A.Thefreedomtosmoke. B.Theabilitytomakeprogress. C.Adviceonhowtoquitsmoking. D.Chartsaboutyourexcellenthealth. 3Whatcanwelearnaboutthethreeappsmentionedinthetext? A.They'recheap. B.They'repractical. C.They'refree. D.They'reinteresting.
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限一词 2.只允许修改10处多者从11处起不计分. Achemicalfactoryliesnearmyhome.Themanagerofthefactorywascriticizedbythegovernmentbecausethefactorygivesoutlotsofharmfulsmokeoneverydaybuthepaidnoattention.ThenthefactorywasforcedtostopproductionandthemanagersaidangryIsthereanyevidencestoshowthatwedidharmtopeople'shealth?Infactwedid't.Justthendoctorcamewiththeresultofthemedicalexamsaythemanagerwassufferingfromlungcancer.Thatisveryclearthatthepollutionhasharmednotonlythepeoplearoundthefactoryandalsothemanagerhimself.Themanagerregrettedhavingcausedsomanypollution.Nowhehasrealizedwhatimportantitistokeeptheairclean.
如图AB为⊙O的直径点P为AB延长线上的一点过点P作⊙O的切线PE切点为M过AB两点分别作PE的垂线ACBD垂足分别为CD连接AM则下列结论正确的是．写出所有正确结论的序号 ①AM平分∠CAB ②AM2＝AC•AB ③若AB＝4∠APE＝30°则的长为 ④若AC＝3BD＝1则有CM＝DM＝．
如图在菱形ABCD中点EF分别为ADCD边上的点DE＝DF求证∠1＝∠2．
ForseveralmonthsCarahasbeenworkingupthecouragetoapproachhermomaboutwhatshesawonInstagram.Notlongagothe11﹣year﹣oldgirllikealltheotherkidsinthisstorydiscoveredthathermomhadbeenpostingherphotosformuchofherlife.I'vewantedtobringit.It'sstrangetoseemyselfupthereandsometimestherearepicturesIdon'tlikeofmyselfshesaid. LikemostothermodernkidsCaragrewupimmersedinsocialmedia.Whilemanykidsmaynotyethaveaccountsthemselvestheirparentsschoolssportsteamsandorganizationshavebeenorganizinganonlinepresenceforthemsincebirth.Theshockofrealizingthatdetailsaboutyourlifehavebeensharedonlinewithoutyourpermissionorknowledgehasbecomeanimportantexperienceinthelivesofmanyteenagers.Recentlyaparentingblogger博主wroteinaWashingtonPostessaythatdespite不顾her14﹣year﹣olddaughter'shorroratdiscoveringthathermotherhadsharedyearsofhighlypersonalstoriesandinformationaboutheronlineshesimplycouldnotstoppostingonherblogandsocialmedia.ThewritersaidthatpromisingherdaughterthatshewouldstoppostingaboutherpubliclyontheInternetwouldmeanshuttingdownavitalpartofmyselfwhichisn'tnecessarilygoodformeorher.averageparentsdothesame.There'sevenaspecialwordforitsharenting. AlmostaquarterofchildrenbegintheirdigitalliveswhenparentsuploadtheirphotostotheInternetaccordingtoastudyconductedbytheInternet﹣securityfirmAVG.Thestudyalsofoundthat92percentofkidsundertheageof2alreadyhavetheirownuniquedigitalidentity. 1HowdoesCarafeelabouthermom'sbehavior? A.It'saggressive. B.It'sappropriate. C.It'sannoying. D.It'sfavorable. 2Whydidtheparentingbloggerpostaboutherdaughteronline? A.Becauseitfilledupherblog. B.Becauseitshowedoffhersuccess. C.Becauseitrecordedherstories. D.Becauseitmeantalottoher. 3Whoarefondofsharenting? A.Aquarterofstudents. B.Mostordinaryparents. C.Kidsundertheageof2. D.Somecrazybloggers. 4Whichofthefollowingcanbethebesttitleforthetext? A.Children'sNewTrouble B.SocialMedia C.Kids'OnlinePeformance D.MommyBloggers
OnJanuary252020overabillionpeopleinChinaandmillionsaroundtheworldwillcelebratetheChineseNewYearortheSpringFestival.Theancienttradition1dateisdeterminedbythelunarcalendarandfallssomewherebetweenJanuary21andFebruary20eachyearisthe2longandmostimportantofallChinesefestivals. Thepreparationswill3officialbeginwithLittleYearonJanuary172019.Itisobservedwithadayofmemorialandprayerceremonies.OtherLittleYearactivitiesincludecleaningthehouse4sweepawaybadluckandhangingspringcouplets﹣﹣reddecorationshunginpairs﹣ondoorwaysforwealth.Sincered1believetokeepmisfortuneandevilspiritsawayitcanbenoticedineverythingfromclothingto6lanternusedtodecoratehouses. Often7considerthemostimportantmealoftheyearthereuniondinnerisbothdeliciousandrootedinChinesetradition.8wholechickensymbolizesfamilytogethernesswhilelonguncutnoodlesshowlongevity长寿•Wealthisrepresentedbydumplingsandspringrolls.Childrenreceiveredenvelopesfilled9moneyandinspiringmessagesfromeldersandareoftenallowedtostayuplatetowatchthe10amazefireworksshows. Thetwo﹣weeklongcelebrationswillendonFebruary8﹣thedayofthefullmoon﹣withtheLanternFestival.
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. LastyearZhangPingyupaidvisittoLondon.WorriedaboutthetimeavailableZhangPingyuhadmadealistofthesiteshewantedtosee.ItwastheTowerwhichshevisitedfirst.Fancy!Thissolidstonesquaretowerhadbeenremainedstandingforonethousandyears.Manynewbuildingshadexpandedaroundit.Thereforeitwasstillpartofaroyalpalaceandprisoncombined.TherefollowedStPaul'sCathedralbuiltaftertheterriblefireofLondonin1666.Itlookedsplendidlywhenfirstbuilt.WestminsterAbbeytoowasveryinteresting.ThenjustashecameoutoftheabbeyPingyuheardthefamoussoundoftheclockBigBenringoutthehour. ThenextdayPingyuwasleavingLondontoWindsorCastle.PerhapsIwillseetheQueen?shewonderedasshefallasleep.
KentuckyFriedChickenhaslaunchedanewthemedbranchinhonorofLeiFengalegendarysoldier1celebrateinChinaforhis2selfandmodestyinhishometownChangshaHunanprovince. TherestaurantopenedonSundaytwodaysbeforethe3officeremembrancedaymarkedacrossthecountryeveryyearonMarch54peoplecelebratehisspiritsbyshowinggoodwillandgiving5helpinghandtoothers. TherestaurantwillorganizeseriesofactivitiesandalsocooperatewiththelocalLeiFenMemorialHallto6wellpromoteLeiFeng'sspirits.7theentrancetotherestaurantstandtwobigLei﹣likestatuesanditsinnerpart8decoratewithLei'scartoonportraitsandquotesfromhisdiarywithwordsfromhispoemsplayinginthebackground. HeMingeneralmanagerofKFCinHunanprovincetoldvoc.com.enthatinadditiontothethemedrestauranttheywillalsolaunchaprojectdevotedtoLei'svirtuesin250outlets门店acrosstheprovinceincluding9providefreedrinkingwaterandresting10placeforgateguards
ItstartedonaFriday1whenthe5﹣year﹣oldandhisolderbrotherwereplaying2theirhomeneartheresorttownofAspenColorado.Hearingthesoundof3themotherracedtoherfrontyardtofinda4sightAmountainlionwasbentoverher5﹣year﹣oldsonbitinghim.Thepoorboywascompletelyunderthecatandwas5togetfree. Sothemother6shechargedtheanimalpulledawayoneofits7suddenlywithalotofforceanddiscoveredherson'swholeheadwasinitsmouth.Shedidn'tbackdown.Themother8thelion'smouthandgotitopen9theboy.Shethenquicklypickedhimupandranaway. Theboy'sfatherhadjustreturnedfromarunwhenthe10occurred.He11intothecarwithhiswifeandsonandcalled911shortlybefore8p.m.Asthey12toahospitalinAspen.Theboysufferedcutstohis13faceandneck.Themother14bitemarksonherhandandscratchesonherleg.AspenvalleyHospitalreportedthatthechildwasnotseriouslyinjuredandin15conditionandhassincebeen16tochildren'sHospitalinDenverforhisrecovery. Themountainlionwasestimatedtobeabout2yearsoldandwasnotfullygrown.Itwasperhapsforcedouttohuntonitsown.Younglionsmaybekeenoneasy17likepetsandsmallchildren.18itwasn'tabigcat.Haditbeena110﹣poundlion﹣whichwasonceseenaroundthere﹣thiswouldhavebeenamuch19story. Themotherwhohadtophysicallyremovethelion'spawsfromherson'sfaceiscreditedwith20hislife.She'sarealhero. 1A.morning B.afternoon C.evening D.noon 2A.inside B.outside C.towards D.under 3A.screams B.laughter C.applause D.cheers 4A.surprising B.magical. C.moving D.terrifying 5A.running B.waiting C.struggling D.walking 6A.sprangintoaction B.burstintotears C.thoughttwice D.pulledout 7A.eyes B.paws C.ears D.teeth 8A.grabbed B.covered C.beat D.kissed 9A.comforting B.scolding C.stopping D.freeing 10A.error B.attack C.headache. D.comedy 11A.crashed B.looked C.jogged D.jumped 12A.sped B.swam C.dived D.got 13A.legs B.feet C.head D.bottom 14A.suffered B.carved C.drew D.removed 15A.terrible B.fair C.bad D.poor 16A.carried B.advised C.sold D.transferred 17A.plants B.toys C.targets D.animals 18A.unluckily B.generally C.eventually D.fortunately 19A.beautiful B.happier C.different D.authentic 20A.wasting B.saving C.ending D.risking
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