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x2-xy+=2
一心投入教育thedeafchildrentheyoungladyhaslittletimetocareforherowndaughter.devote
MrKirkpatrickbelievesthatFacebook'sleadersaresmartenoughtocomeupstrategiesthatwillkeepthecompanygrowingcrazy.
Hometomemeansasenseoffamiliarity熟悉andnostalgia怀旧.It'sfuntocomehome.Itlooksthesame.Itsmellsthesame.You'llrealizewhat'schangedisyou.Homeiswherewecanrememberpainlivesandsomeotherexperiences;Wepartedhere;Myparentsmethere;Iwonthreechampionshipshere. IfIclosemyeyesIcanstillhaveaclearpictureinmindofmyfirsthome.Iwalkinthedoorandseeabrownsofasurroundingalowglass﹣topwoodentable.Totherightofthelivingroomismyfirstbedroom.It'semptybutit'swheremyearliestmemoriesare. ThereisthediningroomtablewhereIcelebratedbirthdaysandwhereIcriedonHalloween﹣﹣﹣﹣whenIdidn'twanttoweartheskirtmymothermadeforme.Ialwayslikedstandingonthattablebecauseitmademefeeltallandstrong.IfIsitatthistableIcanseemyfavoriteroominthehousemyparents'room.Itissimple:abrownwoodendresserlinestherightsideofthewallnexttoatelevisionandacoupleofphotosofmygrandparentsoneachside.Theirbedismysafezone.Icanjumponitanytime﹣wakingupmyparentsifIamscaredorifIhaveanimportantannouncementthatcannotwaituntilthemorning. I'mluckybecauseIknowmyfirsthomestillexists.Itexistsinmymindandheartonaphysicalproperty住宅onWest64thstreetonthewesternedgeofLosAngeles.ItisproofIlivedIgrewandIlearned. SometimeswhenIfeellostIliedownandshutmyeyesandIgohome.Iknowit'swhereI'llfindmyfamilymydogsandmybelongings.IpurposelyleavethewindowopenatnightbecauseIknowI'llbeblamedbyMom.ButIdon'tmindbecauseIwanttohearhersaymynamewhichremindsmeI'mhome. 1Whydoestheauthorcallherparents'bedhersafezoneParagraph3? A.Itisherfavoriteplacetoplay. B.Herparentsalwaysplaytogetherwithherthere. C.Hergrandparents'photosarelinedoneachside. D.Herneedscanbesatisfiedthere. 2Whatcanbelearnedfromthepassage? A.Theoldfurnitureisstillintheauthor'sfistbedroom. B.Manypeopleoftheauthor'sagecanstillfindtheirfirstphysicalhomes C.Theauthor'sfavoriteroominherfirsthomeisthediningroom. D.TheauthorcanstillvisitherfirstphysicalmominLosAngeles. 3Sometimeswhenshefeelslosttheauthorwill. A.trytobringbackasenseofhome B.liedowninbedtohaveadream C.Openthewindowatnight D.gotoLosAngelestovisithermom 4Whatistheauthor'spurposeofwritingthispassage? A.Todescribethestateofherfamily. B.Todeclarehowmuchshelovesherfirsthouse. C.Toexpresshowmuchsheisattachedtoherhome. D.Tolookbackonherchildhood.
计算a+b²
Studieshaveshownittakesaphysicianabout18secondstointerruptapatientaftertheybegintalking. ItwasSunday.Ihadonelastpatienttosee.I1herroominahurryandstoodatthedoorway.Shewasanolderwomansittingattheedgeofthebed2toputsocksonherswollenfeet.Icrossedthethreshold门槛spoke3tothenurseandscannedherchartnotingshewasinstablecondition.Iwasalmostintheclear. Ileanedonthebedraillooking4ather.SheaskedifIcouldhelpputonhersocks. 5Ibeganamonologuethatwentsomethinglikethis:Howareyoufeeling?Yoursugarsandbloodpressurewerehighbutthey're6today.Thenursementionedyou'reanxioustoseeyour7who'svisitingyoutoday.It'snicetohaveafamilyvisitfromfaraway.Ibetyoureallylookforwardtoseeinghim. Eachstoryis8.Somearedetailed;othersarevague.Somehaveabeginningmiddleandend.Otherswanderwithoutaclear9.Somearetrue;othersnot.Yetallthosethingsdonotreally10.Whatmatterstothestorytelleristhatthestoryis11﹣withoutinterruptionassumptionorjudgment. Listeningtosomeone'sstorycosts12thanexpensivediagnostictestingbutiskeytohealinganddiagnosis. Ioftenthoughtof13thewomantaughtmeandIremindedmyselfofthe14ofstoppingsittingdownandtrulylistening.Andnotlongafterinanunexpected15Ibecamethepatientwithadiagnosisofmultiplesclerosis诊断为多发性硬化症atage31.Now20yearslaterIsitallthetime﹣inawheelchair. For16IcouldIcontinuedtoseepatientsfrommychairbutIhadtoresignwhenmyhandswere17.Istillteachmedicalstudentsandotherhealthcareprofessionalsbutnowfromtheperspectiveof18andpatient. ItellthemIbelieveinthepowerof19.ItellthemIknowfirsthandthatimmeasurablehealingtakesplacewithinme20someonestopssitsdownandlistenstomystory. 1A.entered B.stepped C.passed D.approached 2A.Hoping B.wishing C.struggling D.pulling 3A.quickly B.slowly C.carefully D.carelessly 4A.away B.up C.around D.down 5A.However B.Instead C.Therefore D.Moreover 6A.good B.better C.more D.well 7A.son B.daughter C.friend D.sister 8A.unique B.similar C.different D.wonderful 9A.way B.direction C.conclusion D.instruction 10A.attract B.exist C.appeal D.matter 11A.appreciated B.told C.enjoyed D.heard 12A.less B.more C.higher D.cheaper 13A.which B.how C.what D.that 14A.pleasure B.difference C.behavior D.importance 15A.twist B.accident C.occasion D.thing 16A.asgoodas B.aslongas C.assoonas D.aswellas 17A.wounded B.affected C.injected D.hurt 18A.physician B.hospital C.teacher D.school 19A.stopping B.talking C.listening D.sitting 20A.before B.when C.until D.unless
汽车以72千米/时的速度在公路上行驶开向寂静的山谷驾驶员揿一下喇叭4秒后听到回响这时汽车离山谷多远已知空气中声音的传播速度约为340米/秒．设听到回响时汽车离山谷x米根据题意列出方程为
已知x≠0且x2+4x+1=0求的值．
Theoldmaninsistedthatheberightandthattheyoungmansendtothepoliceoffice.
ThefirsttimeheseethefilmETdirectedbyStevenSpielberghemadeuphismindtobecomeadirect.
Themanwassleepingdownstairs这时地震发生了.happen
TheancientChinesegameGoisconsideredoneofthemostcomplicatedstrategygames.Winningthegamewasseenasatestofhumancreativity.Thatisuntilamachinefoundawaytodoitbetter.AlphaGoanartificialintelligenceAImachinebuiltbyGooglewonitsfirstmatchagainstSouthKoreanLeeSedolonMarch9.StilldigestinghislossLeesaidduringthepost﹣gamepressconference'1'Butthatwasjustthebeginning.InthefollowingweekAlphaGooutperformedLeeinanotherthreematches.2SomepeoplehavebeenarguingthatAIisharmfultothehumanrace.3SimilarlyUKscientistStephenHawkingoncewarnedthatthe'developmentoffullartificialintelligencecouldspelltheendofthehumanrace'.Soarewereallyontheverge边缘oflivingintheworldshownintheTerminator终结者sci﹣fimovies?'Notquite'answeredTheEconomist.Afterallit'shardtogetcomputerstoapplytheirknowledgetoeverydaysituations.'4'ThomasJohnsonsaidfounderofanAItoycompany.'Butforarobottowalkupanddownhillsrequiressomanycomplicateddecisionstobemadeinrealtimeandit'sreallydifficulttodo.'AsTheEconomistputit:'WehavealongwaytogobeforeAI'sabilitiestrulybegintoapproachthehumanbraindespitehowpowerfulthetechnologycanbewhenfocusingonasingletask.'MeanwhileJohnMarkoffoftheNewYorkTimesarguedthatresearchersshouldbuildartificialintelligencethataimsfor'intelligenceaugmentation增加'IAinwhichcomputersmakepeoplemoreeffective.Hewrote:'5Sincetechnologydependsonthevaluesofitscreatorswecanmakechoicesusingtechnologytoimprovetheworld.'A.Manyrobotsfelloverlikelittlekidslearningtowalk.B.Wetakeforgrantedthingslikebalanceandvision.C.Eventuallyourfateisinourownhands.D.SowhatisnextforAIandhumanity?E.Thatmadethefive﹣matchscore4﹣1infavorofAlphaGo.F.In2014USbusinessmanElonMusksaidatanMITconferencethatdevelopingthetechnologyiscallingupa'demon魔鬼'.G.Iaminshock;Iadmitthat.
Iwasinaterriblemood.Twoofmyfriendshadgonetothemoviesthenightbeforeandhadn'tinvitedme.Iwasinmyroomthinkingofwaystomakethemsorrywhenmyfathercamein.WanttogoforaridetodayBeck?It'sabeautifulday. No!Leavemealone!ThosewerethelastwordsIsaidtohimthatmorning. Myfriendscalledandinvitedmetogotothemallwiththemafewhourslater.IforgottobemadatthemandwhenIcamehometofindanoteonthetable.MymotherputitwhereIwouldbesuretoseeit.Dadhashadanaccident.PleasemeetusatHighlandParkHospital. WhenIreachedthehospitalmymothercameoutandtoldmemyfather'sinjurieswereextensive.Yourfathertoldthedrivertoleavehimaloneandjustcall911thankGod!IfhehadmovedDaddythere'snotellingwhatmighthavehappened.Abrokenrib肋骨mighthavepierced穿透alung… MymothermayhavesaidmorebutIdidn'thear.Ididn'thearanythingexceptthoseterriblewords:Leavemealone.Mydadsaidthemtosavehimselffrombeinghurtmore.HowmuchhadIhurthimwhenIhurledthosewordsathimearlierintheday? Itwasseveraldayslaterthathewasfinallyabletohaveaconversation.Iheldhishandgentlyafraidofhurtinghim. Daddy…Iamsosorry… It'sokaysweetheart.I'llbeokay. NoIsaidImeanaboutwhatIsaidtoyouthatday.Youknowthatmorning? Myfathercouldnomoretellaliethanhecouldfly.Helookedatmeandsaid.SweetheartIdon'trememberanythingaboutthatdaynotbeforeduringoraftertheaccident.ButIrememberkissingyougoodnightthenightbefore.Hemanagedaweaksmile. MyEnglishteacheroncetoldmethatwordshaveimmeasurablepower.Theycanhurtortheycanheal.Andweallhavethepowertochooseourwords.Iintendtodothatverycarefullyfromnowon. 1Theauthorwasinbadmoodthatmorningbecause. A.hecouldn'tdrivetothemallwithhisfriends. B.hisfatherhadaterribleaccident C.hisfatherdidn'tallowhimtogooutwithhisfriends D.hisfriendshadn'tinvitedhimtothecinema 2Whydidtheauthorsaysorrytohisfatherinthehospital? A.Becausehewasrudetohisfatherthatmorning. B.Becausehedidn'tgetalongwithhisfather. C.Becausehefailedtocomeearlieraftertheaccident. D.Becausehecouldn'tlookafterhisfatherinthehospital. 3Thereasonwhytheauthor'sfathersaidheforgoteverythingaboutthatdayisthat A.hehadapoormemory B.hedidn'thearwhathissonsaid C.helosthismemoryaftertheaccident D.hejustwantedtocomforthisson 4WhatlessondidBecklearnfromthematter? A.Don'thurtotherswithrudewords. B.Don'ttreatyourparentsbadly. C.Don'tmovetheinjuredinanaccident. D.Don'tbeangrywithfriendsatsmallthings.
计算2a+²
在一次主题为中学生课余时间上网的利与弊英语讨论会上同学们对上网利弊争论不休.不能统一作为高三15班班长请你根据下列信息作一小结性发言. 注意:1发言的开头已给出.2字数100字左右. Attentionplease!Iamgoingtogiveyouasummaryoftoday'sdiscussionaboutwhetherwecouldgoonlineinoursparetime
HewasgeneroushistimewhichIwasgrateful.
乙3小时走了x千米则他的速度是．
Peoplewhodoharmtoourenvironmentwon'tescapepunish.
Thelastthirtyyearsseethegreatchangeglobaltemperature.
Thisweeklyfour﹣dayphysicalactivityschedulewillgetyourkidsexcitedaboutbeingactive. Tuesday Whenthekidsgethomefromschooldon'tletthemgostraighttotheTVandgetsettledin.Encouragethemtogetmovingandgetoffthecouch沙发bygivingthemapedometer计步器.Pedometersarethemostfunwhenparentsalsouseonebecausethatturnssteppingwalkingandrunningintoagametoseewhocangetthemoststeps. Thursday ThekidshavedoneagreatjobsofarthisweekbutnowtheylongforalittlemoreTVtime.Insteadofturningoncartoonsletthemwatchfitnessmoviesmadejustforkids.Thesemoviesencouragewatcherstogetupanddancealongtokid﹣friendlymusic. Saturday Getthewholefamilyoutofthehousetogetherandovertoapark.Bringlotsofsportsequipmentpackahealthypicnicandhaveafamilycompetitivesportsday.Kidsandadultsgetintogroupsandplayagainsteachotherintennisbasketballorsoccer.Aftereveryonehasplayedhardforacoupleofhoursstopforapicnicandthenifyourfamilyisn'ttootiredgobackandplaysomemore. Sunday EverychildlovestoplayvideogamesandthereisnobettertimetoallowkidstoplaythemthanonSundaywhennohomeworkisdue.Butdon'tletthemplayagamethatforcesthemtositdownforhours.Dancegameswithafloormat垫子tohelpkidsfollowthedancemovesarepopulartokids. 1Parentsareadvisedtouseapedometertogetherwiththeirkidsbecause. A.theycangivetheirkidssomeadviceaboutwalking B.itcanpreventthemfromwatchingTVtoomuch C.theirkidswillnotuseitiftheydon't D.thiswillallowthemandtheirkidstohaveafuncompetition 2OnThursdaywhenakidwantstowatchTVhisparentsshould. A.lethimwatchitforashorttime B.showfitnessmoviestohim C.takehimoutforawalkinstead D.watchcartoonswithhim 3Accordingtotheauthorthebesttimeforakidtoplayvideogamesis. A.Sunday B.Tuesday C.Saturday D.Thursday
Adeterminedpersonalwaystriestofinishthejob无论它有多难.matter
解方程
HowIwishI能看看那些星星close!see
So对太空着迷thathedevotedallhisenergytoobservingstars.crazy
一列火车进入长300m的隧道从进入隧道到完全离开需20s火车完全在隧道的时间是10s求火车的长度．
该文中共有十处错误每句中最多有两处错误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∧并在此符号下面写出该加的词.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只允许修改十处多者从第11处起不计分. IhaveagoodfriendwhomnameisRose.Lastmonthshelentoneofmyfavoritebook.YesterdayIaskedhertoreturnthebookbacktome.Tomysurprisingshesaidshehadalreadygiventhebooktome.IsearchmydeskandschoolbagbutIdidn'tfindone.Ibecameveryangryaboutherandshoutedathershelefttheclassroomwithtearsinhereyes.HoweverwhenIcamehomelastnight.Iwassurprisedtofindmybooklieundermypillow.NowIregretquarrellingwithher.IamafraidIwilllosefriend.WhatshouldIdo?
SailingThroughHistory Agroupof1309passengersboardedtheMSBalmoralonSundayinSouthamptonEnglandonavoyagetoretracethepathoftheTitanic.TheTitanicwasthebiggestshipintheworldwhenitsailedonitsill﹣fatedmaidenvoyagein1912.Ofthe2227passengersandcrewaboardmorethan1500died.TheshipwhichwasheadedtoNewYorkCitycarriedtherichandfamousonitsfirstvoyage.ItalsocarriedimmigrantswhowereseekingabetterlifeinAmerica. RelativesofpeoplewhosailedontheTitanichistoriansauthorsandpeoplefascinatedbythestoryoftheunsinkableshipareontheBalmoral.Theywanttorememberthedoomedshipandthosewhodiedonherfirstandlastvoyage.ThehistoriclinerhadsetsailonApril101912fromSouthampton.LateatnightonApril14shehitaniceberg.IntheearlymorninghoursofApril15theTitanicsank. TheBalmoralisfollowingTitanic'soriginalroutefromSouthampton.Firstthemodern﹣daycruiselinerdockedintheportofCherbourgFrancewheretheTitanichadpickedupmorepassengers.OnMondayafternoontheBalmoralstopsinCobhIrelandtheTitanic'slastportofcallbeforesailingtoNewYork. BalmoralwillthencruisetheNorthAtlanticOceantothelocationwhereTitanichitanicebergthatrippedtheship'shull外壳.OnSundayApril15at2:20a.m.﹣thetimetheTitanicwentdown﹣passengersandcrewwillholdamemorialservice.ThenexttwodayswillbespentinHalifaxCanadawheremanyvictimsofthesinkingareburied.ThentheBalmoralwillreachitsfinaldestinationinNewYorkCitywhereTitanicwassupposedtodock﹣butneverdid. Untiltodayseveralteamsofdivershaveexploredthesite.Theyhaverecoveredsomeitemssuchasdishesandsilverwareandputthemonpublicdisplay.Andmoretripsareplannedtothewreckageinthefuture.TheTitanicanditspassengersandcrewhavebeenrememberedinbooksmoviesandTVprograms.Butthere'samuchmoreimportantcontributionthatTitanicgaveus.Aftershesanklawmakersandshipbuildersmadeshipssafer.Ittookaterribletragedytomakeshiptravelsaferforall. 1HowmanypassengersinTitanicsurvivedatlast? A.Morethan1500. B.About1309. C.About1000. D.Lessthan750. 2HowmanycountriesdoestheBalmoralreachbeforesailingtoNewYork? A.Two. B.Three. C.Four. D.five. 3TheBalmoralwillstayinCanadajust. A.inmemoryofthedeadpassengersintheBalmoral B.inmemoryofthesurvivorsinTitanic C.inmemoryofthedeadpassengersinTitanic D.inmemoryofthesurvivorsintheBalmoral 4WhatmightbethemostimportantcontributionofsunkenTitanic? A.Itssiteattractsmoreexploringteams. B.Itmakesthelatershipsmoresecure. C.Someofitsitemsareonpublicdisplay. D.Moretripsareplannedtoitswreckage.
Manypeopleholdtheopinionthatisnouseworkhardbecausetheyarenotbornintoprivilegedfamilies.
Wereyouthefirstorthelastchildinyourfamily?Orwereyouamiddleoranonlychild?Somepeoplethink1matterswhereyouwereborninyourfamily.Buttherearedifferentideasaboutwhatbirthordermeans.Somepeoplesaythatoldestchildren2aresmartandstrong﹣willed意志坚强的areverylikely3succeed.Thereason4thisissimple.Parentshavealotoftimefortheirfirstchildandgivehimorheralotofattention.Anonlychildwillsucceedfor5samereason. Whathappenstothe6childreninthefamily?Middlechildrendon'tgetsomuchattentionsotheydon'tfeelthatimportant.Ifafamilyhasmanychildrenthemiddleonesometimesgetslostinthecrowd.Theyoungestchild7oftengetsspecialtreatment.Oftenthischildgrowsuptobefunny.Butarecentstudysawthingsquite8difference.Thestudyfoundthatfirstchildrenbelievedinfamilyrules.Theydidn'ttakemanychancesin9lives.Theyusually10followorders.Rulesdidn'tmeanasmuchtolaterchildreninthefamily.Theytookchancesandtheyoftendidbetterinlife.
某一段路程x千米如果火车以49千米/时的速度行驶那么火车行完全程需要小时．
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高一上学期英语
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