首页
试卷库
试题库
当前位置：
X题卡
>
所有题目
>
题目详情
已知椭圆C：＝1（a＞b＞0）的离心率为，焦距为2． （1）求C的方程； （2）若斜率为﹣的直线与椭圆C交于P，Q两点（点P，Q均在第一象限），O为坐标原点，证明：直线OP，PQ，OQ的斜率依次...
查看本题答案
包含此试题的试卷
高三下学期数学《》真题及答案
点击查看
你可能感兴趣的试题
已知F.1F.2是椭圆a＞b＞0的两个焦点P.为椭圆短轴的端点且∠F.1PF2＝90°则该椭圆的离心
已知椭圆的焦距为8离心率等于0.8求椭圆方程
,
,
,
或
,不确定
已知直线与椭圆相交于A.B两点.1若椭圆的离心率为焦距为2求线段AB的长2在1的椭圆中设椭圆的左焦点
已知椭圆的焦点在x轴上焦距是8离心率为0.8则椭圆的标准方程为______.
已知直线与椭圆相交于A.B.两点.1若椭圆的离心率为焦距为2求线段AB的长2在1的椭圆中设椭圆的左焦
已知椭圆的中心在原点焦点在y轴上若其离心率为焦距为8则该椭圆的方程是.
已知椭圆a＞b＞0的焦距为4且与椭圆有相同的离心率斜率为k的直线l经过点M.01与椭圆C.交于不同两
已知直线相交于A.B.两点1若椭圆的离心率为焦距为2求线段AB的长2若向量互相垂直其中O.为坐标原点
已知椭圆＋＝1a>0b>0的左焦点为F.右顶点为A.上顶点为B.若BF⊥BA则称其为优美椭圆那么优美
已知椭圆C的内接矩形面积的最大值为c为椭圆的半焦距长则椭圆C的离心率为．
离心率e=焦距为4的椭圆标准方程为______.
已知椭圆C.的中心在原点焦点在x轴上焦距为2离心率为.1求椭圆C.的方程2设直线l经过点M.01且与
已知椭圆的短轴大于焦距则它的离心率的取值范围是__________.
已知直线相交于A.B.两点1若椭圆的离心率为焦距为2求椭圆的标准方程2若其中O.为坐标原点当椭圆的离
椭圆Γ:+=1a>b>0的左右焦点分别为F.1F2焦距为2c.若直线y=x+c与椭圆Γ的一个交点满足
已知直线与椭圆相交于
，
两点，若椭圆的离心率为
，焦距为2，则线段AB的长是（ ） A.
B.
2
已知椭圆x2a2+y2b2=1a＞b＞0的右焦点为F右准线为l离心率e=55过顶点A0b作AM⊥l垂
已知离心率为的椭圆的中心在原点焦点在x轴上.双曲线以椭圆的长轴为实轴短轴为虚轴且焦距为2.求椭圆及双
已知椭圆的中心在原点焦点在y轴上若其离心率为焦距为8则该椭圆的方程是________.
已知直线相交于A.B.两点.若椭圆的离心率为焦距为2求线段AB的长2若向量互相垂直其中O.为坐标原点
热门试题
更多
Tiredofdealingwiththoseslowdumbandunfriendlyhotelstaff?Howaboutahotelthatprovideschanceforminimalinteractionwiththepeoplerunningthehotel?IntheHennNaHotelinJapantherearen'tany! BeingcalledWeirdHotelbylocalstheHennNaHotelopenedin2016inthetownofSaseboisstaffedalmostbyrobots.Therobotsarenotjustforfun.Theydoalargeamountofworksavingtimeandmoneyaswell.Theycangreetyouwhenyouenter.Alsotheyplaymusicintheloungeinformyouofthebreakfastmenuandcontrolthelightsinyourhotelroometc. Thinkingthatthehotelshouldbeuniqueandappealingtheownersmadeeachrobotdifferentfromeachotherwithavarietyofshapesandsizes.OneoftherobotsbehindthefrontdeskisdesignedtolooklikeadinosaurIfyouwanttocheckinpushonethedinosaursays.Thentheguestcantypetheinformationonatouchpanelscreen.Insidetheroomthere'sasmallrobotcalledTulyintheshapeofapinktulip郁金香.TulycananswersimplequestionslikeWhattimeisit?andWhatwilltheweatherbeliketomorrow?WithnoswitchesonthewallTulycanalsoturntheroomlightsonoroffifit'stoldto. Buthowdothingslikecheck﹣inandroomaccesswork?Wellthescreenatthereceptioncapturesandregistersadigitalimageoftheguest'sfaceduringcheck﹣inwhichisusedtogetaccess10roomsinsteadoftraditionalkeys.Howeverthereceptionshallalsoprovideyoucardkeysonrequestincaseyouwishtokeepitsubtle! Ifyou'rewonderingwhathappensinthecaseofanemergencyyouneednotworry.Humansdostepinwhenit'sofgreatimportance.Accordingtothehotel'swebsitethereareafewhumanstaffmemberswhoareavailableon﹣call24X7andhelpguestsinthecaseofanemergency. 1TherobotsintheHennNaHotelcandothefollowingthingsfortheguestsEXCEPT. A.tellthebreakfastmenu B.controlthelightsintheroom C.playmusicinthelounge D.respondtoalltherequirements 2Whatcanwelearnfromthepassage? A.TheHennNaHotelismanagedallbyrobots. B.Adinosaur﹣likerobotwillguidegueststocheckin. C.Nohumanstaffcanbeconnectedeveninanemergency. D.Guestscanhaveaccesstoroomsbyusingtraditionalkeys. 3Itcanbeinferredthattheownersofthehotel. A.entertaintheguestsallthetimeinperson B.areimaginativeandhavecreativethinking C.areknowledgeableandacquireadvancedtechnology D.attachgreatimportancetothesocialimageofthehotel 4What'sthemainideaofthispassage? A.Itadvocatespeopletopromotehotelequipment. B.Itcomparestherobotswithhumanstaffinahotel. C.Itintroducesanewhotelstaffedbyintelligentrobots. D.Itdescribeshowwonderfulartificialintelligenceis.
假如你是李华你最近在某网站购得一部电子书阅读器Kindle却发现商品存在一些质量问题.请你给商品负责人写一封电子邮件进行投诉要点如下 1.购买时间 2.质量问题 3.你的要求. 注意 1词数80左右 2可适当增加细节以使行文连贯.
7.5分DidyouhearwhathappenedtoAdamLastFriday?LindseywhisperstoTori. WithhereyesshiningToribragsYoubetIdidSeantoldmetwodaysago. WhoareLindseyandToritalkingabout?ItjusthappenedtobeyourstrulyAdamFreedman.Icantellyouthatwhattheyaresayingisanotniceandbnoteventrue.StillLindseyandToriaren'tverydifferentfrommoststudentshereatLintonHighSchoolincludingme.Manyofourconversationsaregossip闲话.Ihavenoticedthreeeffectsofgossipitcanhurtpeopleitcangivegossipersastrangekindofsatisfactionanditcancausesocialpressuresinagroup. Animportantnegativeeffectofgossipisthatitcanhurtthepersonbeingtalkedabout.Usuallygossipspreadsinformationaboutatopic﹣breakupstroubleathomeevendroppingout﹣thatapersonwouldratherkeepsecret.Themoreembarrassingorshamefulthesecretisthejuicierthegossipitmakes.Probablytheworsttypeofgossipistheabsolutelie.Peopleoftenthinkofgossipersasharmlessbutcruelliescancausepain. Ifweknowthatgossipcanbeharmfulthenwhydosomanyofusdoit?Theanswerliesinanothereffectofgossipthesatisfactionitgivesus.Sharingthelatestrumor传言canmakeapersonfeelimportantbecauseheorsheknowssomethingthatothersdon't.Similarlyhearingthelatestrumorcanmakeapersonfeellikepartoftheingroup.Inotherwordsgossipissatisfyingbecauseitgivespeopleasenseofbelongingorevensuperiority优越感. Gossipalsocanhaveathirdeffectitstrengthensunwrittenunspokenrulesabouthowpeopleshouldact.ProfessorDavidWilsonexplainsthatgossipisimportantinpolicingbehaviorsinagroup.TranslatedintohighschooltermsthismeansthatifeverybodyyouhangaroundwithislaughingatwhatJohnworeorwhatJanesaidthenyoucanbetthatwearingorsayingsomethingsimilarwillgetyouthesamekindofnegativeattention.Thedo'sanddon'tsconveyedthroughgossipwillnevershowupinanystudenthandbook. Theeffectsofgossipvarydependingonthesituation.Thenexttimeyoufeeltheurgetospreadthelatestnewsthingaboutwhyyouwanttogossipandwhateffectsyourjuicystorymighthave. 1Theauthorusesaconversationatthebeginningofthepassageto. A.introduceatopic B.presentanargument C.describethecharacters D.clarifyhiswritingpurpose 2Animportantnegativeeffectofgossipisthatit. A.breaksuprelationships B.embarrassesthelistener C.spreadsinformationaround D.causesunpleasantexperiences 3Intheauthor'sopinionmanypeopleliketogossipbecauseit. A.givesthemafeelingofpleasure B.helpsthemtomakemorefriends C.makesthembetterattellingstories D.enablesthemtomeetimportantpeople
假定你是李华.你从互联网上得知第十二届国际未来商业领袖峰会InternationalFutureBusinessLeaderSummit将在上海举行并欢迎中学生参加.请你写一封电子邮件申请参加.要点如下 1.自我介绍包括英语能力 2.申请参加活动的意图增长商业知识提高领导力加强交流 3.希望获准. 注意1.词数80左右 2.可适当加入细节使内容充实行文连贯.
下列不利于人体散热的是
7.5分IntheprocessofmygrowingupDadwashardonmewhoalwaysmadesureImademybedanddidmyhomework.Hewouldcallinadvancetomakesuretherewasnoalcoholattheparty.Igotsoangrywithhimforlayingdownthelow.IwouldscreamIhateyou!DadwouldyellbackGood!Idon'tcare!DeepdownIknewhedid. OnetimeatapartyIdranktoomuchalcoholandgotsosick.IsaidCallmydad.NextthingDadwascarryingmetothecar.IwokeupthenextmorningthinkingIwoulddefinitelybecriticized.AsexpectedIgotaroastingbutInowunderstandwhyIneeddiscipline. Dadwas29whenhegothisbigrolesinfilms.Ihadanearlystartattheageofninewitharoleina1990sTVseriesbutitwasn'tuntilIfinishedfilmstudiesthatIpursuedmycareerasanactress.LikethoseearlydaysforDadIfacedlotsofrejections.WorkinginsuchacompetitiveindustryI'vesometimesthoughtIcan'tdothisanymore. OnceafteratriptoHollywoodIreturnedtoAustraliasodepressedandspentmonthsinmybedroompaintinglisteningtoEckhartTolle'smusicandtryingtofindmyselfagain.DadsatmedownandsaidAliceIknowit'shardbutit'sallaboutpersistence. NowIgettoworkwithDadalotwhichIlove.Webothpassionateaboutactingwhichcomesfromusbeingsointerestedinpeople.Ifitweren'tforDadIwouldn'tbewhereIamtoday.He'smybiggestfanandwhenyouhavethatinyourlifeyoucangoalongway. 1WhatdoestheunderlinedphrasegotaroastinginParagraph2mean? A.gotscolded B.gotdrunk C.gotinjured D.gotstimulated 2WhichofthefollowingstatementsisWRONG? A.Itisherfatherwhohashelpedshapetheauthorwhosheis. B.Theyarebothenthusiasticaboutactingandinterestedinpeople. C.Asanactorherfather'scareertookoffsmoothlyattheverybeginning. D.Shewasbitteraboutherfatherasaschoolgirlashewastoostrictwithher. 3Whichofthefollowingbestdescribetheauthor'sfather? A.talkativebutdiligent B.strictbutcaring C.persistentandhumorous D.passionateandactive
下列有关高尔基体线粒体和叶绿体的叙述正确的是
假设你叫李津现在在英国工作你的朋友陈立写信告诉你他打算赴英留学想知道初到英国可能会遇到的困难.请你用英语给他写一封回信信的内容应包括 1.可能会遇到的困难语言方面的障碍饮食的不习惯想家孤独等 2.鼓励他并表示愿意帮助他. 注意1.词数80左右 2.信的开头已为你写好不计入总词数. DearChenLi I'mgladtohearfromyou.YouaskedmeaboutthedifficultiesyoumaymeetwithwhenyougethereinUK. Bestwishes! Yours LiJin
回答下列与生态系统相关的问题． 1在森林生态系统中生产者的能量来自于生产者的能量可以直接流向答出2点即可． 2通常对于一个水生生态系统来说可根据水体中含氧量的变化计算出生态系统中浮游植物的总初级生产量生产者所制造的有机物总量．若要测定某一水生生态系统中浮游植物的总初级生产量可在该水生生态系统中的某一水深处取水样将水样分成三等份一份直接测定O2含量A另两份分别装入不透光甲和透光乙的两个玻璃瓶中密闭后放回取样处若干小时后测定甲瓶中的O2含量B和乙瓶中的O2含量C．据此回答下列问题． 在甲乙瓶中生产者呼吸作用相同且瓶中只有生产者的条件下本实验中C与A的差值表示这段时间内C与B的差值表示这段时间内A与B的差值表示这段时间内．
7.5分Centuriesagothesecaveswereplacesofworship终把forBuddhistmonks.Todaythey'rehomesfor200poorAfghanfamiliesandoneclassroom. FereshtaAhmadiwasabletostayinschoolafterherfamilymovedtothecavesaboutadecadeago.She'snowasenioratanall﹣girlshighschoolinBamyanbutshefelttheneedtoeducatethechildrenofcavesettlers.So6yearsagoshetransformedherlivingspaceintoaclassroom. For2hourseverydaysheteaches30primaryschool﹣agekidsdifferentsubjectsincludingEnglish.Shesaysshewantstogiveanopportunitytothechildrenwhodon'thaveaccesstomainstreamschools. Cavesettlersarenodifferentfrompeoplewholiveinmodemcommunitiesorpeoplewholiveinfancyapartmentsandbuildings.Theytoocanstudycangotopublicschoolsandtakeprivatecoursessotheybuildtheirabilitiesanddevelopment. Usingherownmoneytheyoungteacheropenedasmalllibrarywith200bookstoimprovethereadingskillsofherstudents.Shehopestoexpandhercaveclassinthefuture.Myplanistochangemysmallcoursetoabigschoolandtheremustbesomeassistancefromgovernmentand/orotherorganizationssothatIcantakemyservicestothenextlevel. Thechildreninthisclassroomarehappytogetaneducationandtheyhavebigdreamsforthefuture.WestudydifferentsubjectshereforexampleDarimathEnglishdrawingandreading.Iwanttobecomeadoctorinthefutureandservemypeoplesaidoneofthestudents. Yearsofconflictandpovertyforcedthesefamiliestoseekrefuge避难所intheseancientcaveswithnobasicfacilitiesandprevioustoAhmadi'sinitiative自发性nochanceofgettinganeducationforthechildren.AfteranAfghanservicebroadcastreportaboutAhmadi'sschoolAfghanistan'sMinistryofEducationofferedtohelpherinherefforts 1WhatdoesAhmadithinkvitalforthechildren? A.Asecureincomeinthefuture. B.Theiradmissiontocollege. C.Acomfortablelivingspace. D.Theiraccesstoeducation. 2Whatcanweinferfromthelastparagraph? A.Ahmadihasbeenhonored. B.Themassmediaarepowerful C.Ahmadi'splanispromising. D.AllAfghansarelefthomeless 3WhichofthefollowingwordsbestdescribesAhmad? A.Adventurous B.Selfless C.Innocent D.Aggressive.
7.5分RussGremelnow98yearsolddecideditwastimetodonate﹩2milliontotheIllinoisAudubonSocietyacharity慈善机构topurchasenearly400acresoflandforwildlifeprotection.Gremelwasabletomakethisamazingdonationbecausehepurchased﹩1000worthofWalgreensstock股票sevendecadesagowhosevaluehasgrownrecently. AsinglemanwithnokidsGremelhaslivedinthesameChicagohousefor95yearsandhasalwayslivedsimplyneighborPatrickFalsotoldTODAY.FalsosaidheheardGremelsaymanytimesthemoneywasn'tminetobeginwithandthathealwaysintendedtogiveitaway. TheGremelWildlifeshelterwasfoundedonJune4.IllinoisAudubonSocietypresidentJimHerkertsaidGremel'sdonationwasextremelygenerous.It'sallowingustoprotectareallyvaluableandimportantpossessionandrealizeoneofGremel'swishesthatwecouldfindaplacewherepeoplecouldcomeoutandexperiencenaturethewayhedidasakidHerkerttoldTODAY. AfterdoingallthisthispastweekendGremeladoptedanoldChihuahua吉娃娃犬.Winniethedogwaspickedupasahomelessdogseveralmonthsago.Shesufferedfromakindofcancerwhichwastreated﹣andallsheneededwasalovinghomewhichColleenCollinsthefounderofPerfectPoochesAdoptionAgencywasdeterminedtofind. GremelhadlosthisownbelovedChihuahuaearlierthisyear.WhenhereachedouttoCollinsaboutWinnieshefeltthiscouldbeagoodmatch.ThatfeelinggrewwhenshebroughtWinnietohishouseforameetandgreetandWinniewasintroducednotonlytoGremelbutalsosomeofhisfriendsandneighbors.Onehadbroughtoveralotoffreshstrawberriesallsaidthey'dbetheretohelpoutinanywayneeded. 1PatrickFalsoismentionedinthetextmainlytoexplain. A.howGremelearnedthemoney B.whatkindofpersonGremelis C.whyGremelmadethedonation D.whereGremelhasbeenliving 2WhatcanwelearnaboutRussGremelfromthetext? A.Heraisedmanypetdogsinhislife. B.HeboughtWalgreensstockatage28. C.HeadoptedayoungChihuahuarecently. D.Hevolunteeredinwildlifesheltersregularly. 3WhatcanweinferaboutGremel'sneighborsfromthetext? A.Theyliveinharmonywithanimals. B.TheyareimpressedwithdogWinnie. C.Theyleadahealthyandwealthylife. D.Theyarecaringandkindtoeachother.
下列关于人体组织液的叙述错误的是
Twothingschangedmylifemymotherandawhiteplasticbikebasket.Ihavethoughtlongandhardaboutitandit'strue.Iwouldbeadifferentpersonifmymomhadn'tturnedasillybicycleaccessoryintoalifelessonIcarrywithmetoday. Mymotherandfatherwereunitedintheirwayofraisingchildrenbutitmostlyfelltomymothertoactuallycarryitout.LookingbackIhonestlydon'tknowhowshedidit.Managingthefamilybudgetmusthavebeenaveryhardtaskbutshemadeitlookeffortless.Ifwecomplainedaboutnothavingwhatanotherkiddidwe'dhearsomethinglikeIdon'tcarewhatso﹣and﹣sogotforhisbirthdayyouarenotgettingaTVinyourroom/acarforyourbirthday/alavishsweet﹣16party.Wehadtoearnourallowance零用钱bydoingchoresaroundthehouse.Icanstillrememberhowlongittooktopolishthelegsofourcoffeetable.Mybrotherscannodoubtrememberhoursspentcleaningthehouse.LikethetwolittlegirlsgrowingupattheWhiteHousewemadeourownbedsnooneleftthehouseuntilthatwasdoneandpickedupafterourselves.Wehadtokeeptrackofourbelongingsandifsomethingwaslostitwasnotreplaced. Itwassummerandonedaymymotherdrovemetothebikeshoptogetatirefixed﹣andthereitwasinthewindow.WhiteshinyplasticanddecoratedwithflowersthebasketwinkedatmeandIknew﹣Iknew﹣Ihadtohaveit. It'sbeautifulmymothersaidwhenIpointeditouttoherWhataneatbasket. ItriedtoholdoffatfirstIplayeditcoolforashortwhile.ButthenIguessIcouldn'tstanditanylongerMompleasecanIpleasepleasegetit?I'lldoextrachoresforaslongasyousay.I'lldoanythingbutIneedthatbasketIlovethatbasket.PleaseMom.Please? Iwasdesperate. YouknowshesaidgentlyrubbingmybackwhilewebothstaredatwhatIbelievedwasthecoolestthingeverIfyousaveupyoucouldbuythisyourself. BythetimeImakeenoughit'llbegone! MaybeRogerherecouldholditforyoushesmiledatRogerthebikeguy. Hecan'tholditforthatlongMom.Someoneelsewillbuyit.PleaseMomPlease? Theremightbeanotherwayshesaid. Andsoourpayingplanunfolded.MymotherboughtthebeautifulbasketandputitsafelyinsomehidingplaceIcouldn'tfind.EachweekIeagerlycountedmygrowingsavingsincreasedbyextraworkhereandtherewashingthecarhelpingmymothermakedinnerdeliveringorcollectingthingsonmybikethatalreadylookednakedwithoutthebasketinfront.AndthenweekslaterIcountedre﹣countedandjumpedforjoy.Ohhappyday!Imadeit!Ifinallyhadtheexactamountwe'dagreedupon…. Dayslatertheunthinkablehappened.AneighborhoodgirlI'dplayedwithmillionsoftimesappearedwiththeexactsamebasketfixedtohershinynewbikethatalreadyhadallthebellsandwhistles.Irodehardandfasthometotellmymotheraboutthisdisaster.Thishorribleturnofevents. AndthencamethelessonI'vetakenwithmethroughmylifeHoneyYourbasketisextra﹣specialMomsaidgentlywipingawaymyhottears.Yourbasketisspecialbecauseyoupaidforityourself. 1Whatcanwelearnfromthefirsttwoparagraphs? A.Thechildrenenjoyeddoinghousework. B.Theauthorcamefromawell﹣offfamily. C.Themotherraisedherchildreninanunusualway. D.ThechildrenwerefondoftheUSpresident'sdaughters. 2Whentheauthorsawthebasketinthewindowshe. A.fellinlovewithit B.staredathermother C.recognizeditatonce D.wentuptothebikeguy 3Whydidtheauthorsaymanypleasestohermother? A.Shelongedtodoextrawork. B.Shewaseagertohavethebasket. C.Shefelttiredafterstandingtoolong. D.Shewantedtobepolitetohermother. 4ByusingnakedParagraph12theauthorseemstostressthatthebasketwas. A.somethingshecouldafford B.somethingimportanttoher C.somethingimpossibletoget D.somethingshecoulddowithout
7.5分TheUnitedStates'jobmarkethasmillionsofunfilledjobs.ManyofthoseJobsrequiretechnicalskills.Howeveremployerssaymanyofthosejobsarevacantbecausetheycannotfindpeoplewiththerightskills.Laborexpertscallthisparadoxtheskillsgap.Anumberofeffortshavebeenlaunchedtobetterunderstandandsolveit. NicholasWymanwroteabookcalledJobUHowtoFindWealthandSuccessbyDevelopingtheSkillsCompaniesActuallyNeed.Hecallstheskillsgapalabormarketmismatch﹣peoplewithoutjobsandjobswithoutpeople. IntheUnitedStatesthecostofatraditionalfour﹣yearcollegecanbeveryhigh.U.S.collegesanduniversitiesproducemanygraduateseveryyear.Yetunemploymentratesamongnewgraduatesarehigh. NicholasWymansaysacombinationoftechnicalclassesandon﹣the﹣jobtraining﹣﹣﹣anapprenticeship学徒﹣﹣﹣wouldbeabetterchoiceformanypeople.HenotesthatAnapprenticeshipiswhereyoulearnfromaspecialistyouareprovidedguidanceandyoulearninanon﹣the﹣jobenvironment.Itisvitaltogettechnicalskillsthatareofimmediatevaluetoanemployer.Anditisimportanttogettransferableskillsbecausetechnologyandthenatureoftheworkplacearechangingatafasterratethanbefore. Therearequestionsaboutthedefinitionsizeandnatureoftheskillsgapinthelaborforce.IowaStateUniversityresearchersstudiedsomeofthesequestionsrecently.Theyexaminedemploymenteducationandpopulationinformationandfoundtheevidenceofaskillsgapisweak. IowaState'sLieslEathingtonnotedthatmanypolicymakersandemployerssaythereisopportunityinmiddleskillsareaslikemachining.Yetshesaidthemostrecentrecession经济衰退hitsomeofthosejobareashard.Shesaidstudentsshouldbeonguardbecauseoureconomyreallyisn'taddingthatmanyjobsthatrequirethemiddleskills. Shesaidemployerscouldgetmorewell﹣qualifiedapplicantsiftheyofferedhigherwages.Shenotedthatgraduatesoftwo﹣yeartrainingprogramsstillgenerallymakelessmoneythangraduatesoffour﹣yearcolleges. Thequestionoffindingtherightpersonfortherightjobremainsadifficultone.TheDepartmentofLaborsays＝8.7millionAmericansareunemployedandanother6.7millioncanfindonlypart﹣timework. 1Theunderlinedwordparadoxinparagraph1refersto. A.thelargenumberofunemployednewgraduates B.thedemandsemployersmakeonemployees C.peoplewithoutjobsandjobswithoutpeople D.peopledisqualifiedforthevacantpositions 2WhatwillNicholasWymanprobablyadvisenewgraduatestodotogetemployed? A.Toreceivetechnicaltraining. B.Todropthecostlycollegeeducation. C.Tovaluethejobopportunities. D.Toarmthemselveswithvariousskills 3AccordingtoLieslEathingtonwhatisthesolutiontotheskillsgap? A.Reformingthedullnessofeconomy. B.Guardingagainstrecessions. C.Updatingworkers'professionalskills. D.Raisingemployees'earnings.
IgrewupinasmalltowninOhiowhereeveryoneknewamancalledBob.Uneducatedhecouldn'ttalkplainly.Andbecausehewas1andnotverysmarteveryoneteasedhim.I2hewasaneasymark. Onedayhecamewalkingby.Iwasabout12andthoughtitwouldmakemefeelgrown﹣upto3himliketheadultsdid. HeaskedhowIwasdoing.Itoldhimmyfatherwas4andthatwelackedmoney.Icouldhearmyfriends5inthebackgroundsoIwentonwiththelie.Ihadhim6socompletelythateverytimeheinquiredaboutthe7.Iwouldmakeitseemincreasinglyworrying. Iknewhemadea8bydoingoddjobs打零工soitseemed9whenheaskedmeifweneededanything.Itoldhimthatwedidn'tknowifwewould10.HerespondedYoupoorthing.Iwill11foryou. ThatnightIheardthe12rattle作响softly.ThinkingitwasthewindbeatingagainstitI13it.LaterwhenIopenedthedoortogooutsideIfoundaboxof14Iknewwhohadgiventhefood.I15thesmallboxofcannedfoodwithtearsinmyeyes.Ifelt16andwantedtoreturnthegroceries. Myfatherwouldnotletmetakethebox17.HesaiditwouldhurtBob.EachdaywhenweweretohavedinnermyfatherwouldaskWhatsidedisharewehavingfromthe18boxtoday? Itwas19formetoeatthefood.IknewBobhadgiven20.HegavethebesthehadbutIdidnotdeservethegift. 1A.ill﹣treated B.bad﹣tempered C.good﹣natured D.warm﹣hearted 2A.guessed B.predicted C.insisted D.hoped 3A.condemn B.tease C.annoy D.abuse 4A.delayed B.prohibited C.deserted D.unemployed 5A.laughing B.whispering C.cheering D.clapping 6A.absorbed B.amused C.struck D.fooled 7A.atmosphere B.situation C.money D.reason 8A.budget B.profit C.living D.fortune 9A.funny B.impossible C.practical D.moving 10A.panic B.remain C.starve D.compromise 11A.manage B.operate C.purchase D.pray 12A.window B.door C.fence D.box 13A.explored B.fastened C.ignored D.investigated 14A.groceries B.vegetables C.snacks D.fruits 15A.heldup B.lookedthrough C.checkedout D.tookover 16A.thrilled B.touched C.frustrated D.ashamed 17A.back B.away C.out D.apart 18A.money B.check C.ice D.gift 19A.horrible B.hard C.pleasant D.precious 20A.personally B.secretly C.sacrificially D.enthusiastically
Yourcolleague'ssharpcommentkeepsreplayinginyourmind.Twoofyourstudentsaretrappedinahesaid/shesaidbattle.Whenyoureflectonyouremotionalreactionsyousometimesgetcaughtupincyclesofnegativefeelingswhichcanmakeyoufeelevenworse.Ifsotheanswermaylieinaskillcalledself﹣distancingtheabilitytotakeastepbackandviewyourselfmoreobjectively.Accordingtoaresearchwhenpeopleadoptself﹣distancingwhilediscussingadifficulteventtheymakebettersenseoftheirreactionsexperiencelessemotionalsufferinganddisplayfewersignsofstress. Butwhatmightself﹣distancinglooklikeinaction?Consideratypicalhesaid/shesaidstudentconflictwheretheyareeachfocusingontheirownfeelings.OneisthinkingIcan'tbelievehedidthattome.AndanotherinsistsShereallyhurtmyfeelings.Howeverifyouaskthemtotaketheself﹣distancingtheymightstepoutsideofthemselvesandaskbroaderquestions:Whywashesohurtinthissituation?orHowdidherangeraffecthim? Althoughthisapproachmaysoundtoosimpletobeeffectivestudiesindicatethatachangeinpointofviewcanhaveapowerfuleffectonthewaypeoplethinkfeelandbehave.Hereareseveraldifferenttechniquesyoucantry. Firstconsiderhowathoughtfulfriendmightrespondafterquietlyobservingtheirsituation.BesidesavoidusingthepronounI.Focusonusingthird﹣personpronounsheshetheyandtheywereabletoseethestressfuleventaschallengingratherthanthreatening.FinallyaskyourselfHowwouldIfeelaboutthisoneweekfromnowortenyearsfromnow?Thisformofmentaltimetravelmaybeeffectivebecauseourattentionisdirectedawayfromourimmediateconcretecircumstances. 1Whatisself﹣distancing? A.Gettingstuckinnegativeemotions. B.Astressfulsituation. C.Astudyonrelievingemotionalstress. D.Reflectingonyourselfobjectively. 2Paragraph2isdevelopedby. A.example B.definition C.classification D.process 3Whichofthefollowingstatementusesthetechniquesofself﹣distancing? A.I'mangrywithhim. B.HowIwishIcouldgobacktothepast! C.Howdidthesetwopeoplegettothispoint? D.Hegrabbedmynotesandthenandthen… 4Whatisthebesttitleforthepassage? A.WhySelf﹣distancingMatters B.TheApplicationofSelf﹣distancing C.BreakingtheCycleofNegativeReflection D.WaystoReflectonEmotionalReactions
DuringthewarmyhusbandwasstationedatanarmycampinadesertinCalifornia.Iwenttolivethereinordertobe1him.Ihatedtheplace.Ihadnever2beensounhappy.Myhusbandwasorderedoutonalong﹣termdutyandIwasleftinatinyshack棚屋alone.Theheatwas3﹣almost125°Fevenintheshadeofacactus仙人掌.4asoultotalkto.Thewindblewnon﹣stopandallthefoodIateandtheveryairIbreathedwere5withsandsandsand! IwassosorryformyselfthatIwrotetomyparents.ItoldthemIwas6andcomingbackhome.IsaidIcouldn'tstanditoneminutelonger.I7beinprison!Myfatheransweredmy8withjusttwolines﹣twolinesthatwillalwayssinginmy9﹣twolinesthatcompletelychangedmylife Twomenlookedoutfromprisonbars Onesawthemudtheothersawthestars. Ireadthosetwolines10.Iwasashamedofmyself.ImadeupmymindIwouldfindoutwhatwasgoodinmypresent11Iwouldlookforthestars. Imadefriendswiththenativesandtheir12amazedme.Theygavemepresentsoftheirfavoriteartworkswhichtheyhad13toselltotourists.Istudiedthedelightfulformsofthecactus.Iwatchedforthedesertsunsetsand14forseashellsthathadbeenlefttheremillionsofyearsagowhenthedeserthadbeenanocean15. Whatbroughtaboutthis16changeinme?Thedeserthadn'tchanged17Ihad.Ihadchangedmy18.AndbydoingsoIchangedanunhappyexperienceintothemostamazing19ofmylife.IwasexcitedbythisnewworldthatIhaddiscovered.Ihadlookedoutofmyself﹣createdprisonand20thestars. 1A.off B.behind C.near D.beyond 2A.before B.already C.then D.still 3A.inflexible B.incomprehensible C.uncontrollable D.unbearable 4A.Only B.Not C.Many D.Such 5A.covered B.filled C.buried D.charged 6A.catchingup B.keepingup C.givingup D.gettingup 7A.oughtto B.mightwell C.wouldrather D.hadbetter 8A.request B.call C.question D.letter 9A.comparison B.imagination C.consideration D.memory 10A.overandover B.byandby C.upanddown D.nowandthen 11A.company B.occupation C.situation D.relationship 12A.movement B.reaction C.guidance D.purpose 13A.refused B.failed C.managed D.happened 14A.asked B.hunted C.waited D.headed 15A.floor B.surface C.rock D.level 16A.shocking B.challenging C.puzzling D.astonishing 17A.as B.but C.for D.or 18A.attitude B.principle C.identity D.standard 19A.vacation B.operation C.affair D.adventure 20A.sought B.counted C.found D.reached
物质W是一种含氮有机物会污染土壤．W在培养基中达到一定量时培养基表现为不透明．某研究小组欲从土壤中筛选出能降解W的细菌目标菌．回答下列问题． 1要从土壤中分离目标菌所用选择培养基中的氮源应该是． 2在从土壤中分离目标菌的过程中发现培养基上甲乙两种细菌都能生长并形成菌落如图所示．如果要得到目标菌应该选择菌落进一步纯化．选择的依据是． 3土壤中的某些微生物可以利用空气中的氮气作为氮源若要设计实验进一步确定甲乙菌能否利用空气中的氮气作为氮源请简要写出实验思路预期结果和结论即． 4该小组将人工合成的一段DNA转入大肠杆菌使大肠杆菌产生能降解W的酶酶E．为了比较酶E与天然酶降解W能力的差异该小组拟进行如下实验请完善相关内容． ①在含有一定浓度W的固体培养基上A处滴加含有酶E的缓冲液B处滴加含有相同浓度天然酶的缓冲液C处滴加三处滴加量相同． ②一段时间后测量透明圈的直径．若C处没有出现透明圈说明若AB处形成的透明圈直径大小相近说明．
7.5分ThepictureofGeorgeWashingtonisontheone﹣dollarbill.HeservedasAmerican'sfirstpresidentfrom1789to1797.PresidentWashingtonhasbeencalledtheFatherofhiscountry. ThethirdpresidentoftheUnitedStatesThomasJeffersonisonthetwo﹣dollarbill.HewasthemainwriteroftheDeclarationofindependencein1776.Jeffersonwasoneofthemostinfluentialofthenation'sFoundingFathers.Hewasalsoaplantexpertarchitectmusicianandinventor. AnotherofAmerican'sgreatestpresidentsAbrahamLincolnisonthefive﹣dollarbill.Heservedasthesixteenthpresidentfrom1861until1865.HesuccessfullyledthecountrythroughtheCivilWarsavedtheUnionandendedslavery. ThepictureofAlexanderHamiltonappearsontheten﹣dollarbill.Hamiltonwasneverpresident.ButhewasthefirstSecretaryoftheTreasuryandoneoftheFoundingFathers.Hewasalsoaneconomistandpoliticalphilosopher. AndrewJacksonwastheseventhpresidentservingfrom1829to1837.Hesupportedpopulardemocracyandindividualliberty.Hispictureisonthetwenty﹣dollarbill. Anotherpresidentisonthefifty﹣dollarbill.UlyssesS.Grantservedfrom1869to1877.BeforeservingaspresidentGrantwasmilitarycommanderofUnionforcesduringtheCivilWar.UnderhiscommandtheUnionArmydefeatedConfederateforces. Sowhodoyouthinkisontheonehundred﹣dollarbill?ItisBenjaminFranklin.FranklinwasneverelectedpresidentbutwasoneoftheFoundingFathers.Hewasalsoaleadingwriterandprinterpoliticalthinkerpoliticianpostmasterscientistinventorcivilactivistanddiplomat. TheseAmericanstatesmenareonthefrontofthebills.Thebacksofthenotesshowimagesfromnation'shistoryorfamousplaces.TheyareinordertheGreatSealoftheUnitedStatesthesigningofDeclarationofIndependenceandtheLincolnMemorial.TheothersaretheTreasuryBuildingtheWhiteHousetheCapitolBuildingandindependenceHall. 1ThedesignofthebillsshowsthatAmericansvaluestheirpeople's. A.talentsinmanyways B.successintheircareers C.inventionsinnewfields D.contributionstothecountry 2Forhundredsofyearsthosehistoricmenonthebillsfoughtforthenation's. A.economyandpower B.independenceanddemocracy C.wealthandsuccess D.faithandglory 3Whichofthefollowingmightbethebesttitleforthetext? A.MenontheMoney B.theDesignofUSBills C.HistoryontheMoney D.theStoryofUSBills
GrowingupinKenyawasamazingbecauseIlearnedsomuchthoughthepovertyandlackofresourcesweresometimesfrustrating.IknewIdidn'thavemuchbutIwas1. TherewasonlyonethingIwasn'thappywith2.Iwantedtogotohighschoolanduniversity.Ihadthedrivethewillandthegrades3Ididn'thavetheresources.Even4thingslikefoodwaterandshelterweren'treadilyavailable.Youngpeopleinpovertyhavelittleorno5tohighschoolsanduniversities.WhereIliveditwaschallenging6someonehelped.WhenIleftprimaryschoolIwasinthesame7asmanyotherpoordisadvantagedyouth.8duringthatyearacharitablehighschoolforgirlsStareheGirlsCentrewas9andIreceivedascholarship.TodayIam10recordasbeingthefirststudenttobeenrolledinthisschool. In2006myschool11TheGlobalGiveBackCircleanot﹣for﹣profitorganizationfor12disadvantagedgirlstocompletetheireducationandgain13skills.AftergraduatingfromhighschoolIwasgivenaccesstoanine﹣monthITcourse.14itsgive﹣backattitudehadtaughtustonotonlycareaboutourselvesbutotherpeople.Withthisinmind10ofuscreatedawebsitecalledHeySisterGetClued﹣Up.Throughthiseducationalwebsiteaimedatnetworking10000African15worldwideallSisterscommittosendinginformationtotheirvillages.Thiscanbeto16financialfreedomadvanceinformation17tohealthissuesandprovideknowledgeaboutsocialnetworkingbehavior. HeySisterGetClued﹣Upisonly18tothosegirlswhocanaccesstheInternetwhichhighlightsthehugechallengein19thedividebetweenthehavesandhave﹣nots.Butourplanisthatthesegirlswill20whattheylearntoothergirlsthroughthepoweroftheirvoice. 1A.energetic B.happy C.confident D.hopeful 2A.status B.college C.entertainment D.education 3A.so B.and C.but D.since 4A.cheap B.basic C.important D.simple 5A.access B.means C.chance D.dream 6A.so B.when C.as D.unless 7A.occasion B.situation C.dilemma D.position 8A.Generally B.Importantly C.Luckily D.Casually 9A.putup B.takenup C.madeup D.setup 10A.on B.in C.at D.for 11A.approved B.took C.joined D.launched 12A.psychologically B.physically C.educationally D.financially 13A.social B.average C.typical D.professional 14A.Inshort B.Inall C.Inaddition D.Inbrief 15A.students B.girls C.kids D.teenagers 16A.promote B.introduce C.employ D.present 17A.attached B.compared C.related D.devoted 18A.alternative B.acceptable C.appropriate D.available 19A.narrowing B.shortening C.declining D.changing 20A.encourage B.spread C.add D.apply
IfeelthatIwasblessedbyanAngelnotlongago.Weliveinasmalltownwherelifeispeaceful.AfewdaysbeforeChristmasIwasoutintownshoppingwithmyhusband.Becauseofthecoldmyfingershrankcausingmyanniversaryringtofalloff.Ididn'tnoticethisuntilwegothome.Ibecamephysicallyill.Ithoughtmyhusbandwasgoingtohaveaheartattack. Yesitisamaterialitembutitisalsoaverysentimental情感的item.Hewentoutandretracedoursteps.Icalledthestoreswewereinandnooneturneditin.Ithoughtitwasgoneforsure.Wellataroundmidnightlastnightourdogsbecamecrazybarkingnervously.Wehaveasunroomthatisattachedtoourhome.Thedoortothatisusuallylocked.Apparentlyweleftitunlocked. Mymotorbikewasparkedoutthere.Initsbasketwasaringbox…holdingmyring!Alongwiththeringwasaband.Itwasahalfsizesmallerthanmyring. Therewasalsoanotethattoldthestoryofthisstrangerfindingtheringandrecognizingtheworkasitwasacustompiece.Thepersonthenwenttothejewelerandexplainedaboutfindingthering. Thejewelerwasafriendofminesoshegavehermynameandasthetownwassosmallwewereeasytofind.Thestrangerwhofoundtheringpurchasedthebandinordertokeeptheringinplacewhenitwascoldout.AndshealsoleftagiftcardforustotakeourfamilyouttothemoviesasaChristmasgift.ThenotewassignedSanta.Myfriendiskeepingherlipssealedaboutwhomitwas. 1Whatdidtheauthordowhenshefoundherringlost? A.Sheblamedherhusbandforlosingit. B.Shetelephonedtheshopstheyhadbeenin. C.Shewasphysicallyillduetotheheartattack. D.Shewentbackalongthesamewaytosearchforit. 2Howdidtheauthorgetthelostringback? A.Thedogdiscovereditinthestore. B.Herfriendfounditinthesunroom. C.Ajewelerpurchaseditfromsomeone. D.Astrangersentitbackwithoutbeingnoticed. 3Whichofthefollowingwordscanbestdescribethestranger? A.Intelligentanddiligent. B.Ambitiousandgenerous. C.Courageousandenergetic. D.Selflessandconsiderate.
OnewinternineyearsagoIvolunteeredatahomelessshelterinLosAngeles1mealsforpeople.ThereImetAlbertwhosaidhelikedmy2.Wanttoseemine?heaskedliftinghis3.Hewasbarefoot.Hesaidhehadbeenhopingtogetapairbuthadnevermadeit.Ifelta4feelinginmystomach. Thenextday5Iwenttobuysocks﹣﹣﹣about﹩1006.Thatnextmorning7myalarmfor5a.m.anddrovetothelocalparkacommondestinationfor8people. Itwasstill9out.Itookoutabagofsocksand10agroupofmenstandingaroundatree11withcold.WhenIhandedeachofthemapairofsockstheylookedconfusedatfirst12mymotives动机buttookthem. AnhourlaterI13allthesocks.Mostpeopleweresleeping.IfeltlikeSanta.Whentheywould14theywouldfindaverymeaningful15. EveryweekI'llhandoutmanysocks.IfI'mawayfor16aweekIwillbringsockswithmeandhandthemouttothehomelessinotherstatesandcountries. Inthepastyearsthishasbecomemy17.It'saddictiveIsupposeandit'sincrediblysatisfyingtohelpmakesomepeople's18alittlebiteasier.PartofmehopestoseeAlbertouttherebut19Idon'tI'dliketothinkoneofthepairswill20him. 1A.preparing B.giving C.donating D.buying 2A.car B.meals C.socks D.help 3A.leg B.arm C.hand D.head 4A.magical B.sinking C.comforting D.surprising 5A.finally B.inaddition C.however D.afterwork 6A.money B.worth C.value D.worthy 7A.made B.placed C.set D.fixed 8A.merciless B.sleepless C.jobless D.homeless 9A.dark B.rainy C.quiet D.windy 10A.signaledto B.shoutedat C.headedfor D.wavedat 11A.trembling B.smiling C.jumping D.sleeping 12A.proving B.inquiring C.demanding D.questioning 13A.tookoff B.tookout C.gaveoff D.gaveout 14A.situp B.wakeup C.riseup D.setup 15A.meat B.present C.act D.kindness 16A.lessthan B.otherthan C.morethan D.ratherthan 17A.habit B.task C.past﹣time D.entertainment 18A.winter B.lives C.families D.difficulties 19A.unless B.until C.evenif D.asif 20A.suit B.fit C.match D.find
回答下列与种群数量有关的问题． 1将某种单细胞菌接种到装有10mL液体培养基培养基M的试管中培养并定时取样进行计数．计数后发现试管中该种菌的总数达到a时种群数量不再增加．由此可知该种群增长曲线为型且种群数量为时种群增长最快． 2若将该种菌接种在5mL培养基M中培养条件同上则与上述实验结果相比该种菌的环境容纳量K值填“增大”“不变”或“减小”．若在5mL培养基M中接种该菌的量增加一倍则与增加前相比K值填“增大”“不变”或“减小”原因是．
回答下列与细菌培养相关的问题． 1在细菌培养时培养基中能同时提供碳源氮源的成分是填“蛋白胨”“葡萄糖”或“NaNO3”．通常制备培养基时要根据所培养细菌的不同来调节培养基的pH其原因是．硝化细菌在没有碳源的培养基上填“能够”或“不能”生长原因是． 2用平板培养细菌时一般需要将平板填“倒置”或“正置”． 3单个细菌在平板上会形成菌落研究人员通常可根据菌落的形状大小颜色等特征来初步区分不同种的微生物原因是． 4有些使用后的培养基在丢弃前需要经过处理这种处理可以杀死丢弃物中所有的微生物．
假定你是李华你们班级的节目哈姆雷特Hamlet将参加下个月学校英语文化节话剧drama比赛你给度假中的外教Mr.Hurst写一封电子邮件并附上节目录像请他给予你相关的指导. 注意 1词数100左右 2可适当增加细节以使行文连贯 3邮件的开头和结尾已为你写好. DearMr.Hurst Yours LiHua.
In1984IapassionatestudentwasheadingfortheuniversitywiththedreamofsittingonaSupremeCountbenchsomewhere.Twenty﹣oneyearslaterIamsillapassionate1andonewithquiteadifferenttaletotell. Mygrandmaan2womangraduatedfromcollegeattheageof65.Shewasthefirstinourfamilytoreachthatgoal.ButoneyearafterIstartedcollegeshe3cancer.Imadethechoiceto4fromcollegetocareforher.Itmeantthatschoolandmypersonaldreamwouldhaveto5. ThenIgotmarriedwithanother6buildingmyfamilywithacombinationofadoptedand7children.In1999weadoptedourfirstson.Ayearlatercameoursecondadoptedboy.Then8sonNo.3.In2003Igavebirthtoanotherboy. Youcanimaginehow9occupiedIbecameraisingfourboysonmyown.Ourhomewasacompletezoo﹣﹣﹣joyouszoo.NotsurprisingIneverdid10itbacktocollegefull﹣time.11Inevergaveuponthedreameither.Ihadonlyonechoicetofindaway.Thatmeant12asfewasoneclasseachsemester. Thehardestpartwasfeeling13aboutthetimeIspentawayfromtheboys.Theyoftenwantedmetostayhomewiththem.There14weretimeswhenIwantedtoquitbutIknewIshouldsetan15forthemtofollowthroughtherestofheirlives. In2006IgraduatedfromtheUniversityofNorthCarolina.Ittookmeover21yearstogetmy16degree! Iamnotspecialjustsingle﹣minded.Italways17methatwhenyou'relookingatabigchallengefromthe18itlookshugebutwhenyou'reinthemidstofititjustseemsnormal.Everythingyouwantwon'tarriveinyourlifeononeday.It'sa19.Rememberlittlesteps20bigdreams. 1A.dreamer B.graduate C.mother D.lawyer 2A.humorous B.attractive C.intelligent D.amazing 3A.delivered B.possessed C.developed D.produced 4A.withdraw B.escape C.drop D.free 5A.cancel B.reach C.wait D.start 6A.ambition B.deal C.dream D.conclusion 7A.ecological B.psychological C.physical D.biological 8A.accompanied B.followed C.involved D.engaged 9A.fully B.mostly C.hardly D.busily 10A.return B.give C.make D.get 11A.Or B.So C.Though D.But 12A.changing B.taking C.shifting D.setting 13A.concerned B.guilty C.determined D.angry 14A.withcertainty B.bycoincidence C.atrandom D.incase 15A.goal B.motivation C.example D.image 16A.graduate B.doctor C.master D.bachelor 17A.dawns B.strikes C.occurs D.sticks 18A.upside B.middle C.outside D.inside 19A.process B.life C.choice D.destiny 20A.turnto B.addto C.buildup D.addupto
IwashavingagreatmorninguntilIsatdowninfrontofmyofficecomputer.Yourpasswordhasexpired过期aservermessageflashedonmyscreenwithinstructionsforchangingit. Comingupwithanewcodedoesn'tseemlikeabigdealunlessyouworkatmycompanywherewehavetochangeitmonthlyusingatleastoneuppercasecharacteronelowercasecharacteronesymbolandonenumeral.Ohandthewholedarnthingcan'tbefewerthaneightcharacters.AndIcan'tuseanyofthesamepasswordsI'veusedinthepastthreemonths. SuddenlyIwasfurious.Whatdidn'tmakeitanybetterwasthatIwasdeeplydepressedaftermyrecentdivorce.DisbeliefoverwhatshehaddonetomewasallIthoughtabout.Everyday. Myangerdidn'tmeananythingtotheemptyinputfieldwithapulsatingcursor闪动的光标waitingformetotypeapasswordthatI'dhavetore﹣enter﹣manytimes﹣forthenext30days.IrememberedatipI'dheardfrommyformerboss.He'dsaidI'mgoingtouseapasswordtochangemylife. Icouldn'tfocusongettingthingsdoneinmycurrentmood.TherewereclearindicatorsofwhatIneededtodotoregaincontrolofmylifebutIcouldn'tnoticethem. Mypasswordbecametheindicator.MypasswordremindedmethatIshouldn'tletmyselfbeavictimofmyrecentbreakupandthatIwasstrongenoughtodosomethingaboutit. ImademypasswordForgive@h3r. Ihadtotypethisstatementseveraltimesaday.Eachtimemycomputerwouldlock.Eachtimemyscreensaverwithherphotowouldappear.EachtimeIwouldcomebackfromeatinglunchalone.InmymindIwroteForgivehereveryday. ThesimpleactionchangedthewayIlookedatmyex﹣wife.Thatconstantreminderofreconciliationledmetoacceptthewaythingshadhappenedattheendofmymarriageandembraceanewwayofdealingwithmydepression.AsthemonthworeonIfeltaslowhealingbegintotakeplace.BythetimemyserverpromptedmetoresetmypasswordthefollowingmonthIfeltfree. OnemonthlatermydearExchangeserveraskedmeyetagaintoresetmypassword.IthoughtaboutthenextthingthatIhadtogetdone. MypasswordbecameQuit@smoking4ever. Iquitsmokingovernight.ThispasswordwasapainfulonetotypeduringthatmonthbutdoingithelpedmetoyellatmyselfinmymindasItypedthatstatement.Itmotivatedmetofollowmymonthlygoal. OnemonthlatermypasswordbecameSave4trip@thailand. GuesswhereIwentthreemonthslaterThailand. Seeinghowtheseremindershelpedtomaterializemygoalskeptmemotivatedandexcited.Whileit'ssometimesdifficulttocomeupwithyournextgoalkeepingatitbringsgreatresults. Hereisasimplifiedextractofwhatsomeofmypasswordshavebeeninthepasttwoyearssoyougetanideaofhowmylifehaschangedthankstothismethod Forgive@h3rTomyex﹣wifewhostarteditall. Quit@smoking4everItworked. Save4trip@thailandItworked. Eat2times@dayItneverworkedstillfat. Sleep@before12Itworked. Ask@her4dateItworked.Ifellinloveagain. No@drinking2monthsItworked.Ifeelbetter. Get@c4t!Itworked.Ihaveabeautifulcat. MovE@togeth3rItworked. Facetime2mom@sundayItworked.ItalkwithMomeveryweek. AndtheoneforlastmonthSave4@ringYep.Lifeisgonnachangeagainsoon. 1Theunderlinedwordfuriousinthethirdparagraphisclosestinthemeaningto. A.depressed B.doubtful C.nervous D.angry 2WhydidhedecidetouseForgive@h3rashispassword? A.Becausehedecidedtoforgivehiswife. B.Becausehehopedhiswifewouldforgivehim. C.Becausehehopeditwouldremindhimtobestrong. D.Becausehisformerbosstoldhimtouseittochangehislife. 3WhatcanwelearnfromthepasswordSave4@ringforlastmonth? A.Hewillcallhismothereveryweek. B.Hewillsoonaskhisgirlfriendtomarryhim. C.Hispasswordwillhelphimsavemoney. D.Hewillberemindedtosavehispassword. 4Whatmightbethebesttitleforthepassage? A.HowaPasswordChangedMyLife. B.WhyIChangedMyPassword. C.HowaSlowHealingTookPlace. D.HowIFollowedMyMonthlyGoal.
AshleyC.FordaNewYorkCitywriterrecentlyappealedtoher66000Twitterfollowers.Acoolthingyoucandotodayistotrytofindoutwhichofyourlocalschoolshavekidswithoverdue过期未付的lunchaccountsandpaythemoff. Childrenfromthepoorestfamiliesgetfreeorreduced﹣pricebreakfastandlunch.Butsomestruggletopayevenreducedprices.SomeoftheIOUs借据comefromkidswhosimplyforgettheirlunchmoneyorparentswhocanaffordtopaybutneglecttokeepprepaidaccountsuptodate. PeoplearoundthecountryhavebeeninspiredbyAshleyC.Fordtodonatemoneytopayoffdebtsowedbyparentsthatcanfollowkidsthroughouttheirschoolcareers. ItreallyhithomeformesaidKristinaArwoodwholaunchedacampaignthatraised﹩20000topaylunchdebtsinherregion.Igrewuponfreeandreduced﹣pricelunchesbuteventhat40centswashardtogettogetherwithfourkids.ThereweretimesIwouldn'teatbecauseIdidn'thavemoney. Theeffortdrewsomecriticismfrompeoplewhosaidsomeofthemoneyisowedbyparentswhocanaffordthe﹩2.50forlunchbutlettheiraccountsrunintothered.Buttheresponsehasbeenmostlypositive. It'sunrealistictothinkdonationsaregoingtofixthisproblemforallschooldistrictssaidDianePratt﹣Heavnerspokeswomanfortheassociation. Fordsaidherrealaimwastoinspireabiggerwaveofcommunitygiving.ShesaidItwasjustoneideaanotherschoolmightneedhelpwithuniformsortutoring.Thepointwastodosomethingthathelpspeopleinyourcommunity. 1Kidswithoverduelunchaccountsmaybethose. A.whorefusetobringtheirlunchmoneytoschool B.whoseparentsareunwillingtopaytheaccountsinadvance C.whosefamilyfailtopayfortheirmealsevenatreducedprices D.whowouldhavethedebtsfollowthemthroughouttheirschoolyears 2WhichofthefollowingstatementsaboutthecampaignlaunchedbyAshleyC.FordisRIGHT? A.Itcouldsolvetheproblemofschoolchildrenfailingtopaytheirmeals. B.Itreceivedwidesupportandcriticismfromsomepeopleaswell. C.ItraisedenoughmoneytocovertheIOUsinallschooldistricts. D.Italsofocusedonhelpingkidswiththeirschooluniforms. 3WhatdidKristinameanbysayingItreallyhithomeformeinParagraph4? A.Shewasrathersurprisedatwhatthekidsexperienced. B.Shefeltasifshewerestrickenbythekids'sufferings. C.Shefelttouchedbecauseofhersimilarexperiencesinchildhood. D.Herfamilyweresufferingbecauseofherdonationtothecampaign. 4WhatisAshleyC.Ford'srealaimtoappealtoherTwitterfollowerstodonatetothekids? A.Toensurethatthegovernmentgetuniversalfreemealsforallstudents. B.Toarousepeople'sconcernaboutthosewhoneeduniformsortutoring. C.Toraiseenoughmoneytopaythelunchdebtsinalltheschools. D.Toencouragemorepeopletotakeactiontohelpthoseinneed.
氮元素是植物生长的必需元素合理施用氮肥可提高农作物的产量．回答下列问题． 1植物细胞内在核糖体上合成的含氮有机物是在细胞核中合成的含氮有机物是叶绿体中含氮的光合色素是． 2农作物吸收氮元素的主要形式有铵态氮NH4+和硝态氮NO3﹣．已知作物甲对同一种营养液以硝酸铵为唯一氮源中NH4+和NO3﹣的吸收具有偏好性NH4+和NO3﹣同时存在时对一种离子的吸收量大于另一种．请设计实验对这种偏好性进行验证要求简要写出实验思路预期结果和结论．
假定你是学生会__李华下周你所在学校要接待来自英国的交换生.请你代表学校写一篇欢迎辞要点如下 1.表示欢迎2.介绍活动安排3.表达愿望. 注意1.词数80左右2.可适当增加细节以使行文连贯.
热门题库
更多
高一下学期物理
高三下学期数学
高三上学期数学
高一下学期英语
教案备课库
高一上学期生物
高一下学期生物
高二上学期数学
高二上学期物理
高二上学期英语
高二上学期生物
高二下学期数学
高二上学期化学
高二下学期物理
高三下学期物理
高三上学期物理
, 
, 或 ,不确定
，焦距为2，则线段AB的长是（ ） A.
B.
2
湘公网安备 43130202000226号