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让我的父母非常满意的是,从这个公寓的餐厅可以俯视街对面的世纪公园,从起居室也可以.(so)
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高三下学期英语《》真题及答案
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如图①这是一个正方体毛坯将其沿一组对面的对角线切去一半得到一个工件如图②对于这个工件如果截面为正顶则
a，b
b，d
a，c
a，d
23.阅读下面的材料按要求作文巴尔蒙特说我来到这个世界为的是看太阳和蔚蓝色的原野我来到这个世界为的是
我曾修过一条铁路使它运行它与时间赛跑我曾修过一条铁路如今它已建成兄弟能给我一角钱吗从这首美国20世纪
①②④
①③④
①②③
②③④
下列标点符号使用有错误的一项是
我到十岁的时候，读的是“孟子见梁惠王”。
他家对面二三十米处有一个网吧，每次放假他都会跑去玩一玩，对此他的父母非常担忧。
一个国家谁在看书？看哪些书？在某种意义上说，决定了这个国家的未来。
《枣核》选自《美国点滴》(《萧乾选集》第二卷)，有改动。
就我们学生而言这个安排是非常令人满意的
22.阅读下面的材料按要求作文巴尔蒙特说我来到这个世界为的是看太阳和蔚蓝色的原野我来到这个世界为的是
步行街两侧商业建筑利用有顶棚步行街安全疏散时步行街两侧建筑相对面的最近距离均不应小于建筑设计防火规范
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阅读下面的作品完成小题从头再来埃特加·凯雷特以色列我有个好父亲我知道自己很幸运不是每个人都有个好父亲
商业步行街两侧的建筑需利用步行街进行安全疏散时步行街两侧的建筑相 对面的最近距离不应小于规范对相应高
6.0
9.0
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从这个时代起我国以及整个东方文明逐渐从世界上领先的繁荣的地位而转向落后与衰落西欧则从这时逐渐超过了东
12—13世纪
14—16世纪
17—18世纪
19—20世纪
所办业务一时难以以答复时可以说
我非常理解您的心情, 请您不要着急, 我们会尽快查证清楚, 给您一个满意的答复。
对不起, 请先留下您的联系方式, 我在××日内联系您。
我办不了, 没办法
要不您找领导去
薛某男9岁小学三年级学生班主任发现薛某这个学期成绩退步很快经常不交作业还喜欢和老师唱反调上星期发现薛
“你能把自己的真实感受表达出来，非常棒。”
“你觉得你的爸爸妈妈把工作看得比你重要，你感觉到非常的失落。”
“父母很多时候就是这样，忙于工作就忽略了自己的孩子。我非常理解你。”
“我建议你换一个角度来看这个问题。”
在一个父母因孩子学校生活适应困难而求助的案例中学生在老师介绍下接受社会工作者的协助学生的父母因为感觉
潜在服务对象；实际服务对象
潜在服务对象；现有服务对象
实际服务对象；潜在服务对象
实际服务对象；自愿型服务对象
民间有所谓嫁出去的女儿泼出去的水的说法关于该说法不正确的是
就继承关系而言，女儿不因出嫁而丧失法定继承人的资格，只要女儿没有丧失继承权的情形，女儿仍然可以继承父母的遗产。从这个角度看，该说法也是错误的
女儿出嫁，与其配偶组成新的家庭，女儿对其配偶乃至其子女就应当负有一定义务，从而在一定程度上限制了女儿对父母赡养义务的履行，从这个角度看，该说法也没有道理
女儿出嫁，与其配偶组成新的家庭，但是不因婚姻关系的产生而解除与父母之间的赡养扶助关系，从这个角度看该说法错误
这句话体现了婚姻关系,继承关系
修改下面的一个病句我两次看见他从这个工厂走出来我才知道这个热心帮助病人的老人原来是个工人
句子翻译1.我非常爱我的父母_______________2.这是我家的一张照片__________
通过餐厅服务员的服务可以让客人达到满意的目的
热情
娴熟
主动
周到
步行街两侧商业建筑利用有顶棚步行街安全疏散时步行街两侧建筑相对面的 最近距离均不应小于建筑设计防火规
10
9
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23.阅读下面的材料根据要求写一篇不少于800字的文章俄国诗人巴尔蒙特说我来到这个世界为的是看太阳和
名著片断阅读于是我就像一个没有头脑的傻瓜一样进行起造船的工作我对于这个计划非常满意再也不去研究一下它
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8分WecanvideochatwithastronautsaboardtheInternationalSpaceStationandwatchlivefootagefromthefrozenheightsofEverest.Butcommunicatingwithasubmarine潜艇oradiverisnotsoeasy.Thelackofpracticalmethodsforsharingdatabetweenunderwaterandairbornedeviceshaslongbeenafrustrationforscientists.Thedifficultystemsfromthefactthatradiosignalsworkperfectlyinairtravelbutpoorlyinwater.Sonar声呐signalsusedbyunderwatersensorsreflectoffthesurfaceofthewaterratherthanreachingtheair. NowresearchersatMIThavedevelopedamethodwiththepotentialtorevolutionizeunderwatercommunication.Whatwe'veshownisthatit'sactuallyfeasibletocommunicatefromunderwatertotheairsaysFadelAdibaprofessoratMJT'sMediaLabwholedtheresearch. TheMITresearchersdesignedasystemthatusesanunderwatermachinetosendsonarsignalstothesurfacemakingvibrations震动correspondingtothelsandOsofthedata.Asurfacereceiverthenreadsanddecodesthesetinyvibrations.TheresearcherscallthesystemTARF.Ithasanynumberofpotentialreal﹣worldusesAdibsays.Itcouldbeusedtofinddownedplanesunderwaterbyreadingsignalsfromsonardevicesinaplane'sblackboxanditcouldallowsubmarinestocommunicatewiththesurface. Rightnowthetechnologyislow﹣resolution.TheinitialstudywasconductedintheMITswimmingpoolatmaximumdepthsofaround11or12feet.ThenextstepsfortheresearchersaretoseeifTARFisworkableatmuchgreaterdepthsandundervaryingconditions﹣highwavesstormsschoolsoffish.Theyalsowanttoseeiftheycanmakethetechnologyworkintheotherdirection﹣airtowater. Ifthetechnologyprovessuccessfulinreal﹣worldconditionsexpecttextingwhiledivingtobethelatestunderwaterfashion. 1WhatdoestheauthormainlytalkaboutinParagraph1? A.Thefutureofvideochatunderwaterandinair. B.Thefrustrationsofdevelopingunderwaterdevices. C.Thedifficultyofcommunicationfromwatertoair. D.Thecurrentsituationofcommunicatingwithasubmarine. 2Whatdoestheunderlinedwordfeasiblemean? A.Achievable. B.Convenient. C.Changeable. D.Alternative. 3WhatdoweknowaboutTARF? A.Itiswidelyusedtofinddownedplanes. B.Itcanworkwellatgreatdepthsunderwater. C.Itisanunderwatermachinethatsendssignals. D.Itcansendreceiveandreadsignalsfromunderwater. 4Whatisthebesttitleforthetext? A.TheReal﹣worldUsesofSonarTechnology B.FullWater﹣to﹣airCommunicationClosertoReality C.ABreakthroughintheApplicationofVideoChat D.TARFBecomingaNewMeansofCommunication
8分Plasticisusedtomakealargenumberofproductsweuseeverydaysuchasdrinkandfoodcontainerstrashbagsandgrocerybagscupsandchildren'stoysandbottlesforeverythingfrommouthwashandshampootoglasscleaneranddishwashingliquid.Andthat'snotevencountingalltheplasticthatgoesintofurnitureappliancescomputersandautomobiles. Astheuseofplastichasincreasedovertheyearsit'sbecomealargepartofAmerica'ssolidwaste﹣growingfromlessthan1percentin1960tomorethan13percentin2017.AsanexampleofhowandwhyplasticwasteisincreasingtheInternationalBottledWaterAssociationreportsthattheUSconsumed9.67billiongallonsofbottledwaterin2017comparedto9.1billiongallonstheyearbefore.TheUnitedStatesistheworld'sleadingconsumerofbottledwater.Agoodfirststepinreducingplasticwasteisswitchingtoareusablewaterbottle. Recyclingplasticreducestheamountofenergyandresources资源neededtocreateplastic.Researchshowsthatabottleofwaterrequiresabout2000timesasmuchenergytoproduceasthesameamountoftapwater.Recyclingplasticproductsalsokeepsthemoutoflandfills垃圾填埋andallowstheplastictobereusedinmakingnewproducts.Recycling1tonofplasticsaves7.4cubicyardsoflandfillspace.Andlet'sfaceitalotofplasticendsupdirectlyintheenvironmentbreakingdownintotinypieces?pollutingoursoilandwater. Today80percentofAmericanshaveeasyaccesstoaplasticrecyclingprogram.Auniversalnumberingsystemforplastictypesmakesiteveneasier.AccordingtotheAmericanPlasticsCouncilmorethan1800USbusinesseshandleplasticwaste.Inadditionover200000grocerystoresnowserveasrecyclingcollectionsitesforplasticwaste. 1Whatmessagedoesthefirstparagraphmainlyintendtoconvey? A.Plasticproductsarequitecommon. B.Plasticiswidelyusedinourdailylife. C.Whatfunctionsplastichas. D.Whyhumansmakeuseofplastic. 2Accordingtoparagraph2. A.plasticwasteisontheriseinAmerica B.Americanspreferbottledwatertotapwater C.plasticwasteistheleadingtypeofwasteinAmerica D.usingreusablewaterbottlesdoesn'thelpreduceplasticwaste 3Whatbenefitdoesrecyclingplasticmainlybring? A.Ithelpscutdownonpollution. B.Ithelpstomakesoilmorerich. C.Itmakesplasticeasilybrokendown. D.Itproducesnewenergyandresources. 4Whatdothefigureslistedinthelastparagraphsuggest? A.Americanssufferalotfromplasticwaste. B.Americansaregoodatrecyclingplastic. C.RecyclingplasticisconvenientintheUS. D.RecyclingplasticbringsgreatprofitsintheUS.
高铁酸钾K2FeO4是一种新型高效多功能水处理剂．K2FeO4为紫色固体微溶于KOH溶液．K2FeO4具有强氧化性在酸性或中性溶液中迅速产生O2在碱性溶液中较稳定．某学习小组设计了下面的实验制备K2FeO2并探究其性质． 一K2FeO4的制备 该小组用如图所示装置制备K2FeO4夹持装置略． 1以上装置图中有一处明显的错误请你帮助指出来．B中应盛装的试剂是． 2写出A中发生反应的离子方程式． 3C中发生的反应有Cl2+2OH﹣＝Cl﹣+ClO﹣+H2O还有生成K2FeO4的反应．写出得到紫色固体K2FeO4的化学方程式． 二性质探究 用KOH溶液充分洗涤C中所得固体得到固体物质K2FeO4． 4絮凝实验甲同学取少量K2FeO4加入浑浊的泥浆水中发现产生气体搅拌浑浊的泥浆水很快澄清．请结合方程式说明K2FeO4的净水原理． 5乙同学取少量K2FeO4向其中滴入稀盐酸发现产生黄绿色气体．产生黄绿色气体的原因可能是． 6丙同学取少量K2FeO4向其中滴入MnSO4和适量H2SO4的混合溶液振荡后溶液呈紫色丙同学认为氧化性FeO42﹣＞MnO4﹣．请你设计一个实验验证丙同学的结论是否正确．
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TheflowersarebloomingandthebirdsaresingingasMelindasitsintherosegardenofthenursinghome.Sheisrecallingoldtimesasshewaitsforherfamily'sarrival.ThenursinghomehasbeenMelinda'snewsettlementeversinceThomaspassedawayaweekago.Thomashadfoughtalongandhardbattleagainstlungcancerforthreeyears.UnfortunatelyhehasbrokenthepromisethatheandMelindahadmadetobewitheachotherforeverybirthday.Melindaknewthiswasunrealistic不现实的butagreedtothepromiseforThomas'ssake. ThomasyouarecompletelyadreamerMelindashoutedtoThomasashedraggedonaboutlivingonanislandwithhisbeautifulwife.That'swhatshelovedabouthimmost﹣hehadavividimagination.Theygotmarriedatageeighteenandbeganhavingchildrenrightaway.MarycamewithintheyearfollowedbyThomasBenjaminIILilly﹣AnnandJosephLittleJoeyGeorge.Thefamilylivedanexultantlifefilledwithlaughterandlove. Mom!Lillyshoutedbutitreallysoundedlikeahowl.Melindahadlostherselfinthinkingaboutthelifeshehadsharedwithherlatehusband.Lillypushedherdownthelongdarkhallsofthenursinghomeuntiltheyarrivedattherecreationalroom. WhenthedoorsopenedMelindaputherhandoverhermouthandwascompletelyspeechless. Theroomwascrowdedwiththepeoplenearestanddearesttoherandthewarmthandlovewasfeltinstantly.Thenightwentonstoriesandcocktailsweresharedandeverythingwasperfect. HoweverwhenMelindacaughtamomenttoherselfshelookedaroundatherfamily.WithasmileonherfacesheraisedherManhattanandcalledoutforatoast.ThisoneisforyouThomasthoughyouarenothere. 1WhydidThomasbreakhispromise? A.Hewasbusywithhiswork. B.Hediedoflungcancer. C.Hehadtoserveinthearmy. D.HestoppedlovingMelinda. 2WhichofthefollowingbestexplainsexultantunderlinedinParagraph2? A.Peaceful. B.Simple. C.Stressful. D.Happy. 3Whatcanweinferfromthelastparagraph? A.Melinda'childrenforgottheirfather. B.Melindawastiredofnoise. C.Melindamissedherhusbandbadly. D.Melindalikedtodrinkalcohol. 4Whatcanbeasuitabletitleforthetext? A.AParticularBirthday B.AWomanataNursingHome C.MemoriesofOldDays D.ABigSurpriseforMelinda
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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A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II处起不计分. Lastweekendlwentfishingwithmycousinsbyariverwherewastwomilesawayfrommyhomebybike.Whenwewereabouttoreturnforhomewefoundoneofourbikelost.Wewerereallynervousthen.Askingaboutthelostbikenobodytoldthetruthexceptme.Andtomysurprisemyparentsdon'tscoldme.Insteadtheysaidlwasahonestboy.Ihavebenefitedgreatfrommyfamilyrules.I'mnotthebestatschoolworkbutclassmatestrustmeandnearlyeveryoneiswillingtomakingfriendswithme.IthelpsmeknowbetteraboutHonestyisthebestpolicy.
Curiousaboutwhatbookswillbepublishedinthemonthsaheadsoyoucanpre﹣orderorreservethem?Pleasenotewehavenotincludedeverybookthatiscomingoutbutrathersomethatcaughtoureyes﹣andthatwethoughtshouldcatchyoursaswell. TheBigBraveAdventurousLifeofLaviniaWarrenbyElizabethRaum LaviniaWarrenneverletherheightpreventherfromleadingafullandadventurouslife.Althoughshenevergrewthreefeettallshebecameabelovedteacheraworldtravelleranentertainerandthefriendofmanypowerfulfigures.Laviniafacedseveraltragedies悲剧butalwaysfoundthestrengthtogoon.Lavinia'sextraordinarystoryalsoprovidesasocialhistoryofoneofthemostdifficultperiodsinAmericanhistory. TheDollhouseMurdersbyBettyRenWright Amyisterrified.Shehearsnoisescomingfromthedollhouseintheattic阁楼andthedollsshewasplayingwitharen'twheresheleftthem.EverynightwhenAmygoesuptocheckonthedollhouse?thedollshavemovedagain!SecretsbecomeclearasAmygetsclosertoshowingthemystery迷ofthedollsinthisnovelthatcombinescomplicatedfamilyrelationshipswithamystery. TheGirlintheLockedRoombyMaryDowningHahn Afamilymovesintoanoldabandonedhouse.Jules'parentslovethehousebutJulesisfrightenedandfeelsasenseofwarning.Whensheseesapalefaceinanupstairswindowthoughshecan'thelpwonderingaboutthepresenceonthetopfloor.ThenJulesisdeterminedtocontactthemysteriousfigureandhelpunlockthedoor.Pastandpresentintersect交叉assheandherghostlyfrienddiscoverthesecretofthefamilywholivedinthehouseallthosemanyyearsago. 1WhatmakesLaviniaWarrenimperfect? A.Herheight. B.Hershape. C.Herstrength. D.Hercharacter. 2WhatcanwelearnfromTheDollhouseMurders? A.Amyisfrightenedwhenhearingnoisesintheattic. B.Amycaresmorefordollsthananythingsheeverhas. C.Amyfindsittoughtosleepwithoutdolls'company. D.Amywillknowlittleaboutherfamilyrelationships. 3WhathappenswhenJulesseesapaleface? A.Shedarenottellherparentsallthatshesees. B.Sheremindsherparentsofthedangeratonce. C.Shemakesuphermindtohelpherfriendout. D.Shewantstoknowwhatexistsonthetopfloor.
已知函数fx＝|x+a|+|x﹣2|． I当a＝﹣3时求不等式fx≥3的解集 II若fx≤|x﹣4|的解集包含[12]求a的取值范围．
若非零向量满足则的夹角为
AnexcitinglandingprocessofChang'e﹣4lunarprobe月球探测器wasseenthroughthemonitoratBeijingAerospaceControlCenterinBeijingJan.32019.Ittoucheddownonthefarsideofthemoonat1026a.m.BeijingTimebecomingthefirstspacecraftsoft﹣landingonthemoon'sunknownsidenevervisiblefromEarth. China'sChang'e﹣4probehasstartedtheexplorationonthefarsideofthemoonthankstotherelaysatellitethatprovidesacommunicationlinkwithgroundcontrol.TherelaysatellitenamedQueqiaomeaningMagpieBridgeafteraChineselegend传说waslaunchedonMay212018andbecamethefirstcommunicationsatelliteoperatinginthehaloorbitnearly500000kmfromtheearth.Itcanalsoprovidecommunicationforprobesfromothercountries.Therelaysatellitewillalsobeusedforscientificandtechnologicalexperiments.ThemaximumdistancebetweenthesatelliteandtheChang'e﹣4probeonthefarsideofthemoonis79000km.ThesatelliteprocessesdatafromtheprobeandsendsittoEarth. Thesatellitecanstayinitsorbitforalongtimeduetoitsrelativelylowfuelconsumptionastheearth'sandmoon'sgravitybalancesitsorbitalmoving.Whileinorbititcanseeboththeearthandthefarsideofthemoon. TheconceptofusingarelaysatelliteinthehaloorbitwasfirstputforwardbyU.S.spaceexpertsinthe1960sbutwasrealizedbyChinesespaceengineers. Researchershopetousethecamerasonthesatellitetorecordasteroids小行星hittingthefarsideofthemoon.TocontrolthecostoftheChang'e﹣4probetherelaysatellitewasdesignedtoberelativelysmallweighingabout400kg. Researchershadjust30monthstodevelopthesatelliteputtingthemunderhighpressure.TopromotepublicinterestinspaceexplorationtheChinaNationalSpaceAdministrationinvitedpeopletowritedowntheirwishesforlunarandspaceexplorationandtherelaysatellitecarriesthenamesoftensofthousandsofparticipantsandtheirmessages. 1Whatdoweleamfromthesecondparagraph? A.TherelaysatellitewaslaunchedonJan.32019. B.Chang'e﹣4probewasthefirstcommunicationsatellite. C.Therelaysatelliteonlyexploresthefarsideofthemoon. D.TherelaysatellitecanhandledatafromChang'e﹣4probe. 2Whywasthesizeoftherelaysatelliterelativelysmall? A.Toreducethecostasmuchaspossible. B.TomakeitcircleMoonforalongertime. C.Toavoidbeingcrashedbyothersatellites. D.TofollowAmericanspaceexperts'advice. 3WhatmaderesearcherssufFerfromgreatstress? A.Fewpeopleinterestedintheexplorationonthemoon. B.Therelaysatellitecarryingtoomuchequipment. C.Theirlackingenoughtimetodeveloptherelaysatellite. D.People'sneverbeingoptimisticabouttherelaysatellite. 4Whatisthemainideaofthetext? A.ChinaisanewspacepoweraftertheUSA. B.Chang'e﹣4probelandsonMoon'sfarside. C.Chinesespaceengineersmakemuchprogress. D.Spaceexplorationisadangerouschallenge.
30分GreenbergwasaluckyguytoenterColumbiaUniversityonfullscholarship.ButjustbeforejunioryearGreenberg's1changed.Onedayhisvision2upandlaterhewasdiagnosed诊断withglaucoma青光眼.ThendoctorsoperatedonGreenberg'seyes.3thesurgerydidn'twork.Greenbergwasgoingblind.Hewasso4thatherefusedtoseeanyone. AsGreenberg'sbestfriendArthurpersuadedGreenbergtogobacktoColumbiaand5tobehisreader.Arthurread6tohimeverydaytakingtimeoutfromhisownstudyandGreenberg7scoringstraightA's.Stillhewas8aboutgettingaroundaloneandreliedonhisfriend. ThenoneafternoonGreenbergandArthurwenttoMidtownManhattan.WhenitwastimetogobacktocampusArthursaidhecouldn't9himbecauseofanappointment.Greenberg10TheyarguedandArthurwalkedoff11GreenbergaloneinGrandCentralTerminal. Greenbergwhowascompletely12stumbled蹒珊throughtherush﹣hourcrowd.HetookashuttletrainwesttoTimesSquareandthentransferredtoanuptowntrain.Fourmileslaterhe13attheColumbiaUniversitystop. Attheuniversity'sgatessomeone14him.Oopsexcusemesir.Greenberg15thevoice.ItwasArthur's.Greenberg'sfirstreactionwas16butinthenextsecondherealizedwhathehadjust17﹣andrealizedtoowhohadmadeitpossible.18Arthurhadbeenwithhimthewholewayusingoneofthemost19strategies. Blindnessdoesn'tmakeGreenbergfailtoappreciatethe20oflife.Healwayssaysheistheluckiestmanintheworld. 1A.faith B.attitude C.fortune D.reputation 2A.lit B.steamed C.cleared D.cheered 3A.Otherwise B.Moreover C.Therefore D.However 4A.shy B.desperate C.selfish D.nervous 5A.offered B.pretended C.happened D.learned 6A.letters B.newspapers C.textbooks D.magazines 7A.endedup B.carriedon C.imagined D.considered 8A.curious B.confident C.excited D.tentative 9A.abandon B.rescue C.comfort D.accompany 10A.compromised B.panicked C.explained D.apologized 11A.leaving B.finding C.consulting D.serving 12A.tired B.amused C.confused D.satisfied 13A.gotoff B.pulledover C.lookedaround D.ranaway 14A.turnedto B.shoutedat C.knockedinto D.quarreledwith 15A.raised B.lost C.controlled D.recognized 16A.anger B.pleasure C.relief D.sorrow 17A.missed B.questioned C.ignored D.achieved 18A.Gradually B.Finally C.Obviously D.Strangely 19A.brilliant B.familiar C.defensive D.complex 20A.magic B.beauty C.wisdom D.truth
已知三棱锥P﹣ABC的三条侧棱PAPBPC两两互相垂直且PA＝PB＝PC＝a则该三棱锥的外接球的体积为．
程序框图表示求式子23×53×113×233×473×953的值则判断框内可以填的条件为
设xy满足则z＝x﹣y
点P为双曲线C1和圆C2x2+y2＝a2+b2的一个交点且2∠PF1F2＝∠PF2F1其中F1F2为双曲线C1的两个焦点则双曲线C1的离心率为
Createdin1998byCaseyandShelleyBlacktheNorthernLightsWildlifeWolfCenterfocusesonnotonlyrescuingyoungabandonedwolvesbuteducatingthepublic.Unlikeothercentersyoucanactuallywalkwiththewolvesandhaveexcitinghands﹣oninteractionwiththemhere.Andsowegatheredonelatewintermorningtolearnprepareandwalk. ScrappyandFloraourwolvesthatdaywerebroughttothecenterwhenonlyafewdaysold.Theylivedinthehousewithusforthefirstseveralmonths.WetreatedthemlikehumanbabiesfedthemandsleptwiththemsaidShelley.Sotheyaretotallyusedtopeople.Howeverthesearewildanimals.ForthatreasonShelleyandCaseyexplainedthewalkistotallyonthewolf'sterms.Wedon'tapproachthembutiftheycomeuptouswecantouchthem. Withallthisinmindweheadedforthewoods.WewerewalkingonaloggingroadwhensuddenlyFloraall60poundsofherhurrieduptomeandraiseduponherlegs.Shewasalmostastallasme.Assheleanedinputherhugemuddypawsonmyshouldersandsniffedmyfaceapparentlyshewassayinghelloinwolftalk. WewalkedfarthermaybehalfamilewhileScrappyandFloradashedinandoutofthewoodsstoppingtooccasionallyrollinthesnowdigforthisorthatandjustplay.Thenweallheadedintothetreestoapicturesquestreamwherethewolvessplasheddrankandhadagreattime. Onecouldpointoutthatthiswholeadventurewasstagedandquiteartificial.ButthepurposeCaseyandShelleysaidistoexplainthewolves'placeintheenvironmentandprimarilytoletpeopleknowwolvesdon'thavetobeuniversallyfeared﹣theyreallydon'thidesecretlyinthewoodsjustwaitingtoeatpeoplebutthey'dratheravoidpeopleforthemostpart. 1HowistheNorthernLightsWildlifeWolfCenterdifferentfromothers? A.Ittrainsandeducateswildwolves. B.Itaimstorescueyoungabandonedwolves. C.Itraiseswolvesforcommercialpurposes. D.Itallowsvisitorstotakeawalkwithwolves. 2WhatcanbeinferredfromShelleyandCasey'sexplanationinParagraph2? A.Thewalkcanbepotentiallydangerous. B.Thewolveshavelostalltheirwildness. C.Peopleshouldgetclosetothewolvesactively. D.Thewolvescanreadpeople'smindlikehumanbabies. 3WhydidFlorabehavelikethatwhenshesawtheauthorontheloggingroad? A.Toexpresscuriosity. B.Toshowfriendliness. C.Toattractattention. D.Toseekcompanionship. 4WhydoCaseyandShelleyorganizesuchanadventure? A.Toadvertisethecenter. B.Topublicizewolfhunting. C.Topromoteenvironmentalprotection. D.Toclarifysomeconventionalviewsofwolves.
已知a1＝1an＝nan+1﹣ann∈N*则数列{an}的通项公式为．
10分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. LastmonthourclassorganizedahikingalongtheChaobaiRiverwhichrunthroughHebeiBeijingandTianjin.MuchtomydisappointIfoundtheriverwasseriouspolluted.AtthatmomentIwasdeterminedtodowhatIcouldprotectit.Firstundermyteacher'shelpIusedtheequipmentsfromtheschoollabtotestthequalityoftheriverwater.ButthenIusedthedataIhadcollectedittoanalyzethepollutionofthewater.FinallyIwriteareportonthepollutionoftherivertothelocalgovernment.IalsogaveapresentationinclasswhereIsuggestedthatwemustmakesmallchangestoprotectourwaterresources.
30分WhenCharlesBarkley'smotherpassedawayBarkley'shometowncametothefuneral.Butan1guestalsocame.Hewasn'tabasketballplayerorfromBarkley'shometown.More2hewasmydad﹣ascientist. Mydadsaidhe3aboutBarkleylongbeforehemethim.Wheneverwe4dinnerpartieshewouldtalkaboutBarkley.Basketballhasneverbeenmything.I5somekeywordsintoasearchengineto6somethingaboutBarkley.Heseemedprettyfamousand7notlikeanyonewhowouldbefriendswithmydad. Butthefriendshipwasreal. Mydad8madeaslideofphotosofhimandBarkleytogetherforourcommunity'sChineseNewYearparty﹣totallyirrelevanttothe9.Iaskedhimwhatmadethembecomefriends. AsanAsianintheU.S.wehadagood10hesaid.Weagreeonmanyviews. Theybelievedthecoloroftheirskindidn't11. ButonaSundayafternoonmydadpassedaway.Everyonewas12asBarkleyattended thefuneral.Itgivesmegreat13andjoytoknowIwasafriendofhisBarkleysaid.Justhearingabouthimatthe14whathehadachievedandwhathewastryingtohelpothers 15touchedmeI16hewouldbeknowntomanypeople. Atthefuneralpeople17memoriesofmydad.IrealizethatevenafterhepassedawayIwouldcontinueto18thingsabouthim. ThestoryofhisfriendshipwithBarkleywasnotjusta19withafamousperson﹣itthrewlightonthe20ofthisworld. 1A.frequent B.unexpected C.average D.unwelcome 2A.specifically B.importantly C.carefully D.strictly 3A.cared B.worried C.thought D.knew 4A.held B.organized C.attended D.arranged 5A.read B.forgot C.sent D.typed 6A.findout B.applyfor C.talkabout D.pickup 7A.potentially B.accidentally C.deliberately D.certainly 8A.still B.also C.even D.already 9A.experience B.holiday C.player D.friendship 10A.chance B.conversation C.argument D.choice 11A.bum B.differ C.matter D.shine 12A.astonished B.thrilled C.annoyed D.disappointed 13A.moments B.memories C.relief D.comfort 14A.meeting B.hometown C.party D.funeral 15A.accomplish B.contribute C.develop D.gain 16A.wished B.declared C.suspected D.confirmed 17A.improved B.refreshed C.shared D.lost 18A.spread B.leam C.obtain D.mourn 19A.connection B.coincidence C.phenomenon D.relationship 20A.benefits B.responsibilities C.possibilities D.varieties
25分假定你是李华你的新西兰朋友Terry没有进入学校唱歌比赛的决赛感到非常伤心.请你给他写一封email内容包括 1.表示安慰 2.给予鼓励 3.提出希望. 注意1.词数100左右 2.可以适当增加细节以使行文连贯.
设函数fx＝ax2+blnx﹣x已知曲线y＝fx在点1f1处的切线与直线x﹣y+1＝0垂直． 1求a的值 2求函数fx的极值点．
室温时用0.100mol•L﹣1AgNO3溶液滴定50.0mL0.0500mol•L﹣1NaCl溶液的滴定曲如图所示[pCl＝﹣lgCl﹣]．下列有关描述错误的是
在△ABC中角ABC所对应的边分别为abc且满足＝•＝3． Ⅰ求△ABC的面积 Ⅱ若b+c＝6求a的值．
已知集合B＝{y|y＝lgxx∈A}则A∩B＝
物质的结构性质和用途之间有着非常密切的关系．下列有关物质的性质与用途的因果对应关系错误的是
已知等比数列{an}满足an＞0n∈N+且a3•a2n﹣3＝4nn＞1则当n≥1时log2a1+log2a3+…+log2a2n﹣1＝
10分Makingabudgetcanbequiteasatisfyingprocess.Afterdrawingoneup?You'llprobablyfeelproudthatyou'vecontrolledyourfinances.Howeverdrawingupyourbudgetisn'tthemostimportanttaskwhenifcomestomanagingyourmoneysuccessfully.1. Ifyou'reoneofthemanypeopleinBritainwithmorethanonebankaccountusingseveralalongsideoneanothercouldhelpyoustayincontrolofyourspending.2.Thatcanhelpyouavoidoverspendinginasinglearea. 3keepaneyeonyouraccountseachmonth.Whetheryoureceiveyourregularbankstatementsandbillsthroughthepostoronlinemakesureyoucheckthem.Theycantellyouwhereyoumightbeoverdoingitandshouldinspireyoutocutbackimmediatelyifnecessary.Besidesyou'relikelytopickupanyproblemsastheyarise. Makinganoteofallyourspendingforafewweeksisanotherwaytocheckthatyourmoneyreallyisgoingwhereyou'dlikeitto.4butifyoutendtospendusingcashratherthanacreditcardyouwontbeabletotrackwhereyourmoneyisgoingsimplyfromlookingatyourbankstatementsandbills. Asyourpersonalcircumstanceschangeyourbudgetwillneedtobechangedtoo.5.Whileitmayseemlikeachancetoloosenupyourpursestringsslightlyfailingtotakeaccountofanincomeriseinyourbudgetcouldmeanyoudon'ttrulymakethemostofit. A.Ifyouwantyourbudgettostaybalanced B.It'lltakeafewmonthstogetusedtobudgeting C.Itmayseemtiresometowriteeverythingdown D.Divideupyourincomeeachmonthintoseparateaccounts E.Onceyou'velinkedallyouraccountsyoucancreateabudget F.Gettingapromotionorpayriseshouldmeanyouremakeyourbudget G.Thekeytoeffectivebudgetingisstickingtothespendingplanyou'vemade
工业废水中含有的Cr2O72﹣和CrO42﹣会对水体产生很大的危害因此这种工业废水必须净化处理．一种处理含铬废水的工艺流程如下 ①中反应为2CrO42﹣黄色+2H+⇌Cr2O72﹣橙色+H2O． 下列说法正确的是
如图直三棱柱ABC﹣A1B1C1中DE分别是ABBB1的中点． 1证明BC1∥平面A1CD 2设AA1＝AC＝CB＝2AB＝2求三菱锥C﹣A1DE的体积．
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