首页
试卷库
试题库
当前位置：
X题卡
>
所有题目
>
题目详情
“低碳生活，绿色出行”是我们倡导的一种生活方式，有关部门抽样调查了某单位员工上卜班的交通方式，绘制了如下统计图： （1）样本中的总人数为 ，开私家车的人数m＝ ．扇形统计图中“骑自行车”...
查看本题答案
包含此试题的试卷
教案备课库《》真题及答案
点击查看
你可能感兴趣的试题
低碳生活作为一种生活方式是一种态度和习惯
绿色环保低碳生活已经从一句口号逐步演变为人们身体力行的日常行动低碳生活代表着更健康更自然更安全同时也
①③
②③④
③④
①②③④
生态江西绿色南昌要努力打造低碳城市倡导低碳生活低碳生活是一种低能量低消耗低排放的生活方式下列属于低碳
购物时尽量使用塑料袋
晚上习惯把家里所有的灯都打开
倡导使用可充电式电池
用餐时倡导使用一次性筷子和餐盒
阅读下面材料按要求答题低碳生活是一种更健康更自然更安全可持续的生活方式但低碳生活的观念还没有深入人心
在南昌市红谷滩新区人们可免费租借自行车出行这是当今倡导低碳生活的一种具体体现．低碳生活是指生活作息时
对控制全球变暖的不利措施是
倡导低碳的生活方式
大力发展火电
倡导绿色的生活方式
积极植树造林
在南昌市红谷滩新区人们可免费租借自行车出行这是当今倡导低碳生活的一种具体体现低碳生活是指生活作息时所
党的十九大报告指出倡导简约适度.绿色低碳的生活方式反对奢侈浪费和不合理消费开展创建节约型机关.___
绿色家庭
绿色学校
绿色社区
绿色城市
绿色出行
倡导简约适度绿色低碳的生活方式反对奢侈浪费和不合理消费开展创建节约型机关等行动
绿色家庭
绿色学校
绿色社区
绿色出行
低碳生活是一种生活方式更是一种环保责任下列不属于低碳生活的是
人出行乘坐公交车
电脑屏幕调得暗一些
使用太阳能热水器
使用一次性纸杯
低碳生活lowcarbonliving是指生活作息时所耗用能量要减少从而减低碳特别是二氧化碳的排放低
为了使同学们加深对低碳生活意义的认识宣传委员向同学们介绍了下面的材料请你根据材料的内容完成以下问题材
倡导简约适度绿色低碳的生活方式反对奢侈浪费和不合理消 费开展等行动
绿色家庭
绿色学校
绿色社区
创建节约型机关
绿色出行
低碳生活就是返璞归真地去进行人与自然的活动我们每一个人 都应当培养一种健康自然的低碳生活方式
倡导的生活方式开展创建节约型机关绿色家庭绿 色学校绿色社区和绿色出行等行动
奢侈浪费
简约适度
不合理消费
绿色低碳
今年6月5日是新环保法实施后的第二个环境日主题是践行绿色生活.旨在增强公民环保意识采取低碳节俭的生活
低碳生活是一种低能量低消耗低排放的生活方式下列属于低碳生活方式的是
购物时尽量使用塑料袋
晚上习惯于把家里所有的灯都打开
倡导使用可充电式电池
用餐时倡导使用一次性筷子和餐盒
倡导简约适度绿色低碳的生活方式反对奢侈浪费和不合理消 费开展创建节约型机关_____等行动
绿色家庭
绿色学校
绿色社区
绿色城市
绿色出行
在南昌市红谷滩新区人们可免费租借自行车出行这是当今倡导低碳生活的一种具体体现.低碳生活是指生活作息时
我们积极倡导低碳生活低碳生活是一种低能量低消耗的生活方式指生活中所耗用能量要减少从而降低碳特别是二氧
购物时自带环保袋，减少使用塑料袋
晚上习惯将家里每个房间的灯都打开
每天上学由家长开车接送
用餐时习惯使用一次性筷子和餐盒
热门试题
更多
如图是国家统计局今年4月11日发布的2018年3月到2019年3月全国居民消费价格的涨跌幅情况折线图．注2019年2月与2018年2月相比较称同比2019年2月与2019年1月相比较称环比根据该折线图下列结论错误的是
WhenOliverSacks82diedonAug30athishomeinNewYorkCitytheworldwassaddenedbythelossofabrilliantneurologist神经学者andatrulybeautifulmind. London﹣bornSackswasmostfamousforhiswriting.AForbesobituary讣告callshimoneofthegreatestwritersofscienceofthepast50years.Maybethegreatest. Inhisbest﹣selling1985bookTheManWhoMistookHisWifeforaHatSacksdescribedamanwhocouldnottellthedifferencebetweenhiswife'sfaceandhishatbecausehisbrainhaddifficultytellingwhathesaw. In2006Discovermagazinerankeditamongthe25greatestsciencebooksofalltimedeclaringLotsofneuroscientistsnowlookingintothemysteriesofthehumanbraincite列举thisbookastheirgreatestinspiration/ His1973bookAwakeningsisaboutagroupofpatientswhowerefrozeninadecades﹣longsleepuntilSackstriedanewtreatment.Thebookledtoa1990movieinwhichSackswasactedbyRobinWilliams.Itwasnominated提名forthreeAcademyAwards. AnotherbookAnAnthropologistonMarspublishedin1995describedcaseslikethatofapainterwholosthiscolorvisioninacaraccidentbutfoundnewcreativepowerinblack﹣and﹣whiteimages.Sacksalsowrotethestoryofa50﹣year﹣oldmanwhosuddenlyregainedsightafternearlyalifetimeofblindness.Theexperiencewasadisaster.Theman'sbraincouldnotmakesenseofthevisualworld.Afterafullandrichlifeasablindpersonhebecameaverydisabledandmiserable悲惨的sightedmanSackswrote.Whenhewentblindagainhewasrathergladofit. DespitethedramaandunusualstoriesSacks'bookswerenotmeanttobefreakshows.OliverSackshumanizesillness…hewritesofbodyandmindandfromeveryoneofhiscasestudiesthereshowsafeelingofrespectforthepatientandfortheillnessRoaldHoffmannaNobelPrize﹣winningchemistsaidin2001. WhenSacksreceivedtheLewisThomasPrizeforsciencewritingin2002thecitation荣誉状declareduSackspressesustofollowhimintounknownareasofhumanexperienceandforcesustorealizeoncetherethatwearefacingonlyourselves. 1ThefollowingstatementsarewrongEXCEPT. A.TheManWhoMistookHisWifeforaHatwasrankedamongthe25greatestsciencebooks B.AnthropologistonMarsledtoamovieinwhichSackswasactedbyRobinWilliams C.Sacksrecordedamanwhoregainedsightafteralifetimeblindness D.Awakeningsisoftencitedbyneuroscientiststoprovethemysteryofhumanbrain 2WhywasSackscalledoneofthegreatestwritersofscienceoverthepast50years? A.HewasborninLondonandmostfamousforhiswriting. B.Hewroteaseriesofbookstheinfluenceofwhichwasgreat. C.Hewasabrilliantneurologistandhadatrulybeautifulmind. D.HereceivedtheLewisThomasPrizeforsciencewritingin2002. 3Whichofthefollowingistrueaccordingtothepassage? A.OliverSackslosthiscolorvisioninacaraccident. B.OliverSackswontheNobelPrizein2002. C.Awakeningswasfilmedin1973inwhichRobinWilliamsactedasSacks. D.OliverSacksshowedrespectforhumanityinhisbooks. 4Thepassageismainlyabout. A.theawardsOliverSacks'won B.thelifeexperiencesofOliverSacks C.theinfluenceofOliverSacks'works D.thereasonswhyOliverSackssucceeded
随着教育信息化2.0时代的到来依托网络进行线上培训越来越便捷逐步成为实现全民终身学习的重要支撑．最近某高校继续教育学院采用线上和线下相结合的方式开展了一次300名学员参加的“国学经典诵读”专题培训．为了解参训学员对于线上培训线下培训的满意程度学院随机选取了50名学员将他们分成两组每组25人分别对线上线下两种培训进行满意度测评根据学员的评分满分100分绘制了如图茎叶图 1根据茎叶图判断学员对于线上线下哪种培训的满意度更高并说明理由 2求50名学员满意度评分的中位数m并将评分不超过m超过m分别视为“基本满意”“非常满意”两个等级． i利用样本估计总体的思想估算本次培训共有多少学员对线上培训非常满意 ii根据茎叶图填写下面的列联表 并根据列联表判断能否有99.5%的把握认为学员对两种培训方式的满意度有差异 附K2＝
Lifegettingyoudown?Learntobounceback Thatwhichdoesnotkillusmakesusstronger.Nietzschesaid.Thereareanumberofwaysthatcangetusthroughtoughtimeshelpustobouncebackandmakeushappier.1. Findsomethingyoucancontrol. 2Buttakingsmallpositivestepsinanyareaofourlifecanhavearippleeffectenablingustomoveforwardintheproblemarea. 3. Asaspecieswetendtofocusonwhat'swrongratherthanwhat'sright.Butwecanbenefitalotfrompayingattentiontowhat'sgoingright.Psychologistshaveshownconsciouslyfocusingonthesegoodthingshelpstoincreaseourexperienceofpositiveemotions. Checkyourthinking. 4LeadingpsychologistMartinSeligmanfoundthatthewayweinterpretthecausesofeverydaysetbackscanhaveasignificantimpactonourabilitytocopeandourphysicalhealth.Healsoshowedwecanlearnmoreresilient有弹性的thinkingstyles. Distractyourself. Whenwearetrappedinaproblemitishardtothinkcreativelyaboutwaystodealwithit.Itoftenhelpstotaketimeoutfromthethingsyouareworryingabout.5Notonlydoesthisgiveusabreakfromwhatwe'redoingandourworriesit'salsogreatforourminds. A.Alwaysdosomethingthatisright. B.It'struethattherearelotsofthingswecan'tcontrol. C.Aneffectivewayoftakingtimeoutisexercise. D.Nexttimeyouarefeelingstressedorstuckgivethematry. E.Focusonwhat'sright. F.Nexttimesomethinggoeswrongforyoupauseforamoment. G.Thewaywethinkcandestroyourownresilience.
随着材料科学的发展金属钒及其化合物得到了越来越广泛的应用并被誉为“合金维生素”．工业上回收废钒催化剂含有V2O5VOSO4及不溶性残渣科研人员最新研制了一种离子交换法回收钒的新工艺回收率达91.7%以上．该工艺的主要流程如图1所示 已知部分含钒物质在水中的溶解性如下表所示 请问答下列问题 1工业上由V2O5冶炼金属钒常用铝热剂法其化学方程式可表示为．2滤液中含钒的主要成分写化学式． 反应①的离子方程式． 3萃取和反萃取过程中所需的主要玻璃仪器为．若反萃取使用硫酸用量过大进一步处理会增加填化学式的用量造成成本增大． 4该工艺反应③的沉淀率又称沉钒率是回收钒的关键之一写出该步发生反应的离子方程式．“沉淀”过程中沉钒率受温度氯化铵系数NH4Cl的质量与调节pH之后的料液中VO3﹣的质量比等的影响其中温度与沉钒率的关系如图2所示温度高于80℃沉钒率降低的可能原因是． 525℃时取样进行试验分析得到钒沉淀率和溶液pH之间关系如下表 pH 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 钒沉淀率% 88.1 94.8 96.5 98.0 98.8 98.8 96.4 93.1 89.3 结合上表在实际生产中③中加入氨水调节溶液的最佳pH值为．若矾沉淀率为93.1%时不产生FeOH3沉淀则溶液中cFe3+＜． 已知25℃时Ksp[FeOH3]＝2.6×10﹣39 6废钒催化剂中V2O5的质量分数为6%原料中的所有钒已换算成V2O5．取100g此废钒催化剂按上述流程进行实验当加入105mL0.1mol•L﹣1的KClO3溶液时溶液中的钒恰好被完全处理假设以后各步钒没有损失则该工业生产中钒的回收率是．
在△ABC中角ABC的对边分别是abc且． 1求角A的值 2若求△ABC的面积．
ThehugeT﹣rex霸王龙bendsoveralargetriceratops三角龙lyingonhissidebelow.WithitsmouthopenwidetheT﹣rexlooksreadytokillthetriceratopswithafinalbitetothetriceratops'sneck.ThedisplaywillbefoundattheNationalMuseumofNaturalHistory. ThemuseumhassoughtahugeT﹣rexskeleton骨架formanyyears.Beforeitusedamodelofone.ButmuseumdirectorKirkJohnsonsaysthatwasnevergoodenough.It'sbeenkindofdeeplyembarrassingtobethenationalmuseumandNOThaveaT﹣rexhesaid.TheT﹣rexdisplayisnowthecenterpieceofthemuseum'snewestshowwhichwillbeavailabletothepubliconJuly15. ThatT﹣rexnamedSuewasfoundinSouthDakota.Officialsatthemuseumbuiltaspecialareafortheskeleton.ItincludesagiftstoreofallthingsrelatedtoSue.SueevenhasherownTwitteraccountandamediapresentationofherlifestory. InmoderntimesmovieslikeJurassicPark侏罗纪公园havehelpedgrowdinosaurinterestforanewgenerationofyoungfans.ButsuchmoviesdescribetheT﹣rexesasmostlyhugestupidanddangerousanimalswhicharetruethreatinthefighting:quickintelligentandaggressivehuntersingroups. 1WhatisdescribedinParagraph1? A.HowaT﹣rexhuntsinthewild. B.HowaT﹣rexwillbedisplayedinamuseum. C.HowaT﹣rexispaintedinapicture. D.HowaT﹣rexisfilmedinamovie. 2WhatdoweknowabouttheT﹣rexskeleton? A.ItwasfoundinAustralia. B.Ithasbeenopentothepublic. C.Itisvaluedbythemuseum. D.Itisstillamodelone. 3Whatcanbeinferredfromthelastparagraph? A.Moviesaboutdinosaursshouldbereduced. B.Theyounggenerationdislikesdinosaurs. C.TheT﹣rexisakindofhugestupiddinosaur. D.Somemoviesaremisleadinginaway.
已知集合A＝{123}B＝{x|x+1x﹣3＜0x∈Z}则A∩B＝
如图网格纸上的小正方形的边长为1粗线条画出的图形为某几何体的三视图则该几何体的外接球表面积为
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.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Λ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. Iwasgoinghomebybikeinacoldafternoonwhenmybikebrokedown.AsIwaswonderinghowtodoanoldmancameover.Heofferedtohelpmeandsoonmybikerepaired.Ithankedhimbutaskedhowtorewardhim.Sheshookhisheadandthentoldmeastoryabouthowaboyhadhelpedhimtwoyearbefore.Hisstorymovedmedeep.Ilookedatthemanwithmyeyesfillingwithtears.Ineverthoughthecouldkeepsuchalittleincidentinthemindforyears.OnlythendoIbegintobelievethatonegoodturndeservesanother.
在直角坐标系xOy中直线的参数方程为t为参数0≤α＜π以坐标原点为极点以x轴的非负半轴为极轴建立极坐标系曲线C的极坐标方程为ρ2﹣6ρcosθ﹣8ρsinθ+21＝0已知直线l与曲线C交于不同的两点AB． 1求直线l的普通方程和曲线C的直角坐标方程 2设P12求|PA|2+|PB|2的取值范围．
化学与生活密切相关下列有关说法错误的是
已知数列{an}满足n+1an＝nan+1a2＝4等比数列{bn}满足b1＝a1b2＝a2则{bn}的前6项和为
已知直线与抛物线Cx2＝4y相交于AB两点O为坐标原点则三角形OAB的面积为
钛22Ti铝合金在航空领域应用广泛．回答下列问题 1基态Ti原子的核外电子排布式为[Ar]其中s轨道上总共有个电子． 2六氟合钛酸钾K2TiF6中存在[TiF6]2﹣配离子则钛元素的化合价是配体是． 3TiCl3可用作烯烃定向聚合的催化剂例如丙烯用三乙基铝和三氯化钛做催化剂时可以发生下列聚合反应nCH3CH＝CH2该反应中涉及的物质中碳原子的杂化轨道类型有反应中涉及的元素中电负性最大的是．三乙基铝是一种易燃物质在氧气中三乙基铝完全燃烧所得产物中分子的立体构型是直线形的是． 4钛与卤素形成的化合物的熔沸点如下表所示 分析TiCl4TiBr4TiI4的熔点和沸点呈现一定规律的原因是． 5金属钛有两种同素异形体常温下是六方堆积高温下是体心立方堆积．如图所示是钛晶体的一种晶胞晶胞参数a＝0.295nmc＝0.469nm则该钛晶体的密度为g•cm﹣3用NA表示阿伏伽德罗常数的值列出计算式即可．
已知25℃时KbNH3•H2O＝1.8×10﹣5．该温度下用0.100mol•L﹣1的氨水滴定10.00mL0.100mol•L﹣1的一元酸HA的溶液滴定过程中加入氨水的体积V与溶液中的关系如图所示．下列说法不正确的是
将函数fx＝sin2x+φ0＜φ＜π的图象向右平移个单位长度后得到函数的图象则函数fx的一个单调减区间为
已知函数fx＝|2x+m﹣1|+|2x﹣3|． 1当m＝2时求不等式fx≤6的解集 2若fx≤|2x﹣6|的解集包含区求m的取值范围．
Ifyouwearglasseschancesareyouaresmarter.ResearchpublishedinthefamousBritishjournalNatureCommunicationshasfoundthatpeoplewhodisplayedhigherlevelsofintelligencewerealmost30percentmorelikelytowearglasses. Thescientistsstudiedthegenesofthousandsofpeoplebetweentheagesof16and102.Thestudyshowedintelligencecanbeconnectedtophysicalcharacteristics.Onecharacteristicwaseyesight.In3outof10peoplewhoweremoreintelligenttherewasahigherchancetheyneedglasses.Scientistsalsosaidbeingsmarterhasotherbenefits.Itisconnectedtobetterhealth. Itisimportanttoremembertheseareconnectionswhicharenotprovencauses.Scientistscallthiscorrelation.Justbecausesomethingisconnectedtosomethingelsedoesnotmeanoneofthosethingscausedtheother.Andit'sworthnotingthatwhatconstitutes构成intelligenceissubjectiveandcanbedifficultifnotimpossibletomeasure. Forgetgenesthough.Plentyofproofshowswearingglassesmakespeoplethinkyouaremoreintelligentevenifyoudonotneedglasses.Anumberofstudieshavefoundpeoplewhowearglassesareseenassmarterhard﹣workingandhonest.Manylawyersusethisideatohelpwintheircases.LawyerHarveySlovisexplainedthis.Glassessoftentheirappearancehesaid.Sometimestherehasbeenahugeamountofproofshowingthatpeoplehewasdefendingbrokethelaw.Hehadthemwearglassesandtheyweren'tfoundguilty. GlassesarealsousedtoshowsomeoneisintelligentinmoviesandonTVIdeasaboutpeoplewhowearglasseshavebeguntoshift.Peoplewhodonotneedglassessometimeswearthemforfashiononly.Theywanttolookworldlyorcool.Butnoteveryoneisimpressedbythisideathough.GQmagazinesaidpeoplewhowearglassesforfashionaretryingtoohardtolooksmartandhip时髦的.Howeverthathasn'tstoppedmanycelebrities名人fromhappilywearingglasseseveniftheydonotneedthem.JustenBieberisjustonehigh﹣profilefanoffashionglasses. 1Whatdoesthenewstudyshow? A.Peoplewearingglassesaresmarter. B.Peoplewearingglassesarehealthier. C.Wearingglassescanmakepeoplecleverer. D.WearingglassesisassociatedwithhigherIQ. 2WhatdoestheunderlinedwordcorrelationinParagraph3mean? A.Shift. B.Link. C.Proof. D.Consequence. 3Whydosomelawyersasktheirclientstowearglassesincourt? A.Becauseitcancreateamoralimage. B.Becauseitcanmisleadthewitnesses. C.Becauseitcanhighlightclients'qualities. D.Becauseitcanprovetheclients'innocence. 4Whatisthegeneralattitudetothosewhowearglassesforfashion? A.Positive. B.Negative. C.Mixed. D.Indifferent.
已知椭圆的离心率为椭圆上的点到右焦点F的距离的最大值为3． 1求椭圆C的方程 2若椭圆C的右焦点F作倾斜角不为零的直线l与椭圆C交于两点MN设线段MN的垂直平分线在y轴上的截距为t求t的取值范围．
ForalongtimeIthoughtapresentandagiftwerenodifferent.Igrewupinahouseholdwherepresents1specialoccasionssaytherewerealwayspresentsforChristmasandourbirthdays. SowhenImarriedGarywhodidnotgivepresentsona2basisIhadtomakeanadjustment.Garydidnotwhollyavoidgift﹣givingthough.3noticinghowmanyhoursIspendonthe4hebroughthomeashoulderpad垫肩forthetelephonereceiver.Butmostlyhe5holidaysletaloneshopforearringsto6tomeshowinghisaffection. Itriedtochangehim7.IboughtbooksforhisbirthdaysandknittedhimhatsandsweatersforChristmas.8IbegantotellhimwhatIwantedgiving9instructionsbutgotnowhere. Lastyearwhenthesnowstorm10ourtownandhewasonbusinessIusedhispresent﹣roadscraper铲土机to11bothourdriveandourneighbor'sthinkinghow12earringswouldhavebeen.GaryhadwiselychosennotthethingI13butthethingthatheknewIwouldneed. I14begantounderstandthedifferencebetweenapresentandagift.Apresentisjustathing.Butagiftisbroaderandoftencannotbe15.Itisasmallactofkindnessthe16tobendtoanother'sneedsthesacrificeoftimeandeffort.17isagift.Anyexpressionofitfreelygivenisan18fromtheheartthatisimmeasurablybetterthanapresent. MyinsistenceonpresentsmusthaveseemedtoGaryalackof19.forthegiftshehadbeengivingallalongbutheneverstoppedgivingthem. GarywillbehomethisChristmasbutIdon't20apresent.Ialreadyhavethegreatestgift. 1A.marked B.involved C.expressed D.displayed 2A.daily B.rare C.temporary D.regular 3A.Therefore B.Once C.Then D.Besides 4A.gardening B.cooking C.telephone D.Internet 5A.missed B.hated C.abandoned D.ignored 6A.serve B.refer C.present D.relate 7A.bytradition B.byforce C.byexample D.bychance 8A.Yet B.Even C.Thus D.Still 9A.useful B.simple C.specific D.interesting 10A.struck B.disappeared C.melted D.passed 11A.clearup B.tearup C.buildup D.speedup 12A.priceless B.useless C.weightless D.colorless 13A.valued B.prepared C.preserved D.desired 14A.eventually B.definitely C.simply D.totally 15A.obtained B.discovered C.measured D.observed 16A.happiness B.willingness C.wisdom D.freedom 17A.Love B.Passion C.Insistence D.Motivation 18A.sharing B.offering C.following D.experiencing 19A.desire B.concern C.preparation D.appreciation 20A.purchase B.order C.expect D.evaluate
过双曲线的右焦点F作垂直于x轴的直线交双曲线于AB两点若△OABO为坐标原点为等腰直角三角形则该双曲线的离心率为
下列关于有机物的叙述正确的是
曲线y＝x+1ex在点01处的切线方程为．
TopMusicFestivals Festivalseasonisjustkickingoffandthereisalottolookforwardtointheupcomingmonths. FireflyMusicFestival Manypeoplehaven'tthoughtofgoingtoDelawareforasummervacationbutmid﹣Juneisagreattimetoplanthistripifyoulovemusic.Headlinersforthisyear'sshowareTheWeekendMuseTwenty﹣OnePilotsChancetheRapperandBobDylan. Date:June15﹣182017 Location:DoverDelawareUSA MusicType:Rock Price:＄79﹣＄2499 RoskildeFestival ThisDenmarkmusicfestivalhasbeenalocaltraditionsince1971.Therewillbeninestagesforthisyear'seventstohostgroupsliketheFooFightersBlink182andTheLumineers.What'sinterestingaboutthisfestivalisthatinadditiontothebigheadlinersyoucanalsogettoknowup﹣and﹣comingregionalartistsfromDenmarkSwedenandNorway. Date:June24﹣July12017 Location:RoskildeDenmark MusicType:Rockemergingregionalartists Price:DKK995﹣DKK1995around＄144﹣＄289 SecretSolstice WithlongdarkandcoldwintersnobodycelebratessummerquitelikeIcelanders.ToseeforyourselfplanatriptoIcelandthisJunetocheckouttheSecretSolsticefestival.NotonlywillyouenjoyseeingbandslikeRadioheadandAfrikaBambaataabutyoucanalsoexperiencetheother﹣worldlylandscapesandgeothermal地热的springsnearbyaswell. Date:June15﹣182017 Location:ReykjavikIceland MusicType:EclecticIndie Price:€149﹣€1599around＄160﹣＄1725 MontrealJazzFestival AlljazzloversoweittothemselvestocheckouttheMontrealJazzFestivalatleastonceinalifetime.ThiseventbringstogethersomeofthebestnamesinjazzmusicaswellasdiverseR&Bfunk骤停打击乐andsoulartists. Date:June28﹣July82017 Location:MontrealQuebecCanada MusicType:JazzR&BSoulFunk Price:＄27.25﹣＄210.25 1Whatiscommontothemusicfestivalsmentionedinthetext? A.TheyareheldinEurope. B.Theirmusictypesarerockandhip﹣hop. C.Theyaregivenintheopenair. D.Theytakeplaceinsummer. 2WhatcanweinferaboutDelawarefromthetext? A.Itisthecityofmusic. B.Itisnotasummerdestination. C.ItisthehomeofBobDylan. D.Itisacityofhighexpense. 3WhatisthepurposeofIcelanderstoholdtheSecretSolsticefestival? A.Towelcomesummer. B.Tomemorizethepastwinter. C.Tocelebratethecomingofspring. D.Toadvisethelocalbeautifullandscapes.
WhenMr.WangaChinesecalligraphy书法masterandpainterinvitedmetohisstudioIgotextremely1delight.Whatatreat! Hisapartmentdoublesashisstudio2hecreatescalligraphyworksandpaintingsaswell.Thelivingroomhasalongdeskwithacollectionof3brushofvaryingsizestwobiginkpotsandapairofpaperweights. Mr.Wangshowedhislatestworkascroll卷轴oftheGreatWallatBadaling4winditswayalongthesteephillswhich5recognizeasaWorldHeritageSitebytheUnitedNationsin1987.Thebeautyoftheseven﹣meter﹣longscrollpaintingwasbeyond6describe. Hetoldmesomeonehadofferedalargeamountofmoneyforthepaintingbutherefused7partwithitashewantedtodonatetotheNationalMuseum. AfterthatMr.WanginvitedmetopracticecalligraphyanditwasthefirsttimethatIhad8trueexperiencedthebeautyoftheline.Itwasthen9InoticedMr.Wangappearedtohaveahealthybody.Iwonderedifpracticingcalligraphykepthimsofit.Whetherthatistrueonethingiscertain;asMr.Wangput10Onlydoonethinganddoitwell﹣﹣﹣that'sthesecrettosuccess
Earlierthismonthastudyshowedthatbeescanteachthemselvestoplayfootball.Theycanlearnbywatchingandratherthancopywhattheyhaveseenchangeittomakeitbetter.Beesalsohaveaclevertrickforhelpingtheirfriendsfindlunch.Newresearchshowsthatbeesleavesmellylittlefootprintsonflowersthathelpthemknowwhatflowerstheyandtheirfamilymembershaverecentlyvisited. ThediscoverywasmadebyscientistsfromUniversityofBristolwhoreportthesesmellyfootprintshelpbeesdistinguishbetweentheirownscent气味thescentofarelativeandthescentofastranger.Andbyusingthisabilitybeescanimprovetheirsuccessatfindinggoodsourcesofafoodandavoidflowersthathavealreadybeenvisitedandminedofnutrients. TheBristolteamperformedthreeseparateexperimentswithbumblebees大黄蜂inwhichtheywererepeatedlyexposedtorewardingandunrewardingflowersatthesametimethathadfootprintsfromdifferentbeesattachedtothem.Eachflowertypeeithercarriedscent﹣marksfrombumblebeesofdifferingrelatednessorwereunmarked.Themarkswereeitherthebee'sownmarkssistersfromtheirnestorstrangersfromanothernest. Thestudyshowsthatnotonlycanbumblebeestellthemarksoftheirownnestmatesfromstrangersbuttheycanalsodiscriminatebetweenthesmelloftheirownfootprintsandthoseoftheirnestmatesisterswhichcouldhelpthemtorememberwhichflowerstheyhavevisitedrecently.Butitdoesn'texplainhowtheyusethatinthewild.Theymaydetectthefootprintsoftheirfriendsandkeepmovingonsincethatflowermaybetappedout.Ortheymaysmellabitoffamiliarfootsmellanddiveinseeingitasamarkerthatnectar花蜜ispresent. 1WhatcanweinferaboutbeesinParagraph1? A.Theyaresmartlearners. B.Theyhavestrongfamilyties. C.Theyenjoysmellyfootprints. D.Theylikeplayingtricksonothers. 2WhatdoesthisabilityinParagraph2referto? A.Findinggoodsourcesoffood. B.Followingotherbees'footprints. C.Tellingthesmellsoffootprintsapart. D.Recognizingdifferenttypesofflowers. 3Whatcanwelearnfromthefindingsoftheexperiments? A.It'seasierforBumblebeestorecognizetheirfriends. B.It'sunclearhowbumblebeesusetheirabilityinthewild. C.Bumblebees'memorycanbesignificantlyimproved. D.Bumblebees'footprintscangivethemasenseofidentity. 4Whatisthemainideaofthetext? A.Differentflowersattractdifferentbees. B.Beeshaveanewtrickofsurvivinginthewild. C.Bumblebeesmaysmellfootprintstokeeptrackoffood. D.Bumblebeescangiveoffuniquescentstoattractothers.
如图是部分短周期元素原子用字母表示最外层电子数与原子序数的关系下列说法正确的是
已知函数fx＝ex1﹣ax﹣x2． 1求fx的单调区间 2若x≥0fx≤1求实数a的取值范围．
如图在四棱锥P﹣ABCD的底面ABCD为矩形点P在底面ABCD的射影O落在AD上． 1求证平面PAB⊥平面PAD 2若OM分别是ADPB的中点且求三棱锥M﹣PDC的体积．
热门题库
更多
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
高一下学期数学
教案备课库
高一上学期数学
高一上学期化学
教案备课库
教案备课库
湘公网安备 43130202000226号