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  • 炎德·英才大联考2025届高二年级8月入学联考z物理考试试卷

    由题意知,光线在AB边恰好发生全反射,则θ等于临界角,由临界角公式,可得1sin 0(1分)解得n=2。(1分)(2)如图所示,光射到AB边上的F点,全反射到AC边上的EFA30°B点。由图可知DF-ADtan3O°=3L12(1分)FE=2DF=V6(1分)EG=ECsin60°=3L(1分)故光在介质中的传播距离s=DF+FE+E心=L(2分)光在介质中的传播速度v=£=C(1分)光在介质中的传播时间=s=√3L0(1分)15.解:(1)由题图可知,该简谐横波的周期T=12s(1分)由题意可知入+以=6m(n=0,1,23,…)(1分)24化简可得该波的波长入=4n千1m(1=0,1,2,3,…)(1分)2由公式一会可得该波的波速v一4n十m/s(=0,1,2,3,…)。(1分)(2)由图甲可得,质点振动的振幅A=4c,则质点做简谐运动的表达式为y1=4 sin wt(cm)(2分)其中w票-晋rad/s(1分)6得y=4sin若t(cm)。(1分)(3)由图乙可得,从1=0时刻开始,x=11m处的质点做简谐运动的表达式为y=4si血(否1-受)cm(2分)t=4s时,质点的位移y2=2cm(1分)所以质点在04s内通过的路程s2=6cm。(1分)16.解:(1)画出光路图如图所示,设光束在圆弧面上的入射角为i,由几何关系可知E·59·【23·G3DY(新教材老高考)·物理·参考答案一R一必考一N】

  • 炎德英才大联考 长郡中学2024届高三月考试卷(一)1地理试题

    (1)指出自博格达峰山顶至山麓依次出现的自然带和影响自然带更替的主要因素。(4分)(2分析博格达峰北坡积雪厚度大于南坡的原因。(4分)(3)一科考队欲攀登博凇达峰进行科光活动,请指出最佳攀登的季节,并分析原因。(6分)(4简述图中山脉对附近地区自然环境的有利影响。(4分)O27.(22分)阅读图文材料,完成下列问题。约旦(见下图)位于亚洲西部、阿拉伯半岛的西北部,国内常规能源紧缺,约96%的能源依赖进口。该国油页岩资源储量丰盆,但是此前一直未得到开发利用。油页岩炼油和发电足其主要的利用途径。在“一带一路”粥侣议推动下,由屮国、马来西亚和爱沙尼亚共同投资的阿塔拉特(距约旦首都安受南部120km)油页岩电站项目于2017年3月16日全而逃入投资建设实施阶段。该项目投产后可满足约旦10为15%的用电需求。35°E7黎地嫩叙利亚伊拉海约⊙安曼以死海沙特阿拉伯约O30N埃及图例⊙首都回水域照(1)分析该国油页岩资源一直来得到T发利川的原因。(8分)(2)简述油页岩资源发利用对该国的意义。(8分)(3)指出该国可开发的一种其他能源并说明理由。(6分)三.选考题,共10分。请考生从2道地理题中任选一题作答。如果多做,则每科按所做的第一题计分。28.【地理—选修3:旅游地理】(10分)K位于青海省海西察古族藏族自治州格尔木G315国道U型公路”(如图5所)因两边都是苍茫戈壁,黑色的路面随地势起伏,如丝带飞舞,各受旅行者青膝。近年来,大量游容在某李节前往该处旅游打卡,更有甚者坐在公路中间拍照,为此格尔木交警不断巡回提醒游客禁止在马路中间拍照。O第7页共8页

  • 炎德英才大联考 湖南师大附中2024届高三月考试卷(一)1语文试题

    选自2022年4月7日《凯男方四举措,促进学前教育均衡6.在促进学前教育发展方4%90.00%质》,有删改)概括说明。(6分)80.00%材料三:答:-70.00%60.00%近年来,南宁市聚焦“入园难“入园贵”难题出台得力举措,加大50.00%经费投入,跑出了学前教育发展“地度”,学前教育普及普惠程度有0840.00%效提升。(三)文学类文本阅读(本30.00%20.00%人究获人办回,曾是南宁市学前教有发展面临的难题,为阅读下面的文字,完10.00%,南宁市出台了公办亦国在园幼儿占比达标工作方室,设立相应的工材料一:0.00%2020美厨经费对?0D0年完成公办因在因幼儿占比50%目标任务的具盖率统计(区),由市级财玫给子一次性奖局0万元,且在究成月标任务的基础上每新增1个公办园学位,给予奖励2000元。这时张裕民和杨亮①斑斑点点铺在地上,洒在(%)《入国责”勇经是老百姓反映经烈的问题。如何引导更多民办团把是张裕民舅舅郭全的,他22收费降下来,南宁市出了“实招”。在发展多元普惠幼儿园工作中,该市子。杨亮从来没看见过这25在自治区奖补的基础上,市县积权养措资金,按幼儿园的星级,给予每生800元至1600元的奖补,奖补力度为全自治区之最。2014~2021年,南像一座大的宝盖,上边密54宁市、县(区)两级拔付的普惠幼儿园补助经费达6.97亿元肥硕的果实。54为突破幼儿园教师队伍建设的体制机制“瓶颈”,南宁市各县(区)杨亮每走过一棵树,14进行了深入探索。青秀区参考中小学教师“控制数”的做法,采用幼儿他就禁不住喜悦。他问道统计园“规模数”新举措,给予城区各公办园增核控制数编制。“差太远了。像今年行业发展现状及“以研促教、以教促赛、以赛促发展是我们提高幼儿园教师水的他们走了一阵,仍觉基础。”青秀区幼教专干、特级教师廖丹萍介绍说。南宁市构建起了在他们摘过果子的树下素市、县(区)、园三级联动的教研网络,通过“赛研训”教研模式,引领全他们把果子账算到努力构建覆盖城市幼儿园开展课程改革。目前,全市有6所幼儿园获批为自治区幼儿谈完的话:“在会上我当普及普惠安全优园课程改革基地、两个游戏案例代表广西入选教育部评选的全国幼儿出来了,通不过也是白费园优秀游戏活动案例。“你不是已经派了民以公办为主的原(选自《广西南宁:超九成幼儿园为普惠园》,有删改)“民兵也不敢全告诉办在园幼儿占比合理布点农村公4.下列对材料一相关内容的理解和分析(不正确的一项是(3分)()子,大义灭亲,死活只有A.改革开放以来,我国学前教育在数量和教学质量及管理方面,都“赵得禄是老村长了园集团化管理资有快速的发展和提高,但仍然存在着地区发展不衡的问题。这样的人也靠不住?"”力提升幼儿园园B2614~2020年,我国幼儿园数量一直保持增长势头,但同比增长“这人心里明白,就、教师发展一体率下降年份多于增长年份,这表明我国幼儿教育发展遇到瓶颈。?C.从统计结果来看,2016~2020年我国普惠性幼儿园在校人数及覆一个,也有人不愿意!”“要斗这个人,首先级实验区”工作,盖率均呈现逐年增长的趋势,其中2020年增长的幅度最大。√“老杨,老百姓的眼协同机制,建立D.从2020年的统计数据来看,我国幼儿园专任教师中,大专学历的么办嘛!”及试点校(园)带人数最多,占比超过一半;研究生学历的人数最少,占比最低。“千部不出头,咱们和小学教育发展5.下列对材料相关内容的概括和分机正确的一项是(3分)引导家长配合幼A凯里市为解决城区“入公办园难大班额”问题,按照公办在园私情。”吉游戏,省、州游戏为基本活动幼儿占比55%的目标任务,重新调整公办幼儿园布局规划2接着杨亮又鼓励了B.在解决“人公办园难”问题上,南宁市比凯里市做得更好,出实招,的人,他就更感到有依靠强幼儿园办实事,用数据说话,真正提高了学前教育普及普惠程度出一个办法来。他看到C.凯里市建立了幼儿园集团内部管理一体化、教师发展一体化、考亮便再走到郭全住的看施管理。这个老头有两撇八学看管核评价一体化的管理机制,有力促进了幼儿园优质均衡发展。D.我国学前教育发展的关键,不在于幼儿园的数量,而在于教学质量外的一个树根上,仿佛很教师队伍建设和园本课程建设无疑是其中最重要的两个方面。杨亮看见他膝前篮“这有什么用呢?”【学普模拟卷·2023届高三第一次·语文试题·第2页(共4页)】

  • 炎德英才大联考·长沙市一中2024届高三月考试卷(五)5语文答案

    不断迸发,创新源泉充分涌流。改革开放40周年的时间节点,交汇着历史与未来,影响着中国与世界。今天的中国,国家的现代化与民族伟大复兴,走的是一条改革开放之路。未来,中国仍然要靠“关键一招”赢得明天,中华民族伟大复兴必将在改革开放的进程中得以实现。16.依次填入文中横线上的成语,全都恰当的一项是(3分)A,顽强雄伟掷地有声众彩纷呈B.振奋澎湃掷地有声交相辉映C.振奋雄伟铿锵有力众彩纷呈D.顽强澎湃铿锵有力交相辉映17.文中画横线的句子有语病,下列修改最恰当的一项是(3分)A.激发改革激情、坚定改革壮志、唤起改革决心,啃硬骨头、闯难关、蹚险滩,在实践中求真知,推动改革航船行稳致远。B.唤起改革激情、坚定改革壮志、激发改革决心,蹚险滩、啃硬骨头、闯难关,在实践中求真知,推动改革航船行稳致远。C.唤起改革激情、激发改革壮志、坚定改革决心,闯难关、蹚险滩、啃硬骨头,在实践中求真知,推动改革航船行稳致远。D.坚定改革激情、激发改革壮志、唤起改革决心,闯难关、啃硬骨头、蹚险滩,在实践中求真知,推动改革航船行稳致远。18.下列在文中括号内补写的语句,最恰当的一项是(3分)A.无数劳动者渴望美好明天,用双手推动改革的进程,更书写下自己精彩的人生。B.无数渴望美好明天的劳动者用双手推动改革的进程,也书写下自己人生的精彩。C.无数渴望美好明天的劳动者书写下自己精彩的人生,也用双手推动改革的进程。D.无数劳动者渴望美好明天,书写下自己人生的精彩,也用双手推动改革的进程。阅读下面的文字,完成19-20小题。杜鹃鸟通常在二月份起就开始夜啼,古诗中有“”,年年二月起,它的凄厉悲切的啼声,时近时远。我住的地方附近,有一片树林,那一片树林,晨昏可听到各种鸟鸣,自然每年也少不了杜鹃的“不如归去”的鸣叫,夜半鹃啼大概也发自那里。据说杜鹃啼到吐血而死,三月份的“山蜘蹰”,有人叫“映山红”,更多人则叫它为杜鹃花,传说是因杜鹃啼叫吐血而亡后,这花便是它的血化成的。杜鹃鸟开始啼叫,正是各色杜鹃10

  • 炎德英才大联考 长沙一中2024届高三月考试卷(一)地理试题答案

    高三第一轮复周测卷教学读某岛屿图,完成7一8题」札记1315海拔/m≤12003004火山7.图中岛屿东西最长距离最接近A.100 kmB.200 kmC.300 kmD.400 km【解题分析】岛屿东西距离最长的地方大致位于38°N附近,跨越约3个经度。纬线圈的长度由赤道向两极递减,30°N纬线圈的长度为赤道周长×cos30°≈34640km,该处同纬度相邻两个经度的距离约为96.2km,38°N附近处相邻两个经度的距离略小于该数值,最接近300km。【答案C8.夏天岛屿西南部更为酷热,其主要原因是A.位于东北信风的背风坡B.位于中纬西风的背风坡C.受非洲大陆的影响D.受高盐度海水的影响【解题分析】岛屿西南部不位于信风带,不受东北信风的影响;位于中纬西风的迎风坡;该地位于非洲北部,夏季中结西风将非洲大陆干燥的气流带至岛屿西南部,因地形的阻挡而集聚,同时受副热带高气压带北移的影响,导致夏季该地更为酷热:岛屿位于地中海,但海水对气温具有调节作用,不是酷热的原因。【答案C下图为我国南方某市区域旅游规划图,观景台M、、之间有一条弯曲的“森林氧吧”路。据此完成910题。市区4500不9394e846图例\200一等高线/m森林盘观景台合别墅度假村9.图中甲处陡崖的最大高度可能是A.299mB.488mC.501mD.519m【解题分析】陡崖最大海拔范围的计算公式为:(n一1)×d≤陡崖的最大海拔<(n十1)×d,其中n代表相交等高线数量,d代表等高距。甲处陡崖有4条等高线相交,等高距为100m,计算得出该处陡崖相对高差为300~500m。【答案】B10.“森林氧吧”路呈“之”字形弯曲的主要目的是A.减少资金投入B.延长公路里程C.减缓道路坡度D.欣赏沿途风光【解题分析】公路距离延长,会增加资金投入;公路延长里程会增加资金投入和运行时间,因此不是主要目的;山区公路呈“之”字形,通过增加弯度延长距离,可以减缓坡度,“之”字形公路适用于陡峭斜坡;通过延长距离,增加行车时【24G3ZCJ(新教材老高考)地理-LJB-必考-YN】3

  • 炎德英才大联考·长沙市一中2024届高三月考试卷(六)6数学答案

    教学全国⑥0所名校单元测试示范卷札记所以V1-2sincos号+√1+2sin受os号=2sin号22.(12分)某学校为改善校园环境,在校区拟建一个扇环形状的花坛(如图所示),按设计要求扇环的周长为30米,其中大圆弧所在圆的半径为10米,设小圆弧所在圆的半径为x米,圆心角为(弧度).(1)求0关于x的函数关系式;(2)已知对花坛的边缘(实线部分)进行装饰时,直线部分的装饰费用为4元/米,弧线部分的装饰费用为9元/米,设花坛的面积与装饰总费用的比值为y,求y关于x的函数关系式,并求出y的最大值,解析:(1)由题可知30=(10十x)十2(10一x),解得0=10士2g,x0,10.10+x(2)花坛的面积为20102-2)=(5十x)(10-x)=-2+5x十50(0<<10),装饰总费用为90(10十x)十8(10-x)=170十10x,所以花茶尚同积与装作息费用约比位)=一0_x2-5.x-5010(17+x)令=17+1,27).则y器品+24)≤器0×2v孤=是当且仅当=18时取等号,此时一1,0品故花标的面积与装饰总费用的比位为y一0(0<

  • 炎德英才大联考·长沙市一中2024届高三月考试卷(六)6数学答案

    10.记数列a,的前n项和为S,已知S.=am2一4an十b,在数集(-1,0,1)中随机抽7取一个数作为a,在数集(一3,0,3)中随机抽取一个数作为6.在这些不同数列中随机抽取一个数列{a.),下列结论正确的是00广东Aa是等差数列的概率为}Ba是递增数列的概率为号writing to teel sorry to tCa是递减数列的概率为DS.≥5,a∈N)的概率为…作出投三、均isis a lette11.设点F为抛物线C:y2=2pz(p>0)的焦点,过点F斜率为k的直线!与抛物线Cwish to d13.产有问题这am sorry交于M,V两点(点M在第一象限),直线l交抛物线C的准线于点P,若M庐1=你但是尹高频结尾3FN-4,则下列说法正确的是乃1.IamIA.p=42.I wor14.3.I wc中B.F市+FM=01.11可以认则15.C.k=√3种状善D.△MON的面积为43(O为坐标原点)12.对于定义在R上的函数f(x),下列命题中正确的有刀16.A.若f(x)为奇函数,则f(x)·f(-x)<0B若Ya,bER,当a

  • 炎德英才大联考·长沙市一中2024届高三月考试卷(五)5英语答案

    第二部分阅读(共两节,满分50分)第一节(共15小题;每小题2.5分,满分37.5分)阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项。AWhere would you like to go for your New Year vacation?Here are the best ski resorts ofcomfort and joy during the holidays and the rest of the ski seasonKitzbuihel,AustriaThe most prized downhill on the ski racing calendar,Kitzbuhel also attracts a host offestive fans with its fairy lights,and performances of jazz bands.By day,you can enjoy 230kilometers of runs over the Kitzbuhel Alps,and fill up on hearty Tyrolean classic foods.Val Gardena,ItalyThis attractive valley is a New Year present waiting to be unwrapped.The three towns thatmake up Val Gardena-busy Ortisei,peaceful Santa Cristina and the higher Selva-traditionally go big on the festive season,combining their Italian,Austrian and Ladin heritage()The 175-kilometer skiing takes place below the towering Sassolungo mountain.Alpbach,AustriaAlpbach is often considered Austria's prettiest village.Low at 1,000 meters,it may notalways have snow on the ground.There are 91 kilometers of runs stretching up to 2,025 meterswith a beautiful spread of mountain huts.Stowe,VermontStowe will celebrate its 85th winter of lift service this season and it's a fine place to enjoyNew Year.The skiing,up the road at Stowe Mountain Resort,offers options for all levelsthrough forests from Mount Mansfield,the highest peak in Vermont.21.What can visitors enjoy in Kitzbuhel?A.Firework display.B.Lift service.C.Spicy food.D.Live music.22.What may attract visitors to go to Val Gardena during the festive season?A.The new year giftB.The beautiful hutsC.The diverse cultureD.The traditional industry.23.Which place may have a disadvantage for ski lovers?A.Kitzbuhel.B.Val Gardena.C.Alpbach.D.Stowe.英语试卷第4页(共12页)

  • 炎德英才大联考·长沙市一中2024届高三月考试卷(二)2英语答案

    第29期参考答案5.throw awayIl.I.tons of 2.According to 3.Even though第1版4.Compared with 5.at the time九年级上册Modules7一9交际过关I.BI.I-5 BFGEC重点语块语法过关A)1.决不:不可能2.跳高1 1-5 BBDBD3.从某一角度:从某一点上看:在某种程度上II.1.who /that talk too much4.顺便提·下5.好几千:成千上万2.(which/that)I visited6.每次:一次7.用手:靠手做3.that which makes you think8.一小段时间:一度:一时4.(who whom that)you talked with9.第一名:冠军10.事实上综合能力过关B)1.take pride in/be/feel proud of 2.stand for1.true 2.happy 3.worry 4.feeling 5.winning3.get into trouble 4.run away 5.pay for....6.means 7.fact 8.their 9.If 10.enjoy6.suffer from...7.make sense第5一6版8.wait and see 9.put up分册分段复综合能力评估试题10.stop sb.(from)doing sth.11.look through(九年级上册Modules7一12)12.compare ..to听力材料及参考答案九年级上册Modules10-12听力材料重点语块)在下列每小题内,你将听到一个或两个句子并A)1.许多:很多2.答案是:问题是看到供选择的A、B、C三幅图画。找出与你所听3.根据:按照:据…所说4.即使:尽管句子内容相匹配的图画。5.我们这就看看6.帆船7.那时:在那段时间1.My house is the second on the right.8.的确:当然:一定2.Tom brushes his teeth twice every day.B)1.protect..against...2.be in with a chance3.The weather is going to be windy tomorrow.3.throw away 4.keep a diary4.She is wearing a hat.It's green.5.keep sb./sth.away 6.brush sth.off sth.B)下面你将听到十组对话,每组对话都有一个问7.read out 8.compared with题。根据对话内容,从每组所给的A、B、C三个选9.be surprised at...10.cut sth.off sth.项中找出能回答所提问题的最佳选项。第3版5.M:Lucy,Tony told me Linda had an accident词汇过关yesterday.I.1.alive 2.excuse 3.suffered 4.pride 5.fixW:Oh dear.II.I.influenced 2.decision 3.borrowed6.W:Hello,I'm Claudia.I'm from Italy.Are you4.mainly 5.discussingfrom China?句子过关M:No,I'm from Japan.I.1.makes sense 2.looked through7.W:Hey,this man really looks like you.Is he3.By the way 4.pay for 5.stood forII.I.for a time 2.ran away 3.stop us (from)your uncle?M:Oh,no ..my uncle doesn't wear glasses.4.in a way 5.at a time 6.put up 7.first placeAnd my uncle is short and fat.8.by hand交际过关I.1-2CDⅡ.I-5 FGDAE8.M:I can't wait till summer.I love hot weather.语法过关1-5 CBCDC6-10 ACACCWhat about you?W:I don't really like hot weather.Autumn is my第4版词汇过关favourite time of year.It's beautiful.9.M:Mum.where is everybody?Why are they so1.brushed 2.Recently 3.divided 4.relativeslate for my party?5.singer 6.polluted 7.repeated 8.rushed句子过关W:Your sister has football practice until 6:00 pm.Grandma missed the bus,so your dad'sI.I.The thing problem isgoing to pick her up.2.keeping a diary to keep diaries10.W:So you've changed schools?3.surprised at /by 4.in with a chanceM:Yes.The school on our island is for six to

  • 炎德英才大联考·长沙市一中2024届高三月考试卷(二)2英语答案

    Text 5W:Mr.Smith,could you tell me how to improve my skills in English?M:You should regularly practice reading,writing,listening,and speaking,such as reading English magazines,practicing speaking English and listening to English news every day.Text6W:Brain,what are you doing this weekend?M:I'm thinking of taking a drive to the beach.Would you be interested in joining me?W:Sure,I would love to go with you.When are you leaving?M:At around 8:00 on Saturday morning.That will give us plenty of time to explore.There is a music festival onthe beach in the morning.W:Sounds great!I'll see you on Saturday.Thanks for asking me to go with you.Text 7M:Hello,Maria?It's Jack.I'm calling to cancel the appointment we scheduled.I've come down with a terrible flu,and I've already been out of work for a couple of days.W:I'm sorry to hear that,Jack.I hope you feel better soon.M:Thanks.And believe me,I wish I could make it,and I apologize for the inconvenience.W:It's not a problem.I just got over being sick a few days ago,so I know what you're going through.Shall wereschedule for next week,when you're feeling better?号卷·2023年高考最新原创信息试卷(二)·英语参考答案第3页共4页M:That'd be great!What day and time are you thinking?W:Does next Tuesday at nine work-maybe over breakfast?M:It sure does!I'll meet you at your office,if you'd likeText 8W:Bert,how was your summer vacation?M:Great!I visited my native village to meet my extended family there.My parents were with me,so it was huge fun.W:That's great.What types of fun activities have you done there?M:I have done lots of fun activities.I liked swimming in the pond most.My cousins have taught me to ride on thetree.Now I can climb any tree.W:That's cool.What have you enjoyed most?M:All the people are so heartwarming and they welcomed us with lots of love.You know,I visited myvillage after five years.So I found a lot of changes there.I have enjoyed the good changes and I loved meetingwith the local people.W:I am sure you had an amazing time.Text 9W:Good morning,Sam.Today I want to talk to you about educationM:I think it will be interesting.W:Yes,it will be.Do you know the importance of education in our life?M:I know a bit,but I'll be pleased if you share some more insights with me.W:Okay,let me share.Education is highly important for every type of person in society.Education can changelots of things.If you are not properly educated,you won't get any job easily.M:This is true.I have seen lots of unemployment around me and these are mostly due to lacking education.W:Yeah.If someone has got a proper education,it becomes much easier for them to learn a new skill.Thoughanybody can learn new skills through hard work,it is so easy for you when you are educated.That's why weall need to understand the importance of education.M:What should we do to let people know about this?W:Whoever living around you,you need to let them know some good sides of education.If they becomeeducated,they can change their life entirely.M:Thank you for your suggestion.I have understood and it was a really educative conversation for meText 10The traditional Chinese Dragon-Head-Raising Festival comes on the second day of the second lunar monthevery year.After the day,spring is coming and there will be more and more rains,because the Dragon King wakesup from its winter sleep and brings rain to the earth.It's the start of spring and farming,so it's an importantfestival with a long history in China.The most popular custom on the Dragon-Head-Raising Festival is cutting hair.If you cut hair on theDragon-Head-Raising Festival,luck and chances will always come to you in the year.So,on that day,there aremany people waiting for a haircut at the barber's.As the Chinese saying goes,your uncle will die if you cut yourhair in the first lunar month.According to the Chinese tradition,it's bad luck to cut hair during those days.So.people usually cut hair before the first lunar month and wait for the Dragon-Head-Raising Festival to cut again.On the Dragon-Head-Raising Festival,women can't do any sewing.As the dragon will raise its head to looktowards the earth,needles may hurt its eyes.In some places,people can't wash clothes because they are afraid ofhurting dragon's skin.号皋·2023年高考最新原创信息试卷(二)·英语参考答案第4页共4页

  • 炎德英才大联考·长沙市一中2024届高三月考试卷(二)2英语答案

    安2022-2023学年度下学期第19期mesN广版九年级养扫码听报2023年4月5日总主编刘兆义国内统一连续出版物号CN34-0030总第4213期社会服务与人际沟通

  • 炎德英才大联考·长沙市一中2024届高三月考试卷(二)2英语答案

    B.She advised Alena to study at homeC.She ensured Alena stodied at shool n1D.She forced Alena to lear high school subiecs25.What is the goal of the rown STEM Grl Foudato?A.To educate girls to go to collegeB To expose girls to the scientific fieldC.To promote the development of science.D.To inspire girls to become members of NASA26.Why does the author mention Alena's words in the last pragA.To ofier an apology.C.To make a suggestion.B.To make a request.27.Which words can best describe Alena?D.To offer an invitation.灵A.Honest and daring.B Modest and generousC.Talented and good-looking.D.Promising and caring.31茶CFeaturing cutting-edge equipment.new classrooms encourage creative thnknand的interest in the sciences among high-school students across the country.cordingtoareportGrowing up in a remote town in northwest China's Gansu Province,12-yearold school长girl Liao Wenting was almost open-mouthed when she found that the head-mounted displaysand robotics that she had seen in sci-fi films could be within arms'reach.Her school.locatedat the foot of rolling hills in a town of Wenxian County,has built a high-tech-empowered assroThe classroom with a little complex structure,covering 137 square meters,features maltimedia teaching systems,virtual reality (VR)headsets,3D printing equipment and otherhehigh-tech equipment.Students can also experience such technologies as augmented reality(AR),laser cutting and educational robotics.Its construction was completed in December 2022.Since then,the school has opened twoelective courses in the classroom,graphical programming and 3D printing.esch of which hasattracted 120 and 20 students respectively.The facilities were donated by the AllChina Journalists Association and a tech giant.It is the first such high-tech-empowered classroomGansu.Additionally,the enterprise will provide free training services for the school'stion technology teachers and organize regular scientific and technological competitions to movate youngsters and inspire continuous exploration in the field of technology.Ran Lingli,an information technology teacher in the school,thinks that the high-techempowered classroom,which allows students to have more handson experinthhigh-tech equipment,is aimed to stimulate their creativity."Iused to providethewthinstructions on how to use software like Word and Excel in my ass Howevernbuilt classroom,we mainly encourage students to explore their reativityand tu ther idinto reality.With access to resources like the 3D printer,students can bring theetheir minds to life,says Ran.Recently,Ma Feiya,a student in the school,had the opportunity touse theDpn【高三英语第5页(共0页)】578CC QING

  • 炎德英才大联考·长沙市一中2024届高三月考试卷(二)2英语答案

    31.Which is the best title for the passage?A.Nutritional Supplement:a new trend around the globeB.Nutritional Supplement:a cure-all solution to illnessesC.Nutritional Supplement:a great invention in 20th century曾补D.Nutritional Supplement:a fast-growing industry in conflicts0putanyA hitehhiking()robot's head was cut off in Philadelphia.A security robot was knocked toghthe ground in Silicon Valley.Another security robot,in San Francisco,was found covered withbarbecue sauce.anWhy are people so mean to robots?Agnieszka Wykowska,the chief editor of the InternationalinJournal of Social Robotics,said that while human aggression towards robots has different forms andasmotivations,it is similar to the ways that humans hurt each other.Robot abuse,she said,mightstresult from the tribal psychology of insiders and outsiders.a"The robot is in a different category than humans,"she said."So you probably easily getengaged in this psychological mechanism of social rejection because it's an out-group member.We areafraid of this thing that we don't really fully understand,because it's a little bit similar to us,but notquite enough.”ghAbuse of humanoid robots can be disturbing and expensive,but there may be a solution,said Ms.mWykowska.She told a story about robots being introduced to a kindergarten class."Kids have thisestendency of being very brutal(to the robot,they would kick the robot,they would be crueleirto it,they would be really not nice,"she recalled,"That went on until the point that the caregiverarestarted giving names to the robots.So the robots suddenly were not just robots but Andy,Joe andSally.At that moment,the brutal behavior stopped.So,it's very interesting because it's sort of likeegiving a name to the robot immediately puts it a little closer to the in-group."yWilliam Santana Li,the CEO of Knightscope,the largest provider of security robots in thedUnited States,shared a similar experience."When we go to a new place before we even unload therobot,the easiest thing to do is invite people to come meet them,have some naming contest and havea rational conversation about what the machine does and doesn't do.And after you do that,all isgood,l00 percent.”32.What is the author's purpose of writing the first paragraph?A.To blame human violence.B.To arouse sympathy for robots.C.To inform readers of the incidents.D.To raise the question of robot abuse.33.What is the cause of people's improper behavior towards robotsA.Pride.B.Anger.C.Fear.D.Curiosity34.What happens to robots after they are given names?A.They became unique.B.They became friendlier.C.They became more interesting.D.They became more like humans2023届高三高考模拟测试英语试卷(二)第6页(共10页)

  • 炎德英才大联考·长沙市一中2024届高三月考试卷(二)2英语答案

    参考答案第一部分1-5 CACCA 6-10 CBABC 11-15 BCCBA 16-20 BACBA第二部分第一节【A】【文本大意】本文是一篇应用文,文章主要介绍了一些室内和室外的休闲活动。21.D细节理解题。根据第一部分中的Monday,August8,4:30一8:30PM可知。22.B细节理解题。根据第二部分的Outdoor:Time for Twos可知,只有这个活动是户外的。23.A细节理解题。根据第三部分中的“All ages.”可知,这个活动没有年龄限制。【B【文本大意】本文是一篇记叙文,文章讲述了一个小镇上的独居农民在遭遇车祸受伤后,得到了其他居民的热情帮助。24.B细节理解题。根据第一段最后一句可知,Scott开车时为躲开小狗,突然改变方向而出了车祸。25.A推理判断题。根据第四段第一句和第五段第一句可知,Scott是个农民。26.A细节理解题。根据第四段可知,镇上的人们帮Scott整理家、修剪草坪、喂狗、收割大豆等。27.B推理判断题。根据最后一段最后一句可推知,Scott将来也会帮助那些需要帮助的农民。【C【文本大意】本文是一篇说明文,文章介绍了在菲律宾旅行的三种交通工具:轻轨系统、长途客车和吉普尼。要搞清自己的出行方式,弄清乘坐何种交通工具,需要一位当地的菲律宾导游为自己制订详细的旅行计划。28.D细节理解题。根据第二段可知,菲律宾长途客车的情况,有堪比空姐的乘务人员,有豪华舒适的座位,还有娱乐中心设施等配套设备。29.C推理判断题。最后两段介绍了吉普尼的情况,由此可推断,吉普尼最具菲律宾特色,是最能给游客们留下深刻印象的交通工具。30.B细节理解题。第三段介绍了菲律宾没有中央公交公司的情况,根据第二、三句可知,要想在菲律宾旅行顺利,按时乘坐交通工具,需要得到菲律宾当地人的帮助,他们知道你需要的交通工具的运行时间、具体站点和目的地31.C标题归纳题。本文主要介绍了在菲律宾旅行常用的交通工具,因此“菲律宾的交通工具选择”最能概括全文的主要内容。【D【文本大意】本文是一篇说明文,文章介绍了气候变化和森林砍伐导致很多老树死亡,所以如今地球上的许多树木更年轻、更小,寿命更短。32.C段落大意题。根据第二段的内容可知,气候变化导致气温上升和自然灾害,再加上森林砍伐造成老树死亡。33.B代词指代题。根据画线词前面的“Older forests have higher biodiversity”及“species'”和后面的“home”知,此处them指那些古老的森林。2023届高三“一起考”大联考(压轴卷)·英语参考答案3

  • 炎德英才大联考湖南师大附中2024届高三月考(三)3地理试卷

  • 炎德英才大联考·长沙市一中2024届高三月考试卷(二)2英语答案

    of the poblems tht all eperiencet chlren whedybeestayaway romshoord fict betheyhmed of their bodieshesaid.believeweeedgethe moneyprevenobthen takingthe obese kidsouand doing thingsfor themwimmingorthe besendfoobal for the obese toget themto a level where they are not ashamed of them they n join in normal activity."Data shows sugary drinks are being heavily marketed particularly towards children and theyare much more advertised than ever before.The evidence shows that advertising affects the bal-ance of the diet.Other officials,in the meantime.asked for local authorities to be given the power to banjunk food adverts near schools."We are calling today for one small power...which will enableus to do more with this issue,"they said,"That power is to ban junk food advertising nearschools because that is where most of the damage is done.That will enable us to make a morelevel playing(公竟争)field between the big advertising budgets and our legal duty and responsibility to safeguard the children's health.11.What made obese children unwilling to attend PE classes?A.They are laughed at by their peers.B.There are no PE lessons for obese children.C.They feel ashamed of their fat bodies.D.They don't have fair playing in PE lessons.12.What should be done before the obese children join in normal activity?A.Banning junk food adverts near schools.B.Providing obese children with separate PE lessons.C.Introducing a tax to businesses on sugary drinks.D.Raising money on school sports for obese children.13.What can we infer from the text?A.Obese children problem should be solved from the root.B.Local authorities have their power to ban junk food adverts.C.Children become overweight mainly because of junk food.D.Schools attach great importance to obese children's physical exercise.14.What can be the best title for the text?A.Stopping junk food entering school campusB.Obese children feel ashamed of their bodiesC.Much to do to help overweight childrenD.Obese children call for separate PE lessons三、七选五(共5小题;每小题5分,满分25分)阅读下面短文,从短文后的选项中选出可以填人空白处的最佳选项。选项中有两项为多余选项。British visitor Joel Bennett expressed his appreciation to a restaurant owner,a lady in her60s,for a good meal during his first trip in Korea.Bennett,at age 23,said "gomawo"to theowner,which means "thanks"in English.15 However,he hadn't realized there were so【24·G3ZCJ(新高考)·英语(九)-一R一必考一Y】2/4

  • 炎德英才大联考湖南师大附中2024届高三月考(三)3地理试卷

  • 炎德英才大联考·长沙市一中2024届高三月考试卷(三)2英语答案

    mid-19th century.It is a kind of traditional Chinese theatre which connects music,speech,danceand other things.W:Oh,it's Beijing Opera.M:Yes,you are exactly right.The roles of Beijing Opera fall into four main roles-Sheng,Dan,Jing and Chou..W:That's interesting.I want to know more about these roles.How about going to the librarytogether?M:Sorry,it's already 3:00 pm.I have a piano lesson one and a half hours later.W:It doesn't matter.I will go there by myself.听下面一段独白,回答第12至第15四个小题。(W)Good morning,my dear classmates.Now I'd like to tell you something about myhometown.I come from a small town.It sits near the sea.As a result,there are many beachesnearby.There are also many mountains nearby.People in our town can choose to go to the beachesor the mountains when they want to relax on the weekend.When I was little,my family especiallyloved going to the beach for fun.It also has a small city center or downtown area and you can findmany shops and restaurants there.The restaurants mainly serve sea food.In my town,there is alsoa factory that makes boats and ships.My father has been working there for over twenty years.Many people work in the factory for a living.And many others make a living by fishing on the sea.My hometown is also a popular tourist area.Summer is the busiest time.But winter is the mostcomfortable time for a trip because of the warm weather参考答案第I卷第一部分:1-5 BCCBB6-10 ABCCB11-15 CACCA第二部分:16-20 ABCCA21-25 BDDCA26-30 CBBDC31-35 AEBFD第三部分:第一节36-40 CDBCA41-45 BDCDA46-50 BDBAD第Ⅱ卷第三部分:(One possible version)第二节51.offers52.its53.is regarded54.and55.to see56.really57.leaves58.the59.by60.country's第四部分:(One possible version)第一节61.chopsticks62.local63.scissors64.coin65.Postmen66.produced67.widely68.heat69.everyday70.avoid第二节Dear Jack.I'm glad you're interested in Chinese tea.Let me tell you something about it.Tea is enjoyed by many Chinese people and it is produced in many different areas in China,suchas Anxi and Hangzhou.In order to produce tea,people should first grow tea plants.When theleaves are ready,they are picked by hand and then are sent for processing.After that,the tea ispacked and sent to places around China and many different countries.Tea is good for not only

  • 炎德英才大联考·长沙市一中2024届高三月考试卷(二)2英语答案

    23:44⊙Q总Ho:5656l0☐125%YoursLi Hua第二节(满分25分)67阅读下面材科,根据其内容和所给段落开头语续写两段,使之构成一篇完整的短文。When things went wrong,Fein always had something nice to say.When Dad forgotabout the pizza and it burned.Fein comforted him by saying it would still taste good.And he was right.The pizza edges were dark and crispy,but the middle wasn't half bad.When Fein'friend David got a low score on the spelling test,Fein said that he would dotime.And,sure enough,David studied hard and got 100 percent the nextteacher,Mr D.bumped into a book-stand in the library,Fein told him notasMs Bog wouldn't be upset.He was right.The librarian just laughed andhelped pick up the books.Fein looked on the bright side.And everyone liked that about him.Everyone,that is,except Hazel.Hazel was the new kid in the class.On her first day,Fein said,"Nice to719meet you,Hazel.1 think you'll like it here."Hazel stared at him."I doubt it."Fein didn'tknow what to do.He'd never met anyone like Hazel.When Mr D.said they couldn't exercise outside because of the rain,Fein said,"Everycloud has a silver lining.”“A silver lining?”Hazel shook her head.“Clouds are white.Maybegray.Where do you get this stuff?"Fein felt as if the wind had been knocked out ofhim.Outside the window,the clouds had rolled over the sun.The room felt darker."Bad things come in threes,"said Hazel."No outdoor exercise is number one.Whatwill the second thing be?"The class didn't have to wait long to find out.Emma wascarrying a tray (of paints during art class.She tripped,and the paint went flying.There was blue on the floor and red and black on the walls.Hazel declared it to be thesecond bad thing.Fein didn't know what to say.Hazel seemed so sure about the Rule ofThree Bad Things.Emma came to look at Fein's painting."It's beautiful.I especially likethe grassland."she said.注意:1.续写词数应为150左右;2请按如下格式在答题卡的相应位置作答。She picked it up,not realizing she had paint on her fingers"Want to add another butterfly?"Fein asked Hazel.202308高三期初调研英语参考答案第一部分:听力(共两节20题满分30分每题1.5分)1-5 BABAC 6-10 ACBCA11-15 BCACB16-20 CABBC第二部分阅读(共两节满分50分)第一节(共15题满分37.5分每题2.5分)21-23CCA24-27 ABDB28-31 ABDD32-35 CDBC第二节七选五(共5题满分12.5分每题2.5分)36-40 GBACF第三部分语言知识(共两节满分30分)第一节完形填空(共15题满分15分每题1分)41-45 ABDBC46-50 DCBAB51-55 ACACD第二节语法填空(共10题满分15分每题1.5分)56.in57.what58.prepares59.is uncovered60.as61.immediately 62.wrapped63.sadness64.where65.to see第四部分写作(共两节满分40分)第一节应用文(15分)Dear David,I'm sorry to hear about your trouble.It's normal to feel at least a little jealous ofothers'accomplishments,but you also have something others couldn't measure up to you.Younever know how jealous I am of your academic achievements!Actually,hobbies are meant to be enjoyed,not to make yourself miserable whiletrying to impress other people.Don't put too much pressure on your schedule as takingon extra hobbies might not be feasible now.You're giving priority to the importanttasks at hand in life and that's good.Also,remember that it's never too late to startup a new hobby.You can try one after college entrance examination.I wish you the best of luck.Yours,819Li Hua第二节读后续写(25分)She picked it up,not realizing she had paint on her fingers.The fingerprint layquietly on the painting,seeming to support Hazel's Rule of Three Bad Things.Hazel

  • 炎德英才大联考·长沙市一中2024届高三月考试卷(二)2英语答案

    W:Haha,I will buy one,too.听第二段对话,回答第13-15小题。W:Hi,Larry.I haven't seen you for a long time.M:Hi.Kelly.I have been to some Chinese citiesW:Which cities did you visit?M:I visited Beijing,Shanghai and Xi'an.W:How cool!M:I think so.But there are many differences between Chinese customs and American customs.Imade some mistakesW:Don't worry about it.When in Rome,do as the Romans do.M:OKW:By the way,would you like to have dinner with my family?M:I'd love to.You know.I am interested in Chinese culture and customsV.听材料,根据所听内容选择最佳答案。材料读两遍。(W)I tried that new Italian restaurant last weekend.It's in the city center near the post office.I had to drive for about an hour to get there,and there was a lot of traffic.That was the onlytrouble.However,you can sit inside and watch everyone go by.It has very nice lighting.Themenu has some great choices,too.They have the usual Italian food you find everywhere,and theyalso have some different dishes that you've never tried before.The food is really delicious,butyou might need lots of money to eat there.I spent over $100 for the two of us -a lot more thanI had expected.I'll probably go there again,though.The waiter that waited on us was really niceand quick.参考答案听力部分I.1-5 ACBBCII.6-10 BCACBIII.11-15 CBBBBIV.16-20 BAABC选做题(One possible version)16.weekend17.center18.60/sixty19.choices20.100笔试部分(One possible version选择题除外)I.21-25 DCAAD26-30 CBDCBIL.31-35 BBCDC36-40 ACABC亚.41-45 BBBAC46-50 BCBBAIV.51-55 DACBEV56.coast57.manners58.basic59.granddaughters60.eastern61.capital

  • 炎德英才大联考·长沙市一中2024届高三月考试卷(二)2英语答案

    M:Just about three hundred metres to go.The top temple is visible.Text 4M:I'd like to have a tailored jacket,pleaseW:So what style do you like?M:Just this one.And I'd like a fold at the back of my jacket.W:OK.Take off your coat please.I will take your measurementText 5W:Jim,do you know Tony Taylor,Mrs Taylor's son?Despite many hardships,he actuallyachieved his objective and made it to the South PoleM:Oh,I know him.He is a great explorer.Being brave gives him a distinct advantageText 6W:Scientists are too serious,I think.They don't know how to enjoy lifeM:But it's true that some of them like music.Some world-famous scientists can play somemusical instruments.For example,Einstein can play the violin very well.Tu Youyou enjoysplaying the piano.And some like the guitar.W:Really?Do they have spare time?M:Yes.Scientists have committed most of their time to research work.Sometimes they feel sostressed that they have to find a way to relax.So some turn to sports and some go in for music.Text 7W:Hi,John.What is your imagination about life in 20 years'time?M:Well,I suppose it must be greatly improved due to high tech.Take transportation for example.The system of transportation will be more intelligent.We can dream of a traffic-accident-freeworld in the future.W:I can't agree with you more.It is possible that the traffic messages will be flashed on thewindscreen of the cars.M:Perhaps all cars and planes will be powered by electricity or solar energy because our naturalresources are running out.W:That sounds fine.M:And there will be smart houses,which could control the air conditioning and lights.They willmake life easier.I think this technological fantasy will come true.W:Cool!Text 8W:Hello,Bill.Have you got something to share with us?M:Yeah.I was so stressed out.I mean,the last few years were the worst.When you're makingmuch money.you're spending a lot!The stress was too much when I tried to make the amountof money to support that lifestyle.To be honest,I was really having health problems as a resultof the stress.W:I'm sorry to hear that.Did you find any solution to that?M:Yes.I decided to reduce stress...to relax.I changed my big house into a small one and reducedmy four cars to two.Then I took a stress-free job.Now I have much time to spend with myfamily and I'm happy.W:How nice!OK,it's time for today's programme.Thank you,Bill.Text 9M:I love this amusement park,Mary!Thanks for suggesting it.I am having a fantastic time.

  • 炎德英才大联考·长沙市一中2024届高三月考试卷(二)2英语答案

    26.A.book B.story C.success D.belonging 27.A.probably B.necessarily C.generally D.publicly 28.A.get rid of B.dream of C,think of D,hear of 29.A.key B.road C.gratitude D.introduction 30.A.plan B.thought C,fact D.request 31.A.feeling B.experience C.expression D.fear 32.A.simple B.difficult C.puzzled D.different 33.A.gone B.lost C.found D.recognized 34.A.advanced B.apologized C.stopped D.understood

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    separate work in economic management.In 2009,US President Barack Obama was awarded the Nobel Peace Prize though this a- roused "great surprise".The economics prize was not among the original Nobel awards,but was created in 1968 by the Swedish central bank in Alfred Nobel's memory.The Royal Swedish A- cademy of Sciences quoted Professor Ostrom,who teaches at In- diana University,"for her analysis of economic management," saying her work had explained how common property could be successfully managed by groups using it.She told Swedish tele- vision that she was "in shock"at being the first woman to win the award,adding winning had been a "great surprise".Mean- while,Professor Williamson,the academy said,developed a the ory where business firms served as structures for conflict resolu- tion.The pair will share the 10 million Swedish kronor ($1. 44m)prize.

  • 炎德英才大联考·长沙市一中2024届高三月考试卷(二)2英语答案

    grades are necessary.We can pay you,depending on your work, but don't expect to get rich.This isn't something you do for money.Mostly it's just for fun.Anyone who is interested in this job should speak to me immediately after this meeting.If you have any other questions,you can visit the website of The Voice or call the number 87820139.

  • 炎德英才大联考·长沙市一中2024届高三月考试卷(二)2英语答案

    week,I received a mysterious email that said I could win a great reward by getting to the city Phoenix by the 13th of the month.I'm supposed to go to City Hall and make a phone call to this number and get more instructions. W:That sounds very strange. M:Oh!Listen,the train is leaving!Excuse me,I need to go. (Text 8) M:Your readers are interested in your childhood.What was 1t like? W:I grew up in a small town.My parents were farmers.We lived in a very poor house but we always lived in very beauti ful settings,so I had favorite trees and I had contact with birds.Though we were poor most of the time,I think I was

  • 炎德英才大联考·长沙市一中2024届高三月考试卷(三)2英语答案

    35.What could be the best title for the text? A.The oldest forest died 385 million years ago B.The world's oldest forest was discovered in a quarry C.Ancient forests always lie beneath abandoned quarries D.Berry's team are devoted to the research on forest roots

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    【写作指导】1.任务分析本篇书面表达要求介绍家人和家人们正在做的事情。主题:人与自我之生活与学文体:记叙文时态:一般现在时、现在进行时人称:第一人称、第三人称2.行文布局本篇书面表达可按照以下框架完成。开头:引入主题,介绍家庭主体:介绍家庭成员的具体信息和家人正在做的事情结尾:表达自己对家人的感情3.可用词汇与句型结构描述年龄:…years old;aten-year-old boy描述活动:talk with;cook lunch;play with;write an email描述正在进行的活动:sb.be doing sth.表达对家人的感情:I love my4.范文展示Dear Tony,I have a big family.In my family,there are four people.My dad is forty years old,and my mother is thirty-nineyears old.I have a brother and he is a ten-year-old boy.What about me?I am thirteen years oldToday is Sunday.It is 11:30 am.We are all at home.My father is talking with his friend on the phone.Mymom is cooking lunch.My brother is playing with his toy buses.As for me,I am writing an emailI love my family and we enjoy spending time together as a family.Yours,Bob1

  • 炎德·英才大联考 2024年春季高一年级入学暨寒假作业检测联考英语答案

    全国100所名校高考模拟示范卷众【命题意图】本题考查考生的细节理解能力。【解题分析】根据Resident Assistant介绍中的“Free room and board can be got.”可知,该工作项目提供免费食宿。22.A【命题意图】本题考查考生的细节理解能力。【解题分析】根据Library Attendant介绍中的helping maintain an atmosphere helpful to studying可知,图书馆管理员需要帮助维持有利于学的氛围,即维持图书馆的秩序。·23.D【命题意图】本题考查考生的细节理解能力。【解题分析】根据对IT Assistant的描述可知,信息技术助理需要具备相应的专业技能。【阅读B】研究发现,孕妇的饮食不仅会影响孩子,还可能会影响孙辈。24.D【命题意图】考查考生的细节理解能力。【解题分析】根据第1段可知,研究发现,孕妇吃的某些食物对孩子的大脑有益。25.B【命题意图】考查考生的词义推测能力。【解题分析】根据第2段最后两句可知,引起轴突(神经元的突起)变弱的故障会导致大脑异常,该研究团队使用了一个带有脆弱轴突的基因模型,随着动物变老,这种轴突会失去功能。由此可知,画线词意为“异常”。26.D【命题意图】考查考生的推理判断能力。【解题分析】根据第1至3段可推知,该研究团队使用了线虫基因模型来研究饮食与神经轴突的脆弱性之间的关系。27.A【命题意图】考查考生的推理判断能力。【解题分析】在文章最后,作者提到了这些发现具有前所未有的意义,指出这些发现需要通过对人体进行进一步的研究来证实。因此,接下来的研究很可能关注临床试验。【阅读C】本文介绍了学术研究者面临的困扰,并分析了问题产生的原因及提出了解决办法。28.D【命题意图】本题考查考生的细节理解能力。【解题分析】根据第1段第2句可知,恶劣的工作环境是导致研究者产生焦虑的主要原因。29.C【命题意图】本题考查考生的推理判断能力。英语卷参考答案(四)第4页(共8页)【24·(新高考)ZX·MNW·英语·N】

  • 炎德英才大联考 长沙市一中2024届高三月考试卷(八)8答案(历史)

    -

  • 炎德·英才大联考湖南师大附中2025届高三月考试卷(二)数学试题

    BC=2,EC=√BE+BC-2BE·BC·cOs60°=√3,所以BC2=BE+EC,故EC⊥AB.△PAB为正三角形,E为AB的中点,故PE⊥AB,所以AB⊥面PEC(2)证明:由(1)知PE⊥AB,又侧面PAB⊥底面ABCD,面PAB∩面ABCD=AB,PEC面PAB,所以PE⊥面ABCD,故以E为原点,EC,EA,E驴的方向分别为x,y,之轴的M正方向,建立如图所示的空间直角坐标系,设菱形ABCD的边DE长为2,则A(0,1,0),C(3,0,0),P(0,0,√3),D(3,2,0),GM(,1),G(,1,0)∴A=(,0.号),AG=3,0,n·AM=0,x十之=0,0).设面GAM的法向量为n=(x,y,之),则有即n.AG=0,W3x=0,取y=1,所以n=(0,1,0).又面ABCD的一个法向量可取m=(0,0,1),由cosm,n>=m品=0,放面m·nGAM⊥面ABCD.10.解:(1)以D为坐标原点,DA,D心,DD的方向分别为x轴、y轴、之轴个2D的正方向建立空间直角坐标系如图所示.设正方体的棱长为1,依题意知点B1,1,0,0(分,21A(10,0,C01,0)BC-BDi(--号,t=(-11.0,又BG=-3+0=0,B∴异面直线BO,与AC所成角的大小为。(2)证明:在(1)的条件下,设面ACD1的法向量为n=(x,y,之),.点A(1,0,0),C(0,1,n·AC=0,0D,00,1)4C-(-1,10,Adi=(-1.0,D.由1mAd-0可得厂x+y=0即-x十之=0,2令=1,则y=1g=1n=(11,1.又B0=(--1…n…G=-日[x=x,X1+(-2)X1+1X1=0,nLBC.又B0T面ACD,B0∥面ACD.又点A1(1,0,1),C1(0,1,1),.A1C=(-1,1,0),又AC=(-1,1,0),.AC=AC,.AC∥AC.又ACC面ACD1,A1C中面ACD1,∴.AC1∥面ACD1.又A1C∩BO=O,且AC面BAC,BOC面BAC,∴.面ACD1∥面BA1C1.·625ZC·数学-RA-选择性必修第一册-GZ

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