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  • 2024届名师原创分科模拟 新S4(四)化学试卷答案

    雪慧进·高考总复·单元滚动创新卷·化学6.N.代表A.20第八单元物质结构元素周期律B.标(供第一轮总复用90分钟100分)C.1D.21可能用到的相对原子质量:H一1He4N一140一16Na一23Cu-64Ba一1377.下列键白第I卷(选择题共48分)A一、选择题:本题共16小题,每小题3分,共48分。在每小题列出的四个选项中,只有一个c8.利选项是最符合题目要求的。1.我国科学家首次测定X射线暴温区的Mg、A1天体反应速率。下列说洪错误的是A.Mg和Mg互为同位素VB.Mg和A1的质量数相等2C.Mg和Al是两种核素D希1的质子数大于中子数9.2.我国科学家实现新材料CuP,Se的金属化和超导性。下列说正确的是A.GuP,Se所含元素位于前四周期入B.Se位于第周期第VA族C同周期中与Cu相邻元素有Ee、Zn人D.同主族虫与P相邻元素有N、Sb3.义、Y、Z、R为短周期主族元素,它们的核素相关的核衰变}程式如下:(1)X+n一→”Y+He,(2)4Z+n一→Y+R。已知Y的半衰期(提示:质量衰变一半所用时间叫半衰期)为12.4年。下列推断延确的是A.XR2中只含一种化学键B.R的非金属性比Z的强C.原半径:X>R>Z>YD.Y经过37.2年荆余。4.双氧是生活中常用的消毒剂,一种制备原理是BaQ3+2H,0一Ba(OH)2+H,02,反应过程中通常通人适量的C0,。木列说法错误的是A.BaO2、Ba(OH)2都是离子化合物B.H,O,C0,都含极性键和非极性键C.H20、H202中所含共价键类型不完全相同D.16.9gBa02中含0.1mol阴离子5.金属N妇滂解于液氨中形成氨合钠离子和氨合电天,向该溶液中加入定醚类左体L得到首个含碱金属阴离子的金黄色化合物[NaL]+个Na。钠也能与液氨反应:2Na+2NH,2NaNH2+H2↑。下列说法错误的是HA.Na的示意图为@√BaNH,的电子式为Na*[:iN:HlCH的装西式为H-yNHD,上述事实说明钠可表现非金属性单元卷·化学[第43页]

  • 2024届名师原创分科模拟 新S4(四)生物试卷答案

    高三分科检测提分卷生物等)、2/16aaBb(花色较浅)、2/16Aabb(花色较浅)和根据I,和I2患乙病,Ⅱ:不患乙病,可确定乙病1/16aabb(白花),F2性状分离比为1:4:6:4:为显性遗传病,具有连续性和交叉遗传的特点,人1,B项正确。若有n对基因控制花色,则花色最深群中女性患者比例大于男性,A项错误,I1和I的品种与白花品种基因型应为AABBCCDD…和的基因型分别为AaXX、AaXX,I&的基因型为aabbccdd…,F的基因型为AaBbCcDd…,若nAaXY,根据图2可确定基因类型3为乙病的致病对基因自由组合,则F2中白花(aabbccdd…)所占基因(B)、基因类型4为乙病的正常基因(b),但不的比例为(1/4),1/256=(1/4)4,所以至少有四对能确定基因类型1、2哪个表示甲病致病基因,B项基因与花色控制有关,C项正确。若花色由n对基错误;若Ⅱ。不含基因类型4,则其基因型为X心O,因控制,当n对基因自由组合时,F,与白花品种的其中X8只能来自I4,故Ⅱ,缺少来自I3的X染测交后代有n十1种表现型,D项错误。色体,说明Ⅱ,染色体异常的原因与I3的细胞诚13.A【解析】将大肠杆菌在5N标记的脱氧核苷酸培数分裂过程异常有关,C项错误;Ⅱ§关于甲病的基养基中培养一代的时间,再经密度梯度离心后分离因型为1/3AA、2/3Aa,关于乙病的基因型为提取DNA,若脱氧核苷酸是细胞内自主合成而不1/2XX“、1/2XX,Ⅱ,关于甲病的基因型为是从培养基中摄取,则合成的DNA不会有5N标1/3AA、2/3Aa,关于乙病的基因型为XY,二者婚记,离心后得到的DNA两条链均为4N,位于顶部,配,生出的孩子不患甲病的概率为1一2/3×2/3×对应图3;若脱氧核苷酸是从培养基中摄取,则得到1/4=8/9,不患乙病的概率为1/2×1/2=1/4,故生的子代DNA分子中一条链含IsN,另一条链含4N,出的孩子患病概率为1一8/9×1/4=7/9,D项离心后位于中部,对应图1;若脱氧核苷酸既可以从正确。细胞内自主合成:也可以从培养基中摄取,则合成16.D【解析】种子在该种群分布范围内都能有效传的DNA中有的两条链均为14N,有的一条链含4N播,增大b:基因遗传给下一代的概率,从而有利于而另一条链含5N,离心后位于中部和顶部之间,对该种群中b,基因频率的上升;由于b1相比该位点应图2,A项正确,B、C项错误。分离提取)NA时其他等位基因更能提高植物对寒冷的耐受力,所以利用了密度梯度离心技术,D项带误。冬季寒潮频繁发生有利于该种群中b:基因频率的14.D【解析】根据题干信息可知,14/21衡易位染上升;基因型为b,b1的个体繁殖能力更强,含基因色体由14号和21号两条染色体融合成一条染色b,的个体更多,有利于该种群中b1基因频率的上体,通过染色体易位和连接形成,发生了染色体结升;若该种群规模很大且连续分布区十分广泛,则构变异和染色体数目变异,A项正确。可通过显微偶然事件对种群基因频率变化的影响很小,不利于镜观察染色体的形态,而有丝分裂中期染色体形态种群中b,基因频率的上升,D项符合题意。稳定、数自清晰,故观察衡易位染色体可选择有17.A【解析】进食但不运动,甲鼠血糖浓度下降的主丝分裂中期的细胞,B项正确。只考虑图中的3种要原肉是形成尿糖,随尿液排出,A项错误。由图染色体时,女性携带者的卵细胞可能有6种类型:可知,与乙鼠相比,甲鼠在进食后血糖浓度较高,可①含有14、21号染色体的正常卵细胞,②含有能是胰岛B细胞分泌功能失调,导致胰岛素分泌不14/21衡易位染色体的卵细胞,③含有14/21足所致;丙鼠进食后血糖浓度始终偏低,可能是胰衡易位染色休和21号染色体的卵细胞,④含有14岛A细胞分泌功能失调,胰高血糖素含量低,B项号染色体的卵细胞,⑤含有14/21衡易位染色体正确。甲鼠血液中的胰岛素含量可能低,也可能是和14号染色体的卵细胞,⑥含有21号染色体的卵胰岛素受体出现问题,丙鼠血液中血糖浓度偏低,细胞。故女性携带者与正常男性婚配,当女性携带其腴高血糖素含量低,C项正确。进食且运动后,者的①②两种类型的卵细胞与精子受精后,子女表丙鼠血糖浓度持续下降,可能导致低血糖症状,表现均正常,即生出表现正常子女的概率为1/3,C项现为休克,D项正确。正确,D项错误。18.B【解析】植物生长调节剂不是营养物质,是由人15.D【解析】根据I3和I4不患甲病,Ⅱ&患甲病,工合成的,对植物的生长、发育有调节作用的化学可确定甲病为常染色体隐性遗传病,工3和I4关物质,不能作为能源物质促进植物生长,A项错误;于甲病的基因型均为Aa;根据题干信息“其中一种萘乙酸是生长素类似物,低浓度促进生根,高浓度病为伴性遗传”可确定乙病为伴X染色体遗传病,抑制生根,兑水比例决定浓度大小,故兑水比例是·17

  • 2024届名师原创分科模拟 新S4(六)生物试卷答案

    12.生长在盐碱地的“海水稻”所结出的稻谷磨出的大米,口感并不“咸”。“海水稻”根细3/6胞中控制物质进出的结构是A.细胞核B.细胞质C,细胞膜D.线粒体13.克隆猴“中中”“华华”已经快5岁了,快快乐乐地生活着。下图为克隆猴“中中”的培育过程,请据图分析下列说法正确的是O去核1卵母细胞核移植体外培养胚胎移植取核,●①猴体细胞重组细胞克隆胚胎受体猴克隆猴“中中A“中中”的性别与受体猴一致B.“中中”的皮肤中含有具保护功能的上皮组织C.“中中”和“华华”的结构层次不同D.图中标号①所示的过程中,细胞的形态结构和遗传物质都发生了极大的变化14.人体受精卵经细胞分裂和分化形成多种组织细胞,下列叙述不正确的是2血液①骨略肌细胞3)神经细胞A.①表示细胞分裂B.②表示细胞分化C.①过程中染色体先复制再均分D.③和④的遗传物质不同15.下图表示植物细胞分裂过程中的变化,其正确的变化顺序为丙A.甲→乙→丙→丁B.丁→乙→甲→丙C.甲→丙→丁→乙D.甲→丙→乙→丁16.下列结构中,不属于植物生殖器官的是A.桃花B.番茄C.榆树叶D.花生种子【2022~2023学年度七年级上学期期中综合评估·生物第3页(共6页)】【2LR-HEN】

  • 2024届名师原创分科模拟(五)ZS4政治f试卷答案

    16.(1)有利于实体经济实现绿色发展,形成节约资源和保护环境的空间格局、产业结构和生产方式。(2)有利于实体经济创新发展,推动科技进步,促进实体经济实现高质量发展。(每点5分,共10分。考生如有其他答案,言之成理可酌情给分)17.(1)坚持创新驱动发展有利于调动各类创新主体的积极性,激发企业等市场主体活力,进而带动创业创新。(2)坚持创新驱动发展有利于转变经济发展方式,推动产业结构优化升级,引领经济调整与转型。(3)坚持创新驱动发展有利于深化供给侧结构性改革,提升价值链和产业链水,创造新业态、新模式,打造新的经济增长点,为经济高质量发展注入新动能。(每点4分,共12分。考生如有其他答案,言之成理可酌情给分)18.(1)加强各层级规划的全面衔接,把数字乡村建设全面融入相关规划中。缩小城乡数字鸿沟,做到与顶层设计的有效衔接,与不同区域发展的协同配套,确保数字乡村规划的科学性和可操作性。(3分)(2)要重视利用新技术、新业态,为数字乡村建设注入新动力。在农村地区加快布局5G、人工智能、物联网等新型基础设施,实现数字技术与农业的深度融合,筑牢数字乡村的发展基础。(3分)(3)建设更高水开放型经济新体制,利用国内和国际两个市场、两种资源,利用网络直播等手段,推动农村产品走出去。(3分)19.(1)大力发展生产力,增加社会财富和居民收入。激励创新,注重效率,“做大蛋糕”。(2分)(2)在初次分配方面,要坚持多劳多得,着重保护劳动所得,增加劳动者特别是一线劳动者劳动报酬,提高劳动报酬在初次分配中的比重;要健全劳动、资本、土地、知识、技术、管理、数据等生产要素由市场评价贡献、按贡献决定报酬的机制。初次分配注重初次分配的规则和过程公。(4分)(3)在再分配方面,要健全以税收、社会保障、转移支付等为主要手段的再分配调节机制,强化税收调节。再分配环节,要动态进行优化调整。(2分)(4)完善个人收人分配,要坚持在经济增长的同时实现居民收入同步增长、在劳动生产率提高的同时实现劳动报酬同步提高。(2分)(5)完善个人收入分配,规范收入分配秩序,鼓励勤劳致富,保护合法收入,增加低收入者收·8·【23新教材·DY·思想政治·参考答案一R一必修2一CQ】

  • 2024届名师原创分科模拟(三)ZS4(政治)考试试卷

    他角度作答,言之有理可酌情给分存在,矛盾双方的同一是对立中的性寓于同一性之中,并为同一性夙构成事物发展的源泉和动力。(2域文化、民族文化统一于中华民和长处,由此推动中华文化不断繁之一,源远流长、博大精深,(2分)和合”精神涵养着中华民族共同的06C

  • 2024届名师原创分科模拟(二)ZS4英语试卷试卷答案

    西l89①800:62%☐☐112:35一应用了较多的语法结构和词汇。语法结构或词汇方面有些许错误,但为尽力使用较复杂结构或较高级词汇所致;具备较强的语言运用能力。有效地使用了语句间的连接成分,使全文结构紧凑。【高三英语·参考答案第6页(共7页)】2005C·HEN·第四档(16一20分):完全完成了试题规定的任务,达到了预期的写作目的。虽漏掉一两个次重点,但覆盖所有主要内容。应用的语法结构和词汇能满足任务的要求。语法结构或词汇方面应用基本准确,些许错误主要是因尝试较复杂语法结构或词汇所致。一应用简单的语句间的连接成分,使全文结构紧凑。第三档(11一15分):基本完成了试题规定的任务,整体而言,基本达到了预期的写作目的一虽漏掉一些内容,但覆盖所有主要内容。一应用的语法结构和词汇能满足任务的要求。有一些语法结构或词汇方面的错误,但不影响理解。一应用简单的语句间的连接成分,使全文内容连贯。第二档(6一10分):未恰当完成试题规定的任务,信息未能清楚地传达给读者。漏掉或未描述清楚一些主要内容,写了一些无关内容。语法结构单调,词汇知识有限。有一些语法结构或词汇方面的错误,影响了对写作内容的理解。一较少使用语句间的连接成分,内容缺少连贯性。第一档(1一5分):未完成试题规定的任务,信息未能传达给读者。明显遗漏主要内容,写了一些无关内容,原因可能是未理解试题要求。语法结构单调,词汇知识有限。较多语法结构或词汇方面的错误,影响对写作内容的理解。缺乏语句间的连接成分,内容不连贯。不得分(0分):未能传达给读者任何信息。内容太少,无法评判;所写内容均与所要求内容无关或所写内容无法看清。【高三英语·参考答案第7页(共7页)】2005C·HEN·q○▣

  • 2024届名师原创分科模拟(四)ZS4英语试卷试卷答案

    book.It is on display at the British Library24.Why did Solanki make the unusual request?Oldest Steam-powered TrainA.He had to do an experiment.B.He tried to introduce his topic.During the Industrial Revolution,"Puffing Billy",an 1813 steam-powered train,C.He wanted to save money.D.He needed to warm up the room.transported coal from the mines of Wylam Colliery to Newcastle.The train changed many25.What do the underlined words"The point"in paragraph 5 refer to?villages in England into industrial centers.Puffing Billy was used until 1862.Now the firstA.Reducing energy consumption.B.Producing electricity locally.steam-powered train is housed in the Science Museum in London.C.Switching to renewable resources.D.Achieving energy independence.Oldest Apple Computer26.What is paragraph 7 mainly about?Today,Apple computers and phones can be seen everywhere.But in 1976,the companyA.Losses for the poor.B.Solanki's optimism.only made personal computers.The Apple-1,Apple's oldest personal computer,was sold forC.Life in rich nations.D.The author's doubts$666.66 when it was first introduced in July of 1976.Of the few hundred Apple 1 computers27.What should people in the world do according to Solanki?produced,fewer than 50 still exist.One of them is on display at the Henry Ford Museum inA.Blame each other.B.Ignore the existing challenge.Dearborn,Michigan.C.Share the burdenD.Wait for the end of the world.21.Where can visitors see the St.Cuthbert Gospel?CA.At the British Library.B.At the Pfalz Historical Museum.You're an American in London.You've visited Buckingham Palace,Big Ben and theC.At the Henry Ford Museum.D.At the Science Museum in London.Tower of London,but there's one more thing you have to check off your to-do list:the22.When did Puffing Billy go out of service?A.In1813.B.In1862.C.In1867.English afternoon tea with pretty cups and all the formal ceremonies.D.In1976.According to Bruce Richardson's A Social History of Tea,Catherine of Braganza is23.How many Apple's oldest personal computers still exist?credited with introducing tea to England after marrying King Charles II in 1662.That gotA.Only one.B.A few hundred.C.Fewer than 50people curious about this new drink.But it wasn't until the 1830s or 1840s,when tea pricesD.More than one thousanddropped dramatically and it became affordable for the upper class,that the culture ofBOn a warm morning,Chetan Singh Solanki stepped off a bus he'd been living in for theafternoon tea really took root,with Anna Maria Russell,duchess()of Bedford,past 10 months and walked into a high school stadium where 200 students,teachers,andleading the trend.officials gathered to hear him speak.Back then,lunch for the upper class was generally served at noon,and dinner occurred no☒After being welcomed on the stage,Solanki made an unusual request."It's the middle ofearlier than 7:30 pm.As legend has it,one afternoon,the duchess felt hungry and orderedthe day and there's so much sunlight outside.Yet I see 15 fans and so many lights on here,tea and a variety of cakes to her bedroom.She soon made this tea break a habit and invited herhe said."Let's turn some of them off and see if we'll be OK."friends to join her at around 3 or 4 pm.Since these ladies usually sat in low armchairs whileWith half the lights and fans switched off,the stadium felt warmer and darker."Isdrinking,such gatherings became known as low tea.On those occasions,guests had to mindanyone feeling distressed because some fans have been turned off?"he asked.their manners.The audience laughed.Fortunately,the pressure was off when it came to high tea.Despite its name,high teaThe point Solanki was making is one of the two ways that he hopes will help India toactually started with the lower classes.In the 1800s,working classes were too busy to have aachieve its energy independence.One is to save energy directly by reducing consumption.Theformal afternoon tea break,so they took tea right after work with heartier food to kill theirother is to generate electricity locally from renewable resources such as the sun.hunger.The name high tea probably came from the fact that it was usually served at desks or"We think we can keep increasing consumption without consequence.But the world'sdinner tables,rather than on lower tea tables besides the sofas.resources are limited.Unless we change our ways,future generations will suffer,"he warned.“No matter it is low or high tea,keep those pinkies(小拇指)down!”Richardson warns.I began writing this article by riding along with Solanki as he journeyed through India to"Americans stand out easily because they work so hard to keep their pinkies extended whilespread his idea of energy independence.After I returned to America,I called him to ask if hisholding their teacups.It makes you look funny."message to his countrymen about simpler living was too unrealistic and unfair when people inDespite all these rules,don't get too hung up on proper behavior and not making a fool ofrich nations weren't being asked to give up their comforts.yourself.If you keep your feet off the table,you'll probably be OK.Solanki laughed."If we get into this kind of argument,then the end of the world won't28.Who first introduced tea to England according to Richardson?be far,"he said."Instead,we need to go beyond blaming each other.Climate change is aA.King Charles II.B.Queen Catherine.global problem.Everybody must share the burden.I'm going to spread this message in India.C.Bruce Richardson.D.Anna Maria RussellThen I'll take it to other countries.29.Which of the following is usually related to low tea?The moral force of his message was undeniable.But will the people in India and in theA.The lower classesB.Dinner tables.rest of the world listen?C.Formal ceremonies.D.Heartier foods.【2023年仿真模拟卷·英语(三)第3页(共8页)】【2023年仿真模拟卷·英语(三)第4页(共8页)】

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    effort to protect our environment will make all the difference to our future.28.What can we know about The Star Group from Paragraph 1?C.Improving the plants'production.第三部分语言知A.It is being supported by Inspired GoD.Reducing the use of pesticides.B.It takes the lead in tackling plastic issues33.What does Paragraph 3 mainly discuss about"the three sisters"?第一节(共20小围A.What they need阅读下面短力C.It's trying to take over CTK Bio Canada.B.When to plant.选出可以填入空白C.How they work.练卷英语王D.It is among the biggest packaging producers.D.Where to choose.I volunteer w29.Why is Surrey chosen by CTK Bio Canada for its development?34.What does Damiano remind people to do in the last paragraph?frequently give me0分钟A.It is a leading city in green initiatives.A.Plant in some scientific ways.B.Take care of the gardento the shelter,I haB.It is the most developed cities in Canada.C.Appreciate what you earned.situation and bent d容结束后,你将D.Prove what nobody doubts.35.Where is probably the text taken from?hind legs and threvC.It is a free-plastic city in Canada.A.A fiction.45分D.It has a lot of money behind it.B.A science report"Do you know从题中所给的30.Which of the following can best describe PCB?C.A textbook.D.A dairy"I've never se你都有10秒钟A.Impractical.B.Costly.C.Controversial.D.Successful第二节(共5小题;每小题2分,满分10分)a fighting dog but遍。31.What should be done for our planet's future according to Paragraph 4?根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。between her trainer选项中有两项为多余选项。A.Going on using conventional plastic.other for more.B.Improving traditional fossil fuels.From finding a $20 bill in an old jacket to finally finishing a TV seriesEvery SaturdaC.Trying to find a substitute for plastic.on the watchlist,the average person has four small wins a day,or 1,460 everyfinding her foreveryear,according to a new survey.by.She was a favoD.Adopting a new method to study plastic.36._A study of 2,004 Americans about the impact of life'severyone she metDreconsidering her.People who grow fruit and vegetables in their gardens may worry aboutlittle successes has proved it.The study found that four in five have becomethorough home 5new job?more conscious of their small wins since the start of the Covid-2019.87%which plants to plant near each other.Some plants grow well together whileShe is now invel.others do not.Studying which plants grow best together in nature can cutfind these wins to be crucial for powering through the day,according to thedown the need for fertilizers and chemicals used to kill harmful insects andsurvey conducted by OnePoll for TGI Fridays.So much so,67%have mademeets.She will neva conscious effort to recognize and celebrate them more,compared to beforeI think abouunwanted plants,or weeds.Covid-2019.interactions with p2.5分)Jessica Damiano,a gardening expert,said Native Americans knewBaby boomers(婴儿潮)said completing chores and other home-relatedevery stranger she白后有几个小about companion planting hundreds of years ago.The Native Americanreason to be angry听每段对话或method of growing corn,beans,and pumpkin together is a well-knowngoals,are the most satisfying types of small wins to achieve.37.后,各小题将example.They are called“the three sisters..”92%of all respondents have been exploring different methods of maintainingMy challengeCompanion planting puts plants together that help each other grow-like,personal wellness-and 87%said recognizing any small wins each day is aget you down,youcrucial form of self-care.41.A.donationcorn,beans,and squash do.As the squash grows,its large leaves cover the42.A.showingground.They block the sun to keep roots cool.They also keep out weeds andRespondents also listed things such as hitting a savings goal(56%),andfinding a great parking spot(53%)as other small wins worth celebrating.43.A.guessedang.animals.Corn grows tall to support the vines of the beans.And the beans38.Nine in ten said these small wins have a positive impact on44.A.cheekshelp bring nitrogen into the soil to fertilize all three plants.45.A.kissesSome plants refuse insects.For example,chrysanthemums (their mental health.82%agree they are the key to having a good day as well.39.produce natural chemicals that keep away mosquitoes,flies,and other insects.Fifty-four percent said telling friends and family about46.A.delightThe chemicals,known as pyrethrins,do their job so well that they have beensmall successes is the best one to share it.Half said treating yourself to a47.A.attemptcopied to create manufactured insect repellents.special dinner is another great one to celebrate.48.A.angrily40.Be careful with sunflowers.They can stop the growth of beans andAnd it is easy to achieve:hearing new music for the49.A.in hopespotatoes.Also be careful with onions and garlic.They will hurt the growth offirst time;achieving a fitness goal;finishing watching a TV series,learningto cook a new dish...50.A.enjoyedyour beans.But,onions and garlic help cabbage,carrots,lettuce,strawberries,51.A.courage1d,and tomatoes.Onion and garlic protect them against insects and diseases.Cabbage and cauliflower()are in the same vegetable family.ButA.When it comes to self-care52.A.comforti证project.e company.Damiano says not to plant them next to each other.Like family membersB.Best ways to celebrate small wins53.A.adopted54.A.inspiraticwho argue,they should be seated separately at the dinner table.DamianoKnowing that your life is your own55.A.praisedthe speakerreminds us to make sure that everyone in the garden can get along well.InD.Here are most satisfying small winsthat case,your garden will thank you.E.They think nothing is too small to celebrate56.A.hates32.What benefits us atr knowing which plants grow best together in naure?F.The small victories matter most in our daily life57.A.abuseA.Killing harmful insects.G.How the mind can betrained like a muscle'to focus58.A.hunted fo59.A.BesidesB.Making fertilizers more effective.mpath

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    部分听力(共两节,满2022~23年度考前模拟演练卷英语做题时,先将答案标在试12.What are new magazines about?将试卷上的答案转涂到答满分150分,考试时间120分钟第一部分听力(共两节,满分30分)A.An appointment.B.Fashion and style.C.Customersr节(共5小题;每小题1,做题时,先将答案标在试卷上。录音内容结束后,你将有两分钟的13.What does the man want to do?听下面5段对话。每段对时间将试卷上的答案转涂到答题卡上。A.Have a haircut.B.Wear his beardC.Use hair oil.选项中选出最佳选项。听关小题和阅读下一小题。第一节(共5小题;每小题1.5分,满分7.5分)14.How much does the man pay finally?A.10$听下面5段对话。每段对话后有一个小题,从题中所给的A、B、CB.20$.C.200$hat do the speakers talk abc三个选项中选出最佳选项。听完每段对话后,你都有10秒钟的时间来回听第9段材料,回答第15至17题。WeThe school magazine.The man's schedule.答有关小题和阅读下一小题。每段对话仅读一遍。15.Why is the birthday party arranged at 8 o'clock?makThe school's pool.那1.What does the woman want to do?A.Ann's flight will be delayed.fineB.Ann missed the plane.HVat does the woman do at IA.Buy a house.B.Visit her neighborhood.C.All the seats have been booked at 7 p.m.SonHave dinner.at does the man think makeC.Rent a house.16.Where will the birthday party possibly be held?A.In Ander's home.B.In a classroomC.In a hotele knows how to study.B2.What does Mike wish the woman to do?17.How many people will take part in the party in total?is Ann going to CaliforniaA.Tell him in advance.A.3.B.4.C.5.y air.B.Apologize to him early.21t is the woman's problemC.Give him free time.听第10段材料,回答第18至20题。18.What does Finland want to have in the world's best system?he's not good at it.3.How will the woman go to the annual party?A.Workplace.B.Culture.C.Education.22e thinks it difficult.A.By car.B.On foot.4.What does the woman do?C.By bike.19.What will be used in classes in the future?e can't remember it.A.Smart phones.C.3D printers.共15小题;每小题1.5如A.A cleaner.B.Digital picturesB.A waiter.C.A tailor.20.What was necessary in Miss Yang's opinion?23面5段对话或独白。每5.How long does the woman subscribe to Reader?A.BrainB.ChangeSuccessB、C三个选项中选出A.For three years.CB.For two years.C.For one year.读各个小题,每小题5入第二节(共15小题;每小题1.5分,满分22.5分)第二部分阅读理解(共两节,满分40分)每段对话或独白读两听下面5段对话或独白。每段对话或独白后有几个小题,从题中所第一节(共15小题;每小题2分,满分30分)材料,回答第6、7题。给的A、B、C三个选项中选出最佳选项。听每段对话或独白前,你将阅读下列短文,从每题所给的A、B、C和D四个选项中,选出最佳选项re the speakers going to d有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的Athe right time.作答时间。每段对话或独白读两遍。Looking For HVAC Technician Jobs In Boise,Idahorn to London.听第6段材料,回答第6、7题。We're Hiring HVAC Technicians in Boise!twtrain tickets6.How does the man often feel?At Diamond Heating Cooling,we are looking for HVACn happen to the speakersA.Tired.B.Sleepy.C.Drunk.professionals who care about providing first-class services to customers incan catch the train.尝7.What does the woman advise the man to do?Boise,Meridian,Nampa,Caldwell,and Middleton.We take pride in beingcan miss the train.A.Worry about his future.B.Do some exercise.C.Have a rest.the best at what we do,and we are looking for team members to become apart of our family.can leave London.听第7段材料,回答第8至10题。料,回答第8至10题。Rick and Sue Ellen both desired to build a residential company whose8.What's the relationship of the speakers?ny people does the man cheart was excellence,integrity,and quality.We deeply care about ourA.Husband and wife.employees and all work with the common goal of creating lifelong customersB.SB.Student and teacher.with every service call,due to attention to detail,courtesy,and a passion fordoes the man agree at IC.Patient and doctor.HVAC repair and indoor air quality services.If these values resonate (B.79.What is the man going to do at 6:00?with you and you are looking to grow your career as an HVAC technician ines the man think of the cA.Cancel the woman's help.B.Make a note.D.C.Have dinnerBoise,Idaho,contact our Careers team today to learn more!d.B.D10.When will the speakers meet?Benefits of joining the Diamond Heating Cooling team include:剂A.Tomorrow moming.B.This aftemoon.C.This moming.Competitive salary:generally superior to others前模拟演练卷英语二听第8段材料,回答第11至14题。Company-provided training:mainly management abilities11.Where does the conversation take place?Opportunities for growth and advancement:mostlikelyadvanced-degreeAAt a barber's shop.B.At a shopping storeC.At a hotel考前模拟演练卷英语一(有听力)第1页=考前模拟演练卷英语一(有听力)第2页

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    了,0策容回学得0华酒What can we learn about the dance studios?听第10段材料,回答第17至20题。dvaA心石y11uU91V/,A.They are small.BThey offer rooms for drinks.2bs020z9n601igt91l)0(OC.They have high mirrors.ail onlte1)901of99(入da18.Where is the Skate Center?9181p91m0111酒G,8余答回,咪林1策和A.It's opposite the swimming pool.B.It's beside the changing rooms.Saam o mods ol ow as w.8C.It's behind the reception area.odoge oildug ovig o boau H.A19.What is th first step to join the entertainment center?oiq vm nvi ad HA.Fill in a form..noifs1n92sng9rd1oji9bil1o9es1of月,B.Pay an annual fee.sm s ol jlumib ai isdw.0C.Get feachers'permission..oivbn boog anivid.A20.How much is the annual fee?iqol eid no gnienoA.$20.B.$21.212190C.200.第二部分阅读理解(共两节,满分40分)至0!塞容回.球林3策和第一节(共15小题;每小题2分,满分30分)owrW01阅读下列短文,从每题所给的A,B、C和D四个选项中,选出最佳选项。(i)Asd ai mno oud odraivdw.II1The second-largest city in Switzerland after Zurich,Geneva has a good position on the south-western end of Lake Geneva,in the French-speaking part of Switzerland.Visitors to Geneva will finda clean and elegant city.Here are some est things to do in GenevaCatch the Spray from the Jet d'Eau.2 STsmmsoT,日.eognmie AInstalled in 1886 to contrel the outflow of water from a nearby power station,the Jetd'Eau (water jet)soon became a symbol of the city of Geneva.It shoots water nearly 140 me-ters into the air and is one of the tallest fountains in the world.Unless winds are too strong,the Jet d'Eau runs every day and is illuminated (at night.Tour the Palais des Nationsinomtsge ain deimi oT.Yob ot tnsw amow ad 290b 1ery/Constructed in the 1930s as the headquarters of the short-lived League of Nations,thePalais des Nations(Palace of Nations)is a major tourist attraction.Visitors are free to wan-der it or may jump in on an hour-long guided tour of several of the buildings.Take a Break at the Jardin Anglais-&the Flower ClockAll roads in Geneva seem to lead to the Jardin Anglais a small,prettily planted lake-front(湖边地)garden in the center of Geneva.Crowds gather here for the flower clock,anoversized timepiece with seasonal flowers.Plenty of sitting areas,mature shade trees,and acentral fountain make this a relaxing place to take a break from sightseeing.章-0○f009【高三英语第3页(共0页)】2007C·QG一有听·

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    学生报(CN36-0059XGKXGKxsbsx@126.com本报编委会编委会主任陈彩云2_23m编委会副主任当代中


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    2024年河南省普通高中招生考试模拟试卷物理(导向一)参考答案1.欧姆电阻2.响度声源3.引力变短做功4.电磁感应现象机械5.大2000126.升华B面,金属升华成气体向外喷出,即产生一个向前的力,物体间力的作用是相互的,所以气体会给卫星一个向后的力,使卫星减速。7.B8.D9.B10.C11,D【解析】A.图中A点为火线,测电笔接触A点,氖管会发光,故A不正确,不符合题意;B.铜丝的电阻率小,熔点高,在电流过大时不易熔断,不能用铜丝代替保险丝,故B不正确,不符合题意;C.闭合开关时,保险丝未烧断,不可能是电灯短路,若灯泡短路电路的电流过大,保险丝会烧断,所以应该是灯泡断路,故C错误,不符合题意;D.若在三孔插座中接入空调后,空调不工作,测电笔测试三孔插座左右两孔氖管都亮,则可能是某处零线断路。故选D。12.A【解析】A.“刷脸”时的成像原理与照相机相同,C选项错误。因此,物体应距镜头2倍焦距以外,故A正确。B.摄像头成像利用的是光的折射,B选项错误。D.“刷脸”时,面部经摄像头应成倒立缩小的实像。D选项错误。13.BD【解析】A.潜水艇是通过改变自身重力实现沉浮的,而水母是通过改变浮力实现沉浮的,原理不同,故A错误;B.水母漂浮时,浮力等于其重力,水母沉在水底时,浮力小于其重力,所以水母漂浮时受到的浮力大于其沉在水底时受到的浮力,由阿基米德原理可知,水母漂浮时比沉在水底时排开水的重力大,故B正确;C.水母在下沉过程中,深度增大,根据液体压强公式可知,受到水的压强变大,故C错误;D.水母悬浮时,浮力等于其重力;若体积变大时,其排开水的体积变大,根据阿基米德原理可知,浮力变大,浮力大于重力,则水母会上浮,故D正确。故选BD。14.BD【解析】C.由串联电路的电流特点可知,将它们串联在3V的电源上时通过它们的电流相等,由图像可知,当通过它们的电流为0.4A时,甲两端的电压为2V,乙两端的电压为1V,由串联电路的电压特点可知,此时电源电压=U+U2=2V+1V=3V,符合题意,即此时电路中的电流为0.4A,故A、C不符合题意;B.由欧姆定律可知,电路的总电阻R=号0=1.5Q,故B符合题意;D.电路的总功率P=I=3V×0.4A=1.2W,故D符合题意。故选BD15.16.个F滑道上段bB支架底座物理试卷(导向一)参考答案第1页共2页

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    你校英语广播站正在进行以“Take care of the campus--start from me”为题的征稿活动。请你写一篇英语短文投稿,内容包括:(①)你为爱护校园所做的事:(②)号召更多的人关爱校园。注意:(①写作词数应为80左右;(②)请按如下格式在答题卡的相应位置作答。Take care of the campus--start from me第二节(满分25分)阅读下面材料,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。An Unforgettable ThanksgivingWe were living in Jakarta,Indonesia.However,our family of six had to experience a holiday without mywife,Esther,who was in Singapore.This meant that I was in charge of our four children.It was a struggle,puttingir part-time at theunion mission office,then coming home to manage the children.Shortly after arriving in Indonesia,I made friends with some of the employees at the United States embassy,whereaumber of United States marines(海军陆战队)were stationed,.and I had great conversations with them.Ichecked oufimsfrom the United States Information Service office on the embassy to show to our children andneighbors.With Thanksgiving eekpu I thought what we would do to celebrate.Many thoughts ran throughmynd Thefilmbou the Nationl Fooal League game ofthe week coude checked ou for a few days.TheSumday before Thanksgivingthequiet ofou house was disrupted by the sod of ajeep.We heard trivenyBforo who had metovistus,a bigun waskockngoItwas Willie,guindtheUnited States Embassy.He held abig boxis levingeiso thaverealicThakiving ogtherTheongfourerarine guardsIimmediately investigated ensof the box:rkeyand a half-gallon oer of Magoicream-Singapor's best brand.heayalked romour uioissoftoohome.Iacrossn of myewymadTim Heepd dowered.Igreetd md kdWat's he matTim?”ed,huThakinay om home,ad myed IduoTidclotoycke Nokeoperp my wife'exclt oo注意:)续写词数应为150个左右;②请按如下格式在答题卡的相应位置作答。oantgPfmnmankegingryionhome21madeadkalwhmonhe0oAt the appointed time we heard the jeep from the embassy at the gate ofour house.英语试题第8页(共8页)(1)固体变黑体现了?“强氧化”)性。(2)确定刺激性气味气3、西为△ABC的周卡

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    由双曲线定义,得2a=PF,|一|PF2=PD+|DF1I-(PF1+FF2|)=|DF1|-FF2|=|EF-EF2|=c+2》-(c-2)=4,所以a=2.因为2c=6,所以a=4,C9,b=2-5.联立y=2+m和-1,得45x2-8mx-4m2-20=0①.4>0,设M(x1y1),N(x2y2),则x1+x2=8m,x1x2=-4m2-20,所以MN=√2·(x1十x2)2-4x1x2=√2·√(8m)2+16m2+80=4√10(m2+1).当m=0时,MN取最小值4√10,此时F1(-3,0),F2(3,0),|F1F2|=6.①式为x2-20=0,所以点M坐标为(2√5,2√5)或(-2√5,-2√5),所以△MFF:的面积S=号×6×25=65,已知B1,B,是椭圆三+=I(>b>0)短轴上的两个顶点,点P是椭圆上不同于短轴端点的任意一点,点(与点P关于y轴对称,则下列四个命题中,其中正确的是①直线PB,与PB:的斜率之积为定值-g:@P元,PE>0,③△PB,B:的外接圆半径的最大值为2+b22a④直线PB1与QB2的交点M的轨迹为双曲线.【答案】②③解折】0设P),B1(0,-6),B(0,6),则+是-1,则km·m十白.-6--以①不正确;②因为点P在圆x2+y2=b2外,所以x十y8-b2>0,所以PB1·PB2=(-x0,一b-y0)(-x0,b一y0)=x十y-b2>0,所以②正确;③当点P在长轴的顶点上时,∠B1PB2最小且为锐角,设△PB1B2的外26262b2b接周半径为r,-个长轴顶点为A,由正孩定理可得2r=sn∠B,PB,≤sn∠B,AB,一sn2ZOAB,2aba2+b2。,所以r<,所以△PB,B,的外接国半径的最大值为-,所以③正确;④直线PB,的方程为a2a2a_Y0+6y十b=x_yo-bx,化为21,直线QB:的方程为y一6=,两式相来可得)-6-。6a=1,因为点P不与B1,B2重合,所以,点M的轨迹为双曲线的一部分,所以④不正确.三、解答题:本题共6小题,共70分。解答应写出文字说明、证明过程或演算步骤。17.(10分)已知相圆C的际准方程为后+景=1a>6>0),右熙点为F,离心率为分搭圆C上一点为1,》直线AB的方程为y=kx十1(k≠0),交椭圆C于A,B两点,M为AB中点.(1)求椭圆C的方程;(2)过F且与AB垂直的直线与直线OM交于点P,过点O作一条与AB行的直线l,过F作与MO垂直的直线m,设l∩m=Q,证明:直线PQ⊥x轴.19=1,(1)解:依题意得解得2-4,【家】√a2-b1b=3,限农.9己偷年,9△路琳a2’所以精圆C的方程为二+y4F3=1.(2)证明:将椭圆C的方程+4+3-=1与直线AB的方程y=kx十1联立,消去y得,(3+4k2)x2+8kx-8=0,△>0,设A(x1,y1),B(x2y2),8k8得x1十x2=3十4kx122=3十4k2’设M(x0yo),所以x。=1十x2=4k323+4k20=kx0十1=3+42·114·

  • 2025届高三总复习·名师原创模拟(三)历史试题

    七)1.A考查中国共产党。中共中央在瓦窑堡会议上明确了党的任务是要团结全国各阶级、阶层组建一个统一的民族革命阵线,中国共产党认识到中日民族矛盾已经上升为中国社会最主要矛盾,故A项正确。明确了新民主主义革命的方向是在中共二大上,而不是材料所述时间和事件,故排除B项;这一讨论不能奠定全面抗战胜利基础,故排除C项;材料中这一时期是中国共产党推动抗日民族统一战线的形成而不是革命统一战线,故排除D项。2.B考查日本侵华战争。结合所学知识可知,盛京是沈阳的旧称,1931年九一八事变后东北被日本所控制《盛京日报》为日本舆论宣传机关,报中指责苏联、中国、欧美国家,是在为日本侵华寻找借口,掩盖其独占中国的野心,故B项正确。抨击中共、苏俄、欧美、国民政府都是日本侵华的借口,不是其主要目的,故排除A、C、D三项。3.A考查抗日战争。.根据材料“国民党恢复了北伐战争时期的国民党军事委员会政治部,并邀请共产党人参加”“共产党代表团积极筹备群众组织,支援保卫武汉的前线战事”,结合所学可知材料中所述事件发生于1938年的武汉会战,是在国共两党第二次合作形成抗日民族统一战线的背景下开展的,国民党此举深化了国共合作,共产党积极领导群众支援正面战场的作战,体现了全民族抗战的深人发展,故A项正确。根据所学知识可知,国民党坚持的是片面抗战路线,所以并未形成全面抗战的共识,故非除B项;根据材料“恢复了北伐战争时期”“周恩来出任政治部副主任,郭沫若出任第三厅厅长”“支援保卫武汉的前线战事”可知,材料描述的是抗日战争而不是国民革命,故排除C项;抗日战争期间,国共的第二次合作是以党外合作的方式,故排除D项。4.C考查抗日战争。结合所学知识可知,随着中国沿海通商口岸被日军封锁及东部地区战争的焦灼,国民政府迁都重庆,随之社会与经济中心迁移至西南地区,于是国民政府加强西南地区的交通建设,推动军需物资运输为持久抗战奠定一定物质基础,故C项正确。1938年10月武汉会战结束标志着抗战进人相持阶段,故排除A项;淞沪会战粉碎了日军速亡中国的企图,故排除B项;抗战敌后战场是由中国共产党负担的战场,主要在华北原、晋西北、晋西南、晋东南、冀中、皖南一带,故排除D项。5.C考查抗日战争敌后战场。材料中所涉及的时间点是1940年,可知材料所述现象出现在抗日战争的相持阶段,再结合材料中“讨伐行动当以重点指向共产军匪,对其游击队作彻底地扫荡覆灭”,说明此时期中共在抗日战争中起到了巨大的作用,才使得日本实行这一政策,故C项正确。材料内容主要讲述日本重点进攻中国共产党及中国共产党所领导的游击队,没有涉及其全面收缩侵华战线的相关内容,故排除A项;题于中没有涉及国民党对抗战的态度,故排除B项;根据所学知识可知,在整个抗日战争时期,抗日民族统一战线一直存在,并没有消失,故排除D项。6.B考查抗日战争。在国共合作为基础的抗日民族统一战线的旗帜下,日军深陷对华战争的泥潭,美国此时对中国进行援助目的是以此牵制日军转而向其进攻,这有利于美国的国家利益,故B项正确。美国对华政策调整即援华抗日,依旧从其全球战略利益的需要,故排除A项;国共合作为基础的抗日民族统一战线在1937年已经建立,故排除C项;中华民族的英勇抗日,使国际社会看到了中国的力量,赢得了国际社会的尊重和支持,才有美国对华政策的调整,故排除D项。7.C考查抗日战争。根据材料“结成了坚固的战线”“八十多年前的《延安颂》”及所学知识可知,这首歌曲创作于抗日战争时期,成为全国爱国青年团结一心、抵御外敌的动员号令,故C项正确。国民大革命发生于1924~1927年,与材料时间不符,故排除A项;中国革命新道路的开辟是在1927年前后,故排除B项;全国团结抗战局面初步形成的标志不是这首《延安颂》,而是西安事变的和解决,故排除D项。8.C考查抗日战争敌后根据地建设。根据材料可知,群英大会通过表彰先进,组织经验交流和练兵技术活动,动员民众参与到抗战和生产活动中,故C项正确,排除A项;群英大会体现不出抗日民族统一战线的全民性,故排除B项;群英大会是中国共产党召开的,并不能折射出国共合作抗日的效果,故排除D项。9.C考查重庆谈判。根据材料“中共中央和毛泽东经慎重考虑,决定前往重庆与国民党进行谈判”并结合所学知识,毛泽东赴重庆谈判,目的是为了尽量争取和建国,同时揭露蒋介石集团“假和、真内战”的阴谋,使更多人认识到中共的和、民主建国的主张,争取全国民众及中间派的支持,故C项正确。此时抗战结束,国共内战还未全面爆发,而新民主主义社会开始于1949年新中国的成立,故排除A项;结合所学知识,毛泽东赴重庆谈判,目的是为了尽量争取和建国,且当时美国亦希望争取和解决国共两党分歧,中共并未受到美国军事压力,故排除B项;结合所学知识,国民党内“左”派欢迎毛泽东赴重庆谈判以实现和民主建国,而以蒋介石为首的国民党“右”派却意图借此机会打击中共,故排除D项。10.A考查解放战争。从“从地主手中获得土地,实现耕者有其田”这一指示可知中国共产党改变了抗战时期的“减租减息”政策,主要是为了适应抗战胜利后阶级矛盾成为中国社会主要矛盾的现状,故A项正确。此时党的工作重心仍在农村,故排除B项;中国共产党在解放战争时期实行的是“耕者有其田”政策,而抗战时期实行的是减租减息政策,两者并不相同,故排除C项;土地政策的转变主要是为了完成民主革命的任务,2025届高三名校周考阶梯训练·历史参考答案第9页(共28页)

  • 2025届高三总复习·名师原创模拟(三)英语试题

    11:46k9se☐73%【新高考】江西省1重点中学联盟2024-..M:Yeah,we gave it our all.But hey,it's not the end of the world.W:I know,but still,losing by just one point is frustrating.M:Yeah,but our debaters performed very well and we played some solid defense.We did enough research onthe topic.Plus,we had good organization and structure.W:Yeah,that's true.But we have to admit that our opponents were able to express their points clearly andpersuasively,and raise their voices for emphasis.M:You're absolutely right!What should we do next-continue to practice or host a post-debate discussion?W:Neither.I think we should seek feedback from judges and our coachesM:That's a good point,too.Let's focus on improving and getting the win next time!Text 8M:Barbara,I'm planning to open a pet store,but I don't know where to start.Any advice?W:Yes.To begin with,be aware of and observe national and local pet store regulations.Make sure to obtainall necessary permits.Besides,provide a clean environment and ensure your employees are trained in petcare,health and behaviorM:Thanks.Anything else?W:Yeah.Choose high-quality pet food and supplies that meet safety standards.M:OK.Should I cooperate with an animal doctor?W:Yes.Establish a partnership with a local animal doctor for emergency medical assistance.M:Oh,how can I attract customers?W:Use social media for effective marketing and consider loyalty programs or promotions.M:It seems like there's a lot to manage.What else?W:Regularly inspect and update your facilities and servicesM:Oh my!I thought your advice would ease my pressure,but now I feel even more anxious.There's so muchto consider!Text 9M:I felt embarrassed this morning,because my computer made some noise when it gave out heat in the library.I was afraid that the noise would disturb others.Besides,I'm always afraid of seeking help from others forfear of putting them to a lot of trouble.W:That's not a big deal.I think many people are ready to help others.Yesterday,I forgot to bring my card andcouldn't get hot water in the water room.Therefore,I borrowed a card from a schoolmate.In return,I gaveher a few pieces of candy.We were both very happy in the end.M:I know you sometimes have low levels of blood sugar,so you always carry candy with you.W:Yes.Anyway,I told my story to advise you not to think too much and feel like you'll trouble others.Youwon't know the result until you startM:I got the life wisdom.Well,you're always cheerful and outgoing.I've never seen you get upset,even whenyou didn't do well in exams.W:I'm usually in a bad mood when I have an empty stomach.M:Then let's hurry up.If we arrive at the dining hall too late,there won't be any food left.Text 10W:Children in the Indonesian city of Bogor are cleaning up a local lake on their own.They remove the trashfrom the water and place it in their boats.Later,on land,all the trash is examined and dealt with.It beganwith a boy.10 years ago,Giri Marhara decided to start cleaning up the lake.He was just 16 years old at thetime and had a habit of cleaning up his environment.Young people like Marhara have been at the forefrontof environmental and climate change movements in recent years.Movements like school events for climateaction,protests at United Nations Climate Talks,and local cleanups have often been youth-led.IndonesianEnvironmental and Forestry Ministry said the country produced more than 35 million tons of waste last year.It was estimated that 35 percent of waste in the country was not managed.Some types of plastic can berecycled.But environmentalists also say the world needs to make less waste in the first place,as much of itends up in landfills or in the world's oceans.Marhara believes that lasting change will require ending thebehavior that causes trash to be out there in the environment."I think that the only way is to develop acleanup culture."he said.4/4

  • 2025届高三总复习·名师原创模拟(三)文数试题

    高三一轮复·文数·.MN∥AB,则y1十y2=4,y1y2=-4.(10分)∴.可设直线MN的方程为y=4x十m.(14分)又点P的坐标为1,2),A(y),B(2),设M(1,y1),N(x2,y2),则pA=一2=4y=4x十m,得2x2-4x-m=0,4由y=2.x4故直线PA的方程为y-2=4。(16分)+2(x-1),.△=16+8m>0,x1+x2=2.又61=-名=2-2=21-2,同理得,=2令x=-1,得y=2-8。=2-4x1+1x1+1y+2y+2-2,所以D(-1,).k1+k2=2x1-2+2x2-2=2(x1+x2)-4=0.同理可得点(-1,),(16分)(20分)11.解:(1)由题意知直线OP的方程为y=2x,则D-(2干)-(,-+):y=2x所以D萨.E驴=4+4一8(y十2)十16」0联立方程,得P(,p),(4分)yy2+2(y十y2)+4y2=2px(18分)又|PF|=2,所以DF⊥EF,即点F在以DE为直径的圆上所以多+多=2,解得力=2,22(20分)所以抛物线C的方程为y2=4x.(8分)(2)设A(x1,y1),B(x2,y2),将y=x-1代入y2=▣4x,得y2-4y-4=0,反馈意见有奖。79·

  • 2025届高三总复习·名师原创模拟(四)文数答案

    设x∈R,记[x]为不大于x的最大整数,{x}为不小于x的最小整数.设集合A=12.(20分){之2≤[z1门≤3,z∈C},B={x2≤{z}≤3,x∈C,则A∩B在复面内对某同学在一次研究性学中发现,以下四个式子的值都等于同一个常数:应的点的图形面积是①sin212°+cos242°+sin12°cos42°;三、解答题:本题共2小题,共40分。解答应写出文字说明、证明过程或演算步骤。②sin215°+cos245°+sin15°cos45°;11.(20分)③sin220°+cos250°+sin20°cos50°;已知复数x=(m2-6m十8)+(m2一3m十2)i,其中i是虚数单位,m为实数④sin230°+cos260°+sin30°cos60°,(1)当复数之为纯虚数时,求m的值;(1)试从上述式子中选择一个,求出这个常数;(2)当复数之·i在复面内对应的点位于第三象限时,求m的取值范围.(2)根据(1)的计算结果,将该同学的发现推广为三角恒等式,并证明你的结论。文数·周测卷(二十六)第3页(共4页】文数·周测卷(二十六)第4页(共4页)

  • 2025届高三总复习·名师原创模拟(四)理数答案

    18.(本小题满分12分)①求决赛出场的顺序中,甲不在第一位,乙不在最后一位的概率;2021年,我国5G手机普及进一步提速,据统计,1一5月份我国国内市场5G手机出货量同②记该校高二(2)班在决赛中进入前三名的人数为X,求X的分布列和数学期望」唱比增长134.4%.某品牌手机生产企业为进一步掌握该品牌5G手机在A省的各专卖店上半壁年的销售情况,从该省所有县市中,用简单随机抽样的方法抽取了9个县市,统计了该品牌5G手机上半年的销售数据,调查得到的样本数据(x,y)(i-1,2,…,9),其中x:和y:分别20.(本小题满分12分)细表示第i个县市该品牌手机专卖店数量(单位:家)与该品牌5G手机上半年总销量(单位:千目前,新冠病毒引发的肺炎疫情在全球肆虐,为了解新冠肺炎传播途径,采取有效防控措施,部),经计算得到如下数据.某医院组织专家统计了该地区500名患者新冠病毒潜伏期的相关信息,数据经过汇总整理得到如图所示的频率分布直方图(频率作为概率),潜伏期不高于均数的患者,称为“短潜伏者”,潜伏期高于均数的患者,称为“长潜伏者”,60待)38民水年60360频率组距(1)根据样本数据,求y关于x的线性回归方程;0.180.15(2)已知M市共有该品牌手机专卖店10家,该品牌手机销售部门给A省M市今年上半年定下的5G手机销售任务是15万部,其中上半年通过非专卖店销售了10万部手机.试利用0.08(1)中所求回归方程判断,该品牌手机销售部门在A省M市能否完成上半年的销售计划.附:对于一组数据(x1y),(x2,y2),…,(x,ya),其回归直线y=x十a的斜率和截距的最8期0246810121(-x)(y,-y)(1)求这500名患者潜伏期的均数(同一组中的数据用该组区间的中点值作代表),并计算小二乘估计分别为:=a=.出这500名患者中“长潜伏者”的人数;长(2)为研究潜伏期与患者年龄的关系,以潜伏期是否高于均数为标准进行分层抽样,从上述500名患者中抽取300人,得到如下列联表,请将列联表补充完整,并根据列联表判断是个中否有97.5%的把握认为潜伏期长短与患者年龄有关,短潜伏者长潜伏者合计60岁及以上16060岁以下6019.(本小题满分12分)合计300为普及高中学生安全逃生知识与安全防护能力,乌海市某校高二年级举办了安全逃生知识(3)研究发现,有5种药物对新冠病毒有一定的抑制作用,其中有2种特别有效,现在要通过与安全防护能力竞赛,该竞赛分为预赛和决赛两个阶段,预赛为笔试,决赛为技能比赛,先将逐一试验直到把这2种特别有效的药物找出来为止,每一次试验花费的费用是600元,设所所有报名参赛选手参加笔试的成绩(得分均为整数,满分为100分)进行统计,制成如下频率需要的试验费用为X,求X的分布列与数学期望E(X).分布表.附表及公式:分数(分数段)频数(人数)频率P(K2≥k)0.150.100.050.0250.0100.0050.001[60,70)9xko2.0722.7063.8415.0246.6357.87910.828[70,80)0.38娜n(ad-bc)2[80,90)160.32K-(a+b(cfd)(aF)(bdn-abcd[90,100]合计1函(1)求出上表中的x,y,2,s,p的值;(2)按规定,预赛成绩不低于90分的选手参加决赛,参加决赛的选手按照抽签方式决定出场顺序,已知该校高二(2)班只有甲,乙两名同学取得决赛资格理数第5页(共8页)衡水金卷·先享题·高三一轮复单元检测卷二十理数第6页(共8页

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    3.C细节理解题。根据Chipping Campden,England一节中“But the highlight is the wrestling that thankfullyhas never caught on anywhere else..”可知,这里的摔跤与众不同。4.D根据空前“许多人希望学一门乐器,但不知道该选什么好”可知,D项“这些问题将有助于你做出决定”符合。5.G根据空前“有些乐器只适合演奏特定种类的乐曲”可知,G项“比如,萨克斯就经常和爵土乐联系在一起”符合。6.A根据空后“但是,无法改变的事实是,有的乐器,比如钢琴,就非常昂贵”可知,A项“许多乐器非常便宜”符合。7.B本小节都是在讲你能在什么地方练,故B项适合做小标题。8.F根据空前“不要让那些生理局限限制了你的选择”可知,F项“谁说瘦小的你就不能玩小号”符合。9.oldest考查形容词的最高级。根据空前的the及空后“dating back6,O00 years.,,”可知,此处用所给形容词的最高级形式。l0.the考查冠词。此处用定冠词the表示特指。11.w0考查定语从句。分析该句结构可知,该句是一个限制性定语从句,从句中缺少主语,又因为先行词为those,指代游客,故用关系代词who。12.covering考查非谓语动词。分析句子成分可知,此处用所给动词的非谓语形式;又因为cover与其逻辑主语a gingko forest park存在逻辑上的主谓关系,故此处用所给动词的现在分词,表示主动。l3.protected考查非谓语动词。分析句子成分可知,l此处填非谓语动词,动词protect.与其逻辑主语species存在逻辑上的动宾关系,故此处用所给动词的过去分词充当定语,修饰species。14.surely考查词形转换。根据句意可知,此处用所给形容词的副词形式。15.curiosity考查词形转换。根据空前的satisfy their可知,此处用所给形容词的名词形式。16.leaves考查名词复数。leaf是可数名词,此处指“很多树叶”,故用所给名词的复数形式。I7.are planted考查动词的时态和语态。根据上下文可知,此处用一般现在时;又因为主语gingko trees与动词plant存在动宾关系,故此处用一般现在时的被动语态。18.with考查介词。contrast with意为“与…对比”,为固定搭配。写作One possible version:I was ashamed to admit that I was feeling a bit left out.Here it was,and it seemed like everyone else hadfound that special someone to spend it with,except for me.I was alone without my close friends,as well.Iconsidered skipping the dance altogether,but then I remembered how much work had gone into it and how myfellow Interact Club members were counting on me.So,I felt like what I did was a remarkable achievement.At the dance,I saw Bill immediately in his wheelchair.He saw me and smiled,so I headed over to join thestudents around him,all of them laughing and dancing and having a good time.Many of us were a bit self-consciouswhen it came to dancing,but not Bill.He was only able to move his arms a little bit,but he did it enthusiastically.Then I realized that I received a priceless gift.Simply by being himself,Bill showed me how to forget my fearsand just dance.

  • 2025届高三总复习·名师原创模拟(四)理数试题

    9.(本小题满分10分)第1卷在面直角坐标系xOy中,曲线C的参数方程为10(本小题满分10分)(口为参数),以坐标原点O为极点,x轴的正半轴为极轴建立极x=2cosa面直角坐标系中,过点P(-1,0)的直线的参数方程x=1+3.(本小坐标系,直线1的极坐标方程为P=y=sina23(1为参数),在以坐标原点O为极点,x轴正半在面(I)求直线I的直角坐标方程、曲线C的极坐标方程;y-2(Ⅱ)已知曲线C,C,的极坐标方程分别为9-营P>0),轴为极轴,取相同的单位建立的极坐标系中,曲线C的方程为为参数2acose-psin20=0(a>0)标系,0=5C(P>0),曲线C与C交于点A,直线1与曲线C,交(I)求曲线C的直角坐标方程和直线!的普通方程:(I)12(I)若直线1与曲线C分别交于M,N两点,且PM,MN,(Ⅱ)于点B,求△AOB的面积.PN成等比数列,求实数a的值C0X-1。29%可汉C多饭7礼{X=」十0y-tsmb

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