• 鼎成原创模考·2025年河南省普通高中招生考试试卷·方向预判卷(一)数学试题

    所以点Q(4,14分以下同方法一19.解:9(1)①a2分②a=64分(2)分类讨论:①若A为“等差组”,则设aa=1+d,a=1+2d若A为“等差组”,则2T+2d)=1+d+4,可解出d=1,√3若A为“等比组则(1+2d)²=4(1+d),可解出d=±(负值舍去)2②若A为等比组1±√33若则2q²=q+4,可解出g负值舍去)若A,为“等比组”,则g=4g,可解出g=48分由此可见,a~a的取值可能共有4种,而a的取值同时取决于A~A是“等差组”还是“等比组”,故总可能为4×2°=1024种10分(3)由a=1,a=2及任意相邻三项成“等差组”或“等比组”,可知符合要求的12项的正项数列仅有有限种。不妨设a,,…,a,取到最大,我们证明:前5组相邻三项为“等比组”,后5组相邻三项为“等差组”反证法:假如不然,易知存在{1,2,·,9}使得A,=(a,a,a2)为“等差组”,且a²+2=ai+iai+3(a+ai+2)其中=>1,此时a,ai+z4aai+2a,a+i,a为(ai+1,ai+2,ai+3)=(ai+1,Aai+2,Aai+3)=(i+li+l,'pa而对于je{1,2.…,10}(不含i和i+1),(a,ai,aj)与(a,aa2)同为“等差组”或“等比组”,这意味着a,a,,a2的所有10组相邻三项中,也恰有5组“等差组”和5组“等比组”,故为符合要求的数列,但a=a2>a2,与a2的最大性矛盾。15分扫描全能王

  • 鼎成原创模考·2025年河南省普通高中招生考试试卷·方向预判卷(一)数学答案

    六校联盟2025年4月期中联考高二数学试题考生注意:1、本试卷分选择题和非选择题两部分。满分150分,考试时间120分钟。2.答题前,考生务必用直径0.5毫米黑色墨水签字笔将密封线内项目填写清楚。3.考生作答时,请将答案答在答题卡上。选择题每小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑;非选择题请用直径0.5毫米黑色墨水签字笔在答题卡上各题的答题区城内作答,超出答题区域书写的答案无效,在试题卷、草稿纸上作答无效。4.本卷命题范围:人教版选择性必修第二册第五章,选择性必修第三册第六章、第七章。一、选择题:本题共8小题,每小题5分,共40分,在每小题给出的四个选项中,只有一项是符合题目要求的1.函数f(x)=x一lnx的最小值为A.1B.e-1C.0D.1+12.设随机变量X~N(2,²),P(0

  • 鼎成原创模考·2025年河南省普通高中招生考试试卷·方向预判卷(一)英语试题

    sandpaper for specificapplication.C.The rules should be furthered tightened.D. More researches would be needed.Thecitistaid that d coudsaiousalionin35.What willthe passage talk about in the following paragraphs?A.Why invasive species should be removed?B.How to properly deal with invasive species?sC.How invasive species harm the nature?D. What to do with plant trade?difrentiatbtweenthosonditonsaidYuping HuangdiretrfthtevensCenteorQuantScience and Engineering.“Quantum interactions provide a wealth of information using AI to quickly第二节(共5小题;每小题2.5分,满分12.5分)understand and process it is the next logical step.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。28.Which of the following has the same meaning with the underlined word in Paragraph 2?Fundraising can be a fun challenge, as well as a way to help charities achieve amazing things.FromA.Beneficial.B.EfficientC.HarmfulD. Influential.planting tuilin hlrpaingrvit victhealasfwahaiia29.How can we understand“"This is a marriage of AI and quantum"in Paragraph 2?money to good use.We have teamed up with online fundraising platform Superkind tohelp children make aA.The research differentiates AI from quantum.B.Their advantages are combined this way.difference._ 36.C.AI has replaced quantum science.D. AI corrects the disadvantage of quantum.Choose a charity to support.30.What does Paragraph 3 mainly talk about?There are more than 170,000 charities, just in England and Wales.You might want to raise money forA.Procedure of the experiment.B.Findings of the experiment.C.Influence of the experiment.D.Applications of the experiment.homelessnessSome charities help people with a specific ilness or disability, or focus on rescuing wildlife31.What does Yuping Huang think of the new method?in a small local area. 37.·A.He is in favor of it.B. He thinks nothing of it.38.C.It still needs improvement.D. It will replace human eyes.Think of something that will encourage people to donate to you such as giving them a service orDproduct. You could organise an event such as a dog show or a karake night and charge people to atend. YouWhen people buy flowers or plants to decorate their homes and gardens, sometimes they come withcould sell old toys or cakes you have made. Or, you could take on a challenge and ask people to sponsor you.anunexetd gustilviuPevana fo xert at tiversityfCaidewasnty calIt could be a physical activity, such as walking a particular distance, or staying silent for a set amount of time.to a fower shop inSheeld, England, to identify a frog that had been found in some rosesH discoverdCreate a platform.Createafraising pageonneoyouca shareit with peand createabuzuprind is tthat the frog was from South America. Petrovan said it must have hopped into the roses while they wereworld’s onlyfdraising platformthat s deiged tobeusdby pplender 16.Ask anadult tohlpyoutravelling from Colombia to the UK.set up a page.Inspired by this, Petrovan has worked with a team of researchers to find out how common it is forYou canchooseyourcharityetyoufundraising goaladd photos orvieos and colect digital badeanimals,diseases and pests (an insect or other creature that attacks crops or animals) from other parts of theworld to arrive in Europe with fowers and ornamental plants. Ornamental plants are plants that people growfor fundraising milestones. 39.in their homes or gardens for their appearance or scent.Take action and promote it.40. Ask adults to share your page with their fiends.You could ask a teacher if you can talk inThe researchers looked at records of pests found in ornamental plants entering the Netherlandsodo spbetween017and2018and theUbetween021and023Theyfound that,inbothcases80%of tpage.Share your progress by updating your page with pictures of yourself training or preparing for yourpests foundwere nsectsherewas also evidenceofItalianwallizardeckosand snakefrommainlandchallenge and then—hopefullycompleting it.Europ arrivingiamntallive eedliverieIsectsfngirpile and sierseretransortdA. Select an activityplant deliveries as well.This could be inereasing the risk ofinvasive speciesAn invasive species is one that is introducedB.Introduce your strengths to othersC.Make sure everyone knows about your fundraiserandhamsitsewninmntepanlaed nthrerchPeovanteuggested thaD.Read and find out more to get top fundraising tipsneeded to be tighter rules around how ornamental plants and flowers are traded between countries.ThisE.Describe what you are doing and why it‘s importantcould help to prevent harmful speciesmaking theirway into new habitatsHowever,the team added thatF.Others try to enhance their understanding of the cityanynewlhunmaetaadediflultsfelynittaeG.Others work to solve worldwide issues such as hunger and climate change32.Which word can deseribe the appearance of frogs in roses?C.Aecidentally.D.Purposefully.A.Intentionally.B.Deliberately第三部分 语言运用(共两节,满分30分)33.What did the writerimply in Paragraph3?B.The researches covered the same time period.A.UK suffered the most severe.第一节(共15小题;每小题1分,满分15分)D.Only insects were found in foreign plants.C.Insects covered alarge porion of ests.阅读下面短文,从每题所给的A、B、C、D四个选项中选出最佳选项。34.What was the researchers atitude to tighter rules?Christmas sfen mforfamilygaringsaughteand sharedealsuromeitsB.They agreed but with caution.A.They disapproved of them.伯乐学教育英语押题(三)第6页(共8页)英语押题(三)第5页(共8页)伯乐学教育

  • 鼎成原创模考·2025年河南省普通高中招生考试试卷·方向预判卷(一)英语答案

    center or nearby green suburbs, showing why Victoria is called the “Garden State”.minute walk back to the city center.then return to the Pullman Hotel where you can then stay for breakfast or take a quick 10Ground and Albert Park Circuit. After landing, you can help pack the balloon if you want),River as the city comes to life. Look down at famous places like the Melbourne Cricketballoon or take photos.As you fly,you'll see Melbourne's parks, gardens,and the Yarratasty breakfast.fly thisway!Watch the city's skyline light up at sunrise duringaonehourfight,then enjoya该项涂黑。机密★启用前第一节阅读理解(共12小题;每小题3分,满分36分)第一部分阅读技能(共两节,满分45分)Warm tips:Flights depend on the weather and wind direction. You might fly over Melbourne's cityWe'll pick you up from your hotel and take you to the launch site. You can help set up theThe route(路线):·Free ride to and from your hotelHighlights(亮点):Join a special hot-air balloon flight over Melbourne one of the few cities where you can阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将·Perfect for couples or friends本试题卷分阅读技能、知识运用、写作技能三个部分,共8页。时量90分钟,满分100分。2025年湖南省普通高中学业水合格性考试仿真试卷(专家版六)·Amazing views from the sky b·Quick booking confirmation(确认) lobu% zivTEnjoy a Magical Hot-air Balloon Ride Over Melbourne英语试题(专家版六)第1页(共8页)英语m loon

  • 鼎成原创模考·2025年河南省普通高中招生考试试卷·方向预判卷(一)物理试题

    全国100所名校高考冲刺卷Ro大,则电阻箱的阻值为Z2A.R。5D.2R有选错的得0分。8.如图所示,在倾角为0的斜面顶端E点将一小球以垂直斜面的速度。抛出,小球经过与E点等高的F点,最终落到斜面上的G点,重力加速度为g,空气阻力不计。下列说法正确的是大重2uosin 02U0B.小球从E点运动到G点所用的时间为一gcos 0不向C.小球落到G点前瞬间的速度大小为v。~1+4tang家2uosin²0D.E、G之间的距离为gcos 0社到其图#有信中意9.图甲是t=0时刻一列简谐横波的波形图,图乙是图甲中质点M的振动图像,下列说法正确的是个#中10√3甩光0.3t/s1012ZA.此简谐横波沿x轴正方向传播2π上会单B.质点P的振动方程为=20sin(10πt+)(cm)332C.质点P的衡位置坐标xpm3直点人单的小更#用#D.在0~5s内,质点N通过的路程为20m式会【25·(新高考)高考样卷·物理·HEB】

  • 鼎成原创模考·2025年河南省普通高中招生考试试卷·方向预判卷(一)物理答案

    物理试卷(四)总分评卷人不得分)图11选择题涂卡区mk=10kg注意事项:铅笔削成扁鸭嘴状填涂。条形码粘贴处使用修正带或涂改液。x0-3/g/m0.053.填涂的正确方法:错误方法:1190/124四回回回阻器上标有30071058回回回回表选择0~3V量程。3ABGD9回55V109得分评卷人阻器接人电路的量800补器国变#下列有关该洗衣机参数的估测,最符合实际的是…·…A该洗衣机的高度约为20dm200CmC.该洗衣机夏季注人自来水的温度约为25℃申五主國意D.该洗衣机空桶时质量约为2kg电个单公学2.图2为小高同学郊外游玩时,看到的美丽风景,下列说法正确的是图1A天上的白云是光源B.彩虹的形成是由于光的色散C.高山在水中的倒影是光的直线传播形成的D.看到水中的鹅卵石是光的折射形成的实像A.口琴是靠空气柱振动发出声音的图2★★物理试卷模拟四第1页,共6页★★

  • 鼎成原创模考·2025年河南省普通高中招生考试试卷·方向预判卷(一)化学试题

    9:33 0 0中考模拟九年级化学B.pdf::文件预览试卷类型:A2025年陕西省初中学业水考试·临考冲刺卷化学试卷参考答案及评分标准一、选择题(共9小题,每小题2分,计18分。每小题只有一个选项是符合题意的)1. C2.D3.A4.B5.B6.A9.B二、填空及简答题(共6小题,化学方程式2分,其余每空1分,计24分)10.(4分)(1)碳原子排列方式不同(2)2或二或两(3)小(4)液氧11.(3分)(1)金属(2)蛋白质(3)开12.(3分)(1)+2(2)1个水分子(合理即可)(3)4:513.(4分)(1)①>②上浮(2)饱和2014.(5分)(1)有银白色固体析出,溶液由无色变为蓝色(2)H0(3)Fe+CuSO4FeSO4+Cu(化学式错误扣2分)(4)C15.(5分)(1)B(2)不能(3)CaCl+NaCO=CaCO↓+2NaCl(未配、无“」"扣1分,化学式错误扣2分)(4)取少量反应后的上层清液于试管中,滴加NaCO,溶液,有白色沉淀生成(合理即可)三、实验及探究题(共2小题,化学方程式2分,其余每空1分,计13分)16.(6分)(1)集气瓶(2)将燃着的木条放在集气瓶口,若木条熄灭,则已集满反应的速率(3)2H,02(4)可以17.(7分)【表达交流】MgO+H,SO4=MgSO4+H20(化学式错误扣2分)【实验结论】MgSO4H2SO4【作出猜想】C中产生白色沉淀,说明HCI已被消耗完(合理即可)【实验验证】(1)AgNO溶液(2)一【实验反思】反应物是否过量四、计算与分析题(5分)18.(5分)(1)0.2…(1分)(2)解:设参加反应的H2SO4的质量为x。Zn+H,SO4 ZnSO4+H2(1分)9820.5 g…(1分)98_2=0.5g解得:x=24.5g·...(1分)(1分)100g答:略。(其他合理解法也可参照该标准给分)

  • 鼎成原创模考·2025年河南省普通高中招生考试试卷·方向预判卷(一)化学答案

    注意事项:学校班级姓名1.答题前,考生务必将弥封线内的项目填写清楚。考号2.必须使用黑色签字笔书写,字体工整、笔迹清楚。3.请将选择题答案填入试卷侧边答题栏中。弥封线内不要答题3.化学与生活、生产、科技、环境息息相关。1.下列物质不属于电解质的是的依据的是D.该反应是减小的反应C.容器内气体的压强不再变化自发进行的原因是B.可用FeS除去工业废水中的Cu²+、Hg+A.使用含氟牙膏能预防齿B.该反应是放热反应A.该反应是吸热反应求的。A.HSOOOOHAOMB.NaOH0=om下列说法错误的是Db=H△先南公限合OTC. Na2SO(e)0284HAHA(a)oMOMD.SO(3)OT+(e)2oMS点人中28+(e).0oM(a)2oM联5(1)(8)0+(e)i2开头语续写两段,使之构成一篇完整的新高考·新突破6.常温下,下列各组率A.用浓硫酸与5.下列实验设计和操8.下列离子方程7.下列叙述正确的9.25°℃时,下列D.用NaOHA.澄清透明的C.用乙醛作萃B.用饱和碳酸B.用亚硫酸D.合成氨反B.化学衡正A.铝制品在淖D.水电离的C.使酚酞变红B. 0. 1 mol .C.检验溶液A.向NaS2C.精炼粗铜日D.0.1molC.0.1molB.室温下,D.用过量A.NaHCO3c(HCO+c(HC>c(CH苯标

  • 鼎成原创模考·2025年河南省普通高中招生考试试卷·方向预判卷(一)生物试题

    18:09 133高三5.17生物答案(2).pdf转为Word文档,编辑更方便。立即转换高三生物学考试参考答案题序1012答案CBC题序141516答案AD|D【评分细则第1~16 小题为单项选择题,每小题3分,共48分,与答案不相符的,均不得分。1.C【解析】本题主要考查组成细胞的物质,考查学生的理解能力。甘油和脂肪酸是组成脂肪的基本单位,A项错误。健康人体内也含有LDL,B项错误。脂蛋白的组成元素中不一定有S,D项错误。2.B【解析】本题主要考查生态系统的功能,考查学生的理解能力。天敌与猎物间的信息传递具有双向性的特点,B项错误。3.C【解析】本题主要考查DNA 的结构与复制,考查学生的理解能力。RNA 聚合酶也可使DNA 发生解旋,A项错误。复制泡的大小取决于复制起始时间的早晚和解旋的速度,B项错误。C一G 碱基对越多的区域,其结构相对越稳定,不容易解旋,D项错误。4.D【解析】本题主要考查细胞的跨膜运输,考查学生的解决问题能力。图中同向转运氨基酸和 Na+的转运蛋白特异性地结合氨基酸和Na,D项错误。5.D【解析】本题主要考查生态位,考查学生的理解能力。生态位宽度完全重叠不利于生物充分利用环境资源,D项错误。6.C【解析】本题主要考查种群数量的增长,考查学生的实验探究能力。由于大肠杆菌和酵母菌分别培养且种群数量均呈“J"形增长,因此图中培养时间内,种间竞争不是制约酵母菌种群数量增长的主要因素,C项错误,7.B【解析】本题主要考查 DNA 的特点,考查学生的理解能力。细胞生物遗传物质的结构不具有多样性,B项错误。8.A【解析】本题主要考查免疫调节,考查学生的实验探究能力。细胞毒性T细胞不直接参与体液免疫,A项错误。9.D【解析】本题主要考查神经调节,考查学生的实验探究能力。排尿受脊髓的控制,尿意在大脑皮层处产生,A项错误。交感神经不会使膀胱缩小,B项错误。膀胱充盈时,膀胱内牵张感受器 Na+通道的通透性增大,C项错误。10.B【解析】本题主要考查遗传病,考查学生的解决问题能力。该男孩的母亲可能是 TCS 患者,也可能表型正常,A项错误。基因突变不能通过检测染色体组成诊断出来,C项错误。TCS 在男性中的发病率和在女性中的大致相等,D项错误。11.A【解析】本题主要考查细胞自噬,考查学生的解决问题能力。图中与细胞自噬有关的双层膜结构有叶绿体、线粒体、自噬小泡,A项错误。12.D【解析】本题主要考查体液调节,考查学生的解决问题能力。2 型糖尿病患者体内的胰岛【高三生物学·参考答案第1页(共5页)】·SX·素水往往高于健康人的,A项错误。摄入胰岛素不能通过口服的方法,B项错误。相比于少,尿量增多,C项错误。13.C【解析】本题主要考查基因与性状的关系,考查学生的解决问题能力。AG基因的片段大口三品0编辑转Word转图片保存更多

  • 鼎成原创模考·2025年河南省普通高中招生考试试卷·方向预判卷(一)生物答案

    浙江省金砖联盟2024学年第二学期期中高二年级生物学科参考答案一、选择题12345678910BCCDBADDDA11121314151617181920CDCCABCCAD二、非选择题21.(共12分,除特殊标注外每空1分)(1)减少对野生大熊猫的干扰/对野外工作人员的要求低/可持续监测/简便快捷/能调查的动物范围更广泛:信息传递:大熊猫的食物/与其他物种的关系(种间关系):(2)自然选择/进化;净初级生产量/生长(发育)繁殖的能量/生物量;随粪便流向分解者(写到分解者分解即可);呼吸作用以热能形式(写到热能散失即可):(3)就地:改善大熊猫的栖息环境,提高环境容纳量:(写到1点给1分,写全给2分)遗传:直接/直接使用:22.(11分,每空1分)(1)下丘脑-垂体(腺垂体)-肾上腺皮质;分级:细胞内;肝细胞将氨基酸/非糖物质转化为葡萄糖/糖;肾上腺素;(2)细胞因子:刺激细胞毒性T细胞分裂分化成效应细胞毒性T细胞和记忆细胞毒性T细胞/刺激致敏的B淋巴细胞分裂分化成效应B细胞和记忆B细胞;(写出完整的1点给分)(3)InsR/胰岛素受体:摄取、储存、利用:(写全给分)增加:(4)内分泌系统、免疫系统:(写全给分)23.(13分,每空1分)(1)(幼茎中富含分生组织),细胞分化程度低,诱导其形成愈伤组织更容易:(必须写到:细胞分化程度低类似意思)(2)去除原生质体上残留的酶液,防止对细胞的损伤(两点写全给分):X射线处理;荧光较强;(3)聚乙二醇/PEG;两种原生质体的浓度和配比、培养基中的营养物质浓度、温度、融合的时间等:杂种细胞由于融合后在细胞核和细胞质的功能上实现互补,(使细胞恢复正常分裂):(细胞核和细胞质、功能都写到给分)(4)生长素和细胞分裂素的浓度和配比;:(浓度和配比写全给分)植物细胞具有全能性;染色体/基因片段丢失/基因的相互作用;(5)1、2、4;(写全给分)它们杂种植株的PCR扩增结果显示同时含有双亲的DNA片段:(6)原生质体无细胞壁,,(更容易转入外源基因);24.(12分,每空1分)(1)白;总mRNA;保证充分延伸;(2)BamHI和HindII;(写全给分)质粒和目的基因的自身环化、目的基因与质粒的错误连接:(写全给1分)第1页共2页

  • ‹‹ 92 ››
扫码二维码