20.赫尔希和蔡斯的T2噬菌体侵染大肠杆菌实验的步骤是①用带有放射性同位素的物质培养大肠杆菌②离心③带放射性标记的噬菌体与不带放射性标记的大肠杆菌混合培养④搅拌⑤带放射性标记的大肠杆菌与不带放射性标记的噬菌体混合培养⑥检测放射性A.①→③→⑤→②→④→⑥B.③→⑤→①→②→④→⑥C.①→⑤→③→④→②→⑥D.③→①→⑤→④→②→⑥①)21.右图是DNA分子部分结构示意图,下列有关叙述正确的是A>H②④A.①与②交替连接构成了DNA分子的基本骨架B.②是脱氧核糖,④是腺嘌呤脱氧核苷酸T当QOGC⑥C.DNA分子中,嘌呤碱基数量与嘧啶碱基数量不相等D.DNA分子中A一T碱基对比例较高,则热稳定性低22.下列有关“T2噬菌体侵染大肠杆菌”实验的叙述,正确的是A.T2噬菌体也可以在小鼠的细胞中增殖B.T2噬菌体能独立合成自己的蛋白质C.用于培养T2噬菌体的是用35S或2P标记过的大肠杆菌D.T2噬菌体的蛋白质外壳能进入大肠杆菌细胞内23.下列选项对应错误的是选项科学家成就方法或技术A孟德尔孟德尔遗传定律假说一演绎法B萨顿基因位于染色体上的假说类比推理法C艾弗里DNA是遗传物质同位素标记法D沃森和克里克DNA双螺旋结构构建物理模型24.下列关于人体细胞内DNA复制的叙述,错误的是A.主要在细胞核内复制B.复制以两条DNA母链为模板C.复制以4种核糖核苷酸为原料D.DNA复制会消耗能量25.一个T2噬菌体DNA的双链均被5N标记,让该噬菌体侵染在含14N的环境中培养的大肠杆菌,噬菌体在大肠杆菌内增殖4次。下列相关叙述错误的是A.子代噬菌体中只有14个噬菌体含14NB.子代噬菌体中只有2个噬菌体含15NC.子代噬菌体中的DNA分子都含有14ND.有2个子代噬菌体中的DNA分子同时含有14N和15N【2019~2020学年高-年级(下)期中考试生物第4页(共6页)】·20-03-304A·
15.(19分)如图所示,两行光滑金属导轨由两部分组成,左侧部分水,右侧部分为半径r=0.5m的竖直半圆,两导轨间距离l=0.3m,导轨水部分处于竖直向上、磁感应强度B=1T的匀强磁场中,两导轨电阻不计。有两根长度均为l的金属棒ab、cd,均垂直置于水导轨上,金属棒ab、cd的质量分别为m1=0.2kg、m2=0.1kg,电阻分别为R1=0.1Q、R2=0.2Q。现让ab棒以0=10m/S的初速度开始水向右运动,cd棒进入半圆轨道后,恰好能通过轨道最高位置PP'。cd棒进入半圆轨道前两棒未相碰,重力加速度g=10m/s2,求:(1)cd棒刚进入半圆轨道时,cd棒的速度大小o2;(2)cd棒刚进入半圆轨道(未离开磁场)时,Qb棒产生电能的总功率P;(3)cd棒刚进入半圆轨道时,与初始时刻相比,两棒间距减少量△x。
又D为边BC上一点,所以存在实数t,使得BC=tBD所以丽-号C+号-号助+号酞3因为A,P,D三,点共线,所以2=1,则=2’即BC-币,所以AC-A店=是A币-A),用为部怎整里得AD-A+号AC响·-又AD=xAB+yAC,3.已知点P是边12所以工(10【解析】建立如所以-号(2)取边AB的中,点M,连接OM,OE,则OM⊥AB,OE⊥AC,所以Ad,A店-号A,Ad·AC-2ACp又|AB|=lAC1=2,设P(x,y),所以a0:A市=A0(信A+号aC-Ad.A+号Ad.AC-君A+号AC=音+号-2.(2-3x,2-(20分以M青12021一2022学年度高三一轮复周测卷(十二)+数学·面向量的应用(含正、余弦定理)4.已知△AB((考试时间40分钟,总分100分)则b=一、选择题(本题共6小题,每小题6分,共36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.已知向量AB=(1,2),AC=(cos0,sin0),则△ABC面积的最大值为【解析】医A号B号csin2C-siD.1a2+b2-【解析】因为AB=(1,2),AC=(cos0,sin0),所以AB=√1+2=5,lAC1=√cos0+sin2日=1,cosA2abAB ACA8:AC-5cos9+2gsin0=sin(0+p),其中tamp=2,所以sinA=cos(0+p).S6Ac=}ABcos Asir2选D.,如A-os0+g,片以当os(0+g)-1,中9+9=26k长Z时,Sa取最大值为,故选C5.在△ABA.∠AE2.已知△ABC为等边三角形,AB=2,设点D,E满足BD=DC,配=号Bi+}BC,AD与BE交于点P,则时【解析】BC=A号B.1、t8C.2D.3【解折)国为配-号Bi+BC,所以B配-号配+号E试+}眩+}E式,所以EC-2A正,所以E为AC的个靠近A的三等分点.又因为BD=DC,所以D为BC的中点过E作EF⊥AD于F,如图·4·新高考片新高考
Belinda wrote standards after school while I gave her another lecture on behavior.Thenext day,I caught her fighting with Jose again.I shouted angrily across the room to askwhy they were fighting.Again.Jose accused Belinda of calling him a bad word.Belinda had finally earned a home visit.I told her that I would walk her home afterschool and talk to her mother in person.And for the first time all the week,Belinda became silent.For the rest of the day,she sat still in her chair,even with kids teasing her."It's not going to work,younglady."I told her,"You already earned a walk home,and behaving now isn't going tochange that.”When the final bell sounded,I took Belinda by the hand,and we began the two-block walk to her house.Belinda took me through the gate to her yard and she wentinside to get her mother while I waited outside."Where have you been,girl?"a voice screamed.Babies cried loudly inside."My teacher's here,"Belinda said softly,and I still couldn't see inside through thefront door."Hello!"a deep voice barked.Then the door opened,and a bare and miserableroom with broken windows came into view.A rather skinny,short woman walked out.“Uh,I'm Mrs.Brassell,Belinda's teacher..”“What'd she done this time?”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。I suddenly decided to try a different way.The next day at school,Belinda gave me a big hug.
o46l令.127B/sa@057%110:09造。一天批男于徐系的陶艺乙冢和跨乔艺不家,以熟的技乙、开孜的心胸和敏究的乙不感见,赋了陶艺的生命力,奠定多元发展格局。⑥一方面,国内外学术交流和展览十分活跃,为陶艺创造了良好的外部环境。许多陶艺家在日益频繁的学术交流、展览活动中得到启迪,借鉴新的艺术创作观念和表现形式进行陶艺创新,在国际舞台赢得赞誉。一些创作者甚至在变形、开裂、气泡、淌釉、失透或蒸染等一系列与烧造相关的形态缺陷中,发现和发屁宫有宙美价值的陶艺语言,丰富造型、加强表现力。尽管有一些创作并不十分成熟,却也展现了陶艺1/8【高三素质拓展模拟(一)·语文第1页(共8页)】A·SZTZ活跃和多元的发展态势,显示出创作者对陶艺审美价值和文化价值认识上的深化。⑦另一方面,陶艺越来越受到各界艺术家青睐,各地的画家、书法家、雕塑家等来到景德镇陶溪川一以陶瓷文化为主体的创意园区,进行艺术创作。他们以活跃的思维和独特的视角,将其他艺术门类的美感融入陶瓷艺术创作之中,拓展了陶艺表现空间,进一步推动了现代陶艺的融合创新,为其注入新的美学意蕴。(摘编自吕品昌《陶艺:传统与现代的交响》)1.下列关于原文内容的理解和分析,正确的一项是(3分)A.始终追求超单纯物用、重审美价值精神品格的中国陶瓷文化能体现中华民族文明成就和精神风采。B.中国现代陶瓷艺术没有照搬西方,而一直注重突显自身的文化品格,强调个性和现代审美的表达。C.由器物表达特定的艺术趣味和美学追求,保证中国精神的传承,陶艺不必刻意突破“器”的制约。D.陶艺追求技与道、实用与审美、传统与现代的辩证统一,不因具实用性而损伤陶艺作品艺术价值。2.下列对原文论证的相关分析,不正确的一项是(3分)A.文章举实验陶艺、观念陶艺的例子,目的是论证中国现代陶艺创作以形式美为准则,融入哲学理念,出现很多分支流派。B.文章分别从感性认识和理性认识的角度,阐述了随陶艺理论深入,陶艺家对陶艺的民族艺术特质逐渐形成的两种创作观念。C.文章阐述现代陶艺对“火”美学创造潜能的挖掘,更大程度对“泥”特质的利用,均体现了陶艺家对传统陶艺的再探索。D.文章后半部分采用了“总一分”的结构,介绍了陶艺全方位介入当代艺术创造,陶艺家和跨界艺术家对陶艺的发展。3.根据原文内容,下列说法不正确的一项是(3分)A.青瓷推崇“玉”的品质,把如玉胜玉、无饰为饰作为最高境界,为内在地促进现代陶艺的发展奠定了思想根基。B.陶艺进入转型期,新老艺术家的交替,艺术观念、审美取向的转变,赋予了陶艺新的生命力,奠定多元发展格局。C.一些创作者在变形、开裂、气泡、淌釉、失透等一系列与烧造相关的形态缺陷中丰富陶艺,作者对此持肯定态度。D.各界艺术家将其他艺术门类的美感融入陶瓷艺术创作中,既拓展了陶艺表现空间,也推动了现代陶艺的融合创新。(二)实用类文本阅读(本题共3小题,12分)阅读下面的文字,完成4-6题。材料一:“非物质文化遗产”这个名词如今越来越普及了,每到年节,非遗老字号食品、非遗手工制品、非遗民俗活动等就会集中开展线上线下的展示和展销活动。“非遗”承载着中国人的文化乡愁,是中国人生活方式思想观念的载体。和正式的史书相比,非遗所记录的历史亲切、朴素而丰富,充满了人情味儿和烟火气。就拿春节来说,已经列入国家级非遗名录的与春节有关的非遗项目就有200多个,诸如舞龙、舞狮、灯会、庙会、年画、剪纸、社火…不胜枚举。丰富多彩的非遗展示出了中华文化的深厚与多样,所营造出的节日氛围是其他事物难以替代的。许多非遗项目诞生于农耕时代,是农业文明特有的产物。随着中国加速进入现代化社会,曾经伴随着中国人祖祖辈辈日常生活的事物也难免渐渐消失。比如,过去中国人几乎家家户户都备有扇子,在文人墨客的手中,扇子发展成一种文化。但有了空调,扇子的必要性就下降了,许多制作扇子的手工技艺后继乏人。现代纺织工业发展起来后,传统的土布织造技艺就面临失传的危险。现在造房子普遍使用钢筋水泥,而传统的夯土建筑就很少见到了。【高三素质拓展模拟(一)·语文第2页(共8页)】A·SZTZ非遗的价值不仅仅在物质本身,更在于非遗所承载的文化记忆,因此,是不能轻易丢弃的。非遗尽管来自于过去,但仍然可以融入现代生活。许多非遗技艺的价值还有待进一步挖掘。比如,夯土建筑的特点是冬暖夏凉、取材方便、造价低廉,虽然现在很少见到新建的夯土建筑,但通过现代技术的加持,夯土的硬度和承载力可以达到极高的标准,用现代夯土技术建造的房屋不但美观而且节能。一些建筑师正在推广现代夯土建筑。现代纺织技术造出来的布匹尽管很舒适,但依然替代不了土布的质感。一些时尚人士偏爱传统手工织造的土布,侗族亮布、扎染、蜡染等颇为流行。在网店里,这些带着乡土气息的非遗产品一直很畅销。新时代,人民更加渴望美好的生活,而非遗正是创造美、欣赏美,正是切合时代需要的。现在所应做的就是进一步挖掘和创新非遗中所蕴含的美。比如传统图案、传统设计中所蕴含的体现中国传统审美的元素如何与现代生活相融合。有的非遗项目,如苏绣和世界知名品牌合作开发手表,融古典与现代于方寸之间,令人惊艳。非遗,只有融入生活,才不会被生活遗忘,才能让人们记住文化的乡愁。(摘自《将非遗融入生活,记住文化的乡愁》,《人民日报》2021年2月18日)材料
生运用光合作用的原理、外界因素对植物光合作用的影响等知识解答相关问题,主要考查考生获取信息的能力和运用所学知识解决生物学问题的能力,体现了生命观念、科学思维的核心素养,突出基础性、综合性的考查要求。【解题分析】(1)卡尔文循环的场所是叶绿体基质。从图中可以看出,三碳糖磷酸可以在叶绿体中直接转变为葡萄糖;另外,三碳糖磷酸产生以后,运出叶绿体转变成蔗糖,蔗糖水解产生的葡萄糖可以进入叶绿体。(2)根和茎中的淀粉是蔗糖通过韧皮部中筛管运输到根和茎中产生的,所以如果磷酸转运器失去作用,则因为蔗糖的量减少,根和茎中的淀粉含量也会降低。如果叶绿体上的葡萄糖转运器发生障碍,则蔗糖水解成葡萄糖和果糖的过程会减弱,则有更多的蔗糖会运输到根和茎中,所以土豆和红薯的产量会提高。(3)从图2中可以看出,正午时刻光合速率明显降低的是B植物。植物A夜间吸收CO2而白天不吸收CO2,但只有白天进行光合作用,所以可以推测该植物夜间吸收的CO2在叶片中转化为其他物质,白天再分解产生CO2供光合作用利用。(4)植物A在夜晚吸收C○2较多,可能其生活环境白天气温较高,白天气孔关闭可减少水分散失,A项正确。与植物B相比,中午植物C没有出现“午休”现象,植物C利用低浓度CO2的能力可能较强,B项正确。上午10点突然降低环境中CO2浓度,短时间内植物A的光合作用几乎不受影响,细胞中C含量基本不变;短时间内植物B、C细胞中C不能合成但还原仍然进行,因此C含量下降,C项错误。图中m点表示光补偿点,植物缺镁会导致m点向右移动,D项错误。23.(1)标记重捕法(2分)第一次被捕捉并标记后释放的田鼠,第二次被捕捉的难度大于第一次被捕捉的难度(或标记的田鼠部分死亡、标记物脱落、标记的田鼠部分迁出该区域,合理即可)(2分)(2)(负)反馈调节(2分)自我调节能力(2分)(3)迁入率和迁出率(2分)随着种群数量的增加,社群压力增大,导致种群出生率下降而死亡率升高(3分)【命题意图】本题以社群压力限制自身数量增长的机制及与种群数量变化的关系为情境,要求考生运用种群密度的调查、种群数量的变化、反馈调节、生态系统的自我调节能力等相关知识解答相关问题,主要考查考生获取信息的能力和运用所学知识解决生物学问题的能力,体现了生命观念、科学思维的核心素养,突出基础性、综合性的考查要求。【解题分析】(1)田鼠的活动范围大、活动能力强,所以调查其种群密度采用标记重捕法。因第一次被捕捉并标记后释放的田鼠,第二次被捕捉的难度大于第一次被捕捉的难度(或标记的田鼠部分死亡、标记物脱落、标记物脱落、标记的田鼠部分迁出该区域),导致所得数据大于实际数量。(2)社群压力的变化会影响个体激素的分泌,激素的分泌会影响种群数量,进而影响社群压力,这种调节机制是(负)反馈调节,该机制也是生态系统自我调节能力的基础。(3)影响种群密度的直接因素除了出生率和死亡率外,还有迁入率和迁出率。从图中可以看出,当种群数量超过K/2时,社群压力还渐变大,种群出生率下降而死亡率升高,所以种群数量增长速率会下降。24.(1)更容易得到产生S蛋白抗体的B林巴细胞(2分)(2)B淋巴细胞不能大量增殖(,骨髓瘤细胞可大量增殖)(1分)克隆化培养和抗体检测(1分)小鼠腹腔内(1分)(3)蛋白质分子的结构规律及其与生物功能的关系(2分)改造或合成基因(1分)(4)非变异新冠病毒与德尔塔变异株的抗原结构相同或相似(2分)【命题意图】本题以新冠病毒单克隆抗体的制备为情境,要求考生运用单克隆抗体的制备的知识解答相关问题,主要考查考生获取信息、运用所学知识解决实际问题的能力,体现了生命观念、科学思维、社会责任的核心素养,突出基础性、应用性的考查要求。【解题分析】()与灭活新冠病毒相比,新冠病毒的S蛋白成分单一。制备新冠病毒的单克隆抗体时,研究人员向小鼠体内注射新冠病毒的S蛋白,更容易得到产生S蛋白抗体的B淋巴细胞。(2)从免疫小鼠体内获得的B淋巴细胞可以产生抗体,但不能无限增殖,与骨髓瘤细胞融合后获得杂交瘤细胞,既可以产生抗体又能无限增殖。筛选获得的杂交瘤细胞还需要进行克隆化培养和抗体检测,最后将杂全国100所名校最新高考模拟示范卷·参考答案第5页(共6页)【22·(新高考)N叮·生物学(三)·LN】
2021~2022学年高三押题信息卷语文(一)参考答案1,A(“是抽象而模糊的”错,曲解文意,原文有“我们此处采用广义上的‘话语?,既指话语本体,也指被喻化的‘实体话语”,说明广义上的“话语”有明确所指,并非“抽象而模糊的”。)2.D(“引证法”错,文章主要用的是例证法。)3D(A项,“体现了一个国家在全球无可取代的地位以及在政治、经济等领域的实力”错,于文中无据。B项,“成为新时代的引领者”表述模糊,由第三段“这些范畴的提出…使中国成为全球话语体系建构的引领者”可见,是“成为全球话语体系建构的引领者”。C项,“霸权国家的‘退群’行为为我国加人新成立的区域话语空间组织提供了良机”错,曲解文意,根据原文,霸权国家的“退群”行为是让我国有机会“及时补缺”,而非为我国加人新成立的组织提供良机。)4.C(A项,“教育部召开全国‘双减'工作推进会以来”概述不准确,原文是“教育部召开全国‘双减'试点地区工作推进会”,“全国各地”扩大范围,原文是“各试点地区迅速行动,采取有力举措”。B项,“双减'工作影响社会稳定”无中生有。D项,“教师要站在‘两个大局'的历史高度,有开放的视野,就必须汲取世界各国优秀教师的有益经验”曲解文意,原文是“要以开放理念拓展和充实教师发展体系,要站在‘两个大局'的历史高度,着眼教育的未来,汲取世界各国教师发展的有益经验,培养教师开放的视野”,“要”的主语是国家,而不是“教师”个体。)5.A(“超四成家长”错,材料二图1中不再给孩子报课外培训班的家长和改由自己辅导的家长可能存在交叉,两项不能简单相加。)6.①党中央:发挥领导作用,作出决策,研究部署各项工作任务。②各试点地区:提高思想认识,吃透文件精神,落实好“双减”政策要求。③教育部门:做好协调工作,实施联合治理,推动各有关部门密切配合,形成合力。④学校:培养适应“双减”的教师队伍,做好课后服务,满足学生成长需求。⑤家长:要转变教育理念,让孩子健康成长。(答三点得4分,四点得5分,五点满分,意对即可)7.A(“比拟”错,应是“比喻”。)8.①上岸”表面指主人公老圣在禁渔政策实施后,离开水面,到岸上定居。②又指主人公放弃捕捞,转而“给鱼和湖赎罪”,守护湖泊和鱼类。③这一标题具有象征意义,表达人与自然应该和谐相处的主题。(每点2分,意对即可,其他答案酌情给分)9.①小说在短小的篇幅中设置精妙的结构,既有前后对比,又有前后照应。②小说的主人公老圣朴实的形象鲜明生动,既贴近现实生活,又具有新时代特征。③小说的主题体现了强烈的时代性,符合新时代可持续性发展的理念。(每点2分,意对即可,其他答案酌情给分)10B(原文标点:延年日:“将军为国柱石,审此人不可,何不建白太后,更选贤而立之?”光乃引延年给事中,阴与车骑将军张安世图计。)11.A(A项考查“乙丑”的文化内涵,中国古代用十天干十二地支两两相配用于标记年、月、日、时,这就是干支历。“乙丑”既可用于纪年也可以用于纪月、纪日、纪时,本文中的“乙丑”即为“乙丑日”,用于纪日。)12.C(“汉宜帝亲自驾车登门慰问”理解有误。材料中的“车驾自临问”应理解为“宣帝亲自登门慰问”。)13.(1)(汉武帝)后元二年春二月,皇上病重,霍光哭着问道:“万一陛下您不幸离世,应当由谁继承皇位呢?”(“笃”“不讳”“嗣”各1分,句意通顺2分)(2)想要废天子而另立霍禹为帝,恰逢事情败露,霍禹被腰斩,各女眷兄弟都被处以死刑。(“会”“发觉”“要”各1分,句意通顺2分)文言文参考译文:汉武帝后元元年,钩弋夫人所生的皇子刘弗陵,只有几岁,身体就长得高大壮硕,又聪慧机智,汉武帝特别疼爱他,想【高三押题信息卷·语文(一)参考答案第1页(共2页)】
《双语学报》2023一2024学年高二SD版·新教材新高考第34期测试题参考答案及部分解析第34期测试题参考答案1-5 ABBCC6-10 BCACB11-15 ACBCB16-20ACAAB21-25 BDCCB 26-30 DACCD31-35 BDBCA36-40 EFGAC41-45 BDBCA46-50 DCBDA51-55 DCBAC56-65(One possible version)56.whose57.to enhance58.description59.primarily60.flowing61.be removed62.in63.less64.the65.recipes写作(One possible version))第一节Ma Jun,one of the most celebrated mechanical inventors in ancient Chinese science andtechnology history,serves as a great inspiration to me.Despite being born into poverty andsuffering from a stutter,Ma Jun was a brilliant thinker who excelled at solving complexmechanical problems.His determination and passion for mechanics led him to invent agroundbreaking irrigation truck that utilized human power to lift water from low areas to higherones.Ma Jun's life story is a powerful reminder that success belongs to those who persevere throughadversity and never give up on their dreams第二节Paragraph 1:Something inside me encouraged my hand into the air.I was already obsessed with reading andbooks,but the idea of writing anything had never occurred to me until then.After telling me somerequirements,Mrs Brown assigned the article to me.Although it was my first attempt at creativewriting,the experience of performing in the chorus gave me so much to write about.I describedthe hard work it took to perfect our performance and the thrill of being on stage.Out of myexpectation,my article won the praise of Mrs Brown,which made me very proud.Paragraph 2:The following year,I became an editor of the school newspaper,which made me feel I hadfound my calling.I constantly wrote articles and competed in writing competitions,winning someprizes.A few years after graduation,on the seventieth anniversary of the founding of the school,Imet Mr.Baumgartner and expressed my gratitude to him.If Mr.Baumgartner hadn'trecommended me to the school chorus,which set me on the path to performing with the All CityHonor Orchestra and receiving that invitation to write about it,I might have never uncovered mypassion for writing.I do believe when one door closes,another opens;what you should do is seizethe opportunity and shine.第34期测试题部分答案解析阅读理解A导语:本文是一篇应用文,属于“人与社会”主题语境。文章主要介绍参加商业分析海报比赛的相关事宜。2l.B,理解具体信息。根据Presentations.部分.must have at least one author who is a member
高三第一轮复周测卷·化学周测卷十七沉淀溶解衡A.25℃时,RS0,的Kp为4.9×105B将浓度均为6X105mol·L的RC,Na,CO,溶液等体积混合后可得到RCO,沉淀(40分钟100分)C向c(CO)=c(SO)的混合液中滴加RCL2溶液,首先析出RSO,沉淀D相同温度下,RCO,在水中的K,大于在NaCO,溶液中的Kc(SCN)/(x10 mol-L-)高考对接点考情分析。微信扫码6常温下,某研究小组用数字传盛器探究A©CN的沉淀溶解衡学疑难点沉淀溶解衡是高考频考点,在高考中常以选择题或非选择题的形式考查(AgSCN是白色沉淀)。实验测得悬浊液中溶解的SCN浓度变化如溶度积常数的相关计算图所示,其中a点表示ARSCN溶于KNO,溶液形成的悬浊液。下列滚动知识点溶液中的离子衡;浓度的计算;化学反应的热效应等说法不正确的是c(滴加KI溶液,典型情境题1、2、6、9、10、12观看微课视频课外题解析A图中b点可能加了少量水稀释下载复课件B.图中c点后有黄色沉淀生成0.080100120140160时间/s可能用到的相对原子质量:H1C12N14016Mg24P31C35.5Cr52Fe56Cu 64 Pb 207C,图中d点溶液中有c(Ag)
【答案】A【解析】【详解】①③:电影需要在美术层面上突破和叙事新路径的探索,当穿越千年的诗句透过银幕与观众相遇,与回响在历史深处的吟诵一同“唤醒”了观众骨子里的文化基因。“中国式浪漫的风行得益于中华优秀传统文化的时代化表达,中华文化强大的凝聚力和连续性,①③符合题意。②:对于传统文化,要批判继承,推陈出新,而不是回归传统文化,②错误。④:材料强调的是对传统文化的创新,而不是对传统文化内涵的改造,④排除。故本题选A。13.甲公司和乙公司签订货物买卖合同,合同履行地为北京,双方约定一旦发生纠纷要将纠纷提交北京仲裁委员会进行仲裁。后因国际市场情况发生变化,甲公司单方面通知乙公司解除该买卖合同,乙公司不同意,于是向北京仲裁委员会提起仲裁。甲公司得知乙公司提出仲裁申请后向北京市东城区人民法院提起诉讼。在这种情况下()①甲公司可以解除合同,但要承担违约责任②乙公司在规定期限内可以向人民法院提出上诉③人民法院应该受理甲公司的诉讼请求④甲公司不履行仲裁裁决,乙公司可以申请人民法院强制执行A.①③B.①④C.②③D.②④【答案】B【解析】【详解】①:甲公司单方面通知乙公司解除该买卖合同,乙公司不同意,可知甲公司违约在先,根据我国合同法,合同因违约解除的,违约方要承担违约责任,因此,甲公司可以解除合同,但要承担违约责任,①正确。②:根据或裁或审制度,乙公司己向北京仲裁委员会提起仲裁,甲公司就不得向北京市东城区人民法院提起诉讼,也就不涉及乙公司提出上诉的问题,②错误。③:双方约定一旦发生纠纷要将纠纷提交北京仲裁委员会进行仲裁,乙公司向北京仲裁委员会提起仲裁。因此,人民法院不会受理甲公司的诉讼请求,③错误。④:仲裁裁决具有法律约束力,如果当事人一方不自觉履行仲裁裁决,另一方可以向人民法院申请强制执行,因此,甲公司如若不服裁决,乙公司可以申请法院强制执行,④正确。故本题选B。14.2023年2月,某村村民刘某承包村集体田地用以养殖生态稻田鱼。4月20日,该村遭遇大雨。雨后刘某发现自己养殖的稻田鱼大面积死亡。后查,附近处在位置较高处的一化工厂趁大雨私自排放未经处理的第8页/共17页
18.(14分)铅渣由多种氧化物及它们相互结合而形成的化合物、固溶体、共晶混合物所组成。对铅渣进行综合利用,回收其中的有价金属(Cu、Fe、P.n,Sb)的部分工艺流程如下:硫酸氨水、NH,HCO过量褐煤Ca0→挥发烟尘→酸溶→转化→PhC0,铅渣→还原焙烧含锌滤液·还原铁磨矿磁选H,0,溶液硫酸酒石酸氨水NaS→磁选尾矿→氧化酸浸→过滤洗涤沉梯沉铜滤渣Sb(OH),已知:①常温下,Kp[Cu(0H)2]=2.2×10-”,K,[Sb(0H),]=1.25×100CusK(NH·H,0)=1.8×10。②金属离子浓度等于1.0×10-5mol·L-时,可认为其恰好完全沉淀(1)P%位于第六周期,与碳元素同主族,其价层电子排布式为(2)“还原焙烧”时,Fe,SiO4发生反应的化学方程式为(3)挥发烟尘中的主要氧化物为Pb0、Zn0。①区分挥发烟尘中的氧化物是晶体还是非晶体的最可靠的科学方法为②“转化”过程中,发生反应的化学方程式为(4)“氧化酸浸”过程中,若将物质的量为2mol的Cu-Sb合金(其中Cu与Sb物质的量之比为a:b)氧化,至少需要H,02的物质的量为mol(用含a、b的式子表示)。(5)“过滤洗涤”过程中,加人酒石酸(表示为C,H,0。)发生如下配位反应:Cu2++4C,H,0。[Cu(C,H,0)4]-+8HBralaSb3++6C,H,0。[Sb(C,H,06)6]°-+12H①上述两个配合物中,提供空轨道的元素为(填元素符号)。②“过滤洗涤”时,用酒石酸稀溶液洗涤滤渣而不用水。用酒石酸稀溶液pErs洗涤可减少金属离子的损失,原因为(6)“沉锑”过程中,锑恰好完全沉淀时,溶液中(NH):c(NH·,O)=()一种铅卤基钙钛矿的晶胞结构如图所示,其中八面体BYP体心为P乃,顶点为B,晶体中各八面体顶点相连。①该晶体的化学式为②若该晶体的晶品胞以Cs为顶点,则B在晶胞中的位置为化学模拟测试(一)第6页(共8页)
上进联者更专业更放心一站式考试服务专家2023一2024学年江西省高三年级二轮复阶段性检测化学参考答案1.【答案】c【解析】砖雕的主要成分是硅酸盐,A项不符合题意:玉带扣的主要成分是硅酸盐,B项不符合题意:云纹铜五柱器的主要成分是青铜,属于金属材料,C项符合题意;水晶的主要成分是二氧化硅,D项不符合题意。2.【答案】B【解析】NOH中阴、阳离子之间存在离子键,氢氧原子之间存在极性键,A项正确;P4分子空间结构是正四面体形,1个P分子含6个P一Pσ键,B项错误;H20、PH分子正、负电荷中心均不重合,它们是极性分子,C项正确;PH分子中P原子价层有4个电子对,VSEPR模型为四面体形,D项正确。3.【答案】D【解析】恒压滴液漏斗能衡漏斗与容器内气压,使液体顺利下滴,D项符合题意。4.【答案】B【解析】1个N2分子含2个π键,标准状况下,11.2LN2的物质的量为0.5mol,含1molπ键,A项错误;12gC的物质的量为1mol,含1ml×4×7=2mol非极性键,B项正确:根据反应式可知,生成1 mol AIN时转移3ml电子,C项错误;AI3+会水解,0.1 mol Al,03溶于足量盐酸,溶液中含A13+数目小于0.2N,D项错误。5.【答案】A【解析】若水中产生H,的过程较乙醇中更剧烈,则水中H一0键极性比乙醇中的强,A项能达到目的;酸性KMO,溶液过量,溶液不褪色,不能判断浓度对反应速率的影响,B项不能达到目的;未标明钠盐浓度,无法比较两种酸的酸性强弱,C项不能达到目的;溴水具有强氧化性,能氧化醛基,D项不能达到目的。6.【答案】B【解析】由题干信息可知,无阳极氯腐蚀,故在该条件下,N2H4的放电能力强于C1,A项正确;由题可知,该电解池采用电解制氢新技术,说明气体1为H2,则a极为阴极,发生还原反应:2H,0+2e=20H+H2↑,b极为阳极,发生氧化反应,N,H4失电子生成N2,电极反应式为N,H4+40H-4e一N2↑+4H,0,B项错误,C项正确;a极反应式为2H,0+2e—20H+H2↑,根据电极反应式知,标准状况下,产生0.1molH,时外电路转移电子数为0.2N,D项正确。7.【答案D【解析】依题意,X为C元素,由化合物的结构可知,Y原子形成3个单键,说明Y原子最外层有3个或5个电子,W能形成6个键,说明W最外层有6个电子,由此知W为S元素,Z与W同主族,Z为0元素。R原子形成1个键,结合原子序数大小,可知:R为F元素,Y为N元素。第一电离能:F>N>0,A项错误;电负性:0>S,B项错误:CF,的中心C原子价层有4个电子对,无孤电子对,空间结构为正四面体形,SF4的中心S原子价层有5个电子对,其中有1个孤电子对,故CF,和SF,的空间结构不同,C项错误:简单氢化物键角:CH,>NH,>H,S,D项正确。8.【答案】C【解析】该化合物含苯环,属于芳香族化合物,A项正确;该化合物含酯基、酰胺基,能发生水解反应(取代反应),苯环上含有甲基,能被酸性KMO,溶液氧化,B项正确;该化合物分子含有2个手性碳原子,C项错误;该有机物中苯环能与氢气加成,酰胺基、酯基不能与氢气加成,故1mo1该化合物最多能消耗3molH,,D项正确。9.【答案】C【解析】尿素的作用是缓慢提供氨气,A项错误;控制温度低于120℃,应该选择“油浴”加热,B项错误;产品是离子化合物,在乙醇中溶解度降低,用乙醇洗涤产品可以降低产品损失,C项正确;产品是结晶水合物,温度高会导致产品失水以及硫酸二氨合锌分解,D项错误。化学第1页(共4页)
One possible version:Nowadays,many students stay up until【写作提示】midnight,resulting in sleep debt.Here are some本文的语篇类型是记叙文,主题语境为人reasons why some students in our school have与自然。作者的妻子在户外发现了两只饥饿的such a bad habit.孤零零的浣熊,她将它们带回家。但是只有作According to the chart,academic pressure is者有时间照顾这两只浣熊。作者起初不喜欢浣the primary reason for students staying up late,熊,但通过长时间的接触,他最终喜欢上了它accounting for 65%.The second leading cause is们。两只浣熊长大后,作者最终选择将它们放addiction to phones,which makes up 20%.归大自然,但还是很担心它们的安危。Meanwhile,those suffering from insomniaaccount for 10%.根据续写第一段所给的段首句可知,作者在院子大门处发现一条有环状条纹的动物尾巴。作者认为这是什么动物呢?他是否会上前查看?再5%of them stay up late for various reasons,根据续写第二段所给的段首句可知,这只动物就such as engaging in their hobbies.是作者之前收养的浣熊Bonnie。.那么,这只浣熊The prevalence of staying up late among和作者会有怎样的互动?同学们展开合理的想象即可。students is alarming.However,our overall well-being should be prior to academic success,let根据续写第二段所给的段首句可知,作者让alone excessive technology use.儿子Jim给浣熊Bonnie拿一根香蕉,但是儿子拒绝了,并告诉作者它会自己找到食物。作者是否认同儿子的观点?作者最后是否让Bonniel回归大自然?这段经历又给作者怎样的感悟呢?第二节阅读下面材料,根据其内容和所给段落开头语One possible version:续写两段,使之构成一篇完整的短文。My son Jim would soon go to college.He desired to leave home andI spotted a ringed tail beyond the gate that openedbe independent.yet I was absent and constantly concerned about whetherhe'd take care of himself.to the woods."Look,Shirley,"I whispered.AndOne day,my wife,Shirley,found two lonely,starving raccoon (though I had no idea if it was one of our raccoons,babies in the woods and brought them home.I hated them,but I knew I hadI called,"Bonnie?Clyde?"The animal turned andto attend to themI cleaned them.made a bed,and fed them.The next morning,theylooked at us curiously.For a frozen moment,wewoke up shortly after Shirley left for her company.But I had my own workfaced off,statue-like.Then I called again,and theto do-writing books at home“Will you feed them?I asked Jim.“Sorry,I'm late for school,"he replied.animal moved in our direction.It was Bonnie,andLater,I asked an expert about raising raccoon babies."The object,"hewe went to meet her.Kneeling,I held out my hand,said,"is to take care of them until they can go back to the woods and takecare of themselves.This fall.they'll be old enough on their own."which she excitedly licked while I rubbed her neck.After that day,I became a day-care"mother"for them,and named"Is she hungry?"I wondered.them Bonnie and Clyde.Before long,they could eat bananas.When Julycame,I built a cage and moved them outdoors"Get Bonnie a banana,"I told Jim,but he said,"No.When they adjusted well,Jim suggested we free them to explore thewoods and look for food."What if they get lost or hurt?I said."Theyshe can find food on her own.""She's a big girl now.should get used to being on their own,"Jim insisted.We then left their doorDon't do anything for her that she can do foropen so they could wander during the day.At night,we called them homeherself,"Jim added.I looked at Shirley and winked.by hitting their food bowls.Still,I was concerned.One afternoon,in the yard,I spotted BonnieTall,broad-shouldered Jim wasn't talking aboutstanding on a tree,eating bananas."Be careful,"I called,rushing for a ladderraccoons.He was talking about parents.I suddenly(梯子)“Let her go,”Jim said.“She's on an adventure.Don't affect herfun.Your excessive concern will cost Bonnie all her field survival skills."realized it was time to let go.After rubbing Bonnie'sWhen September came,the raccoons were six-pound balls with ringedneck one last time,I stepped back.She sensed mytails.One evening,they didn't come home.Jim laughed at my concern.Justrelease and bounded off joyfully into the woods.the next morning,they returned.Near the end of September,they were missing for a week.I thought"Have a good life,"I called after the raccoon,athey were probably gone for good."It's a mistake to try to hold on tocreature that I once hated but left me a gift:toanything that no longer needs you,"Shirley said."What if they're introuble?"I worried.peacefully let my son go and have independence.Weeks later,Shirley,Jim,and I were in the yard.详见答案解析页注意:1.续写词数应为150左右;2.请按如下格式作答。I spotted a ringed tail beyond the gate thatopened to the woods."Get Bonnie a banana,"I told Jim,but he said."No,she can find food on her own."6
5.M:Did you have a good time at the Spring Festival?W:Yes.I went back to my hometown and stayed with my family.川.长对话理解(共5小题;每小题1分,满分5分)听下面一段对话,回答第6至7小题。M:We're going to Shanghai Disneyland this Saturday.Would you like tojoin us?W:Sounds great.I'd love to.M:Oh,good.We're going to take the ten o'clock train.Is that OK?W:That's fine.Where shall we meet?M:Let's meet at the school gate at 8:00.My dad will drive us to thestation.W:OK.Thank you.听下面一段对话,回答第8至10小题。M:Oh,no!W:Bob?What's the matter,dear?M:The blue box is broken and my back hurts.W:Is it serious?M:Nothing serious.I'm just tired.W:Why not stop and have a cup of tea?M:That's fine.W:Let's ask our son.to help with those heavy boxes.M:You're probably right.川.短文理解(共5小题;每小题1分,满分5分)你将听到一篇短文,短文后有五个小题。请根据短文内容,在每小题所给的A、B、C三个选项中选出一个最佳选项。短文读两遍。Today we are going to share Kitty'sschool life.Kitty goes to a high school near New York in the United States.The schoolhas 1100 students aged 12 to 15 years old.Kitty goes to school from Mondayto Friday,from 8:00 am until 3:00 pm.Kitty's day begins in her "home class".This is the room that her groupuses most of the time.Here,her teacher checks that everybody is there.Thenthey listen to school news from the radio station.After that,she has three lessons.At about 11:00 am she has a long breakfor lunch until about 1:00 pm.She has lunch in the school dining hall.After lunch,there are lots of activities that she can do.Kitty likes playing inthe school music club.Her lessons begin again at about 1:00 pm.IV.信息转换(共5小题;每小题1分,满分5分)你将听到一篇短文。请根据短文内容,写出下面表格中所缺的单词,每空仅填一词。短文读两遍。Our hometown has changed a lot in the last thirty years.This is a smalltown near a river.When my parents were young,most people here worked asfishermen.My father was a farmer while my mother was a housewife.Now inour town,a lot of people work in car factories,offices or banks.The factoriesare outside the town,and the offices and banks are in the center.In our town,there are many different places to go in the evenings and atweekends.Young people like going to the museum and the cinema while olderpeople like going to the park and the restaurants.There is a big new sports center in our town and there are footballmatches there twice a month.2
ReplyIve made shopping bags out of Tshirts and dog toys ou ofckpBettyPosted at 10:18 a.m.on IIth February 2024A lot of animals travel from one place to another.We call this migration.Cisfun hobby,but the most important thing is that it makes me fewastefully.In Africa,large animals,like elephants and zebras,migrate to find food and water.Theyusually follow the same ways every year.56.What is special about the hat?A.It came from an old sweater.A lot of birds migrate to find food and better weather,too.They are usually birds that eatC.It was new and expensive.B.It was given by Gina's mum.insects().They spend the summer in northern Europe,because there are lots of insects there.57.Why did Gina give a reply to Tom?D.It was a gift from Gina's sister.In the winter there aren't any insects,so the birds fly south to southern Europe and AfricaA.To draw Tom's attention.Some insects migrate,too.In North America,millions of monarch butterflies fly south to58.What did Betty upeycle mke do toy?C.To further explain her idea.B.To introduce a new method.spend the winter in Mexico,Califomnia and Florida,where it's warmer.They travel 50-65 km eachday and they travel about 1,125 km.D.To express her deep regret.A.Paper boxes.Some fish migrate to breed(繁殖).Salmon(鲑鱼)can swim over20,Oo0 km in their life..B.Shopping bagsC.T-shirts.D.Socks.They are born in rivers in Ireland,Scotland and other places in northem Europe.The young fishClara Daly was sitting on an Alaska Airlines flight from Boston to Los Angeles when sswim down the river to the sea and into the Atlantic Ocean.They live in the ocean until they areheard a worried voice over the loudspeaker:"Does anyone on board know AmericanSiadults.Then they return to the river where they were born.They lay their eggs in the river and thenLanguage?"they usually die.Salmon do this,because their eggs are safer in the river.Other fish can't eat them.Clara,15 at that time,pressed the call button )An air hostess came by and explaincArctic terns(北极燕鸥)travel the furthest when they migrate..They spend the summer in thethe situation."We have a passenger on the plane who's blind and deaf,"she said.The passengArctic,but when winter comes they fly to the Antarctic,because it's summer there.The next year(seemed to want something,but he was traveling alone and the air hostesses couldnthey fly back to the Arctic again.In one year these small birds travel 36,000km from one end ofunderstand what he needed.the earth to the other and back again.Nobody knows how they do it.Clara had been studying ASL for the past year to help blind and deaf people and she63.According to the passage,monarch butterflies in North America migrate toA.find insectsB.look for watershe'd be able to finger spell into the man's palm ()So she rose from her seat,walked towar64.Adult salmon swim back to the river becauseC.find better weatherD.produce youngthe front of the plane,and knelt (by the seat of the passenger named Tim Cook,then 64 yearsA.they won't be eaten by other big fishold.Gently taking his hand,she signed,"How are you?Are you OK?"Cook asked for some watelB.they want to lay eggs in a safer placeWhen the water arrived,Clara retumed to her scat.She came bn biC.they are getting ready to live and then die therewanted to know the time.Oher thrdis,she stopped and stayed forawhileAD.they want to go where they grew up"He didn'teed anything.He was nely and wanted to talk,Clara said65.The example of Arctic terns in the last paragraph is used mainly to showSo for the next hour,she "talked"about her family and her plans for the future.CookA.the distance of migrationrahowhe had become blindvertimeand haredofsdaysraveingC.the direction of migrationB.the purpose of migrationD.the time of migrationEven though he couldn'ts hershednivelyat his facewthc0passenger reported.Scientists believe the Earth is 4.6 billion years old.However,the mountains,valleys ()"Cra was amazing,"an air hostess said in an interview."You could tell Cookasvyhills,rivers,deserts and forests we see today are much younger than that.For example,Mountexcited to have someone he could speak to,and she was such an angel."Qomolangma is about 60 million years old and the Amazon rainforest is only 10 million years old.Cook's reply:“Best trip'I ve ever had..”The youngest sea in the world is the Baltic Sea,at about 15000 years old.59.What was the air hostesses'problem?The Earth is always changing because of volcanoes (k),earthquakes and of course,windA.They had a very difficult passenger.and rain.Some of these changes are very slow and others are quick.Water and ice can make veryB.They couldn't understand the passengergreat changes to the planet.For example,rivers of ice can cut through mountains and make lakesC.They didn't know the passenger's name.and deep valleys.Many volcanoes are under the oceans and sometimes they become new islands.D.They didn't have what the passenger wanted.This is happening in the South Pacific.60.Why did Clara Daly believe she could help?It's normal for our planet to change,but at the moment,scientists think it's changing fasterA.Because she happened to learn some ASLthan usual.Some deserts are growing and many forests are getting smaller.The weather is gettingB.Because she had helped people like Cook.C.Because she thought she might know Cook.wetter in some places and drier in others,and there are more big storms.According to the research,the sea level will continue to rise in the next hundred years.As a result,many cities will possiblyD.Because her grandfather had the same problem61.Why did Tim Cook keep asking for service?be covered by water and much of the most productive farming areas will be lost.Some islandcountries are likely to disappear on the map of the world.A.Because he was hungry and thirsty.B.Because he needed someone to talk to.These changes will bring great harm to the planet.However,they can be beneficial to someC.Because he was afraid of taking planes.people.For example,as the Arctic (is getting warmer,some people in Greenland now ownD.Because he was interested in Clara's story.businesses and sell vegetables they grow on their land.That wasn't possible in the far north 5062.Which of the following words best describe Clara Daly?years ago.Farmers in Greenland like the warm weather and hope it wiHeontinue.A.Brave and clever.B.Beautiful and lovely.How does the writer describe the changes of the Earth in Paragraph2?C.Patient and caring.D.Outgoing and friendlyA.By giving examples.B.By comparing thingsC.By telling stories.D.By listing numbers.2024年九年级英语毕业暨升学模拟考试(一)第5页(供8页)2024年九年级英语毕业暨升学模拟考试(一):第6页(共8页)
冲树卷,新载材prentscmehthat I ok the thete day.kwimeogoeaniadWeshnadwihacalcnd·英语·Irked all my taskithrkerThen wefound three bags respectivelyused formFrom then on,my beyond-busy summer wasgtff,karate stuff dm Wesmooth sailing,during which I learned a valuableputa whiteboard in the kitchen to makeurlesson:If you tried to use the dog's rope as yourkarate belt,it's time to improve your organizational容想输前·实鞭的法代县制塑特数对是酒彩透计票形取计第为原到加铁机百至推积智储领维登深守侧板通
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12.水系Z-CO2电池在碳循环方面具有广阔的应用前景。该电池的示意图如下,其中双极膜在工作时催化H2O解离为H+和OH,并在直流电场的作用下分别向两极迁移。下列说法正确的是A.放电时,Z电极为负极,发生还原反应B.充电时,OH从Z电极通过双极膜到达催化电极发生反应C.充电时,Zn电极上的反应为Zn2++2e=ZnEn(OH)D.放电时,催化电极上的反应为CO2+2H+2e=C0+H20Zn电极双极膜催化电极13.常温下,某酸H2A溶液中含A元素的粒子的浓度之和为0.1moL,溶液中各含A元素的粒子的pc-pOH关系如图所示。图中pc表示各含A元素的粒子的浓度负对数(pc=-lgc),pOH表示OH的浓度负对数[pOH=-lgc(OH)];x、y、z三点的坐标:x(7.3,1.3),y10.0,3.6),z(12.6,1.3)。下列0说法正确的是51②A.曲线①表示pc(HA)随pOH的变化pe 10B.x点到z点对应的变化过程中,溶液中水的电离程度15先减小再增大③C.H2A+A2一2HA的衡常数数量级为10的2002468101214D.pH=4的溶液中:c(HA)<0.1moL1-2c(A2-)pOH二、选择题:本题共8小题,每小题6分,共48分。在每小题给出的四个选项中,第14~18题只有一项符合题目要求,第19~21题有多项符合题目要求。全部选对的得6分,选对但不全的得3分,有选错的得0分。14.小球在液体中运动时会受到粘滞阻力,已知小球所受的粘滞阻力与运动速率成正比。如图所示,一小球在液体的上方某高度处由静止释放,然后落入液体中。下列描述小球在液体内运动的速度)与时间t的关系图像可能正确的是B15.钴60(Co)发生B衰变的同时,会放出两束y射线。其衰变方程为Co一0Ni+e。下列说法正确的是A.钴60的中子数比0Ni的中子数少一个B.B衰变释放的电子是由60Co原子核内的中子转化为质子产生的C.Y射线是60Co原子核由基态跃迁到激发态辐射出来的D.24个60C0原子核经过两个半衰期后只剩下6个高考模拟(一)·理科综合试题第3页(共14页)
大楼摄像头摄像头B地面DD地面C图1图220.(9分)如图,在面直角坐标系中,正方形ABCD的顶点B与原点重合,点A,C分别在y轴正半轴和x轴正半轴上,将正方形ABCD沿x轴正方向移4个单位长度后得到正方形AB'CD,已知正方形ABCD的边长为2,E为AB'的中点,反比例函数y=点(x>0)的图象恰好经过点E.(1)求反比例函数的表达式(2)若反比例函数y=兰(x>0)的图象与正方形A'B"CD'的边CD交于点P,连接DE,ER,求△D'EF的面积(3)连接CD,判断点E是否在线段CD上,并说明理由.DAE(B)C21.(9分)教育部印发《义务教育课程方案》和课程标准(2022年版),将劳动从原来的综合实践活动课程中独立出来.某校为了让学生体验农耕劳动,计划购买A,B两种型号的劳动工具.已知A型劳动工具的单价比B型劳动工具少3元,且用3000元购买A型劳动工具的数量与用3450元购买B型劳动工具的数量相等(1)求A,B两种型号劳动工具的单价各是多少元?(2)该校计划购买A,B两种型号的劳动工具共100个,且B型劳动工具的数量不少于A型劳动工具数量的一半,求购买这批劳动工具的最少费用双基夯实卷(一)数学第5页(共6页)
姑苏城外寒山寺,夜半钟声到客船。—张继《枫桥夜泊》渭城朝雨浥轻尘,客舍青青柳色新。一王维《送元二使安西》东南形胜,三吴都会,钱塘自古繁华。烟柳画桥,风帘翠幕,参差十万人家。柳永《望海潮·东南形胜》……(16)人群会流动,城市一直在原地。它承载集体的记忆,留下个人的足迹。风物人情,历史掌故、情感印象,连接起一卷卷人文简牍。(17)城市广场蕴涵的诸多信息,为人类生活提供了足够丰富的物质线索,因而成为城市空间的华彩部分。作为一种城市建设类型,一种公共艺术形态,一种城市构成的重要元素,城市广场既承袭传统和历史,也传递美的韵律和节奏。(18)广场,是一个城市的脸庞。广场的品质,就是这座城市的品质;广场的气度,就是这座城市的气度。(19)曾经走过许多城市,曾经见识许多广场,曾经置身不少雷同的“广场八股”:低头是铺砖,视见喷泉,仰脸看雕塑,台阶加旗杆,对称中轴线,终点是大楼。空间尺度比例失调,配饰植物很艳俗。脱离了所处的自然环境,丧失了属于自己的独特风格,看不到地域特征,抹杀了人文背景,千篇一律,千部一腔。终至背离了广场的本质,与大众隔膜疏离。(20)在这座并不显赫的边垂城市,竟然意外惊喜地邂逅这样一座广场—静穆地偏安在城市的一隅,仿佛是一则古老的寓言,一个现代的桃花源,一种悠远的几乎被遗忘的文明。不施粉黛,却丰姿绰约,端庄大气。让城市喧嚣的万丈红尘退避三舍,让身心获得彻里彻外的安宁,让人有一种冲动,想要在现时代里复活古圣先贤、唐诗宋词,以哲学和诗歌的名义标榜一方净土。(21)当时忘记打听这座广场的名字,回到住地,问当地朋友,因为我说不出所属的地名,回答语焉不详,各不相同。(22)对我来说,这是一个无名广场。(13)无名广场的一切都显得那么不经意,但我知道,一切又绝对是精心的营造。名字并不重要。重要的是这营造体现出的城市美学,以及由此显示出的对人的尊重。(有册删减)16.下列词语中加点字的字音和字形,完全正确的一项是(3分)A.花圃pǔ迤逦yi简牍dú步履蹒跚pnB.迸发bng蹁跹qian绰约chuo赡前顾后zhanC.粗砺i衣袂jue边垂chui煞费苦心shaD.踯躅zhú承载zài喧嚣xiao退避三舍shě17.下列对文章的理解与分析,不恰当的两项是(4分)A.第②段中“我穿过峡谷般的楼群去看海”承接上文的“南方滨海城市”,“却在不期然间,见到这座广场”总起下文。B.文章善用比喻:第②段把楼群比喻成峡谷,表达了作者对现代都市的不喜厌倦;第③段把花比喻成火,突出他的“惊喜”。C.第(11)段对堤岸、浪涌、天际线、光与影和海鸟的描写,表现了无名广场的环境是“绝对自然的呈现”。
CHOOCH化学高考基本分专练(二十)1,化学与社会、生活密切相关。对下列现象或事实的解释正确的是选项A现象或事实化石燃料燃烧时采取脱硫措施解释C用热的纯碱溶液洗去油污提高化石燃料的利用率D商代后期俦造出工艺精湛的司母戊鼎Na,CO,可直接与油污反应静置后的淘米水能产生丁达尔效应■该鼎属于铁合金制品2.实验室分离F©和A的流程如图。下列说法错误的说明陶米水具有胶体的性质浓盐酸乙醚水Fe、AI酸化已知:Fe+在浓盐酸中生成费色配离子一萃取、分液→反萃取一旅馏[FeC1,门,垓配离子在乙醚-FeA13+(Et2O,沸点34.6℃)中生成缔合A.酸化后,乙醚铁元素在溶液中主要以[FeCL,]形式存在物Et,O·H+·[FeC1]。B.萃取分液时,有机层从分液漏斗上口倒出C.反萃取后,铁元素在溶液中主要以Fe+形式存在1D.蒸馏时,用酒精灯直接加热蒸馏烧瓶以加快蒸馏速度3.金属硫化物(MS,)催化反应CH,(g)十2H,S(g)=CS《g)十4H,(g),既可以除去天然气中的H,S,又可以获得H2。下列说法正确的是(A.该反应的△S<0B.该反应的衡常数K=c(CH,)·c2(H,S)c(CS2)·c4(H2)HS.C.图中所示的反应机理中,步骤I可理解为H,S中带部分负电步骤I步骤下荷的S与催化剂中的M之间发生作用D.该反应中每消耗1molH2S,转移电子的数目约为2×6.02×104.室温下,探究0.1mol·LeSO,溶液的性质,下列实验方案能达到探究目的的是(选项探究目的实验方案溶液中是否含有Fe3+向2 mLFeSO,溶液中滴加几滴新制氯水,再滴加KSCN溶液,观察溶液颜色变化BFe2+是否有还原性向2 mLFeSO,溶液中滴加几滴酸性KMnO,溶液,观察溶液颜色变化Fe2+是否水解向2 mLFeSO,溶液中滴加2~3滴酚酞试液,观察溶液颜色变化DFe2+能否催化H2O2分解向2mL5%H2O2溶液中滴加几滴FeSO,溶液,观察气泡产生情况5.室温下,用含少量Mg2+的MnSO,溶液制备MnCO,的过程如题图所示。已知Kp(MgF2)=5.2×10-1,K.(HF)=6.3×10-4。下列说法正确的是(A.0.1mol·L1NaF溶液中:c(F).=c(Na+)+c(H+)NaF溶液NaHCO,溶液B“除镁”得到的上层清液中:c(Mg+)=KMgF,)MnSOMnCO,c(F-)溶液除镁沉锰C.0.1mol·L1 NaHCO,溶液中:c(CO?)=c(H+)+c(H,CO)-c(OH)D.“沉锰”后的滤液中:c(Na+)+c(H+)=c(OH)十c(HCO)+2c(CO?))1006.二氧化碳加氢制甲烷过程中的主要反应为C0.衡CO2 (g)+4H2 (g)=CH (g)+2H2O(g)AH =-164.7kJ80转化率·mol1CO2(g)+H2 (g)=CO(g)+H2O(g)AH=41.2kJ.mol-C0,实际60转化率在密闭容器中,1.01×10Pa、n起始(CO2):n起始(H2)=1:4时,CO2衡转化率、在催化剂作用下反应相同时间所测得40的CO2实际转化率随温度的变化如题图所示。CH,的选择性可表示为””(CH×100%。下列说法正确的是()20300400500600温度/℃n反应(CO2)伯乐马2024年高考基本分专练·化学·第39页(共62页)
所以,=6化,-)+3=k8-8-9-)+3=24然-18跳+2☑8k2+98k2+9=-327-12k)-18%+27_18k-3)-327-12k+912(3-k)2同理xB=8k3-48k2-98k3+9一·6三2……………13分所以直线的方程为y=-月所以AB与圆相切,.15分将y=-代入9r+8y=81得x=士V7,所以|AB=2√万,又点P到直线AB的距离为,设△PB的周长为m,则△PM8的面积5e=方m×x2行x号解得m=6N厅.22所以△PAB的周长为6万...17分19.(本小题满分17分)解:(1)设P(xo,%)∈C,2=(x,y)∈D,x=2x,y=3yo则C与D存在一一对应,所以集合C=D.5分(2)①取函数y=anx-,其中x∈(0,),y∈(-0,+o),两个集合之间存在一一对应,故(0,1)=(0,+0),………13分备注:函数举例不唯一,只要保证定义域为(0,),值域为R即可,L-2,0

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