(2)结合(1)可得,a=7,b=一6,…6分.原式=(7一6)5=1.…8分21.解:BE=AD,BE⊥AD.……2分理由:‘△ABC与△CDE均为等腰直角三角形,∠ACB=∠ECD=90°,AC=BC,CE=CD.在△BCE与△ACD中,BC-AC∠ECD=∠ACB=90°,EC-CD.△BCE≌△ACD(SAS),∴.BE=AD,∠EBC=∠DAC.…5分如图,延长BE交AD于点F,,'∠BEC=∠AEF,∠EBC=∠DAC,.∠DAC+∠AEF=∠EBC+∠BEC=90°,∴.∠BFD=90°,BE⊥AD.综上,BE=AD,BE⊥AD.…8分22.解:(1)设每套B型号的“文房四宝”的标价是x元,4300-3000+3000=40,…(1+30%)x3分解得x=100.经检验,x=100是原方程的解,.每套B型号的“文房四宝”的标价是100元.…5分(2)100×(1+30%)=130(元),购买A型号“文房四宝”数量为(4300一3000)÷130=10(套),购买B型号“文房四宝”数量为3000÷100=30(套),130×0.9×10+100×0.8×30=3570(元),答:共需花费3570元.…9分(3)设该校买了m套A型“文房四宝”,则买了(100一)套B型“文房四宝”,依题意,得(130×0.9-67)m十(100×0.8-50)(100-m)≥3800,…11分解得m≥40,答:至少购买了40套A型“文房四宝”.…13分23.解:(1)∠ECB;10.…4分(2)证明:如图,作NH⊥BC于点H,.∠1+∠2=90°,∠2+∠3=90°,.∠1=∠3.在△MCP与△PHN中,3X1:2PHB∠C=∠PHN∠3=∠1,PM-PN∴.△MCP≌△PHN(AAS),…5分【数学·参考答案第2页(共3页)】·23-CZ13b1·
A.胜齐于艾陵/为黄池之遇/无礼于宋/遂与勾践禽死于干隧/梁君伐楚胜齐/制赵韩之兵驱十二诸侯以朝天子于孟津B.胜齐/于艾陵为黄池之遇/无礼于宋/遂与勾践禽死于干隧/梁君伐楚胜/齐制赵韩之兵驱十二诸侯以朝天子于孟津C.胜齐/于艾陵为黄池之遇/无礼于宋/遂与勾践禽死于干隧/梁君伐楚胜齐/制赵韩之兵驱十诸侯以朝天子于孟津二D.胜齐于艾陵/为黄池之遇/无礼于宋/遂与勾践禽死于干隧/梁君伐楚胜/齐制赵韩之兵驱十二诸侯以朝天子于孟津“Ae字B.“廉不有初,鲜克有终与求鑫(《归去来兮辞《并序)》两句中的靡字含义相同。C.会稽,古郡名与“会于会山阴之兰亭”(《兰亭集序》)中的“会稽指的是同一个地方。D.“自布冠而将学秦”与“不拘,学于余”(《师说》)两句中的拘字含义相同。12.下列对原文有关内容的概述,不买确的一项是B风A.引用《诗经》中“靡不有初,鲜克有终”,引出始与终的话题,劝谏秦王在取得胜利后,要戒除骄傲的心理,做到善始善终。B.智伯瑶、吴王夫差、梁君开始都取得了很大的战功,但是在胜利之后开始骄纵,最后都被对手杀死,只有善始没能善终。C,劝诫人认为,秦王取得了军事上的重大胜利,威震诸侯之后,如果谨慎到底,王霸之业指日可待;否则,就会后患无穷。D.齐国、宋国在秦楚、魏、韩四国兵力势均力敌而相持不下的局面中显得举足轻重,跟宋、齐两国置身于四国之外有关。我食粗弘R竹队影让条圆保吸13.把文画横线的g包子翻译成现伏汉语靡不有初年完有餐战选建多光荷以知其然?何以呢得地地呢?(二)古代诗歌阅读(本题共2小题,9分)阅读下面这两首诗,完成14~15题。焚书坑什帛烟销帝业虚,新空锁祖龙心居(坑灰未冷山东乱,刘项原来不读书。七律·读《封建论》②呈郭老毛泽东劝君少骂秦始皇,焚坑事件要商量。祖龙魂死业犹在,孔学名高实秕糠⊙百代都行秦政法,十批④不是好文章。熟读唐人封建论,莫从子厚返文王⊙。【注】①祖龙:秦政,皆指秦始皇帝。②《封建论》:是柳宗元的一篇政论文,重点论述周
31.Which of the following can be the best title for the text?靠共售A.Technology for your lifestyle:no matter your age第二节(共5小题;每小题2.5分,满分12.5分)B.Recent advances in technology to help the elderly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C.The development trend of technology in people's life余选项。D.The great impact of technology on the younger generationFour People To Surround Yourself With DailyOften,the people we keep in contact with either make us better or ruin our chances of being aDbetter version of ourselves.36 Below are some people you should surround yourself with:Humans enjoy being with other people by nature,and social interaction is fundamental for everyThe doersaspect of our health.Lack of it can lead to feelings of isolation and loneliness.A strong supportnetwork and solid community bonds promote our emotional and physical health.However,just as withYou must have planned lots of things in your head.However,the question is have you carriedthem out?In most cases,the answer is no.37 If they had been there,you would have donemany other aspects of our lives,there seems to be a limit to how large our personal networks cangrowwhat you had always planned to do.Such people are not afraid to risk it all;they are go-getters.So,Back in 1992,a British anthropologist(人类学家)named Robin Dunbar came up with aif you find someone who is a doer,keep themhypothetical (number defining the maximum sum of meaningful human relationships aThe good listenersperson can have.The number was discovered accidentally while he was studying the grooming38_But the problem is that people today are so self-engrossed(专注自我的)that they)tendencies-a social behavior-of non-human primates.Around that time,researchers hadhardly want to know what's happening in others'lives,and that's why you need a therapist (discovered that the large brain of these primates was a result of their socially complex societies.Theto hear you out.If you find someone willing to listen to your complaints without being judgemental,larger the brain,the larger the animal's social group was likely to be.Scientists could thenhold on to them.theoretically use an animal's brain size to calculate how many members could possibly make up thisThe honest onesgroup.Dunbar applied this theory to humans,and the resulting number was 150.At times,you need people who are pretty honest around you.It might sound harsh,but theyDunbar's number,however,only refers to the limit of meaningful contacts within our socialhelp you make the right choices in your life.These people won't criticise you,but they will give younetwork.It does not account for other relationships.Human social relationships tend to have multiplea better perspective.It is not okay to have only people who are unwilling to be honest with you,forlayers,and extend outward from the individual in concentric ()circles.The innermost circlereasons such as losing your friendship.39contains our loved ones.The subsequent circle holds our good friends.The third circle is reserved forpeople we consider friends,and the fourth is where the limit of 150 can be found.It is possible for aThe adventurous oneshuman to venture into the fifth (500 acquaintances)and sixth(1,500 people we recognize)circles40 There should be some insanity (and adventure as well.If you are not courageousan achievement that has been made much easier since the coming of social media.enough to do something really wild,then get a group of friends who are adventurous and will push32.What do we learn about Dunbar's number?you.You need the push.A.It's a uncertain number.A.Avoid living a boring life.B.It shows the size of our body.B.You will keep making mistakesC.It was discovered by accident.C.You could have even written them down..f径第个t水O共)D.It explains a cultural phenomenon.D.That is because you lack a doer in your life.人33.Which of the following shows human social relationships?E.We are referring to all those who cheer the loudest on your achievements.F.Hence,it is important to be very selective about the people you let in your space.G.Life nowadays is troublesome and we can solve half our problems by just talking it out.YOU第三部分语言运用(共两节,满分30分)第一节(共15小题;每小题1分,满分15分)34.Why is it much easier today to go beyond the fourth circle of human relationships?A.Human brains are becoming larger and larger.阅读下面短文,从每题所给的A、B、CD四个选项中选出可以填入空白处的最佳选项。B.Meaningful contacts grow significantly with age.An Illinois father has graduated from the same college as his daughter,which is a completeC.People are eager to get rid of feelings of loneliness.surprise to the family.D.Social media has greatly contributed to the phenomenonMike Loven,47,41 a bachelor's degree in finance and economics from Grand Canyon35.What is the purpose of this text?University in Phoenix,Arizona,last October.His daughter,Taleigh Loven,23,earned herA.To explain a social mystery.bachelor's degree in psychology.B.To introduce Dunbar's number.As Taleigh 42 at home,Loven walked into the room wearing a GCU alumni (shirt,C.To remember a British scientist.and later,a cap and gown 43 his daughter's.D.To help people treasure friendship."The 44 was a lot of fun,"Loven said."My wife thought GCU had sent my daughter's第45页青于蓝高考英语核按钮综合训练(六)第46页青于蓝高考英语核换钮·综合训练(六)」
读大西洋年均表层海水性质示意图,完成7一8题。 密度kg·m3 盐度%, 温度℃ 1027 37 1026 ① 1025 36 -20 1024 ② 1023 35:10 1022 1021 34 -0 1020 60° 409 209 09 209 40° 60° 7.关于图中①②③三条曲线的含义,组合正确的是 A.① 密度 2 温度 3 盐度 B.① 温度 2 盐度 3 密度 C.① 温度 ② 密度 ③ 盐度 D.① 密度 ② 盐度 温度
燕B.慢跑时,人体肌肉细胞的能量来自有机物的氧化分解立C.水稻叶肉细胞和根尖细胞中ATP合成的场所是相同的100D.细胞生命活动需要的能量都来自ATP80(解斯】发首体是专一性寄生病毒,只能寄生在大肠杆菌细胞内,A错误;慢跑时,人体肌肉细跑的能量:【答案】B要来自细胞呼发,细胞牛政的实质是有机物的氧化分解,B正确:水稻叶肉细胞和根尖细胞中A60成的场所是有差别的,如叶肉细胞中ATP的来源除了细胞呼吸之外,还可来自光合作用,C错误;0020是细胞直接的能源物质,细胞生命活动霄要的能量不是都来自ATP,如光反应的能量来自光能,D餐19.如图为某同学进行“绿叶中色素的提取和分离”实验结果,其中①②③④表示得到的色素带。下列叙述箭的是(①(1)据图1分析,该实验②(均填某形(2)图1中pH为1时,(3)植酸酶的提取工艺④酶活性测定。检测(4)已知雏鸡小肠中的南账量会金的影响,将两种相A.进行该实验时,应使用无水乙醇提取、分离色素酸酶活性,结果TB.若实验过程未加人CaC0,则会导致色素带③④明显变窄是C.色素带①呈现橙黄色,主要吸收蓝紫光,几乎不吸收红光十中,原高盒点第,本【答案】D.色素带④为叶绿素b,其合成过程与Mg元素有关量主货中面以迹风部用合光最则21.(每空2分,共1【答案】A○(I)pH和植酸酶的【解析】进行该实验时,用无水乙醇提取色素,用层析液分离色素,A错误;碳酸钙能保护叶绿素,若实验过程(2)过酸会使植酸酉未加入CaCO,因而会导致色素带③叶绿素a和④叶绿素b明显变窄,B正确;色素带①呈现橙黄色,(3)植酸酶所催化(4)A在含有为胡萝卜素,其主要吸收蓝紫光,几乎不吸收红光,C正确;色素带④为黄绿色,代表叶绿素b,其合成过程需要Mg元素,D正确。22.(13分)20.某科研小组将以菠菜绿叶为材料制备的完整叶绿体悬浮液均分为两组:甲组为对照组;乙组加人适量磷酸研究证实ATP既(P),都在适宜温度和光照等条件下,用“℃标记的“℃02供其进行光合作用,然后追踪检测放射性,结果如下图所示。请发现乙组(CH20)/C,的比值以及“℃标记有机化合物的量均明显高于甲组。下列叙述错误的是(A.差速离心获取的叶绿体应置于等渗悬浮溶液B.叶绿体主要吸收蓝紫光和红光用于光合作用司木工C.Pi将乙组C3化合物还原,导致(CH20)/C3比值高于甲组D.Pi提高乙组的ATP生成速率,导致14C标记有机化合物的量高于甲组以流关的度是通【答案】C【解析】分离细胞器的方法是差速离心法,防止细胞器吸水破裂,分离时应置于等渗悬浮溶液,A正确;叶绿体中的光合色素主要吸收蓝紫光和红光用于光合作用,B正确;乙组充足的Pi利于光反应合成ATP,光明,算二合速率较快,不直接参与C化合物还原,C错误;Pi提高乙组的ATP生成速率,光合速率加快,导致东虽愧四14C标记有机化合物的量高于甲组,D正确。数铁第第Ⅱ卷非选择题(共60分)(1)神经细胞二、非选择题(本题包括5小题,共60分)ATP发生21.(14分)途径是六磷酸肌醇(植酸)广泛存在于谷物、豆类和油料作物中,禽类、猪等单胃动物不能分解植酸,饲料中植酸(2)由图可中的磷因不能被利用而随粪便排出,导致磷浪费。微生物分泌的植酸酶是一种畜禽饲料添加剂,能将植酸分(填中文解为肌醇和无机磷,提高了饲料中磷的利用率,但pH和蛋白酶等许多因素会对植酸酶的活性产生影响。科研(3)为了研人员对某种霉菌产生的两种植酸酶在不同pH条件下相对活性的差异进行了比较研究,结果如下图1。回答下ATP的列问题:
燕B.慢跑时,人体肌肉细胞的能量来自有机物的氧化分解立C.水稻叶肉细胞和根尖细胞中ATP合成的场所是相同的100D.细胞生命活动需要的能量都来自ATP80(解斯】发首体是专一性寄生病毒,只能寄生在大肠杆菌细胞内,A错误;慢跑时,人体肌肉细跑的能量:【答案】B要来自细胞呼发,细胞牛政的实质是有机物的氧化分解,B正确:水稻叶肉细胞和根尖细胞中A60成的场所是有差别的,如叶肉细胞中ATP的来源除了细胞呼吸之外,还可来自光合作用,C错误;0020是细胞直接的能源物质,细胞生命活动霄要的能量不是都来自ATP,如光反应的能量来自光能,D餐19.如图为某同学进行“绿叶中色素的提取和分离”实验结果,其中①②③④表示得到的色素带。下列叙述箭的是(①(1)据图1分析,该实验②(均填某形(2)图1中pH为1时,(3)植酸酶的提取工艺④酶活性测定。检测(4)已知雏鸡小肠中的南账量会金的影响,将两种相A.进行该实验时,应使用无水乙醇提取、分离色素酸酶活性,结果TB.若实验过程未加人CaC0,则会导致色素带③④明显变窄是C.色素带①呈现橙黄色,主要吸收蓝紫光,几乎不吸收红光十中,原高盒点第,本【答案】D.色素带④为叶绿素b,其合成过程与Mg元素有关量主货中面以迹风部用合光最则21.(每空2分,共1【答案】A○(I)pH和植酸酶的【解析】进行该实验时,用无水乙醇提取色素,用层析液分离色素,A错误;碳酸钙能保护叶绿素,若实验过程(2)过酸会使植酸酉未加入CaCO,因而会导致色素带③叶绿素a和④叶绿素b明显变窄,B正确;色素带①呈现橙黄色,(3)植酸酶所催化(4)A在含有为胡萝卜素,其主要吸收蓝紫光,几乎不吸收红光,C正确;色素带④为黄绿色,代表叶绿素b,其合成过程需要Mg元素,D正确。22.(13分)20.某科研小组将以菠菜绿叶为材料制备的完整叶绿体悬浮液均分为两组:甲组为对照组;乙组加人适量磷酸研究证实ATP既(P),都在适宜温度和光照等条件下,用“℃标记的“℃02供其进行光合作用,然后追踪检测放射性,结果如下图所示。请发现乙组(CH20)/C,的比值以及“℃标记有机化合物的量均明显高于甲组。下列叙述错误的是(A.差速离心获取的叶绿体应置于等渗悬浮溶液B.叶绿体主要吸收蓝紫光和红光用于光合作用司木工C.Pi将乙组C3化合物还原,导致(CH20)/C3比值高于甲组D.Pi提高乙组的ATP生成速率,导致14C标记有机化合物的量高于甲组以流关的度是通【答案】C【解析】分离细胞器的方法是差速离心法,防止细胞器吸水破裂,分离时应置于等渗悬浮溶液,A正确;叶绿体中的光合色素主要吸收蓝紫光和红光用于光合作用,B正确;乙组充足的Pi利于光反应合成ATP,光明,算二合速率较快,不直接参与C化合物还原,C错误;Pi提高乙组的ATP生成速率,光合速率加快,导致东虽愧四14C标记有机化合物的量高于甲组,D正确。数铁第第Ⅱ卷非选择题(共60分)(1)神经细胞二、非选择题(本题包括5小题,共60分)ATP发生21.(14分)途径是六磷酸肌醇(植酸)广泛存在于谷物、豆类和油料作物中,禽类、猪等单胃动物不能分解植酸,饲料中植酸(2)由图可中的磷因不能被利用而随粪便排出,导致磷浪费。微生物分泌的植酸酶是一种畜禽饲料添加剂,能将植酸分(填中文解为肌醇和无机磷,提高了饲料中磷的利用率,但pH和蛋白酶等许多因素会对植酸酶的活性产生影响。科研(3)为了研人员对某种霉菌产生的两种植酸酶在不同pH条件下相对活性的差异进行了比较研究,结果如下图1。回答下ATP的列问题:
18.科研人员利用三种动物分别进行甲、乙、丙三组遗传学实验来研究两对相对性状的遗传(它们的两对相对性状均由常染色体上的两对等位基因控制),实验结果如表所示。下列推断错误的是(组别亲本F2性状分离比父AXB4:2:2:1选择F中两对等位基因均杂合的个体进行随机交配CXD5:3:3:1丙EXF6:3:2:1A.三组实验中两对相对性状的遗传均遵循基因的自由组合定律B.甲组可能是任意一对基因显性纯合均使胚胎致死,则亲本A和亲本B一定为杂合子C.乙组可能是含有两个显性基因的雄配子或雌配子致死,则F2中纯合子所占的比例为1/4D.丙组可能是其中某一对基因显性纯合时胚胎致死,则F2中杂合子所占的比例为5/6二、填空题(共64分,除标注外每空2分)19.(18分)浒苔是一种大型绿藻,爆发性生长时会覆盖水面,造成生态灾害,被称为“绿潮草原”。科学家对浒苔进行了一系列实验。回答下列问题:(1)在“绿潮草原”的上、中、下层分别选取浒苔为实验材料,提取和分离色素,发现浒苔的光合色素种类与高等植物相同,包括叶绿素和。由于光合色素不溶于水,可用作为提取液进行提取。随层析液在滤纸上扩散速度最快的色素主要吸收光。(2)分别测定三个样品的叶绿素含量发现,取自“绿潮草原”下层的样品叶绿素含量最高,其生理意义是以适应弱光环境。(3)为了探究光照强度对浒苔光合作用的影响,研究人员使用溶解氧传感器进行数据采样,结果如下表。不同光照强度下的光合作用和相关数据测定记录表光照强初始溶解氧含量终止溶解氧含量间隔时溶解氧变化量光合作用强度/度/kx/mgL/mgL间/s/mgLImg (L'min)16.386.395000.010.00126.406.875000.470.0564106.417.825001.410.1692①该实验的自变量是依据记录表信息,可得出的结论是
15.影响河床海拔2100m位置变化的主要气候因素是 A.气温 B.降水 C.光照 D.风力
4,一种清洁、低成本的三步法氯碱工艺的工作原理如图所示。下列说法错误的是石墨Na4 MnONao44 MnONaOH溶液NaC1溶液HCl溶液进第一步:生产NaOH第二步:提取Na*和Cl第三步:生产C2A.与传统氯碱工艺相比,该方法可避免使用离子交换膜B.第一步中的阳极反应为Nao.44MnO2一xe-Nao.-MnO2+Na密C.第二步放电结束后,电解质溶液中NaC1的含量增大D.第三步,CL2在阳极产生15.室温下,0.1mol·L1的NaOH溶液与盐酸酸化的15 pH0.02mol·L1的FeCl溶液在滴定时的t一pH曲线如图所10pH=11.8示{已知Kp[Fe(OH)3]=4.0X10-38,lg2=0.3}。下列说法正确的是A.图示为用FeCL溶液滴定NaOH溶液的t-pH曲线bpH=xB.由曲线上a点的pH可算得室温下Fe+的水解衡常数10002000/封K()与02完全相等C.若曲线上b点表示Fe+恰好沉淀完全,则此时x=3.2O联西(8D.c点存在关系:3c(Fe3+)十c(H+)=c(OH)+c(CI)题序3456789101112131415答案二、非选择题:本题共4小题,共55分。线16.(14分)金属钼在工业和国防建设中有重要的作用,其化合物钼酸钠晶体(Na MoO,.·10H,O)可制造金属缓蚀剂。由钼精矿(主要成分为MoS2,含有少量不反应的杂质)制备钼及钼酸钠晶体的工艺流程如图。回答下列问题:空气Na,C0(aq)焙烧碱浸操作2操作1滤液足量HCl→NaMo0410H,0(3)月(0)高温S02等废气C02废渣操作3高温固体金属钼H,(1)S位于元素周期表中区2)焙烧过程中采用“多层逆流(空气从炉底进入,箱。经粉碎后从炉顶进人正烧”,图1为焙烧时各炉层固体物料的物质的量百分数(0。全国100所名校最新高考冲卷第5页(共8厕23·新高考)c©·化学(三】·门




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