2019-2020年呼和浩特一模:内蒙古呼和浩特市2019届高三第一次模拟考试文综历史试题-含答案
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2019届内蒙古呼伦贝尔市高考第一次模拟考试语文试题(附答案)第Ⅰ卷阅读题一、现代文阅读(36分)(一)论述类文本阅读(本题共3小题,9分)阅读下面的文字,完成1—3题。
《礼记》是中国古代重要的礼书,集中展现了礼仪生活的必要性、重要性以及操作性,它既阐述了礼乐活动对于社会政治生活的不可或缺,又通过具体仪节的记载为后人提供礼仪活动的参照范本。
《礼记》通过规范礼乐活动来强调人与人之间的等级差异以及由此带来的日常生活嘉益(收获)分配的差异-—贵贱有等、亲疏有别,由此可以明确与固化人与人之间的社会差异。
随着礼乐表征的差异而来的是权力以及生活嘉益分配的差异,由形式上的差异带来了实质上的差异。
这种实质上的差异意味着权力和社会资源的分配,从而使得礼乐制度具有了政治意义。
《礼记》以及其他礼书所强调的日常生活的形式差异,最终体现的是权力和社会资源分配的实质差异,这为古代中国政治生活提供了理论根据和范式参照,所以,《礼记》集中体现了儒家“生活政治(指政治权力和政治意志在日常生活中泛化,日常生活被提升到政治层面予以解读)”的政治范式。
在《礼记》中,“生活政治”的形而上学基础是自然天道。
自然世界的变化具有客观必然性,而礼乐文明是人的创造物,由人的意志决定。
儒家为了保证礼乐制度具有客观必然性,也为了礼乐制度具有合法性,在向天道自然的寻求中获得了答案。
《礼记》认为,礼乐制度是效仿自然天道而设计的,也顺应了自然世界的客观必然性,由此,礼乐制度既顺应了天道而具有合法性,同时又因为是天道的人间体现而具有了必然性。
自然天道为礼乐制度提供客观的依据,礼乐制度反映天道在人间的具体表现。
由此,儒家为礼乐及其相关的政治活动寻找到了自然天道的基石,礼乐及其所保证的等级秩序、利益分配以及活动规则也在一定意义上获得了合法性、必然性。
在《礼记》中,日常生活、政治生活从天地万物及其自然秩序上寻找到依据,进而得到合理解释;同时,人类生活秩序又因为源于至高无上的天地万物及其自然秩序而获得了合法性和权威性。
2019届呼和浩特市高三年级第一次质量普查调研考试语文试题参考答案及评分标准一、现代文阅读(36分)(一)论述类文本阅读(本题共3小题, 9分)1.A 2. B 3. D(二)实用类文本阅读(本题共3小题,12分)4.(3分) C (此项内容是材料二棕榈股份的做法,“引入体育、旅游、教育等产业”须因地制宜,根据当地具体情况而定。
)5.(3分) D (“大中小城市和小城镇协调发展的城镇格局”是黄汉权谈论关于如何推进新型城镇化高质量发展的做法之一,与“美丽中国的协调发展”不是同一概念。
)6.(6分)①注重生态文明建设创造优美洁净生活居住环境。
②提升城市功能带来先进便捷的生活条件,包括交通、体育、教育、旅游等设施。
③发展经济提供大量就业机会,保障可持续发展的经济效益。
(评分标准:本题要求从生态环境、城市功能、经济效益三个角度分类作答,每条2分;其它答案若言之成理,也可酌情给分。
)(三)文学类文本阅读(本题共3小题,15分)7.(3分) A (B项肖飞没出息是父亲个人的想法,不是客观原因,父亲激他出去打工,也并不是真的不想养他了;C项花馍滞销时,没有提到发不出工资,一些人离开时是拿了钱的,大娘不忍心看到肖飞尴尬,才劝一部分人留下来,未必是坚信他一定成功;D项优优第一次看到肖飞的花馍,只是好奇感兴趣,并不是一看到就产生拿到网上卖的想法。
)8.(6分)①兴趣爱好。
从小喜欢捏面团,还常常去学习观摩婶子大娘们做花馍,回来独自研究。
②执着精神。
父亲不支持他做花馍,逼他去打工,他没有放弃,工作之余依然坚持自己的爱好。
(在竞争压力大,花馍滞销时,没有气馁,没有放弃,依然坚持下去。
)③创新精神。
花馍滞销时,通过研究发现问题,开发新样式,加入新鲜蔬菜水果汁调色等,生意好转。
④亲友支持。
女友优优不仅支持还提出合理建议,是他创业的动力。
(大娘没有离开,还劝其他巧手留下,在他事业遇到低谷时对他给予最有力的支持。
)(评分标准:分条作答,意思对即可,每条2分,答对三条满分。
2019年内蒙古呼和浩特市高考数学一模试卷(理科)一、选择题(本大题共12小题,每小题5分,共60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.(5分)设全集为R,集合A={x|0<x<2},B={x|x2≥1},则A∩(∁R B)=()A.{x|0<x≤1}B.{x|0<x<1}C.{x|l≤x<2}D.{x|0<x<2} 2.(5分)若复数(2a+i)(1+i)(i为虚数单位)在复平面内所对应的点在虚轴上,则实数a为()A.﹣2B.2C.D.3.(5分)已知正方形ABCD的边长为2,以AB中点O为圆心,1为半径画圆,从正方形ABCD中任取一点P,则点P落在该圆中的概率为()A.B.C.D.4.(5分)函数f(x)=x cos x﹣x3的大致图象为()A.B.C.D.5.(5分)在等比数列{a n}中,a2﹣a1=2,且2a2为3a1和a3的等差中项,则a4为()A.9B.27C.54D.816.(5分)政府为了调查市民对A、B两服务部门的服务满意度情况,随机访问了50位市民,根据这50位市民对两部门的评分(评分越高表明市民的满意度越高)绘制的茎叶图如图:则下列说法正确的是()A.这50位市民对A、B两部门评分的方差,A部门的评分方差大B.估计市民对A、B两部门的评分高于90的概率相同C.这50位市民对A部门的评分其众数大于中位数D.该市的市民对B部门评分中位数的估计值是677.(5分)函数f(x)=A sin(ωx+φ)(其中A>0,ω>0,|φ|<)的图象如图所示,为了得到g(x)=sin(ωx+)的图象,只需将f(x)的图象上所有点()A.向右平移个单位长度B.向左平移个单位长度C.向右平移个单位长度D.向左平移个单位长度8.(5分)《九章算术》是我国古代的数学名著,体现了古代劳动人民的数学智慧,其中第六章“均输”中,有一竹节容量问题,某教师根据这一问题的思想设计了如图所示的程序框图,若输出m的值为67,则输入a的值为()A.7B.4C.5D.119.(5分)圆柱被一个平面截去一部分后与半径为1的半球组成一个几何体.该几何体三视图中的正视图和俯视图如图所示.若该几何体的表面积为()A.6π+4B.5π+2C.5π+4D.20π+1610.(5分)设有如下三个命题:甲:相交直线l、m都在平面α内,并且都不在平面β内;乙:直线l、m中至少有一条与平面β相交;丙:平面α与平面β相交.当甲成立时()A.乙是丙的充分而不必要条件B.乙是丙的必要而不充分条件C.乙是丙的充分且必要条件D.乙既不是丙的充分条件又不是丙的必要条件11.(5分)已知函数f(x)=2x﹣1+2x+3与g(x)=x﹣x﹣1的零点分别为x1,x2,h(x)=()x且h(x3)=,则x1,x2,x3的大小关系为()A.x1<x2<x3B.x1<x3<x2C.x2<x3<x1D.x3<x1<x2 12.(5分)已知双曲线=1(a>0,b>0)的上、下焦点分别为F2,F1,过F1且倾斜角为锐角的直线1与圆x2+y2=a2相切,与双曲线的上支交于点M.若线段MF1的垂直平分线过点F2,则该双曲线的渐近线的方程为()A.y=B.y=C.y=D.y=二、填空题(本大题共4小题,每小题5分,共20分.把正确答案填在答题卡的相应位置.)13.(5分)已知||=2,是单位向量,且与夹角为60°,则•(﹣)等于.14.(5分)在(2x﹣)5的展开式中,x2的系数为.15.(5分)设抛物线y2=4x的焦点为F,准线为L,P为抛物线上一点,P A⊥L,A为垂足.如果直线AF的斜率为﹣,那么以PF为直径的圆的标准方程为.16.(5分)已知等差数列{a n}的公差为2,前n项和为S n,且S1,S2,S4成等比数列.令b n=(﹣1)n﹣1,则数列{b n}的前100的项和为.三、解答题(本大题共5小题,共70分.解答应写出文字说明,证明过程或演算步骤.)17.(12分)如图,D是直角△ABC斜边BC上一点,AC=DC.(Ⅰ)若∠BAD=60°,求∠ADC的大小;(Ⅱ)若BD=2DC,且AB=,求AD的长.18.(12分)如图,平面四边形ABCD,AB⊥BD,AB=BC=CD=2,BD=2,将△ABD 沿BD翻折到与面BCD垂直的位置.(Ⅰ)证明:CD⊥面ABC;(Ⅱ)若E为AD中点,求二面角E﹣BC=A的大小.19.(12分)某超市计划按月订购一种饮料,每天进货量相同,进货成本每瓶3元,售价每瓶5元,每天未售出的饮料最后打4折当天全部处理完.根据往年销售经验,每天需求量与当天最高气温(单位:℃)有关.如果最高气温不低于25,需求量为500瓶;如果最高气温位于区间[20,25),需求量为300瓶;如果最高气温低于20,需求量为100瓶.为了确定六月份的订购计划,统计了前三年六月份各天的最高气温数据,得到下面的频数分布表:最高气温[10,15)[15,20)[20,25)[25,30)[30,35)[35,40)天数216362574以最高气温位于各区间的频率代替最高气温位于该区间的概率.(Ⅰ)求六月份这种饮料一天的需求量X(单位:瓶)的分布列,并求出期望EX;(Ⅱ)设六月份一天销售这种饮料的利润为Y(单位:元),且六月份这种饮料一天的进货量为n(单位:瓶),请判断Y的数学期望是否在n=EX时取得最大值?20.(12分)已知椭圆C:=1(a>b>0)过点P(2,1),其左右焦点分别为F1,F2,三角形PF1F2的面积为.(Ⅰ)求椭圆C的方程;(Ⅱ)已知A,B是椭圆C上的两个动点且不与坐标原点O共线,若∠APB的角平分线总垂直于x轴,求证:直线AB与两坐标轴围成的三角形一定是等腰三角形.21.(12分)已知函数f(x)=x2﹣2x+mlnx+2,m∈R.(Ⅰ)当m<1时,讨论函数f(x)的单调性;(Ⅱ)若函数f(x)有两个极值点x1,x2,且x1<x2,求证1﹣≤<1.请考生在第22、23题中任选一题作答,如果多做,则按所做的第一题记分.作答时,用2B 铅笔在答题卡上把所选题目对应的题号涂黑.[选修4-4:坐标系与参数方程]22.(10分)在直角坐标系xoy中,以坐标原点为极点,x轴正半轴为极轴,建立极坐标系,曲线C1的极坐标方程为ρ=4cosθ,曲线C2的极坐标方程为ρ=4sinθ,不与坐标轴重合的直线l的极坐标方程为θ=θ0(ρ∈R),设l与曲线C1,C2异于极点的交点分别为A,B.(Ⅰ)当θ0=时,求|AB|;(Ⅱ)求AB中点轨迹的直角坐标方程.[选修4-5:不等式选讲]23.已知函数f(x)=|2x+1|+|x﹣3|.(Ⅰ)在给出的直角坐标系中画出函数f(x)的图象;(Ⅱ)若关于x的不等式f(x)≥|x﹣m|的解集包含[4,5],求m的取值范围.2019年内蒙古呼和浩特市高考数学一模试卷(理科)参考答案与试题解析一、选择题(本大题共12小题,每小题5分,共60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.(5分)设全集为R,集合A={x|0<x<2},B={x|x2≥1},则A∩(∁R B)=()A.{x|0<x≤1}B.{x|0<x<1}C.{x|l≤x<2}D.{x|0<x<2}【考点】1H:交、并、补集的混合运算.【专题】11:计算题;37:集合思想;4O:定义法;5J:集合.【分析】根据补集、交集的定义即可求出.【解答】解:∵A={x|0<x<2},B={x|x2≥1}={x|x≥1或x≤﹣1},∴∁R B={x|﹣1<x<1},∴A∩(∁R B)={x|0<x<1}.故选:B.【点评】本题考查了集合的化简与运算问题,是基础题目.2.(5分)若复数(2a+i)(1+i)(i为虚数单位)在复平面内所对应的点在虚轴上,则实数a为()A.﹣2B.2C.D.【考点】A4:复数的代数表示法及其几何意义;A5:复数的运算.【专题】38:对应思想;4O:定义法;5N:数系的扩充和复数.【分析】利用复数代数形式的乘除运算化简,再由实部为0求得a值.【解答】解:∵(2a+i)(1+i)=(2a﹣1)+(2a+1)i在复平面内所对应的点在虚轴上,∴2a﹣1=0,即a=.故选:D.【点评】本题考查复数代数形式的乘除运算,考查复数的代数表示法及其几何意义,是基础题.3.(5分)已知正方形ABCD的边长为2,以AB中点O为圆心,1为半径画圆,从正方形ABCD中任取一点P,则点P落在该圆中的概率为()A.B.C.D.【考点】CF:几何概型.【专题】11:计算题;5I:概率与统计.【分析】由几何概型中的面积型及圆、正方形的面积公式得:P(A)===,得解.【解答】解:设“从正方形ABCD中任取一点P,则点P落在该圆中“为事件A,由几何概型中的面积型可得:P(A)===,故选:B.【点评】本题考查了几何概型中的面积型及圆、正方形的面积公式,属中档题.4.(5分)函数f(x)=x cos x﹣x3的大致图象为()A.B.C.D.【考点】3A:函数的图象与图象的变换.【专题】38:对应思想;4R:转化法;51:函数的性质及应用.【分析】判断函数的奇偶性和图象的对称性,利用特殊值进行排除即可.【解答】解:函数f(﹣x)=﹣x cos(﹣x)﹣(﹣x)3=﹣x cos x+x3=﹣f(x),则函数f(x)是奇函数,图象关于原点对称,排除C,D,f()=cos﹣()3=﹣()3<0,排除B,故选:A.【点评】本题主要考查函数图象的识别和判断,利用函数奇偶性和对称性的关系以及特殊值,结合排除法是解决本题的关键.5.(5分)在等比数列{a n}中,a2﹣a1=2,且2a2为3a1和a3的等差中项,则a4为()A.9B.27C.54D.81【考点】88:等比数列的通项公式.【专题】11:计算题;34:方程思想;35:转化思想;54:等差数列与等比数列.【分析】根据题意,设等比数列{a n}的公比为q,由2a2为3a1和a3的等差中项,可得2×2a2=3a1+a3,利用等比数列的通项公式代入化简为q2﹣4q+3=0,解得q,又a2﹣a1=2,即a1(q﹣1)=2,q≠1,分析可得a1、q的值,解可得数列{a n}的通项公式,将n =4代入计算可得答案.【解答】解:根据题意,设等比数列{a n}的公比为q,若2a2为3a1和a3的等差中项,则有2×2a2=3a1+a3,变形可得4a1q=3a1+a1q2,即q2﹣4q+3=0,解得q=1或3;又a2﹣a1=2,即a1(q﹣1)=2,则q=3,a1=1,则a n=3n﹣1,则有a4=33=27;故选:B.【点评】本题考查等比数列的性质以及通项公式,关键是掌握等比数列通项公式的形式,属于基础题.6.(5分)政府为了调查市民对A、B两服务部门的服务满意度情况,随机访问了50位市民,根据这50位市民对两部门的评分(评分越高表明市民的满意度越高)绘制的茎叶图如图:则下列说法正确的是()A.这50位市民对A、B两部门评分的方差,A部门的评分方差大B.估计市民对A、B两部门的评分高于90的概率相同C.这50位市民对A部门的评分其众数大于中位数D.该市的市民对B部门评分中位数的估计值是67【考点】BA:茎叶图.【专题】38:对应思想;4R:转化法;5I:概率与统计.【分析】根据茎叶图的知识以及样本来估计总体,进行合理的评价,恰当的描述即可.【解答】解:由茎叶图知,市民对甲部门的评分的中位数高于乙部门的评分的中位数,而且由茎叶图可以大致看出对甲部门的评分标准差要小于乙部门的标准差,说明该市市民对甲部门的评价较高、评价较为一致,对乙部门的评价较低、评价差异较大,由茎叶图知,50位市民对甲、乙部门的评分高于90的比率分别为=0.1,=0.16,故该市的市民对甲、乙两部门的评分高于90的概率得估计值分别为0.1,0.16,故A,B,C错误;由茎叶图知,50位市民对甲部门的评分有小到大顺序,排在排在第25,26位的是75,75,故样本的中位数是75,所以该市的市民对甲部门的评分的中位数的估计值是75.50位市民对乙部门的评分有小到大顺序,排在排在第25,26位的是66,68,故样本的中位数是=67,所以该市的市民对乙部门的评分的中位数的估计值是67,故D正确;故选:D.【点评】本题主要考查了茎叶图的知识,以及中位数,用样本来估计总体的统计知识,属于基础题.7.(5分)函数f(x)=A sin(ωx+φ)(其中A>0,ω>0,|φ|<)的图象如图所示,为了得到g(x)=sin(ωx+)的图象,只需将f(x)的图象上所有点()A.向右平移个单位长度B.向左平移个单位长度C.向右平移个单位长度D.向左平移个单位长度【考点】HJ:函数y=Asin(ωx+φ)的图象变换;HK:由y=Asin(ωx+φ)的部分图象确定其解析式.【专题】35:转化思想;49:综合法;57:三角函数的图象与性质.【分析】由函数的图象的顶点坐标求出A,由周期求出ω,由五点法作图求出φ的值,可得f(x)得解析式,再利用函数y=A sin(ωx+φ)的图象变换规律,得出结论.【解答】解:根据函数f(x)=A sin(ωx+φ)(其中A>0,ω>0,|φ|<)的图象,可得A=1,•=﹣,∴ω=2.再利用五点法作图可得2•+φ=π,求得φ=,∴f(x)=sin(2x+).为了得到g(x)=sin(ωx+)=sin(2x+)的图象,只需将f(x)的图象上所有点向右平移个单位长度,即可,故选:A.【点评】本题主要考查由函数y=A sin(ωx+φ)的部分图象求解析式,由函数的图象的顶点坐标求出A,由周期求出ω,由五点法作图求出φ的值,函数y=A sin(ωx+φ)的图象变换规律,属于基础题.8.(5分)《九章算术》是我国古代的数学名著,体现了古代劳动人民的数学智慧,其中第六章“均输”中,有一竹节容量问题,某教师根据这一问题的思想设计了如图所示的程序框图,若输出m的值为67,则输入a的值为()A.7B.4C.5D.11【考点】EF:程序框图.【专题】34:方程思想;4B:试验法;5K:算法和程序框图.【分析】模拟程序框图的运行过程,即可得出程序运行后输出m值时对应a的值.【解答】解:由程序框图可得:m=2a﹣3,当i的值为1时,m=2(2a﹣3)﹣3=4a﹣9,当i的值为2时,m=2(4a﹣9)﹣3=8a﹣21,当i的值为3时,m=2(8a﹣21)﹣3=16a﹣45,当i的值为4时,m=2(16a﹣45)﹣3=32a﹣93,此时不满足循环条件,输出m=32a﹣93=67,解得:a=5.故选:C.【点评】本题考查了模拟实验法解程序框图的应用问题,是基础题.9.(5分)圆柱被一个平面截去一部分后与半径为1的半球组成一个几何体.该几何体三视图中的正视图和俯视图如图所示.若该几何体的表面积为()A.6π+4B.5π+2C.5π+4D.20π+16【考点】L!:由三视图求面积、体积.【专题】11:计算题;31:数形结合;35:转化思想;49:综合法;5F:空间位置关系与距离.【分析】该几何体是由半个圆柱对接半个球而形成的,利用三视图的数据求解几何体的表面积,然后推出结果.【解答】解:该几何体是由半个圆柱对接半个球而形成的,视图表示的是几何体水平放置时的情形,其表面积S=2π×12+π×12+π×2+2×2=4+5π.故选:C.【点评】本题考查三视图求解几何体的表面积,考查空间想象能力以及计算能力.10.(5分)设有如下三个命题:甲:相交直线l、m都在平面α内,并且都不在平面β内;乙:直线l、m中至少有一条与平面β相交;丙:平面α与平面β相交.当甲成立时()A.乙是丙的充分而不必要条件B.乙是丙的必要而不充分条件C.乙是丙的充分且必要条件D.乙既不是丙的充分条件又不是丙的必要条件【考点】29:充分条件、必要条件、充要条件;LP:空间中直线与平面之间的位置关系.【专题】14:证明题;16:压轴题.【分析】判断乙是丙的什么条件,即看乙⇒丙、丙⇒乙是否成立.当乙成立时,直线l、m中至少有一条与平面β相交,则平面α与平面β至少有一个公共点,故相交相交.反之丙成立时,若l、m中至少有一条与平面β相交,则l∥m,由已知矛盾,故乙成立.【解答】解:当甲成立,即“相交直线l、m都在平面α内,并且都不在平面β内”时,若“l、m中至少有一条与平面β相交”,则“平面α与平面β相交”成立;若“平面α与平面β相交”,则“l、m中至少有一条与平面β相交”也成立故选:C.【点评】本题考查空间两条直线、两个平面的位置关系判断、充要条件的判断,考查逻辑推理能力.11.(5分)已知函数f(x)=2x﹣1+2x+3与g(x)=x﹣x﹣1的零点分别为x1,x2,h(x)=()x且h(x3)=,则x1,x2,x3的大小关系为()A.x1<x2<x3B.x1<x3<x2C.x2<x3<x1D.x3<x1<x2【考点】52:函数零点的判定定理.【专题】31:数形结合;35:转化思想;4R:转化法;51:函数的性质及应用.【分析】利用函数与方程的关系,分别转化为y=2x与y=﹣4x﹣6的图象,y=x﹣1和y =x的图象,h(x)=()x和y=的图象,利用数形结合研究x1,x2,x3的范围即可得到结论.【解答】解:由f(x)=2x﹣1+2x+3=0得2x﹣1=﹣2x﹣3,即2x=﹣4x﹣6,作出函数y=2x与y=﹣4x﹣6的图象如图,(黑色图象),由图象知两个图象交点的横坐标x1满足﹣2<x1<﹣1,由g(x)=x﹣x﹣1=0得x﹣1=x,作出y=x﹣1和y=x的图象如图(红色图象)由图象知两个图象交点的横坐标x2满足2<x2<3,作出h(x)=()x和y=,的图象如图(蓝色图象)由图象知两个图象交点的横坐标x3满足1<x2<2,综上x1,x2,x3的大小关系为x1<x3<x2,故选:B.【点评】本题主要考查函数与方程的应用,根据条件转化为两个函数图象交点问题,利用数形结合求出对应究x1,x2,x3的范围是解决本题的关键.12.(5分)已知双曲线=1(a>0,b>0)的上、下焦点分别为F2,F1,过F1且倾斜角为锐角的直线1与圆x2+y2=a2相切,与双曲线的上支交于点M.若线段MF1的垂直平分线过点F2,则该双曲线的渐近线的方程为()A.y=B.y=C.y=D.y=【考点】KC:双曲线的性质.【专题】34:方程思想;48:分析法;5D:圆锥曲线的定义、性质与方程.【分析】先设MF1与圆相切于点E,利用|MF2|=|F1F2|,及直线MF1与圆x2+y2=a2相切,可得几何量之间的关系,从而可求双曲线的渐近线方程.【解答】解:设MF1与圆相切于点E,因为|MF2|=|F1F2|=2c,所以△MF1F2为等腰三角形,N为MF1的中点,所以|F1E|=|MF1|,又因为在直角△F1EO中,|F1E|2=|F1O|2﹣a2=c2﹣a2,所以|F1E|=b=|MF1|①又|MF1|=|MF2|+2a=2c+2a②,c2=a2+b2③由①②③可得c2﹣a2=()2,即为4(c﹣a)=c+a,即3c=5a,b===a,则双曲线的渐近线方程为y=±x,即为y=±x.故选:B.【点评】本题考查直线与圆相切,考查双曲线的定义,考查双曲线的几何性质,注意运用平面几何的性质,考查运算能力,属于中档题.二、填空题(本大题共4小题,每小题5分,共20分.把正确答案填在答题卡的相应位置.)13.(5分)已知||=2,是单位向量,且与夹角为60°,则•(﹣)等于3.【考点】9O:平面向量数量积的性质及其运算.【专题】38:对应思想;4O:定义法;5A:平面向量及应用.【分析】依题意,利用平面向量的数量积即可求得•(﹣)的值.【解答】解:∵||=2,是单位向量,且与夹角为60°,∴•(﹣)=﹣•=4﹣2×1×=3,故答案为:3.【点评】本题考查平面向量数量积的运算,掌握平面向量的数量积的运算性质及定义是解决问题的关键,属于中档题.14.(5分)在(2x﹣)5的展开式中,x2的系数为80.【考点】DA:二项式定理.【专题】34:方程思想;4R:转化法;5P:二项式定理.【分析】利用通项公式即可得出.【解答】解:(2x﹣)5的展开式中,通项公式T r+1=(2x)5﹣r=(﹣1)r25﹣r,令5﹣r=2,解得r=2.∴x2的系数=23=80.故答案为:80.【点评】本题考查了二项式定理的通项公式,考查了推理能力与计算能力,属于基础题.15.(5分)设抛物线y2=4x的焦点为F,准线为L,P为抛物线上一点,P A⊥L,A为垂足.如果直线AF的斜率为﹣,那么以PF为直径的圆的标准方程为(x﹣2)2+(y﹣)2=4.【考点】J1:圆的标准方程;K8:抛物线的性质.【专题】35:转化思想;49:综合法;5D:圆锥曲线的定义、性质与方程.【分析】利用抛物线的定义,|PF|=|P A|,设F在l上的射影为F′,依题意,可求得|FF′|,|AF′|,从而可求得点P的纵坐标,代入抛物线方程可求得点P的横坐标,从而可求得|P A|.【解答】解:∵抛物线y2=4x的焦点为F,准线为l,P为抛物线上一点,∴|PF|=|P A|,F(1,0),准线l的方程为:x=﹣1;设F在l上的射影为F′,又P A⊥l,依题意,∠AFF′=60°,|FF′|=2,∴|AF′|=2,P A∥x轴,∴点P的纵坐标为2,设点P的横坐标为x0,(2)2=4x0,∴x0=3,∴|PF|=|P A|=x0﹣(﹣1)=3﹣(﹣1)=4.故以PF为直径的圆的圆心为(2,),半径为2.以PF为直径的圆的标准方程为(x﹣2)2+(y﹣)2=4故答案为:(x﹣2)2+(y﹣)2=4.【点评】本题考查抛物线的简单性质,考查转化思想,考查解三角形的能力,属于中档题.16.(5分)已知等差数列{a n}的公差为2,前n项和为S n,且S1,S2,S4成等比数列.令b n=(﹣1)n﹣1,则数列{b n}的前100的项和为.【考点】8E:数列的求和.【专题】35:转化思想;54:等差数列与等比数列.【分析】首项利用已知条件求出数列的通项公式,进一步利用裂项相消法求出数列的和.【解答】解:设等差数列{a n}的首项为a1,公差为2,前n项和为S n,且S1,S2,S4成等比数列.则:,解得:a1=1,所以:a n=1+2(n﹣1)=2n﹣1,所以:b n=(﹣1)n﹣1=,所以:,==,故答案为:【点评】本题考查的知识要点:数列的通项公式的求法及应用,裂项相消法在数列求和中的应用,主要考查学生的运算能力和转化能力,属于基础题型.三、解答题(本大题共5小题,共70分.解答应写出文字说明,证明过程或演算步骤.)17.(12分)如图,D是直角△ABC斜边BC上一点,AC=DC.(Ⅰ)若∠BAD=60°,求∠ADC的大小;(Ⅱ)若BD=2DC,且AB=,求AD的长.【考点】HP:正弦定理.【专题】11:计算题;35:转化思想;44:数形结合法;58:解三角形.【分析】(Ⅰ)由已知可求∠DAC=30°,在△ADC中,由正弦定理可得sin∠ADC=,即可解得∠ADC=120°.(Ⅱ)由已知在△ABC中,由勾股定理可得DC=1,BD=2,AC=,令∠ADB=θ,由余弦定理,即可解得AD的值.【解答】(本题满分为12分)解:(Ⅰ)∵∠BAD=60°,∠BAC=90°,∴∠DAC=30°,…1分在△ADC中,由正弦定理可得:,…2分∴sin∠ADC=sin∠DAC=,…3分∴∠ADC=120°,或60°,…4分又∠BAD=60°,∴∠ADC=120°…6分(Ⅱ)∵BD=2DC,∴BC=3DC,在△ABC中,由勾股定理可得:BC2=AB2+AC2,可得:9DC2=6+3DC2,∴DC=1,BD=2,AC=,…8分令∠ADB=θ,由余弦定理:在△ADB中,AB2=AD2+BD2﹣2AD•BD•cosθ,…9分在△ADC中,AC2=AD2+CD2﹣2AD•CD•cos(π﹣θ),…10分可得:,∴解得:AD2=2,可得:AD=…12分【点评】本题主要考查了正弦定理,余弦定理,勾股定理在解三角形中的应用,考查了计算能力和转化思想,属于中档题.18.(12分)如图,平面四边形ABCD,AB⊥BD,AB=BC=CD=2,BD=2,将△ABD 沿BD翻折到与面BCD垂直的位置.(Ⅰ)证明:CD⊥面ABC;(Ⅱ)若E为AD中点,求二面角E﹣BC=A的大小.【考点】LW:直线与平面垂直;MJ:二面角的平面角及求法.【专题】14:证明题;31:数形结合;41:向量法;5F:空间位置关系与距离;5G:空间角.【分析】(1)推导出AB⊥面BCD,从而AB⊥CD,再求出AB⊥BC,AB⊥BD,AC⊥CD,由此能证明CD⊥平面ABC.(2)以B为原点,在平面BCD中,过B作BD的垂线为x轴,以BD为y轴,以BA为z轴,建立空间直角坐标系,利用向量法能求出二面角E﹣BC=A的大小.【解答】证明:(1)∵平面四边形ABCD,AB⊥BD,AB=BC=CD=2,BD=2,面ABD⊥面BCD,AB⊥BD,面ABD∩平面BCD=BD,∴AB⊥面BCD,∴AB⊥CD,又AC2=AB2+BC2=8,AD2=AB2+BD2=12,AD2=AC2+CD2=12,∴AB⊥BC,AB⊥BD,AC⊥CD,∵AC∩AB=A,∴CD⊥平面ABC.解:(2)AB⊥面BCD,如图以B为原点,在平面BCD中,过B作BD的垂线为x轴,以BD为y轴,以BA为z轴,建立空间直角坐标系,则B(0,0,0),A(0,0,2),C(,0),D(0,2,0),∵E是AD的中点,∴E(0,,1),∴=(,0),=(0,,1),令平面BCE的一个法向量为=(x,y,z),则,取x=1,得=(1,﹣1,),∵CD⊥面ABC,∴平面ABC的一个法向量为=(﹣,0),∴cos<,>==,∴二面角E﹣BC=A的大小为45°.【点评】本题考查线面垂直的证明,考查二面角的求法,考查空间中线线、线面、面面间的位置关系等基础知识,考查空间想象能力、运算求解能力,考查化归与转化思想、数形结合思想,是中档题.19.(12分)某超市计划按月订购一种饮料,每天进货量相同,进货成本每瓶3元,售价每瓶5元,每天未售出的饮料最后打4折当天全部处理完.根据往年销售经验,每天需求量与当天最高气温(单位:℃)有关.如果最高气温不低于25,需求量为500瓶;如果最高气温位于区间[20,25),需求量为300瓶;如果最高气温低于20,需求量为100瓶.为了确定六月份的订购计划,统计了前三年六月份各天的最高气温数据,得到下面的频数分布表:最高气温[10,15)[15,20)[20,25)[25,30)[30,35)[35,40)天数216362574以最高气温位于各区间的频率代替最高气温位于该区间的概率.(Ⅰ)求六月份这种饮料一天的需求量X(单位:瓶)的分布列,并求出期望EX;(Ⅱ)设六月份一天销售这种饮料的利润为Y(单位:元),且六月份这种饮料一天的进货量为n(单位:瓶),请判断Y的数学期望是否在n=EX时取得最大值?【考点】CG:离散型随机变量及其分布列;CH:离散型随机变量的期望与方差.【专题】11:计算题;32:分类讨论;49:综合法;5I:概率与统计.【分析】(Ⅰ)由题意知X的可能取值为100,300,500,分别求出相应的概率,由此能求出X的分布列和E(X).(Ⅱ)六月份这种饮料的进货量n满足100≤n≤500,当300≤n≤500时,若最高气温不低于25,则Y=5n﹣3n=2n,若最高气温位于[20,25),则Y=5×300+2(n﹣300)﹣3n=900﹣n,若最高气温低于20,则Y=5×100+2(n﹣100)﹣3n=300﹣n,求出E(Y)=420+0.2n,当n=500时,Y的数学期望达到最大值,最大值为520元;当100≤n≤300时,若最高气温不低于25,则Y=5n﹣3n=2n,若最高气温位于[20,25),则Y=5n﹣3n =2n,若最高气温低于20,则Y=5×100﹣(n﹣100)﹣300=300﹣n,E(Y)=60+1.4n,n=300时,Y的数学期望达到最大值,最大值为480元.由此能求出n=500时,y的数学期望达到最大值,最大值为520元.【解答】解:(Ⅰ)由题意知X的可能取值为100,300,500,P(X=100)==0.2,P(X=300)=,P(X=500)=,∴X的分布列为:X100300500P0.20.40.4E(X)=100×0.2+300×0.4+500×0.4=340.(Ⅱ)由题意知六月份这种饮料的进货量n满足100≤n≤500,当300≤n≤500时,若最高气温不低于25,则Y=5n﹣3n=2n,若最高气温位于[20,25),则Y=5×300+2(n﹣300)﹣3n=900﹣n,若最高气温低于20,则Y=5×100+2(n﹣100)﹣3n=300﹣n,∴E(Y)=2n×0.4+(900﹣n)×0.4+(300﹣n)×0.2=420+0.2n,此时,n=500时,Y的数学期望达到最大值,最大值为520元,当100≤n≤300时,若最高气温不低于25,则Y=5n﹣3n=2n,若最高气温位于[20,25),则Y=5n﹣3n=2n,若最高气温低于20,则Y=5×100﹣(n﹣100)﹣300=300﹣n,∴E(Y)=2n×(0.4+0.4)+(300﹣n)×0.2=60+1.4n,此时,n=300时,Y的数学期望达到最大值,最大值为480元,∴n=340时,Y的数学期望值为:420+0.2×340=488不是最大值,n=500时,y的数学期望达到最大值,最大值为520元.【点评】本题考查离散型随机变量的分布列、数学期望的求法,考查互斥事件概率加法公式等基础知识,考查运算求解能力,是中档题.20.(12分)已知椭圆C:=1(a>b>0)过点P(2,1),其左右焦点分别为F1,F2,三角形PF1F2的面积为.(Ⅰ)求椭圆C的方程;(Ⅱ)已知A,B是椭圆C上的两个动点且不与坐标原点O共线,若∠APB的角平分线总垂直于x轴,求证:直线AB与两坐标轴围成的三角形一定是等腰三角形.【考点】KL:直线与椭圆的综合.【专题】15:综合题;38:对应思想;4R:转化法;5E:圆锥曲线中的最值与范围问题.【分析】(Ⅰ)由题意可得,解得a2=6,b2=3,则椭圆方程可求;(Ⅱ)设直线P A的方程为y+1=k(x﹣2),联立直线方程和椭圆方程,求得A的横坐标,同理求得B的横坐标,进一步求得A、B的纵坐标的差,代入斜率公式得答案.【解答】解:(Ⅰ)由题意可得,解得a2=6,b2=3,故椭圆C的方程为+=1,证明(Ⅱ):设直线AP的斜率为k,则直线BP的斜率为﹣k,设A(x1,y1),B(x2,y2),直线P A的方程为y+1=k(x﹣2),即y=kx+1﹣2k联立,得(1+2k2)x2+4(k﹣2k2)x+8k2﹣8k﹣4=0.∴2x1=,即x1=设直线PB的方程为y+1=﹣k(x﹣2),同理求得x2=∴x2﹣x1=﹣∴y1﹣y2=k(x1+x2)+2﹣4k=,∴直线AB的斜率k AB==1,易知l与在两坐标轴的截距绝对值相等且都不为0,∴直线AB与两坐标轴围成的三角形一定是等腰三角形【点评】本题考查椭圆标准方程的求法,考查了直线与椭圆位置关系的应用,考查计算能力,属中档题.21.(12分)已知函数f(x)=x2﹣2x+mlnx+2,m∈R.(Ⅰ)当m<1时,讨论函数f(x)的单调性;(Ⅱ)若函数f(x)有两个极值点x1,x2,且x1<x2,求证1﹣≤<1.【考点】6B:利用导数研究函数的单调性;6D:利用导数研究函数的极值.【专题】11:计算题;32:分类讨论;4G:演绎法;53:导数的综合应用.【分析】(1)首先求得导函数,然后分类讨论确定函数的单调性即可;(2)首先确定x1,x2的范围,然后结合题意证明题中的不等式即可.【解答】解:(1)∵,∴,令g(x)=x2﹣2x+m,∵m<1,∴△=4﹣4m>0,令f’(x)=0则,当,即m≤0时,令f’(x)<0则;令f’(x)>0则.此时函数在上单调递减;在上单调递增.当,即0<m<1时,令f’(x)<0,则;令f’(x)>0则,此时函数在上单调递减;在和上单调递增.(2)由(1)知,若f(x)有两个极值点,则0<m<1且,又x1,x2是x2﹣2x+m=0的两个根,则,∴,令,则,令h’(t)<0,则,令h’(t)>0,则,所以h(t)在上单调递减;在上单调递增.∴,∵,∴h(t)<1,得证.【点评】本题主要考查导函数研究函数的单调性,导函数研究函数的极值,利用导数证明不等式的方法等知识,属于中等题.请考生在第22、23题中任选一题作答,如果多做,则按所做的第一题记分.作答时,用2B铅笔在答题卡上把所选题目对应的题号涂黑.[选修4-4:坐标系与参数方程]22.(10分)在直角坐标系xoy中,以坐标原点为极点,x轴正半轴为极轴,建立极坐标系,曲线C1的极坐标方程为ρ=4cosθ,曲线C2的极坐标方程为ρ=4sinθ,不与坐标轴重合的直线l的极坐标方程为θ=θ0(ρ∈R),设l与曲线C1,C2异于极点的交点分别为A,B.(Ⅰ)当θ0=时,求|AB|;(Ⅱ)求AB中点轨迹的直角坐标方程.【考点】Q4:简单曲线的极坐标方程.【专题】11:计算题;5S:坐标系和参数方程.【分析】(Ⅰ)用直线l的极坐标方程分别代入C1,C2的极坐标方程,再根据极径的几何意义可得;(Ⅱ)先求出AB的中点的轨迹的极坐标方程,再化成直角坐标方程.【解答】解:(Ⅰ)当θ0=时,联立得A(﹣2,);同理得B(2,),由极径的几何意义有|AB|=2﹣(﹣2)=2+2.(Ⅱ)由已知令P(ρ,θ),A(ρ1,θ),B(ρ2,θ),∵ρ1=4cosθ,ρ2=4sinθ,P为AB的中点,∴ρ==2cosθ+2sinθ,即ρ2=2ρcosθ+2sinθ,所以P点的轨迹的直角坐标方程为x2+y2﹣2x﹣2y=0,因为直线l不与坐标轴重合,所以需去掉(1,0),(0,).【点评】本题考查了简单曲线的极坐标方程,属中档题.[选修4-5:不等式选讲]23.已知函数f(x)=|2x+1|+|x﹣3|.(Ⅰ)在给出的直角坐标系中画出函数f(x)的图象;(Ⅱ)若关于x的不等式f(x)≥|x﹣m|的解集包含[4,5],求m的取值范围.。
2019-2020学年呼和浩特市第一中学高三英语模拟试卷及答案解析第一部分阅读(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项AWhat to See InHarbinParks inHarbin: Snow Sculpture Expo on theSunIslandPark: massive and beautifully carved sculptures of snow. Ice Lantern Festival: where large ice buildings and statues constructed with lights inside that make them glow.SiberianTigerPark: The park has several large caged areas where the tigers roam freely and live as they-would in their natural environment. We enter these caged areas in a specially designed van with large windows to get a look at these beautiful beasts. Live pheasants (雉) are let loose (if you pay) in order to show you the tigers' natural hunting skills.Russian Architecture: Blessed with grace and character, the city is famous for its unique, Russian-influenced architecture. Remnants (残存) from the days when Harbin wasan important stop on the Russian Manchurian Railroad, the dome-shaped structures remind people of pre-revolutionary Russia. The strong Russian flavor continues to impact the city today due to new trade and tourism betweenHarbinandRussia.TheCentral Avenue: Passers-by only street, a perfect remaining part of the busy international business activities at the turn of the 20th century. The 1.4-km long street is a worthy museum of European architectural styles, including Baroque and Byzantine facades, Jewish architectural wonders, little Russian bakeries, French fashion houses, American snack food outlets, and Japanese restaurants.Guogeli Avenue:Harbin's second biggest shopping district dotted with Russian buildings. A tram track is still preserved in the centre of the road. The street is named after Nikolay (Vasilyevich) Gogol (1809-1852); great Russian novelist, dramatist, satirist, founder of the so-called critical realism in Russian literature, best-known for his novel MERTVYE DUSHI I-II (1842, Dead Souls).Saint Sophia Church (built in 1903): The Orthodox church is a wonderful example of Russian Architecture. We only tour the outside of the church. The inside has been turned into some painters' market and is a big disappointment to all who visit it. You are welcome to venture into the church. Entrance fees are RMB20 per person.1. From where does the author look at the tigers?A. Through the windows of his house.B. In the closed areas of tigers.C. In the areas for walking.D. In their natural environment.2. Where can visitors see the most diverse styles of architecture?A. At Ice Lantern Festival.B. On the Russian Manchurian Railroad.C. On TheCentral Avenue.D. OnGuogeli Avenue.3. When walking in the city ofHarbin, what can visitors still strongly feel?A. The Russian flavor.B. The influence of Guogeli's realism.C. The damage to Saint Sophia Church.D. The mixture of American and Japanese cultures.BCraig Blackburn, a father and car fan, built a Batmobile for his son’s hope for using the vehicle to brighten the lives of sick children. And now he hopes to use it for more than just his sons hope after seeing the childrens reaction to the Batmobile.Based on the number of failures he had seen in car groups, he estimated that only about one in 50 attempted constructions was actually finished and he realized what an incredible opportunity he had.Mr. Blackburn started the project at the beginning of 2018 after hearing a friend in the US was doing the same thing. It started with importing an outer shell overseas, before picking brains of a friend who had a background as a worker in a car factory to gain knowledge of how to build the car. With the help of his friend, Mr. Blackburn built the Batmobile in 18 months with the cost reaching six figures.Mr.Blackburn hoped to add a flamethrower(喷火器)onto the back of the vehicle and said he had thought about building the more recent Batman Tumbler from the series film Dark Knight. Though Mr. Blackburn encountered plenty of difficulties to get over during the construction, in September 2019, the carmade its first show at the Carnival of Flowers in Toowoomba, before being used by Blackburn’s son for his hope.“It was great. It was so good to see the kids’ and adults’ excitement at seeing the Batmobile.” Mr. Blackburn said. As a result, the car lovers hope to make the car work on the roads as soon as possible, so he can visit sick children and take them out with his son.4. What is Craig Blackburn’s initial purpose of making the Batmobile?A. To realize his son’s dream.B. To donate it to sick children.C. To pay his respects to the film Dark Knight.D. To show off at the Carnival of Flowers in Toowoomba.5. How did Blackburn feel about the car-making at first?A. Hopeful.B. Confused.C. Impossible.D. Unsure.6. How did Blackburn’s friend help him?A. By making an outer shell for him.B. By offering him financial support.C. By sharing the knowledge of building cars.D. By telling him the background of the car factory.7. What is the car lovers’ expectation of the Batmobile?A. It will be driven soon on the roads.B. It can be displayed around the world.C. It can change the lives of sick children.D. It will appear in the next film about Batman.CAccording to statistics published by the BPI (Buying Power Index) a couple of months ago, digital streaming (流媒体) now accounts for 80 percent of the music consumption in the UK. Despite the incredible growth of online streaming platforms like iTunes, Apple Music and Tidal over the past 15 years, a more traditional medium has also seen a return of interest and sales in the music industry. In 2020, almost one in five of all albums purchased in the UK is vinyl (黑胶唱片), and it has once again become the most popular physical musical medium.With digital streaming so easy and convenient, why are so many peopledrawn to traditional records? Some experts claim that vinyl is a physical medium for experiencing music, something tangible (有形的) to hold and own. For most people, having something tangible and interacting with it gives depth to the experience of music. Listening to an album and touching it the way the artist intended can make them feel more connected to the music and the artist. Records are physical products that can be not only displayed but also gifted, shared, traded and passed down through generations.Sound quality is another hot topic. A lot of music lovers feel that the analogue sound (模拟声音) vinyl offers is superior to modern digital audio, particularly with regards to the compressed formats streaming platforms use. There’s a common belief that old-school analogue audio has a warmer, fuller sound than digitised music. For vinyl followers, the very defect traditional recorders often have, such as the familiar crackle (劈啪作响) when the record starts, bring the music to life in a different way.There’s aritualisticaspect to vinyl that a lot of people are drawn to, too. The act of putting a record on—carefully removing the record from the sleeve, placing it on the record player and gently dropping the needleon the right groove (凹槽)—is a more assiduous (一丝不苟的), mindful way of engaging with music. When you’re listening to vinyl, you can’t tap abutton and go about your day while the streaming service provides hours of music. You need to stay close to the record player to move the needle and flip the record over.It’s clear that the vinyl interest is well underway, and vinyl records are truly making a comeback. In an increasingly digital society, there’s something to be said for analogue experiences. Perhaps one of the great things about being alive in the 21st century is our ability to have the best of both worlds—the timeless appeal of physical records alongside the easy access to vast music libraries that streaming offers.8. What are the statistics published by the BPI used to show?A. An increase in music consumption.B. The recovery of music industry.C. A comeback of a physical medium.D. The acceptance of online streaming.9. According to some experts, why does vinyl interest many people?A. It attracts people by its realistic feel.B. It offers simple access to different music.C. It shares a new way to enjoy music.D. It provides people with perfect sound effect.10. The underlined word “ritualistic” in Para.4 means something ______.A. Overlooked by society.B. Updated very frequently.C. Performed as part of a ceremony.D. Kept for a long time without changing.11. How does the writer feel about the future development of music medium?A. Traditional records will get underway.B. The analogue experiences may matter more.C. Vinyl sales will boom with technological advance.D. There should be a good mix of old and new.DThe founder of Earth Day was Gaylord Nelson, a U.S. Senator fromWisconsin. During the late 1960s, Americans witnessed the uninvited side effects of high productivity. Factories and power plants were sending outsmoke and industrial waste while Americans were using petrol for their massive(大量的) cars, making air pollution almostsynonymous withthe nation’s development.What moved Senator Nelson to action was the 1969 massive oil spill inCalifornia, the largest in theUnited Statesat that time. The spill proved to be an environmental nightmare as it had a significant effect on marine life, killing about 3,500 sea birds, as well as marine animals such as dolphins, elephant seals and sea lions, fueling public anger. Inspired by the student antiwar movement at that period of time, Nelson found it an appropriate time to direct the energy of the students towards a fight for environmental protection. He decided that it was time to educate the Americans on the need to protect the environment. Thus Earth Day was born in 1970, and public environmentalawareness took centre stage.On 22ndApril 1970, millions of Americans took to the street and thousands of students marched to appeal for a healthy, sustainable environment. There was now a new synergy(协同作用) among different groups which had previously been fighting their causes related to the environment. Their fight for environmental conservation became so overwhelming that affected businesses were forced to follow environmental standards if they wanted to continue their operations.As it became more apparent that environmental issues were not just localized ones but a global concern, the year 1990 saw Earth Day reach out to many more around the world. Earth Day 1990 helped pave the way for the 1992 United Nations Earth Summit inRio de Janeiro, bringing together many nations for a united effort towards protecting the environment.12. Which of the following can replace the underlined phrase “synonymous with” in paragraph 1?A. familiar withB. opposite toC. different fromD. equal to13. Why did Nelson found Earth Day?A. To support students’ antiwar movement.B. To draw people’s attention to the seriousness of the oil spill.C. To arouse American’s awareness of environmental conservation.D. To educate Americans to protect marine life threatened by oil spill events.14. What can be inferred from the passage?A. Businesses would like to follow environmental standards.B. Earth Day united people to fight for environmental protection.C. It was the side effects of high productivity that led Nelson to take action.D. The 1992 United Nations Earth Summit made Earth Day known to more countries.15. The passage mainly talks about_______.A. how Earth Day came into beingB. why Earth Day was so significantC. who the founder of Earth Day wasD. what Earth Day meantto the world第二节(共5小题;每小题2分,满分10分)阅读下面短文,从短文后的选项中选出可以填入空白处的最佳选项。
2019-2020学年呼和浩特第二中学高三语文一模试卷及答案一、现代文阅读(36分)(一)现代文阅读I(9分)阅读下面的文字,完成下题。
①碧蓝的天空,铺过来一层蚕丝般的云幕,不一会儿,太阳周围现出一道彩色光环。
它宛若彩虹,但没有彩虹鲜亮;虹的色彩排列是内紫外红,而光环刚好相反,是外紫内红。
这就是“晕”,俗称“风圈”。
②我们的祖先,很早就对“晕”进行了观察和记载。
远在殷墟甲骨文中,已有“晕”字出现。
到了西周,“晕”便正式作为天象被记录下来。
而欧洲人直到1630年,才有关于“晕”的详细记载,比我国晚了一千多年。
③人们虽然很早就注意到了这种美丽的光象,但对它的成因作出科学的解释,则是近一二百年的事。
1666年,牛顿做了一个很简单的但对后来科学发展影响很大的实验。
他让一束阳光透过三棱镜,结果出现,红、橙、黄、绿、蓝、靛、紫的七色彩条。
这使人类第一次认识到,阳光原来是由七种不同颜色的光组成的,当它们通过三棱镜时,由于波长、折射角不同,才显示了各自的本色。
这一发现,给“晕”的科学解释打下了基础。
④探空资料表明,那白如蚕丝的云幕,其高度都在距地面5000米以上,是由六方柱体状的小冰晶组成的。
如果把六方柱体不相邻的边延长,实际上就是三棱柱体。
所以,六方柱体状的冰晶就像三棱镜一样,能把阳光分成七色彩条。
当无数兆亿小冰晶被阳光照射后,各色光按一定角度折射出来,便形成了绚丽多彩的晕环。
⑤人们对“晕”的兴趣,不单因为它有斑斓的色彩,而且由于它是天气变化的一种前兆。
据我国新疆阿勒泰地区统计,在1980天中就曾出现过1052次“晕”,“晕”后两天内出现风、雨等显著天气变化的占80%。
⑥不过,也不是所有的“晕”都是风雨之兆。
气象工作者经过长期观察发现:当“晕”的持续时间在1小时以内(俗称“短晕”)时,未来的12小时—36小时内会出现风或雨;当“晕”的持续时间在5小时以上(俗称“长晕”)时,则不会有风雨天气出现。
⑦美丽的晕环是大自然的天气预告图,我们了解并利用它来观测风云,可以更好地安排工作和生活。
2019-2020学年呼和浩特市土默特中学高三英语一模试卷及答案第一部分阅读(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项ANo one knows when the first printing press was invented or who invented it. but the oldest known printed text originated in China during the first millennium (千年) AD.The Diamond Sutra (《金刚经》), a Buddhist book from Dunhuang, China during the Tang Dynasty, is said to be the oldest known printed book.The Diamond Sutrawas created with a method known as block printing (雕版印刷), which used boards of hand-carved wood blocks in reverse.It was said that the moveable type was developed by Bi Sheng. He was fromYingshan,Hubei,China, living from 970 to 1051 AD. His method replaced panels of printing blocks with moveable individual Chinese characters that could be reused. The first moveable Chinese Characters were carved into clay and baked into hard blocks that were then arranged onto an iron frame that was pressed against an iron plate.The earliest mention of Bi Sheng’s printing press is in the bookDream Pool Essays, written in 1086 by Shen Kuo, who noted that his nephews came into possession of Bi Sheng’s typefaces (字体) after his death. Shen Kuo explained that Bi Sheng did not use wood because the texture is inconsistent (不一致的) and absorbs wetness too easily.By the time of the Southern Song Dynasty, which ruled from 1127 to 1279 AD, books had become popular in society and helped create a scholarly class of citizens who had the capabilities to become civil servants. Large printed book collections also became a status symbol for the wealthy class.1. When was Bi Sheng’s printing press first introduced in history?A. After Bi Sheng died and his nephews owned his typefaces.B. When books became popular in the Southern Song Dynasty.C. After the block printing was replaced by the moveable type printing.D. WhenThe Diamond Sutrawas printed into a book.2. What can we infer from the passage?A. Shen Kuo made great contributions to printing.B. The moveable type printing was invented earlier than block printing.C. Printed books were hard to get in the Song Dynasty.D. By the Southern Song Dynasty, books had helped people get to higher social positions.3. Why does the author write this passage?A. To show that Buddhism was popular in the Tang Dynasty.B. To introduce the early history of printing.C. To memorize Bi Sheng, developing the moveable type printing.D. To indicate the advantages of moveable type printing.BI’ve long believedthat positive living isn’t about being optimistic every minute of every day. That kind of permanently happy state can’t be the goal, because it’s impossible to achieve.It turns out that psychological research finds true happiness comes from authentic positivity, and authentic positivity comes from emotional flexibility.Being flexible emotionally means being open to the full range of emotional experiences, including the challenging ones like anger, disappointment and sadness. Emotional flexibility means being able to shift behaviors and mindsets to meet different situational needs, and adapting when circumstances change.However, emotionally flexible people are not chameleons (变色龙) whose outlook changes based on which way the wind is blowing. Instead, emotional flexibility is a skill that helps people judge the complexities of daily life, and stick to their deeply held values.I’ve learned a new word that I’d like to share with you: Eudaimonia (幸福感). Eudaimonia is the opposite of hedonism (享乐主义), the idea that happiness comes from the constant pursuit of pleasure and avoidance of pain. Eudaimonia, by contrast, encourages us to pursue meaning and authenticity, growth and honest joy. Both are philosophical approaches to happiness, and recent psychological thought is leaning toward eudaimonia as a more sustainable, satisfying model.Eudaimonia was first mentioned by Aristotle, who got the term from the Greek word “daimon,” which means “true nature.” Tome, walking a positive path means accepting that we each have positive true nature and permanent goodness. What we learn from the concept of eudaimonia is that we are best equipped to realize this nature when we are emotionally honest and flexible.4. What is the author’s belief?A. People should live alone.B. People can’t always be happy.C. People can’t always achieve their goals.D. People should pursue true achievements.5. What do enmotionally flexible people commit themselves to?A. Their strongly believed values.B. Their different needs.C. Permanent happiness.D. The pursuit of hedonism.6. How can people gain eudaimonia according to the author?A. By being honest to others.B. By changing true nature.C. By keeping realstically optimistic.D. By pursuing pleasure constantly.7. Which of the following is a suitable title for the text?A. What is the meaning of eudaimonia?B. What should we do to keep positive?C. How can we keep happy forever?D. Why can’t people be happy all the time?CThink ofJapanin the spring and the image that comes to mind is likely the country’s famous cherry blossoms, also known as “Sakura” — white and pink flowers, blooming across cities and mountains.The flowers, which experience a “peak bloom” that only lasts a few days, have been loved inJapanfor more than a thousand years. Crowds celebrate with viewing parties,flockingto the most popular locations to take photos and have picnics underneath the branches.But this year, cherry blossom season has come and gone in the blink of an eye, in one of the earliest blooms on record. Scientists warn it’s a symptom of the larger climate crisis threatening ecosystems everywhere.Yasuyuki Aono, a researcher atOsakaPrefectureUniversity, has gathered records fromKyotoback to 812 AD from historical documents and diaries. In the central city ofKyoto, cherry blossoms peaked on March 26, the earliest in more than 1,200 years, Aono said. And in the capitalTokyo, cherry blossoms reached full bloom on March 22, the second-earliest date on record.The peak bloom dates shift every year, depending on numerous factors including weather and rainfall, but have shown a general trend of moving earlier and earlier. InKyoto, the peak date stayed around mid-April for centuries, but began moving into early April during the 1800s. The date has only dipped into late March a handful of times in recorded history.“Sakura blooms are very temperature sensitive,” said Aono. “Flowering and full bloom could be earlier or later depending on the temperature alone,” he said. “The temperature was low in the 1820s, but it has risen byabout 3.5 degrees Celsius to this day.”This year’s seasons in particular influenced the blossom dates, he added. The winter was very cold, but the spring came fast and unusually warm.8. What is the best title of the passage?A. Cherry blossom celebrations.B. Warning of a climate crisis.C. A strong love for cherry blossom.D. Cherry blossom season coming earlier.9. What does the underlined word “flocking” mean?A. Blocking.B. Flooding.C. Running.D. Following.10. What can we infer from paragraph 5?A. The peak blossom dates fall on a fixed date.B. The cherry blossom rarely peaks in March.C. The peak bloom dates mainly depend on weather and rainfall.D. Cherry blossom peaks around mid-April inTokyo.11. What is the author’s purpose in writing the passage?A. To inform people the date of cherry blossom.B. To show a study on cherry blossom dates.C. To present a Japanese tradition of cherry blossom celebration.D. To make people aware of the influence of climate change on cherry blossom.D12. The five passes all include ________.A. a dinner cruiseB. a magic showC. a city tourD. a trolley ride13. Accordingto the rules and restrictions, ________.A. visitors can return their ticketsB. reservations cannot be cancelledC. passes cannot be shared among usersD. users can visit attractions more than once14. To make reservations, you can ________.A. write an e-mailB. make a phone callC. send a text messageD. fill out an online form15. In which section of a newspaper would you most likely find this advertisement?A. Leisure & TravelB. Health & BeautyC. Restaurants & FoodD. Sports & Entertainment第二节(共5小题;每小题2分,满分10分)阅读下面短文,从短文后的选项中选出可以填入空白处的最佳选项。
2019届呼和浩特市高三年级第一次质量普查调研考试语文试题参考答案及评分标准一、现代文阅读(36分)(一)论述类文本阅读(本题共3小题, 9分)1.A 2. B 3. D(二)实用类文本阅读(本题共3小题,12分)4.(3分) C (此项内容是材料二棕榈股份的做法,“引入体育、旅游、教育等产业”须因地制宜,根据当地具体情况而定。
)5.(3分) D (“大中小城市和小城镇协调发展的城镇格局”是黄汉权谈论关于如何推进新型城镇化高质量发展的做法之一,与“美丽中国的协调发展”不是同一概念。
)6.(6分)①注重生态文明建设创造优美洁净生活居住环境。
②提升城市功能带来先进便捷的生活条件,包括交通、体育、教育、旅游等设施。
③发展经济提供大量就业机会,保障可持续发展的经济效益。
(评分标准:本题要求从生态环境、城市功能、经济效益三个角度分类作答,每条2分;其它答案若言之成理,也可酌情给分。
)(三)文学类文本阅读(本题共3小题,15分)7.(3分) A (B项肖飞没出息是父亲个人的想法,不是客观原因,父亲激他出去打工,也并不是真的不想养他了;C项花馍滞销时,没有提到发不出工资,一些人离开时是拿了钱的,大娘不忍心看到肖飞尴尬,才劝一部分人留下来,未必是坚信他一定成功;D项优优第一次看到肖飞的花馍,只是好奇感兴趣,并不是一看到就产生拿到网上卖的想法。
)8.(6分)①兴趣爱好。
从小喜欢捏面团,还常常去学习观摩婶子大娘们做花馍,回来独自研究。
②执着精神。
父亲不支持他做花馍,逼他去打工,他没有放弃,工作之余依然坚持自己的爱好。
(在竞争压力大,花馍滞销时,没有气馁,没有放弃,依然坚持下去。
)③创新精神。
花馍滞销时,通过研究发现问题,开发新样式,加入新鲜蔬菜水果汁调色等,生意好转。
④亲友支持。
女友优优不仅支持还提出合理建议,是他创业的动力。
(大娘没有离开,还劝其他巧手留下,在他事业遇到低谷时对他给予最有力的支持。
)(评分标准:分条作答,意思对即可,每条2分,答对三条满分。
2019-2020学年呼和浩特市第一中学高三英语一模试卷及参考答案第一部分阅读(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项ACharlie Thorne and the Last Equationby Stuart GibbsThe CIA is on a task to find an equation (方程式) called Pandora, which could destroy the world if the wrong people get it. For help, they turn to Charlie, a 12-year-old girl who's as smart as Albert Einstein. People who like action-packed mysteries will enjoy reading this exciting book.AstroNutsby Jon Scieszka and Steven WeinbergIn AstroNuts, the Earth has been destroyed by humans for thousands of years. Four animals set out from Mount Rushmore, the headquarters (总部) of NNASA. Their task is to find a new planet fit for human life. Finally, they discover one: Plant Planet. The story's theme (主题) is simple: Don't harm the planet. Readers who love fantasy will enjoy AstroNuts.Stargazingby Jen WangChristine hears that Moon, who's new in town, is the kind of kid who beats people up for fun. But Moon and her mum come to live with Christine's family, and the two kids become best friends. Moon even shares a big secret with Christine. Stargazing is based on author Jen Wang's experiences as a child. The story is about the power of friendship and how people are able to change.Roll with Itby Jamie SumnerRoll with It is a story about a 12-year-old girl named Ellie. She has difficulty walking on her own and uses a wheelchair. When Ellie and her mum move to another state to take care of Ellie's grandpa, she must learn to navigate (处理) a new school and new friendships. This page-turner is a must-read for everyone. It's a heartwarming story that really shows the value of familyand how being different is special.1. Which book tells readers to protect the place we live in?A.AstroNutsB.Stargazing.C.Roll with It.D.Charlie Thorne and the Last Equation.2. What makes Stargazing different from the other three books?A. It talks about friendship.B. It tells stories about animals.C. It contains lots of scientific knowledge.D. It was written according to the author's experiences.3. What happened to Ellie?A. She had difficulty in making friends.B. She had an accident which left her in a wheelchair.C. She went to a new school and had to start all over again.D. She lost her mum and was taken care of by her grandpa.BVolunteer DayWhat better way is there to enjoy your own hobbies while helping others at the same time? Come to Volunteer Day and choose which activity you’d like to join for the day. See below for a schedule of events on Volunteer Day.Volunteer Day schedule:7:30am.: Meet at the Community (社区) Center for juice and bagels.8:00—8:30 a.m.: Choose which activity you’d like to help with for the day.8:30 a.m.: Board the bus to your activity site.9:00 a.m.—3:30 p.m.: Work as a volunteer.3:30 p.m.: Board the bus that will take you back to the Community Center.See below for a list of volunteer opportunities for Volunteer Day so you can begin thinking about which activity you might want to join.A list of volunteer activities:Paint houses: Do you enjoy making art? If so, this volunteer opportunity might be just right for you! Happy Homes is a local organization that provides home repairs for needy people in the form of painting. For elderly or physically disabled people who cannot do repairs to their homes, Happy Homes provides volunteer painters torepaint old homes; outside or in. Happy Homes also provides painters to create beautiful wall paintings inside schools or community centers.Plant flowers: Do you enjoy being outside in nature? City Parks Association has many great opportunities for people who love to be outdoors. Help plant flowers and bushes in city parks; help lay paths at Cave Springs Park, or help pick up rubbish around the river banks. These activities are very active, so remember to be prepared with plenty of drinking water!Read to children: Do you enjoy working with young children? Do you like books? Love and Learning is an organization that provides volunteers to help children with learning disabilities. Read books out loud to groups of children four to six years old, or read one-on-one with struggling readers seven to eight years old.Play with animals: Do you love animals? Lovely Friends is an organization that visits local animal shelters and provides volunteers to spend time with the animals while their cages are being cleaned. Play with puppies, snuggle with cats, or hand-feed rabbits.4. At what time do volunteers leave for their activity sites?A. 7:30 a.m..B. 8:00 a.m.C. 8:30 a.m.D. 9:00 a.m.5. An outdoor lover probably takes part in ______.A. Plant flowersB. Paint housesC. Read to childrenD. Play with animals6. What do Lovely Friends volunteers do?A. Read books to children.B. Spend time with animals.C. Help plant bushes in parks.D. Pick up garbage along the river.7. The purpose of the passage is to _________.A. educate childrenB. attract volunteersC. comfort the elderlyD. encourage the disabledCIf you have ever been disappointed because you don’t have a good gardener ,the clever robot may one day become the helper of your indoor plantsThe Hexa Plant is a six-legged robot that has been specially made to care for the potted plant that carries on top of its head .Using light and heats sensors (传感器) the robot has the ability to carry its plant in and out the daylight .If the houseplant needs more sun,the Hexa will walk into the sunlight ;and if the houseplant is gettingtoo hot , the Hexa will go back into the area that blocks direct light The Hexa Plant will even do a little dance when it senses that the plant needs to be watered to warn its owner .The robot was developed by Vincross engineer and founder Sun Tianqi after he saw a dead sunflower sitting in the darkness in a room back in 2014 .” Plants only receive an action without responding ,”SunTianqi wrote in a blog post .” Whether they are being cut ,bitten ,burned or pulled from the earth ,or when they haven’t received enough sunshine ,water ,or are too hot or cold ,they will hold still and take whatever is happening to them .According to Sun Tianqi ,for billions of years ,plants have never experienced movement of any kind ,not even the simplest movement .In their whole lives ,they stick to where they were born .Sun Tianqi continued ,” Do they want break their own settings or have a tendency towards this ?I do not know the answer ,but would love to try to share some of this human tendency and technology with plants With the help of the robot ,plants can experience the move”.The Hexa Plant model robots are not for sale ,though Vincross does sell a Hexa robot model .It is said that in the near future the robots can open up a new market to watch over our household plants8. What can we learn about the Hexa Plant?A. It helps people do some gardening .B. It waters the plants through dancingC. It helps indoor plants get proper sunlightD. It carries the potted plant with its hands9. What does the author try to show through Paragraph 3?A. The way plants spend their whole livesB. The common way people deal with plantsC. The difference between plants and humansD. The cause of making the indoor plants’ helper.10. What does Sun Tianqi try do using this technology?A. To develop gardening skills.B. To draw people’s attention plantsC. make plants experience moveD. study the living conditions of plants11. What can be the best title for the text?A. A New Market for robotsB. An Indoor Plants’ HelperC. An Important Development in GardeningD The Tendency of Gardening in the FutureDWhen I was trying to find a place where to spend my December holidays, I met by chance some cheap flights to Iceland. After checking just a few winter pictures of Iceland, I realized that the country, known as the land of fire and ice, during the cold months of the year could offer me experiences I had never had before.For sure you can’t miss the chance to go to Iceland in winter if your traveling wish list includes at least one of the crazy experiences Iceland can offer. Iceland in the North Atlantic Ocean is a paradise (乐园) for all those who want to see the northern lights, experience cold weather conditions and put themselves in geothermal (地热的) baths while the snow is falling on their head.The best way to move around Iceland is with a rental car. Distances are huge and public transport in winter is not really common out of the major towns. As we wanted to be even more convenient we decided to rent a small camper (野营车). Sleeping and cooking in a camper saved us a lot of driving, money and gave us the chance tobe always in the right place at the right time.There were also no locals and in many cases no tourist facilities (设备). For us, as we slept in a camper, it was easier. But for tourists traveling by normal cars it is necessary to check the opening times ofhotels and restaurants as many of them run just from June to September.It is amazing to experience how the weather is changing in Iceland. However, Icelanders prefer to stay inside their houses. They have even no time to complain about the weather in December. All they care about is Christmas. They love to decorate their houses, sing Christmas songs and eat typical Christmas food.12. Why is Iceland famous as the land of fire and ice?A. Because tourists would like to play with fire on the ice.B. Because it is too dry to easily cause fire to happen.C. Because it is hot inside a house and cold outside.D. Because there exist hot springs and freezing ice.13. What did the author think of the rented camper?A. It was not only practical but also economical.B. It was convenient but cost them more money.C. It provided the best chance to see the new country.D. It was much faster than other public transport.14. What does the last paragraph imply?A. The Icelanders prefer to live with their family.B. The joy of Christmas drives the freezing weather away.C. December is the coldest month of the year.D. The Icelanders are always positive and stay outside.15. What does this passage most probably come from?A. A textbookB. A scientific reportC. A travel magazineD. A news report第二节(共5小题;每小题2分,满分10分)阅读下面短文,从短文后的选项中选出可以填入空白处的最佳选项。
2019-2020学年呼和浩特市第一中学高三英语模拟试卷及参考答案第一部分阅读(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项AAre you looking for somewhere special to go this weekend? Do you want to try something new?Check out one of these hot new restaurants.Fast BestFast food doesn't have to be junk food, as this café proves. Do you fancy a really good hamburger made with the best ingredients, or old-fashioned fish and chips fried to perfection, all on the table in super-quick time? Speed and quality are important here, and the prices aren't bad either.Your Local Caff (小餐馆)Remember when cafés served full English breakfasts—sausages, beans, fried bread, bacon and eggs—with a strong cup of tea? Well, this place still does and you can have your breakfast at any time you like during the day while you listen to your favourite tunes from the 1980s.Last Days of the RajA centrally located Indian restaurant, perfect for eating before or after the cinema or a show. In summer enjoy your meal in the beautiful garden. The most popular dishes are lamb and chicken cooked with mild, medium or hot spices. For brave customers there is extra hot!The Chocolate BoxThe owner of this small café used to cook all kinds of food, but then she realised she preferred desserts to anything else. If you want meat or fish, don't come here. They only do desserts! Lots of different kinds of sweets. Chocolate lovers will be excited by the range of chocolate cakes.1.Fast Best suits a person ______.A.who has a sweet toothB.who loves spicy foodC.who wants to have good breakfastD.who gets 30 minutes off for lunch2.Which is true about Last Days of the Raj?A.You can listen to great music in it.B.It serves hot food with pepper.C.It serves an all-day breakfast.D.It is prefect for vegetarians.3.Which restaurant serves only desserts and sweets?A.Fast Best.B.Your Local Caff.st Days of the Raj.D.The Chocolate Box.BEarthquakes are a natural disaster—except when they're man-made. The oil and gas industry has forcefully used the technique known as hydraulic fracturing (水力压裂法) to destroy sub-surface rock and liberate the oil and gas hiding there. But the process results in large amounts of chemical-filled waste water. Horizontal drilling (水平钻孔) for oil can also produce large amount of natural, unwanted salt water. The industry deals with this waste water by pumping it into deep wells.On Monday, the US Geological Survey published for the first time an earthquake disaster map covering both natural and “induced” quakes. The map and a report show that parts of the central United States now face a ground-shaking disaster equal to the famously unstable terrain (不稳定地形) of California.Some 7 million people live in places easily attacked by these man-made quakes, the USGS said The list of places at highest risk of man-made earthquakes includes Oklahoma, Kansas, Texas, Arkansas, Colorado, New Mexico, Ohio and Alabama. Most of these earthquakes are ly small, in the range of magnitude (震级) 3, but some have been more powerful, including a magnitude 5.6 earthquake in 2011 in Oklahoma that was connected to waste water filling.Scientists said they do not know ifthere is an upper limit on the magnitude of man-made earthquakes; this is an area of active research Oklahoma has had prehistoric earthquakes as powerful as magnitude 7.It's not immediately clear whether this new research will change industry practices, or even whether it will surprise anyone in the areas of newly supposed danger. In Oklahoma, for example, the natural rate of earthquakes is only one or two a year, but there have been hundreds since hydraulic fracturing and horizontal drilling, with the waste water filling, became common in the last ten years.4. What kind of human activities can cause earthquakes?A. The man-made produced waste water in the factories.B. The process of digging deep wells in those poor areas.C. The advanced techniques used to deal with waste water.D. The oil or gas industry's work connected with the earth.5. What does the underlined word “induced” in paragraph 2 mean?A. Man-made.B. Reduced.C. Newly-built.D. Controlled.6. How much magnitude can man-made earthquakes reach?A. It's been said as small as magnitude 3.B. It has been said as high as magnitude 7.C. It's being studied without a final conclusion.D. It has risen by an average of magnitude 5. 6.7. What is the best title for the text?A. Natural Earthquakes in America Are Disappearing NowB. 7 Million Americans at Risk of Man-Made EarthquakesC. Time for Oil and Gas Industry Change Their Working PracticeD. More Often Earthquakes as Powerful as Magnitude 7 in AmericaCThere are many useful things we can do each day to feel better. It may take some efforts and time to make a habit of drinking 8 glasses of water daily or thinking more positively, but it is well worth it. What things do you do every day to feel better?Probably the healthiest thing you can do to feel better each day is to exercise early in the morning. You don't have to run the whole morning or spend a few hours in the gym. Even doing some easy exercise like walking, sit-ups or jumping the rope will help you feel better in no time!Again, due to our busy schedules, we don't get enough sleep each night. If you have trouble falling asleep, avoid watching TV or surfing the Internet right before bed. Also, try to make healthy bedtime snack choices and don't drink tea or coffee too late in the day.If you drink 3 glasses of water, 4 glasses of coffee or tea and a glass of soda each day and think that you drink enough water, think again. Your body needs water (not coffee or soda!) to function properly. Aiming to drink 7-8 glasses of water each day can make you feel better.Being positive is the key to a longer life. Positive thoughts can help improve your overall heath. Life is full of stressful situations and it's hard to stay cheerful when everything goes wrong, but your positive attitude can help you solve any problem and fight any stress faster and easier. Your positive attitude is especially good for your heart health. Smile, stay positive and live a longer life!8. In the author's opinion which can benefit us most in order that we feel better?A. Sleeping enough.B. Drinking enough water.C. Thinking more positively.D. Taking morning exercise.9. Which of the following agrees with what is said in Paragraph 3?A. Drinking tea or coffee makes us sleep less.B. Drinking tea before bed makes it harder to fall asleep.C. Watching TV or surfing the Internet leads to less sleep.D. Our busy schedules cause more difficulty in falling asleep.10. Why is water necessary to our body?A. Because it can make us feel better.B. Because it can have our body work smoothly.C. Because in can do more good to our body thancoffee.D. Because it can hep avoid feeling thirsty.11. What do we need most when everything goes wrong?A. Thinking positively.B. Thinking out wise ways.C. Having a right attitude.D. Staying cheerful.DThe air is thin and we have to rest several times on the shore hike from camp. To our left, snow-covered mountains disappear into clouds that seem almost close enough to touch. On the plain in front of us, we can just make out a herd of graceful animals. This is why we stay here.Tibetan antelopes live mainly on the plains of Tibet. Watching them move slowly across the green grass, I'm struck by their beauty. I'm also reminded of the danger they are in. They are being hunted illegally for their valuable fur.My guide is Zhaxi, a villager from Changtang. He works at the Changtang National Nature Reserve. The reserve is a safe place for the animals and plants of northwestern Tibet. To Zhaxi, protecting the wildlife is a way of life. “We're not trying to save the animals,” he says. “Actually, we're trying to save ourselves.”In the 1980s and 1990s the population of Tibetan antelopes dropped by more than 50 percent. Hunters were shooting antelopes to make money. Their living places were becoming smaller as new roads and railways were built.In order to save Tibetan antelopes, the Chinese government placed them under national protection. Zhaxi and volunteers watched over the antelopes day and night to keep them safe from attacks. Bridges and gates were added to let the antelopes move easily and keep them safe from cars and trains.The measures were effective. The antelope population has recovered and in June 2015, the Tibetan antelopewasremovedfrom the endangered species list. The government, however, does not intend to stop the protection program since the threat to the Tibetan antelope has not yet disappeared. Only when we learn to exist in harmony with nature can we stop being a threat to wildlife and to our planet.12. What can we learn from Zhaxi's words in paragraph 3?A. Protecting the animals can make money.B. Protecting the animals is protecting ourselves.C. He is not fond of protecting the animals.D. The reserve is only safe for wild animals.13. What is mainly talked about in paragraph 4?A. Why hunters hunt Tibetan antelopes.B. Why antelopes' living places changed.C. Why antelopes' number dropped greatly.D. Why the 1980s and the 1990s are unusual.14. What does the underlined word “removed” in the last paragraph probably mean?A. Deleted.B. Changed.C. Migrated.D. Recognized.15. What might be the future condition of Tibetan antelopes according to the last paragraph?A. They will be over-populated.B. They will be a threat to man and other wildlife.C. They will be on the endangered species list again.D. They will be in harmony with nature and humans.第二节(共5小题;每小题2分,满分10分)阅读下面短文,从短文后的选项中选出可以填入空白处的最佳选项。
2019年呼和浩特市高三年级第一次统考试卷生物试题答案一、选择题(本题包括6个小题,每小题6分,共36分,每小题只有一个选项符合题意)1.A2.C3.C4.C5.B6.D二、非选择题(一)必考题(共39分)29.(除标注外,每空1分,共9分)(1)没有核膜包被的细胞核25(2)呼吸45(3)不能35℃时离体发菜细胞的真实光合速率是呼吸速率的2倍,离体发菜细胞进行12小时光合作用制造的有机物量等于24小时呼吸作用消耗的有机物量,因此一昼夜有机物积累量为0,所以不能正常生长(35℃时净光合速率等于呼吸作用速率,12小时光照条件下积累的有机物等于12小时黑暗条件下消耗的有机物,因此一昼夜有机物积累量为0,所以不能正常生长)(2分)的还原(消耗)速率加快,合成速率不变,导致C3化(4)增强光照,细胞中ATP和[H]的量增加,C3合物减少(2分)30(每空1分,共8分)(1)②(2)神经神经递质(3)体液(血液)(4)4协同(5)反馈(负反馈)保证激素和酶含量的相对稳定,维持生命活动的正常进行31(每空1分,共8分)(1)消费者(2)标志重捕法鸟类活动能力强,活动范围大(3)森林森林生态系统由于丰富度高,营养结构复杂,自我调节能力强,抵抗力稳定性高水平结构食物条件和栖息空间(4)分解者的分解量(粪便量、分解者的分解量)32.(每空2分,共14分)(1)白眼(2)红眼卷刚毛白眼直刚毛红眼直刚毛(3)不遵循两对基因位于一对同源染色体上红眼直刚毛和白眼卷刚毛(二)选考题(共15分)37.【生物——选修1:生物技术实践】(除标明外,每空2分,共15分)(1)由蓝变绿再变黄(1分)取适量培养液的滤液注入干净的试管中,再向试管中滴加酸性重铬酸钾溶液,振荡摇匀后观察溶液顔色的变化(2)高压蒸汽灭菌50酒精灯火焰(3)小于黑两个或多个大肠杆菌连在一起时,平板上只能观察到一个菌落38.【生物——选修3:现代生物科技专题】(除标明外,每空2分,共15分)(1)剪碎(1分)胰蛋白(2)抗生素接触抑制(3)噬菌体噬菌体的宿主细胞是细菌而不是家蚕(4)抗原-抗体杂交技术杂交带注:在非选择题中,考生若有其他正确表述,同样给分。