【高三2018瓦房店一模】辽宁省瓦房店市2018届高三下学期第一次模拟考试 文综
辽宁省瓦房店市2018届高三下学期第一次模拟理综化学试卷+Word版含解析
辽宁省瓦房店市2018届高三下学期第一次模拟理综化学试题1. 化学与生活密切相关，下列说法正确的是A. 月饼因为富含油脂而易发生氧化，保存时常放入装有硅胶的透气袋B. 《抱朴子·金丹篇》中记载:“丹砂烧之成水银，积变又还为丹砂”。
该过程发生了氧化还原反应C. 酸雨样品露天放置段时间，酸性减弱，是由于酸雨所含成分被氧化D. 含磷污水是很好的肥料，可灌溉庄稼。
可直接排放到自然界水体中【答案】B【解析】A．硅胶具有吸水性，不具有还原性，可以用于食品干燥，不能用于防止富含油脂的月饼被氧化，故A错误；B．根据题意，丹砂(HgS)烧之成水银---即红色的硫化汞(即丹砂)在空气中灼烧有汞生成，反应的化学方程式为：HgS Hg+S，汞和硫在一起又生成硫化汞，反应的化学方程式为：Hg+S═HgS，此过程中存在化合价变化，发生氧化还原反应，故B正确；C．二氧化硫导致酸雨，酸雨样品露天放置一段时间pH减小，生成的亚硫酸被氧化生成硫酸，酸性增强，故C错误；D．含磷的污水虽然是很好的肥料，水中含量过高时会造成水体富营养化，致使水生藻类大量繁殖，由于水中缺氧造成水中生物大量死亡，遗体腐败，水质恶化，所以不能直接排放，故D错误；故选B。
2. 设N A为阿伏伽德罗常数的值，下列说法正确的是A. 两份2.7g铝分别与100mL浓度为2mol/L的盐酸和氢氧化钠溶液充分反应，转移的电子数均为0.3N AB. 50℃时，1L.pH=1的H2SO4溶液含H+的数目为0.1N AC. 氢氧燃料电池负极消耗1.12L气体时，电路中转移的电子数为0.1N AD. 1molNaHSO4在熔融状态下电离出的阳离子数为2N A【答案】B【解析】A、2.7g铝的物质的量为0.1mol，和盐酸反应时，需要的盐酸的物质的量为0.3mol，故盐酸不足，铝和盐酸反应时过量，则转移的电子小于0.3N A个，故A错误；B、pH=1的硫酸溶液中，氢离子浓度为0.1mol/L，故1L溶液中氢离子的物质的量为0.1mol，个数为0.1N A个，故B正确；C．未告知气体所处状态，无法计算1.12L气体的物质的量，故C错误；D、熔融状态下，硫酸氢钠电离的阳离子是钠离子，1molNaHSO4完全电离出的阳离子数为N A，故D错误。
辽宁瓦房店市2018届高三下学期一模拟英语试题及解析
瓦房店市2018届高三下学期一模英语试题第I卷第一部分：听力（共两节，满分30分）做题时，先将答案标在试卷上。
录音内容结束后，你将有两分钟的时间将试卷上的答案转写到答题卡上。
第一节（共5小题；每小题1.5分，满分7.5分）请听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. What are the speakers probably going to tell Jennifer?A. Not to worry about what people think.B. To spend more time on her studies.C. To get them tickets to the volleyball game.2. What does the man imply about Paul?A. He has already asked for help.B. He was the last one to use the computerC. He doesn’t know a lot about the computer.3. What’s the man’s job now?A. He works in a car factory.B. He works in an office.C. He is out of work now.4. Where are the two speakers?A. In Britain.B. In USA.C. In France.5. What can be inferred about the man?A. Tonight’s exam is the easiest one.B. He wishes he could go to a concert.C. He did well in two of his exams.第二节（共15小题；每小题1.5分，满分22.5分）请听下面5段对话或独白。
辽宁省瓦房店市2018届高三下学期第一次模拟考试数学理
2018年瓦房店市第一次模拟考试高三数学(理科)时间:120分钟分数:150分一、选择题：本大题共12个小题,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. 已知全集，集合，，则（）A ． B． C ． D ．2. 若复数，则复数所对应的点在（）A ．第一象限B ．第二象限 C．第三象限 D ．第四象限3.以下有关命题的说法错误的是（）A ．命题“若，则”的逆否命题是“若，则”B ．“”是“”的充分不必要条件C. 命题“，使得，则:“，”D ．若为假命题，则、均为假命题4. 某城市收集并整理了该市2017年1月份至10月份各月最低气温与最高气温(单位：℃) 的数据，绘制了如图的折线图. 已知该市的各月最低气温与最高气温具有较好的线性关系，则根据该折线图，下列结论错误的是（）A ．最低气温与最高气温为正相关B ．10月的最高气温不低于5月的最高气温C. 月温差(最高气温减最低气温)的最大值出现在1月 D ．最低气温低于0℃的月份有 4 个5.《九章算术》是我国古代内容极为丰富的数学名著，书中有如下问题：“今有阳马，广五尺，袤七尺，高八尺,问积几何?”其意思为：“今有底面为矩形，一侧棱垂直于底面的四棱锥，它的底面长、宽分别为7尺和5尺，高为8尺，问它的体积是多少?”若以上的条件不变，则这个四棱锥的外接球的表面积为（）UZ 220,M x x x x Z 1,0,1,2N ()U C M N 1,21,00,11,22i z i z 2430xx 3x 3x 2430x x 1x 0x :P x R 210x x P x R 210x x p q P gA ．平方尺B ．平方尺 C.平方尺 D ．平方尺6.执行下面的程序框图,如果输入的,,那么输出的的值为（）A ． 3B ． 4 C. 5 D ．67.已知实数满足，则的最大值为（）A ．-4B ． C.-1 D ．-28.设为空间两条不同的直线，，为空间两个不同的平面，给出下列命题：①若，，则；②若，，则；③若，且，，则④若，且，则其中所有正确命题的序号是（）A ．①②B ．②③ C. ③④ D ．①④9. 如图所示,在边长为1的正方形中任取一点，则点恰好取自阴影部的概率（）A ． B ． C. D ．1281381401421a 2b n ,x y 10200x y x y x 2z x y 52,m n m //m //m //n //m n m n //m //n //m //n //m nO A B C P P 15131416。
2018届辽宁省瓦房店市高三下学期第一次模拟文综历史试题(解析版)
2018届辽宁省瓦房店市高三下学期第一次模拟文综历史试题（解析版）1. 西周时期天子举行宴会的乐舞规格为八份（佾为乐舞编队，一份八人），诸侯用六佾，卿大夫用四佾。
春秋后期鲁国卿大夫季孙氏以“八佾舞于庭”。
春秋后期宴会乐舞使用规格的变化反映出A. 礼乐文化秩序尚不完善B. 贵贱等级界限已被打破C. 王权势力影响不复存在D. 传统政治秩序趋向瓦解【答案】D【解析】材料表明季氏只有用四佾的资格，但他却用了天子规格的乐舞，这是越轨的行为，是典型的破坏周礼的事件。
反映了春秋末期，礼崩乐坏，奴隶制统治秩序处于土崩瓦解状态，故D正确；春秋后期，不是礼乐文化秩序尚不完善，而是季孙氏破坏礼乐制度，排除A；B选项“贵族等级界限已被打破”不符合史实；“王权势力影响不复存在”不符合史实，排除C。
2. 明代设吏、户、礼、兵、刑、工六科，每科设给事中4至10人不等。
六科按吏、户、礼、兵、刑、工六部的业务进行对口监察。
当时规定，以皇帝名义发出的制敕，给事中要对之进行复核，看其中有无不妥之处。
如有发现，可以封还并奏报。
据此判断，明代六科给事中类似于A. 秦汉时期的九卿B. 隔唐的门下省C. 宋初的中书门下D. 清朝的军机处【答案】B【解析】根据材料信息并结合所学知识可知，明代六科为中央监察部门，掌侍从、规谏、补阙、拾遗、稽察六部百司之事。
六科对于皇帝诏令有不妥之处可提出异议，并将其封还天子，不予草诏公布，是为帮助皇帝妥善处理政务服务的。
故材料所涉明代六科给事中的职能与隋唐时期的门下省类似，故B项正确。
秦汉时期的九卿是指奉常、郎中令、卫尉、太仆、廷尉、典客、宗正、治粟内史、少府。
九卿作为中央行政机关分掌具体行政事务，如祭祀、礼仪、军事、行政、司法、文化教育等，与材料信息不符，A项可排除；宋代设中书门下为行政机构，其长官的职务相当于宰相，与材料信息不符，C项可排除；清代军机处是辅助皇帝处理政务的最重要的中枢机构，军机大臣均为钦定，只能秉承皇帝旨意办事，与材料信息不符，D 项可排除。
2018届辽宁省瓦房店市高三下学期第一次模拟英语试题(解析版)
辽宁省瓦房店市2018届高三下学期第一次模拟英语试题第I卷第一部分：听力（版权所有：百强校英语解析团队专供）（共两节，满分30分）做题时，先将答案标在试卷上。
录音内容结束后，你将有两分钟的时间将试卷上的答案转写到答题卡上。
第一节（共5小题；每小题1.5分，满分7.5分）请听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. What are the speakers probably going to tell Jennifer?A. Not to worry about what people think.B. To spend more time on her studies.C. To get them tickets to the volleyball game.2. What does the man imply about Paul?A. He has already asked for help.B. He was the last one to use the computerC. He doesn’t know a lot about the computer.3. What’s the man’s job now?A. He works in a car factory.B. He works in an office.C. He is out of work now.4. Where are the two speakers?A. In Britain.B. In USA.C. In France.5. What can be inferred about the man?A. Tonight’s exam is the easiest one.B. He wishes he could go to a concert.C. He did well in two of his exams.第二节（共15小题；每小题1.5分，满分22.5分）请听下面5段对话或独白。
辽宁省瓦房店市2018届高三下学期第一次模拟考试语文试题及答案
2018届辽宁省瓦房店市高三下学期第一次模拟语文试卷第I卷阅读题（70分）一、现代文阅读（35分）（一）论述类文本阅读（9分，每小题3分）阅读下面的文字，完成1-3题。
中华是礼仪之邦，礼是中国文化之心。
流传至今的儒家“十三经”中有三步礼学经典，习称“三礼”，一部是《仪礼》，记述周代冠、婚、丧、祭诸礼的仪式；另一部是《周礼》，记载理想国的官制体系；还有一部就是《礼记》，是孔门七十子后学阐发礼义的文集，凡四十九篇，虽以思想隽永、说理宏通见长，但亦不乏细节描述。
《礼记》全书主要有语录、条记、议论等形式，内容贴近生活，文字相对浅近。
今人读《礼记》，至少可以收获礼仪规范。
礼在社会生活层面属于行为规范，因而具有鲜明的可操作性的特点。
《礼记》记载了许多言谈举止方面的细节，尽管时代不同了，但其中不少内容依然可以继承。
例如《礼记》提到礼仪场合中的仪容仪态时说，“足容重”，步履要稳重；“手容恭’’，拱手要高而端正；“目容端”，目光不可睇视；“口容止”，嘴形静止不妄动；“声容静”，不咳嗽、打喷嚏，哕咳；“头容直”，头部正直，不左右倾斜；“气容肃”，不喘大气；“色容庄”，神色庄重。
《礼记》还提及各种礼仪禁忌，如”毋嗷应”，不要用号呼之声回应对方的呼唤；“毋怠荒”，体态要整肃，不可懈怠；“坐毋箕”，坐着，不可将双腿向两侧张开；“暑毋褰裳”，即使是暑天，也不要将裳的下摆向上撩起。
这些都是文明时代民众必备的知识。
如何得体地访客、与尊长相处，也是《礼记》多次谈到的内容。
《礼记》说：“将上堂，声必扬。
户外有二屦，言闻则入，言不闻则不入。
”拜访他人，即将上堂时，要抬高说话声，旨在使室内的主人知道客人已到，而有所准备。
如果房门口有两双鞋，房内的说话声清晰可闻，就可以进去；如果说话声听不到，说明他们的谈论比较私密，此时不可贸然进入。
《札记》还说“毋侧听”，就是不要耳朵贴墙偷听别人谈话，这样做很不道德，可见古人把尊重他人隐私作为做人的原则。
辽宁省瓦房店市2018届高三下学期第一次模拟考试数学(理)试题及答案
2018年瓦房店市第一次模拟考试高三数学(理科)时间:120分钟分数:150分一、选择题：本大题共12个小题,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. 已知全集U Z =，集合{}220,M x x x x Z =--<∈，{}1,0,1,2N =-，则()U C M N ⋂=（ ） A ．{}1,2- B ．{}1,0- C ．{}0,1 D ．{}1,2 2. 若复数2iz i-=-，则复数z 所对应的点在（ ） A ． 第一象限 B ．第二象限 C ． 第三象限 D ．第四象限 3.以下有关命题的说法错误．．的是（ ） A ．命题“若2430x x -+=，则3x =”的逆否命题是“若3x ≠，则2430x x -+≠” B ．“1x >”是“0x >”的充分不必要条件C. 命题:P “x R ∃∈，使得210x x ++<，则P ⌝:“x R ∀∈，210x x ++≥” D ．若p q ∧为假命题，则P 、g 均为假命题4. 某城市收集并整理了该市2017年1月份至10月份各月最低气温与最高气温(单位：℃) 的数据，绘制了如图的折线图.已知该市的各月最低气温与最高气温具有较好的线性关系，则根据该折线图，下列结论错误的是（ ） A ．最低气温与最高气温为正相关 B ．10月的最高气温不低于5月的最高气温 C. 月温差(最高气温减最低气温)的最大值出现在1月 D ．最低气温低于0℃的月份有4 个 5.《九章算术》是我国古代内容极为丰富的数学名著，书中有如下问题：“今有阳马，广五尺，袤七尺，高八尺,问积几何?”其意思为：“今有底面为矩形，一侧棱垂直于底面的四棱锥，它的底面长、宽分别为7尺和5尺，高为8尺，问它的体积是多少?”若以上的条件不变，则这个四棱锥的外接球的表面积为（ ）A ．128π平方尺B ．138π平方尺 C.140π平方尺 D ．142π平方尺 6.执行下面的程序框图,如果输入的1a =,2b =,那么输出的n 的值为（ ）A ． 3B ． 4 C. 5 D ．67.已知实数,x y 满足10200x y x y x -+≤⎧⎪+-≤⎨⎪≥⎩，则2z x y =-的最大值为（ ）A ．-4B ．52-C.-1 D ．-2 8.设,m n 为空间两条不同的直线，α，β为空间两个不同的平面，给出下列命题： ①若m α⊥，//m β，则αβ⊥； ②若//m α，//n α，则//m n ；③若m α⊂，n α⊂且//m β，//n β，则//αβ ④若m α⊥，//n β且//αβ，则m n ⊥ 其中所有正确命题的序号是（ ）A ． ①②B ． ②③ C. ③④ D ．①④9. 如图所示,在边长为1的正方形OABC 中任取一点P ，则点P 恰好取自阴影部的概率（ ） A ．15 B ．13 C. 14 D ．1610. 在ABC ∆中内角,,A B C 的对边分别为,,a b c ，若4cos 5A =,5cos 13C =，1a =，则b 值是（ ） A ．2113B ．1213 C.513 D ．201311. 某几何体的三视图如图所示，则该几何体的体积是（ ） A ．16+243π B ．16+163π C. 8+83π D ．16+83π12. 已知双曲线2222:1x y C a b-=（0,0a b >>）的右支与抛物线24x y =交于,A B 两点，F 是抛物线的焦点，O 是坐标原点，且4AF BF OF +=，则双曲线的离心率为（ ）A. 623223第Ⅱ卷（共90分）二、填空题（每题5分，满分20分，将答案填在答题纸上）13.65()x x x的展开式的常数项是 ．14. 直线20ax y +-=与圆22:4C x y +=相交于,A B 两点，若2CA CB ⋅=-u u u r u u u r,则a = ．15. 市内某公共汽车站6个候车位(成一排)现有3名乘客随便坐在某个座位上候车，则恰好有2个连续空座位的候车方式的种数是 .16. 已知定义在R 上的函数()f x 是奇函数，且满足3()()2f x f x -=，(2)3f -=-，数列{}n a 满足11a =-且11n n a a -=-（,2n N n *∈≥），则56()()f a f a += ．三、解答题：（本大题共6小题，共70分.解答应写出文字说明、证明过程或演算步骤）17. 在平面直角坐标系xOy 中，已知向量22,22m ⎛⎫=- ⎪ ⎪⎝⎭，(sin ,cos )n x x =，0,2x π⎛⎫∈ ⎪⎝⎭ （Ⅰ）若m n ⊥，求tan x 的值； （Ⅱ）若m 与n 的夹角为3π，求x 的值. 18.为了调查观众对电视剧《风筝》的喜爱程度，某电视台举办了一次现场调查活动.在参加此活动的甲、乙两地观众中，各随机抽取了8名观众对该电视剧评分做调查(满分100分)，被抽取的观众的评分结果如图所示（Ⅰ）计算：①甲地被抽取的观众评分的中位数；②乙地被抽取的观众评分的极差；（Ⅱ）用频率估计概率,若从乙地的所有观众中再随机抽取4人进行评分调查,记抽取的4人评分不低于90分的人数为X ，求X 的分布列与期望；（Ⅲ）从甲、乙两地分别抽取的8名观众中各抽取一人，在已知两人中至少一人评分不低于90分的条件下，求乙地被抽取的观众评分低于90分的概率.19.如图,已知AB BC ⊥，//BE CD ，90DCB ∠=︒，平面BCDE ⊥平面ABC ， 2AB BC BE ===，4CD =，F 为AD 中点 （Ⅰ）证明：EF ⊥平面ACD ；（Ⅱ）求直线CE 与平面ABD 所成角的余弦值.20.已知椭圆2222:1x y C a b+=（a b c >>）的短轴长为226(3,0)A ，P 是C 上的动点，F 为C 的左焦点. （Ⅰ）求椭圆C 的方程；（Ⅱ）若点P 在y 轴的右侧，以AP 为底边的等腰ABP ∆的顶点B 在y 轴上，求四边FPAB 面积的最小值.21.已知函数()1ln f x ax x =--，a R ∈. （Ⅰ）讨论函数()f x 的单调区间；（Ⅱ）若函数()f x 在1x =处取得极值，对(0,)x ∀∈+∞，()2f x bx ≥-恒成立，求实数b 的取值范围.请考生在22、23两题中任选一题作答，如果多做，则按所做的第一题记分.22.选修4-4：坐标系与参数方程在直角坐标系xOy 中，圆1C 的参数方程为44cos 4sin x y αα=+⎧⎨=⎩（α为参数），圆2C 的参数方程2cos 22sin x y ββ=⎧⎨=+⎩（β为参数），以O 为极点，x 轴的正半轴为极轴建立极坐标系. （Ⅰ）求1C 和2C 的极坐标方程；（Ⅱ）1C 和2C 交于,O P 两点，求P 点的一个极坐标. 23.选修4-5：不等式选讲已知函数()21f x x x a =+--（a R ∈） （Ⅰ）当2a =时，求不等式()0f x ≥的解集；（Ⅱ）设函数()()3g x f x x a =+-，当1a =时，函数()g x 的最小值为t ，且212t m n+=（0,0m n >>），求m n +的最小值.高三理科数学答案一、选择题1-5: AADDB 6-10: BDDCA 11、12：DA二、填空题13. 5 14. 三、解答题17.解：（1）因为(sin ,cos )cos 2222m x x x x ⎛=-⋅=-= ⎝⎭，所以sin cos x x =，所以sin tan 1cos xx x==. 所以tanx=（2）由（1）依题知sin cossin 34x m n x m n πππ⎛⎫- ⎪⋅⎛⎫===- ⎪⎝⎭，所以1sin 42x π⎛⎫-= ⎪⎝⎭，又因为,444x πππ⎛⎫-∈- ⎪⎝⎭，所以46x ππ-=，即512x π=18.（Ⅰ）由茎叶图可知,甲地被抽取的观众评分的中位数是83，乙地被抽取的观众评分的极差是977621-=（Ⅱ）记“从乙地抽取1人进行评分调查，其评分不低于90分”为事件M ，则21()84P M == 随机变量X 的所有可能取值为0,1,2,3,4,且1(4,)4X B :所以4411()()(1)44kk k P x k C -==-，0,1,2,3,4k =所以X 的分布列为∴()414E x =⨯= (Ⅲ)由茎叶图可得，甲地被抽取的8名观众中有2名观众评分不低于90分，乙地被抽取的8名观众中有2名观众评分不低于90分，设事件A 为“从甲、乙两地分别抽取的8名观众中各抽取一人，两人中至少一人评分不低于90分”,事件B 为“从甲、乙两地分别抽取的8名观众中各抽取一人，乙地观众评分低于90分”，所以667()18816P A ⨯=-=⨯ 263()8816P AB ⨯==⨯ 根据条件概率公式，得3316()7716P B A ===.所以在已知两人中至少一人评分不低于90分的条件下，乙地被抽取的观众评分低于90分的概率为37. 19.解法一：证明：设AC 中点为G ，连FG ，BG ∵F 为AD 中点，∴//FG DC ，12FG DC = 又由题意//BE CD ，12BE CD =∴//EB FG ，且EB FG = ∴四边形BEFG 为平等四边形，∴//EF BG∵90DCB ∠=︒∴DC BC ⊥，又∵平面BCDE ⊥平面ABC ，平面BCDE I 平面 ABC BC =，DC ⊂平面BCDE ，∴DC ⊥平面ABC .又BG ⊂平面ABC ，∴DC BG ⊥，∴DC EF ⊥又AB BC =∴AC BG ⊥∴AC EF ⊥ ∵AC DC C =I ，AC ⊂平面ACD ，DC ⊂平面ACD ，∴EF ⊥平面ACD解法二：证明线段EB ⊥底面ABC ，再建系以B 为空间坐标原点，证明向量EF 与平面ACD 的法向量平行(Ⅱ)以点B 为原点，以BA 方向为x 轴，以BC 方向为y 轴，以BE 方向为z 轴，建立如图所示坐标系(0,0,0)B ，(0,0,2)E ，(2,0,0)A ，(0,2,0)C ，(0,2,4)D ，设平面ABD 的法向量(,,)n x y z =r，则00n BA n BD ⎧⋅=⎪⎨⋅=⎪⎩r u u u rr u u u r∴20240x y z =⎧⎨+=⎩取1z =，(0,2,1)n =-r (0,2,2)CE =-u u u r ∴310cos ,10225CE n CE n CE n⋅===⨯u u u r ru u u r r u u u r r 设直线CE 与平面ABD 所成角为θ，则310sin 10θ=，∴10cos 10θ= 即直线CE 与平面ABD 所成角的余弦值10.20.解:（Ⅰ）依题意得2222226b c a a b c ⎧=⎪⎪=⎨⎪=+⎪⎩解得62a b ⎧=⎪⎨=⎪⎩∴椭圆C 的方程是22162x y += (Ⅱ)设00000(,)(22,0,0)P x y y y x -<≠> 设线段AP 中点为M ∵(3,0)A ∴AP 中点003(,)22x y M +，直线AP 斜率为003y x -由ABP ∆是以AP 为底边的等腰三角形∴BM AP ⊥ ∴直线AP 的垂直平分线方程为000033()22y x x y x y -+-=--令0x =得220009(0,)2y x B y +-∵2200162x y +=∴20023(0,)2y B y --由(2,0)F -∴四边形FPAB面积20000023553()(2)2222y S y y y y --=+=+≥当且仅当00322y y =即02y =±时等号成立，四边形FPAB面积的最小值为. 21.解（1）①在区间(0,)+∞上，11()ax f x a x x-'=-=， 当0a ≤时，()0f x '<恒成立，()f x 在区间(0,)+∞上单调递减； 当0a >时，令()0f x '=得1x a =，在区间10,a ⎛⎫⎪⎝⎭上， ()0f x '<，函数()f x 单调递减，在区间1,a ⎛⎫+∞ ⎪⎝⎭上，()0f x '>，函数()f x 单调递增.综上所述：当0a ≤时，()f x 的单调递减区间是(0,)+∞，无单调递增区间； 当0a >时，()f x 的单调递减区间是10,a ⎛⎫ ⎪⎝⎭，单调递增区间是1,a ⎛⎫+∞ ⎪⎝⎭②因为函数()f x 在1x =处取得极值，所以(1)0f '=，解得1a =，经检验可知满足题意. 由已知()2f x bx ≥-，即1ln 2x x bx --≥-，即1ln 1+xb x x-≥对(0,)x ∀∈+∞恒成立， 令1ln ()1xg x x x=+-，则22211ln ln 2()x x g x x x x --'=--=， 易得()g x 在(20,e ⎤⎦上单调递减，在)2,e ⎡+∞⎣上单调递增，所以2min 21()()1g x g e e ==-，即211b e≤-.22. 解：（Ⅰ）圆1C 的普通方程为：22(4)16x y -+=，则1C 的极坐标方程为：8cos ρθ= 圆2C 的普通方程为：22(2)4x y +-=，则2C 的极坐标方程为：4sin ρθ= （Ⅱ）设(,)P ρθ，则有8cos 4sin θθ=，解得tan 2θ=，25sin θ=， 所以P 点的极坐标为8525(,arcsin )23.解:（Ⅰ）当2a =时，()0f x ≥化为2120x x +--≥ 当1x ≤-时，不等式化为40x --≥，解得4x ≤-当12x -<<时，不等式化为30x ≥，解得02x ≤< 当2x ≥时，不等式化为40x +≥，解得2x ≥ 综上不等式()0f x ≥的解集是{}40x x x ≤-≥或（Ⅱ）当1a =时，()21212114g x x x x x =++-≥++-= 当且仅当(1)(1)0x x +-≤时，即11x -≤≤时，等号成立 所以，函数()g x 的最小值4t = 所以2142m n +=，11128m n+= 11559()()282882888n m n m m n m n m n m n m n +=++=++≥⋅= 当且仅当1112828m n n m m n⎧+=⎪⎪⎨⎪=⎪⎩，即3438m n ⎧=⎪⎪⎨⎪=⎪⎩时等号成立所以m n 的最小值98。
英语_辽宁省瓦房店市2018届高三下学期第一次模拟英语试题含答案
辽宁省瓦房店市2018届高三下学期第一次模拟英语试题一、阅读选择1.When you're having a hard time with your homework or when you're preparing for your term paper, these student-focused websites can help you with just about anything you need. The key to getting the most out of these online resources is to know how they can best be used to your advantage.FacebookAlthough Facebook can be one of your biggest time-wasters and distractions when you are supposed to be getting work done, it can also be one of your most valuable resources. Most of your classmates will probably have a Facebook account, so anyone you need to connect with about a class you missed or about a problem is usually just a few clicks away. SparkNotesWith a free library of history timeline, philosophy study guides and library summaries, SparkNotes has covered just about any reading-related jam you find yourself in. Just run a search for the book, play, or short summary of the material you are expected to read.Do you finish every term with many expensive textbooks you will never open again? Instead of letting the money spent go to waste, get back some of your cash by selling your bookson Amazon.WikipediaWhile Wikipedia isn't aimed specifically at students, it is difficult to think of another website that does more to reduce the pain of paper writing and researching. Wikipedia gives you a quick way to find sources and get the details of almost any topic you need to research—all without walking to the library.（1）If you have a Facebook account, you ______.A may waste all of your timeB must be experiencing a hard timeC should share your every single ideaD can get your most valuable resources（2）What can NOT be done on any of these websites?A Selling old textbooks.B Preparing for term papers.C Building a library for free.D Turning to classmates for help.（3）Which can be most helpful while you're writing a research report?A Wikipedia.B Facebook.C .D SparkNotes.（4）The passage was mainly written to ______.A explain some websites for parentsB offer some websites to helpstudents C compare some amusement websites D introduce different parts of a website2. BEvery man wants his son to be somewhat of a clone, not in features but in footsteps. As he grows you also age, and yourambitions become more unachievable. You begin to realize that your boy, in your footsteps, could probably accomplish whatyou hoped for. But footsteps can be muddied and they can go off in different directions.My son Jody has hated school since day one in kindergarten. Science projects waited unt t moment. Book reportsweren't written until the final threat.I've been a newspaperman all my adult life. My daughter is a university graduate working towards her master's degree inEnglish. But Jody? When he entered the tenth grade he became a"vo-tech"student（技校学生）. They're called"motorheads"by the rest of the student body.When a secretary in my office first called him "`motorhead", I was shocked. "Hey, he's a good kid, " I wanted to say."And smart, really. "I learned later that motorheads are, indeed, different. They usually have dirty hands and wear dirty work clothes. Andthey don't often make school honor rolls（光荣榜）.But being the parent of a motorhead is itself an experience in education. We who labor in clean shirts in offices don'thave the abilities that motorheads have. I began to learn this when I had my car crashed. The cost to repair it was estimatedat$800.``Hey,Icanfixit,"saidJody.Idoubtedit,butlethimgoahead,forIhadnothingtolose.Myson,wi thothermotorheads,fixedthecar.Theygotpartsfromajunkyard,andabilityfromvo - techclasses.Thecostwas$25 instead of $800.Since 'lat first repair job, a broken air-conditioner, a non-functioning washer and a non-toasting toaster have been fixed.Neighbours and co-workers trust their car repairs to him. These kids are happiest when doing repairs. They joke and laugh and are living in their own relaxed world. And theirminds are bright despite their dirty hands and clothes.I have learned a lot from my motorhead: publishers need printers, engineers need mechanics, and architects need builders.Most important, I have learned that fathers don't need clones in footsteps or anywhere else.My son may never make the school honor roll. But he made mine.（1）What used to be the author's hope for his son?A To avoid becoming his clone.B To resemble him in appearanceC To develop in a different direction.D To reach the author's unachieved goals（2）What can we learn about the author's children?A His daughter does better in school.B His daughter has got a master's degree.C His son tried hard to finish homework.D His son couldn't write his book reports.（3）The author let his son repair the car because he believed that ________A his son had the ability to fix itB it would save him much timeC it wouldn't cause him any more lossD other motorheads would come to help（4）What did the author realize in the end?A It is unwise to expect your child to follow your path.B It is important for one to make the honor roll.C Architects play a more important role than builders..D Motorheads have greater ability than office workers.3.Young sunflowers turn and swing every day. New findings add to evidence that the plants are animal-like.Harmer, a professor in the University of Califomia at Davis, Department of Plant Biology, carried out a series of experiments on sunflowers in the field, in pots outdoors and in indoor growth chambers.By staking plants so that they could not move, Harmer showed that he could destroy their ability to track the sun. He also noticed that sunflowers prevented from moving were not as tough and leafy as those that were free to move. When plants were moved indoor with a settled overhead light, they continued to swing back and forth for a few days.The indoor plants did start tracking the "sun" again when the apparent source of lighting was moved across the room. The plants could reliably track the movement and return at night when the artificial day was close to a 24-hour cycle, but not when it was closer to 30 hours. When sunflowers track the sun, the cast sides of their stems grew more rapidly than the west sides. At night, the west sides grew faster as the stem swung the other way. The team identified a number of genes that were expressed at higher level son the sun ward side of the plant during the day or on the other side at night. A plant growth-regulating hormone, called auxin, appears to be a key driver.The "dance" to the sun cycle obviously slows when the sunflower matures（成熟）and its flowers open up. At that point, the plants stop moving during the day and settle down facing the sun in the cast."Bees like warm flowers." Harmer said, adding that the bees are cold-blooded, so landing on a warm flower saves them energy and perhaps feels really good."The morning warmth changes the flowers in a way to make them more appealing to insects, perhaps causing them to release more attractive scents earlier in the day." he said "We're currently testing this idea."（1）Why did Harmer do the experiment on sunflowers?A To see how sunflowers grow up.B To show what sunflowers' genes are.C To study why sunflowers track the sun.D To check if sunflowers swing in cloudy days.（2）What is the result of sunflowers being stopped from moving?A They will produce a number of new genes.B They will grow faster thanusual. C They won't swing back though set free. D They won't grow well.（3）What does the underlined word "hormone" probably mean in Paragraph 5?A Immune systemB proteinC chemical substanceD nutrient（4）What is the advantage of sunflowers' dance to the sun?A They attract more insects.B They save more energy.C They mature more rapidly.D They produce more flowers.4.A new international study shows that some people's biological clock plays a powerful role for their life expectancy, regardless of lifestyle choices.Published in the latest issue of Aging on Wednesday, the study has found the most definitive evidence to explain why some people keep healthy lifestyle but die younger than others. Geneticist Steve Horvath from the University of California, Los Angeles (UCLA) , led a team of 65scientists around the world to record age-related changes to human DNA, analyses blood samples collected from 13, 000 people and estimate their lifespan.A higher biological age, regardless of actual age, consistently predicts an earlier death, the study says，"You get people who are vegan, sleep 10hours a day, have a low-stress job, and still end up dying young, ’Horvath said in a statement.‘ We have shown some people have a faster innate aging rate."The findings discovered that 5 percent of the population ages at a faster biological rate, which translated to a roughly 50 percent higher than average risk of death at any age. "The great hope is that we find anti-aging interventions that would slow your innate aging rate," Horvath said, adding that " this is an important milestone to realizing this dream."（1）Some people keep healthy lifestyle but die younger than others because________．A their biological clock is not powerful enough．B the most definitive evidence has bee n found．C they have a higher actual age than others．D they ages at a relatively fa ster biological rate．（2）How was the study conducted？________A By collecting and analyzing data．B By interviewing lots of people．C By researc hing previous studies．D By studying different lifestyles．（3）According to the study，it can be inferred that________．A people who keep healthy lifestyle tend to live longer．B people's lifespan can be predi cted by their age．C 5percent of people are believed to have a faster innate aging rate．D anti-aging interventions have proved to slow the innate aging rate．（4）Which of the following would be the best title for the passage？________A We all should keep healthy lifestyle．B Geneticist finds anti-aging interventions． C Biological clock predicts life expectancy． D Horvath builds an important milestone．二、七选五5. You should make thorough plans before you undertake a camping trip． Just follow these simple camping guidelines to make your trip safe and rewarding．Selecting an appropriate tent（1）_______ When determining the size of your tent， you should take into account the number of campers as well as the camping equipment necessary for your trip． There should be enough room in the tent for the camping equipment．（2）_______Importance of foodWhile camping， you will need enough food to give you enough energy for your outdoor work．（3）_______You should use a two burner stove to do all your cooking． Insist on simplicity in cooking and use vegetables and ready﹣made food during your trip to minimize cooking time．Adequate sleep（4）_______ Nights are generally cooler than the days so you need to have enough warm clothes to feel comfortable enough to sleep during the night． When buying a sleeping bag，check that you feel comfortable in it． Extra air mattresses （气垫） may be included inyour camping equipment to make your bed more comfortable．（5）_______ Bear these camping guidelines in mind and make sure you are fully prepared to enjoy your camping trip．A． All campers should have adequate sleep during the night．B． Thus you must have an efficient arrangement for food preparation．C． The best camping trips are had by those people who prepare the best．D． Take healthy and nourishing food with you to meet energy demands during your trip．E．The comfort level in a tent determines the success of a camping trip．F． The size is the most important thing you should carefully consider when choosing a tent．G． It will destroy the mood of the entire camping trip if you don't have a good sleeping bag．三、完形填空6. My son Tom taught me a beautiful lesson today. He is three years old and it is amazing hatching him grow up.He called out to me today saying, “Papa, sit”. That usually means _______ everything and going next to him and sitting down to play with him. I did that, as he can be _______ and willnot stop calling out until I _______. He was playing with beads (珠子), pushing a string through them, which is a great exercise to help _______ fine motor skills. Then, after he finished playing with the beads, it was time to put them back in the box that they are stored in. I saw him_______ pick up each bead, look at it _______ it were made of chocolate and then placed it into its box.With over a hundred beads to go, I was getting _______. “What a long time it will take! Why cannot he _______ ten beads in one go and drop them in?” said my anxious mind. I noticed that he did this with as much_______ as he had while we were playing. I didn’t see any ________ between his play and his putting away the toy. Obviously he enjoyed both.Then it suddenly ________ me that this boy was enjoying the whole ________. The journey was his goal. For him the ________ was in the game and after the game, not just in the fun part. What a great perspective: to live each moment as it is the ________ moment; to do each task asit is the most awesome task. Nothing else ________.Looking at how ________ my son was putting beads into the box ________ me that the process was the goal. The joy of pilgrimage (朝圣) is not in getting there but in every ________ of the journey.This is what living in the NOW is all ________. Tom, my son, was showing me that it was about thoroughly enjoying every moment with ________ love and peace.（1）A wastingB leavingC takingD preparing（2）A stubbornB innocentC helpfulD humorous（3）A fell downB turned roundC burst outD gave in（4）A highlightB developC illustrateD identify（5）A gratefullyB eagerlyC carefullyD quickly（6）A as ifB even thoughC in caseD in that（7）A fascinatedB satisfiedC impatientD energetic（8）A packageB grabC deliverD replace（9）A confidenceB strengthC inspirationD involvement（10）A senseB differenceC needD value（11）A excitedB helpedC struckD encouraged（12）A processB morningC experimentD design（13）A victoryB challengeC difficultyD pleasure（14）A urgentB decisiveC perfectD dangerous（15）A mattersB happensC disappearsD works（16）A successfullyB peacefullyC responsiblyD systematically（17）A guaranteedB warnedC promisedD taught（18）A planB destinationC stepD detail（19）A forB withC aboutD from（20）A completeB availableC additionalD precious四、用单词的适当形式完成短文7. Last summer， as soon as school was over， I thought maybe I could spend the summer （1）________ a way different from previous ones． But how？ Perhaps I could take （2）________ part﹣time job and make some money． I （3）________（offer） an interview soon after I filed my application to Kentucky Fried Chicken． The interview was three days ahead．（4）________ （prepare） for it， I went through Interview Skills， a book．（5）________ prepares readers for job interviews． My mom and dad tried to help by （6）________ （give） me simulated （模拟的） interviews one after（7）________． I was all ready the day before the interview．I answered all of the manager's questions （8）________ （perfect）． After all， my mom and dad had expected all of them and I just needed to repeat the answers I hadprepared． Besides， I had carried myself well through the interview． My facial（9）________（express）， my voice，my……all were excellent． I felt the job was already mine． That night I calculated how （10）________money I would make， and I planned the ways I would like to spend it五、短文改错8. 注意：1．每句不超过两个错误；2．每处错误及其修改均仅限一词；3．只允许修改10处．My name is Alice， and I live in Beijing． I'm not happily every day． My parents always tell me，" You can't do that! You have to do this!" There are too much rules at my home． I have to get up early at 6：00and make bed． I can't listen to music while eaten． From Monday to Friday， I have to walk to school， so my parents think it good for healthy． But if I arrive lately for school， my head teacher will be angry． So I often feel tired when I reach to school． On weekends， I have to finish my homework after I can watch TV． These rules make me stress out 1need more time to play and relax． What should I do？六、提纲类作文9. 假定你是李华，你的英国朋友Leslie写信询问有关中国“五四青年节”的情况。
辽宁省瓦房店市2018届高三下学期第一次模拟考试文综
瓦房店市2018届高三下学期第一次模拟文综试题第Ⅰ卷本卷共35小题。
每小题4分，共140分。
在每个小题给出的四个选项中，只有一项是符合题目要求的。
读世界局部地区某月等温线示意图，完成1-3题。
1．图中PQ两点间的最短距离约为A．2200千米B．1000千米C．550千米D．500千米2．此时A．亚欧大陆等温线向南凸出 B．图示地区日出的地方时早于6时C．非洲最南端气候高温多雨 D．北印度洋海水呈顺时针方向流动3．有关图中海峡地理特征的叙述，正确的是A．处于信风带，风急浪高B．位于海沟，地壳活动活跃C．寒暖流交汇，鱼类丰富D．纬度较高，结冰期长下图为某城市3月底的平均气温及热力环流示意图。
读图，完成4-6题。
4. 丙处城市功能区最可能是A. 工业区B. 商业区C. 住宅区D. 公园绿地5. 图中甲、乙、丙、丁四地梨花最早开放的地点是A. 甲B. 乙C. 丙D. 丁6. 城市广泛采用种植草木的绿色屋顶，将A. 减少地区蒸发量B. 减弱城区热岛效应C. 增大城区径流量D. 增强城乡热力环流2017年秋，袁隆平主持的青岛市海水稻研究工程的海水稻正式测产，最高亩产近620公斤。
海水稻其实并不是在海水中生长的水稻，它生长在海边海水短期浸泡过的盐碱地中，所以被称为海水稻。
海水稻在条件恶劣的盐碱地生长，很少会患普通稻的病虫害。
据此完成7-9题7. 即使生长在盐碱地中，海水稻仍然获得高产，其主要原因是A. 水源充足B. 科技水平高C. 劳动力丰富D. 土壤改良8. 推广海水稻种植可以使我国A. 大量出口稻米B. 农业结构优化C. 人口素质提高D. 人口容量增加9. 有人担心在沿海滩涂大面积种植海水稻会带来某种严重的环境问题，这种环境问题是A. 湿地破坏B. 农药污染C. 海水入侵D. 水土流失2017年1月2日至3日，辽宁丹东地区迎来了本年的第一场降雪，东港地区积雪厚度达7厘米，这真是“2017年的第一场雪比往年来的稍早了一些”，据此，回答10-11题。
辽宁省瓦房店市2018届高三下学期第一次模拟英语试题word版有答案AlUAHK
第I卷第一部分：听力（共两节，满分30分）做题时，先将答案标在试卷上。
录音内容结束后，你将有两分钟的时间将试卷上的答案转写到答题卡上。
第一节（共5小题；每小题1.5分，满分7.5分）请听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. What are the speakers probably going to tell Jennifer?A. Not to worry about what people think.B. To spend more time on her studies.C. To get them tickets to the volleyball game.2. What does the man imply about Paul?A. He has already asked for help.B. He was the last one to use the computerC. He doesn’t know a lot about the computer.3. What’s the man’s job now?A. He works in a car factory.B. He works in an office.C. He is out of work now.4. Where are the two speakers?A. In Britain.B. In USA.C. In France.5. What can be inferred about the man?A. Tonight’s exam is the easiest one.B. He wishes he could go to a concert.C. He did well in two of his exams.第二节（共15小题；每小题1.5分，满分22.5分）请听下面5段对话或独白。
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瓦房店市2018届高三下学期第一次模拟
文综试题
第Ⅰ卷
本卷共35小题。
每小题4分，共140分。
在每个小题给出的四个选项中，只有一项是符合题目要求的。
读世界局部地区某月等温线示意图，完成1-3题。
1．图中PQ两点间的最短距离约为
A．2200千米B．1000千米C．550千米D．500千米
2．此时
A．亚欧大陆等温线向南凸出B．图示地区日出的地方时早于6时C．非洲最南端气候高温多雨D．北印度洋海水呈顺时针方向流动3．有关图中海峡地理特征的叙述，正确的是
A．处于信风带，风急浪高B．位于海沟，地壳活动活跃
C．寒暖流交汇，鱼类丰富D．纬度较高，结冰期长下图为某城市3月底的平均气温及热力环流示意图。
读图，完成4-6题。
4. 丙处城市功能区最可能是
A.工业区
B.商业区
C.住宅区
D.公园绿地
5. 图中甲、乙、丙、丁四地梨花最早开放的地点是
A.甲
B.乙
C.丙
D.丁
6. 城市广泛采用种植草木的绿色屋顶，将
A.减少地区蒸发量
B.减弱城区热岛效应
C.增大城区径流量
D.增强城乡热力环流
2017年秋，袁隆平主持的青岛市海水稻研究工程的海水稻正式测产，最高亩产近620公斤。
海水稻其实并不是在海水中生长的水稻，它生长在海边海水短期浸泡过的盐碱地中，所以被称为海水稻。
海水稻在条件恶劣的盐碱地生长，很少会患普通稻的病虫害。
据此完成7-9题
7. 即使生长在盐碱地中，海水稻仍然获得高产，其主要原因是
A. 水源充足
B. 科技水平高
C. 劳动力丰富
D. 土壤改良
8. 推广海水稻种植可以使我国
A. 大量出口稻米
B. 农业结构优化
C. 人口素质提高
D. 人口容量增加
9. 有人担心在沿海滩涂大面积种植海水稻会带来某种严重的环境问题，这种环境问题是
A. 湿地破坏
B. 农药污染
C. 海水入侵
D. 水土流失
2017年1月2日至3日，辽宁丹东地区迎来了本年的第一场降雪，东港地区积雪厚度达7厘米，这真是“2017年的第一场雪比往年来的稍早了一些”，据此，回答10-11题。
10. 俗话说“瑞雪兆丰年”，从地理的角度看是因为瑞雪能
①保证土壤有良好的墒情②带来纯洁和吉祥
③能够净化空气④能够减少病虫害
A. ①②
B. ②③
C. ②④
D. ①④
11. 降雪量与积雪深度是两个不同的概念，一般情况而言，降雪量与积雪深度的换算关系是1:15，气象部门规定：降雪量在0.1-2.4毫米为小雪，2.5-4.9毫米为中雪，5.0-9.9毫米为大雪，10.0-19.9毫米为暴雪。
据此可以推测大连金州地区的这场“瑞雪”应该属于
A. 小雪
B. 中雪
C. 大雪
D. 暴雪
12．受消费者绿色消费观和政府开征资源税的影响，高能耗产品的需求曲线（D）和供给曲线（S）一般会发生变动。
不考虑其他因素，图中能正确反映这种变动的图形有。