广东省六校广州二中深圳实验珠海一中中山纪念东莞中学惠州一中2018届高三下学期第三次联考文科综合地理

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【高三数学试题精选】2018年2月惠州一中、珠海一中等六校联考高三数学(理)试题及答案

2018年2月惠州一中、珠海一中等六校联考高三数学（理）
试题及答案
5 2018届第三次六校联考
高三数学（理科）试题 2018 28
命题人田立新张和发
本试卷共4页，21小题，满分150分．考试用时120分钟．
参考式锥体体积式，其中为锥体的底面积，为锥体的高．
第Ⅰ 卷
一．选择题本大题共8小题，每小题5分，共40分．在每小题给出的四个选项中，只有一项是符合题目要求的．
1．已知是非空集合，命题甲，命题乙，那么（）
A甲是乙的充分不必要条 B 甲是乙的必要不充分条
c甲是乙的充要条 D 甲是乙的既不充分也不必要条
2复数（）
A B c D
3已知点在由不等式组确定的平面区域内，则所在平面区域的面积是（）
A．1B．2c．4D．8
4等差数列{a n}中，已知，，，则为（）
A 13
B 14 c 15 D 16
5 函数的图像（）
A．关于原点对称 B 关于主线对称
c 关于轴对称 D 关于直线对称
6若某空间几何体的三视图如图所示，则该几何体的体积是（）
A B
c D
7已知平面，直线，点A，有下面四个命题。

广东省东莞中学广州二中惠州一中深圳实验珠海一中中山纪念中学高三第三次六校联考语文答案

语文参考答案1. B【解析】B选项出自材料第二段，原文指出，随着现场印象的减弱，本人所作些添枝加叶的处理，并不是凭想象去描绘，而是对它进行改编。

选项则强调“作些添枝加叶的想象处理”，故错。

2. B【解析】A第二段“绝大多数事实似乎都在某种程度上经过了有意加工”，“有意加工”主要由知情者完成，当事人参与在发生的事件中，故错。

C第六段具体谈了两种生活哲学：一种强调世界应按照某种法则运行，一种强调世界运行自有规则。

C项所引判断句，实际是第二种生活哲学的价值表现，故错。

D第七段“而且几乎总是愚蠢地试图阻止别人发现未经他们认可的事物”，相比较，选项表达更绝对，与原文意不符，故错。

3. C【解析】C项《桃花源记》是以虚构的形式构建了桃花源这样一个富庶、和谐、美好的大同社会，不适合论证本文以“成见”为话题的观点。

4. 作者引述哥廷根心理学会议观察实验，旨在表达什么观点，请结合文章简要作答。

(4分)【答案】①一篇报道是当事人和知情者的共同产物，旁观者会选择性地创造报道内容。

(角度：报道内容的创造)②即便专业老练旁观者，面对刚发生在眼前一事件，也很难做到客观真实地报道，而会加入个人的改编。

(角度：旁观者的改编报道)③面对突发的陌生场面，人们的观察会陷入一种庞杂喧嚣的混乱状态，进而影响报道的真实性。

(角度：陌生场面与报道真实性) (每点2分，答对任意两点，给满分。

)考查题型：文本信息的筛选与整合答题原则：答案就在原文中找答题思路：筛选答题区域——抓住核心语句——归纳整合答案5. 本文以人们对世界的见解切入，逐次引申到核心话题“成见”。

讨论成见问题时，作者采用了哪些论证方法来说明自己观点?请根据文本分析。

(6分)【答案】①举例论证，第四段论证成见发生必然性时，以现代生活匆忙的现象事例予以佐证；第五段论证先入之见对感知过程的强烈影响时，使用了“他”的具体身份的事例论证。

(举文中一例证便可得2分)②假设论证，第六段以“如果”假设“世界按照法则”的哲学样板，论证具体的描绘世界方法。

广东省六校(珠海一中,东莞中学,惠州一中)2018届高三下学期第三次联考文科综合历史试题+Word版含解析

广东省六校（广州二中，深圳实验，珠海一中，中山纪念，东莞中学，惠州一中）2018届高三下学期第三次联考文科综合历史试题1. 《左传》记载，公元前516年，齐景公问政于晏婴。

晏婴献策回答：“唯礼可以已之”，若行礼制则“民不迁，农不移，工贾不变，士不滥，官不滔，大夫不收公利”。

这表明先秦的“礼”是A. 治国安邦的重要措施B. 以人为本的民本思想C. 维护宗法分封的工具D. 强化等级秩序的手段【答案】A【解析】材料“若行礼制则民不迁，农不移，工贾不变，士不滥，官不滔”反映了礼制有利于稳定社会、治国安邦，故A正确；材料无法体现以人为本的民本思想，故B错误；材料未涉及维护宗法分封的问题，故C错误；材料也没有反映强化等级秩序，故D错误。

故选A。

点睛：本题解题的关键是紧扣材料关键信息“行礼制则民不迁，农不移，工贾不变，士不滥，官不滔”，学生应该结合所学知识从礼制与治国安邦的关系出发，即可排除无关选项，得出正确答案。

2. 下表反映了秦汉两朝不同时期对地方监察官的设立情况据此能够认定的历史事实是A. 秦汉时丞相负有地方监察职责B. 西汉时地方监察官的职权广泛C. 秦汉时对地方官吏的管理加强D. 秦汉时监察官官职高于地方官【答案】C【解析】表中四段材料并不能说明秦汉时丞相负有地方监察职责，故A错误；“遣御史监三辅郡……刺史，掌奉诏条察州”也不能说明西汉时地方监察官的职权广泛，故B错误；四段材料都反映了秦汉时派官对地方监察，说明对地方官吏的管理加强，故C正确；材料也不能表明秦汉时监察官官职高于地方官，故D错误。

故选C。

点睛：本题解题的关键是仔细观察表格内容，注意结合所学知识找出四段材料的共同信息，排除表述过于片面的或史实错误的选项，即可从“地方官吏的管理加强”的角度得出正确答案。

3. 唐宋很多皇帝各种宗教都提倡。

如唐玄宗亲自对《孝经》、《金刚经》和《道德经》三部书进行注释，并将注本颁行天下；南宋孝宗的《三教论》说：“以佛修心，以道养生，以儒治世”。

广东省六校(广州二中,深圳实验,珠海一中,中山纪念,东莞中学)高三联考(10月份)数学(理)含解析

2018届高三六校第一次联考理科数学一、选择题（本大题12小题，每小题满分5分，公共60分）1. 已知集合）．C. D.【答案】A2. 欧拉公式的定义域扩大到复数，建立了三角函数和指数函数的关系，它的复变函数论里占有非常重要（）．A. 第一象限B. 第二象限C. 第三象限D. 第四象限【答案】BB。

3. ）．B. C. D.【答案】BB．考点：向量的模．4. ）．【答案】C【解析】第1次判断后S=1，k=1，第2次判断后S=2，k=2，第3次判断后S=8，k=3，第4次判断后3<3，不满足判断框的条件，结束循环，输出结果：8.故选C.视频5. ）．A. B. C. D.【答案】D【解析】函数为偶函数，故排除B.时，，函数单调递减，当 D.6. 下列选项中，说法正确的是（）．A.B.C.D. 已知函数内至少有一个零点”的逆命题为假命题【答案】D7. ，为异面直线，，为平面，，．直线，，，（）．【答案】D【解析】;过点O,D.8. ）．C. D.【答案】D【解析】解：由约束条件作出可行域如图，联立，解得A（2，4），化目标函数z=3x﹣y为y=3x﹣z，A时可知取得最值，代入得2．点睛：画出可行域，将目标函数化成截距式，截距越小，目标函数值越大．9. 某公司为激励创新，计划逐年加大研发奖金投入，年全年投入研发奖金元，在此基础上，则该公司全年投入的研发奖金开始）．．C. D.【答案】B【解析】试题分析：设从2015年开始第200万元，两边取常用对数得2019年开始，该公司全年投入的研发资金开始超过200万元，故选B.【考点】增长率问题，常用对数的应用【名师点睛】本题考查等比数列的实际应用．在实际问题中平均增长率问题可以看作等比数列的应用，解题时要注意把哪个数作为数列的首项，然后根据等比数列的通项公式写出通项，列出不等式或方程就可求解．视频10. 已知函数）．的最大值为【答案】D．对称，故，令时，，时，，所以时，，即的最大值为对称，，．即11. ）．D.【答案】A︙即，．故选．12. 已知函数）．C. D.【答案】A【解析】令t=f(x),F(x)=0，则f(t)−2t−，分别作出y=f(x)和直线y=2x由图象可得有两个交点,横坐标设为t1,t2，则t1=0,1<t2<2，即有f(x)=0有一根；1<f(x)<2时,t2=f(x)有3个不等实根，综上可得F(x)=0的实根个数为4，即函数F(x)=f[f(x)]−2f(x)− 4.本题选择A选项.二、填空题（本大题4小题，每小题满分5分，共20分）13. _____________．【答案】180的二项展开式中，14. 已知直线_____________．相交，计算得出．直线的距离是解题的关键．15. 处的切线平行于直线__________．点处切线的斜率为，代入可得．16. ，其中，的概率为则称这次试验成功，若成功一次得分，失败一次得___________．【解析】启动一次出现数字为A=10101的概率由题意知变量符合二项分布，根据成功概率和实验的次数的值，有∴η的数学方差为．设得分为点睛:认识到实验次数是符合二项分布,分数和次数满足一定的关系三、解答题（共70分）17.【答案】【解析】试题分析：（1）设,通过，求解即可．（2）在中，由正弦定理可得，，转化求解即可.试题解析;在中，由正弦定理可得：因为.18. 如图，已知四棱锥【答案】(1)见解析；（2【解析】本试题主要考查了面面垂直和二面角的求解的综合运用。

2018届广东省高三六校(广州二中深圳实验珠海一中中山纪念东莞中学惠州一中)第三次文科联考

绝密★启用前2018届广东省六校第三次联考文科数学注意事项：1．答题前，考生务必将自己的姓名、准考证号、座位号、学校、班级等考生信息填写在答题卡上。

2．作答选择题时，选出每个小题答案后，用2B 铅笔把答题卡上对应题目的答案信息点涂黑。

如需改动，用橡皮擦干净后，再选涂其它答案，写在本试卷上无效。

3．非选择题必须用黑色字迹签字笔作答，答案必须写在答题卡各题指定的位置上。

4．考试结束后，将本试卷和答题卡一并交回。

一、选择题：本题共12小题，每小题5分，共60分. 在每题给出的四个选项中，只有一项符合题目要求. 1.函数()ln(1)f x x =++的定义域为（） A ．(2,)+∞ B ．(1,2)(2,)-+∞ C ．(1,2)- D ．(]1,2-2.如果复数ibi212+-(其中i 为虚数单位，b 为实数)的实部和虚部互为相反数，那么b 等于( ) A ．6- B ．32 C ．32- D ．23.高考结束后，同学聚会上，某同学从《爱你一万年》，《非你莫属》，《两只老虎》，《单身情歌》四首歌中选出两首歌进行表演，则《爱你一万年》未选取的概率为（）A ．13B ．12 C ．23 D ．564.圆22(2)4x y -+=关于直线y x =对称的圆的方程是（）A ．22((1)4x y +-=B ．22((4x y +=C ．22(2)4x y +-=D ．22(1)(4x y -+=5．某几何体的三视图如图所示，且该几何体的体积是3，则正视图中的x 的值是( )A ．2 B.29 C. 23D ．3 6.已知sin()3cos()sin()2πθπθθ++-=-，则2sin cos cos θθθ+=（）A ．15B ．25C ．35D7.实数x 、y 满足000x y x y c ≤⎧⎪≤⎨⎪+-≥⎩，且x y -的最大值不小于1，则实数c 的取值范围是( )A ．1c ≤-B ．1c ≥- C．c ≤．c ≥8.函数x x x f cos )(=的导函数)(x f '在区间],[ππ-上的图像大致是（）A. B. C. D.9.三棱锥ABC P -中，ABC PA 平面⊥且2=PA ，ABC ∆是边长为3的等边三角形，则该三棱锥外接球的表面积为( )A.34πB ．π4C ．π8D ．π20 10.自主招生联盟成行于2009年清华大学等五校联考，主要包括“北约”联盟，“华约”联盟，“卓越”联盟和“京派”联盟．在调查某高中学校高三学生自主招生报考的情况，得到如下结果：①报考“北约”联盟的学生，都没报考“华约”联盟②报考“华约”联盟的学生，也报考了“京派”联盟③报考“卓越”联盟的学生，都没报考“京派”联盟④不报考“卓越”联盟的学生，就报考“华约”联盟根据上述调查结果，下列结论错误的是（）A ．没有同时报考“华约” 和“卓越”联盟的学生B ．报考“华约”和“京派”联盟的考生一样多C ．报考“北约” 联盟的考生也报考了“卓越”联盟D ．报考“京派” 联盟的考生也报考了“北约”联盟 11.设120172016,log log a b c ===，则,,a b c 的大小关系为（）A ．a b c >>B ．a c b >> C. b a c >> D ．c b a >>12. 已知双曲线E ： 22x a ﹣22y b =1（0,0>>b a ），点F 为E 的左焦点，点P 为E 上位于第一象限内的点，P 关于原点的对称点为Q ，且满足FQ 3PF =，若b =OP ，则E 的离心率为（）A.二．填空题：本题共4小题，每小题5分。

广东省六校(广州二中,深圳实验等)2018届高三下学期第三次联考语文试题

广东六校联盟2018届高三第三次联考语文阅读下面的文字，完成下列小题。

人们的生活处于不停的变动之中，文化也随之而不断变化和发展。

不同文化的交流与碰撞带来文化的融合与冲突，历史学家汤因比发现这是人类文明兴衰的一个重要机制。

这一过程的结果是，文化自信随着社会生活的变迁而变化。

在生产力发展的驱动下，现代资本主义生产方式深刻改变了西方世界的经济社会结构，进而引发了文化的剧烈变革。

资本主义国家由于不断扩大市场的内在需求而推动了全球化进程，带来不同文化之间的激烈碰撞。

马克思、恩格斯观察到:“资产阶级，由于一切生产工具的迅速改进，由于交通的极其便利，把一切民族甚至最野蛮的民族都卷到文明中来了。

它的商品的低廉价格，是它用来摧毁一切万里长城、征服野蛮人最顽强的仇外心理的重炮。

它迫使一切民族在自己那里推行所谓的文明，即变成资产者。

”这种社会生产方式的变革推动了世界各国的文化震荡，引发了普遍的文化危机，人们在新的世界格局下如何重建自己的文化自信成为普遍问题。

文化认同危机冲击、瓦解了传统的文化自信，引发了人们对既有文化的反省性认识，在文化批判中形成了文化自信的发展机制。

一方面，作为社会意识的文化弥散于人们的日常生活和社会心理中，具有天然的传承性和保守性，由此也形成了走向僵化的可能性。

另一方面，文化也具有一种自我发展的潜能，作为一种能动的因素，它通过新思想的引入而吹响变革的号角，从而成为克服僵化机制进而维系社会系统活力的积极力量。

文化批判意味着以批判性的立场认识和对待自己，不是盲目地肯定或否定，而是在理性地反思与省察之上客观地予以认识和对待，它的对立面不是对象本身而是拒绝理性的思想方法，克服这种思想方法正是启蒙理性的要求。

康德将启蒙理解为脱离人加之于自己的“不成熟状态”。

所以，批判精神乃是实现精神成长的真实表现。

对于一个民族而言，这意味着文化的成熟，表现出该文化的理性自觉和现代意蕴。

可见，人类文化随着社会生活的变迁而发展，现代文化更是在现代性各种因素的驱动下处于不停的变动之中，由此形成了文化自信生成与发展的辩证逻辑。

2018届广东省六校广州二中深圳实验珠海一中中山纪念东莞中学惠州一中高三下学期第三次联考理科综合化学试题

广东省六校（广州二中，深圳实验，珠海一中，中山纪念，东莞中学，惠州一中）2018届高三下学期第三次联考理科综合化学试题1. 化学与人类的生活、生产息息相关，下列说法不正确的是A. “地沟油”禁止食用，但可以用来制肥皂或燃油B. BaCO3在医学上可用作“钡餐”C. 光导纤维的主要成分是SiO2，太阳能电池使用的材料是单质硅D. 臭氧、醋酸、双氧水都能杀菌消毒【答案】B【解析】A．“地沟油”中主要含油脂，还含有害物质，不能食用，但可用来制肥皂(碱性条件下水解)或燃油(油脂能燃烧)，故A正确；B．可作钡餐的是硫酸钡，不是碳酸钡，BaCO3能够溶于盐酸，钡离子能使蛋白质发生变性，故B错误；C．二氧化硅对光具有良好的全反射作用，Si为常见的半导体材料，则光导纤维的主要成分是SiO2，太阳能电池使用的材料是单质硅，故C正确；D．醋酸使蛋白质发生变性，作消毒剂，而臭氧、双氧水都利用强氧化性杀菌消毒，故D正确；故选B。

2. 对于下图所示实验，下列实验现象预测或操作正确的是A. 实验甲：匀速逐滴滴加盐酸时，试管中没气泡产生和有气泡产生的时间段相同B. 实验乙：充分振荡后静置，下层溶液为橙红色，上层为无色C. 实验丙：由MgCl2•6H2O制备无水MgCl2D. 装置丁：酸性KMnO4溶液中有气泡出现，且溶液颜色会逐渐变浅乃至褪去【答案】D【解析】A．先发生碳酸钠与盐酸的反应生成碳酸氢钠，则开始没有气泡，然后有气泡，但反应时间前短后长，故A错误；B．四氯化碳的密度比水的大，充分振荡后静置，下层溶液为橙红色，上层为氯化铁溶液，为黄色，故B错误；C．由MgCl2•6H2O制备无水MgCl2，需要在氯化氢氛围中进行，故C错误；D．浓硫酸具有脱水性，蔗糖变为C，然后与浓硫酸反应生成二氧化硫，具有还原性，使酸性KMnO4溶液褪色，观察到性KMnO4溶液中有气泡出现，且溶液颜色会逐渐变浅乃至褪去，故D正确；故选D。

点睛：本题考查实验方案的评价，涉及到反应的先后顺序、萃取、蒸发等知识点。

高三数学-【数学】广东六校2018届高三2018月联考(文) 精品

2018届六校（惠州一中、珠海一中、东莞中学、中山纪念中学、深圳实验中学、广州二中）高三联合考试试卷（文）命题：广州二中 2018.12.23本试卷分选择题和非选择题两部分，共4页，满分为150分。

考试用时120分钟。

注意事项：1、答卷前，考生务必用黑色字迹的钢笔或签字笔将自己的姓名和学号填写在答题卡和答卷密封线内相应的位置上，用2B 铅笔将自己的学号填涂在答题卡上。

2、选择题每小题选出答案后，用2B 铅笔把答题卡上对应题目的答案标号涂黑；如需改动，用橡皮擦干净后，再选涂其他答案；不能答在试卷上。

3、非选择题必须用黑色字迹的钢笔或签字笔在答卷纸上作答，答案必须写在答卷纸各题目指定区域内的相应位置上，超出指定区域的答案无效；如需改动，先划掉原来的答案，然后再写上新的答案；不准使用铅笔和涂改液。

不按以上要求作答的答案无效。

4、考生必须保持答题卡的整洁和平整。

一、选择题:(每小题5分，共50分)1．若A=04|{2<-x x x }，B={0，1，2，3}，则AB =A ． {0，1，2，3} B.{1，2，3} C.{1，2，3，4} D. {0，1，2，3，4} 2. 已知平面向量(3,1),(,3)a b x ==-，且a b ⊥，则x = A ．3-B.1-C.1D. 33. 等比数列}{n a 中,已知4,242==a a ,则=6aA. 6B. 8C. 10D. 16 4. 下列函数中，既是偶函数又在()0,+∞上单调递增的是 A. 3y x = B. cos y x = C. x y tan = D . ln y x = 5.在ABC ∆中，a=15,b=10,A=60°，则B sin = A.33 B. 33±C. D. 36± 6、已知椭圆的长轴长是短轴长的3倍，则椭圆的离心率等于（）． A ．31 B ．32 C ．322 D ．310 7. 已知2z x y =-，式中变量x ，y 满足约束条件,1,2,y x x y x ≤⎧⎪+≥⎨⎪≤⎩，则z 的最大值为___________.A. 0B.5C.6D. 108．为了了解某地区学生的身体情况，抽查了该地区100名年龄为高三男生体重（kg ），得到频率分布直方图如下图，根据上图可得这100名学生中体重在［56.5，64.5］的学生人数是（） A ．20 B ．30C ．40D ．509. 方程 03log 3=-+x x 的解所在的区间是（）A ．（0,1） B. (1,2) C.(2,3) D. (3,4) 10、已知过点（1，2）的二次函数c bx ax y ++=2的图象如右图，给出下列论断：①0>abc ，②0<+-c b a ,③1<b ， ④21>a 其中正确论断是（） A ． ①③ B. ②④ C. ②③ D. ②③④二、填空题：（每小题5分，共30分，把正确答案填写在答卷相应地方上）11. 已知}{n a 是等差数列，12,3432=+=a a a ，则}{n a 的前n 项和n S =______12. 图中的三个直角三角形是一个体积为320cm的几何体的三视图，则h=_________cm13. 如下图所示，程序框图（算法流程图）的输出值x =________。

2018年高三最新广东省六校2018届高三第三次联考数学试题(理科) 精品

广东省六校2018届高三第三次联考东莞中学中山纪念中学珠海一中广州二中深圳实验中学惠州一中数学（理科）试卷本试卷共4页，21小题，满分150分．考试用时120分钟．注意事项：1．选择题每小题选出答案后，用2B 铅笔把答题卡上对应题目选项的答案信息点涂黑，如需改动，用橡皮擦干净后，再选涂其他答案，答案不能答在试卷上．2．非选择题必须用黑色字迹钢笔或签字笔作答，答案必须写在答题卡各题目指定区域内相应位置上；如需改动，先划掉原来的答案，然后再写上新的答案；不准使用铅笔和涂改液．不按以上要求作答的答案无效．一、选择题：本大题共8小题，每小题5分，满分40分．在每小题给出的四个选项中，只有一项是符合题目要求的．1．已知集合{}2,1,0=M ，{}M a a x x N ∈==,2，则集合=N M A ．}0{B ．}1,0{C ．}2,1{D ．}2,0{2．设a 是实数，且211i i a +++是实数，则=a A ．21B ．1C ．23D ．23．已知函数)sin(2)(ϕω+=x x f （其中0>ω，2πϕ<）的最小正周期是π，且3)0(=f ，则 A ．21=ω，6πϕ= B ．21=ω，3πϕ=C ．2=ω，6πϕ=D ．2=ω，3πϕ=4．下列四个命题中，真命题的个数为（1）如果两个平面有三个公共点，那么这两个平面重合；（2）两条直线可以确定一个平面；（3）若α∈M ，β∈M ，l =⋂βα，则l M ∈；（4）空间中，相交于同一点的三直线在同一平面内． A ．1B ．2C ．3D ．45．已知⎩⎨⎧>+-≤=0,1)1(0,cos )(x x f x x x f π，则)34()34(-+f f 的值为A ．2-B ．1-C ．1D ．26．设)('x f 是函数)(x f 的导函数，将)(x f y =和)('x f y =的图像画在同一个直角坐标系中，不可能正确的是A ．B ．C ．D ．7．设1e ，2e 分别为具有公共焦点1F 与2F 的椭圆和双曲线的离心率，P 为两曲线的一个公共点，且满足021=⋅PF PF ，则2212221)(e e e e +的值为 A ．21 B ．1 C ．2 D ．不确定8．已知1)1,1(=f ，*),(N n m f ∈（m 、*)N n ∈，且对任意m 、*N n ∈都有： ①2),()1,(+=+n m f n m f ；②)1,(2)1,1(m f m f =+．给出以下三个结论：（1）9)5,1(=f ；（2）16)1,5(=f ；（3）26)6,5(=f ．其中正确的个数为 A ．3 B ．2 C ．1 D ．0二、填空题：本大题共7小题，每小题5分，满分30分．其中13～15题是选做题，考生只能选做二题，三题全答的，只计算前两题得分．9．圆心为)1,1(且与直线4=+y x 相切的圆的方程是_______________． 10．向量、3=5=7=-，则、的夹角为________． 11．若把英语单词“good ”的字母顺序写错了，则可能出现的错误共有_______种． 12．如右图，一个空间几何体的主视图、左视图是周长为4一个内角为060的菱形，俯视图是圆及其圆心，那么这个几何体的表面积为________．13．（坐标系与参数方程选做题）极坐标系下，直线2)4cos(=-πθρ 与圆2=ρ的公共点个数是________．俯视图左视图主视图EDCBAPB14．（不等式选讲选做题）x 、0>y ，1=+y x ，则)1)(1(yy x x ++的最小值为______． 15．（几何证明选讲选做题）如图所示，等腰三角形ABC 的底边AC 长为6 , 其外接圆的半径长为5, 则三角形ABC 的面积是________．三、解答题：本大题共6小题，满分80分．解答须写出文字说明、证明过程和演算步骤． 16．（本小题满分12分）设集合{}42<=x x A ，⎭⎬⎫⎩⎨⎧+<=341x x B ．（1）求集合B A ；（2）若不等式022<++b ax x 的解集为B ，求a ，b 的值．17．（本小题满分12分）已知函数x x x f 2sin 21)12(cos )(2++=π．（1）求)(x f 的最值；（2）求)(x f 的单调增区间．18．（本小题满分14分）如图，四棱锥ABCD P -中，⊥PA 底面ABCD ，AD AB ⊥，CD AC ⊥，︒=∠60ABC ，BC AB PA ==，E 是PC 的中点．（1）求证：AE CD ⊥；（2）求证：⊥PD 面ABE ；（3）求二面角C PD A --的平面角的正弦值．19．（本小题满分14分）已知抛物线2:ax y C =（a 为非零常数）的焦点为F ，点P 为抛物线C 上一个动点，过点P 且与抛物线C 相切的直线记为L ．（1）求F 的坐标；（2）当点P 在何处时，点F 到直线L 的距离最小？20．（本小题满分14分）数列{}n a 是以a 为首项，q 为公比的等比数列．令n n a a a b ----= 211，n n b b b c ----= 212，*N n ∈．（1）试用a 、q 表示n b 和n c ；（2）若0<a ，0>q 且1≠q ，试比较n c 与1+n c 的大小；（3）是否存在实数对),(q a ，其中1≠q ，使{}n c 成等比数列．若存在，求出实数对),(q a 和{}n c ；若不存在，请说明理由．21．（本小题满分14分）设函数x b x x f ln )1()(2+-=，其中b 为常数．（1）当21>b 时，判断函数()f x 在定义域上的单调性；（2）若函数()f x 的有极值点，求b 的取值范围及()f x 的极值点；（3）求证对任意不小于3的正整数n ，不等式n n n n1ln )1ln(12<-+<都成立．广东省六校2018届高三第三次联考东莞中学中山纪念中学珠海一中广州二中深圳实验中学惠州一中数学（理科）试卷参考答案一、选择题：本大题共8小题，每小题5分，满分40分．在每小题给出的四个选项中，只有一项是符合题目要求的． 1．D2．B3．D4．A5．C6．D7．C8．A二、填空题：本大题共7小题，每小题5分，满分30分．其中13～15题是选做题，考生只能选做二题，三题全答的，只计算前两题得分． 9．2)1()1(22=-+-y x 10．︒120（或π32） 11．11 12．π13．114．425 15．3三、解答题：本大题共6小题，满分80分．解答须写出文字说明、证明过程和演算步骤． 16．（本小题满分12分）解：{}{}2242<<-=<=x x x x A ，……………………………………………… 3分{}13031341<<-=⎭⎬⎫⎩⎨⎧<+-=⎭⎬⎫⎩⎨⎧+<=x x x x x x x B ，……………………… 3分（1）{}12<<-=∴x x B A ；……………………………………………………. 2分（2）因为022<++b ax x 的解集为{}13<<-=x x B ，所以13和-为022=++b ax x 的两根，……………………………………… 2分故⎪⎪⎩⎪⎪⎨⎧⨯-=+-=-132132b a，所以4=a ，6-=b ．……………………………………. 2分17．（本小题满分12分）解： x x x f 2sin 21)]62cos(1[21)(+++=π………………………………………… 2分 ]2sin )6sin 2sin 6cos 2(cos 1[21x x x +-+=ππ)2sin 212cos 231(21x x ++=………………………………………… 2分 21)32sin(21++=πx ……………………………………………………. 2分（1）)(x f 的最大值为1、最小值为0；……………………………………………… 2分（2）)(x f 单调增，故]22,22[32πππππ+-∈+k k x ，…………………………… 2分即)](12,125[Z k k k x ∈+-∈ππππ，从而)(x f 的单调增区间为)](12,125[Z k k k ∈+-ππππ．…………………… 2分18．（本小题满分14分）（1）证明：⊥PA 底面ABCD ，PA CD ⊥∴又AC CD ⊥，A AC PA =⋂，故⊥CD 面PAC⊆AE 面PAC ，故AE CD ⊥………………………………………………… 4分（2）证明：BC AB PA ==，︒=∠60ABC ，故AC PA =E 是PC 的中点，故PC AE ⊥由（1）知AE CD ⊥，从而⊥AE 面PCD ，故PD AE ⊥易知PD BA ⊥，故⊥PD 面ABE ……………………………………………… 5分（3）过点A 作PD AF ⊥，垂足为F ，连结EF ．由（2）知，⊥AE 面PCD ，故AFE ∠是二面角C PD A --的一个平面角．设a AC =，则a AE 22=，a AD 32=，a PD 37= 从而a PD AD PA AF 72=⋅=，故414sin ==∠AF AE AFE ．……………… 5分说明：如学生用向量法解题，则建立坐标系给2分，写出相关点的坐标给2分，第（1）问正确给2分，第（2）问正确给4分，第（3）问正确给4分。

广东省六校珠海一中中山纪念中学等2018届高三下学期第三次联考英语试题及答案

2018届高三“六校联盟”第三次联考英语命题学校：珠海一中试卷共10页，卷面满分120分，折算成135分计入总分。

考试用时120分钟。

注意事项：1.答题前，先将自己的班级、姓名、试室号、座位号和考号填写在答题卡上。

2.选择题的作答：每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑。

写在试题卷、草稿纸和答题卡的非答题区域均无效。

3.非选择题的作答：用黑色签字笔直接答在答题卡上对应的答题区域内。

写在试题卷、草稿纸和答题卡的非答题区域均无效。

4.考试结束后，请将答题卡上交。

第一部分阅读理解（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，从短文后每题所给的A、B、C和D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。

AQuestioning the existence of aliens is something that scientists have done for decades. In fact, most people do believe that aliens exist in some fashion. The main necessities for life are water and some form of energy source. Not surprisingly, there are some planets, exoplanets and moons that fit the bill. Here are several best chances at finding life in the universe.◆TRAPPIST-1TRAPPIST-1 is a planetary system a few dozen light-years away, whose discovery was announced in early 2017. This system consists of seven Earth-like exoplanets orbiting an "ultra-cool" star, and it is one of our shots at finding possible life beyond our own solar system.◆TitanTitan is the largest moon of Saturn, the sixth planet from our Sun. This moon could potentially harbor life but possibly not in the sense that we think. Titan does not exactly fit the description of being in a typical habitable zone.Titan has water, and it has liquid. It just doesn't have liquid water. The water on this moon is completely solid because of the extremely cold temperature.◆EuropaEuropa is one of Jupiter's moons here in our own solar system. It is another candidate due to its potential to hold liquid water. Europa is thought to have all the necessities for life including water, energy sources, and the right chemical build-up.◆MarsThe Red Planet, the fourth from the Sun, is probably one of the most talked-about potential candidates for extraterrestrial(地球外的) life and even for human colonization. Despite some different voices, finding extraterrestrial life on Mars really is a serious possibility.We know by now that we won't find little green men or any intelligent form of life thatwe understand. However, there is evidence that there was and may still be microscopic life on the small red planet.1. The common point of these celestial bodies is that _______.A. solid water exists on them respectivelyB. life might exist on each of themC. they all contain liquid waterD. each of them has living things on it2. Which celestialbody could have life different from human imagination?A. TRAPPIST-1.B. Titan.C. Europa.D. Mars.3. Which of the following statements is TRUE?A. Europa is the most talked-about potential candidate for extraterrestrial life.B. TRAPPIST-1 is the only body that contains life beyond the solar system.C. All the scientists do believe that aliens exist in some manner.D. There is proof that life existed on the celestial body Mars.BAbout a month after I joined Facebook, I got a call from Lori Goler, a highly regardedsenior director of marketing at eBay. She made it clear this was a business call. “I want toapply to work with you at Facebook,” she said. “Instead of recommending myself, I wan ask you: What is your biggest problem, and how can I solve it?”My jaw hit the floor. I had hired thousands of people over the previous decade and no onehad ever said anything remotely like that. People usually focus on finding the right role for themselves, with the implication that their skills will help the company. Lori put Facebookneeds front and center. It was a killer approach. I responded, “Recruiting i s my biggest problem. And, yes, you can solve it.”Lori never dreamed she would work in recruiting, but she jumped in. She even agreed totrade earnings for acquiring new skills in a new field. Lori did a great job running recruitingand within months was promoted to her current job, leading People@Facebook.The most common metaphor for careers is a ladder, but this concept no longer applies tomost workers. As of 2010, the average American had eleven jobs from the ages of eighteen toforty-six alone. Lori often quotes Pattie Sellers, who came up with a much better metaphor: “Careers are a jungle gym, not a ladder.”As Lori describes it, there’s only one way to get to the top of a ladder, but there are man ways to get to the top of a jungle gym. The jungle gym model benefits everyone, but especially women who might be starting careers, switching careers, getting blocked byexternal barriers, or reentering the workforce after taking time off. The ability to create aunique path with occasional dips, detours (弯路), and even dead ends presents great views ofmany people, not just those at the top. On a ladder, most climbers are stuck staring at the buttof the person above.4. Why did Lori make the call?A.She helped Facebook to solve the biggest problem.B.She wanted to make a business deal with Facebook.C.She tried to ask for a pay rise in Facebook.D.She wanted to become an employee in Facebook.5.What impressed “I” by Lori?A.Lori was good at running recruiting.。

广东省六校2018届高三下学期第三次联考数学(理)试卷(含答案)

绝密★启用前2018届广东省六校第三次联考理科数学满分：150分考试时间：120分钟命题学校：深圳实验学校命题人：魏英城审题人：喻秋生注意事项：1．答卷前，考生务必将自己的姓名、考生号、考场号和座位号填写在答题卡上．用2B 铅笔将试卷类型（B ）填涂在答题卡相应位置上。

将条形码横贴在答题卡右上角“条形码粘贴处”． 2．作答选择题时，选出每小题答案后，用2B 铅笔在答题卡上对应题目选项的答案信息点涂黑；如需要改动，用橡皮擦干净后，再选涂其他答案．答案不能答在试卷上．3．非选择题必须用黑色字迹的钢笔或签字笔作答，答案必须写在答题卡各题目指定区域内相应位置上；如需改动，先划掉原来的答案，然后再写上新答案；不准使用铅笔和涂改液．不按以上要求作答无效．4．考生必须保证答题卡的整洁．考试结束后，将试卷和答题卡一并交回．一、选择题：本题共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．已知集合{(,)|,M x y x y =为实数，且222}x y +=，{(,)|,N x y x y =为实数，且2}x y +=，则M N I 的元素个数为A ．0B ．1C ．2D ．3 2．设等差数列{}n a 的前n 项和为n S ，若39S =，530S =，则789a a a ++=A ．63B ．45C ．36D ．273．若变量,x y 满足约束条件0210430y x y x y ≤⎧⎪--≥⎨⎪--≤⎩，则35z x y =+的取值范围是A ．[)3,+∞B ．[]8,3-C ．(],9-∞D ．[]8,9-4．函数1ln sin 1ln xy x x-=⋅+的部分图象大致为A ．B ．C ．D ．5．设函数 ()3)f x x ϕ=+，其中常数ϕ满足0πϕ-<<．若函数()()()g x f x f x '=+（其中()f x ' 是函数()f x 的导数）是偶函数，则ϕ等于 A ．3π- B ．56π- C ．6π-D ．23π- 6．执行右面的程序框图，如果输入的a ，b ，k 分别为1，2，3，输出的158M =，那么，判断框中应填入的条件为A ．n k <B ．n k ≥C ．1n k <+D ．1n k ≤+7．已知02012(1i)(2i)(2i)(2i)n n b b b -+=-++-++-++L又数列{}n a 满足：当1n =时， 12a =-；当2n ≥，n a 为22(2i)b -+的虚部．若数列2{}na - 的前n 项和为n S ，则2018S =A ．20172018 B ．20182017 C ．40352018 D ．403320178．如图，在同一个平面内，三个单位向量OA u u u r ，OB uuu r ，OC u u u r满足条件：OA u u u r 与OC u u u r 的夹角为α，且tan α=7，OB uuu r 与OC u u u r与的夹角为45°．若OC mOA nOB =+u u u r u u u r u u u r（,m n R ∈），则m n +的值为否1n =输入,,a b k输出M 开始是1M a b=+a b = 结束1n n =+b M=A O C BαA ．3 BC． D．29．四面体ABC S -中，三组对棱的长分别相等，依次为5，4，x ，则x 的取值范围是A ．)41,2(B ．)9,3(C ．)41,3(D ．)9,2(10．从2个不同的红球、2个不同的黄球、2个不同的蓝球共六个球中任取2个，放入红、黄、蓝色的三个袋子中，每个袋子至多放入一个球，且球色与袋色不同，那么不同的放法有 A ．42种 B ．36种 C ．72种 D ．46种11．已知点F 为双曲线2222:1(,0)x y E a b a b-=>的右焦点，直线(0)y kx k =>与E 交于M ，N 两点，若MF NF ⊥，设MNF β∠=，且[,]126ππβ∈，则该双曲线的离心率的取值范围是A． B．1] C． D．1]12．已知()()2211,,y x B y x A 、是函数x x x f ln )(=与2)(xkx g =图象的两个不同的交点，则()21x x f +的取值范围是 A ．2ln ,2e e ⎛⎫+∞ ⎪⎝⎭ B ．⎪⎭⎫ ⎝⎛e e e 1,2ln 2 C ．⎪⎭⎫ ⎝⎛e 1,0 D ．⎪⎭⎫ ⎝⎛0,2ln 2e e二、填空题：本题共4小题，每小题5分，共20分． 13．已知函数()y f x =是定义在R 上的奇函数，则311[(2)]f x dx x-+=⎰__ ________． 14．已知函数()sin cos f x a x b x =-，若()()44f x f x ππ-=+，则函数13ax b y ++=恒过定点___ __．15．已知几何体的三视图如图所示，其中俯视图为一正方形，则该几何体的表面积为．16．若函数()f x 的图象上存在不同的两点11(,)A x y ，22(,)B x y ，其中1122,,,x y x y 使得1212x x y y +0，则称函数()f x 是“柯西函数”．给出下列函数：①()ln (03)f x x x =<<； ②1()(0)f x x x x=+>；③()f x = ④()f x .其中是“柯西函数”的为（填上所有．．正确答案的序号）三、解答题：共70分．解答应写出文字说明、证明过程或演算步骤．第1721题为必考题，每个试题考生都必须作答．第22、23题为选考题，考生根据要求作答．（一）必考题：共60分. 17.（12分）设数列{}n a 的前n 项和为n S ，数列{}n S 的前n 项和为n T ，满足2*2n n T S n n N =-∈，．（Ⅰ）求123,,a a a 的值；（Ⅱ）求数列{}n a 的通项公式．18.（12分）某小店每天以每份5元的价格从食品厂购进若干份食品，然后以每份10元的价格出售．如果当天卖不完，剩下的食品还可以每份1元的价格退回食品厂处理．（Ⅰ）若小店一天购进16份，求当天的利润y (单位：元)关于当天需求量n (单位：份，N n ∈)的函数解析式；（Ⅱ）小店记录了100天这种食品的日需求量(单位：份)，整理得下表：以100天记录的各需求量的频率作为各需求量发生的概率．（i ）小店一天购进16份这种食品，X 表示当天的利润（单位：元），求X 的分布列及数学期望；（ii ）以小店当天利润的期望值为决策依据，你认为一天应购进食品16份还是17份？19.（12分）如图，在四棱锥P ABCD -中，ABCD 是平行四边形，1AB BC ==，120BAD ∠=o，PB PC ==2PA =，E ，F 分别是AD ，PD的中点．（Ⅰ）证明：平面EFC ⊥平面PBC ；（Ⅱ）求二面角A BC P --的余弦值．20.（12分）已知椭圆2222:1(0)x y C a b a b+=>>的离心率为1A 、2A 分别为椭圆C 的左、右顶点，点(2,1)P -满足121PA PA ⋅=u u u r u u u u r．（Ⅰ）求椭圆C 的方程；（Ⅱ）设直线l 经过点P 且与C 交于不同的两点M 、N ，试问：在x 轴上是否存在点Q ，使得直线 QM 与直线QN 的斜率的和为定值？若存在，请求出点Q 的坐标及定值；若不存在，请说明理由．21.（12分）已知函数2()(1)e 2xa f x x x =--，其中a ∈R ．（Ⅰ）函数()f x 的图象能否与x 轴相切？若能，求出实数a ，若不能，请说明理由；（Ⅱ）求最大的整数a ，使得对任意12,(0,)x x ∈∈+∞R ，不等式12122()()2f x x f x x x +-->-恒成立．（二）选考题：共10分. 请考生在第22、23题中任选一题作答. 如果多做，则按所做的第一题计分. 22. [选修4-4：坐标系与参数方程]（10分）D CPABEF已知直线l 的参数方程为cos sin x m t y t αα=+⎧⎨=⎩(t 为参数，0)απ≤<，以坐标原点为极点，x 轴的正半轴为极轴建立极坐标系，曲线C 的极坐标方程为4cos ρθ=，射线()44ππθϕϕ=-<<，4πθϕ=+，4πθϕ=-分别与曲线C 交于A B C 、、三点(不包括极点O )．（Ⅰ）求证：OB OC OA +=；（Ⅱ）当12πϕ=时，若B C 、两点在直线l 上，求m 与α的值． 23. [选修4-5：不等式选讲]（10分）已知函数()222f x x a x a =+-+-．（Ⅰ）若()13<f ，求实数a 的取值范围；（Ⅱ）若不等式()2≥f x 恒成立，求实数a 的取值范围．2018届广东省六校第三次联考理科数学参考答案一、选择题：本大题共12小题，每小题5分．二填空题：本大题共4小题，每小题5分．13．；14．；15．；16．①④说明：本参考答案给出一种解法的评分标准，其它解法可参照本评分标准相应评分.三、解答题：共70分．17.（12分）解：（Ⅰ）∵，，∴. ……………1分∵，∴. …………………………………………………2分∵，∴. ……………………………………………4分（Ⅱ）∵…①，…②，∴①-②得，，∵，……………………6分∴…③，……………………………………………………8分…④，③-④得，，. ……………………………………………………………………10分∵，∴是首项3公比的等比数列，，故. ……………………………………………………………………12分18.（12分）解：（Ⅰ）当日需求量时，利润，…………………………1分当日需求量时，利润，…………………………2分所以关于的函数解析式为．……………………3分（Ⅱ）（i）可能的取值为62，71，80，………………………………………………4分并且，，．的分布列为：……………………………………………………7分的数学期望为元．……………………8分（ii）若小店一天购进17份食品，表示当天的利润(单位：元)，那么的分布列为的数学期望为元．………11分由以上的计算结果可以看出，，即购进17份食品时的平均利润大于购进16份时的平均利润．所以，小店应选择一天购进17份．………………………………12分19.（12分）解法一：（Ⅰ）取中点，连，∵，∴，∵是平行四边形，，，∴，∴是等边三角形，∴，∵，∴平面，∴. ………………………3分∵分别是的中点，∴∥，∥，∴，，∵，∴平面，…………………5分∵平面，∴平面平面. …………………………………………6分（Ⅱ）由（Ⅰ）知，，∴是二面角的平面角. …………………………………………………7分, ，，……………………………………………9分在中，根据余弦定理得，, ………11分∴二面角的余弦值为.…………………………………………………12分解法二：（Ⅰ）∵是平行四边形，，，∴，∴是等边三角形，∵是的中点，∴，∵∥，∴. ………………………………………………………………………………1分分别以，的方向为。

广东省东莞中学广州二中惠州一中深圳实验珠海一中中山纪念中学高三第三次六校联考化学

东莞中学、广州二中、惠州一中、深圳实验、珠海一中、中山纪念中学2024届高三第三次六校联考试题化学时间：75 分钟满分：100 分命题与审题：东莞中学高三化学备课组注意事项：1.答题前，考生务必用黑色字迹的钢笔或签字笔将自己的姓名和考生号、考场号、座位号填写在答题卡上，并用2B铅笔将对应的信息点涂黑，不按要求填涂的，答卷无效。

2.选择题每小题选出答案后，用2B铅笔把答题卡上对应题目选项的答案信息涂黑，如需改动，用橡皮擦干净后，再选涂其他答案，答案不能答在试卷上。

3.非选择题必须用黑色字迹钢笔或签字笔作答，答案必须写在答题卡各题目指定区域内相应位置上；如需改动，先划掉原来的答案，然后再写上新的答案，不准使用铅笔和涂改液。

不按以上要求作答的答案无效。

4.考生必须保持答题卡的整洁，考试结束后，只需将答题卡交回。

可能用到的相对原子质量: H1 C12 N14 O16 S32 Fe56 Cu64一、选择题:本题共16小题,共44分。

第1~10 小题, 每小题2分: 第 11~16 小题, 每小题4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. 中华文明源远流长，化学与文化传承密不可分。

下列物质主要由合金材料制成的是2. 化学是材料科学的基础。

下列说法不正确的是A. 制造 5G芯片的氮化铝晶圆是复合材料B. 用作棉被的大豆蛋白纤维是一种可降解材料C. 航天员用的塑料面窗是有机高分子材料D. 科学家在嫦娥5号月壤中发现的玻璃纤维是无机非金属材料3. 化学用语是学习化学的重要工具。

下列化学用语表述不正确的是A. 丙炔的键线式: ≡B. 中子数为20的氯原子：37ClC. CH₃的电子式为:D. 用原子轨道描述氢原子形成氢分子的过程：4. 劳动开创未来，奋斗成就梦想。

下列劳动项目与所涉及的化学知识没有关联的是选项劳动项目化学知识A交警检查酒驾检测仪中橙红色的K₃Cr₃O₃与乙醇反应变为蓝绿色的Cr³₃B理发师给客人烫发烫发药水能使头发中的二硫键(SS)发生断裂和重组C园丁给树干涂石灰水碱能使蛋白质变性D舞台师给舞台造“烟雾”缭绕CO₃与水反应可生成碳酸A. 放电时，电子从外电路进入M 电极B. 放电时, Cl₃由M 电极向N 电极移动C. 充电时，N 电极反应为Li₃Bi−3e⁻=3Li⁺+BiD. 可用 LiCl和 KCl水溶液代替熔融 LiCl和KCl6. 某小组模拟工业制备 NH₃SCN，其原理是：CS2+3NH3催化剂NH4SCN+NH4HS,其中不合理的是A. 制备氨气B. 观察氨气流速C. 制备NH4SCND. 尾气处理A. 该物质在常温下能与水以任意比例互溶B. 分子中所有碳原子可共平面C. 该物质可以发生取代反应、加成反应和消去反应D. 1mol该物质与足量 NaOH 溶液反应,最多可消耗3mol NaOH8. 右边是碳元素的价类二维图，有关说法不正确的是A. a是最简单的有机化合物B. b在高温下被 SiO₃氧化成eC. d与血红蛋白结合的能力比O₃强D. 将氨气和e通入饱和食盐水中可得到m9. 下列陈述I和II均正确，但不具有因果关系的是选项陈述I陈述IIA1mol·L₃¹NaCl溶液的导电性比同浓度醋酸强NaCl 溶液的 pH 比醋酸的高B浓H₃SO₃能吸收糖类化合物中的水分并使其炭化浓硫酸具有脱水性C石油裂解气能使溴的CCl₃溶液褪色石油裂解可得到乙烯等不饱和烃D FeCl₃可用于腐蚀印刷电路板上的 Cu FeCl₃具有氧化性10. 我国科学家首次在实验室实现 CO₃到淀粉的合成，其路线如下，设) N A为阿伏加德罗常数的值。

广东省六校2018届高三下学期第三次联考英语试题学校__

广东省六校（广州二中，深圳实验，珠海一中，中山纪念，东莞中学，惠州一中）2018届高三下学期第三次联考英语试题学校:___________姓名：___________班级：___________考号：___________一、阅读选择Questioning the existence of aliens is something that scientists have done for decades. In fact, most people do believe that aliens exist in some fashion. The main necessities for life are water and some form of energy source. Not surprisingly, there are some planets, exoplanets and moons that fit the bill. Here are several best chances at finding life in the universe.◆TRAPPIST-1TRAPPIST-1 is a planetary system a few dozen light-years away, whose discovery was announced in early 2017. This system consists of seven Earth-like exoplanets orbiting an "ultra-cool" star, and it is one of our shots at finding possible life beyond our own solar system.◆TitanTitan is the largest moon of Saturn, the sixth planet from our Sun. This moon could potentially harbor life but possibly not in the sense that we think. Titan does not exactly fit the description of being in a typical habitable zone.Titan has water, and it has liquid. It just doesn't have liquid water. The water on this moon is completely solid because of the extremely cold temperature.◆EuropaEuropa is one of Jupiter's moons here in our own solar system. It is another candidate due to its potential to hold liquid water. Europa is thought to have all the necessities for life including water, energy sources, and the right chemical build-up.◆MarsThe Red Planet, the fourth from the Sun, is probably one of the most talked-about potential candidates for extraterrestrial(地球外的) life and even for human colonization. Despite some different voices, finding extraterrestrial life on Mars really is a serious possibility.We know by now that we won't find little green men or any intelligent form of life that we understand. However, there is evidence that there was and may still be microscopic life on the small red planet.1．The common point of these celestial bodies is that _______.A．solid water exists on them respectivelyB．life might exist on each of themC．they all contain liquid waterD．each of them has living things on it2．Which celestial body could have life different from human imagination? A．TRAPPIST-1. B．Titan.C．Europa. D．Mars.3．Which of the following statements is TRUE?A．Europa is the most talked-about potential candidate for extraterrestrial life. B．TRAPPIST-1 is the only body that contains life beyond the solar system.C．All the scientists do believe that aliens exist in some manner.D．There is proof that life existed on the celestial body Mars.About a month after I joined Facebook, I got a call from Lori Goler, a highly regarded senior dir ector of marketing at eBay. She made it clear this was a business call. “I want to apply to work with you at Facebook,” she said. “Instead of recommending myself, I want to ask you: What is your biggest problem, and how can I solve it?”My jaw hit the floor. I had hired thousands of people over the previous decade and no one had ever said anything remotely like that. People usually focus on finding the right role for themselves, with the implication that their skills will help the company. Lori put Face book’s needs front and center. It was a killer approach. I responded, “Recruiting is my biggest problem. And, yes, you can solve it.”Lori never dreamed she would work in recruiting, but she jumped in. She even agreed to trade earnings for acquiring new skills in a new field. Lori did a great job running recruiting and within months was promoted to her current job, leading People@Facebook.The most common metaphor for careers is a ladder, but this concept no longer applies to most workers. As of 2010, the average American had eleven jobs from the ages of eighteen to forty-six alone. Lori often quotes Pattie Sellers, who came up with a much better metaphor: “Careers are a jungle gym, not a ladder.”As Lori describes it, there’s only one way to get to the top of a ladder, but there are many ways to get to the top of a jungle gym. The jungle gym model benefits everyone, but especiallywomen who might be starting careers, switching careers, getting blocked by external barriers, or reentering the workforce after taking time off. The ability to create a unique path with occasional dips, detours (弯路), and even dead ends presents great views of many people, not just those at the top. On a ladder, most climbers are stuck staring at the butt of the person above. 4．Why did Lori make the call?A．She helped Facebook to solve the biggest problem.B．She wanted to make a business deal with Facebook.C．She tried to ask for a pay rise in Facebook.D．She wanted to become an employee in Facebook.5．What impressed “I” b y Lori?A．Lori was good at running recruiting.B．Lori attached great importance to Facebook’s needs.C．Lori jumped in Facebook with no adequate experience.D．Lori was skilled in marketing at eBay.6．What can we infer from the passage?A．Now all people don’t tend to climb the ladder.B．None on the ladder can enjoy the great views.C．Jungle gyms offer limited exploration for employees.D．A pregnant woman, jobless, benefits little from the jungle gyms.7．What is the best title of the passage?A．It’s a Jungle Gym, Not a Ladder.B．Facebook’s Biggest Problem.C．Applying for a Job in Facebook.D．A Jungle Gym is Better than a Ladder.Careers in zoology are extremely varied and unique, and can provide incredible learning and work opportunities for anyone devoted to animal studies and welfare. Zoology, or the study of animals, is a wide field with many specialties, including research, conservation, veterinary (兽医的) medicine, and the care of animals. For people with a love of animals and some training, dreams of careers in zoology may come true.Some careers in zoology focus on research and scientific studies. These careers may allow those with a good theoretical science background to develop and run studies that improvehuman understanding of the animal world. Research in zoology can help create safer and more effective products for animals or can teach humans more about animal behavior in order to aid in conservation, breeding programs, and habitat preservation.Careers in zoology that focus on conservation attach great importance to the continued survival and increased protection of animal species. Conservationists may work with political groups or governments to help make laws to protect and preserve animals, or may work in the field gathering information on potential threats to the health of global ecosystems. Some conservationists work in educational fields, trying to improve human efforts to save animals from extinction.Animals are subject to illness and injury, and some careers in zoology help to create a safe, stable animal population. Veterinary medicine is an important specialty field, and may take several years of intensive training to qualify as a certified veterinarian. While many veterinarians focus on the small-animal practice of domestic pets, vets in rural areas often work with large farm animals and more adventurous veterinarians may work with exotic species in zoos and wildlife preserves. .Humans love to observe animals, and modern-day zoos and wildlife preserves help meet that interest while providing facilities to assist with conservation programs. Zoology careers in zoos can range from overseeing breeding programs, to creating the proper diet for a deer, to cleaning the tiger’s cage. Many volunteer and entry-level jobs are available for people that love animals.8．What is the purpose of researching on animals in zoology?A．To help governments make laws.B．To improve researchers’ scientific knowledge.C．To create safe and effective products for humans.D．To educate people to protect animals.9．What can careers in zoology that focus on veterinary medicine help?A．Better understand animals. B．Protect animals’ health.C．Clean the animals’ cages.D．Increase the number of animals. 10．Which of the following shows the structure of the whole passage?(P1=paragraph 1; P2= paragraph 2; P3= paragraph 3; P4= paragraph 1; P5= paragraph 5;)A．B．C．D．11．What does the passage mainly present?A．V olunteers’ passion for zoology.B．A new idea of careers in zoology.C．Different types of careers in zoology.D．Effective measures of animal protection.NEW YORK－A massive winter storm paralyzed much of the US East Coast on Thursday and Friday, dumping as much as 46 centimeters of snow from the Carolinas to Maine. It also caused flooding on the streets of Boston due to swelling storm tides, forced the cancellation of nearly 5,000 flights and closed businesses, offices and schools.Some meteorologists (气象学家) classified the storm as a "bomb cyclone" for its sharp drop in atmospheric pressure would be followed immediately by a blast of cold air that could break records in more than two dozen cities and bring wind chills as low as -40℃ during the weekend.From Baltimore, Maryland, to Caribou in Maine, efforts were underway to clear roadways of ice and snow as wind chill temperatures were to plunge during the day, reaching -40℃ in some parts after sundown, according to the National Weather Service.Utility companies across the East worked to repair downed power lines early on Friday as about 21,000 customers remained without electricity, down from almost 80,000 the day before, and issued warnings that temperatures may become dangerously low."If the temperature in your home begins to fall, we recommend taking shelter elsewhere until service can be restored. You can find warming centers by contacting local authorities," National Grid power company, which serves Massachusetts, said on Twitter.Airlines canceled 4,000 flights on Thursday and hundreds more on Friday, according to , an online tracking service.Mayor Bill de Blasio said it could feel like -30℃ on Friday and Saturday nights with thewind chill. "This is a serious, serious storm, and may be the most severe in 2018," he said at a news conference.New York Governor Andrew Cuomo declared a state of emergency for the southern part of the state, while New Jersey Governor Chris Christie declared a state of emergency for several counties.12．Which of the following is NOT the consequence of the massive winter storm? A．Breakdown of the US coastB．Flooding in Boston.C．Cancellation of nearly 5,000 flights.D．Closure in business, offices, and schools.13．Why did some meteorologists classify this winter storm as “bomb cyclone”? A．Because it will cause changeable atmospheric pressure.B．Because the scale of this storm could break records in lots of cities.C．Because of the deadly and destructive effects of this storm.D．Because of the extremely cold air and the wind chills in this storm.14．Which of the following best explains the underlined word “plunge” in P3?A．decline steadily B．drop dramaticallyC．fluctuate violently D．fall moderately15．About the rescue work, which of the following statements is INCORRECT? A．People were making great efforts to rid roadways of ice and snow.B．About 101 thousand people were left without electricity on Thursday.C．Residents can stay in warming centers until heating service is restored.D．Aviation service hasn't been brought back to normal yet until Friday.二、七选五"A question brought me to the point of ending my life when I was fifty years old. My question was the simplest one that lies in every person. It is the question without which life is impossible: Why do I live? 16．Is there anything in my life that will not be destroyed by my death?"These are the words of the famous Russian writer Leo Tolstoy. Many people ask these difficult questions. And they struggle to find meaning in their life. Tolstoy spent his whole life trying to answer difficult questions like these. 17．In the 1850s, Leo Tolstoy wrote his first stories. He wrote about his experiences in the military. He also told stories about when he was a child. 18．He was finally successful. He earned respect from many wealthy and intelligent men, who talked a lot about faith and the meaning of life. But soon he found they were proud and they made very bad moral choices.19．He opened a school for the children of people who worked on his land. They were very poor. He wanted to help them because he thought they were more honest than the wealthy people he knew.Tolstoy learned many things from his workers. He respected how they worked hard to provide for their families. 20．So in 1862, Leo Tolstoy married a young woman named Sonya Behrs. The next 15 years were the best years of Tolstoy's life. It was during this time that he wrote his most famous books-- War and Peace and Anna Karenina. They communicate what he thought was the answer to all his questions-- humans were supposed to live a simple life and take care of their families.A．These works were published and Tolstoy became a well-known writer.B．How can I realize my dream if I have one?C．Why do I wish for anything, or do anything?D．He gained a lot of inspirations which had great influence on his following actions.E.His search for answers influenced his writing.F.So in the 1860s, Tolstoy tried a different way to find the meaning of life.G.He began to believe that marriage and family would give his life meaning.三、完形填空I come from one of those families where you have to yell at the dinner table to get ina word. Everyone has a strong 21 , and talks at the same time, and no one has a 22 leading to heated arguments. We often talk or even debate with each other on different topics.23 a family like mine has made me more 24 about the world around me, making me tend to question anything anyone tells me. But it has also made me realize that I’m not a good listener. And when I say “listening”, I’m not 25 to the nodding-your-head-and- 26 -answering-Uh-huh-or-Ooh-I-see variety. I mean the kind of listening where you find yourself deeply 27 with the person you’re speaking with, when his story becomes so 28 that your world becomes less about you and more about him. No, I was never very good at that.I spent summer in South Africa two years ago. I worked for a good non-profit 29 called Noah, which works 30 on behalf of children affected by AIDS. But 31 you asked me what I really did in South Africa, I’d tell you one thing: I listened, and I listened. Sometimes I 32 , but mostly listened.And had I not spent two months 33 , I might have missed the 34 moment when a quiet little girl at one of Noah’s community centers, orphaned（孤儿）at the age of three, whispered after a long 35 , “I love you.”36 that summer, I knew how to hear. I could sit down with anyone and hear their37 and nod and respond at the 38 time—but most of the time I was 39 about the next words out of my own mouth. Ever since my summer in South Africa, I have noticed that it’s in those moments when my mouth is closed and my 40 is wide open that I’ve learned the most about other people, and perh aps about myself. 21．A．qualification B．influence C．opinion D．assumption 22．A．commitment B．problem C．schedule D．request 23．A．Belonging to B．Believing in C．Bringing up D．Struggling for 24．A．anxious B．curious C．nervous D．adventurous 25．A．objecting B．appealing C．turning D．referring 26．A．rudely B．loudly C．politely D．gratefully 27．A．identifying B．quarreling C．debating D．competing 28．A．vivid B．magical C．mind-numbing D．time-consuming 29．A．school B．organization C．factory D．church 30．A．effortlessly B．timelessly C．aimlessly D．tirelessly 31．A．unless B．because C．although D．if 32．A．applauded B．spoke C．wept D．complained 33．A．studying B．traveling C．listening D．working 34．A．touching B．frustrating C．astonishing D．fascinating 35．A．delay B．course C．journey D．silence 36．A．Before B．After C．Except D．Since 37．A．needs B．stories C．comments D．cases 38．A．valuable B．free C．right D．same 39．A．talking B．arguing C．learning D．thinking 40．A．sympathy B．spirit C．mind D．family四、用单词的适当形式完成短文A lot of films have tried to describe the afterlife and our memories of family members, 41．few have done as well as Coco, Disney Pixar’s 42．(late) masterpiece animation, which hit the big screen on Nov. 24, 2017.43．(inspire) by the Mexican holiday of Dia de los Muertos — Day of the Dead — the film’s production team created a young boy, Miguel, who wants his family to understand his love of music. 44．that year’s Dia de los Muertos, 45．accident takes him to the Land of the Dead. In this land, there are friendly skeletons who can cross a bridge made of flower petals to visit their living family — that is, as long as their family still puts their photos on the family shrine (神龛). Those spirits who 46．(forget) by their family will disappear completely. So it’s in this magical world 47．Miguel gets to meet and discover the truth about hisgreat-great-grandpa.In an era 48．young people are so 49．(easy) attracted by celebrities, Coco reveals the emptiness of such flattery, teaching kids to preserve and respect the memory of their elders while 50．(remind) them that the source of true creativity is so often personal.五、短文改错51．假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。

广东省六校广州二中深圳实验珠海一中中山纪念东莞中学惠州一中2018届高三下学期第三次联考文科综合地理

大海中上基层水温度的差别，储藏着必定的能量，叫做海水温差能，或称大海热能。

利用海水表层〔热源〕和深层〔冷源〕之间的温度差发电的电站，叫海水温差发电站，能够连续性输出电力且伴生淡水。

1930年在法国初次试验成功，但当时发出的电能还不如耗去的电力多。

最近几年来世界各国海水温差发电的研究获得了实质性进展。

据此达成1～3题。

1、依据海水温差发电原理，以下海疆最有益于海水温差发电的海疆是A.、美国东海岸B.寒暖流交汇处C.地中海沿岸D.南纬20度到北纬20度的大海洋面2、以下有关海水温差发电的说法，正确的选项是A.发电本钱低B.大海污染大 C.发电量稳固 D.能源总量小3、从深海抽取的冷海水营养成分丰富且无菌，有多种用途，深海水的利用不包含A．产制淡水 B.冷冻、空调 C.养殖、制药 D.提炼锰结核图1和表1反应的是我国某山林地散布情况及有关信息，依据图1和表1达成4～7题。

A．阿尔泰山，准葛尔盆地，木盆地B．天山，塔里木盆地，准盆地C．阿尔泰山，塔里木盆地，尔盆地D．天山，准葛尔盆地，塔盆地海拔(m)年均温1月均温(℃)(℃)6628.67709.29008.41007.071267.04148 6.02177 1.-14.2817月均温年均降(℃)水〔mm〕243422.324、图166中A、B21.39与C地71分别图1位于20.5840塔里19.6264葛尔16.7891准葛14.8710里木5、假如只考虑冬季温度因素，野果林应当散布在海拔A.、海拔770以下B、海拔770－1480m之间C、海拔1480-1772之间D、海拔1772以上6、此山地号称“塞外江南〞，野果林散布地域降水量较为丰富的最主要因素是A．太阳辐射B．西民风流C．海陆地点D．地形地势7、此山地所在省区地域“雅丹〞地貌发育。

该地“雅丹〞地貌在形态上体现垄、槽相间的形态〔图2〕，其发育与流行风的吹蚀亲密有关。

假如该地域常常吹寒风，可知“雅丹〞地貌垄、槽的伸展方向为A、西北----东南B、西北----东北C、东南----西南D、东北－西南图2：该地雅丹地貌形态黄土高原河流的径流和泥沙主要根源于几次大的暴雨过程。

广东省六校广州二中深圳实验珠海一中中山纪念东莞中学惠州一中2018届高三下学期第三次联考文科综合地理

【高三数学试题精选】2018年2月惠州一中、珠海一中等六校联考高三数学(理)试题及答案

广东省东莞中学广州二中惠州一中深圳实验珠海一中中山纪念中学高三第三次六校联考语文答案

广东省六校(珠海一中,东莞中学,惠州一中)2018届高三下学期第三次联考文科综合历史试题+Word版含解析

广东省六校(广州二中,深圳实验,珠海一中,中山纪念,东莞中学)高三联考(10月份)数学(理)含解析

2018届广东省高三六校(广州二中深圳实验珠海一中中山纪念东莞中学惠州一中)第三次文科联考

广东省六校(广州二中,深圳实验等)2018届高三下学期第三次联考语文试题

2018届广东省六校广州二中深圳实验珠海一中中山纪念东莞中学惠州一中高三下学期第三次联考理科综合化学试题

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广东省六校珠海一中中山纪念中学等2018届高三下学期第三次联考英语试题及答案

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广东省东莞中学广州二中惠州一中深圳实验珠海一中中山纪念中学高三第三次六校联考化学

广东省六校2018届高三下学期第三次联考英语试题学校__

广东省六校广州二中深圳实验珠海一中中山纪念东莞中学惠州一中2018届高三下学期第三次联考文科综合地理

2018年高三最新广东省六校2018届高三第三次联考数学试题(理科) 精品