2019届河北省邯郸市六校(大名县、磁县等六区县一中)高二下学期期末联合考试英语试题
2018-2019学年河北省邯郸市六校(大名县、磁县等六区县一中)高二下学期期末考试地理试题 解析版
邯郸市六校高二年级联合考试地理考生注意:1.本试卷分第I卷(选择题)和第Ⅱ卷(非选择题)两部分,共100分。
考试时间90分钟。
2.请将各题答案填写在答题卡上3.本试卷主要考试内容:高考内容(一轮复习前两章70%,其他30%)。
第I卷(选择题共44分)一、选择题(本大题共44小题,每小题1分,共44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。
)读下列甲、乙二岛图,完成下面小题。
1. 图中甲岛位于乙岛的A. 西南方B. 东南方C. 西北方D. 东北方2. 与右图相比,左图①实地面积较大②比例尺较小③实地面积较小④比例尺较大A. ①②B. ③④C. ①④D. ②③3. 图示甲、乙两岛①甲岛位于西半球②乙岛位于南半球③乙岛地处热带地区④甲岛地处高纬度地区A. ①②B. ③④C. ②③D. ①④【答案】1. D 2. A 3. C【解析】【1题详解】本题考查方位的判断,从纬度看,甲岛位于北纬8°左右,乙岛为与南纬20°附近,甲岛位于乙岛北部;从经度来看,甲岛位于东经80°附近,乙岛位于西经57°附近,甲岛位于乙岛的东侧,综上,甲岛位于乙岛的东北方向,故选D。
【2题详解】本题考查比例尺的相关内容。
两图图上距离相同,其中左图(甲岛)经度和纬度跨度都大于右图(乙岛),因此,左图的实际范围大于右图,比例尺小于右图。
故选A。
【3题详解】本题考查地理位置的描述。
结合所学知识西半球范围为160°E-180°-20°W之间,而甲岛位于东半球,①错;乙岛位于南半球,②正确;乙岛位于南回归线以北的地区,处于热带,③正确;甲岛位于北纬8°附近,位于低纬度,④错误,故选C。
读图,完成下面小题。
4. 下图为某地等高线图(单位:m),图中等高距为50m图中乙、丁两地相对高度可能是A. 280mB. 350mC. 500mD. 600m5. 在甲、乙、丙、丁四处中,最可能有河流流经的是A. 甲B. 乙C. 丙D. 丁6. 图中甲地到乙地景观大道修建合理的依据是A. 避免了自然灾害的发生B. 大致沿和缓地形修建C. 沿途地势陡,奇险景观多D. 沿等高线呈“之”字形迂回前进【答案】4. C 5. D 6. B【解析】本题考查等高线地形图的判读、应用及地形对交通建设的影响。
2019年河北大名县、永年、磁县、邯郸县高二下期中联考英语卷【含答案及解析】
2019年河北大名县、永年、磁县、邯郸县高二下期中联考英语卷【含答案及解析】姓名___________ 班级____________ 分数__________一、阅读理解1. Once upon a time, there was a wonderful old man who loved everything on the land —— animals and plants.One day while walking through the woods, the old man found a cocoon of a butterfly. He took it home. A few days later, a small opening appeared; he sat and watched the butterfly for several hours as it struggled to force its body through that little hole. Then it seemed to stop making any progress. It appeared as if it had gotten as far as it could and it could go no farther. Then the man decided to help the butterfly, so he took a pair of scissors and cut the remaining bit of the cocoon. The butterfly then came out easily.But it had a swollen body and small, shriveled wings. The man continued to watch the butterfly because he expected that, at any moment, the wings would enlarge and expand to be able to support the body, or they would be smaller. Neither happened! In fact, the butterfly spent the rest of its life crawling around with a swollen body and shriveled (枯萎)wings. It never was able to fly.What the man in his kindness and hurry did not understand was that the struggle required for the butterfly to get through the tiny opening was nature’s way of forcing fluid from the body of the butterfly into its wings so that it would be ready for flight once it achieved its freedom from the cocoon.Sometimes struggles are exactly what we need in our life. If we were allowed to go through our life without any difficulties, it would cripple (无能) us. We would not be as strong as what we could have been. And we could never fly.1.The old man cut the cocoon in order to ____.A. kill the butterflyB. play with the butterflyC. make the butterfly come out easilyD. have the butterfly2.The reason why the butterfly could not fly is that _____.A. the old man broke its wingsB. it was too smallC. newly born butterflies can’t flyD. it came out of its cocoon without enough struggle3.What can we know from the passage?A. That old man was fond of everything except the butterfly.B. It was the old man that stopped the butterfly flying.C. The old man realized his mistake.D. It’s not hard for the butterfly to come out of the cocoon.4.What does the author want to tell us by writing the passage?A .We should help others.B. Without others' help we can still succeed.C. Struggles in our life can make us stronger.D. Butterflies can fly without people’s h elp.2. Long March exhibitThe Shanghai History Museum is putting on an exhibition to mark the 60th anniversary of the Long March. On show are more than 220 photos and 40 items that explain withpictures how the communist Red Army drew back from its besieged (被围困的) bases in Jiangxi Province and fought its way to northern Shanxi province in the mid-1930s. Explanations are all in Chinese. The show will end on November 20.Time: 10:00 am—4:00 pm.Address: 1286 Hongqiao RoadAdmission: 8 yuan for Chinese/ 15 yuan for foreignersThai elephantsEight elephants from Thailand are entertaining visitors at Changfeng Park by riding bikes, playing basketball, balancingon a beam, dancing and blowing a mouth-organ. People are encouraged to have a tug-of-war (拔河比赛) with the animalsor lie on the ground and have the elephants walk over them. The elephants give three shows a day at 9:30 am,3:30 pm and 8:00 pm and there is an additional show at 1:30 pm at weekends. The show will end on November 15.Address: 189 Daduhe RoadAdmission: 30-40 yuanDancing dolphinsDolphins jumping from the water to touch a ball, swaying their bodies to music, kissing people and solving math by tapping their tails have made the dolphinarium in Peace Park an attraction for children. Seals and sea lions also perform. Hours: 10:30 am, 4:00 pm, and 7:30 pmAdmission: 20 yuan for adults and 10 yuan for children.1. If you go to visit the Long March exhibit with an Australian, how muchwill you pay altogether for the admission?A. 16 yuanB. 23 yuanC. 30 yuanD. 20 yuan2. At the exhibition, you will see ________.A. many articles written by famous writersB. many things left by the Red ArmyC. books on the Long MarchD. many photos and pictures about the Long Match.3. Which of the following is NOT done by the Thai elephants?A. Riding bicycles.B. Blowing a mouth-organC. Doing mathD. Having a tug-of-war with people.4. The dolphinarium in Peace Park is a hall where you can see________.A. not only dolphins but also seals and sea lions performB. only seals and sea lions performC. only dolphins performD. only seals perform3. For years we have been told that encouraging a child’s self-respect is important to his or her success in life. But child experts are now learningthat too much praise can lead to the opposite effect. Praise-aholic kids who expect it at every turn may become teens who seek the same kind of approvalfrom their friends when asked if they want to go in the backseat of the car.The implication (含义) of saying “You are the prettiestgirl in class,” or talking about the goals she scored but not her overall effort, is that you love her only whenshe looks the best, scores the highest, achieves the most. And this carries over to the classroom.Social psychologist Carol Dweck, PhD, tested the effects of over praise on 400 fifth graders while she was at ColumbiaUniversity. She found that kids praised for “trying hard” did better on tests and were more likely to take on difficult assignments than those praised for being “smart”.“Praising attributes (品质) or abilities makes a false promise that success will come to you because you have that quality, and it devalues effort, so children are afraid to take on challenges,” says Dweck, now at Stanford University. “They figure they’d better quit while they’re ahead.”1. The underlined words “Praise-aholic kids” refer to kids who are ______.A. tired of being praisedB. extremely fond of being praisedC. very proud of being praisedD. worthy of being praised2. The author quoted Dr. Dweck’s words in the last paragraph in order tomake the article ________.A. more persuasiveB. better-organizedC. better-knownD. more interesting3. We can infer from the passage that _____.A. praise for results works better than praise for effortsB. praise for efforts should be more encouragedC. praising a child’s achievements benefits his or her success in lifeD. praising a child’s abilities encourages him or her to take on challenges4. World travel has moved on to a new level as new websites spring up to enable travelers to plan their trips online. Virtual tourism is the latest name of the game and although relatively new, has seen some tourism websites grow to host over one-million users.Typically, this development features a website that contains the answers to almost any tourism question.Tips and information are not provided by a single source, such as the website host, but rather from travelers themselves-oftenin the thousands. This has proven to be exceptionally beneficial for would-be travelers who are seeking infomtation on questions such as where to find the best museum or beach; whether it is better to tour Brussels with a bicycle oron foot; and which exchange rate bureaus are available in Italy. Questionsabout food and restaurants; tourist spots; safety; accommodation; and othersare all answered. In addition, posted tips promote better preparation, such as what to pack when heading for Sicily(西西里岛).Apart from the useful tips, visual images and virtual tours have also been made available.If you'd like to visit the Eiffel Tower, it's a good idea to view the surrounding areas; to pick a safer train route; or to know that it's very close to the Seine River and that a walk along it would enhance the experience.Virtual tours have sprung up globally.In South Africa, John Gore established the Virtual Tour Guide in November last year. On his blog, Gore was quoted a saying, "The world is panoramic(全景的). "'We are able to tum our heads and look in all directions and get a feel for where we are, but the typical photograph cannot show or describe that experience completely. " However, there is an answer--technology makes it possible to share the world around us in a 360 degree panoramic way, which really makes the viewer feel as though he or she is really there.1. Why is virtual tourism more and more popular?A. Online games are more and more attractive.B. Many new websites appear and develop fast.C. More and more people want to travel abroad.D. It helps travelers save as much money as possible.2. From the second paragraph we knowA. we can solve any problem on websitesB. websites offer all the tips and informationC. we can get all our questions answered onlineD. we can get many tips about tourism on websites3. What does the underlined word "sprung up" most probably mean?A. Appeared.B. Moved.C. Competed.D. Reduced.4. What makes us see the world in a panoramic way?A. Information.B. Photograph.C. Technology.______________D. Virtual images.二、七选五5. 根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。
河北省邯郸市六校2018-2019学年高二下学期期末考试语文试卷及参考答案
河北省邯郸市六校(大名县、磁县等六区县一中)2018-2019学年高二下学期期末语文试题考生注意:1.本试卷共150分,考试时间150分钟。
2.请将各题答案填写在答题卡上。
3.本试卷主要考试内容:高考全部内容。
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,完成下面小题。
孔子不仅是一位伟大的思想家、政治家、教育家,同时还是一位音乐家。
孔子对音乐的兴趣与他对周礼的重视是密不可分的。
南宋史学家郑樵曰:“礼乐相须以为用,礼非乐不行,乐非礼不举。
”孔子对周礼的倾心追慕和深入钻研,使他对“音乐”的社会文化功能有着深刻的认识。
“礼崩乐坏”之所谓“乐坏”,一方面表现为周代典章制度中用以昭示“以仪辨等”的用乐秩序的混乱;另一方面则表现为贵族群体审美倾向的转移,即厌古乐而喜新乐。
二者的实质,都是“乐”与“礼”的分离,即“雅乐”精神的失落。
孔子适逢这段文化裂变期的时空中心,对行将失落的周代雅乐进行修复、改造和传播,是他必须面对的、不容回避的文化使命。
“正乐”是孔子为纠正礼乐秩序倾颓采取的重要措施。
孔子曰:“吾自卫反鲁,然后乐正,《雅》《颂》各得其所。
”《史记·孔子世家》载:“三百零五篇,孔子皆弦歌之,以求合《韶》《武》《雅》《颂》之音。
礼乐自此可得而述,以备王道,成六艺。
”孔子的“正乐”是对《诗》的乐章和音律的规范整理,使之符合周礼对雅乐的要求。
孔子的“正乐”还包括对乐器使用制度的维护。
《左传》记载:成公二年,卫国侵齐,新筑大夫仲叔于奚救了卫国主帅孙良夫,卫穆公想赏给他城邑,却被仲叔于奚辞谢了,而请求得到诸侯用的曲县的乐器和马饰。
对于这件事,孔子认为,“不如多与之邑”,因为“器以藏礼”,曲县的乐器制度和繁缨的马饰,都是诸侯才能用的礼器,仲叔于奚本为大夫,因战功而拥有这些礼器是不恰当的。
乐音和乐器在孔子那里,不仅是供人欣赏、上下和合的表演艺术,也是载礼之器、行礼之仪,因此孔子“正乐”的实质在于为乱世“正礼”。
河北省邯郸市磁县第一中学2019年高二数学理下学期期末试卷含解析
【点睛】本题主要考查椭圆中焦点三角形面积公式及其应用等知识,意在考查学生的转化能力和计算求解能力.
12.已知P是双曲线 上一点,F1、F2是左右焦点,⊿P F1F2的三边长成等差数列,且∠F1P F2=120°,则双曲线的离心率等于
参考答案:
13.下列四种说法
A.0B.1C.2D.3
参考答案:
B
【考点】空间中直线与平面之间的位置关系.
【专题】计算题;转化思想;综合法;空间位置关系与距离.
【分析】在①中,另一条与这个平面平行或在这个平面内;在②中,l与平面α内的任意一条直线都平行或异面;在③中,l与平面α内的任意一条直线都平行或异面,故l与平面α内的任意一条直线都没有公共点;在④中,l∥α或l与平面相交.
①在 中,若 ,则 ;
②等差数列 中, 成等比数列,则公比为 ;
③已知 ,则 的最小值为 ;
④在 中,已知 ,则 .
正确的序号有.
参考答案:
①③④
14.对正整数n,设曲线y= 在x=2处的切线与y轴交点的纵坐标为 ,则数列 的前n项和是.
参考答案:
略
15.已知椭圆: 的焦距为4,则m为
参考答案:
4或8
参考答案:
7.35
略
17.已知定义在 上的偶函数 的图象关于直线 对称,若函数 在区间 上的值域为 ,则函数 在区间 上的值域为_▲_.
参考答案:
17由条件知, 是周期为2的周期函数,当 时, .
三、
18.某学校为了教职工的住房问题,计划征用一块土地盖一幢总建筑面积为A(m2)的宿舍楼,且每层的建筑面积相同,土地的征用面积为第一层的2.5倍,土地的征用费为2388元/m2.经工程技术人员核算,第一、二层的建筑费用相同都为445元/m2,每增高一层,其建筑费用就增加30元/m2.试设计这幢宿舍楼的楼高层数 ,使总费用 最少,并求出其最少费用.(总费用为征地费用和建筑费用之和).
河北省邯郸市六校(大名县、磁县等六区县一中)2018-2019学年高二下期期末联合考试数学(理)试题(含解析)
绝密★启用前河北省邯郸市六校(大名县、磁县等六区县一中)2018-2019学年高二下学期期末联合考试数学(理)试题试卷副标题注意事项:1.答题前填写好自己的姓名、班级、考号等信息 2.请将答案正确填写在答题卡上第I 卷(选择题)请点击修改第I 卷的文字说明 一、单选题1.已知集合{}1,1,3,5,7A =-,(){}2log 3B x y x ==-,则A B =I ( ) A .{}1,3,5,7 B .{}1,5,7C .{}3,5,7D .{}5,72.已知复数32iz i-=+的共扼复数在复平面内对应的点为(),x y ,则( ) A .32x y -=B .32x y -=C .32x y +=D .32x y +=3.函数()212()log 295f x x x =+-的单调递增区间为( )A .1(,5),2⎛⎫-∞-⋃+∞⎪⎝⎭B .(,5)-∞-C .1,2⎛⎫+∞⎪⎝⎭D .(0,)+∞4.曲线sin 22xy x e π⎛⎫=++ ⎪⎝⎭在点()0,3处的切线方程是( ) A .230x y +-=B .30x y -+=C .260x y -+=D .230x y -+=5.在ABC V 中,角A ,B ,C 所对的边分别是a ,b ,c ,若角A ,C ,B 成等差数列,且2sin sin sin C A B =,则ABC V 的形状为( ) A .直角三角形 B .等腰非等边三角形12.设()f x '是偶函数()()0f x x ≠的导函数,当()0,x ∈+∞时,()()20xf x f x -'>,则不等式()()()242019201920f x x f +-+-<的解集为( ) A .(),2021-∞- B .()()2021,20192019,2017----U C .()2021,2017-- D .()(),20192019,2017-∞---U第II 卷(非选择题)请点击修改第II 卷的文字说明 二、填空题13.已知函数2(2)1,0,()2,0,f x x f x x x -+>⎧=⎨+⎩„则(5)f =_______. 14.已知一扇形的面积是8cm 2,周长是12cm ,则该扇形的圆心角α(0<α<π)的弧度数是_______15.在ABC V 中,a ,b ,c 分别是角A ,B ,C 所对的边,且()2cos cos 0a b C c B ++=,则sin sin A B ⋅的最大值为_________. 16.已知函数()32xxf x e ex x -=-+-,若()()2320f m f m --≤,则m 的取值范围是___________. 三、解答题17.已知全集U =R ,集合{}2|340A x x x =+-≤,{}|11B x m x m =-≤≤+.(1)若1m =,求()U A B I ð; (2)若B A ⊆,求m 的取值范围.18.在ABC V 中,a ,b ,c 分别是角A ,B ,C 所对的边,且sin sin sin sin a b C Bc A B--=+. (1)求A 的值;(2)若8+=b c ,求ABC V 面积的最大值. 19.已知函数()sin 232f x x π⎛⎫=+- ⎪⎝⎭.(1)()f x 的最小正周期及单调递增区间; (2)当,36x ππ⎡⎤∈-⎢⎥⎣⎦时,求()f x 的最小值. 20.已知二次函数()f x 满足(0)2f =,且(1)()23f x f x x +-=+. (1)求()f x 的解析式;(2)设函数()()2h x f x tx =-,当[1,)x ∈+∞时,求()h x 的最小值;(3)设函数12()log g x x m =+,若对任意1[1,4]x ∈,总存在2[1,4]x ∈,使得()()12f x g x >成立,求m 的取值范围.21.已知函数()12cos sin 2f x x x x x =-+,()f x '为()f x 的导函数. (1)证明:()f x '在0,2π⎛⎫⎪⎝⎭上存在唯一零点. (2)若0,2x π⎡⎤∈⎢⎥⎣⎦,()f x ax ≥恒成立,求a 的取值范围. 22.在直角坐标系xOy 中,斜率为k 的动直线l 过点()6,0,以坐标原点O 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=.(1)若直线l 与曲线C 有两个交点,求这两个交点的中点P 的轨迹1C 关于参数k 的参数方程;(2)在条件(1)下,求曲线1C 的长度. 23.已知函数()()214f x a x x =+---. (1)当1a =时,解不等式()8f x x >+;(2)关于x 的不等式()24f x x x a >-++的解集包含区间[]1,2-,求a 的取值范围.参考答案1.D 【解析】 【分析】求解集合B ,再利用集合的交集定义求解即可. 【详解】∵(){}{}2log 33B x y x x x ==-=>,∴{}5,7A B =I . 故选:D . 【点睛】本题主要考查了集合的基本运算,难度容易. 2.A 【解析】 【分析】化简得到1z i =-,故1z i =+,则1x =,1y =,验证得到答案. 【详解】 因为()()()()3231222i i i z i i i i ---===-++-,所以z 的共扼复数为1i +,则1x =,1y =. 故满足32x y -=. 故选:A . 【点睛】本题考查了复数的化简,共轭复数,意在考查学生的计算能力. 3.B 【解析】 【分析】先求出()212()log 295f x x x =+-的定义域,再利用同增异减以及二次函数的图像判断单调区间即可. 【详解】令22950x x +->,得f (x )的定义域为1(,5),2⎛⎫-∞-⋃+∞⎪⎝⎭,根据复合函数的单调性规律,即求函数2295t x x =+-在1(,5),2⎛⎫-∞-⋃+∞⎪⎝⎭上的减区间,根据二次函数的图象可知(,5)-∞-为函数2295t x x =+-的减区间.故选:B 【点睛】本题主要考查对数函数的定义域以及复合函数的单调区间等,属于基础题型. 4.D 【解析】 【分析】求导得到sin 2xy x e '=-+,故0022x y ==+=',计算切线得到答案.【详解】sin 2cos 22x x y x e x e π⎛⎫=++=+ ⎪⎝⎭,sin 2x y x e '=-+,0022x y ==+=',所以切线方程为()320y x -=-,即230x y -+=. 故选:D . 【点睛】本题考查了切线方程,意在考查学生的计算能力. 5.C 【解析】 【分析】由已知利用等差数列的性质可得60C =︒,由正弦定理可得2c ab =,根据余弦定理可求a b =,即可判断三角形的形状.【详解】解:由题意可知,60C =︒, 因为2sin sin sin C A B =, 所以2c ab =,则222222cos c a b ab C a b ab ab =+-=+-=,所以a b =, 所以a b c ==, 故ABC ∆为等边三角形. 故选:C . 【点睛】本题主要考查了等差数列的性质,正弦定理,余弦定理在解三角形中的应用,考查了转化思想,属于基础题. 6.A 【解析】 【分析】根据2 5.852K ≈得到()25.0240.025P K ≥≈,得到答案. 【详解】2 5.852K ≈,故()25.0240.025P K ≥≈,故判断“是否爱吃零食与性别有关”出错的可能性不超过2.5%. 故选:A . 【点睛】本题考查了独立性检验问题,意在考查学生的理解能力和应用能力. 7.B 【解析】 【分析】由指数函数的单调性可得a b <;由椭圆方程可得0a b <<,再由充分必要条件的定义,即可得到所求结论. 【详解】解:若1122a b⎛⎫⎛⎫> ⎪ ⎪⎝⎭⎝⎭,则a b <, 若方程221x y a b+=表示焦点在y 轴上的椭圆,则0b a >>,即“1122ab⎛⎫⎛⎫> ⎪ ⎪⎝⎭⎝⎭”是“方程221x y a b +=表示焦点在y 轴上的椭圆”的必要不充分条件.故选:B 【点睛】本题考查指数函数的单调性以及椭圆方程,考查充分必要条件的定义,考查推理能力,属于基础题. 8.C 【解析】 【分析】判断出命题p 、q 的真假,即可判断出各选项中命题的真假,进而可得出结论. 【详解】Q 函数()2x f x x =+在()0,+∞上单调递增,()()1012019f x f ∴>=>,即命题p 是假命题;又sin sin A B >Q ,根据正弦定理知a b >,可得A B >,余弦函数cos y x =在()0,π上单调递减,cos cos A B ∴<,即命题q 是真命题. 综上,可知()()p q ⌝∨⌝为真命题,p q ∧、()p q ∨⌝、()p q ∧⌝为假命题. 故选:C. 【点睛】本题考查复合命题真假的判断,解答的关键就是判断出各简单命题的真假,考查推理能力,属于中等题. 9.A 【解析】 【分析】通过对()g x 式子的分析,把求零点个数转化成求方程的根,结合图象,数形结合得到根的个数,即可得到零点个数. 【详解】 函数()()()2384g x f x f x =-+=()()322f x f x --⎡⎤⎡⎤⎣⎦⎣⎦的零点即方程()23f x =和()2f x =的根, 函数()2log ,0,2,0xx x f x x ⎧>=⎨≤⎩的图象如图所示:由图可得方程()23f x =和()2f x =共有5个根, 即函数()()()2384g x f x f x =-+有5个零点,故选:A . 【点睛】本题考查函数的零点与方程的根的个数的关系,注意结合图象,利用数形结合求得结果时作图很关键,要标准. 10.C 【解析】 【分析】计算9n =,计算()55469C 2T ax =,()44559C 2T ax =,()66379C 2T ax =,根据系数的大小关系得到5454549954563699C 2C 2C 2C 2a a a a ⎧≥⎨≥⎩,解得答案. 【详解】2512n =,9n =,()55469C 2T ax =,()44559C 2T ax =,()66379C 2T ax =,Q 第6项的系数最大,5454549954563699C 2C 2,C 2C 2,a a a a ⎧≥∴⎨≥⎩,则23a ≤≤. 故选:C . 【点睛】本题考查了二项式定理,意在考查学生的计算能力和应用能力. 11.D 【解析】 【分析】计算()39114P X <<=,根据题意得到101131C C 0.1444n n n n -⎛⎫⎛⎫⎛⎫+< ⎪ ⎪⎪⎝⎭⎝⎭⎝⎭,设()()1314nf n n ⎛⎫=+ ⎪⎝⎭,判断数列单调递减,又()40.1f <,()30.1f >,得到答案.【详解】 因为()210,X N σ:,且()198P X <=,所以()39114P X <<=, 即每个零件合格的概率为34. 合格零件不少于2件的对立事件是合格零件个数为零个或一个.合格零件个数为零个或一个的概率为101131C C 444n n n n -⎛⎫⎛⎫⎛⎫+⋅⋅ ⎪ ⎪ ⎪⎝⎭⎝⎭⎝⎭,由101131C C 0.1444nn nn -⎛⎫⎛⎫⎛⎫+< ⎪ ⎪⎪⎝⎭⎝⎭⎝⎭,得()1310.14nn ⎛⎫+< ⎪⎝⎭①,令()()()1314nf n n n *⎛⎫=+∈ ⎪⎝⎭N .因为()()1341124f n n f n n ++=<+, 所以()f n 单调递减,又因为()40.1f <,()30.1f >, 所以不等式①的解集为4n ≥. 【点睛】本题考查了正态分布,概率的计算,数列的单调性,意在考查学生的计算能力和综合应用能力. 12.B 【解析】 【分析】 设()()2f x F x x=,计算()0F x '>,变换得到()()20192F x F +<-,根据函数()F x 的单调性和奇偶性得到20192x +<,解得答案. 【详解】由题意()()()200xf x f x x '->>,得()()220x f x xf x '->,进而得到()()2420x f x xf x x'->,令()()2f x F x x =, 则()()()2420x f x xf x F x x'-'=>,()()224f F --=,()()()2201920192019f x F x x ++=+. 由()()()242019201920f x x f +-+-<,得()()()22019242019f x f x +-<+, 即()()20192F x F +<-.Q 当()0,x ∈+∞时,()0F x '>,()F x ∴在()0,∞+上是增函数. Q 函数()f x 是偶函数,()()2f x F x x∴=也是偶函数,且()F x 在(),0-∞上是减函数, 20192x ∴+<,解得20212017x -<<-,又20190x +≠Q ,即2019x ≠-,()()2021,20192019,2017x ∴∈----U .故选:B . 【点睛】本题考查了利用函数的奇偶性和单调性解不等式,构造函数()()2f x F x x=,确定其单调性和奇偶性是解题的关键. 13.6 【解析】 【分析】根据分段函数的分段定义域分析代入(5)f 直至算出具体函数值即可. 【详解】由题意知2(5)(3)1(1)2(1)3(1)236f f f f =+=+=-+=-++=. 故答案为6 【点睛】本题主要考查分段函数求值的问题,属于基础题型. 14.1 【解析】【分析】设半径为rcm ,则212r r α+=,2182r α=,可解出对答案. 【详解】设半径为rcm ,则212r r α+=,2182r α=, 由212r r α+=有122r r α=-代入2182r α=有:1(122)82r r -=,解得2r = 或4r =, 当2r =时,=4α, 当4r =时,=1α, 又0απ<<, 所以=1α. 故答案为:1 【点睛】本题考查扇形的面积,弧度制公式等,属于容易题. 15.14【解析】 【分析】()2cos cos 0a b C c B ++=利用正弦定理边化角化简可求得23C π=,则有3A B π+=,则11sin sin sin sin sin 23264A B A A A ππ⎛⎫⎛⎫⋅=⋅-=+- ⎪ ⎪⎝⎭⎝⎭借助正弦函数图象和性质即可求出. 【详解】因为()()2cos cos 2sin cos sin 20a b C c B A C B C R ++=++⋅=⎡⎤⎣⎦, 所以1cos 2C =-,所以23C π=. 所以11sin sin sin sin sin 23264A B A A A ππ⎛⎫⎛⎫⋅=⋅-=+- ⎪ ⎪⎝⎭⎝⎭,因为03A π<<,所以当6A π=时,sin sin A B ⋅取得最小值14.故答案为: 14. 【点睛】本题考查正弦定理,三角函数的图象和性质,属于常考题. 16.(][),31,-∞-+∞U 【解析】 【分析】求导得到()261xxf x e ex -'=++-,利用均值不等式判断()0f x '>,得到函数单调递增,故232m m -≤,解得答案. 【详解】()2226161610x x f x e e x x x -'=++-≥-+=+>Q ,∴函数()f x 在R 上单调递增,又()()2320f m f m --≤Q ,()()232f m f m ∴-≤,可得232m m -≤,解得m 1≥或3m ≤-.故答案为:(][),31,-∞-+∞U . 【点睛】本题考查了利用函数的单调性解不等式,均值不等式,意在考查学生对于函数性质的灵活运用.17.(1)(){}|40U B A x x =-≤<I ð;(2)[]3,0- 【解析】 【分析】(1)分别求出U B ð和A ,再取交集,即可。
河北省邯郸市第六中学2019年高二英语联考试卷含解析
河北省邯郸市第六中学2019年高二英语联考试卷含解析一、选择题1. -----Will Jones go skating now?-----Not until she her homework.A.will finish B.would finish C.has finished D.had finished参考答案:C2. He’s ______to fail the exam if he doesn’t do any revision.A. near.B. fitC. boundD. easy参考答案:C3. The engine of the ship was out of order and the bad weather _______the helplessness of the crew.A. added toB. resulted fromC. turned outD. made up参考答案:A【知识归纳】make构成的短语make up 组成,构成,化妆,编造,和好如初;be made of 由---构成(能看出原材料);be made from由---构成(不能看出原材料);be made into 被制成了---;be made up of 由---组成;be made in由某地制成;make friends 交朋友;make preparations for 为---做准备;make oneself done 使某人自己被---。
4. The boy immediately got into a ________ when he found himself trapped in the fire.A. dangerB. debtC. habitD. panic参考答案:D句意:当这个男孩发现自己被困在火中时,他立刻陷入惊慌中。
get into a panic“陷入惊慌的状态”,符合句意。
河北省邯郸市六校(大名县、磁县等六区县一中)2018-2019学年高二下学期期末联合考试数学(文)试题解析版
邯郸市六校高二年级联合考试数学(文科)考生注意:1.本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分,共150分.考试时间120分钟.2.请将各题答案填写在答题卡上.3.本试卷主要考试内容:选修4-4或4-5,集合与逻辑,函数与导数,三角函数与解三角形.第Ⅰ卷一、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.已知集合{}1,1,3,5,7A =-,(){}2log 3B x y x ==-,则A B =I ( )A. {}1,3,5,7B. {}1,5,7C. {}3,5,7D. {}5,7 【答案】D【解析】【分析】求解集合B ,再利用集合的交集定义求解即可.【详解】∵(){}{}2log 33B x y x x x ==-=>,∴{}5,7A B =I .故选:D .【点睛】本题主要考查了集合的基本运算,难度容易.2.命题“2000(0,),ln 1x x x ∃∈+∞>-”的否定为( )A. 2000(0,),ln 1x x x ∃∈+∞≤-B. 2000(,0],ln 1x x x ∃∈-∞>- C. 2(0,),ln 1x x x ∀∈+∞-„D. 2(,0],ln 1x x x ∀∈-∞>- 【答案】C【解析】【分析】特称命题的否定是全称命题【详解】解:因为特称命题的否定是全称命题,所以,命题“0(0,)x ∃∈+∞,2001lnx x >-”的否定为:(0,)x ∀∈+∞,21lnx x -„.【点睛】本题考查含有一个量词的命题的否定,属于基础题.3.在()0,2π内,与角53π-终边相同的角是( ) A. 56π B. 3π C. 53π D. 43π 【答案】B【解析】【分析】利用终边相同的角的定义直接求解. 【详解】解:与角53π-终边相同的角是52,3k k Z ππ-+∈.令1k =,可得与角53π-终边相同的角是3π. 故选:B【点睛】本题考查终边相同的角的求法,考查终边相同的角的定义等基础知识,考查运算求解能力,属于基础题.4.已知233log 6,log 2,log 6a b c ===,则( )A. a b c <<B. b c a <<C. a c b <<D. c b a << 【答案】B【解析】【分析】用1,2对,,a b c 三个数进行分段,由此得出正确选项.【详解】因为()()()233log 62,,log 20,1,log 61,2a b c =∈+∞=∈=∈,所以b c a <<.故选B.【点睛】本小题主要考查对数式比较大小,主要的方法是分段法,即三个数处于不同的区间内,由此来判断三个数的大小关系,属于基础题.5.已知函数2()2ln f x x a x x =--在12x =处取得极值,则()f x 的图象在()1,0处的切线方程为( ) A. 10x y +-=B. 220x y +-=C. 10x y --=D. 220x y --=【答案】A【解析】求出()f x ',因为函数在12x =处取得极值得到1()02f '=,解出a 的值即可得到()f x '的解析式,然后求出()1f '即得到切线的斜率,写出切线方程即可; 【详解】解:22()2a f x x x '=+-Q ,1()28202f a '∴=+-=. 解得5a =,225()2f x x x '∴=+-,于是(1)1f '=-, 可得()f x 的图象在()1,0处的切线方程为()01y x -=--.即10x y +-=.故选:A【点睛】本题考查学生会利用导数研究函数的极值和切线方程的求法,属于基础题.6.在ABC V 中,角A ,B ,C 所对的边分别是a ,b ,c ,若角A ,C ,B 成等差数列,且2sin sin sin C A B =,则ABC V 的形状为( )A. 直角三角形B. 等腰非等边三角形C. 等边三角形D. 钝角三角形【答案】C【解析】【分析】由已知利用等差数列的性质可得60C =︒,由正弦定理可得2c ab =,根据余弦定理可求a b =,即可判断三角形的形状.【详解】解:由题意可知,60C =︒,因为2sin sin sin C A B =,所以2c ab =,则222222cos c a b ab C a b ab ab =+-=+-=,所以a b =,所以a b c ==,故ABC ∆为等边三角形.【点睛】本题主要考查了等差数列的性质,正弦定理,余弦定理在解三角形中的应用,考查了转化思想,属于基础题.7.在ABC V 中a ,b ,c 分别是角A ,B ,C 所对的边,sin B =,3==b c ,则ABC V 的面积为( )A. 3B. 2C.D. 【答案】D【解析】【分析】由题意利用同角三角函数的基本关系求得cos B 的值,再利用诱导公式、两角和的正弦公式求出sin sin()A B C =+的值,可得ABC ∆的面积为1sin 2bc A g g 的值.【详解】解:因为b c =,所以02B π<<,因为sin B =,所以cos 3=B ,sin sin()sin 22sin cos 3A B C B B B ∴=+===则11sin 3322ABC S bc A ∆==⨯⨯=故选:D【点睛】本题主要考查同角三角函数的基本关系、诱导公式、两角和的正弦公式,属于基础题.8.若,a b ∈R ,且0ab ≠,则“11()()22a b >”是“方程221x y a b+=表示焦点在y 轴上的椭圆”的( ) A. 充分不必要条件B. 必要不充分条件C. 充要条件D. 既不充分也不必要条件【答案】B【解析】【分析】由指数函数的单调性可得a b <;由椭圆方程可得0a b <<,再由充分必要条件的定义,即可得到所求结论. 【详解】解:若1122a b ⎛⎫⎛⎫> ⎪ ⎪⎝⎭⎝⎭,则a b <, 若方程221x y a b+=表示焦点在y 轴上的椭圆,则0b a >>, 即“1122a b ⎛⎫⎛⎫> ⎪ ⎪⎝⎭⎝⎭”是“方程221x y a b +=表示焦点在y 轴上的椭圆”的必要不充分条件. 故选:B【点睛】本题考查指数函数的单调性以及椭圆方程,考查充分必要条件的定义,考查推理能力,属于基础题.9.将函数()cos y x π=+的图象向左平移3π个单位长度,然后将各点的横坐标伸长到原来的2倍(纵坐标不变),所得函数图象的对称中心为( ) A. ()2,03k k ππ⎛⎫+∈ ⎪⎝⎭Z B. ()2,04k k ππ⎛⎫+∈ ⎪⎝⎭Z C. ()2,02k k ππ⎛⎫+∈ ⎪⎝⎭Z D. ()()2,0k k ππ+∈Z【答案】A【解析】【分析】 根据题意利用诱导公式化简, 进行先平移再伸缩的变换,即可得到1cos 23y x π⎛⎫=-+⎪⎝⎭,利用余弦函数的图象和性质即可解得. 【详解】将函数()cos cos y x x π=+=-的图象向左平移3π个单位长度得到cos 3y x π⎛⎫=-+ ⎪⎝⎭的图象,然后各点的横坐标伸长到原来的2倍(纵坐标不变),得到1cos 23y x π⎛⎫=-+ ⎪⎝⎭的图象,令()1232x k k πππ+=+∈Z ,得()23x k k ππ=+∈Z ,所以对称中心为()2,03k k ππ⎛⎫+∈ ⎪⎝⎭Z . 故选:A .【点睛】本题考查了诱导公式化简函数解析式,考查了三角函数的图象的变换与性质,难度较易.10.已知命题()0:0,p x ∃∈+∞,00122019x x +=;命题:q 在ABC ∆中,若sin sin A B >,则cos cos A B <.下列命题为真命题的是( ) A. p q ∧B. ()p q ∨⌝C. ()()p q ⌝∨⌝D. ()p q ∧⌝ 【答案】C【解析】【分析】判断出命题p 、q 的真假,即可判断出各选项中命题的真假,进而可得出结论.【详解】Q 函数()2x f x x =+在()0,+∞上单调递增,()()1012019f x f ∴>=>,即命题p 是假命题; 又sin sin A B >Q ,根据正弦定理知a b >,可得A B >,余弦函数cos y x =在()0,π上单调递减,cos cos A B ∴<,即命题q 是真命题.综上,可知()()p q ⌝∨⌝真命题,p q ∧、()p q ∨⌝、()p q ∧⌝为假命题. 故选:C.【点睛】本题考查复合命题真假的判断,解答的关键就是判断出各简单命题的真假,考查推理能力,属于中等题.11.函数()2log ,0,2,0,x x x f x x ⎧>=⎨≤⎩则函数()()()2384g x f x f x =-+的零点个数是( ) A. 5B. 4C. 3D. 6 【答案】A【解析】【分析】通过对()g x 式子的分析,把求零点个数转化成求方程的根,结合图象,数形结合得到根的个数,即可得到零点个数.【详解】函数()()()2384g x fx f x =-+=()()322f x f x --⎡⎤⎡⎤⎣⎦⎣⎦的零点 即方程()23f x =和()2f x =的根, 函数()2log ,0,2,0x x x f x x ⎧>=⎨≤⎩的图象如图所示:由图可得方程()23f x =和()2f x =共有5个根, 即函数()()()2384g x fx f x =-+有5个零点,故选A . 【点睛】本题考查函数的零点与方程的根的个数的关系,注意结合图象,利用数形结合求得结果时作图很关键,要标准.12.已知函数xy me =的图象与直线2y x m =+有两个交点,则m 的取值范围是( ) A. ()0,∞+B. (),0-∞C. ()0,1D. 1(0,)e【答案】A【解析】【分析】 两个函数图象的交点个数问题,转化为方程有两个不同的根,再转化为函数零点问题,设出函数,求单调区间,分类讨论,求出符合题意的范围即可.【详解】解:函数x y me =的图象与直线2y x m =+有两个交点可转化为函数()e 2x f x m x m =--有两个零点,导函数为()e 1x f x m '=-, 当0m ≤时,()0f x '<恒成立,函数()f x 在R 上单调递减,不可能有两个零点; 当0m >时,令()0f x '=,可得ln x m =-, 函数在(),ln m -∞-上单调递减,在,)ln (m -+∞上单调递增, 所以()f x 的最小值为()ln 1ln 2f m m m -=+-. 令()()1ln 20g m m m m =+->, 则1()2mg m =-',所以()g m 在1(0,)2上单调递增,在1(,)2+∞上单调递减.所以max 1()()ln 202g m g ==-<.所以()f x 的最小值()ln 0f m -≤,则m 的取值范围是(0,)+∞.故选:A【点睛】本题考查函数零点问题,利用方程思想转化与导数求解是解决本题的关键,属于中档偏难题. 第Ⅱ卷二、填空题:本大题共4小题,每小题5分,共20分.把答案填在答题卡中的横线上. 13.已知函数()f x 的定义域为[]1,1-,则函数()1f x -的定义域是_________.【答案】[]0,2【解析】【分析】由题意可得出111x -≤-≤,进而可解得函数()1y f x =-的定义域.【详解】由题意可得出111x -≤-≤,解得02x ≤≤.因此,函数()1y f x =-定义域为[]0,2.故答案为:[]0,2. 【点睛】本题考查抽象函数定义域的求解,求解抽象函数定义域时要注意以下两点:(1)中间变量取值范围一致;(2)定义域为自变量的取值范围.考查计算能力,属于基础题.14.若函数()32221x x f x x a =++-有两个极值点,则a 的取值范围是_________.【答案】⎛ ⎝⎭【解析】【分析】由题意得出()2234f x x x a '=++有两个零点,可得出>0∆,进而可求得实数a 的取值范围. 【详解】因为()32221x x f x x a =++-,所以()2234f x x x a '=++. 又因为函数()y f x =有两个极值点,所以函数()2234f x x x a '=++有两个零点, 则216120a ∆=->,解得a <<.因此,实数a 的取值范围是,33⎛- ⎝⎭.故答案为:33⎛- ⎝⎭. 【点睛】本题考查利用函数的极值点个数求参数,解题时要理解函数的极值点与导函数零点之间的关系,考查计算能力,属于基础题.15.已知一扇形的面积是8cm 2,周长是12cm ,则该扇形的圆心角α(0<α<π)的弧度数是_______【答案】1【解析】【分析】设半径为rcm ,则212r r α+=,2182r α=,可解出对答案.【详解】设半径为rcm ,则212r r α+=,2182r α=,由212r r α+=有122r r α=-代入2182r α=有: 1(122)82r r -=,解得2r = 或4r =, 当2r =时,=4α,当4r =时,=1α,又0απ<<,所以=1α.故答案为:1【点睛】本题考查扇形的面积,弧度制公式等,属于容易题.16.在ABC V 中,a ,b ,c 分别是角A ,B ,C 所对的边,且()2cos cos 0a b C c B ++=,则sin sin A B ⋅的最大值为_________. 【答案】14【解析】分析】()2cos cos 0a b C c B ++=利用正弦定理边化角化简可求得23C π=,则有3A B π+=,则11sin sin sin sin sin 23264A B A A A ππ⎛⎫⎛⎫⋅=⋅-=+- ⎪ ⎪⎝⎭⎝⎭借助正弦函数图象和性质即可求出.【详解】因为()()2cos cos 2sin cos sin 20a b C c B A C B C R ++=++⋅=⎡⎤⎣⎦, 所以1cos 2C =-,所以23C π=. 所以11sin sin sin sin sin 23264A B A A A ππ⎛⎫⎛⎫⋅=⋅-=+-⎪ ⎪⎝⎭⎝⎭, 因为03A π<<,所以当6A π=时,sin sin A B ⋅取得最小值14. 故答案为: 14. 【点睛】本题考查正弦定理,三角函数的图象和性质,属于常考题.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.第17~21题为必考题,每道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.17.已知全集U =R ,集合{}2|340A x x x =+-≤,{}|11B x m x m =-≤≤+. (1)若1m =,求()U A B I ð;(2)若B A ⊆,求m 的取值范围.【答案】(1)(){}|40U B A x x =-≤<I ð;(2)[]3,0- 【解析】【分析】(1)分别求出U B ð和A ,再取交集,即可.(2)因为B A ⊆且11m m -<+恒成立,所以1411m m -≥-⎧⎨+≤⎩,解出即可. 【详解】解:(1)若1m =,则{}|02B x x =≤≤,所以{|0U B x x =<ð或}2x >,又因为{}|41A x x =-≤≤,所以(){}|40U B A x x =-≤<I ð .(2)由(1)得,{}|41A x x =-≤≤,又因为B A ⊆,所以1411m m -≥-⎧⎨+≤⎩ ,解得[]3,0m ∈-. 【点睛】本题考查了交、补集的混合运算,考查了利用集合间的关系求参数的取值问题,解答此题的关键是对集合端点值的取舍,是基础题.18.在ABC V 中,a ,b ,c 分别是角A ,B ,C 所对的边,且sin sin sin sin a b C B c A B --=+. (1)求A 的值;(2)若8+=b c ,求ABC V 面积的最大值.【答案】(1)3π;(2)【解析】【分析】(1)由题意利用正弦定理可得222b c a bc +-=,由余弦定理可得1cos 2A =,结合范围(0,)A π∈,可得A 的值.(2)由基本不等式可求16bc …,利用三角形的面积公式即可求解.【详解】解:(1)由题知()()()sin sin sin sin A B a b C B c +-=-,由正弦定理有()()()a b a b c b c +-=-,即222b c a bc +-=, 由余弦定理得2221cos 222b c a bc A bc bc +-===,因为()0,A π∈ 则3A π=.(2)8b c +=≥Q ,8∴≤,即16bc ≤,当且仅当4b c ==时等号成立,当4b c ==时,11sin 16222ABC S bc A ==⨯⨯=V ,所以ABC V 面积的最大值为【点睛】本题主要考查了正弦定理,余弦定理,基本不等式,三角形的面积公式在解三角形中的综合应用,考查了计算能力和转化思想,属于基础题.19.已知函数()sin 23f x x π⎛⎫=+ ⎪⎝⎭. (1)()f x 的最小正周期及单调递增区间;(2)当,36x ππ⎡⎤∈-⎢⎥⎣⎦时,求()f x 的最小值.【答案】(1)π,()5,1212k k k Z ππππ⎡⎤-++∈⎢⎥⎣⎦;(2) 【解析】【分析】(1)由题意利用正弦函数的周期性、单调性,求得()f x 的最小正周期及单调递增区间.(2)由题意利用正弦函数的定义域和值域,求得当,36x ππ⎡⎤∈-⎢⎥⎣⎦时,()f x 的最小值. 【详解】解:(1)最小正周期为22T ππ==. 令()222232k x k k πππππ-+≤+≤+∈Z , 得()51212k x k k ππππ-+≤≤+∈Z ,… 所以()f x 的单调递增区间为()5,1212k k k ππππ⎡⎤-++∈⎢⎥⎣⎦Z . (2)因为,36x ππ⎡⎤∈-⎢⎥⎣⎦,所以22333x πππ-≤+≤,所以sin 2sin 33x ππ⎛⎫⎛⎫+≥-= ⎪ ⎪⎝⎭⎝⎭所以()sin 232f x x π⎛⎫=+-≥ ⎪⎝⎭所以()f x 的最小值为【点睛】本题主要考查正弦函数的周期性、单调性,正弦函数的定义域和值域,属于基础题.20.已知()1222x x a f x ++=-是其定义域上的奇函数. (1)求()f x 的解析式;(2)若()()225228f t f t t -->-+-,求t 的取值范围.【答案】(1)()12122x x f x ++=-(2)1t >或3t <-. 【解析】【分析】(1)先求得函数的定义域,根据()()110f f -+=列方程,解方程求得a 的值,进而求得函数解析式.(2)先判断树函数的单调性,然后根据单调性将不等式()()225228f tf t t -->-+-的函数符号去掉,再解不等式求得t 的取值范围.【详解】解:(1)因为()f x 是奇函数,其定义域为()(),00,-∞⋃+∞,所以()()110f f -+=,即122012a a +++=-, 所以1a =,经检验,1a =符合题意.所以()12122x x f x ++=-. (2)由(1)知()1211122212x x x f x ++==+--,因为函数2x y =在R 上是增函数, 所以()f x 在(),0-∞上单调递减,因为22520,280t t t --<-+-<,所以225228t t t --<-+-,解得1t >或3t <-.【点睛】本小题主要考查函数的奇偶性,考查利用函数的单调性解函数不等式,属于中档题.21.已知函数21()(1)ln 2f x x a x a x =-++. (1)当0a <时,求()f x 的最小值;(2)当0a >时,讨论()f x 的单调性;(3)若不等式22()(1)22a x f x a x x e ++≥++-对1,x e e ⎡⎤∈⎢⎥⎣⎦恒成立,求正数a 的取值范围. 【答案】(1)12a --;(2)见解析;(3)(]0,2 【解析】【分析】(1)求函数的导数,当0a <时,分类讨论函数的单调区间可求()f x 的最小值;(2)由(1)当0a >时,分类讨论a 也可求得()f x 的单调性; (3)若不等式22()(1)22a x f x a x x e ++++-…对1,x e e ⎡⎤∈⎢⎥⎣⎦恒成立,将原问题等价于对任意的1,x e e ⎡⎤∈⎢⎥⎣⎦有22a x alnx e --„成立,设()a g x x alnx =-,1,x e e ⎡⎤∈⎢⎥⎣⎦,0a >,求函数的最值从而可求正数a 的取值范围. 【详解】解:2(1)(1)()()1a x a x a x x a f x x a x x x-++--'=--+== (1)当0a <时,()0,1x ∈,()0f x '<,()f x ()0,1上单调递减;()1,x ∈+∞,()0f x '>,()f x 在(1,)+∞上单调递增,所以()f x 的最小值为1(1)2f a =--. (2)①当1a =时,()0f x '≥,()f x 在(0,)+∞上单调递增.②当01a <<时,()0,x a ∈,()0f x '>.()f x 在()0,a 上单调递增;(),1x a ∈,()0f x '<,()f x 在(),1a 上单调递减;()1,x ∈+∞,()0f x '>,()f x 在(1,)∞+上单调递增.③当1a >时,()0,1x ∈,()0f x '>,()f x 在()0,1上单调递增;()1,x a ∈,()0f x '<,()f x 在()1,a 上单调递减;(),x a ∈+∞,()0f x '>,()f x 在(,)a +∞上单调递增.(3)原问题等价于对任意的1,x e e⎡⎤∈⎢⎥⎣⎦有2ln 2a x a x e -≤-成立. 设1()ln ,,,0a g x x a x x e a e ⎡⎤=-∈>⎢⎥⎣⎦, 1(1)()a a a a x g x ax x x--'=-+=. 令()0g x '<,得01x <<;令()0g x '>,得1x >.所以函数()f x 在1[,1)e 上单调递减,在(]1,e 上单调递增,max ()g x 为1()a g a e e-=+与()a g e a e =-+中的较大者, 设1()()()2(0)a a h a g e g e e a a e -=-=-->,()220a a h a e e -'=+->=,所以()h a 在()0,∞+上单调递增.故()()00h a h >=,即1()()g e g e>,从而max ()()g x g e a e α==-+,故22a a e e -+≤-,即220a e a e --+≤.设()()220a a e a e a ϕ=--+>,则有()10a a e ϕ'=->, 所以()a ϕ在(0,)∞+上单调递增,又因为()20ϕ=,所以2202a e a e a --+≤⇔≤,因为0a >,所以a 的取值范围为(]0,2.【点睛】本题考查了导数的综合应用及恒成立问题,考查构造新函数,函数的单调性与利用函数单调性求最值,属于中档题.22.在直角坐标系xOy 中,斜率为k 的动直线l 过点()6,0,以坐标原点O 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=.(1)若直线l 与曲线C 有两个交点,求这两个交点的中点P 的轨迹1C 关于参数k 的参数方程; (2)在条件(1)下,求曲线1C 的长度. 【答案】(1)22262,13341k x k k ky k ⎧+=⎪⎛⎫⎪+-<< ⎪⎨ ⎪-⎝⎭⎪=⎪+⎩;(2)43π 【解析】【分析】(1)把4cos ρθ=两边同时乘以ρ,然后结合极坐标与直角坐标的互化公式可得曲线C 的直角坐标方程,设直线l 的方程为(6)y k x =-,与曲线C 联立,利用根与系数的关系可得两个交点的中点P 的轨迹1C 关于参数k 的参数方程;(2)化参数方程为普通方程,作出图形,数形结合即可求得曲线1C 的长度.【详解】解:(1)曲线C 的直角坐标方程为2240x y x +-=.设直线l 的方程为()6y k x =-,设直线l 与曲线C 的交点为()11,A x y ,()22,B x y ,联立直线l 与曲线C 的方程得()226,40,y k x x y x ⎧=-⎨+-=⎩解得()()22221124360k x k x k +-++=,21221241k x x k ++=+, ()()222212441360k k k ∆=+-+⋅>,3333k -<<, 设P 的坐标为(),x y ,则21226221x x k x k++==+,代入l 的方程得241k y k -=+. 故1C 的参数方程为22262,33141k x k k ky k ⎧+=⎪⎛⎫⎪+-<< ⎪⎨ ⎪-⎝⎭⎪=⎪+⎩. (2)由1C 的参数方程22262,14,1k x k k y k ⎧+=⎪⎪+⎨-⎪=⎪+⎩得222224,14,1k x k k y k ⎧--=⎪⎪+⎨-⎪=⎪+⎩即()2244x y -+=.如图,圆C :圆心为()2,0,半径为2,圆D :圆心为()4,0,半径为2,曲线1C 为劣弧¼NCM,显然23MDN π∠=, 所以1C 的长度为43π. 【点睛】本题考查简单曲线的极坐标方程,考查参数方程化普通方程,考查圆与圆位置关系的应用,考查计算能力,属于中档题.23.已知函数()()214f x a x x =+---.(1)当1a =时,解不等式()8f x x >+;(2)关于x 的不等式()24f x x x a >-++的解集包含区间[]1,2-,求a 的取值范围. 【答案】(1)()(),37,-∞-+∞U ;(2)11a -<<【解析】【分析】(1)将1a =代入()f x 中去绝对值后写为分段函数的形式,然后根据()8f x x >+分别解不等式即可; (2)根据题意可知[]1,2x ∀∈-,2()|4|f x x x a >-++恒成立,然后将问题转化2(2)|1||1|1a x x a +->-+-对[]1,2x ∀∈-恒成立,令|1|t x =-,再构造函数2()(2)1g t t a t a =-++-,[0t ∈,2],根据(0)10(2)42410g a g a a =-<⎧⎨=--+-<⎩解出a 的范围. 【详解】解:(1)3148x x x --->+,①当1x <时,3348x x x -+->+,解得3x <-,所以3x <-;②当14x ≤≤时,3348x x x -+->+,解得5x >,所以x ∈∅;③当4x >时,解得7x >,所以7x >.综上所述,不等式的解集为()(),37,-∞-+∞U .(2)依题意得[]1,2x ∀∈-,()24f x x x a >-++恒成立, 即()22144a x x x x a +--->-++, 即()2212a x x x a +->-+, 即()()22111a x x a +->-+-,即()22111a x x a +->-+-. 令1t x =-,则[]0,2t ∈,即[]0,2t ∀∈,()221a t t a +>+-恒成立, 即()2210t a t a -++-<, 构造函数()()221g t t a t a =-++-, 则()()010,242410,g a g a a ⎧=-<⎪⎨=--+-<⎪⎩解得11a -<<.【点睛】本题考查了解绝对值不等式和不等式恒成立问题,考查了分类讨论思想和转化思想,考查了计算能力,属于中档题.。
河北省邯郸市六校近年-近年学年高二生物下学期期末考试试题(含解析)(最新整理)
D、水光解产生的[H]和ATP将固定的CO2还原成C5和(CH2O),ATP中活跃的化学能会转化为有机物中稳定的化学能,D正确。
故选C。
【点睛】有氧呼吸中水在第二阶段参与反应,在第三阶段有水生成。
8。下列有关生物体内酶和激素的叙述,错误的是( )
A。 酶和激素都是在特定细胞的核糖体上合成的
A。 溶酶体是由双层膜包被的细胞器
B. 高尔基体能对蛋白质进行加工、分类和包装
C. 内质网与脂质的合成密切相关
D. 核膜通过内质网与细胞膜相连
【答案】A
【解析】
【分析】
生物膜系统包括细胞膜、细胞器膜和核膜。
【详解】A、溶酶体是由单层膜包被的பைடு நூலகம்胞器,A错误;
B、高尔基体能对蛋白质进行加工、分类和包装,B正确;
D、叶绿体DNA存在于叶绿体基质中,能进行表达和复制,D正确.
故选D。
【点睛】易错点:细胞无论吸水还是失水,水分子均有进有出。
7。水在生物体有多种功能。下列关于水的叙述,错误的是( )
A。 细胞中的水主要以自由水的形式存在
B。 合成多肽链时,生成的水中的氢来自氨基和羧基
C。 有氧呼吸的第二阶段有水生成
A。 三者都存在于蓝藻中
B. 三者都含有DNA
C. 三者都是ATP合成的场所
D。 三者的膜结构中都含有蛋白质
【答案】D
【解析】
【分析】
本题主要考查细胞中不同细胞器的结构功能,其中高尔基体是具有单层膜的细胞器,在动植物细胞中功能不同;线粒体和叶绿体都是具有双层膜的细胞器,前者是有氧呼吸的主要场所,后者是光合作用的场所。
C、内质网参与脂质的合成及蛋白质的加工,C正确;
河北省邯郸市六校(大名县、磁县等六区县一中)2018-2019学年高二下学期期末联合考试数学(文)答案
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河北省邯郸市六校(大名县、磁县等六区县一中)2018-2019学年高二下学期期末联合考试政治答案
2019年河北省邯郸市磁县第一中学高二数学文下学期期末试卷含解析
2019年河北省邯郸市磁县第一中学高二数学文下学期期末试卷含解析一、选择题:本大题共10小题,每小题5分,共50分。
在每小题给出的四个选项中,只有是一个符合题目要求的1. 欧拉公式(e为自然对数的底数,i为虚数单位)是瑞士著名数学家欧拉发明的,是英国科学期刊《物理世界》评选出的十大最伟大的公式之一.根据欧拉公式可知,复数虚部为()A. B. C. D.参考答案:B【分析】根据题意代入化简即得复数,再根据虚部概念得结果【详解】根据欧拉公式,可得,∴的虚部为.故选:B.【点睛】本题考查复数运算以及概念,考查基本分析求解能力,属基础题.2. 已知函数f(x)=x2+ax-2b.若a,b都是区间[0,4]内的数,则使f(1)>0成立的概率是A. B. C.D.参考答案:C3. 年劳动生产率x(千元)和工人工资y(元)之间的回归方程为,这意味着年劳动生产率每年提高1千元时,工人工资平均()A.增加80元B.减少80元C.增加70元D.减少70元参考答案:C4. 已知i是虚数单位,若复数z满足,则z的虚部为()A. -1B. -3iC. 1D. -3参考答案:D【分析】利用复数代数形式的乘除运算可得z=1﹣3 i,从而可得答案.【详解】,∴复数z的虚部是-3故选:D【点睛】本题考查复数代数形式的乘除运算,属于基础题.5. 数码中有奇数个9的2007位十进制数的个数为()A. B.C. D.参考答案:B 解析:出现奇数个9的十进制数个数有.又由于以及,从而得6. 已知函数R),则下列错误的是()A.若,则在R上单调递减B.若在R上单调递减,则C.若,则在R上只有一个零点D.若在R上只有一个零点,则参考答案:D略7. 设定义在上的函数的导函数满足,则()A.B.C.D.参考答案:A由题意得构造函数,在上0,所以在上单调递增,所以,即选A.8. 从甲乙两个城市分别随机抽取16台自动售货机,对其销售额进行统计,统计数据用茎叶图表示(如图所示),设甲乙两组数据的平均数分别为,,中位数分别为m甲,m乙,则()A.,m甲>m乙B.,m甲<m乙C.,m甲>m乙D.,m甲<m乙参考答案:B【考点】茎叶图;众数、中位数、平均数.【分析】直接求出甲与乙的平均数,以及甲与乙的中位数,即可得到选项.【解答】解:甲的平均数甲==,乙的平均数乙==,所以甲<乙.甲的中位数为20,乙的中位数为29,所以m甲<m乙故选:B.9. 抛物线的焦点到双曲线的渐近线的距离为( )A. B. C. D .参考答案:A略10. “m=-1”是“mx+(2m-1)y+2=0”与直线“3x+my+3=0”垂直的()A.充分而不必要条件B.必要而不充分条件C.充要条件D.既不充分也不必要条件参考答案:A二、填空题:本大题共7小题,每小题4分,共28分11. 已知两点A(1,2,3),B(2,1,2),P(1,1,2)点Q在直线OP上运动,则当取得最小值时,Q点的坐标.参考答案:【考点】空间向量的数量积运算.【专题】计算题.【分析】可先设Q(x,y,z),由点Q在直线OP上可得Q(λ,λ,2λ),则由向量的数量积的坐标表示可求,然后根据二次函数的性质可求,取得最小值时的λ,进而可求Q【解答】解:设Q(x,y,z)∵A(1,2,3),(2,1,2),P(1,1,2),则由点Q在直线OP上可得存在实数λ使得=(λ,λ,2λ)则Q(λ,λ,2λ)=(1﹣λ,2﹣λ,3﹣2λ),=(2﹣λ,1﹣λ,2﹣2λ)∴=(1﹣λ)(2﹣λ)+(2﹣λ)(1﹣λ)+(3﹣2λ)(2﹣2λ)=2(3λ2﹣8λ+5)根据二次函数的性质可得当λ=时,取得最小值﹣此时Q()故答案为:()【点评】本题考查的知识点是空间向量的数量积运算,其中根据空间向量数量积的坐标运算公式,求出的表达式,进而将问题转化为一个二次函数最值问题,是解答本题的关键.12. 双曲线﹣=1的离心率为,则m等于.参考答案:9【考点】双曲线的简单性质.【分析】利用双曲线的离心率计算公式即可得出.【解答】解:∵双曲线可得a2=16,b2=m,又离心率为,则,解得m=9.故答案为9.13. 圆心在直线y=﹣4x上,并且与直线l:x+y﹣1=0相切于点P(3,﹣2)的圆的方程为.参考答案:(x﹣1)2+(y+4)2=8【考点】圆的标准方程.【专题】计算题.【分析】设出圆心坐标,利用直线与圆相切,求出x的值,然后求出半径,即可得到圆的方程.【解答】解:设圆心O为(x,﹣4x) k op=k L=﹣1 又相切∴k op?k L=﹣1∴x=1∴O(1,﹣4)r==所以所求圆方程为(x﹣1)2+(y+4)2=8.故答案为:(x﹣1)2+(y+4)2=8.【点评】本题是基础题,考查圆的方程的求法,直线与圆的位置关系,考查计算能力.14. 已知椭圆()的左右焦点分别为,,过点F2且斜率为的直线l交直线于M,若M在以线段F1F2为直径的圆上,则椭圆的离心率为__________.参考答案:【分析】写出直线的方程,将直线的方程与直线联立求出点的坐标,由题意得出,可解出,然后利用离心率公式可求得结果.【详解】设直线的方程为,联立,解得,即点的坐标为,因为在以线段为直径的圆上,所以,有,则,解得,则椭圆的离心率为.故答案为:.【点睛】在解析几何问题中常常会遇见这样的问题:“点在以为直径的圆上”,常用的处理方法有两个:一是转成向量的数量积为,坐标化处理;二是转成斜率乘积为.15. 如图,矩形与矩形所在的平面互相垂直,将沿翻折,翻折后的点E恰与BC上的点P重合.设,,,则当_____▲_____时,有最小值.参考答案:16. 如图所示,将数以斜线作如下分群:(1),(2,3),(4,6,5),(8,12,10,7),(16,24,20,14,9),… 并顺次称其为第1群,第2群,第3群,第4群,…。
河北省邯郸市六校2018-2019学年高二英语下学期期末联合考试试题(含解析).doc
河北省邯郸市六校2018-2019学年高二英语下学期期末联合考试试题(含解析)考生注意:1. 本试卷共150分,考试时间120分钟。
2. 请将各题答案填写在答题卡上。
第一部分听力(共两节,满分30分)做题时请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涂到答题卡上。
第一节(共5小题;每小题1. 5分,满分7. 5分)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.【此处有音频,请去附件查看】At what time this Saturday afternoon will Paul be free?A. 3 o'clock.B. 4 o'clock.C. 5 o'clock.【答案】A【解析】【分析】W: Paul, will you be free this Saturday to check my computer? It hasn’t been working for two days.M: Let me see. I have an appointment with Ellen at four o’clock in the afternoon, but I will be free before that.【详解】此为听力题,解析略。
2.【此处有音频,请去附件查看】What is the weather like now?A. Fine.B. Hot.C. Rainy.【答案】C【解析】【分析】W: What bad weather!M: Don’t worry. The rain won’t last long. The radio says it’ll be fine later on. 【详解】此为听力题,解析略。
河北省邯郸市下册第二学期高二期末联考语文试卷【精品】
河北省邯郸市2019-2020学年下学期高二期末联考语文一、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。
“音象”,是对中国文学中声音之象的泛称,是指文学(诗歌)作品在音乐或格律的参与下形成的声音效果,以及由声音效果产生的形象体验。
与之相对,“诗象”用于指称依靠文字内容而产生的主体想象和认知。
“音象”与“诗象”是构成文学“意象”的基石,充分剖析作为“意象”重要维度的“音象”,有助于全面认知“意象”概念。
魏晋之前,“音象”主要以“乐象”为存在形态,到了唐代,建构在音律或格律基础上的整体音响效果及形象体验,是“音象”存在形态之一。
就此种“音象”而言,音乐或格律的运用会使作品形成一种独特的氛围或气质,从而在整体上营造出与众不同的声音效果。
对入乐性作品;说,这种整体效果主要借助音乐的曲调、节奏、旋律;实现;对不入乐作品;说,则主要以语辞的韵律性和音乐性;体现。
配乐而歌是中国古代音乐文学的最典型形态,对唐代而言,以齐言歌诗和杂言曲辞最具代表性。
;看王维的《送元二使安西》:“渭城朝雨浥轻尘,客舍青青柳色新。
劝君更尽一杯酒,西出阳关无故人。
”据考证,该诗配乐歌唱之事实是确定无疑的。
王维诗的立意在送别,故此可以推断与之相配的音乐也应当以感伤的基调为主,即便是先有辞,然后才根据意境产生了曲,但音乐由回环的旋律而产生的“三叠”的唱法,对诗意的升华无疑是有重要作用的,从而使渭城清雨与阳关漫道、绿柳垂杨与大漠孤烟的形象对比更为突出,惜别之情跃然纸上。
唐代入乐性作品,还包括很多杂言曲辞。
各种民间谣辞、酒令、琴歌,甚至是佛教俗讲,都往往凭借音乐深入人心,加以传播。
很显然,吟唱之声的婉转动听,在人们接受文意、领会经旨的过程中发挥了至关重要的作用,虽然此时音乐产生的“音象”可能是模糊的,但它相当于一个朦胧的场域,与文字层面的“诗象”相结合,从而使“意象”意义获得彰显。
如果说,入乐性的歌诗由于与音乐保持着密切的关系,从而使得“音象”的作用较为突出,那么下面就;考察不入乐的徒诗“格律”中蕴含的“音象”潜能。
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邯郸市六校高二年级联合考试英语考生注意:1.本试卷共150分,考试时间120分钟。
2. 请将各题答案填写在答题卡上。
第一部分听力(共两节,满分30分)做题时请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涂到答题卡上。
第一节(共5小题;每小题1. 5分,满分7. 5分)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. At what time this Saturday afternoon will Paul be free?A. 3 o'clock.B. 4 o'clock.C. 5 o'clock.2. What is the weather like now?A. Fine.B. Hot,C. Rainy.3. What's the man's opinion about the job?A. Boring.B. Relaxing.C. Challenging.4. What is the man's suggestion?A. To calm down.B. To change the flight.C. To make a call.5. How will the two speakers probably arrange their weekend?A.They will go to the library.B.They will stay at home.C.They will go shopping.第二节(共15小题;每小题1.5分,满分22. 5分)听下面5段对话或独白。
每段对话或独白后有几个小题,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。
听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间。
每段对话或独白读两遍。
听第6段材料,回答第6、7题。
6.Why is Zhang Ling going to the UK?A. To visit a relative.B. To study.C. To travel.7. At what time does the plane leave?A. 10:00 pm.B. 9: 45 pm.C. 10: 15 pm.听第7段材料,回答第8、9题。
8. How old is the man!s niece now?A. Five years old.B. Six years old.C. Eleven years old.9. What is the big problem for the girl?A. Accepting the family's love.B. Getting used to the weather.C. Catching up with her classmates.听第8段材料,回答第10至12题。
10. What does the man want to do?A. Buy a taxi for a living.B. Reserve a taxi.C. Go to work by taxi.11. What day is it today according to the conversation?A・ Monday・ B. Sunday・ C. Saturday.12. At what time does the man want the taxi?A. 6 :00 am.B. 6: 20 am.C. 6: 30 am.听第9段材料,回答第13至16题。
13. What happened to the man?A.He got an offer of a new job.B.He lost his job.C.He closed his company.14. Why is the woman worried?A.The man won't be able to pay the rent.B.Her business isn't going well.C.The man doesn't like to work.15. Where did the man use to work?A.At a coffee house.B. At a sandwich s hop.C. At a theater.16. What does the woman suggest the man do?A. Run a business.B. Live w ith her.C. Work for her.听第10段材料,回答第17至20题。
17. What is TaskRabbit?A.A communication company.B.A service company.C.A community management company.18. What could a TaskRabbit worker do?A.Find you a job to do.B.Lend you money for rent.C.Help you pick up your cake.19. Who founded the company TaskRabbit?A. Leah Busque.B. Sally.C. A Tasker.20. Why did the boss found TaskRabbit?A.To earn much money.B.To offer more jobs.C.To let neighbours help each other.第二部分阅读理解(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,从每题所给的A、B、C和D四个选项中,选出最佳选项。
ANoticeDate: February 8, 2019To: All community membersFrom: Steven Bay,director of the community committeeSubject: Paving project in Hyde Parking Lot next to Building FWe would like to remind you that the work is about to begin on the repair of Hyde Parking Lot, to be completed by late September. The paving project will occur in stage. The first stage of the project will begin in mid-March. Please move your car from the parking lot by February 28. The restricted area will be marked and cars parked in the closed area will be pulled away.The second stage is expected to begin as early as June with the aim of spreading asphalt (沥青)and repairing damaged parking lot areas next to Building F・ During this time, it is probable that . the repair will - cause a certain degree of disruption(混乱) to our community. There will be more traffic jams for the next coming 4 months as several streets and entrances will be temporarily closed as paving progresses.However, every effort will be made to minimize this disruption. Plans have been made to provide traffic advice during the repair. For more information, please contact Kevin Johnson ((ext. 5894, kevinjohnson@community. com))).Should these time lines change in any way as this work progresses, we will keep the community informed. Your cooperation, and patience is appreciated during this time.21. What's the author's purpose in writing the text?A. To investigate a new construction.B. To revise the schedule for a project.C. To announce a possible inconvenience.D. To en courage parking in Hyde Parking Lot.22. When is the first stage of the project expected to begin?A. On February 28.B. On March 1.C. On September 29.D. On March 16.23. What does the second stage of the project include?A. Repairing Building F.B. Completing another road.C. Covering and fixing the ground.D. Building a parking lot entrance・BBy day a Cairo dentist and by night a novelist, he spent years struggling to get published. Today, Alaa Al Aswany is a best-selling writer across the globe.Aswany was born in Cairo in 1957. His father was also a novelist, who won the state award for literature in 1972. "He was my first professor of literature. He told me what to read and what not to read," said Aswany, who had a traditional French education and then went to Chicago to study for his dentistry degree.In 2002, his novel The Yacoubian Building, was quietly accepted by a small, independ-ent publisher in Cairo. Its first, edition sold out in four weeks and it was the Arab world's best-seller for five successive years, selling 250,000 copies in a region where print runs seldom go beyond 3,000. Word spread quickly, people talked about it. It was made into a hit film and a TV serial, and has since been translated into 27 languages.Aswany said, "Society is a living organism and you must keep up. That's why I still practise, though for only two days a week. I will never close the clinic (诊所). The clinic is my window. I open it to see what is happening in the street. You can't get disconnected from the street, as a writer;that's a common mistake. You can be too easily welcomed every night by the richest people and the most influential. It is very dangerous because it is that relationship with the street that made you successful in the first place."24. What role did Aswany's father play in his writing career?A. He aroused his interest in literature・B. He taught him French in college.C. He read him novels as a rewardD. He sent him to Chicago to learn literature.25. How did the novel The Yacoubian Building firstly become well known?A. By its film adaptation. B・ By media advertising.C. By the public concern.D. By itu amazing26. Why does Aswany still work as a dentist?A. He likes the view in the street.B. He needs to make a living as a dentist.C. He wants to help the poor as a doctor.D. He connects to real life through his clinic.27. Which of the following can best describe Aswany?A. Gegerous.B. Hardworking.C. Outgoing.D.Humorous."CIn the age of Amazon and the Internet, the idea of going to a public library to borrow a book may seem ever more unusual and old-fashioned in many parts of the world, but one country, at least, is holding on it tightly: the Czech Republic? There are libraries everywhereyou look in the country. There is one library for every 1,971 Czech citizens——four times as many, relative to population, as the average European country, and 10 times as many as the United States, which has one for every 19,583 people.Why so many Czech libraries? Well, for decades they were mandatory—every community, from a big city down to a tiny village, was required by law to have one. The law was enacted in 1919, soon after Czechoslovakia emerged as an ' independent country. The li- brary law survived the German occupation and the breakup with Slovakia in the early 1990s. What it couldn't survive was budget pressure. To save money, the requirement was dropped in 2001, when there were about 6,019 libraries in the country; since then, about 11 percent have been combined or closed.Now, the surviving Czech libraries are doing what they can to stay vibrant (生气勃勃的) and relevant. They serve as local meeting places, They organize reading clubs and art exhibits and offer computer literacy (读写)courses, and they welcome groups of schoolchildren and retirtees during the day. But mostly, they do what 92 percent of Czechs still want them to go on doing: They lend books.28. What is the first paragraph mainly about?A. The rise and fall of Czech libraries.B. The difficulties Czech libraries face.C. The transformation of library services in Czech.D. The amazing number of Czech libraries ・29. What doe§'the underlined word "mandatory" in paragraph 2 mean?A. Essential.B. Available. C・ Compulsory D Particular.30. What's the reason for Czech libraries combination or close?A. The money shortage.B. The German occupationC. The government's policy.D. The beeakup with Slovakia.31. According to the text, people go to today's Czech libraries most often to ___ .A. admire works of artB. borrow booksC. join reading clubsD. learn computer skillsDI totally relate to the need many parents have in wanting their children to be special, unique, talented, and amazing. I think my child is all of those things too. Of course I do. But do we really need to be measuring and comparing the academic achievements of kids as young as 3, 4, and 5 years old?These days, I often find it difficult to have a casual conservation with other parents of children who are only in preschool without being told. about how their kid is phenomenally (显著地)"advanced” in writing or that they're already re ading at a 2nd-grade level.I mean, obviously that's great news if you've been led to believe your child possesses a remarkable talent because they're catching on well in preschool. However. I can't help but notice that the height of parental bragging (夸耀)has reached too high both in real life and on social media.I realize I'm probably pessimistic, but I'm afraid that we're placing our children on a ri- diculously steep pedestal (基座)at too young of an age and we're really just giving our chil- dren a higher place to eventually fall from.The ever increasing loads of homework being sent home in preschool and kindergarten seem like overkill as well. The most important skill young kids in preschool and kindergarten should be learning are social skills, in my opinion.So, while I think it's great that your child may be very "advanced” for their age, I sincerely hope your child is happy, well-adjusted, surrounded by kind friends, and praised for so much more than how quickly they can read or write.32. What does the author realize when she's talking with other parents of children in preschool?A. They're very proud of their parenting.B. They like showing off their children's academic achievements.C. They spend a lot of time teaching their children to write.D. They like comparing their children with themselves.33. Paragraph 4 mainly shows that the author is ___ ・A. ambiguousB. jealousC. optimisticD. concerned34. Which of the following would the author agree with?A. Parents shouldn't want their children to be unique.B. It's very important that kids in preschool learn writing.C. Kids in preschool should be mainly taught social skillsD. Preschool education will hardly affect kids in the long run.35. What would be the best title for the text?A. Stop wasting your kid's talentsB. Stop teaching your kid to read and writeC. Stop telling others your kid is "advanced”D. Stop scolding your kid for poor academic performance第二节(共5小题;每小题2分,满分10分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。