河南省豫南九校2019-2020学年高二上学期第二次联考英语试题(PDF版)
河南省豫南九校2019学年高二上学期期末联考英语试题含答案
豫南九校2017—2018学年上期期末联考高二英语答案阅读理解21-24 BCAD 25-27 CDD 28-31 DCCD32-35 CADB 36-40 CEBGD完形填空41-45 BCACD 46-50 BADCB 55-55 ADCDA 56-20 DBCDB【解析】41. B。
首句提到作者女儿是位单亲母亲，所以可推知她必须抚养（provide for）自己和她的三个孩子。
42. C。
根据空前面的“She budgets carefully”以及下文她为孩子买自行车的事可知她认真预算，设法买一些其他人想当然就能得到的小奢侈品。
manage to do sth 设法做某事；permit 允许；refuse 拒绝。
43. A。
由下文“he was the proud 5 of a good second-hand bike.”可知她儿子想要得到一辆自行车。
44. C。
根据上下文可知这里表示她积攒了钱给孩子买自行车，故选C。
set aside表示“留出，留作……之用”，表示留出钱备用必须说set money aside。
45. D。
这里对应上文的“When her eldest son, David, wanted a 3 ”，David从期盼拥有自行车到真正拥有自行车。
owner 所有者。
46. B。
他骑自行车前往商店，但是忘了锁车，前后句之间是转折关系，故选B。
47-48. AD。
从下文“a lecture ... about the silliness of 19 to use the bike lock”可知他忘了给自行车上锁，导致车被盗。
49. C。
上文提到他好不容易得到这辆自行车，却不小心弄丢了，所以他回家当然心情沮丧。
In tears 流泪；in trouble 处于困境中；in peace 平静地。
50. B。
由上文以及下文的“the teen got in his car, drove after them and 17 that they give thestolen bike back”可知他们母子俩是去警察局报告这次自行车被盗事件，故选B，theft 盗窃案。
河南省豫南市级示范性高中2019_2020学年高二英语上学期联考试题(含解析)
one can stop trade. If trade stops, the world stops. Trade is the way to dissolve
说的一整段话也都是环绕云计算的发展以及给世界带来的利处展开。应选C项。
B
I was selfish as a teenager．I usually spent my time thinking about myself and
taking care of my own needs．I let my older brother do most of the work around the
“Tourism isa sunrise industry.Since I entered Ctrip, every year there arenew
comers, which, first of all, shows that tourism is booming.”Sun told in
heartgets．The more love you get,the more loveyou have to give．Itjustkeeps growing."
So, keep loving,keep livingand keep caring.Keep growingyour hearttoday,tomorrow,
Davos.“We invested heavily in ABC. A refers to AI, B is big data, andC is cloud
2019-2020学年河南省信阳市豫南中学高二英语联考试题含解析
2019-2020学年河南省信阳市豫南中学高二英语联考试题含解析一、选择题1. Most students like the teachers ______ understand them well.A. whoB. whenC. whatD. which参考答案：A2. Patience is a kind of quality — and that is ________ it takes to do anything well.A. whatB. whichC. whyD. how参考答案：A3. ----How about eight o’clock outside the cinema?----That ______ me fine.A. fitsB.meets C.satisfies D. suits参考答案：D4. While ___ beef, people in the western countries will ___ with the knife and put it into mouth with the fork.A.eating;cut it upB.eaten;cut it downC.eating;cut it inD.eaten;cut it off参考答案：A略5. The manager promised to keep us _____ of how our business was going on.A. informedB. informingC. being informedD. to be informed参考答案：A6. An unhappy childhood may have some negative effects on a person’s characters; however, they are not always_________,A. casualB. ashamedC. permanentD. unfit参考答案：C7. He can hardly his wife’s bad-temper， so he decided to seek divorce with her.A. teamed up withB. caught up withC. put up withD. kept up with参考答案：C略8. For professional athletes, ______ to the Olympics means that they have a chance to enter the history books.A.appealB.attachmentC.accessD.approach参考答案：C9. Well, now there’s system _______ the waste is disposed of using the principles of ecology.A. whereB. thatC. whatD. which参考答案：A考查定语从句。
2019-2020学年高二上学期联考英语试卷 (2)
七校联考英语试题本试卷分第I卷（选择题）和第II卷（非选择题）两部分第I卷第一部分听力(共两节，满分30分)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，并标注在试卷的相应位置。
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。
（原创）1. How will the man get to the bank?A. He will turn right.B. He will cross the street.C. He will go straight and then left.2. What will the speakers do first?A. Go to a gas station.B. Have some dinner.C. Drive to a theater.3. When did the man start going to the candy store?A. When he was 8.B. When he was 10.C. When he was 15.4. How long will the speakers stay in Greenwich?A. For 15 minutes.B. For two hours.C. For two and a half hours.5. Where does the conversation probably take place?A. In a police station.B. In a classroom.C. At home.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，并标注在试卷的相应位置。
听每段对话或独白前，你将有时间来阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。
河南省洛阳名校2019_2020学年高二英语上学期第二次联考试题含解析
某某省某某名校2019-2020学年高二英语上学期第二次联考试题（含解析）（考试时间：100分钟试卷满分：120分）第一部分（略）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，并在答题卡上将该项涂黑。
AThe National GalleryDescription:The National Gallery is the British national art museum built on the north side of Trafalgar Square in London. It houses a diverse collection of more than 2,300 examples of European art ranging from 13th-century religious paintings to more modern ones by Renoir and Van Gogh. The older collections of the gallery are reached through the main entrance while the more modern works in the East Wing are most easily reached from Trafalgar Square by a ground floor entrance. Layout:The modern Sainsbury Wing on the western side of the building houses13th-to15th-century paintings, and artists include Duccio, Uccello, Van Eyck, Lippi, Mantegna, Botticelli and Memling.The main West Wing houses 16th-century paintings, and artists includeLeonardo da Vinci, Cranach, Michelangelo, Raphael, Bruegel, Bronzino, Titan and Veronese.The North Wing houses 17th-century paintings, and artists include Caravaggio, Rubens, Poussin, Van Dyck, Velazquez, Claude and Vermeer.The East Wing houses 18th-to early 20th-century paintings, and artists include Canaletto, Goya, Turner, Constable, Renoir and Van Gogh.Opening Hours:The Gallery is open every day from 10 am to 6 pm (Fridays 10 am to 9 pm) and is free, but charges apply to some special exhibitions.Getting There:Nearest underground stations: Charing Cross (2-minute walk), Leicester Square (3-minute walk), Embankment (7-minute walk), and Piccadilly Circus (8-minute walk).1. In which century’s collection can you see religious paintings?A. The 20thB. The 17thC. The 18thD. The 13th2. Where are Leonardo da Vinci’s works shown?A. In the East Wing.B. In the main West Wing.C. In the Sainsbury Wing.D. In the North Wing.3. Which underground station is closest to the National Gallery?A. Charing Cross.B. Leicester Square.C. Embankment.D. Piccadilly Circus.【答案】1. D 2. B 3. A【解析】【分析】本文是一篇说明文。
豫南九校2020-2021学年高二上学期第二次联考 英语试题(含答案)
豫南九校2020-2021学年高二上学期第二次联考英语试题第一部分听力(略)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，从每题所给的四个选项(A、B、C、和D)中，选出最佳选项。
AShows, Events and Festivals for Outdoor Lovers28 June-8 JulyGrahamstown National Arts FestivalGrahamstown, ECUndoubtedly Africa's most important arts and culture event, the National Arts Festival is the highlight (最精彩的部分)of many South African's events calendar, turning the sleepy university center of Grahamstown into a hive of activity(喧闹繁忙的场所). It's a beautiful, honest and diverse celebration of South African art, with a little international talent thrown in the mix for added variety. Don't miss out on the market, either!www.nationalartsfestical.co.za13-15 JulyCanimambl Free Form Music & Arts FestivalGraskop, MPCalling all free spirits: pack your tent, guitar and paintbrushes and head for Graskop. The Canimambo Festival is a celebration of art that breaks the rules-free expression is the order of the day! There will be plenty of food and activities, and young children will be kept entertained by a swimming pool, art competition and jumping castle. The event will be held at Graskop Holiday Resort, so campers of all sorts are welcome. Search for the festival on Facebook for more information.29 June-1 JulyKirkwood WildsfeesPort Elizabeth, ECTaking place in the Sundays River Valley, this weekend-long festival promises three days of "born to be wild" fun to start off the school holidays. Tickets allow you access to live entertainment, the Agri Expo and plenty ofgood food and尽rink. Confirmed artists include Locnville, Snotkop and Kurt Darren. Why not set up a tent in one of the nearby campsites and join the fun?www.wildsfees.co.za5-7 JulyEllisras BosveldfeesLephalale, LPHead up north this month for the festival fun you can handle. From cattle contests and dog shows to a beer tent and traditional food, your entire weekend will be covered in Lephalale. There's even a three-day 4×4 competition for all the off-road(越野)enthusiasts!. Why not have some fun in the heart of the bushveld(南非草原)? Search for the festival on Facebook for more information.21. What can we know from the text?A. No international ails are on show at Grahamstown National Arts FestivalB. Kids activities are provided at Canimambl Form Music & Arts FestivalC. Many artists from around the world will attend Kirkwood WildsfeesD. There is a beer competition at Ellisras Bosveldfees22. Which event will you go to if you want to see live entertainment?A. Grahamstown National Arts Festival.B. Canimambl Free Form Music & Arts Festival.C. Kirkwood Wildsfees.D. Ellisras Bosveldfees.23. When can you see an animal show in Lephalale?A. On 28 June.B. On 14 July.C. On 29 June.D. On 6 July.BWe know that smartphone addiction is real, and that it can affect lives in negative ways. While some people have tried going cold turkey(快速戒掉坏习惯) or even punishing themselves for their mobile phones, an app is made available in the UK that rewards people for staying away from their devices.The app, called Hold, was created by Norwegians Maths Mathisen, Florian Winder, and Vinoth Vinaya while they are studying at Copenhagen's Business school, to help break fellow students' attachments to their devices.The three college students found that positive reinforcement(强化)was the best way of beating smartphone addiction. Hold allows students to collect points for staying off their devices between the hours of 7 am and 11 pm; they get 10 points for every 20 minutes.Through partnerships with universities and businesses, points can be used for discounts on everything fromcinema tickets to Amazon goods to cafe food and drink. A half price cinema ticket, for example, costs 60 points, or 2 hours away from a phone. And a￡5($ 6.88)Amazon voucher (代金券) needs 1,000 points, or 33 hours off your smartphone.Students can also use their points to buy school books and stationery(文具), which are then donated to schools partnered with children's charity Unicef.Over 120, 000 people use the app in Scandinavia, including 40 percent of higher education students in Norway, where Hold first came onto market in February 2016. It's now available to students from over 170 universities in the UK.A 2017 University of Texas study claimed that merely placing a smartphone in someone's line of sight slowed down their productivity, response time, and reduced their grades. An earlier study from the London School of Economics found students who didn't use smartphones on school grounds saw their test scores increase 6. 4 percent.24. The app Hold was created mainly to .A. promote online sales of goodsB. earn discounts on goods or servicesC. find new uses of mobile phonesD. help students put down their smartphones25. How long should a student stay off the mobile phone to get 300 points?A. 6 hours.B. 10 hours.C. 15 hours.D. 30 hours.26. What is the main purpose of the text?A. To tell the story of Hold creationB. To present people's opinions of HoldC. To give a brief introduction of HoldD. To attract potential customers to Hold27. Where is the text most likely to appear?A. A newspaper advertisementB. A computer textbookC. A science magazineD. An official documentCThe dancer put a cardigan sweater over her leotard. Then she sat down to eat a sandwich. Cardigan, leotard, sandwich-where did these words come from? Did you know that each of them was a person's name? Words that come from proper names are called eponyms(名祖名词), and there are many eponyms in English.The sandwich, for example, was named for John Montagu, the Earl(伯爵)of Sandwich. He lived from 1718-1792. He loved to play cards and did not want to stop a game even to eat. By putting cold meat between two pieces of bread, he could eat while he played.The cardigan sweater was named for an officer in the British army. In the 1800s, James Thomas Brudenell, the Earl of Cardigan, spent his own money to buy special knitted(针织的)jackets for the men in his army. Knitted jackets with buttons soon came to be called cardigans.Jules Leotard was a French circus performer. In 1859, at the age of twenty-one, Leotard performed the first mid-air somersault(空翻). He became known as the "daring young man on the flying trapeze(吊杠)". Leotard invented a close-fitting one-piece suit to wear when he performed. Dancers still call their close-fitting garments leotards.Another person who gave her name to a style of clothing was Amelia Bloomer. Bloomer was the editor of a magazine called The Lily. American women in her day were expected to wear heavy skirts that dragged on the floor. In 1851, a young woman named Elizabeth Smith Miller introduced a new kind of clothing that was much easier to move around in. She wore a dress that came only to the knees. Under it she wore loose pants that fitted close at the ankles. Amelia Bloomer published a picture of the outfit(全套服装)in the Lily. She hoped women would adopt the new style. In news stories, reporters called the pants "bloomers". A hundred years later, people were still using the word.There are many other words that come from people's names. The diesel engine was named for its inventor, Rudolf Diesel. The word boycott comes from the name of an English landlord named Charles Boycott. Where each word came from is a story in itself. Who knows, maybe your name will become a word someday.28. Why did the Earl of Sandwich invent the "sandwich"?A. He found it boring to play cards.B. He preferred to eat meat and bread.C. He wanted to create a new kind of food.D. He could eat while playing cards without stopping the game.29. According to the text, what do "bloomers" refer to?A. Loose dressesB. Loose pants worn under a dressC. Dresses that came to the kneesD. Heavy skirts dragged on the floor30. What do the words cardigan, leotard and sandwich have in common?A. They are still in use today.B. They were first used in the army.C. They belong to the clothing category.D. They were invented during the same period.31. What is the best title for this passage?A. Ways to remember words.B. Words that come from people's names.C. The history of garments development.D. The unknown stories behind English words.DA team of researchers led by engineers from Penn State University has created the first material that heals itself in the presence of water, according to a study published in Scientific Reports. The material, inspired by squid(鱿鱼)teeth, could be used to repair instruments in water-filled environments that are difficult to access, such as the human body, or the bottom of the sea.The researchers had been studying squids' ring teeth, which are uniquely strong and can change state from liquid to solid in the presence of water. After testing ring teeth samples from several species of squid found all over the world, the researchers uncovered the genetic code for the proteins (蛋白质) that allow the teeth to heal themselves when broken. They then changed the genetic structure of bacteria to produce the proteins so they could conduct more tests.The researchers then made the proteins into a rubbery plastic by mixing them with a solvent(溶剂)and letting the solvent change into a gas. The resulting material combines a soft, shapeless part of the protein that gives the plastic its self-healing characteristics and a more structured sheet of amino acids(氨基酸)that give it a solid structure.To test the material's strength, the researchers cut it, and then put the two pieces back together with a drop of water. They found that the material healed best at 113 degrees Fahrenheit, a little warmer than the temperature of the human body, and with slight pressure from a metal tool. The material was just as strong, and able to hold the same amount of weight, before and after it was cut.Material that heals itself in the presence of water could expand the usability of biomedical implants(移植). Of course, this material is nowhere near ready for that application, and the researchers didn't test whether the constant presence of water degrades(降低)the plastic's ability to heal itself. The researchers next plan to study how their technology could help heal wounds.32. According to paragraph 3, the rubbery plastic become self-healing in combination with .A. amino acidsB. another kind of rubberC. a mixture of gasesD. some protein33. In paragraph 4, the researchers carried out a test to check whether the material .A. was fit for human bodyB. would melt at high temperaturesC. could be connected with the metalD. would recover its original strength after healing itself34. What is the author's attitude towards the self-healing material?A. Positive.B. Objective.C. Doubtful.D. Critical.35. What is the main idea of the text?A. A kind of self-healing teeth was made from squids' ring teeth.B. The genetic code of squids' special teeth has been uncovered.C. Super-strong material inspired by squid teeth is self-healing.D. A special rubbery plastic is used to replace squids' teeth.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。
精品解析：【全国校级联考】河南省豫南九校2017-2018学年下学期第二次联考高二数学(文)(解析版)
豫南九校2017-2018学年下期第二次联考高二数学（文）试题第Ⅰ卷（共60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. 已知复数满足，则复数对应的点位于复平面内的（）A. 第一象限B. 第二象限C. 第三象限D. 第四象限【答案】D【解析】由题得,所以复数z对应的点为（2，-1），所以复数z 对应的点在第四象限.故选D.2. 已知复数满足，其中是的共轭复数，，则复数的虚部为（）A. B. C. D.【答案】D【解析】设复数，由题得所以复数z的虚部为故选D.3. “对数函数是非奇非偶函数，是对数函数，因此是非奇非偶函数”，以上推理（）A. 结论正确B. 大前提错误C. 小前提错误D. 推理形式错误【答案】C【解析】本命题的小前提是是对数函数，但是这个小前提是错误的，因为不是对数函数，它是一个复合函数，只有形如的才是对数函数.故选C.4. 在利用反证法证明命题“是无理数”时，假设正确的是（）A. 假设是有理数B. 假设是有理数C. 假设或是有理数D. 假设是有理数【答案】D【解析】由于反证法假设时，是对整个命题的否定，所以命题“是无理数”是命题“是无理数”，即假设是有理数，故选D.5. 若椭圆与直线有公共点，则该椭圆离心率的取值范围是（）A. B. C. D.【答案】B【解析】联立方程得消去y化简得，由题得故该椭圆离心率的取值范围是，故选B.6. 已知，则是为纯虚数的（）A. 充要条件B. 充分不必要条件C. 必要不充分条件D. 既不充分又不必要条件【答案】C【解析】先考虑充分性，当x+y=0时，不一定为纯虚数，因为x-y=0时，它是实数.所以是非充分条件.再考虑必要性，当为纯虚数时，则有x+y=0且x-y≠0,所以必要性成立.故选C.7. 在平面几何里有射影定理：设三角形的两边，是点在边上的射影，则.拓展到空间，在四面体中，平面，点是点在平面内的射影，且在内，类比平面三角形射影定理，得出正确的结论是（）A. B.C. D.【答案】A【解析】由已知在平面几何中，若△ABC中，AB⊥AC，AE⊥BC，E是垂足，则AB2=BD•BC，我们可以类比这一性质，推理出：若三棱锥A﹣BCD中，AD⊥面ABC，AO⊥面BCD，O为垂足，则（S）2=S△BOC．S△BDC．△ABC点睛：类比推理在几何里面是有一般规律的. 由点类比到线，由线类比到面，由面类比到体，一步一步由低级向高级在转化.本题中，类比到空间，线段的关系就要类比到面积的关系,就是这个原理.8. 下列说法正确的是（）A. 命题“若，则”的否命题是“若，则”B. 命题“，”的否定是“，”C. 函数的最小值为D. 若，则“”是“”的必要不充分条件【答案】D【解析】对于选项A，命题“若，则”的否命题是“若，则”，所以选项A错误.对于选项B，命题“，”的否定是“，”，所以选项B错误.对于选项C，不能利用基本不等式求最小值，因为取等的条件不成立. 只能这样：设所以函数在上是增函数，所以t=3时函数取最小值所以选项C错误.对于选项D,由得a>1或a<0，由于a>1或a<0是“”的必要不充分条件，所以“”是“”的必要不充分条件，所以选项D正确.故选D.9. 在中，内角，，的对边分别是，，，若，，则（）A. B. C. D.【解析】由正弦定理得故选A.学_科_网...学_科_网...学_科_网...学_科_网...学_科_网...学_科_网...学_科_网...学_科_网...10. 已知函数在区间上是减函数，则实数的取值范围是（）A. B. C. D.【答案】A【解析】由题得在区间上恒成立，所以，设故选A.11. 已知点是抛物线上的动点，点在轴上的射影是，点，则的最小值是（）A. B. C. D.【答案】B【解析】过点M作抛物线准线的垂线，垂直为N，则=-1=|PA|+|PF|-1，当A,P,F三点共线时，|PA|+|PF|最小=|AF|=所以的最小值是.故选B. 点睛：在圆锥曲线里面，我们只要看到焦半径就要联想到圆锥曲线的定义，看是否能够利用圆锥曲线的定义解题，这是一个基本的规律.本题就是利用了这个规律解题，看到点到准线的距离马上联想到转化成点到焦点的距离.12. 已知函数的定义域为，是的导函数，且满足，则不等式的解集为（）A. B. C. D.【答案】B【解析】设所以函数在上是减函数，因为，所以（x+1），故选B.点睛：本题的关键是观察和联想.一是看到要联想到商的导数，从而构造函数.二是看到联想到前面的单调性，想到在不等式的两边同时乘以(x+1). 数学里的观察和联想是一种比较重要的能力，在平时的学习中要注意培养.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. 若，则__________．【答案】6【解析】由题得，所以故填6.14. 在平面直角坐标系中，已知的顶点和，若顶点在双曲线的右支上，则__________．【答案】【解析】∵双曲线中，a=3，b=∴c==4，∴A、C恰好是双曲线的左右焦点，焦距|AC|=8根据双曲线的定义，得||AB|﹣|CB||=2a=6，∵顶点B在双曲线的右支上，∴|AB|﹣|CB|=6，△ABC中，根据正弦定理，得故.15. 给出下列说法：①线性回归方程必过点；②相关系数越小，表明两个变量相关性越弱；③相关指数越接近，表明回归的效果越好；④在一个列联表中，由计算得的观测值，则有以上的把握认为这两个变量之间没有关系；⑤设有一个线性回归方程，则变量增加一个单位时，平均增加个单位.其中正确的说法有__________（填序号）．【答案】①③【解析】对于②，应该是相关系数的绝对值越小，表明两个变量相关性越弱.所以它是错误的.对于④，应该是有以上的把握认为这两个变量之间有关系.对于⑤，应该是变量增加一个单位时，平均减少个单位.故填①③.16. 观察下列的数表：…… ……设是该数表第行第列的数，则__________．【答案】4980【解析】第一行有1个偶数，第二行有2个偶数，第三行有个偶数，所以第行有个偶数，所以前n行共有个偶数，所以前n行最后一个偶数是所以第10行最后一个是2046，第10行有512个偶数，所以2018在第498个，所以m=10,n=498,所以4980，故填4980.点睛：本题归纳主要是先要发现第n行有个偶数，再就是要计算出前n行一共有个偶数，最后确定m和n就容易了.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. 已知数列为公差不为零的等差数列，，且，，成等差数列.（1）求数列的通项公式；（2）若数列满足，求数列的前项和.【答案】（1）.（2）．【解析】试题分析：(1)由题意可得数列的公差为，则数列的通项公式是；(2)结合(1)中求得的通项公式裂项求和可得数列的前项和.试题解析：（1）设数列的公差为由，且，，成等差数列，得，即，得，得，解得或（舍去）.所以数列的通项公式为.（2）因为，所以.点睛：使用裂项法求和时，要注意正负项相消时消去了哪些项，保留了哪些项，切不可漏写未被消去的项，未被消去的项有前后对称的特点，实质上造成正负相消是此法的根源与目的．18. 某机构为研究患肺癌是否与吸烟有关，做了一次相关调查，其中部分数据丢失，但可以确定的是调查的不吸烟的人数与吸烟的人数相同，吸烟患肺癌的人数占吸烟总人数的，不吸烟的人数中，患肺癌的人数与不患肺癌的人数之比为.（1）若吸烟不患肺癌的有人，现从患肺癌的人中用分层抽样的方法抽取人，再从这人中随机抽取人进行调查，求这人都是吸烟患肺癌的概率；（2）若研究得到在犯错误的概率不超过的前提下，认为患肺癌与吸烟有关，则吸烟的人数至少为多少？附：，其中.【答案】（1）．（2）20人．【解析】试题分析：（1）第（1）问，先计算出吸烟患肺癌的有16人，吸烟不患肺癌的有4人，再利用古典概型的概率公式求出这人都是吸烟患肺癌的概率.(2)第（2）问，设吸烟的人数为，列出2×2列联表，再利用卡方公式计算求出x的范围，即得吸烟的人数至少为多少.试题解析：（1）设吸烟的人数为，依题意有，所以，吸烟的有20人，故吸烟患肺癌的有16人，吸烟不患肺癌的有4人．由题意得不吸烟的有20人，其中不吸烟患肺癌的有4人，不吸烟不患肺癌的有16人．用分层抽样的方法从患肺癌的人中抽取5人，则应从吸烟患肺癌的人中抽取4人，分别记为，从不吸烟患肺癌的人中抽取1人，记为．从这5人中随机抽取2人，所有可能的结果有共10种，其中这2人都是吸烟患肺癌的结果共有6种，所以这2人都是吸烟患肺癌的概率．（或）（2）设吸烟的人数为，由题意可得列联表如下：由表得，的观测值，由题意得，解得，因为为整数且为5的倍数，所以的最小值为20，即吸烟的人数至少有20人．19. 设命题关于的不等式，；命题关于的一元二次方程的一根大于零，另一根小于零；命题的解集.（1）若为值命题，为假命题，求实数的取值范围；（2）若是的必要不充分条件，求实数的取值范围.【答案】（1）或.（2）．【解析】试题分析：（1）第（1）问，先化简命题p、q和r，再由题得，一真一假，最后求出实数a的范围.(2)第（2）问，先写出和，再根据是的必要不充分条件列出不等式，即得实数的取值范围. 试题解析：对于命题：，解得或，对于命题：只需，解得，对于命题：关于的不等式的解集为．（1）若为真命题，为假命题，则，一真一假，当真假时，解得；当假真时，解得，综上可知，实数的取值范围是或.（2）若是的必要不充分条件，则，所以，所以或或，所以解得．综上，实数的取值范围是．20. 已知圆的圆心为，，为圆上任意一点，线段的垂直平分线与线段的交点为.（1）求点的轨迹的方程；（2）若过点的直线交曲线于，两点，求的取值范围.【答案】（1）．（2）．【解析】试题分析：（1）第（1）问，利用定义法确定点P的轨迹是椭圆，再求椭圆的标准方程.(2)第（2）问，先求出关于直线斜率k的表达式，再求函数的取值范围.试题解析：（1）连结，由于是线段的垂直平分线，所以，所以，所以点的轨迹是以为焦点，以4为长轴长的椭圆，故其方程为．（2）①当直线的斜率不存在时，，，所以．②当直线的斜率存在时，设：，代入消去得，设，则，因为，所以因为，所以，所以，综上可知，的取值范围是．点睛：本题关键是第（2）问，首先要想到函数的思想，先求出关于直线斜率k的表达式，再求函数的取值范围.函数的思想是高中数学里的一个重要思想，大家要理解掌握并灵活运用.21. 已知函数.（1）若，求曲线在点处的切线方程；（2）若函数有两个极值点，求的取值范围.【答案】（1）．（2）．【解析】试题分析：（1）第（1）问，先求导，利用导数的几何意义求出切线的斜率，再求切点坐标，最后写出切线的点斜式方程. (2)第（2）问，先求出的表达式，再换元求函数的值域,即得的取值范围.试题解析：（1）当时，，，所以，，故曲线在点处的切线方程为，即．（2），则函数有两个极值点，等价于解得.所以令，则，设，则，所以在上单调递减，又当时，，当时，，所以的值域为故的取值范围是．点睛：本题的难点在第（2）问，首先要想到函数的思想，先求出的表达式，再换元利用导数求函数的值域,即得的取值范围.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. 在平面直角坐标系中，以坐标原点为极点，轴非负半轴为极轴，建立极坐标系.已知曲线的极坐标方程为，曲线的极坐标方程为，且曲线，交于，两点.（1）求曲线，的直角坐标方程；（2）设点，求的值.【答案】（1）；.（2）16．【解析】试题分析：（1）第（1）问，利用极坐标的公式求曲线，的直角坐标方程. (2)第（2）问，先写出直线的参数方程，再代入抛物线方程，利用直线参数方程t的几何意义求的值.试题解析：（1）曲线的直角坐标方程为；曲线的直角坐标方程为.（2）因为曲线的直角坐标方程为，所以曲线的参数方程为为参数，将其代入得，所以，所以．23. 已知函数.（1）当时，求的解集；（2）当时，恒成立，求实数的取值范围.【答案】（1）．（2）．【解析】试题分析：（1）第（1）问，利用零点分类讨论法解绝对值不等式. (2)第（2）问，先化简，再分离参数得到对任意的恒成立，再求a的取值范围.试题解析：（1）当时，由可得，所以当时，不等式转化为，无解，当时，不等式转化为，解得，当时，不等式转化为，解得，综上可知，不等式的解集为．（2）当时，恒成立，即，故，即对任意的恒成立，所以．。
豫南高二英语试题
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河南省豫南九校高三英语上学期第二次联考(扫描版)新人教版
河南省豫南九校2015届高三英语上学期第二次联考（扫描版）新人教版豫南九校2014—2015学年上期第二次联考高三英语试题参考答案阅读理解：1—5 DAAAA 6—10 BCABC 11—15.DABDC 16-20..GCFAB完形填空：21-25 ACCBA 26-30 ACDCB 31-35 ABBCA 36-40 DBDAC41-45 CDBAC 46-50 CDBAB 51-55 DCBAD 56-60 BCACB语法填空：61.went 62.However 63. her 64. was running 65. terribly 66. it 67. which68. were 69. a 70. Trembling短文改错：I was only five years old that she held her hand out to me . I took it in me and we walked . Then IWhen mineask her , “Grandma , how come you have so much lines on your hand?” she laughed and said , asked many“well , this is a big question!” She was ∧silence for a moment . So she answered slowly : “Eachin或 silent Then/ And∧these lines stands for a trouble in my life.” I looked at her other hands. “But Grandma, what doof hand whyyou have more lines on that one?”“Because there are more the honors and joys in my life.”书面表达：去掉My dear classmates, may I have your attention please?.No doubt every Senior 3 student wishes to be successful in the National College Examination . Yet what should we do in order to achieve success? Here are some suggestions .First, it’s very important to have a right attitude, for a normal state of mind and self-confidence not only help us to relax but also enable us to overcome difficulties bravely. Meanwhile, we should have a definite goal and a correct estimation of ourselves. Only in this way will we not be easily pleased or disappointed with what we have known and done. Besides , we’d better sometimes talk with our parents, teachers or classmates, who may help us out when we’re in trouble. Finally , striking a proper balance between study and rest keeps us energetic and a healthy diet is useful as well.With these done, I think we can greatly improve our performance.。
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高二 英语 试题 第 2页 (共 8页 )
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D。 A cow.
scoo勿 一Doo,launched(投 放 市 场 )in 1969 and recently made into a live-acu。 nm。vie
starring sarc凡 nf·jc凡eJJe CoJJc``, can1e second, iEye-patch wearing secret agent I冫 c尼g·c″mo△ se, w· ho
高二英语试题 第 1页 (共 8页 )
23。 According to the passage, wˉ e can infer that 1.nany cartoon filΠ ls are very popular arnong people because
A.their cartoon charaCters are a11 aninlals
of New York alley cats-calne fourth.Iˉ Iis adventures,based on 1950s Us colmedy,F· %e Pi九 jJ Sj浼 昭rs
s九ov,were changed into Boss Cc`r in the UK to avoid confusion with a brand of cat food.
a.entered the University of North Carolina
b.took an olympic bronze meda1
C.took an olympic gold medal
d.was named Women’ s World Player of the Year by FIFA
B
Marie1 Margaret Hamm was born on March 17,1972,selma,Alabama,U.s, she was an Ameican footba11 player,who became the srst intemational star of the women’ s galne.Playing forward,she stan· ed on the U.s.national team that won Wodd Cup chalnpionships in
豫南九校 2019-2020学 年上期第二次联考
高二英语试题
(考 试 时间:100分 钟 试卷满分:120分 )
第一部分 听力 (略 )
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 。
21.Which of the fo11owing canoons is below rop CcJ in the list?
A.%m@nd Je″ γ. C.Donger″ 1o“ e.
B.Scoo3,'-Doo. D.r‰ e FJJ“ J。铭s.
22.About Top Cat,we know that_,
A.it was based on Boss Cat B,the cat was played by a real hulman C.it was another name of a brand of cat food D.it was changed into Boss Cat in order not to be misunderstood
United soccer Association(2001-03).
24.After working in national teanl for_years,IIalnm left the national tealn,
A.10
B.13
C.15
D.17
ording to what happened to IIarnm, which is the correct order?
B.a11 ages like their cartoon characters
C.their cartoon characters are hunlorous and attractive
E).their cartoon characters have close connection with people’ sw· ay of life
C。 she took an(Olylnpic gold n1edal。
E)。 she becalne the best-known 1· 11ale athlete。
C
Salt irltake has been on the decrease in{China since 2000, but it currently is sti11 nearly twice the amount recommended by the World Health organization(WH0),a new study said Tuesda,y。
27.What happened to Harnlm in 1995?
A~。 she played for National Co11egiate Athletic A。 ssociation chalinpionship。
B.she took a bronze luedal in the World{〔 lup tournarnent。
channel Boomerang.‘ ‘Anin1als ·h⒎ith hun1an characten.stics are an unbeatable con1billation,’ ’channe1
n1anager Dan iBalaam said, I· Ie said that animal characters had proved rnost popular in the survey.
oscars-beat the likes of scoob9`-Doo,Top Cc莎 cr1d r‰ e FJ讠 硝Jo尼6.