2019年上海南模中学高三三模

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2019-2020学年上海市南洋模范中学高三生物三模试卷及参考答案

2019-2020学年上海市南洋模范中学高三生物三模试卷及参考答案

2019-2020学年上海市南洋模范中学高三生物三模试卷及参考答案一、选择题:本题共15小题,每小题2分,共30分。

每小题只有一个选项符合题目要求。

1. 下列关于生长素发现过程的实验,说法不正确的是()A.达尔文实验证明,胚芽鞘的感光部位是尖端B.鲍森·詹森的实验证明,胚芽鞘尖端产生的影响可以透过琼脂片传递给下部C.拜尔的实验证明,胚芽鞘的弯曲生长是由于生长素生长分布不均匀造成的D.温特实验证明,胚芽鞘尖端能产生促进生长的化学物质2. 2018年诺贝尔生理学或医学奖授予美国免疫学家詹姆斯·艾利森和日本免疫学家本庶佑,以表彰他们在癌症免疫治疗方面所作出的贡献。

下列叙述错误的是A. 癌变的细胞内,负责调节细胞周期的基因功能异常B. 细胞癌变后,细胞膜的成分发生改变,细胞间黏着性降低C. 人体免疫系统能够消灭癌细胞体现了免疫系统的防卫功能D. 人体免疫系统识别癌细胞的过程受到干扰会导致癌细胞“逃逸”3. 下列不一定发生在人体内环境中过程有A.正常机体内抗体与抗原的结合B.某种激素与激素受体结合C.肝脏细胞代谢产生的尿素运输到肾小球D.各种神经递质从突触前膜到达突触后膜4. 生物大分子通常都有一定的分子结构规律,即由一定的基本组成单位,按一定的排列顺序和连接方式形成多聚体,下列表述正确的是()A.若该图为一段肽链的结构模式图,则1表示肽键,2表示中心碳原子,3的种类约有21种B.若该图为一段RNA的结构模式图,则1表示核糖,2表示磷酸基团,3的种类有4种C.若该图为一段单链DNA的结构模式图,则1表示磷酸基团,2表示脱氧核糖,3的种类有4种D.若该图表示多糖结构模式图,淀粉、纤维素和糖原的空间结构是相同的5. 如图表示人体细胞间信息传递的一种方式。

下列描述错误的是()A. 该调节方式的信息传递速度缓慢、作用范围较广泛B. 若靶细胞属于垂体,则分泌细胞一定是下丘脑细胞C. 若分泌细胞是垂体细胞,则靶器官可能是甲状腺、性腺、肾上腺D. 体温调节和血糖平衡调节可能涉及这种调节方式6. 下列关于脂质功能的叙述错误的是()A. 胆固醇在人体内参与血液中脂质的运输B. 磷脂是构成细胞膜和细胞器膜的重要成分C. 维生素D能有效地促进人和动物肠道对钙和磷的吸收D. 脂肪中含H比糖类多,是主要的能源物质7. 图1表示芽的生长与生长素浓度的关系,图2表示幼苗横放时,根的生长与生长素浓度的关系。

2019年上海南模中学高三三模

2019年上海南模中学高三三模

南模中学高三三模数学试卷2019.05一. 填空题1. 若集合{|310}A x x =+>,{||1|2}B x x =-<,则A B =2. 若复数z 满足1ii z -=-,其中i 为虚数单位,则z = 3. 若函数1()1f x x =+(0x >)的反函数为1()f x -,则不等式1()2f x ->的解集为4. 试写出71()x x-展开式中系数最大的项5.若函数4y =a ,最大值为b ,则2lim 34n n n nn a b a b →∞-=-6. 已知平面上三点A 、B 、C 满足||3AB =,||5BC =||22CA =,则AB BC BC CA CA AB ⋅+⋅+⋅的值等于7. 设P 是曲线tan x y θθ⎧=⎪⎨⎪=⎩(θ为参数)上的一动点,O 为坐标原点,M 为线段OP 的中点,则点M 的轨迹的普通方程为8. 在等差数列{}n a 中,首项13a =,公差2d =,若某学生对其中连续10项进行求和,在遗漏掉一项的情况下,求得余下9项的和为185,则此连续10项的和为9. 从集合{1,2,3,4,5,6,7,8,9,10}A =中任取两个数,欲使取到的一个数大k 于,另一个数小于k (k A ∈)的概率为25,则k = 10. 已知数列{}n a 的通项公式为(1)2n nn a n =-⋅+(*n ∈N ),则这个数列的前n 项和为n S =11. 已知函数1()f x x x=-,数列{}n a 是公比大于0的等比数列,且61a =, 1239101()()()()()f a f a f a f a f a a +++⋅⋅⋅++=-,则1a =12. 定义在R 上的奇函数()f x ,当0x ≥时,12log (1)[0,1)()1|3|[1,)x x f x x x +∈⎧⎪=⎨⎪--∈+∞⎩,则关于x 的函数()()F x f x a=-(01a <<)的所有零点之和为 (结果用a 表示)二. 选择题13. 已知非零向量a 、b ,“函数2()()f x ax b =+为偶函数”是“a b ⊥”的( )条件 A. 充分非必要 B. 必要非充分 C. 充要 D. 既不充分也不必要 14. 若a 、b 表示两条直线,α表示平面,下列命题中的真命题为( ) A. 若a α⊥,a b ⊥,则b ∥α B. 若a ∥α,a b ⊥,则b α⊥ C. 若a α⊥,b α⊆,则a b ⊥ D. 若a ∥α,b ∥α,则a ∥b15. 抛物线24y x =的焦点为F ,点(,)P x y 为抛物线上的动点,又点(1,0)A -,则||||PF PA 的最小值是( ) A.12B. 2C. 3D. 2316. 已知1x 、2x 是关于x 的方程220x mx m m ++-=的两个不相等的实数根,则经过两点211(,)A x x 、222(,)B x x 的直线与圆22(1)(1)1x y -++=的位置关系是( )A. 相离B. 相切C. 相交D. 随m 的变化而变化三. 解答题17. 如图,长方体1111ABCD A B C D -中,2AB BC ==,13AA =. (1)求四棱锥1A ABCD -的体积; (2)求异面直线1A C 与1DD 所成角的大小.18. 已知函数()|2|f x x a a =-+.(1)若不等式()6f x <的解集为(1,3)-,求a 的值;(2)在(1)的条件下,若存在0x ∈R ,使00()()f x t f x ≤--,求t 的取值范围.19. 某景区欲建两条圆形观景步道1M 、2M (宽度忽略不计),如图所示,已知AB AC ⊥,60AB AC AD ===(单位:米),要求圆1M 与AB 、AD 分别相切于点B 、D ,圆2M 与AC 、AD 分别相切于点C 、D . (1)若3BAD π∠=,求圆1M 、2M 的半径(结果精确到0.1米);(2)若观景步道1M 、2M 的造价分别为每米0.8千元与每米0.9千米,则当BAD ∠多大时,总造价最低?最低总造价是多少?(结果分别精确到0.1°和0.1千元)20. 已知椭圆2222:1x y C a b +=(0a b >>)的右焦点为(1,0)F ,且点3(1,)2P 在椭圆C 上.(1)求椭圆C 的标准方程;(2)过椭圆22122:153x y C a b +=-上异于其顶点的任意一点Q 作圆224:3O x y +=的两条切线,切点分别为M 、N(M 、N 不在坐标轴上),若直线MN 在x 轴、y 轴上的截距分别为m 、n ,证明:22113m n +为定值; (3)若1P 、2P 是椭圆222223:1x y C a b+=上不同的两点,12PP x ⊥轴,圆E 过1P 、2P ,且椭圆2C 上任意一点都不在圆E 内,则称圆E 为该椭圆的一个内圆,试问:椭圆2C 是否存在过左焦点1F 的内切圆?若存在,求出圆心E 的坐标,若不存在,请说明理由.21. 若{}n c 是递增数列,数列{}n a 满足:对任意*n ∈N ,存在*m ∈N ,使得10m nm n a c a c +-≤-,则称{}n a 是{}n c 的“分隔数列”.(1)设2n c n =,1n a n =+,证明:数列{}n a 是{}n c 的分隔数列;(2)设4n c n =-,n S 是{}n c 的前n 项和,32n n d c -=,判断数列{}n S 是否是数列{}n d 的分隔数列,并说明理由;(3)设1n n c aq -=,n T 是{}n c 的前n 项和,若数列{}n T 是{}n c 的分隔数列,求实数a 、q 的取值范围.参考答案一. 填空题1. 1(,3)3-2. 1i -3. 3(1,)24.35x 5. 126. 8-7. 22841x y -=8. 2009. 4或710. 111222122222n n n n n k S n n k++--⎧+-=-⎪⎪=⎨⎪+-=⎪⎩,*k ∈N11. 2 12. 12n -二. 选择题13. C 14. C 15. B 16. C三. 解答题17.(1)4;(2)arctan4. 18.(1)2a =;(2)8t ≥.19.(1)1r =,260(2r =;(2)54.1°,867.1.20.(1)22143x y +=;(2)34;(3)(E . 21.(1)证明略;(2)不是,反例:4n =时,m 无解;(3)02a q >⎧⎨≥⎩.。

2019-2020学年上海市南洋模范中学高三英语第三次联考试题及答案解析

2019-2020学年上海市南洋模范中学高三英语第三次联考试题及答案解析

2019-2020学年上海市南洋模范中学高三英语第三次联考试题及答案解析第一部分阅读(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项A4 Best Drive--In Movie Theaters in the USColorado: Holiday Twin Drive--InAddress: 2206 S Overland Trail, Fort Collins, CO 80526, USAPhone: +1 970-221-1244The theater, open since 1968 and currently the most popular drive-in in the US, provides various special foods. The menu there even amazes meat-free customers. But please remember the outside food is forbidden here. Besides, the Rocky Mountains provide a pastoral (田园式的) backdrop to screenings, and sunsets usually don’t disappoint either. It also offers lots of unique events that go beyond the big screen.North Carolina: Hound’s Drive--InAddress: 114 Raven Cir, Kings Mountain, NC 28086, USAPhone: +1 704-739-4424Having only opened in 2016, it’s one of the newest theaters on the block. The drive-in features newer equipment and digital projection. People can bring their animal friends along.Florida: Fort Lauderdale Swap ShopAddress: 3291 W Sunrise Blvd, Fort Lauderdale, FL 33311, USAPhone: +1 954-791-7927The Florida favorite offers plenty ofways to have fun. With 14 screens, the self-proclaimed (自称的) world’s largest drive-in equals any indoor cinema in terms of capacity and programming. It also includes an 88-acre flea (跳蚤) market and a free Ferrari museum. It’s best to book tickets on the Internet ahead of time if you don’t want to wait in line.California: Mission Tiki Drive -InAddress: 10798 Ramona Ave, Montclair, CA 91763, USAPhone: +1 909-628-0511Let’s have fun in the old-school outdoor cinema in Montclair, California. Remember tickets are available atthe ticket office only. It alternates (交替) up to eight new releases on four screens and hosts almost daily swap meets where people can exchange things they no longer need. It also organizes classic car and lowrider meet-ups.1.What can people do in Holiday Twin Drive-In?A.Participate in somespecial activities.B.Enjoy the film with the latest equipment.C.Learn about the benefits of being meat free.D.Share home-made cookies while watching the film.2.Which of the following theaters is friendly to visitors with pets?A.Hound’s Drive- In.B.Mission Tiki Drive-In.C.Holiday Twin Drive-In.D.Fort Lauderdale Swap Shop.3.What do Fort Lauderdale Swap Shop and Mission Tiki Drive-In have in common?A.Both feature old-fashioned styles.B.Both allow booking tickets online.C.Both provide free museum exhibitions.D.Both offer chances to trade second-hand goods.BOnce small farmers in Masii, a remote village in Kenya, have picked their crops, all they can do is wait until a buyer trucks through. The system works fairly well for beans and corn, but mangoes-the area’s other main crop-spoil (腐烂) more quickly. If the trader is late, they rot.However, a simple coating could change that. A company, SmartTech, has created a product that doubles the shelf life of fresh produce, enabling farmers to access far-off, larger markets. More time forfresh produce on grocers’ shelves also means less food waste-a $2.6 trillion problem, according to the United Nations’ Food and Agriculture Organization (FAO).James Rogers, CEO of SmartTech, wanted to solve the problem for food much in the same way that oxide barriers preventing rust (锈) have achieved for steel. Fortunately, researchers have found when plants made the jump from water to land, they developed cutin(蜡质), a barrier which is made of fatty acids that link together to form a seal around the plant, helping keep water in.The cutin was such a grand strategy that today you’ll still find it across the plant kingdom. SmartTech discovered through researches that an orange can last longer than a strawberry not so much because of the thickness of its skin, but because of the difference in the arrangement of those cutin molecules (分子)on thesurface. After extensive trials, Rogers and his team developed a natural and tasteless protective coating from plant material-stems, leaves and skins. The product extends the sweet spot between ripening and rot. And best of all, the treated produce doesn’t require refrigeration.“SmartTech has huge potential to turn poor farmers in Africa into commercial farmers,” says Rogers. “That means more money in pockets, and more food in stomachs.” But whether the company can cost-effectively reach small farmers in far-off areas still remains a challenge.4. The author mentions the small farmers in Kenya to ________.A. stress their need for preserving produceB. show their challenge in harvesting cropsC. express their wish to reach larger marketsD. evaluate their loss caused by slow transport5. What can we learn about SmartTech’s product?A. It is financially supported by FAO.B. It is intended to replace refrigeration.C. It is designed to thicken produce’s skin.D. It is based on plants’own defence system.6. What will James Rogers probably focus on next?A. How to expand farms.B. How to earn more money.C. How to produce more tasty food.D. How to profit farmers in remote area.7. The main purpose of the passage is to ________.A. promote a productB. present a technologyC. advertise SmartTechD. introduce James RogersCThe COVID-19 vaccination(接种疫苗)rate in the US has fallen to newlows in recent weeks, threatening President Joe Biden’s goal of having 70 percent of American adults with at least one shot by July 4.With just less than one month from July 4, the current vaccination rate will put the US at somewhere between 67 percent and 68 percent of the adult population with at least one dose(剂量)by Independence Day. To reach 70 percent by July 4, around 1.6 percent of the population needs to get their first dose per week from nowuntil July 4.The Centers for Disease Control and Prevention(CDC)reported last week that 63 percent of adults hadreceived their first dose of a COVID-19 vaccine. That was up slightly from 62 percent from the report a week before. The additional 1 percent of adults completing their first dose is the lowest since the CDC started tracking the vaccination rate in mid-February.On average, fewer than 1 million shots are given out per day, a decline of more than two-thirds from the peak of 3.4 million in April, The Washington Post reported. In South Carolina, about 71,000 residents got a shot in the week leading up to June 3, compared to a high of nearly 300,000 in one week in early April, according to data from the CDC.The slowdown is moreprominentacross the South and Midwest. Twelve states have seen vaccinations fall to 15 daily shots per 10,000 residents. Less than a quarter of black Americans had received their first COVID-19 shot as of June 7.James Hildreth, CEO of Meharry Medical College, told Politico, “We need to make a stronger effort to bring the vaccine to the communities, rather than relying on the communities to come to vaccination centers.”The sharp decline in vaccination began in mid-April when federal officials temporarily stopped the use of the Johnson&Johnson vaccine while they investigated rare blood-clotting(凝血)reactions.The “low-hanging fruit—thosepeople who ly want to get vaccinated without you telling them anything” have already been vaccinated, which has led to the slowdown, Dr Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, said on a White House-organized call with community leaders last week, according to the Post.8. What can we learn from the text?A. Dr Anthony Fauci is in charge of the Centers for Disease Control and Prevention.B. In South Carolina, about 300,000 residents got a shot in the week leading up to June 3C. In mid-April federal officials temporarily suspended the Johnson&Johnson vaccine.D. Less than one fourth of Americans had received their first COVID-19 shot by June 7.9. Which of the following can replace the underlined word “prominent” in Para. 5?A. Meaningful.B. Obvious.C. Inspiring.D. Complex.10. How can America increase the COVID-19 vaccination rate according to James Hildreth?A. By giving the vaccine shot at the communities.B. By offering the vaccine to the public for free.C. By frequently informing the public of the vaccine.D. By urging the communities to come to vaccination centers.11. What can be the best title for the text?A. Biden wishes to have 70% of adults with one shot by July 4B. CDC has been trackingthe vaccination rate since mid-FebruaryC. Some Americans need to get vaccinated without telling them toD. Biden’s July 4th vaccine goal may be missedDIf you believe in thermometers (温度计), you should believe in global warming. And if you believe in eating French fries with your hamburger, you should worry more about carbonemission.It won't happen overnight, but as the planet’s climate changes, the growth cycles of main crops will all be heavily affected. Here are three of the crops that might not beat the heat.The potato actually needs a great deal of beauty rest to develop properly. “They need a cool nighttime temperature in order to start growing the tuber, the part that we eat,” Nelson says.Temperature and altitude are two primary concerns in coffee growth, and farmers are stuck between a rock and a hard place. “We know that coffee grows in a certain temperature range,” Nelson says. “They've been moving up the mountains, but at some point you run out of mountains to move up.” Higher-grade strains of Arabica coffee in Central American regions are at particular risk due to the need for lower growing temperature, especially since diseases and pests are also becoming more of a factor as temperatures rise.Even if you're looking at the direct effects of temperature alone, rice is in trouble. “As nighttime temperatures go up, the rice is going to have a problem flowering and won't make as many seeds,” Nelson says. In addition to this direct heat consequence, rising sea levels will flood many rice paddies and destroy water salinity levels, while droughts will lower production, raise prices, and further shame westerners who are clumsy with chopsticks to be able to clear their plates once a new grain is adopted.12. What is the closest meaning to the underlined word “emission” in Paragraph 1?A. Mixture.B. Pollution.C. Giving off.D. Going down.13. What does the potatoes' development need according to Nelson?A. Cool temperature at night.B. Sudden rise of the temperature.C. Enough water and salt.D. Much sunshine and fresh air.14. The rice is difficult to flower,probably because ________.A. sea levels go up suddenlyB. many seeds can't be producedC. the temperature rises at nightD. both temperature and altitude rise15. What is the best title for the text?A. How Does Global Warming Affect WesternersB. How Does the Cool Temperature Affect RiceC. What Is the Real Reason For Crops’ GrowthD. Three Crops That Won't Survive Climate Changes第二节(共5小题;每小题2分,满分10分)阅读下面短文,从短文后的选项中选出可以填入空白处的最佳选项。

2019-2020学年上海南洋模范高级中学高三生物第三次联考试题及参考答案

2019-2020学年上海南洋模范高级中学高三生物第三次联考试题及参考答案

2019-2020学年上海南洋模范高级中学高三生物第三次联考试题及参考答案一、选择题:本题共15小题,每小题2分,共30分。

每小题只有一个选项符合题目要求。

1. 对下列图示的生物学实验的叙述正确的有几项()a.若图①表示将显微镜镜头由a转换成b,则视野中观察到的细胞数目减少b.若图①是显微镜下洋葱根尖某视野的图像,则向右移装片能观察清楚c细胞的特点c.若在显微镜下观察图①细胞质流动时,发现细胞质的流动方向是顺时针,则细胞质的实际流动方向是逆时针d.若图①是在显微镜下目镜为10×,物镜为10×,视野中被相连的64个分生组织细胞所充满的图像。

目镜不变,物镜换成40×时,则在视野中可检测到的分生组织细胞数为4个e.标本染色较深,观察时应选用凹面反光镜和大光圈f.若转换高倍镜,需要先升镜筒,以免镜头破坏玻片标本A.一项B.两项C.三项D.四项2. 灵菌红素具有抗肿瘤和抑制T细胞介导的免疫反应的功能。

科研人员在橡胶树内生菌ITBBB5-1中发现一个新细胞器——马阔囊胞,该囊胞位于杆状细菌末端。

电镜观察发现,灵菌红素位于马阔囊胞和其分泌的胞外小囊泡中。

下列说法错误的是()A.橡胶树内生菌ITBBB5-1的核膜包含不连续的四层磷脂分子B.新型细胞器马阔囊胞可能具有储存和分泌灵菌红素的功能C.马阔囊胞分泌灵菌红素过程体现了生物膜的结构特点D.灵菌红素在癌症治疗和器官移植中具有潜在的应用价值3. 下列实例中,能说明生命活动离不开细胞的是()①流感病人打喷嚏时,会有大量流感病毒随飞沫散布于空气中①手触碰到盛有沸水的电水壶会迅速缩回①体操运动员完成单杠动作离不开肌肉的收缩和舒张①人的胚胎发育过程中,细胞不断地进行分裂A.①①①B.①①①C.①①①D.①①①①4. 甲、乙两图为生物组织的呼吸方式实验装置图,图中植物呼吸作用释放的CO2被NaOH溶液吸收,使容器内气体压强减小,刻度管内的红墨水滴会发生移动。

2019-2020学年上海市南洋模范中学高三英语第三次联考试卷及答案

2019-2020学年上海市南洋模范中学高三英语第三次联考试卷及答案

2019-2020学年上海市南洋模范中学高三英语第三次联考试卷及答案第一部分阅读(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项AIn his 402nd anniversary year, Shakespeare is still rightly celebrated as a great language master and writer. But he was not the only great master of play writing to die in 1616, and he is certainly not the only writer to have left a lasting influence on theater.While less known worldwide, Tang Xianzu is considered one of Chinas greatest playwrights and is highly spoken of in that country of ancient literary and dramatic traditions.Tang was born in 1550 inLinchuan,Jiangxiprovince. Unlike Shakespeare's large body of plays,poems and sonnets (十四行诗), Tang wrote only four major plays: The Purple Hairpin, Peony Pavilion (《牡丹亭》), A Dream under the Southern bough, and Dream of Handan. The latter three were constructed around a dream narrative, a way through which Tang unlocked the emotional dimension of human desires and ambitions and explored human nature beyond the social and political limits of that time.Similar to Shakespeare, Tang's success rode the wave of a renaissance (复兴) in theater as an artistic practice. As in Shakespeare'sEngland, Tang's works became hugely popular inChinatoo. During Tang'sChina, his plays were enjoyed performed, and changed. Kunqu Opera, a form of musical drama, spread from southernChinato the whole nation and became a symbol of Chinese culture. Combining northern tune and southern music, kunqu Opera was known for its poetic language, music, dance movements and gestures. Tang's works benefited greatly from the popularity of kunqu Opera, and his plays are considered classics of kunqu Opera.While Tang and Shakespeare lived in a world away from each other, there are many things they share in common, such e humanity of their drama, their heroic figures, their love for poetic language, a lasting popularity and the anniversary during which we still celebrate them.1. Why is Shakespeare mentioned in the first paragraph?A. To describe Shakespeare's anniversary.B. To introduce the existence of Tang Xianzu.C. To explain the importance of Shakespeare.D. To suggest the less popularity of Tang Xianzu.2. What's possibly one of the main theme of Tang's works?A. Social reality.B. Female dreams.C. Human emotions.D. Political environment.3. What does the author mainly tell us in Paragraph 4?A. The influence of Kunqu Opera on Tang's works.B. Tang's success in copying Shakespeare's styles.C. The way Kunqu Opera became a symbol of Chinese culture.D. Tang's popularity for his poetic language and music.BIf you struggle to fall asleep quickly, you’re not alone! Fortunately, thereare plenty of solutions you can try. With a few changes, you can fall asleep fast every night!Keep your room dark. Turn off all the lights above your head when you go to bed. Any bright light can make you believe it is too early in the day for sleep. If you want to read or write before bed, try using a small book light. Now that blue lights can keep you awake, red ones are a great choice.If you can, keep noise in and around your room the lowest at night. If you have an old clock that ticks loudly and keeps you awake, replace it with a silent one. If you share your home with anyone else, request that they keep noises like talking, music, or TV shows at the lowest while you are trying to sleep. It is difficult to fall asleep if you live near a busy road or hear other boring sounds after bedtime. You could get a white noise machine or play recordings of nature sounds, like waves or whales’ singing. You could also listen to soft, relaxing music.Read a book in bed if you have difficulty in falling asleep. Staying in bed doing nothing when you’re having trouble falling asleep may keep you wide awake. While reading in bed may be slightly harmful to your eyes, it can distract (分散) you from your thoughts and help you feel sleepy. But remember to read from a print book rather than something with a screen. The light from electronic screens can keep you awake.Lowering your body temperature helps you sleep, so set the room temperature between 15.5℃-21℃could do the trick.4. What color1 book light should you choose toread before bed?A. Red.B. Blue.C. White.D. Orange.5. What is the author’s attitude towards reading in bed?A. Doubtful.B. Worried.C. Favorable.D. Uncaring.6. What can we inferred from the text?A. Reading on cellphones sometimes helps you fall asleep.B. The lower your temperature while sleeping is, the better.C. Bright lights are better for your reading before going to bed.D. Playing recordings like birds’ singing can improve your sleep.7. How does the author organize the text?A. By givingexamples.B. By asking questions.C. By offering suggestions.D. By listing research results.CBack about 20 months ago I started college and just struggled with everything, such as classes and friends. I quickly became depressed and angry at myself for not being about to do better in school, in addition to lack of friends due to poor social and communication skills.This went on for months until my 19th birthday. My parents sent me a cake, which was a great cake. But I remember having this large cake and ly no one to share it with. I ended throwing out the cake after having one piece, with about 90 % of it leftover. That night I was depressed that I decided to go outside to the freezing temperature of the winter and run. I put my earphones in, went outside and ran about 2 miles at 11 p.m. on my birthday.When I got back inside I was content. I was proud of what I was able to do. The next night I did the same. I wasn’t quick or fit but you know that I went outside and did something. This continued for about 2 months until I finally worked up the courage to go to the gym, where I started swimming again as I used to in high school. A month went by and I started lifting weights and continually running.Looking back I can see that exercise helped cure my depression but it didn’t only do that. At the gym I met new friends and back at my dorm I grew confidence to go to the end of the hall seeing people playing Super Smash Brothers and ask if I could join.So go forward to present now. I exercise every day and look forward to that hour and a half I get daily to do what I love with people who love it as well. I hope this helps someone who may be or have been in a similar situation.8. What made the author decide to run at night?A. His l9th birthday.B. His parents’ cake.C. His loneliness.D. His friends.9. Which of the following best describes the author?A. Traditional.B. Determined.C. Humorous.D. Generous.10. What is the biggest benefit of the author’s running?A. Regaining his confidence.B. Losing his weight.C. Playing with his brothers.D. Joining other activities.11. Why do you think the author wrote this passage?A. To recall his life in college.B. To show his gratitude to his parents.C. To emphasize the importance of friendship.D. To share his experience of dealing with hardship.DMark Twain,the famous American writer,was once traveling in France.He went by trainto Dijon.He was very tired and wanted to sleep.He therefore asked the conductor to wake him up when the train came to Dijon.But first he explained he was a very heavy sleeper,“I may possibly protest(抗议)loudly when you try to wake me up,” he said to the conductor.“But don’t take any notice of what I say.Just put me off the train anyway.”Then Mark Twain went to ter,when he woke up it was night time and the train had reached Paris already.He realized at once that the conductor had forgotten to wake him up at Dijon.He was so angry that he ran to the conductor and began to shout at him.“I have never been so angry in my life,” Mark Twain said.The conductor looked at him calmly(平静地).“You are not half so angry as the American whom I put off the train atDijon,” he said.12. Mark Twain knew that he was a heavy sleeper,so ________.A. he protested loudly to the conductorB. he did not sleep before he arrived inDijonC. he told the conductor to wake him up no matter how loudly he might protestD. he slept lightly that time13. The conductor didn’t wake up Mark Twain atDijonbecause ________.A. he didn’t take Mark Twain’s words seriouslyB. he forgot Mark Twain’s words when the train came toDijonC. he did not want to bear his protestD. he mistook another American traveler for Mark Twain14. The American whom the conductor put off the train ________.A. did not want to get off atDijonB. wanted to get off atParisC. wanted to get off atDijonD. did not want to get off atParis15. Which of the following is TRUE?A. The conductor didn’t take Mark Twain’s words seriously.B. The conductor did take Mark Twain’s words seriously.C. The conductor was a heavy sleeper.D. Mark Twain must get off atParis.第二节(共5小题;每小题2分,满分10分)阅读下面短文,从短文后的选项中选出可以填入空白处的最佳选项。

上海市南洋模范中学2019届高三下学期3月月考数学试题

上海市南洋模范中学2019届高三下学期3月月考数学试题

2018学年南模中学高三年级三月份月考卷2019.3.6注意事项:1.答卷前,考生务必用黑色字迹的钢笔或签字笔在答题卡上填写自己的准考证号、姓名、试室号和座位号。

用2B 型铅笔把答题卡上试室号、座位号对应的信息点涂黑。

2.选择题每小题选出答案后,用2B 型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。

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的相应位置上;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整洁。

考试结束后,将试卷和答题卡一并交回。

一、填空题1.已知全集U R =,若集合01x A xx ⎧⎫=>⎨⎬-⎩⎭,则U C A =_________.2.双曲线2226x y -=的焦距为__________.3.已知61ax x ⎛⎫+ ⎪⎝⎭二项展开式中的第五项系数为152,则正实数a =__________.4.已知函数()3113x f x a x a +⎛⎫=≠ ⎪+⎝⎭的图像与它的反函数的图像重合,则实数a 的值为________.5.设x ,y 满足约束条件360200,0x y x y x y --≤⎧⎪-+≥⎨⎪≥≥⎩,则目标函数2z x y =+的最大值为__________.6.从集合{}1,1,2A =-中随机选取一个数记为k ,从集合{}2,1,2B =-中随机选取一个数记为b ,则直线y 不经过第三象限的概率为________.7.设1F ,2F 是双曲线22124y x -=的两个焦点,P 是双曲线上的一点,且1234PF PF =,则12PF F ∆的周长为________.8.已知四面体ABCD 中,2AB CD ==,E ,F 分别为BC ,AD 的中点,且异面直线AB 与CD 所成的角为3π,则EF =________. 9.已知函数()f x 是定义在R 上的奇函数,当0x <时,()26f x x =-,则0x >时,不等式()f x x <的解集为_______.10.关于x 的方程11sin 211x x π=--在[]4,4-上的解的个数是___________.11.任意实数a ,b ,定义,0,0ab ab a b a ab b≥⎧⎪⊗=⎨<⎪⎩,设函数()()2log f x x x =⊗,数列{}n a 是公比大于0的等比数列,且61a =,()()()()()12391012f a f a f a f a f a a +++++=,则1a =___________.12.以正方形的四个顶点分别作为椭圆的两个焦点和短轴的两个端点,A ,B ,M 是椭圆上的任意三点(异于椭圆顶点),若存在锐角θ,使cos sin O M O A O B θθ=⋅+⋅,则直线OA ,OB 的斜率乘积为_________.二、选择题 13.“112x <<”是“不等式11x -<成立”的( ) A.充分条件B.必要条件C.充分必要条件D.既非充分也不必要条件14.给出下列命题,其中正确的命题为( )A.若直线a 和b 共面,直线b 和c 共面,则a 和c 共面;B.直线a 与平面α不垂直,则a 与平面α内的所有直线都不垂直;C.直线a 与平面α不平行,则a 与平面α内的所有直线都不平行;D.异面直线a ,b 不垂直,则过a 的任何平面与b 都不垂直.15.已知数列{}n a 的通项公式为()()*11n a n N n n =∈+,其前n 项和910n S =,则双曲线2211x y n n -=+的渐近线方程为( )A.3y x =±B.4y x =±C.y x =D.y x = 16.已知平面直角坐标系中两个定点()3,2E ,()3,2F -,如果对于常数λ,在函数224y x x =++--,[]4,4x ∈-的图像上有且只有6个不同的点P ,使得PE PF λ⋅=成立,那么λ的取值范围是( )A.95,5⎛⎫-- ⎪⎝⎭B.9,115⎛⎫- ⎪⎝⎭C.9,15⎛⎫-- ⎪⎝⎭D.()5,11-三、解答题17.如图,在圆锥SO 中,AB 为底面圆O 的直径,点C 为AB 的中点,SO AB =.(1)证明:AB ⊥平面SOC ;(2)若点D 为母线SC 的中点,求AD 与平面SOC 所成的角.(结果用反三角函数表示)18.已知函数()()2sin 2cos 2cos 26x x f x x R x ππ⎛⎫- ⎪=∈⎝⎭⎛⎫+ ⎪⎝⎭. (1)求()f x 的最小正周期及判断函数()f x 的奇偶性;(2)在ABC ∆中,()0f A =,AC m =,[]2,4m ∈,若任意实数t 恒有AB t AC BC -≥,求ABC ∆面积的最大值.19.数列{}n a 满足:12a =,12n n n a a λ+=+⋅,且1a ,21a +,3a 成等差数列,其中*n N ∈.(1)求实数λ的值及数列{}n a 的通项公式; (2)若不等式21625np p n a +≤-成立的自然数n 恰有4个,求正整数p 的值.20.教材曾有介绍:圆222x y r +=上的点()00,x y 处的切线方程为200x x y y r +=。

2019-2020学年上海南洋模范高级中学高三英语第三次联考试题及答案

2019-2020学年上海南洋模范高级中学高三英语第三次联考试题及答案

2019-2020学年上海南洋模范高级中学高三英语第三次联考试题及答案第一部分阅读(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项ANo one knows when the first printing press was invented or who invented it. but the oldest known printed text originated in China during the first millennium (千年) AD.The Diamond Sutra (《金刚经》), a Buddhist book from Dunhuang, China during the Tang Dynasty, is said to be the oldest known printed book.The Diamond Sutrawas created with a method known as block printing (雕版印刷), which used boards of hand-carved wood blocks in reverse.It was said that the moveable type was developed by Bi Sheng. He was fromYingshan,Hubei,China, living from 970 to 1051 AD. His method replaced panels of printing blocks with moveable individual Chinese characters that could be reused. The first moveable Chinese Characters were carved into clay and baked into hard blocks that were then arranged onto an iron frame that was pressed against an iron plate.The earliest mention of Bi Sheng’s printing press is in the bookDream Pool Essays, written in 1086 by Shen Kuo, who noted that his nephews came into possession of Bi Sheng’s typefaces (字体) after his death. Shen Kuo explained that Bi Sheng did not use wood because the texture is inconsistent (不一致的) and absorbs wetness too easily.By the time of the Southern Song Dynasty, which ruled from 1127 to 1279 AD, books had become popular in society and helped create a scholarly class of citizens who had the capabilities to become civil servants. Large printed book collections also became a status symbol for the wealthy class.1. When was Bi Sheng’s printing press first introduced in history?A. After Bi Sheng died and his nephews owned his typefaces.B. When books became popular in the Southern Song Dynasty.C. After the block printing was replaced by the moveable type printing.D. WhenThe Diamond Sutrawas printed into a book.2. What can we infer from the passage?A. Shen Kuo made great contributions to printing.B. The moveable type printing was invented earlier than block printing.C. Printed books were hard to get in the Song Dynasty.D. By the Southern Song Dynasty, books had helped people get to higher social positions.3. Why does the author write this passage?A. To show that Buddhism was popular in the Tang Dynasty.B. To introduce the early history of printing.C. To memorize Bi Sheng, developing the moveable type printing.D. To indicate the advantages of moveable type printing.BIt was the first day of spring here but it didn't feel like it. The COVID-19 epidemic (流行病) was sweeping the globe and everywhere there were feelings of fear and loneliness. “Social Distancing” had become the new norm. Here the schools had been closed, the restaurant dining rooms had been shut, and people had been told to work from home whenever they could. Even the sheltered workshop where my oldest son worked had been closed until further notice. People had made a run on the stores and large areas of the shelves were bare. On the news the numbers of the sick and dead continued to rise. It felt like there was a weight on the souls of everyone in the world.My family were staying at home as much as possible and as I looked out of my window I wondered how long this crisis would last. It was then, however, that I saw something that lifted that weight off of my soul, made me smile, and made my heart feel happy again. On the street below my house there was an old friend of mine from high school who was a teacher there. With him was my younger son's former aide from the high school as well. They were delivering the school lunches door to door to the hungry children who were stuck at home. Watching them made me think of something everyone's childhood television neighbor, Mr. Roger's once said: "In the bad times, always look for the helpers."I have no doubt that this crisis will pass as all the crisis before. But it is our choice on whether it brings out the best in us or the worst in us. Let it bring out the best in you. Use it to strengthen your faith. Use it to free yourself from fear. Use it to grow kinder, more giving, and more loving. Become a helper to all those in need and you will be a happy person today and all the days to come.4. Why didn't the author like the first day of spring?A. He had to work at home instead of at office.B. There wasn't social distance between each other.C. There was an epidemic everywhere in the world.D. His own company had been closed for a long time.5. How did people feel in the face of the epidemic?A. Disappointed.B. TenseC. Confident.D. Cheerful.6. What made the author happy?A. Seeing someone delivering lunches from door to door.B. Talking with his old friend in the street.C. Watching a childhood television at home.D. Staying together with his family.7. What do Mr. Roger's words actually mean?A. It's not necessary for us to find helpers in bad times.B. In good times we needn't do much to help others.C. We should ask more people to help us in bad times.D. We are supposed to help each other in bad times.CPeople saved a 20-foot orca (虎鲸) that was stuck between rocks on an Alaskan shore by continuously pouring water over it and protecting it from birds who circled above the defenseless whale.The whale was ultimately saved after a six-hour, labor-intensive life-saving operation. Someone spotted the large whale on the Prince of Wales Island near the coast of British Columbia on the morning of July 29th. The Coast Guard was called around 9 a.m. local time. Chance Strickland, the captain of a private yacht in Alaska, and his crew anchored and began life-saving action that were videoed by Aroon Melane and posted on the Internet.Strickland could hear the orca calling out to killer whales swimming in the area. People on other boats stopped with water and buckets to pour water over the animal. “There were tears coming out of its eyes,” Mr. Strickland told the local newspaper. “It was pretty sad.”The group of people formed a chain that passed buckets of seawater back and forth and poured the water on the orca, which seemed to liven it up. It made a noise and raised its tail when it got water.The National Oceanic and Atmospheric Administration (NOAA) was called in, which can be seen on the video using a machine to spray amist of seawater on the orca, which doubled as a way to keep the whale cool and scare the large group of birds that were hoping to feast on the beast.Melane said in her video that the orca was stranded (搁浅) for about six hours until the tide came in andswept it back into the ocean. The group efforts of Strickland’s crew and the NOAA saved the 13-year-old killerwhale.8. Why did birds circle above the orca?A. They were eager to eat it.B. They wished to protect it.C. They were attracted by the people.D. They wanted to find a place to rest.9. What did Strickland do immediately after finding the whale?A. Posted pictures online.B. Called friends for help.C. Took action to save it.D. Videoed the trapped animal.10. Why did the whale make a noise and raise its tail?A. To express its eager for water.B. To extend its thanks to people.C. To call out to its fellow whales.D. To show its power and sadness.11. Which can be the best title for the text?A. Killer Whale Got SavedB. The Orca Inspired KindnessC. Combined Efforts WantedD. Animals and Humans UnitedDMichele Gentile, an Italian bookseller, is offering free books to children in exchange for plastic bottles to recycle.Michele owns Ex Libris Cafe in Polla,a small town in southern Italy. He said he thought of the recycling program, because he wanted to inspire children in the small town to read and pay attention to the environment.''My goal is to spread the passion and love for books among those people in Italy who do not usually read while at the time helping the environment," Gentile explained.The idea for the initiative (倡议) came after Gentile collaborated with a nearby middle school on an aluminum recycling project. Working together, the schoolchildren and Gentile collected enough cans to purchase books for an entire classroom. His new program too off from there and has already spread into northern Italy: Gentile's hopes his work will continue to make headlines and become a worldwide initiative.The free books come from customers in Gentile's shop who have donated money to purchase a ''suspended" book. The idea comes from a World War II practice in which customers would buy two Coffees: one for themselves and another for the next person in line. Gentile has been using the extra books as part of his recycling initiative, While Gentile's program is a great way to recycle and get kids to read, it also brings awareness to the growing problem of plastic waste. Single-use plastics make up around 26 percent of all the plastics in the world, only 14 percent of which are recycled. Plastics that end up in landfills take around 500 years to decompose (分解),is amajor concern for environmentalists.Cutting down on plastic waste is important if we want to better the environment for future generations, and recycling programs like Gentile's book giveaway are a great way to meet that goal.12. What is the purpose of Gentile's book giveaway?A. To sell more coffee and books.B. To attract more customers.C. To collect money for a new project.D. To inspire reading and recycling.13. How did Gentile come up with the idea?A. Working with a school to recycle cans.B. Seeing school kids don't like reading.C. Donating books for a local school.D. Buying a “suspended” book for a child.14. Who pay for the books of the project?A. The local government.B. Gentile himself.C. Some publishers.D. His customers.15. Whichof the following is the best title for the text?A. An Italian's Reading InitiativeB. Recycling Can Get Kids Free BooksC. Michele's Way of Doing BusinessD. A New Way to Deal with Plastic Waste第二节(共5小题;每小题2分,满分10分)阅读下面短文,从短文后的选项中选出可以填入空白处的最佳选项。

上海市南洋模范中学2019届高三下学期3月月考数学试题(解析版)

上海市南洋模范中学2019届高三下学期3月月考数学试题(解析版)

2018学年南模中学高三年级三月份月考卷数学2019.3.6一、填空题。

1.已知全集,若集合,则_________.【答案】【解析】【分析】求出集合A,即可求解∁U A【详解】全集U=R,集合A={x|x>1或x<0}则=故答案为【点睛】本题考查集合的基本运算,补集的求法,分式不等式解法,准确计算是关键,是基础题.2.双曲线的焦距为__________.【答案】6【解析】【分析】将双曲线的方程化为标准方程,求得a,b,c,可得焦距2c的值.【详解】双曲线2x2﹣y2=6即为1,可得a,b,c3,即焦距为2c=6.故答案为:6.【点睛】本题考查双曲线的简单几何性质,焦距的求法,注意将双曲线的方程化为标准方程,运用双曲线的基本量的关系,考查运算能力,属于基础题.3.已知二项展开式中的第五项系数为,则正实数_____.【答案】【解析】【分析】由二项式定理的通项公式可得:,解出即可得出.【详解】T5x﹣2,∴,a>0.解得a.故答案为:.【点睛】本题考查了二项式定理的应用,考查了推理能力与计算能力,准确计算是关键,属于基础题.4.已知函数的图像与它的反函数的图像重合,则实数的值为___.【答案】-3【解析】【分析】先求反函数:y,利用函数f(x)(a)图象与它的反函数图象重合,即为同一个函数即可得出.【详解】由y(a),解得x(y≠3),把x与y互换可得:y,∵函数f(x)(a)图象与它的反函数图象重合,∴﹣a=3,解得a=﹣3.故答案为:﹣3.【点睛】本题考查了反函数的求法及其性质,考查了推理能力与计算能力,属于中档题.5.设,满足约束条件,则目标函数的最大值为_____.【答案】14【解析】【分析】画出可行域,通过向上平移基准直线到可行域边界的位置,由此求得目标函数的最大值.【详解】画出可行域如下图所示,由图可知,目标函数在点处取得最大值,且最大值为.【点睛】本小题主要考查利用线性规划求线性目标函数的最大值.这种类型题目的主要思路是:首先根据题目所给的约束条件,画出可行域;其次是求得线性目标函数的基准函数;接着画出基准函数对应的基准直线;然后通过平移基准直线到可行域边界的位置;最后求出所求的最值.属于基础题.6.从集合中随机选取一个数记为,从集合中随机选取一个数记为,则直线不经过第三象限的概率为_____.【答案】【解析】【分析】将试验发生包含的事件(k,b)的所有可能的结果列举,满足条件的事件直线不经过第三象限,符合条件的(k,b)有2种结果,根据古典概型概率公式得到结果.【详解】试验发生包含的事件(k,b)的取值所有可能的结果有:(﹣1,﹣2);(﹣1,1);(﹣1,2);(1,﹣2);(1,1);(1,2);(2,﹣2);(2,1);(2,2)共9种结果.而当时,直线不经过第三象限,符合条件的(k,b)有2种结果,∴直线不过第三象限的概率P,故答案为.【点睛】本题考查古典概型,古典概型要求能够列举出所有事件和发生事件的个数,属于基础题.7.设,是双曲线的两个焦点,是双曲线上的一点,且,则的周长为___. 【答案】24【解析】【分析】先由双曲线的方程求出|F1F2|=10,再由3|PF1|=4|PF2|,运用双曲线的定义,求出|PF1|=8,|PF2|=6,由此能求出△PF1F2的周长.【详解】双曲线x21的a=1,c5,两个焦点F1(﹣5,0),F2(5,0),即|F1F2|=10,由3|PF1|=4|PF2|,设|PF2|=x,则|PF1|x,由双曲线的定义知,x﹣x=2,解得x=6.∴|PF1|=8,|PF2|=6,|F1F2|=10,则△PF1F2的周长为|PF1|+|PF2|+|F1F2|=8+6+10=24.故答案为:24.【点睛】本题考查双曲线的定义和性质的应用,考查三角形周长的计算,熟练运用定义是关键,属于基础题.8.已知四面体中,,,分别为,的中点,且异面直线与所成的角为,则____. 【答案】1或【解析】【分析】取BD中点O,连结EO、FO,推导出EO=FO=1,,或,由此能求出EF.【详解】取BD中点O,连结EO、FO,∵四面体ABCD中,AB=CD=2,E、F分别为BC、AD的中点,且异面直线AB与CD所成的角为,∴EO∥CD,且EO,FO∥AB,且FO1,∴∠EOF是异面直线AB与CD所成的角或其补角,∴,或,当∠EOF时,△EOF是等边三角形,∴EF=1.当时,EF.故答案为:1或.【点睛】本题考查异面直线所成角的应用,注意做平行线找到角是关键,解题时要认真审题,注意空间思维能力的培养,是易错题9.已知函数是定义在上的奇函数,当时,,则时,不等式的解集为____. 【答案】【解析】【分析】由奇函数的性质可得x>0时的解析式,再解不等式即可.【详解】∵函数f(x)是定义在R上的奇函数,∴当x>0时,﹣x<0,∴f(﹣x)=x2﹣6,由奇函数可得f(x)=﹣x2+6,∴不等式f(x)<x可化为,解得x>2∴x>0时,不等式f(x)<x的解集为:(2,+∞)故答案为:(2,+∞)【点睛】本题考查函数的奇偶性,涉及不等式的解法,熟记奇函数得定义是关键,属基础题.10.关于的方程在上的解的个数是____.【答案】7【解析】【分析】化简y=从而作函数的图像,从而可解【详解】化简y=,作函数在上的图像如下:结合图像可知,两个图像共有7 个交点故答案为7【点睛】本题考查函数与方程,函数的性质,三角函数,准确作图是关键,是中档题11.任意实数,,定义,设函数,数列是公比大于0的等比数列,且,,则____.【答案】4【解析】【分析】f(x)=,及其数列{a n}是公比大于0的等比数列,且=1,对公比q分类讨论,再利用对数的运算性质即可得出.【详解】由题,∵数列{a n}是公比大于0的等比数列,且,①1<q时,,,…,∈(0,1),,,∈(1,+∞),1.∴,分别为:,,…,,1,q,…,q4.∵∴0++…+=,∴q4q q2.∴2.左边小于0,右边大于0,不成立,舍去.②0<q<1时,1,∴,分别为:,,…,,1,q,…,q4,,,…,∈(1,+∞),,,∈(0,1),∵∴log2q2.∴2.∴4,∴a1=4.③q=1时,=…==…==1,不满足舍去.综上可得:=4.故答案为:4.【点睛】本题考查了等比数列的通项公式及其性质、对数的运算性质,考查了分类讨论方法、推理能力与计算能力,属于难题.12.以正方形的四个顶点分别作为椭圆的两个焦点和短轴的两个端点,,,是椭圆上的任意三点(异于椭圆顶点),若存在锐角,使,(0为坐标原点)则直线,的斜率乘积为___. 【答案】或-2【解析】设椭圆方程为,A(,),B(,),从而得到的坐标表示,然后,再根据M点在该椭圆上,建立关系式,结合A、B点在也该椭圆上,得到,,从而得到相应的结果,同理当椭圆方程为可得答案【详解】由题意可设椭圆方程为,又设A(,),B(,),因为M点在该椭圆上,∴,则又因为A、B点在也该椭圆上,∴,∴,即直线OA、OB的斜率乘积为,同理当椭圆方程为时直线OA、OB的斜率乘积为﹣2.故答案为:或﹣2.【点睛】本题重点考查椭圆综合,平面向量的坐标运算,注意审题仔细,要注意分类讨论椭圆的焦点位置,属于中档题.二、选择题。

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求得余下 9 项的和为 185,则此连续 10 项的和为
(单位:米),要求圆 M1 与 AB 、 AD 分别相切于点 B 、 D ,圆 M 2 与 AC 、 AD 分别相切于点 C 、 D .
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5 10. 已知数列{an} 的通项公式为 an (1)n n 2n ( n N* ),则这个数列的前 n 项和为 Sn
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2
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南模中学高三三模数学试卷
一. 填空题
1. 若集合 A {x | 3x 1 0} , B {x || x 1| 2} ,则 A B
2. 若复数 z 满足 1 i i ,其中 i 为虚数单位,则 z z
3. 若函数 f (x) 1 1 ( x 0 )的反函数为 f 1(x) ,则不等式 f 1(x) 2 的解集为 x
造价是多少?(结果分别精确到 0.1°和 0.1 千元)
20.
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