河南省周口中英文学校2015-2016学年高二英语下学期期中试题
高二英语月考试题及答案-周口中英文学校2015-2016学年高二上学期第一次考试
周口中英文学校2015-2016学年上学期月考试试卷高二英语考试时间100分钟满分150分第一部分:听力（30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，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。
AHundreds of years ago, a Roman army came north from England to make war on Scotland. The Scots, a brave people, love their country. They fought hard to drive the enemy out of Scotland. But there were too many of the Romans. It looked as if the Romans would win.One night, the leader of the Scots marched his soldiers to the top of a hill. “We will rest here tonight, my men,” he said, “Tomorrow we will fight one more battle①. We must win, or we will die.”They were all very tired. So they ate their supper quickly and fell asleep. There were four guards on duty, but they were very tired, too, and one by one, they fell asleep.The Romans were not asleep. Quickly they gathered at the foot of the hill. Slowly they went up the hill. Closer they came to the sleeping Scots. They were almost at the top. A few minutes more the war would be over. Suddenly, one of them put his foot on a thistle (蓟). He cried out and his sudden cry woke the Scots. In a minute they were on their feet and ready for a battle. The fighting was hard, but it did not last long. The Scots wiped out the Romans and saved Scotland②.The thistle is not a beautiful plant. It has sharp needles all over it. Few people liked it. But the people of Scotland liked it so much that they made it their national flower.21. Hundreds of years ago, the Romans ____ .A. came from the north through England to make war on ScotlandB. came to the north Scotland from England to make war on ScotlandC. came from the north of England to fight the ScotsD. came to the north from the south of Britain to fight the Scots22. At the shout of a Roman soldier, all the Scots who were asleep at the hill ____ .A. began to fight the Romans hardB. stood up without putting on their shoes and began to fightC. woke and rose immediately, ready to fightD. put their feet into their shoes at once and were ready to fight23. The result of the war is that ____ .A. the Romans killed all the ScotsB. the Scots were defeatedC. the Scots were driven out of ScotlandD. the Scots defeated the Romans24. The Scots made thistle their national flower because thistle ____ .A. is lovely, though not beautifulB. gave them happinessC. is a kind of useful plantD. helped the Scots in wiping out the RomaBDo you like to eat out? Do you like to eat quickly? Do you like inexpensive food? Some people go to fast-food restaurants for these reasons. In the past, people usually went to diners（小餐馆）for these reasons. In fact, many people in the States still go to diners today for the same reasons.A man named Walter Scott had the first “diner” in 1872. It wasn’t a real diner. It was only a food cart. People on the street walked up to the cart to buy food. These carts served late-night workers who wanted a cup of coffee and a late-night meal. The meal was a sandwich or boiled eggs. In 1887, Samuel Jones built the first diner big enough to allow the customers to come inside. However, they did not sit down. Later, people built diners with counters and stools, and people sat down while they ate.Before long, many diners stayed open around the clock. In other words, people were able to eat in diner at any time. Diners changed in other ways, too. The original menu of sandwiches and coffee became bigger. It included soup, favorite dishes, and a breakfast menu. In addition, diners soon became permanent buildings. They were no longer carts on wheels.Diners today look similar to the diners of the early 1900s. They are usually buildings with large windows. Inside, the diners have shining counters with stools, booths, and tables and chairs. People can eat all three meals in a modern diner.Today, many people eat in fast-food restaurants such as McDonald’s and Burger King.However, the diner remains an American tradition, and thousands of people still enjoy eating there. It was popular a century ago, and it is still popular today.25. A man named Walter Scott had the first “diner” in 1872. Why is the word “diner” in quotationmarks(引号)？A．Because it is spelled differently from “ dinner”B．Because the first diner was not what it is nowC．Because diner was a new wordD．Because it is a special kind of restaurant26. According to paragraph 3, diners changed in __________A. Two waysB. three waysC. four waysD. five ways27. Which of the following is NOT true according to the passage?A.Diners existed before a fast-food restaurantB.The menu included more food than sandwiches and coffeeC.Burger King is a fast-food restaurantD.Sandwiches became bigger28. The main idea of the passage is that ______________.A. The diner is a traditional, popular place to eat in the United StatesB. Samuel Johns built the first diner big enough to allow the customers to come insideC. American diners serve many types of food 24 hours a day to their customersD. Diners are different from fast-food restaurants in many waysC．Lillian Hanson, a college student, expects to graduate in about two years. What makes Mrs. Hanson different from her classmates is her age-----73 years. She has been studying at college, a few courses at a time, for 27 years.When Lillian Hanson graduated from high school, she went to the bank to borrow money for further education. The banker gave her no encouragement. He didn’t think that a country girl should borrow money to go to college. He thought she should be at home doing work in the house or around the farm. So Lillian Hanson went home and raised a family of nine children instead of going to college. Mrs. Hanson never forgot her dream of getting a higher education. When her children were grown, she tried again.She finds that it is the hardest part of going back to school at her age to sit in class for long periods of time. Because she is not as quick as she used to be, Mrs. Hanson often gets up and walks around classes to keep from getting stiff(不灵活). At the beginning of a course in using the computer, the other students all stood up to give her a warm welcome when she introduced herself and explained why she was there and what her aims were.29. Mrs. Hanson couldn’t go to college immediately after she graduated from high school because ____________.A. she hadn’t got enough moneyB. she was a country girlC. the banker ordered her not to borrow any moneyD. the banker thought she should raise a family of nine children30. The computer students welcomed Mrs. Hanson warmly because ______.A. she had got an excellent result in the examB. she was good at telling funny storiesC. they wanted to get her help in their studiesD. they were deeply moved by her spirit31. Mrs. Hanson is the sort of person who ________.A. cares for study very muchB. likes to borrow money from the bankC. never misses a chance to talkD. tries to save any money for her family32. In which order did Mrs. Hanson do the following things?a. she began her studies at college.b. She finished high school.c. She got married and gave birth of nine children.d. She had her 73 rd birthday.e. She went to the bank to borrow money.A. a c b e dB. b e c a dC. b c e d aD. e d a c bDThis March is a busy month in Shanghai. There’s a lot to do. Here are the highlights.Live Music—Late Night JazzEnjoy real American jazz from Herbie Davis, the famous trumpet player. He’s coming with his new 7-piece band, Herbie’s Heroes. Herbie is known to play well into the early hours, so don’t expect to get much sleep. This is Herbie’s third visit to Shanghai. The first two were sold out, so get your tickets quickly.Scottish DancingTake your partners and get ready to dance till you drop. Scottish dancing is fun and easy to learn. Instructors will demonstrate the dances. The live band, Gordon Stroppie and the Weefrees, are also excellent.Exhibitions—Shanghai MuseumThere are 120,000 pieces on show here. Your can see the whole of Chinese history under one roof. It’s always interesting to visit, but doubly so at the moment with the Egyptian Tombs exhibition. There are lots of mummies and more gold than you’ve ever seen before. Let us know if you see a mummy move!Dining –Sushi chef in townSushi is getting really big in Shanghai. In Japan, it’s become an art form .The most famous Sushi ‘artist’ is Yuki Kamura .She’s also one of the few female chefs in Japan. She’ll be at Sushi Scene all of this month.For a full listing of events, see our website.33. Suppose you are going to attend an activity at 8:00p.m. on Saturday, which one can you choose?A. Live Music—Late Night JazzB. Scottish dancingC. Exhibitions –Shanghai MuseumD. Dining—Sushi chef in town34. Which of the following is true according to the advertisements?A. Scottish dancing is so interesting and easy that it never tires you out .B. The performance given by the American jazz band won’t last long .C. Sushi is not popular in Shanghai as it is a kind of Japanese traditional food.D. It is more interesting to visit Shanghai Museum for the exhibits from Egypt.35. From the text we may learn that Kamura is _________.A. a cookB. a waitressC. an instructorD. an artist第二节(共5小题：每小题2分, 满分l0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, 选项中有两项为多余选项。
城固县第一中学2015-2016学年高二下学期期中考试英语试题含答案试题
2015-2016学年高二下期期中英语试卷本试题分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分，满分150分，考试时间120分钟。
注意事项：1．答题前，考生务必将自己的学校、班级、姓名、考号用0.5毫米的黑色签字笔填写在答题卡上，并检查条形码粘贴是否正确。
2．选择题（1-60）使用2B铅笔填涂在答题卡对应题目标号的位置上，非选择题用0.5毫米的黑色签字笔书写在答题卡的对应题框内，超出答题区域书写的答案无效；在草稿纸、试题卷上答题无效。
3．考试结束以后，将答题卡收回。
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，并标在试卷的相应位置，听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题，每段对话仅读一遍。
1. How much should the man’s rent be?A. $500.B. $150.C. $125.2. What will the woman probably think of the man?A. He used to be an excellent athlete.B. He is a real sportsman.C. He is a sports fan.3. What has the man been doing?A. Filling out a form..B. Having an interviewC. Asking for information.4. What do we know about the woman?A. She is too busy to go.B. She’s willing to go swimming.C. She doesn’t want to wait long.5. What does the woman mean?A. It’s terrible to go abroad alone.B. It doesn’t matter if the man is not good at English.C. The man should improve his English.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。
河南省周口中英文学校2016-2017学年高二下学期期中考试数学(文)试题
周口中英文学校2016-2017学年下期高二期中考试文科数学试卷一、选择题：本大题共12小题，每小题5分，满分60分；每小题给出的四个选项中只有一项是符合题目要求的．1．已知某车间加工零件的个数x 与所花时间y (单位：h)之间的线性回归方程为y ^＝0.01x ＋0.5，则加工600个零件大约需要( )A ．6.5 hB ．5.5 hC ．3.5 hD ．0.5 h2．为了考察两个变量x 和y 之间的线性相关性，甲、乙两位同学各自独立做了10次和15次试验，并且利用线性回归方法，求得回归直线分别为l 1、l 2，已知两人所得的试验数据中，变量x 和y 的数据的平均值都相等，且分别是s 、t ，那么下列说法正确的是( )A ．直线l 1和l 2一定有公共点(s ，t )B ．直线l 1和l 2相交，但交点不一定是(s ，t )C ．必有l 1∥l 2D ．l 1与l 2必定重合3. 设a >0，b >0，且a ＋b ≤4，则有( )A ．1ab ≥12B ．1a 2＋b 2≤14C ．ab ≥2D ．1a ＋1b ≥14. 分类变量X 和Y 的列联表如下：则( )A ．ad －bcB ．ad －bc 越大，说明X 与Y 的关系越强C ．(ad －bc )2越大，说明X 与Y 的关系越强D ．(ad －bc )2越接近于0，说明X 与Y 的关系越强5. 按照下图的程序计算，若开始输入的值为3，则最后输出的结果是( )A ．6B ．21C ．156D ．2316. 已知变量x 、y 呈线性相关关系，且回归直线为y ^＝3－2x ，则x 与y 是( ) A ．线性正相关关系 B ．线性负相关关系 C ．非线性相关D ．无法判定其正负相关关系 7. 复数13)31(2-+i i 的值是（ ）A ．2B ．21C ．21-D ．2-8．.已知结论：“在正三角形ABC 中，若D 是边BC 的中点，G 是三角形ABC 的重心，则AGGD ＝2”．若把该结论推广到空间，则有结论：“在棱长都相等的四面体ABCD 中，若△BCD 的中心为M ，四面体内部一点O 到四面体各面的距离都相等”，则AOOM 等于( )A ．1B ．2C ．3D ．49. 若z ＝sin θ－35＋i(cos θ－45)是纯虚数，则tan θ的值为( )A ．±34B ．±43C ．34D ．－3410. 根据下列各图中三角形的个数，推断第20个图中三角形的个数是( )A ．231B ．200C ．210D ．19011. ．阅读下边的程序框图，运行相应的程序，则输出i 的值为( )A ．2B ．3C ．4D ．512不等式|x ＋3|－|x －1|≤a 2－3a 对任意实数x 恒成立，则实数a 的取值范围为( )．A ．(－∞，－14，＋∞)B ．(－∞，－25，＋∞)C ．D ．(－∞，12，＋∞)二．填空题: 本大题共4小题，每小题５分，满分2０分．13. 观察数列3、3、15、21、33，…，写出该数列的一个通项公式a n ＝______________.14．在实数范围内，不等式||x －2|－1|≤1的解集为_______.15．定义运算bc ad d c b a -=，则符合条件01121=+-+ii i z 的复数z 为 .16．如果f(a＋b)＝f(a)·f(b)，且f(1)＝2，则f(2)f(1)＋f(4)f(3)＋f(6)f(5)＋…＋f(2 006)f(2 005)＋f(2 008)f(2 007)＋f(2 010)f(2 009)＝_______.三．解答题:（本大题共6小题,满分70分, 解答应写出文字说明、证明过程或演算步骤）17．（本小题满分10分）复数z1＝3a＋5＋(10－a2)i，z2＝21－a＋(2a－5)i.若z1＋z2是实数，求实数a的值．18．（本小题满分12分）设a、b、c均为正数，且a＋b＋c＝1，证明：(1)ab＋bc＋ac≤13；(2)a2b＋b2c＋c2a≥1.19. (本小题满分12分)已知复数z1＝2－3i，z2＝15－5i (2＋i)2.求：(1)z1＋z2；(2)z1·z2；(3)z1 z2.20. (本小题满分12分) 在数列{a n}中，a1＝12，a n＋1＝3a na n＋3，求a2、a3、a4的值，由此猜想数列{a n}的通项公式，并证明你的猜想．21.(本小题满分12分)(1)解不等式|x－1|＋|x＋2|≥5的解集.(2)若关于x的不等式|ax－2|<3的解集为{x|－53<x<13}，求a的值.22．(本小题满分12分) 调查某桑场采桑员和辅助工患桑毛虫皮炎病的情况，结果如下表：利用2×2两者有关系会犯错误的概率是多少？附：K 2＝n (ad －bc )2(a ＋b )(c ＋d )(a ＋c )(b ＋d )，周口中英文学校2016-2017学年下期高二期中考试（文科数学答题卷）一、选择题（本题每小题5分，共60分）二、填空题:（每小题5分，共20分）13、 14、15、 16、三:解答题:（本题70分,解答应写出文字说明，证明过程或演算步骤）17．（本小题满分10分）18. （本小题满分12分）19. （本小题满分12分）0,4hslx3y3h.15．i 2 16. 201017．解析： z 1＋z 2＝3a ＋5－(10－a 2)i ＋21－a＋(2a －5)i ＝3a ＋5＋21－a＋(2a －5－10＋a 2)i ， 由z 1＋z 2是实数，可得2a －5－10＋a 2＝0，a ＋5≠0且1－a ≠0，从而得a ＝3.18．证明 (1)由a 2＋b 2≥2ab ，b 2＋c 2≥2bc ，c 2＋a 2≥2ac 得 a 2＋b 2＋c 2≥ab ＋bc ＋ca . 由题设得(a ＋b ＋c )2＝1， 即a 2＋b 2＋c 2＋2ab ＋2bc ＋2ca ＝1. 所以3(ab ＋bc ＋ca )≤1，即ab ＋bc ＋ca ≤13.(2)因为a 2b ＋b ≥2a ，b 2c ＋c ≥2b ，c 2a ＋a ≥2c ， 故a 2b ＋b 2c ＋c 2a ＋(a ＋b ＋c )≥2(a ＋b ＋c )， 即a 2b ＋b 2c ＋c 2a ≥a ＋b ＋c . 所以a 2b ＋b 2c ＋c 2a ≥1.19.解 z 2＝15－5i (2＋i )2＝15－5i 3＋4i ＝5(3－i )(3－4i )(3＋4i )(3－4i )＝5－15i 5＝1－3i.(1)z 1＋z 2＝(2－3i)＋(1＋3i)＝3.(2)z 1·z 2＝(2－3i)(1－3i)＝2－9－9i ＝－7－9i. (3)z 1z 2＝2－3i 1－3i ＝(2－3i )(1＋3i )(1－3i )(1＋3i ) ＝2＋9＋3i 10＝1110＋310i.20.a 1＝12＝36，a 2＝37，a 3＝38，a 4＝39，猜想a n ＝3n ＋5，下面用数学归纳法证明：①当n ＝1时，a 1＝31＋5＝12，猜想成立． ②假设当n ＝k (k ≥1，k ∈N *)时猜想成立， 即a k ＝3k ＋5.则当n ＝k ＋1时，a k ＋1＝3a k a k ＋3＝3·3k ＋53k ＋5＋3＝3(k ＋1)＋5，所以当n ＝k ＋1时猜想也成立， 由①②知，对n ∈N *，a n ＝3n ＋5都成立．21解 (1)当x <－2时，不等式等价于－(x －1)－(x ＋2)≥5，解得x ≤－3； 当－2≤x <1时，不等式等价于－(x －1)＋(x ＋2)≥5，即3≥5，无解； 当x ≥1时，不等式等价于x －1＋x ＋2≥5，解得x ≥2. 综上，不等式的解集为{x |x ≤－3或x ≥2}. (2)∵|ax －2|<3，∴－1<ax <5.当a >0时，－1a <x <5a ，与已知条件不符； 当a ＝0时，x ∈R ，与已知条件不符； 当a <0时，5a <x <－1a ，又不等式的解集为{x |－53<x <13}，故a ＝－3.22. 解： 由已知a ＝18，b ＝12，c ＝5，d ＝78，所以a ＋b ＝30，c ＋d ＝83， a ＋c ＝23，b ＋d ＝90，n ＝113.所以K 2＝n (ad －bc )2(a ＋b )(c ＋d )(a ＋c )(b ＋d )＝113×(18×78－12×5)230×83×23×90≈39.6>10.828.所以有99.9%的把握认为“患桑毛虫皮炎病与采桑”有关系． 认为两者有关系会犯错误的概率是0.1%.。
河南省周口中英文学校高二英语上学期第一次考试试题
周口中英文学校2015-2016学年上学期月考试试卷高二英语考试时间100分钟满分150分第一部分:听力（30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，从每题所给的四个选项 (A、B、C和D)中，选出最佳选项。
AHundreds of years ago, a Roman army came north from England to make war on Scotland. The Scots, a brave people, love their country. They fought hard to drive the enemy out of Scotland. But there were too many of the Romans. It looked as if the Romans would win.One night, the leader of the Scots marched his soldiers to the top of a hill. “We will rest here tonight, my men,” he said, “Tomorrow we will fight one more battle①. We must win, or we will die.”They were all very tired. So they ate their supper quickly and fell asleep. There were four guards on duty, but they were very tired, too, and one by one, they fell asleep.The Romans were not asleep. Quickly they gathered at the foot of the hill. Slowly they went up the hill. Closer they came to the sleeping Scots. They were almost at the top. A few minutes more the war would be over. Suddenly, one of them put his foot on a thistle (蓟). He cried out and his sudden cry woke the Scots. In a minute they were on their feet and ready for a battle. The fighting was hard, but it did not last long. The Scots wipe d out the Romans and saved Scotland②.The thistle is not a beautiful plant. It has sharp needles all over it. Few people liked it. But the people of Scotland liked it so much that they made it their national flower.21. Hundreds of years ago, the Romans ____ .A. came from the north through England to make war on ScotlandB. came to the north Scotland from England to make war on ScotlandC. came from the north of England to fight the ScotsD. came to the north from the south of Britain to fight the Scots22. At the shout of a Roman soldier, all the Scots who were asleep at the hill ____ .A. began to fight the Romans hardB. stood up without putting on their shoes and began to fightC. woke and rose immediately, ready to fightD. put their feet into their shoes at once and were ready to fight23. The result of the war is that ____ .A. the Romans killed all the ScotsB. the Scots were defeatedC. the Scots were driven out of ScotlandD. the Scots defeated the Romans24. The Scots made thistle their national flower because thistle ____ .A. is lovely, though not beautifulB. gave them happinessC. is a kind of useful plantD. helped the Scots in wiping out the RomaBDo you like to eat out? Do you like to eat quickly? Do you like inexpensive food? Some people go to fast-food restaurants for these reasons. In the past, people usually went to diners（小餐馆）for these reasons. In fact, many people in the States still go to diners today for the same reasons.A man named Walter Scott had the first “diner” in 1872. It wasn’t a real diner. It was only a food cart. People on the street walked up to the cart to buy food. These carts served late-night workers who wanted a cup of coffee and a late-night meal. The meal was a sandwich or boiled eggs. In 1887, Samuel Jones built the first diner big enough to allow the customers to come inside. However, they did not sit down. Later, people built diners with counters and stools, and people sat down while they ate.Before long, many diners stayed open around the clock. In other words, people were able to eat in diner at any time. Diners changed in other ways, too. The original menu of sandwiches and coffee became bigger. It included soup, favorite dishes, and a breakfast menu. In addition, diners soon became permanent buildings. They were no longer carts on wheels.Diners today look similar to the diners of the early 1900s. They are usually buildings with large windows. Inside, the diners have shining counters with stools, booths, and tables and chairs. People can eat all three meals in a modern diner. Today, many people eat in fast-food restaurants such as McDonald’s and Burger King. However, the diner remains an American tradition, and thousands of people still enjoy eating there. It was popular a century ago, and it is still popular today.25. A man named Walter Scott had the first “diner” in 1872. Why is the word “diner”in quotation marks(引号)？A．Because it is spelled differently from “ dinner”B．Because the first diner was not what it is nowC．Because diner was a new wordD．Because it is a special kind of restaurant26. According to paragraph 3, diners changed in __________A. Two waysB. three waysC. four waysD. five ways27. Which of the following is NOT true according to the passage?A.Diners existed before a fast-food restaurantB.The menu included more food than sandwiches and coffeeC.Burger King is a fast-food restaurantD.Sandwiches became bigger28. The main idea of the passage is that ______________.A. The diner is a traditional, popular place to eat in the United StatesB. Samuel Johns built the first diner big enough to allow the customers to come insideC. American diners serve many types of food 24 hours a day to their customersD. Diners are different from fast-food restaurants in many waysC．Lillian Hanson, a college student, expects to graduate in about two years. What makes Mrs. Hanson different from her classmates is her age-----73 years. She has been studying at college, a few courses at a time, for 27 years.When Lillian Hanson graduated from high school, she went to the bank to borrow money for further education. The banker gave her no encouragement. He didn’t think that a country girl should borrow money to go to college. He thought she should be at home doing work in the house or around the farm. So Lillian Hanson went home and raised a family of nine children instead of going to college. Mrs. Hanson never forgot her dream of getting a higher education. When her children were grown, she tried again.She finds that it is the hardest part of going back to school at her age to sit in class for long periods of time. Because she is not as quick as she used to be, Mrs. Hanson often gets up and walks around classes to keep from getting stiff(不灵活). At the beginning of a course in using the computer, the other students all stood up to give her a warm welcome when she introduced herself and explained why she was there and what her aims were.29. Mrs. Hanson couldn’t go to college immediately after she graduated from high school because ____________.A. she hadn’t got enough moneyB. she was a country girlC. the banker ordered her not to borrow any moneyD. the banker thought she should raise a family of nine children30. The computer students welcomed Mrs. Hanson warmly because ______.A. she had got an excellent result in the examB. she was good at telling funny storiesC. they wanted to get her help in their studiesD. they were deeply moved by her spirit31. Mrs. Hanson is the sort of person who ________.A. cares for study very muchB. likes to borrow money from the bankC. never misses a chance to talkD. tries to save any money for her family32. In which order did Mrs. Hanson do the following things?a. she began her studies at college.b. She finished high school.c. She got married and gave birth of nine children.d. She had her 73 rd birthday.e. She went to the bank to borrow money.A. a c b e dB. b e c a dC. b c e d aD. e d a c bDThis March is a busy month in Shanghai. There’s a lot to do. Here are the highlights. Live Music—Late Night JazzEnjoy real American jazz from Herbie Davis, the famous trumpet player. He’s coming with his new 7-piece band, Herbie’s Heroes. Herbie is known to play well into the early hours, so don’t expect to get much sleep.This is Herbie’s third visit to Shanghai. The first two were sold out, so get your tickets quickly.Take your partners and get ready to dance till you drop. Scottish dancing is fun and easy to learn.Instructors will demonstrate the dances. The live band, Gordon Stroppie and theExhibitions—Shanghai MuseumThere are 120,000 pieces on show here. Your can see the whole of Chinese history under one roof. It’s always interesting to visit, but doubly so at the moment with the Egyptian Tombs exhibition. There are lots of mummies and more gold than you’ve ever seen before. Let us know if you see a mummy move!Dining –Sushi chef in townSushi is getting really big in Shanghai. In Japan, it’s become an art form .The most famous Sushi ‘artist’ is Yuki Kamura .She’s also one of the few female c hefs in Japan. She’ll be at Sushi Scene all of this month.For a full listing of events, see our website.33. Suppose you are going to attend an activity at 8:00p.m. on Saturday, which one can you choose?A. Live Music—Late Night JazzB. Scottish dancingC. Exhibitions –Shanghai MuseumD. Dining—Sushi chef in town34. Which of the following is true according to the advertisements?A. Scottish dancing is so interesting and easy that it never tires you out .B. The performance given b y the American jazz band won’t last long .C. Sushi is not popular in Shanghai as it is a kind of Japanese traditional food.D. It is more interesting to visit Shanghai Museum for the exhibits from Egypt.35. From the text we may learn that Kamura is _________.A. a cookB. a waitressC. an instructorD. an artist第二节 (共5小题：每小题2分, 满分l0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, 选项中有两项为多余选项。
河南省周口中英文学校高二化学下学期期中试题
周口中英文学校2015—2016学年下期高二期中考试化学试题一、选择题（每小题只有1个选项符合题意，每小题3分，共54分，）1.下列有关有机物的说法中正确的是( )A.符合同一通式的有机物一定互为同系物B.乙烷不能使溴水和高锰酸钾酸性溶液褪色C.所有的有机物都很容易燃烧D.易溶于汽油、酒精、苯等有机溶剂中的物质一定是有机物2．通常状况下，下列物质为气体的是( )A．甲苯 B．溴乙烷 C．四氯化碳 D．2甲基丙烷3．下列各化合物的命名中正确的是( )4.下列物质属于同系物的是( )A.CH3CH2Cl与CH3CH2CH2BrB.与C.乙酸与HCOOCH3D.CH3CH2CH2OH与CH3OH5.下列反应无论怎样调整反应物的用量都只能生成一种物质的是( )A．甲烷和氯气混合后光照发生反应 B．乙烯与氯化氢的加成反应C．甲苯与等物质的量的Br2发生反应 D．乙炔和氯气的加成反应6.下列化学用语中正确的是( )A .烯的结构简式为CH2CH2 B.羟基的电子式：HC.丁烯的键线式D.乙醇的分子式:CH 3CH2OH7.有如下4种碳架的烃，则下列判断正确的是( )A．a和d是同分异构体 B．b和c不是同系物C．a和d都能发生加成反应 D．只有b和c能发生取代反应8.列化合物中核磁共振氢谱只出现三个峰且峰面积之比为3∶2∶2的是( )A. B. C. D.9.N A 为阿伏加德罗常数的值，下列有关叙述不正确的是( ) A ．标准状况下，1 L 庚烷所含有的分子数为N A /22.4 B ．1 mol 甲基(—CH 3)所含电子数为9N AC ．标准状况下，B 2H 6和C 2H 4的混合气体22.4 L ，所含的电子数约为16N AD ．26 g C 2H 2和苯蒸气的混合气体中所含的C 原子数为2N A10.丙烯②氯乙烯③苯④甲苯四种有机物中,分子内所有原子均在同一平面的是( ) A.①②B.②④C.③④D.②③11.等物质的量的Br 2发生加成反应,生成的产物是( )A. B. C. D.12.4个化学反应，与其他3个反应类型不同的是( ) A ．CH 2===CH —CH 3＋HCl ――→催化剂△CH 3CHCH 3ClB ．CH 3CHO ＋H 2――→催化剂△CH 3CH 2OHC ．CH 3CH 2Br ＋NaOH ――→醇△CH 2===CH 2↑＋NaBr ＋H 2OD ．CH≡CH＋Br 2―→13.化合物的一氯代物的数目排列顺序正确的是( ) ①CH 3CH 2CH 2CH 2CH 2CH 3 ②(CH 3)2CHCH(CH 3)2 ③(CH 3)3CCH 2CH 3 ④(CH 3)3CC(CH 3)3 A ．①＞②＞③＞④ B ．②＞③＝①＞④ C ．③＞②＞④＞①D ．③＝①＞②＞④14.苯环上的氢原子被两个溴原子取代，生成的二溴代物有6种，则甲苯苯环上的三溴代物有( )A ．3种B ．4种C ．6种D ．5种15.合物Z 由如下反应得到：C 4H 9Br ――→醇，△NaOH Y ――→Br 2CCl 4Z ，Z 的结构简式不可能是( )A.CH3CH(CH2Br)2 B．CH3CH2CHBrCH2BrC.H3CHBrCHBrCH3D．CH2BrCBr(CH3)216.化合物中，既能发生消去反应生成烯烃又能发生水解反应的是( )17.下列物质中的杂质(括号中为杂质),采用的试剂和除杂方法错误的是( )选项含杂质的物质试剂除杂方法A C2H4(SO2) NaOH溶液洗气B C6H5NO2(HNO3) NaOH溶液分液C C6H6(Br2) Fe粉蒸馏D C2H2(H2S) CuSO4溶液洗气18.斯德哥尔摩公约》禁用的12种持久性有机污染物之一是滴滴涕,其结构简式如图所示,有关滴滴涕的说法正确的是( )A.它属于芳香烃B.分子中最多有23个原子共面C.分子式为C14H8Cl5D.1 mol该物质最多能与5 mol H2加成二、非选择题（共46分）19．( 10分) (1) 用系统命名法命名:(2)2,6-二甲基-4-乙基辛烷的结构简式是,1 mol该烃完全燃烧需消耗氧气mol。
《解析》河南省周口市中英文学校2015-2016学年高二下学期第一次月考数学试卷(理科)Word版含解析
2015-2016学年河南省周口市中英文学校高二（下）第一次月考数学试卷（理科）一、选择题：本大题共12小题，每小题5分，满分60分；每小题给出的四个选项中只有一项是符合题目要求的．1．已知直线y=kx+1与曲线y=x3+ax+b切于点（1，3），则b的值为（）A．3 B．﹣3 C．5 D．﹣52．一木块沿某一斜面自由滑下，测得下滑的水平距离s与时间t之间的函数关系为，则t=2秒时，此木块在水平方向的瞬时速度为（）A．2 B．1 C．D．3．如图，函数y=f（x）的图象在点P处的切线方程为x﹣y+2=0，则f（1）+f′（1）=（）A．1 B．2 C．3 D．44．已知曲线f（x）=xlnx的一条切线的斜率为2，则切点的横坐标为（）A．1 B．ln2 C．2 D．e5．函数的导数为（）A．B．C．D．6．如果曲线y=x4﹣x在点P处的切线垂直于直线y=﹣x，那么点P的坐标为（）A．（1，0）B．（0，﹣1）C．（0，1）D．（﹣1，0）7．若f（x）=，则f（x）dx=（）A．0 B．1 C．2 D．38．已知函数y=2x3+ax2+36x﹣24在x=2处有极值，则该函数的一个递增区间是（）A．（2，3）B．（3，+∞）C．（2，+∞）D．（﹣∞，3）9．对于函数f（x）=x3﹣3x2，给出命题：①f（x）是增函数，无极值；②f（x）是减函数，无极值；③f（x）的递增区间为（﹣∞，0），（2，+∞），递减区间为（0，2）；④f （0）=0是极大值，f （2）=﹣4是极小值．其中正确的命题有（ ）A ．1个B ．2个C ．3个D ．4个10．定积分∫01dx 的值为（ ）A ．1B ．ln2C ．﹣D ． ln2﹣ 11．下列等式成立的是（ ）A ．0dx=b ﹣a B ． xdx=C ． |x |dx=2|x |dxD ．（x +1）dx=xdx 12．设函数f （x ）=ax 2+bx +c （a ，b ，c ∈R ），若x=﹣1为函数y=f （x ）e x 的一个极值点，则下列图象不可能为y=f （x ）的图象是（ ）A ．B ．C ．D ．二．填空题：本大题共4小题，每小题5分，满分20分．13．曲线y=x 2﹣3x 在点P 处的切线平行于x 轴，则点P 的坐标为 （，﹣） ．14． x 5dx= 0 ．15．设f （x ）=ax 2﹣bsinx 且f ′（0）=1，f ′（）=，则a= ，b= ﹣1 ． 16．已知函数f （x ）=x 3﹣3x 的图象与直线y=a 有相异三个公共点，则a 的取值范围是 ﹣2＜a ＜2 ．三．解答题：（本大题共6小题，满分70分，解答应写出文字说明、证明过程或演算步骤） 17．已知抛物线y=x 2+bx +c 在点（1，2）处的切线与直线y=x ﹣2平行，求b ，c 的值．18．（1）已知函数f （x ）=13﹣8x +x 2，且f ′（x 0）=4，求x 0的值．（2）已知函数f （x ）=x 2+2xf ′（0），求f ′（0）的值．19．函数f （x ）=ax 3+bx 2+cx 在点x 0处取得极小值5，其导函数的图象经过（1，0），（2，0），如图所示，求：（1）x 0的值；（2）a ，b ，c 的值；（3）f （x ）的极大值．20．已知函数f （x ）=xlnx ．（1）求f（x）的最小值；（2）讨论关于x的方程f（x）﹣m=0（m∈R）的解的个数．21．已知f（x）=ax﹣lnx，x∈（0，e]，其中e是自然常数，a∈R．（1）当a=1时，求f（x）的单调区间和极值；（2）若f（x）≥3恒成立，求a的取值范围．22．已知函数f（x）=ax2﹣（2a+1）x+2lnx（a∈R）．（1）当a＞0时，讨论f（x）的单调区间；（2）设g（x）=x2﹣2x，若对任意x1∈（0，2]，均存在x2∈（0，2]，使得f（x1）＜g（x2），求a的取值范围．2015-2016学年河南省周口市中英文学校高二（下）第一次月考数学试卷（理科）参考答案与试题解析一、选择题：本大题共12小题，每小题5分，满分60分；每小题给出的四个选项中只有一项是符合题目要求的．1．已知直线y=kx+1与曲线y=x3+ax+b切于点（1，3），则b的值为（）A．3 B．﹣3 C．5 D．﹣5【考点】利用导数研究曲线上某点切线方程．【分析】因为（1，3）是直线与曲线的交点，所以把（1，3）代入直线方程即可求出斜率k的值，然后利用求导法则求出曲线方程的导函数，把切点的横坐标x=1代入导函数中得到切线的斜率，让斜率等于k列出关于a的方程，求出方程的解得到a的值，然后把切点坐标和a 的值代入曲线方程，即可求出b的值．【解答】解：把（1，3）代入直线y=kx+1中，得到k=2，求导得：y′=3x2+a，所以y′x=1=3+a=2，解得a=﹣1，把（1，3）及a=﹣1代入曲线方程得：1﹣1+b=3，则b的值为3．故选A2．一木块沿某一斜面自由滑下，测得下滑的水平距离s与时间t之间的函数关系为，则t=2秒时，此木块在水平方向的瞬时速度为（）A．2 B．1 C．D．【考点】变化的快慢与变化率．【分析】根据题意，对进行求导，然后令t=2代入即可得到答案．【解答】解：∵，∴s'=t，当t=2时，v=s'=．∴此木块在水平方向的瞬时速度为．故选C．3．如图，函数y=f（x）的图象在点P处的切线方程为x﹣y+2=0，则f（1）+f′（1）=（）A．1 B．2 C．3 D．4【考点】导数的运算．【分析】观察图象可得点P（1，f（1））在切线x﹣y+2=0上，故可求出f（1）；由导数的几何意义可得图象在点P处的切线的斜率k=f′（1），由此求出f′（1），故问题得解．【解答】解：∵点P（1，f（1））在切线x﹣y+2=0上，∴1﹣f（1）+2=0，解得f（1）=3；又∵f′（1）=k=1，∴f（1）+f′（1）=4，故选D．4．已知曲线f（x）=xlnx的一条切线的斜率为2，则切点的横坐标为（）A．1 B．ln2 C．2 D．e【考点】导数的运算；直线的斜率．【分析】求出函数的导函数，根据曲线f（x）=xlnx在某点处的切线斜率为2，令导函数等于2得到关于x的方程，求出方程的解即为切点的横坐标．【解答】解：∵f′（x）=y′=lnx+1由曲线在某点的切线斜率为2，令y′=y′=lnx+1=2解得x=e．故选D．5．函数的导数为（）A．B．C．D．【考点】简单复合函数的导数．【分析】由题意利用复合函数的求导法则可得y′=（3sint）′•（2x﹣）′=3cos（2x﹣）•2，运算求得结果．【解答】解：令y=3sint，t=2x﹣，则y′=（3sint）′•（2x﹣）′=3cos（2x﹣）•2=，故选A．6．如果曲线y=x4﹣x在点P处的切线垂直于直线y=﹣x，那么点P的坐标为（）A．（1，0）B．（0，﹣1）C．（0，1）D．（﹣1，0）【考点】利用导数研究曲线上某点切线方程．【分析】先根据题意求出切线的斜率k，再求出函数y=x4﹣x的导数，设P（x0，y0），利用导数和斜率k求出x0，将求出的x0代入y=x4﹣x，求出y0．【解答】解：∵曲线y=x4﹣x在点P处的切线垂直于直线y=﹣x，直线y=﹣x的斜率为﹣，∴曲线y=x4﹣x在点P处的切线的斜率k=3，∵函数y=x4﹣x的导数为y′=4x3﹣1，设P（x0，y0），∴4﹣1=3，解得x0=1，∴y0=x04﹣x0=0，∴P（1，0）．故选：A．7．若f（x）=，则f（x）dx=（）A．0 B．1 C．2 D．3【考点】定积分．【分析】根据分段函数的积分法则，可得所求积分为：y=x3+sinx在[﹣1，1]上的积分值，再加上函数y=2在[1，2]上的积分值积所得的和．再由定积分计算公式求出被积函数的原函数，由微积分基本定理加以计算，可得答案．【解答】解：∵f（x）=，∴f（x）dx=（x3+sinx）dx+2dx=（x4﹣cosx）+2x=（•14﹣cos1）﹣[•（﹣1）4﹣cos（﹣1）]+（2×2﹣2×1）=2．故选：C8．已知函数y=2x3+ax2+36x﹣24在x=2处有极值，则该函数的一个递增区间是（）A．（2，3）B．（3，+∞）C．（2，+∞）D．（﹣∞，3）【考点】利用导数研究函数的极值；利用导数研究函数的单调性．【分析】先求出函数的导数，再根据极值求出参数a的值，然后在函数的定义域内解不等式fˊ（x）＞0的区间即可．【解答】解：y′=f′（x）=6x2+2ax+36∵在x=2处有极值∴f′（2）=60+4a=0，解得a=﹣15令f′（x）=6x2﹣30x+36＞0解得x＜2或x＞3故选B9．对于函数f（x）=x3﹣3x2，给出命题：①f（x）是增函数，无极值；②f（x）是减函数，无极值；③f（x）的递增区间为（﹣∞，0），（2，+∞），递减区间为（0，2）；④f（0）=0是极大值，f（2）=﹣4是极小值．其中正确的命题有（）A．1个B．2个C．3个D．4个【考点】利用导数研究函数的极值．【分析】令f′（x）=0，求得x=0 或x=2，再利用导数的符号求得函数的单调区间，从而得到函数的极值，从而得出结论．【解答】解：对于函数f（x）=x3﹣3x2，求得f′（x）=3x2﹣6x=3x（x﹣2），令f′（x）=0，求得x=0 或x=2，在（﹣∞，0）上，f′（x）＞0，函数f（x）为增函数；在（0，2）上，f′（x）＜0，函数f（x）为减函数；在（2，+∞）上，f′（x）＞0，函数f（x）为增函数，故排除①、②，故③、④正确，故选：B．10．定积分∫01dx的值为（）A．1 B．ln2 C．﹣D．ln2﹣【考点】定积分．【分析】先判断哪个函数的导数等于，就可借助微积分定理，把∫01dx转化为ln（1+x）|01，求出结果．【解答】解：∵（ln（1+x））′=，∴∫01dx=ln（1+x）|01=ln2﹣ln1=ln2故选B11．下列等式成立的是（）A．0dx=b﹣a B．xdx=C． |x|dx=2|x|dx D．（x+1）dx=xdx【考点】定积分．【分析】根据定积分的计算法则计算即可．【解答】解：0dx=0，xdx=x2|=（b2﹣a2），|x|dx=（﹣x）dx+xdx=﹣x2|+x2|=+=1，2|x|dx=2（x2|）=1，故|x|dx=2|x|dx；（x+1）dx=（x2+x）|=（b2+b﹣a﹣a2）≠xdx，故选：C．12．设函数f（x）=ax2+bx+c（a，b，c∈R），若x=﹣1为函数y=f（x）e x的一个极值点，则下列图象不可能为y=f（x）的图象是（）A．B．C．D．【考点】利用导数研究函数的单调性；函数的图象与图象变化．【分析】先求出函数f（x）e x的导函数，利用x=﹣1为函数f（x）e x的一个极值点可得a，b，c之间的关系，再代入函数f（x）=ax2+bx+c，对答案分别代入验证，看哪个答案不成立即可．【解答】解：由y=f（x）e x=e x（ax2+bx+c）⇒y′=f′（x）e x+e x f（x）=e x[ax2+（b+2a）x+b+c]，由x=﹣1为函数f（x）e x的一个极值点可得，﹣1是方程ax2+（b+2a）x+b+c=0的一个根，所以有a﹣（b+2a）+b+c=0⇒c=a．法一：所以函数f（x）=ax2+bx+a，对称轴为x=﹣，且f（﹣1）=2a﹣b，f（0）=a．对于A，由图得a＞0，f（0）＞0，f（﹣1）=0，不矛盾，对于B，由图得a＜0，f（0）＜0，f（﹣1）=0，不矛盾，对于C，由图得a＜0，f（0）＜0，x=﹣＞0⇒b＞0⇒f（﹣1）＜0，不矛盾，对于D，由图得a＞0，f（0）＞0，x=﹣＜﹣1⇒b＞2a⇒f（﹣1）＜0与原图中f（﹣1）＞0矛盾，D不对．法二：所以函数f（x）=ax2+bx+a，由此得函数相应方程的两根之积为1，对照四个选项发现，D不成立．故选：D．二．填空题：本大题共4小题，每小题5分，满分20分．13．曲线y=x2﹣3x在点P处的切线平行于x轴，则点P的坐标为（，﹣）．【考点】利用导数研究曲线上某点切线方程．【分析】先对函数求导，然后令导函数等于0即可求出横坐标，然后代入曲线方程即可得到答案．【解答】解：y=x2﹣3x的导数y′=2x﹣3，令y′=0．即2x﹣3=0，得x=．代入曲线方程y=x2﹣3x，得y=﹣．即点P（，﹣）．故答案为：（，﹣）．14．x5dx=0．【考点】定积分．【分析】根据定积分的计算法则计算即可．【解答】解：x5dx=|=0，故答案为：015．设f（x）=ax2﹣bsinx且f′（0）=1，f′（）=，则a=，b=﹣1．【考点】导数的运算．【分析】求函数的导数，建立方程组，即可得到结论．【解答】解：函数的导数为f′（x）=2ax﹣bcosx，∵f′（0）=1，f′（）=，∴，则，则，故答案为：，﹣116．已知函数f（x）=x3﹣3x的图象与直线y=a有相异三个公共点，则a的取值范围是﹣2＜a＜2．【考点】函数的零点与方程根的关系．【分析】先对函数f（x）求导，得出极值点及极值、单调区间，并求出其零点，根据以上结论画出图象，进而得到答案．【解答】解：∵函数f（x）=x3﹣3x，∴f′（x）=3x2﹣3=3（x+1）（x﹣1）．∴当x∈（﹣∞，﹣1）或（1，+∞）时，f′（x）＞0，∴函数f（x）在区间（﹣∞，﹣1）或（1，+∞）上单调递增；当x∈（﹣1，1）时，f′（x）＜0，∴函数f（x）在区间（﹣1，1）上单调递减．又f（x）=0，解得x=0，±．根据以上画出图象．若函数f（x）=x3﹣3x的图象与直线y=a有相异三个公共点，则a必须满足f（x）min＜y＜f （x）max，∴﹣2＜a＜2．所以a的取值范围是﹣2＜a＜2．故答案为﹣2＜a＜2．三．解答题：（本大题共6小题，满分70分，解答应写出文字说明、证明过程或演算步骤）17．已知抛物线y=x2+bx+c在点（1，2）处的切线与直线y=x﹣2平行，求b，c的值．【考点】二次函数的性质．【分析】由求导公式和法则求出导数函数，再由切线的斜率和切点在抛物线上，列出方程求解．【解答】解：由题意得，y′=2x+b，∵在其上一点（1，2）处的切线与直线y=x﹣2平行，∴1=2+b，且2=1+b+c，解得b=﹣1，c=2．18．（1）已知函数f（x）=13﹣8x+x2，且f′（x0）=4，求x0的值．（2）已知函数f（x）=x2+2xf′（0），求f′（0）的值．【考点】导数的运算．【分析】（1）求导，代值计算即可，（2）求导，再令x=0，即可求出答案．【解答】解：（1）f′（x）=﹣8+2x，且f′（x0）=4，∴﹣8+2x0=4，解x0=3．（2）f′（x）=2x+2f′（0），令x=0得，f′（0）=2×0+2f′（0），∴f′（0）=0．19．函数f（x）=ax3+bx2+cx在点x0处取得极小值5，其导函数的图象经过（1，0），（2，0），如图所示，求：（1）x0的值；（2）a，b，c的值；（3）f（x）的极大值．【考点】利用导数研究函数的极值．【分析】（1）观察图象满足f′（x）=0的点附近的导数的符号的变化情况，来确定极小值，求出x0的值；（2）根据图象可得f'（1）=0，f'（2）=0，f（2）=5，建立三个方程，联立方程组求解即可；（3）由（1）知函数在x=1处取得极大值．【解答】解：（1）由图象可知，在（﹣∞，1）上f'（x）＞0，在（1，2）上f'（x）＜0．在（2，+∞）上f'（x）＞0．故f（x）在（﹣∞，1），（2，+∞）上递增，在（1，2）上递减．因此f（x）在x=2处取得极小值，所以x0=2．（2）f'（x）=3ax2+2bx+c，由f'（1）=0，f'（2）=0，f（2）=5，得，解得a=，b=﹣，c=15；（3）由（1）知函数在x=1处取得极大值f（1）=．20．已知函数f（x）=xlnx．（1）求f（x）的最小值；（2）讨论关于x的方程f（x）﹣m=0（m∈R）的解的个数．【考点】利用导数求闭区间上函数的最值；根的存在性及根的个数判断．【分析】（1）由f（x）=xlnx，知f'（x）=lnx+1，令lnx+1=0，得x=，由此能求出f（x）的最小值．（2）由f（x）先减后增，最小值为f（）=﹣，f（x）=xlnx定义域是{x|x＞0}，f（1）=0，作出函数f（x）=xlnx草图，由此能当判断关于x的方程f（x）﹣m=0（m∈R）的解的个数．【解答】解：（1）∵f（x）=xlnx，∴f'（x）=lnx+1，令lnx+1=0，得x=，当x＞时，f'（x）＞0，当0＜x＜时，f'（x）＜0所以f（x）先减后增，最小值为f（）=﹣．（2）由（1）知，f（x）先减后增，最小值为f（）=﹣，f（x）=xlnx定义域是{x|x＞0}，f（1）=0，画出函数f（x）=xlnx草图，结合图象和最小值为f（）=﹣，知：当m＜﹣时，关于x的方程f（x）﹣m=0（m∈R）无解；当﹣＜m＜0时，关于x的方程f（x）﹣m=0（m∈R）有两个解；当m=﹣或m≥0时，关于x的方程f（x）﹣m=0（m∈R）有唯一解．21．已知f（x）=ax﹣lnx，x∈（0，e]，其中e是自然常数，a∈R．（1）当a=1时，求f（x）的单调区间和极值；（2）若f（x）≥3恒成立，求a的取值范围．【考点】函数在某点取得极值的条件；函数恒成立问题；利用导数研究函数的单调性．【分析】（1）当a=1时，f（x）=x﹣lnx，求出f′（x），在定义域内解不等式f′（x）＜0，f′（x）＞0即可得到单调区间，由单调性即可得到极值；（2）f（x）≥3恒成立即a≥+恒成立，问题转化为求函数，x∈（0，e]的最大值，利用导数即可求得；【解答】解：（1）当a=1时，f（x）=x﹣lnx，f′（x）=1﹣=，当0＜x＜1时，f′（x）＜0，此时f（x）单调递减；当1＜x＜e时，f′（x）＞0，此时f（x）为单调递增．∴当x=1时f（x）取得极小值，f（x）的极小值为f（1）=1，f（x）无极大值；（2）∵f（x）=ax﹣lnx，x∈（0，e]，∴ax﹣lnx≥3在x∈（0，e]上恒成立，即a≥+在x∈（0，e]上恒成立，令，x∈（0，e]，则，令g′（x）=0，则，当时，f′（x）＞0，此时f（x）单调递增，当时，f′（x）＜0，此时f（x）单调递减，∴，∴a≥e2，即a的取值范围为a≥e2．22．已知函数f（x）=ax2﹣（2a+1）x+2lnx（a∈R）．（1）当a＞0时，讨论f（x）的单调区间；（2）设g（x）=x2﹣2x，若对任意x1∈（0，2]，均存在x2∈（0，2]，使得f（x1）＜g（x2），求a的取值范围．【考点】利用导数研究函数的单调性；利用导数求闭区间上函数的最值．【分析】（1）求导f′（x）=，（x＞0）；从而讨论导数的正负以确定函数的单调性；（2）由已知，在（0，2]上有f max（x）＜g max（x），从而求导确定函数的最值，从而由最值确定a的取值范围．【解答】解：（1）f′（x）=，（x＞0）；①当0时，＞2，增区间是（0，2）和（，+∞），减区间是（2，）．②当a=时，f′（x）=，故f（x）的单调递增区间是（0，+∞）．③当a＞时，0＜＜2，增区间是（0，）和（2，+∞），减区间是（，2）．（2）由已知，在（0，2]上有f max（x）＜g max（x）．由已知，g max（x）=0，当a≤0时，x＞0，ax﹣1＜0，在区间（0，2]上，f′（x）＞0；f（x）在（0，2]上单调递增，结合（1）可知：①当a≤时，f（x）在（0，2]上单调递增，故f max（x）=f（2）=2a﹣2（2a+1）+2ln2=﹣2a﹣2+2ln2，所以，﹣2a﹣2+2ln2＜0，解得a＞ln2﹣1，故ln2﹣1＜a≤．②当a＞时，f（x）在（0，]上单调递增，在[，2]上单调递减，故f max（x）=f（）=﹣2﹣﹣2lna．由a＞可知lna＞ln＞ln=﹣1，2lna＞﹣2，﹣2lna＜2，所以，﹣2﹣2lna＜0，f max（x）＜0，综上所述，a＞ln2﹣1．2016年10月10日。
河南省周口中英文学校2015-2016学年高二下学期第一次月考生物试题 含答案
周口中英文学校2015-2016学年下期高二第一次考试生物试题一．选择题:（每题2分，共60分）1。
基因工程是一种新兴生物技术，实施该工程的最终目的是（）A．定向提取生物体DNA分子B．定向对DNA分子进行人工“剪切”C．在生物体外对DNA分子进行改造D．定向改造生物遗传性状2.如表列举了部分限制酶及其识别的核苷酸序列和切点,下列叙述错误的是( )A。
Apa Ⅰ与PspOM Ⅰ识别的核苷酸序列相同,但两者切割DNA 形成的黏性末端不同B．不同限制酶可识别相同的核苷酸序列，同一种限制酶也可识别不同的核苷酸序列C．BciT130 Ⅰ将其识别的核苷酸序列切开后，形成的黏性末端都能连接在一起D．Eco72 Ⅰ切割的化学键和RNA聚合酶、DNA聚合酶催化合成的化学键相同3。
下列关于DNA连接酶的叙述正确的是（)①催化相同黏性末端的DNA片段之间的连接②催化不同黏性末端的DNA片段之间的连接③催化两个黏性末端互补碱基间氢键的形成④催化DNA分子两条链的脱氧核糖与磷酸之间磷酸二酯键的形成A．①③B．②④C．②③D．①④4.关于磷酸二酯键的说法正确的是（）A．只有目的基因中存在B．只有质粒分子中存在C．DNA单链或双链分子都存在D．只存在于双链DNA分子中5。
两个具有相同黏性末端的DNA片段，在条件适宜时,经酶的作用合成一个重组DNA分子.该酶是（)A．DNA连接酶B．RNA聚合酶C．DNA聚合酶D．限制性内切酶6。
质粒是基因工程最常用的载体，下列关于质粒的说法正确的是（)A．质粒在宿主细胞内都要整合到染色体DNA上B．质粒是独立于细菌拟核DNA之外的小型细胞器C．基因工程操作中的质粒一般都是经过人工改造的D．质粒上碱基之间数量存在A＋G＝U＋C7。
已知某种限制性内切酶在一线性DNA分子上有3个酶切位点,如图中箭头所指。
如果该线性DNA分子在3个酶切位点上都被该酶切断，则会产生a、b、c、d四种不同长度的DNA片段.现有多个上述线性DNA分子,若在每个DNA分子上至少有1个酶切位点被该酶切断，则从理论上讲，经该酶酶切后，这些线性DNA分子最多能产生长度不同的DNA片段种类数是( ）A．3 B．4C．9 D．128。
河南省周口中英文学校高二生物下学期期中试题
周口中英文学校2015-2016学年下期高二期中考试生物试题一、单项选择题:本部分包括30 题,每题2 分,共计60 分。
1．下列有关基因工程中限制性内切酶的描述，错误的是（）A．一种限制性内切酶只能识别一种特定的脱氧核苷酸序列B．限制性内切酶的活性受温度的影响C．限制性内切酶能识别和切割RNAD．限制性内切酶可从原核生物中提取2.在基因工程中，切割载体和含有目的基因的DNA片段中，一般需使用（）A．同种限制酶 B．两种限制酶 C．同种连接酶 D．两种连接酶3．在基因工程操作过程中，E•coli DNA连接酶的作用是（）A．将任意两个DNA分子连接起来B．连接具有相同黏性末端的DNA分子，包括DNA分子的基本骨架和碱基对之间的氢键C．只连接具有相同黏性末端的DNA分子的基本骨架，即磷酸二酯键D．只连接具有相同黏性末端的DNA分子碱基对之间的氢键4.下列关于质粒的叙述，正确的是（）A．质粒是广泛存在于细菌细胞中的一种颗粒状细胞器B．质粒是细菌细胞质中能自主复制的小型环状双链DNA分子C ．所有的质粒都可以作为基因工程的载体D ．细菌质粒的复制过程一定是在宿主细胞外独立进行5．我国上海研究所合成一种具有镇痛作用而又不会使病人上瘾的药物——脑啡呔多糖（类似人类中的糖蛋白）。
如要采用基因工程和发酵技术让微生物来生产脑啡呔多糖，应选哪种微生物为受体细胞（ ）A ． 大肠杆菌B ． 大肠杆菌质粒C ． T4噬菌体D ． 酵母菌6．作为基因的运输工具——运载体，必须具备的条件之一及理由是（ ）A ．能够在宿主细胞中稳定地保存下来并大量复制，以便提供大量的目的基因B ．具有多个限制酶切点，以便于目的基因的表达C ．具有某些标记基因，以使目的基因能够与其结合D ．对宿主细胞无伤害，以便于重组DNA 的鉴定和选择7．质粒是基因工程中最常用的运载体，它存在于许多细菌体内。
质粒上有标记基因如图所示，通过标记基因可以推知外源基因（目的基因）是否转移成功。
河南省周口中英文学校2020-2021学年高二下学期期中考试英语试题
河南省周口中英文学校2020-2021学年高二下学期期中考试英语试题学校:___________姓名：___________班级：___________考号：___________一、阅读选择SPECIAL EVENTS THIS WEEKENDCaptain Good FellowDo your children enjoy interesting stories, funny games, and exciting dances? Captain Good Fellow will be ready to teach all these things to children of all ages at the City Theatre on Saturday morning at 10:00. Free.Walking Tour of the TownForget your worries on Saturday morning. Take a beautiful walk and learn about local history. Meet at the front entrance of City Hall at 9:30. Wear comfortable shoes!Films at the MuseumTwo European films will be shown on Saturday afternoon at the Museum Theatre. See Broken Window at 1:30. The workers will be at 3:45. For further information, call 4987898. International PicnicAre you tired of eating the same food every day? Come to Central Park on Saturday and enjoy food from all over the world. Delicious and not expensive. Noon to 5:00 pm.Take Me out to the BallgameIt’s October, and tonight is your last chance to see t he Redbirds this year. Get your tickets at the gate. It might be cold; don’t forget sweaters and jackets.Do You Want to Hear “The Zoo”“The Zoo”, a popular rock group from Australia, will give their first US concert tomorrow night at 8:00 at Rose Hall, City College.1．If you are going on the Walking Tour, don’t forget_____________.A．your worries B．your beautiful walkC．your comfortable shoes D．your learning about local history 2．You can probably eat Chinese, Italian, and Arab food_____________.A．at the front entrance of City Hall B．at Central Park on SaturdayC．at 5:00 D．at the Ballgame3．The Redbirds ballgame____________.A．is at the gate B．is in the afternoonC．might be cold D．is outsideFrank Woolworth was born in Rodman, New York, in 1852. His family were very poor farmers, and there was never enough to eat. Frank decided he did not want to be a farmer. He took a short business course, and went to work as a salesman in a large city.Woolworth realized he had a natural skill for showing goods to attract people’s interest, but he soon learned something more important. One day his boss told him to sell some odds and ends (小商品) for as much as he could get. Frank put all these things on one table with a sign which said FIVE CENTS EACH. People fought and pushed to buy the things and the table was soon cleared.Soon afterwards, Woolworth opened his own store, selling goods at five and ten cents. But he had another lesson to learn before he became successful. That is, if you want to make money by selling low-price goods, you have to buy them in large quantities directly from the factories. Once, for example, Woolworth went to Germany and placed an order for knives. The order was so large that the factory had to keep running 24 hours a day for a whole year. In this way, the price of the knives was cut down by half.By 1919, Woolworth had over 1000 stores in the US and Canada, and opened his first store in London. He made many millions and his name became famous throughout the world. He always run his busines s according to strict rules, of which the most important was: “ THE CUSTOMER IS ALWAYS RIGHT.”4．Frank took a short business course in order to _________.A．get enough to eat. B．learn something from a salesman C．earn more money for his family D．get away from the farm5．Frank sold the odds and ends quickly because _________.A．he knew how to get people to buy his goods.B．he cut down the price by halfC．the sign he put on the table was well designed.D．he had put the goods on a table in a very nice way.6．The price of the knives was cut down by half because ________.A．the factory workers worked 24 hours a day.B．the knives were made in Germany, where labour (劳动力) was cheap.C．knives were ordered in large quantities directly from the factory.D．the knives were produced in one factory.7．________ make Woolworth a world-famous man.A．His natural skill for showing thingsB．The low price of the goods he soldC．His trip to Germany and his huge order of knivesD．His business skills and his wealthI was never very neat, while my roommate Kate was extremely organized. Each of her objects had its place, but mine always hid somewhere. She even labeled (贴标签) everything. I always looked for everything. Over time, Kate got neater and I got messier. She would push my dirty clothing over, and I would lay my books on her tidy desk. We both got tired of each other.War broke out one evening. Kate came into the room. Soon, I heard her screaming, “Take your shoes away! Why under my bed!” Deafened, I saw my shoes flying at me. I jumped to my feet and started yelling. She yelled back louder.The room was filled with anger. We could not have stayed together for a single minute but for a phone call. Kate answered it. From her end of the conversation, I could tell right away her grandma was seriously ill. When she hung up, she quickly crawled under her covers, sobbing. Obviously, that was something she should not go through phone. All of a sudden, a warm feeling of sympathy rose up in my heart.Slowly, I collected the pencils, took back the books, made my bed, cleaned the socks and swept the floor, even on her side. I got so into my work that I even didn't notice Kate had sat up. She was watching, her tears dried and her expression one of disbelief. Then, she reached out her hands to grasp mine. I looked up into her eyes. She smiled at me, “Thanks.”Kate and I stayed roommates for the rest of the year. We didn't always agree, but we learned the key to living together: giving in, cleaning up and holding on.8．What made Kate angry one evening?A．She couldn’t find her books.B．She heard the author shouting loud.C．She got the news that her grandma was ill.D．She saw the author's shoes beneath her bed.9．The author tidied up the room most probably because _______.A．she hated herself for being so messyB．she was asked by Kate to do soC．she was scared by Kate’s angerD．she wanted to show her care10．How is Paragraph 1 mainly developed?A．By analyzing causes.B．By describing a process.C．By showing differences.D．By following time order.11．What might be the best title for the story?A．My Friend KateB．Hard Work Pays OffC．How to Be OrganizedD．Learning to Be RoommatesA new study of 8,000 young people in the journal of Health and Social Behavior shows that although love can make adults live healthily and happily，it is a bad thing for young people. Puppy love（早恋）may bring stress for young people and can lead to depression. The study shows that girls become more depressed than boys, and younger girls are the worst of all.The possible reason for the connection between love and higher risk of depression for girls is “loss of self”. According to the study, even though boys would say “lose themselves in a romantic relationship”, this “loss of self” is much more likely to lead to depression when it happens to girls. Young girls who have romantic relationships usually like hiding their feelings and opinions. They won’t tell that to their parents.Dr Marianm Kaufman, an expert on young people problems, says 15% to 20% young people will have depression during their growing. Trying romance often causes the depression. She advises kids not to jump into romance too early. During growing up, it is important for young people to build strong friendships and a strong sense of self. She also suggests the parents should encourage their kids to keep close to their friends, attend more interesting school activities and spend enough time with family.Parents should watch for signs of depression—eating or mood changes—and if they seesigns from their daughters or sons，they need to give help. The good news is that the connection between romance and depression seems to become weak with age. Love will always make us feel young, but only maturity(成熟) gives us a chance to avoid its bad side effects.12．What’s the ma in idea of the passage?A．Romance is a two-edged sword for adults.B．Parents should forbid their children’s love.C．Puppy love may bring young people depression.D．Romance is good for young people.13．Which of the following is more likely to have depression?A．Young people who have a strong sense of self.B．Young boys whose parents watch for their behavior.C．Careless parents whose children are deep in love.D．Young girls who always hide their feelings and opinions.14．What can be inferred from the passage?A．Lacking love can lead young people to grow up more quickly.B．The older a woman is, the less likely she seems to lose herself in romance.C．Parents should help their children to be aware of the signs of depression.D．Early love makes young people keep close to their friends and parents.15．What’s the author’s attitude towards puppy love?A．Confused B．DisinterestedC．Disapproving D．Scared二、七选五Does this situation seem familiar to you？Your English is progressing well, the grammar is now familiar, the reading comprehension is no problem, and you are speaking quite fluently.16．First of all, remember that you are not alone. Listening is probably the most difficult job for almost all learners of English as a foreign language. The most important thing is to listen as often as possible.17．The Internet is really a useful tool for English students. You can download The RealPlayer from .The RealPlayer allows you to use the Internet like a radio station.Once you have begun to listen on a regular basis, you might still be frustrated(受阻) by limited understanding.18．Here is some of the advice I give my students：▲ Accept the fact that you are not going to understand everything.▲Stay relaxed when you do not understand, and try listening to the material for more times. ▲Do not translate everything into your native language.▲19．Don ‘t concentrate on details before you have understood the main ideas.▲Listen to something you enjoy.I remember the problems I had in understanding spoken German when I first went to Germany. In the beginning, when I didn’t understand a word, I insisted on translating it in my mind. This method usually resulted in confusion.20．Firstly, translating creates a barrier between the listener and the speaker. Secondly, most people repeat themselves constantly. By remaining calm, I noticed that even if I didn’t pay much attention I could usually understand what the speaker had said.A．Then, after the first six months, I discovered two extremely important facts.B．But listening is a problem for most of the beginners.C．But you can’t follow a native English speaker at all!D．However, after several weeks, I got used to the new environment in Germany.E.So, what you need to do is to find listening resources.F.What should you do?G.Listen for the general idea of the conversation.三、完形填空Joe Biggs was a butcher. His shop was in a village in the beautiful south of England, and he 21 in it for many years while his father was there. Then when his father reached the age of 65, he stopped working in the shop, and Joe was alone in it, so he had to work 22 .Joe worked five and a half days a week. His shop 23 at one o’clock on Thursday, and it was closed the whole of Sunday. Saturdays were the 24 days.Most of Joe’s 25 came to his shop from the nearest town, but sometimes he got up earlier than usual in the morning and 26 into the city to choose meat. It was 27 there.Joe had a big 28 in his shop, but he tried not to buy too 29 meat at a time, and to 30 it before he bought more.One 31 a woman came into the shop at five minutes to one. “Sorry I’m late,” she said, “but some friends have just telephoned to say that they are coming to 32 tonight, and I need more 33 .”Joe only had one piece of meat in the shop. He had sold all the others 34 in the day. He took the piece 35 and said to the woman, “This is 6.5 pounds.”“That piece is too 36 .” the woman said. “Haven’t you got anything bigger?”Joe went 37 the room behind his shop, opened the refrigerator, put the piece of meat into it, took it out 38 and shut the door of the refrigerator 39 , then he brought the piece of meat back to the woman and said, “This piece is bigger and more expensive. It’s 8.75 pounds.”“Good,” the woman answered with a smile, “give me 40 of them, please.”21．A．lived B．worked C．played D．studied22．A．harder B．later C．more D．again23．A．served B．started C．shut D．opened24．A．hardest B．busiest C．quietest D．easiest25．A．meat B．friends C．buyers D．customers26．A．walked B．ran C．flew D．drove27．A．nearer B．fresher C．cheaper D．easier28．A．cupboard B．room C．kitchen D．refrigerator29．A．fresh B．much C．expensive D．adequate30．A．freeze B．cook C．eat D．sell31．A．Monday B．Thursday C．Sunday D．Saturday32．A．dinner B．lunch C．party D．dance33．A．food B．meat C．fruit D．vegetable34．A．earlier B．cheaper C．quicker D．later35．A．away B．up C．out D．in36．A．cheap B．large C．bad D．small37．A．outside B．from C．into D．through38．A．again B．back C．even D．still39．A．quickly B．heavily C．lightly D．carefully40．A．each B．none C．all D．both四、选用适当的单词或短语补全短文Many years ago, when I worked as a volunteer at Stanford Hospital, I got to know a little girl 41．(name) Liz who was suffering from a rare and serious disease. Her only chance of42．(recover) appeared to be a blood transfusion（输血）from her 5-year-old brother, 43．had miraculously survived the same disease and had developed the antibodies needed to fight the 44．(ill).The doctor45．(explain) the situation to her little brother, and asked the boy if he would be willing to give his blood to his sister. I saw him hesitate for a moment before taking a deep breath and saying, “Yes, I’ll do it 46．it can save Liz.”As the transfusion progressed, he lay in bed next to his sister47．smiled, as we all did, 48．(see) the color returning to her cheeks. Then49．(he) face grew pale and his smile faded. He looked up at the doctor and asked with a trembling voice, “Will I start to die right away?”Being young, the boy had50．(understand) the doctor; he thought he was going to have to give his sister all of his blood.五、短文改错51．假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。
河南省南阳市2015-2016学年高二下学期期中质量评估英语试题
南阳市2016春高二英语期中试题答案听力 1-10 BBABC BCCCA 11-20 BBABC AACBA阅读 A篇 BBCA B篇 CCB C篇 AADD D篇 CCAB七选五 DACFG完形填空 41--45 ACCBD 46--50 DBACA 51--55 BBCDA 56--60 DAABB语法填空 61, basically 62, be measured 63, how 64, so 65, differs或is different66, useful 67, more 68, who/that 69, with 70, on短文改错1. 第一行的on后加whether2. student--students3. poorly--poor4. strong前的be去掉5. the waste--a waste6. tired—tiring7. on sport--in sport8. devote后的us—ourselves9. relaxed--relax 10. was—is书面表达Dear Thomas,I’m Wang Fang, who is from Beijing No. 4 Senior High School. As the President of the Student Council of our school, I’d like to tell you something about the donation of books on behalf of my school.From the bottom of my heart, I’m glad to hear that many American students love Chinese culture. Maybe it’s not easy for everyone to learn it well. In order to help them learn Chinese effectively, we plan to donate to your school 1,000 books which are about traditional Chinese history. With these books, all of you can know more about Chinese history and culture.According to the arrangement, I’d take the books to your school when I go to the Summer Camp. By the way, if there’s other demand, I’ll try to satisfy you. Best wishes!Yours sincerely, Wang Fang。
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1 周口中英文学校2015-2016学年下期期中考试 高二英语试题 第一部分 听力(共两节。共20小题; 每小题1.5分，满分30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，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。 A The first Ml choir rehearsal(彩排)of the school year took place in the school hall. All the students joined together to sing. I watched as my elder sister and her grade came in and took their places next to us on the stage. Meanwhile, I could hear laughing. Some students were pointing at a girl standing next to my sister. I’d never seen this girl before. A girl whispered in my ear, “ Did you know she’s wearing diapers(纸尿裤）？” After school that evening, I asked my sister about the girl I’d seen. She told me her name was Theresa and that she was a very nice girl .“ Why were those kids being mean to her? I asked, “Because they’re stupid，” she said. One day, I was walking home from school when I heard voices behind me. “There’s the little idiot’s (傻子)sister. Does your sister wet her pants too?” I walked a little faster and then I felt a atone hit me in the back. When I got home, I ran down to my sister’s room. I pushed my way into her room, screaming at her. “Why do you have to be that girl’s friend? I don’t see anyone else being nice to her, ” Janelle yelled back, Because shes a wonderful person and she is dying!” I will remember those words as long as I live. Theresa wet her pants because she had an illness, which was killing her. My sister was the only one nice enough to be her friend and stick up for her. A few months later, Theresa passed away. I felt proud that Janelle was my sister. Throughout the years I watched her, and she always made friends with everyone. It didn’t matter if they ware fat, thin, brilliant or not. She never left anyone feeling isolated or alone. 2
It was she who changed me and taught me to never look at anyone in the same way again. 21. Why did other students make fun of Theresa? A. Because she was dying very soon. B. Because she was not good at singing, C.Because she was usually dressed poorly. D. Because she behaved in an unusual way. 22. What was the turning point of the story? A. Janelle became a friend of Theresa. B. Theresa suffered from a serious illness. C. Hie author was told the truth about Theresa. D.The author lost her temper to her classmates. 23.What might be the best title for the passage? A.A Great Hero to Me B.A Girl in Need of Help C.An Unforgettable Rehearsal D.An Embarrassing Experience B The more you give to others，the more you reap yourself.When you share what you know，you will find that you grow according to the number of seeds that you sow.Such is the one secret to be happier in life. Spread cheer and teach others to do the same.People will gather around you to hear your wisdom，and feel your love.They will come to receive your sharing of what is inside you，all around you，and the messages coming from above. Life is all about giving back.It is not about heartache or lack.Count your blessings every day.Put them in a stack that grows higher and higher，till it sets your spirit on fire with joy! Life is good when you stand up for what you believe.When you enrich the world with your truth，then you will receive all that is good and wonderful.All that is grand will come to you，too.All it takes is living from your heart to understand how the cycle of giving and receiving works.Ah yes！You will discover endless perks! For many people today，especially women who are socialized to give of themselves，and told they are selfish if they want to do something for themselves，the cycle of giving and receiving gets blocked.When a person gives and does not receive，then the energy flow gets cut off. Every person must receive，as well as give.Nature intended for that balance in creating that particular flow. Now why would that giving and receiving be a natural law？Because all people need to open themselves to receiving. In receiving you tell 3
yourself you are worthy and deserving of what life has to offer. 24．According to this passage，the author wants to tell us ________. A．Giving is more important than receiving B．Receiving is more important than giving C．Women need more receiving than giving D．Giving and receiving is a natural law，and both are important 25．If you want to be popular with the people all around you，what should you do? A．Giving them whatever they want to get. B．Dancing to the music to amuse them. C．Spreading cheer and teach others to do the same. D．Sharing whatever you have with them. 26．For the women who are giving，which sentence is right? A．They don't need receive or praise. B．They are selfish if they want to do something for themselves. C．They need receiving to encourage their energy to continue giving. D．They can't understand the secret to be happier in life. 27．The reason why receiving is important is that ________. A．you are worthy and deserving of what life has to offer. B．life is all about giving back not receiving from others. C．the more you give to others，the more you reap yourself. D．we living together is to receive our possessions.