河南省洛阳八中2013-2014学年高二下学期第一次月考数学(文)试题

河南省洛阳八中2013-2014学年高一下学期第一次月考英语试题第一部分：听力（共20题，30分）第一节1. How does Jenny probably feel now?A. Excited.B. Puzzled.C. Sad2. What happened to the man’s bike?A. It broke down.B. The key was missing.C. It was lost.3. Who wants to have a pear?A. The man.B. The woman.C. The women’s brother.4. What has the man been doing?A. Listening to the radio.B. Wacthing TV.C. Doing his homework.5. What does the man probably think of the picnic?A. Terrible.B. Just so-soC. Great.第二节6. What’s Mr Smith doing now?A. Talking on the phone.B. Having a meeting.C. Returning from a meeting.7. What will John do then?A. Go to a meeting .B. Call Mr Smith again.C. Visit Mr Smith this afternoon.8. How does the room look now?A. DirtyB. DarkC. Tidy9. Why did the man come to the man’s house?A. To borrow a book.B. To ask about a party.C. To ask for Mary’s phone number.10. What are the two speakers mainly talking about?A. Part-time jobs they want to do.B. Plans for their summer holiday.C. Lifestyles in different countries.11. What will the man do?A. Go to New YorkB. Go to work in Shanghai.C. Look for a part-time job.12. What do the woman’s like doing?A. Reading magazines.B. Traveling around the US by car.C. Visiting different countries in the world.13. What’s the relationship between the woman and Nana?A. ClassmatesB. RoommatesC. Best friends14. How old is Nana now?A. 5B. 7C. 12.15. Where does Nana come from?A. ChinaB. Korea.C. America.16. What do we know about Nana’s parents?A. They grew up in America.B. They were busy with their work.C. They didn’t know much about Chinese traditions17. When did the speaker’s grandma start writing?A. In the 1930s.B. In the 1940sC. In the 1950s18. What do we know about the speaker’s grandma’s first collection of short stories?A. It came out in the early 1960s.B. It was called Lives of Girls and Women.C. It won her a very important literary prize.19. How many collections of short stories has the speaker’s grandma published in all?A. 4.B. 10 .C. 14.20. What did the speaker’s grandma do in 2013?A. She published her latest book.B. She started writing in English.C. She won an important prize in literature.第二部分阅读第一节（共15题，30分）AAs for Jack, he stayed aboard and lived the life of a true pirate dog to the end of his days.21.According to the first two paragraphs, which of the following isTRUE?A. Bragwynn killed many people when he was young.B. Bragwynn had sailed at sea for many years.C. Bragwynn rowed about in his boat with a young man named Jack.D. Bragwynn did not notice the ship just ahead of him.22.Why did the captain on the ship say “I’ll give up” to Bragwynn?A. Because he was frightened by Bragwynn’s words.B. Because he thought Bragwynn a better captain.C. Because he was really ready to serve Bragwynn.D.Because he had an idea to deal with Bragwynn.23. When Bragwynn stepped through the door , he thought he was going______.A. into the kitchenB. back onto his own boatC. into the bathroomD. to gain the captain’s position24. Which of the following words best describe Bragwynn?A. Mean and brave.B. Crazy and foolish.C. Stubborn and friendly.D. Clever and cruel.BMei Lun and Mei Huan have been the first giant twin pandas born in the US since 1987. The names of these twin male giant panda cubs(幼崽) were announced at Atlanta Zoo last year. Lun Lun, a 15-year-old giant panda, gave birth to the cubs on July 15, 2013. Zoo officials followed Chinese custom and named the brothers after waiting 100 days. Until then, they were simply known as “Cub A” and “ Cub B”.Mei Lun and Mei Huan are the first twin panda cubs to survive in the Unite States. “We’re delighted to finally be able to place two youngsters with names. They have not only made a mark on the history of Atlanta Zoo, but also have made history in the US,” Raymond B. King , the zoo’s president and CEO, said in a statement.Atlanta Zoo teamed up with Good Morning America that month to put the pandas’names to a public vote. China’s Chengdu Research Base of Giant Panda Breeding provided the choices of names. In just 13 days, 51,000 votes poured in on the show’s website.Under a deal between China and the US, giant pandas originally from China are only lent to foreign zoos for scientific study for several years. Zookeepers at Atlanta Zoo are giving regular updates on the twins’ progress in an online blog. Mei Lun and Mei Huan are the fourth and fifth offspring(子女) of Lun Lun and a male giant panda named Yang Yang.The pandas made their first public appearance in a US exhibit last fall. For the three months before their appearance, the online world had watched the twins grow strong and healthy. “We share this joy with our colleagues(同事) in China and with the cub’s fans around the world,” King said.25. The underlined words “ that month” probably refer toA. JulyB. SeptemberC. OctoberD. December26. How did the twins get their names?A. Good morning America named them.B. Zoo Atlanta gave them the names.C. China provided their names for votes.D. The US decided their names.27. What can be inferred from the passage?A. Yang Yang belongs to America.B. The two cubs are not in good health.C. Yang Yang is the father of the twins.D. The cub’s fans haven’t watched the twins in the zoo.28. What’s the main idea of the passage?A. The twin panda cubs were born in the US.B. The twin pandas grew strong and healthy.C. The names of the twin pandas were announced.D. The names of the twin pandas were given by the public.CBuffet is the son of the best investor（投资者）Warren Buffet, and he's the CEO of a philanthropic foundation(慈善基金会). But he’s also a lifelong farmer. He is familiar with the saying that each farmer can expect to have 40 opportunities to improve their harvest. And it’s not just farmers who know there’s a clock running on their efforts. “ We all need to recognize that we only have a fixed amount of time to affect change,”said Howard G. Buffett(HGB)HGB wants to invest more than ＄3 billion, in an effort to end global hunger and poverty for the world’s nearly one billion poor people by 2045. He’s decided to focus much of his effort on farming in the developing world. He believes that the best way to deal with poverty is to change the lives of farmers in the poorest nations on the planet. “It’s a pretty well proven fact that nothing works better at bringing people out of poverty than investment in rural areas,” said HGB.Healthy soils are a most important part of productive farmers, but 1.5 billion people — a fifth of the global population — live on poor land. ”You have to fix the soil,” he said. HGB also has the idea that farmers who own their own land will raise crops with an eye to the long-term health of the soil.He would like to see that balanced with a foreign-aid plan. HGB notes that too often, experts want to make agriculture in developing nations look like farming in rich countries.” It’s not going to happen like that,” said HGB. “You need to consider local differences, local culture.” Many more ideas of HGB can be found in his new book, Forty Chances Finding Hope in a Hungry World.29. From the second paragraph, we can learn that HGB’s main purpose is_______.A. to invest lots of money in farmingB. to end hunger and povertyC. to change farming in the worldD. to help the poorest nations in the world.30. What’s the population of the whole world?A. 1.5 billionB. One fifth billionC. 6 billionD. 7.5 billion31. What can be inferred from the last paragraph?A. The farming methods in rich countries suit developing countries.B. HGB thinks agriculture of the west is not good at all.C. All the farming methods don’t suit developing countries.D. HGB gains his ideas from the book Forty Chances.32. What can be the best title for the passage?A. HGB invests to end hungerB. A great farmer, HGB.C. HGB, one son of Warren BuffetD. HGB invests in the developing countries.DClimate change will increase U.S wildfires, and the smoky air will cause terrible problems in areas far beyond those burned, reports an environmental group Thursday.Two-thirds of Americans, or nearly 212 million, lived in states suffering from wildfire smoke three years ago, according to the report by the Natural Resources Defense Council (NRDC). These areas, which had smoke for at least a week, were nearly 50 times greater than those burned directly by fire.“ It affects a much wider area of the United States than people have realized, ”says author Kim Knowlton, a Columbia University health professor, adding the smoke can move up to hundreds of miles. She says the smoke contains air pollution and can cause several kinds of disease.Texas was hit hardest in 2011, when smoke stayed for at least a week in areas that are home to 25 million people, according to NRDC’s report. Illinois, which recorded no wildfires within its borders( 边界) ,ranked (排名) second with nearly 12 million people affected by smoke that moved in from elsewhere. The other eight states with the most people exposed (接触) to smoky air were, in descending ( 下降的) order Florida, Missouri, Georgia, Louisiana, Michigan, Alabama, Oklahoma and Iowa.Nearly two dozen states had no wildfires within their borders in 2011, but eight of them still had at least one week of smoky air Illinois, Missouri, Iowa, Kansas, Nebraska, Indiana, Wisconsin and Ohio.Only 18 states and the District of Columbia had no people exposed to at least a week of smoke that year, although five of them----Alaska, California, Hawaii, Nevada and Utah---had a large area burned by wildfires.The problem will only get worse, Knowlton say. Scientific research shows climate is causing higher temperatures and health problems.33. We can learn from the first two paragraphs that .A. most Americans suffered from climate change.B. the states burned by wildfires had more serious problems.C. most Americans suffered from wildfire smoke in 2011.D. Every state had wildfire smoke for at least a week.34. Which of the following states had wildfires within its borders?A. TexasB. Kansas.C. OhioD. California.35. What would be the best title for the passage?A. Climate change causes more wildfires.B. More wildfires cause climate change.C. Wildfire smoke becomes a serious health problem.D. Air pollution becomes a terrible problem.第二节（共5小题；每小题2分，满分10分）根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。

河南省高二下学期第一次月考数学试卷（文科）姓名:________ 班级:________ 成绩:________一、单选题 (共12题；共24分)1. （2分）设斜率为2的直线过抛物线的焦点F,且和轴交于点A,若△OAF(O为坐标原点)的面积为4,则抛物线方程为（）.A .B .C .D .2. （2分）观察图形规律，在其右下角的空格内画上合适的图形为（）A .B .C .D .3. （2分） (2017高二下·安阳期中) 复数z1=1+bi，z2=﹣2+i，若的实部和虚部互为相反数，则实数b 的值为（）A . 3B .C . ﹣D . ﹣34. （2分）已知U=R，函数y=ln（1﹣x）的定义域为M，集合N={x|x2﹣x＜0}．则下列结论正确的是（）A . M∩N=NB . M∩（∁UN）=∅C . M∪N=UD . M⊆（∁UN）5. （2分）若直线y=kx+4+2k与曲线y=有两个交点，则k的取值范围是（）A . [1，+∞）B . [﹣1，﹣）C . （， 1]D . （﹣∞，﹣1]6. （2分） (2016高二下·黑龙江开学考) 执行如图所示的程序框图，若输入n的值为6，则输出s的值为（）A . 105B . 16C . 15D . 17. （2分） (2020高一上·安庆期末) 若函数的图像经过点 ,则其图像必经过点（）A .B .C .D .8. （2分）(2016·安徽模拟) 若将函数f（x）=cosx（sinx+cosx）﹣的图象向右平移φ个单位，所得函数是奇函数，则φ的最小正值是（）A .B .C .D .9. （2分）等差数列中，，，设是数列的前n项和，则S8＝（）A . -16B . 16C . -32D . 3210. （2分） (2016高一上·天水期中) 若log2a＜0，（）b＞1，则（）A . a＞1，b＞0B . a＞1，b＜0C . 0＜a＜1，b＞0D . 0＜a＜1，b＜011. （2分）已知向量，，则“”是“”的（）A . 充分不必要条件B . 必要不充分条件C . 充要条件D . 既不充分也不必要条件12. （2分）若复数z满足，则等于（）A .B .C .D .二、填空题 (共4题；共4分)13. （1分） (2016高三上·黑龙江期中) 设△ABC中，角A，B，C的对边分别为a、b、c，且2sinA=sinB+sinC，a=2，则△ABC面积的最大值为________．14. （1分） (2016高一下·信阳期末) 某同学在求解某回归方程中，已知x，y的取值结果（y与x呈线性相关）如表：x234y64m并且求得了线性回归方程为 =﹣ x+ ，则m等于________．15. （1分） (2017高一下·珠海期末) 已知，则△ABM 与△ACM 的面积的比值为________．16. （1分） (2017高二下·太和期中) 已知F是椭圆C： + =1的右焦点，P是C上一点，A（﹣2，1），当△APF周长最小时，其面积为________．三、解答题 (共5题；共40分)17. （5分） (2018高二下·聊城期中) 设复数的共轭复数为，且，，复数对应复平面的向量，求的值和的取值范围.18. （10分） (2017高二上·河南月考) 已知抛物线关于轴对称，它的顶点在坐标原点，点在抛物线上.（1）写出该抛物线的标准方程及其准线方程；（2）过点作两条倾斜角互补的直线与抛物线分别交于不同的两点 ,求证：直线的斜率是一个定值.19. （5分）(2017·石家庄模拟) 已知抛物线C：y2=2px（p＞0）过点M（m，2），其焦点为F，且|MF|=2．（Ⅰ）求抛物线C的方程；（Ⅱ）设E为y轴上异于原点的任意一点，过点E作不经过原点的两条直线分别与抛物线C和圆F：（x﹣1）2+y2=1相切，切点分别为A，B，求证：直线AB过定点F（1，0）．20. （10分） (2015高三上·辽宁期中) 数列{an}满足a1=1，nan+1=（n+1）an+n（n+1），n∈N* ．（1）证明：数列{ }是等差数列；（2）设bn=3n• ，求数列{bn}的前n项和Sn ．21. （10分） (2016高一上·沽源期中) 如图1：已知正方形ABCD的边长是2，有一动点M从点B出发沿正方形的边运动，路线是B→C→D→A．设点M经过的路程为x，△ABM的面积为S．（1）求函数S=f（x）的解析式及其定义域；（2）在图2中画出函数S=f（x）的图象．参考答案一、单选题 (共12题；共24分)答案：1-1、考点：解析：答案：2-1、考点：解析：答案：3-1、考点：解析：答案：4-1、考点：解析：答案：5-1、考点：解析：答案：6-1、考点：解析：答案：7-1、考点：解析：答案：8-1、考点：解析：答案：9-1、考点：解析：答案：10-1、考点：解析：答案：11-1、考点：解析：答案：12-1、考点：解析：二、填空题 (共4题；共4分)答案：13-1、考点：解析：答案：14-1、考点：解析：答案：15-1、考点：解析：答案：16-1、考点：解析：三、解答题 (共5题；共40分)答案：17-1、考点：解析：答案：18-1、答案：18-2、考点：解析：考点：解析：答案：20-1、答案：20-2、考点：解析：答案：21-1、答案：21-2、考点：解析：。

注意：时间90分钟，满分120分一卷I. 阅读理解（每小题2分，满分30分）ＡIn the past, many disabled Chinese people led very restricted (受限制的) lives. They had little chance to find work or support themselves. But their situation has improved dramatically over recent decades.In the past five years, the government has been stepping up efforts to help employ disabled people. Huge investments have been made in training, and many disabled people have found jobs and become financially independent.When Wu Zihe was growing up, she was like a prisoner in her home. Having a job was something she could only dream about. But now she is famous for her art. Wu is working on a landscape. She said, “I can earn 30 or 40 yuan for paintings like this, if they are sold in groups. If I sell them separately, I can get about 100 yuan. It only takes me one day to finish one painting, so I can earn 1,000 to 2,000 yuan a month.”Wu Zihe practices knife-drawing, which originated in her hometown Dunhua. If one has the eyes, the brain and hands, it takes about a year to learn the basic techniques.Dunhua government’s official Zhang Chunhua said, “We think it suits disabled people very well. So the government spent 10 million yuan to set up this knife-painting training center for them.”Training in the center is free. Even the materials are provided by the government. Since last year, the center has trained over 200 disabled persons like Wu Zihe. They usually earn 500 to 1,000 yuan per month. Sometimes they make as much as 5,000 yuan. That’ s much higher than average salaries in the area.This year, the city has set up a center to sell these works. Art fans from more than ten countries and regions have bought paintings.1. How was life for the disabled people in the past?A. They had to stay at home and had little chance to find jobs.B. According to the law, they led very restricted lives.C. With the help of the government, they led a comfortable life.D. They had to learn to paint to earn a living.2. From the passage we can learn that ________.A. the disabled had to earn a living by workingB. all the disabled have found jobs and become financially independent these yearsC. the disabled people’s living situation has improved greatly in recent yearsD. more and more disabled people will learn to paint3. From the last paragraph we can conclude that ____.A. Dunhua has set up a center to sell knife-drawing worksB. perhaps some of Wu Zihe’s paintings could be brought abroadC. only the disabled people’s paintings could be sold to foreignersD. people who like knife-drawing art have bought the disabled people’s paintings4. What would be the best title of the passage?A. A kind of folk art in China.B. Knife-drawing was first developed in Dunhua.C. A knife-painting training center in Dunhua.D. China helps the disabled find jobs.B5. According to the passage, winners .A. deal with problems rather than blame othersB. meet with fewer difficulties in their livesC. have responsible and able colleaguesD. blame themselves rather than others6. The underlined word remedy in Paragraph 1 is closest in meaning to .A. avoidB. acceptC. improveD. consider7. When your colleague brings about a problem, you should .A. find a better way to handle the problemB. blame him for his lack of responsibilityC. tell him to find the cause of the problemD. ask a more able colleague for help8. Which of the following is the best title for the passage?A. A Winner’s Opportunity.B. A Winner’s Secret.C. A Winner’s Problem.D. A Winner’s Achievement.CWhat will people die of 100 years from now? If you think that is a simple question, you have not been paying attention to the revolution that is taking place in bio-technology(生物技术). With the help of new medicine, the human body will last a very long time. Death will come mainly from accidents, murder and war. Today’s leading killers, such as heart disease, cancer, and aging itself, will become distant memories.In discussion of technological changes, the Internet gets most of the attention these days. But the change in medicine can be the real technological event of our times. How long can humans live? Human brains were known to decide the final death. Cells(细胞) are the basic units of all living things, and until recently, scientists were sure that the life of cells could not go much beyond l20 years because the basic materials of cells, such as those of brain cells, would not last forever. But the upper limits will be broken by new medicine. Sometime between 2050 and 2100, medicine will have advanced to the point at which every 10 years or so, people will be able to take medicine to repair their organs ( The medicine, made up of the basic building materials of life, will build new brain cells, heart cells, and so on—in much the same way our bodies make new skin cells to take the place of old ones.It is exciting to imaging that the advance in technology may be changing the most basic condition of human existence, but many technical problems still must be cleared up on the way to this wonderful future.9.According to the passage, human death IS now mainly caused by .A、diseases and agingB、accidents and warC、accidents and agingD、heart disease and war10.In the author’ s opinion, today’s most important advance in technology lies in.A、medicineB、the InternetC、brain cellsD、human organ11.Humans may live longer in the future because .A、heart disease will be far away from usB、human brains can decide the final deathC、the basic materials of cells will last foreverD、human organs can be repaired by new medicine12.We can learn from the passage that .A、human life will not last more than 120 years in the futureB、humans have to take medicine to build new skin cells nowC、much needs to be done before humans can have a longer lifeD、we have already solved the technical problems in building new cellsDAmong all the malignancies (恶性肿瘤), lung cancer is the biggest killer: more than 10,000 Americans die of the disease a year. Giving up smoking is one of the obvious ways to reduce the risk, but another answer may lie in the kitchen. According to a new report, even heavy smokers may be protected from developing lung cancer by a simple dietary measure: a daily portion of carrots, spinach or any other vegetable or fruit containing a form of vitamin A called carotene (胡萝卜素).The finding, published in the British medical journal ＴｈｅＬａｎｃｅｔ, is a part of a long-range investigation of diet and disease. Since 1957 a team of American researchers has monitored the dietary habits and medical histories of 2,000 middle-aged men employed by the Western Elect ric Co. in Chicago. Led by Dr Richard Shekelle of Chicago’s Rush-Presbyterian-St. Luke’s Medical Center, the researchers recently began to sort out the links between the subjects’ dietary patterns and cancer. Other studies of animals and humans have suggested that vitamin Aoffers some protection against lung cancer. The connection seems logical, explains Shekelle, since vitamin A is essential for the growth of the epithelial (上皮的) tissue that lines the airways of the lungs.But the earlier research did not distinguish between two different forms of the vitamin. Preformed vitamin A is found mainly in liver and dairy products like milk, cheese, butter and eggs. But vitamin A is also made in the body from carotene, which is abundant in a variety of vegetables and fruits, including carrots, spinach, squash (南瓜), tomatoes, sweet potatoes and apples.In the Western Electric study, Shekelle and his colleagues found few connections between the incidence of lung cancer and the consumption of foods containing preformed vitamin A. But when they examined the data on carotene intake, they discovered a significant relationship. Among the 488 men who had the lowest level of carotene consumption, there were fourteen cases of lung cancer; in a group of the same size that ate the most carotene, only two cases developed. The apparent protective effect of carotene helps even longtime smokers, but to a lesser degree.Further studies will be necessary before the links between lung cancer and carotene can be firmly established. In the meantime, researchers warn against large numbers of vitamin A pills, because the tablets contain a form of the chemical that can be extremely poisonous in high doses. Instead, they advise a well-balanced diet that includes foods rich in carotene. For a smoker, half a cup of carrots every day might make the difference between life and death.13. Which of the following might be most helpful for people to avoid getting lung cancer?A. Eating vegetables containing carotene every day.B. Giving up smoking right now.C. Eating more fresh fruits every day.D. Eating a simple everyday diet.14. From Paragraph 2 we can learn that ________.A. Shekelle has been researching lung cancer since 1957B. the links between diet and lung cancer were discovered by Shekelle himselfC. Shekelle got the finding after monitoring 2,000 men for many yearsD. the researchers have investigated the relationship between diet and disease for half a century15. The examinations on groups of people of the same size showed that ________.A. few people got lung cancer because most of them have a well-balanced dietB. the incidence of lung cancer is closely related to the intake of caroteneC. the intake of carotene has little protective effect on longtime smokersD. the result of the earlier research is false and of no useII. 完形填空（30分）In our discussion with people on how education can help them succeed in life, a woman remembered the first meeting of an introductory__16__course about 20 years ago.The professor __17__the lecture hall, placed upon his desk a large jar filled with dried beans （豆）, and invited the students to _18_how many beans the jar contained. After __19__shouts of wildly wrong guesses the professor smiled a thin, dry smile, announced the __20__ answer, and went on saying, ”You have just __21__an important lesson about science. That is Never__22__ your own senses.”Twenty years later, the __23__could guess what the professor had in mind. He __24__himself,perhaps, as inviting his students to start an exciting __25__into an unknown world invisible（无形的）to the 26 ,which can be discovered only through scientific 27 . But the seventeen-year-old girl could not accept or even 28 the invitation. She was just 29 to understand the world. And she 30 that her firsthand experience could be the 31 .The professor, however, said that it was 32 .He was taking away her only 33 for knowing and was providing her with no substitute. “I remember feeling small and 34 ,”the women says,“and I did the only thing I could do. I 35 the course that afternoon, a nd I haven’t gone near science since.”16．A．art B．science C．history D．math17．A．looked at B．searched for C．got through D．marched into18．A．count B．guess C．report D．watch19．A．warning B．turning away C.giving D．listening to20．A．ready B．correct C. Difficult D.possible21．A．prepared B．taught C．Taken D．Learned22．A．trust B．sharpen C．Show D．lose23．A．lecturer B．speaker C.Woman D．Scientist24．A．described B．respected C．saw D．served25．A．movement B．change C．Rush D．V oyage26．A．eye B．knowledge C．Light D．professor27．A. senses B．spint C．Methods D.model28．A.make B．present C．Refuse D.hear29．A.suggesting B．pretending C．Waiting D.beginning30．A.doubted B．proved C．Explained D.believed31．A．growth B．faith C．Truth D.strength32．A．firm B．interesting C．wrong D．acceptable33．A．task B．tool C．success D．connection34．A．cruel B．proud C．frightened D．brave35．A．dropped B．started C．passed D．missedIII. 任务型阅读（七选五，10分）Many schools require yearly parent teacher conferences for all students. ___71__.The list below is to help teachers prepare themselves for these often difficult conferences.___72__.When you have students who are struggling in either their academics or their behavior, you should communicate with their parents using notes or phone calls.Come to the conference well-prepared. If the student is having a hard time with their work, show the parents their grades and samples of their work. ___73___ .If the student is misbehaving, then you should make detailed notes of their behavior before the conference. Bring these notes to the conference so that parents can understand how their children are behaving.____74___. For example, you might say something about their creativity, their handwriting, their sense of humor, or make some other comment. Instead of restating the problems you’ve already discussed, end with a comment that offers hope for the future. You could say something like, “ Thanks for meeting with me today. I know that working together we can help Johnny succeed.”Some teachers may have to deal with an angry parent at some point. ___75___. Much anger can be avoided if the parents are informed. Don’t get excited yourself and make s ure you avoid shouting.A. Communicating with parents before a conference is necessary.B. Try to think of something nice to say about the students that have problems.C. At the end of the conference, you should make a conclusion.D. A paren t teacher conference can have a huge impact on a student’s work and behavior.E. Remember to thank the parents for coming to the conference and working with you.F. Remember that the best way to solve this is to keep parents informed every step of the way.G. It is easier for parents to understand the problem if they can actually see examples of their children’s work.二卷IV. 语法填空（10小题，每题1.5分，共15分）阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。

河南省洛阳市八中2013-2014学年高二下学期第二次月考数学（文）试题一、选择题（每小题4分，共40分）1.曲线的极坐标方程θρsin 4=化为直角坐标为( ).A.4)2(22=++y xB.4)2(22=-+y xC.4)2(22=+-y xD.4)2(22=++y x2.已知点P 的极坐标是),1(π，则过点P 且垂直极轴的直线方程是( ).A.1=ρB.θρcos =C.θρcos 1-=D.θρcos 1= 3.已知点M 的极坐标为⎪⎭⎫ ⎝⎛35π，,下列所给四个坐标中能表示点M 的坐标是( ).A.53，-⎛⎝ ⎫⎭⎪πB.543，π⎛⎝ ⎫⎭⎪C.523，-⎛⎝ ⎫⎭⎪πD.⎪⎭⎫ ⎝⎛-355π， 4.若直线的参数方程为12()23x t t y t =+⎧⎨=-⎩为参数，则直线的斜率为( ). A.23 B.23- C.32 D.32- 5.直线3x-4y-9=0与圆：⎩⎨⎧==θθsin 2cos 2y x ，(θ为参数)的位置关系是( ). A.相切 B.相离 C.直线过圆心 D.相交但直线不过圆心6.在参数方程⎩⎨⎧+=+=θθsin cos t b y t a x （t 为参数）所表示的曲线上有B 、C 两点，它们对应的参数值分别为t 1、t 2，则线段BC 的中点M 对应的参数值是( ).7.实数x 、y 满足3x 2＋2y 2=6x ，则x 2＋y 2的最大值为( ).A.27B.4C.29D.58.直线()的倾斜角为为参数t l t x t y ︒︒+-=+=20sin 220cos 5{:( )A.200B.700C.1600D.1200.率为相切，则双曲线的离心为参数）的渐近线与曲线、已知双曲线θθθ({)0,0(19cos 2sin y 2222+==>>=-x b a by a x A 、2 B 、2 C 、23 D 、332A(,))C(,)310、在极坐标系中，2、、00则ABC 为24ππ--∆( ) A 、正三角形 B 、直角三角形C 、锐角等腰三角形D 、直角等腰三角形二、填空题（每小题4分，共16分）11、圆锥曲线()为参数θθθ⎩⎨⎧==sec 3tan 2y x 的离心率是 。

洛阳第八中学13-14学年第二学期月考高一物理试卷满分：100分 时间：60分钟 （Ⅰ卷 60分）一．选择题（共60分，全对得5分，少选得3分）1.下列关于电现象的叙述中正确的是 （ ）A.玻璃棒无论与什么物体摩擦都带正电，橡胶棒无论与什么物体摩擦都带负点B.带电现象的本质是电子的转移，物体得到电子一定显负电性，失去电子显正电性C.电子和质子带电量都是元电荷D.一个带电体的电荷量是元电荷的205.5倍2.关于库仑定律，下列说法正确的是（ ）A ．库仑定律适用于点电荷，点电荷其实就是体积最小的带电体B ．根据221rq q k F =，当两个带电体间的距离趋近于零时，库仑力将趋向无穷大 C ．带电量分别为Q 、3Q 的点电荷A 、B 相互作用时，B 受到的静电力是A 受到的静电力的3倍D ．库仑定律的适用条件是：真空和静止点电荷3. 下列说法正确是（ ）A ．电场强度为零的地方，电势一定为零B ．电势为零的地方，电场强度不一定为零C ．电场中某点场强方向与放入该点的电荷所受电场力方向相同D ．在等量异种电荷形成的电场中，两点电荷连线的中点处场强最大4. 处于静电平衡中的导体,内部场强处处为零的原因是( )A.导体内部无电场B.外电场不能进入导体内部C.所有感应电荷在导体内部产生的合场强为零D.外电场和所有感应电荷的电场在导体内部叠加的结果为零5. 如图所示为半径相同的两个金属小球，A 、B 带有电量相等的电荷，相隔一定距离，两球之间的相互作用力大小是F ，今用第三个半径相同的不带电的金属小球先后与A 、B 两球接触后移开．这时，A 、B 两球之间的相互作用力的大小是（A 、B 两球均可看成点电荷）（ ） A.8F B.4F C. 83F D.43F 6.如图所示，实线是一簇未标明方向的由点电荷Q 产生的电场线，若带电粒子q （|Q|>>|q|）由a 运动到b ，电场力做正功。

已知在a 、b 两点粒子所受电场力分别为Fa 、Fb ，则下列判断正确的是 （ ）A ．无论Q 和q 为何种电荷，都有Fa ＞FbB.无论Q 和q 为何种电荷，都有φa >φbC ．若Q 为正电荷，则q 带正电，pb Pa E E >D ．若Q 为负电荷，则q 带负电，pb PaE E >7.一带电油滴在匀强电场E 中从a 到b 的运动轨迹如图中虚线所示，电场方向竖直向下，不计空气阻力．此带电油滴从a 运动到b 的过程中，能量变化情况是（ ）A ．动能减小B ．电势能增加C ．重力势能和电势能之和减小D．动能和电势能之和增加8. 如图所示，在真空中有两个等量带正电的点电荷，分别置于P、Q两点，O点是它们连线的中点，A、B为P、Q连线的中垂线上的两点，下列说法正确的是（）A．连线中点O的场强为零B．中垂线是一个等势面C．将一正电荷q由A点沿中垂线移动到B点，在此过程中q的电势能一定逐渐减少D．将一正电荷q由A点沿中垂线移动到B点，在此过程中q受到的电场力一定逐渐减小9. 如图中虚线所示为静电场的等势面1、2、3、4，相邻的等势面之间的电势差相等，其中等势面3的电势为0．一带正电的点电荷在静电力的作用下运动，经过a、b点的动能分别为20eV和2eV．当这一点电荷运动到某一位置，其电势能变为-8eV时，它的动能应为（）A．8eV B．12eV C．16eV D．30eV10. 如图甲所示，在x轴上有一个点电荷Q（图中未画出），O、A、B为轴上三点。

河南省洛阳市八中2013-2014学年高一下学期第二次月考数学（理）试题一、选择题（每题5分，共60分）1.如果角α的终边过点(2sin 60,2cos60)︒-︒，则sin α的值等于( )11. . . .22A B C D - 2．已知1sin 1cos 2αα+＝－，则cos 1-sin αα的值是 （ ） A ．12 B ．12－ C ．2 D ．－2 3.函数y ＝cosx 1－sin 2x ＋sinx 1－cos 2x ＋tanx tan 2x的值域是（ ） A.{3，－1 } B.{1，3} C.{－3，－1，1} D.{－1，1，3}4.已知角α是第二象限角，且|2cos α|=— cos 2α,则角2α是（ ） A ．第一象限角 B. 第二象限角 C.第三象限角 D.第四象限角5.若1sin 63πθ⎛⎫-= ⎪⎝⎭，则cos 3πθ⎛⎫+= ⎪⎝⎭( ) A ．－79 B ．－13 C.13 D.796．下列四个函数中，既是(0,)2π上的增函数，又是以π为周期的偶函数的是（ ） A.y =tanx B. |sin |y x = C. cos y x = D. |cos |y x = 7．为得到函数)32cos(π+=x y 的图象, 只需要将函数x y 2sin =的图象向( ) 个单位A. 左平移125πB. 右平移125πC. 左平移65πD. 右平移65π 8.已知()sin()cos()4f x a x b x παπβ=++++（,,,a b αβ为非零实数），(2013)5f =,则(2014)f =（ ）A ．1B ．3C ．5D ．不能确定9.函数)23sin(x y -=π的单调递减区间是（ ） A ．2,,;63k k k Z ππππ⎡⎤-+-+∈⎢⎥⎣⎦ B ．52,2,;1212k k k Z ππππ⎡⎤-+∈⎢⎥⎣⎦C ．,,;63k k k Z ππππ⎡⎤-+∈⎢⎥⎣⎦ D ．5,,;1212k k k Z ππππ⎡⎤-+∈⎢⎥⎣⎦10.函数y ＝－ 52sin(4x ＋2π3)的图象与x 轴的多个交点中,离原点最近的一个是（ ） A. (－ π6，0) B. (－ π12，0) C. (π12，0) D. (π6，0) 11．函数)sin(ϕω+=x A y 在一个周期内的图象如下，此函数的解析式为（ ） A.)322sin(2π+=x y B ．)32sin(2π+=x y C ．)32sin(2π-=x y D ．)32sin(2π-=x y12. 关于函数()4sin(2),()3f x x x R π=+∈有下列命题：①由12()()0f x f x ==可得12x x -必是π的整数倍；②()f x 的表达式可改写为()4cos(2)6f x x π=-；③()f x 的图象关于点(,0)6π-对称；④()f x 的图象关于直线3x π=对称；⑤()f x 在区间,312ππ⎛⎫- ⎪⎝⎭上是增函数；其中正确的是（ ） A ．②③⑤ B ．①②③ C ．②③④ D ．① ③⑤二、填空（每题5分，共20分）13.扇形的周长是4，面积是1，则扇形的圆心角α的弧度数是________.14.在区间[2,2]ππ-上满足2cos sin x x =的x 的值有 个 15.__________.16.当7,66x ππ⎡⎤∈⎢⎥⎣⎦时，函数23sin 2cos y x x =--的值域为__________. 答案：13. 14.15. 16.三、简答题（共40分）.17.(8分)已知tan()=2πα-,计算（1）ααααcos 2sin cos 2sin -+ （2） ()()()()22223sin 2cos sin 2cos 12sin cos παπαπαπααα+--+-+++.18.(10分)已知α∈(0，π)，sin α+cos α= 31 计算（1）sinαcos α （2）sin α－cos α19（10分）已知函数cos 2(0)6y a b x b π=-+>⎛⎫ ⎪⎝⎭的最大值为23，最小值为21- （1）求b a ,的值；（2）已知函数)3sin(4)(π--=bx a x g ，当1)(-≥x g 时求自变量x 的集合.20（本题12分）已知函数R x x x f ∈-=),32sin(3)(π（1）在给定的平面直角坐标系中，利用五点法画函数)32sin(3)(π-=x x f ，[]π,0∈x 的简图；(2)求),32sin(3)(π-=x x f []0,π-∈x 的单调增区间；（3）若方程()f x m =在]0,2[π-上有实根，求m 的取值范围．BBACC BABDC AA 17、（1）0（2）18、（1）(2)19、(1)(2)20、(1) 略（2）（3）。

河南省洛阳八中2013-2014学年高一下学期第一次月考政治试题一、单项选择题(下列各题的四个选项中，只有一项最符合题意。

每小题2分，共60分)1．我国人民民主专政的本质是A．对绝大多数的公民实行民主 B．对极少数敌人实行专政C．人民当家作主 D．民主具有广泛性和真实性2.关注民生、重视民生、保障民生、改善民生，伴随着“民生”二字成为每年政府工报告的关键词，一系列重大民生政策不断出台，惠及亿万民众，诠释着“权为民所用、为民所系，利为民所谋”的丰富内涵。

政府把民生问题放在首位的根本原因是A．解决民生问题始终是执政党的中心任务B．我国现阶段社会的主要矛盾是民生问题C．我国是人民民主专政的社会主义国家D．民生问题是大多数社会成员最关切的社会问题3．在十一届全国人大代表中，胡小燕等3位农民工当选为中国首批农民工代表，十二届全国人大代表中的农民工代表增加到31位。

农民工当人大代表①体现了我国民主的广泛性和真实性②反映了国家对公民民主权利的尊重③说明我国民主制度不断完善④表明我国社会主义民主是全民民主A．②③④ B．①②③ C．①②④ D．①③④4．台湾一家公司在东南大学一场招聘会上，宣传台湾为“本国”，遭到学生抗议，一位同学指出其错误后，该企业负责人依然不改，在场300余名大学生集体愤然退场。

大学生的做法A．说明国家利益与个人利益是一致的 B．自觉履行了公民的义务C．不利于团结台湾人民，维护国家统一 D．履行了维护国家统一的权利5.下列关于民主与专政关系的说法正确的有①民主与专政相辅相成、互为前提②民主是专政的基础，专政是民主的保障③对一定阶级既实行民主又实行专政④统治阶级的民主意味着对被统治阶级的专政A.①②③B.①③④C.①②④D.②③④6．恩格斯说：“国家无非是一个阶级镇压另一个阶级的机器。

”坚持人民民主专政是社会主义现代化建设的政治保证。

从发扬社会主义民主的角度看，人民民主专政的政治保证作用主要体现在①确保人民当家作主的地位②保证人民依法享有广泛的权利和自由③尊重和保障人权④打击敌对分子和敌对势力A．①②③B．②③④C．①③④D．①②④7.我国公民参与管理国家和管理社会的基础和标志是A.享有生存权和发展权B.行使选举权和被选举权C.行使参与权和决策权D.享有劳动权和受教育权8. 2013年8月16日―24日，江苏省南京市将举办第二届亚洲青年运动会，亚青会期间，民众要展示良好的文明风貌，如果你去南京观赛，应履行A．批评和建议的权利 B．当家作主的权利C．维护国家荣誉和利益的义务 D．国际交流与合作的职能9.公民在法律面前一律平等，是指A．公民享有的权利和义务都是相同的B．公民的社会地位都是相同的C．司法平等和守法平等D．立法平等和执法平等在我国目前7000多万中共党员中，学生党员占了近200万，这绝对是一批新兴的政治力量。

洛阳八中高一数学月考试卷 2014、10一、选择题：1. 设全集{1,2,3,4,5}U =，{1,3,4}M =，{2,4,5}N =，则()()U U C M C N ⋂=A 、{4}B 、{1,3}C 、{2,5}D 、∅2.设集合M={x ∣y=2x+3,x ∈R},N={y ∣x 2-y=0,x ∈R},则集合M ∩N= A {（-1，1），（3，9）} B {y ∣y ≥0} C. R D {1,9}3. 函数f(x)=2-x +(x －4)0的定义域为( )A 、{x |x >2，且x ≠4}B 、[)()2,44,+∞ C 、[)2,+∞ D 、(]2,∞- 4. 下列各组函数是同一函数的是( ) ①3)5)(3(1+-+=x x x y ，52-=x y ；②111-+=x x y ，)1)(1(2-+=x x y ；③x x f =)(,2)(x x g =； ④()f x =31)(-⋅=x x x F ； ⑤21)2()(x x f =,x x f 2)(2= A ．①、② B ．②、③ C ．④ D ．③、⑤5. 集合A 可表示为}1,,{a b a ，也可表示为{2a ,a +b ,0}，则的b a 20122012+值为 A 、0 B 、-1C 、1D 、±1 6. 已知⎩⎨⎧<+≥-=)6()2()6(5)(x x f x x x f ，则)3(f 为 （ ） A ． 2 B ． 3 C ． 4 D ． 57. 已知函数2)1(2)(2+-+=x a x x f 在区间(]4,∞-上是减函数，则a 范围是A 、(]3,-∞-B 、[)+∞-,3C 、(]3,+∞-D 、[)+∞,38. 已知函数f (x )＝⎩⎪⎨⎪⎧2x ，x ＞0，x ＋1，x≤0.若f(a)＋f(1)＝0，则实数a 的值等于( ) A ．－3 B ．－1 C ．1 D ．39．若g (x )＝1－2x ，()f g x =⎡⎤⎣⎦221x x -(x ≠0)，则12f ⎛⎫ ⎪⎝⎭等于( ) A ．1 B ．3 C ．15 D ．3010．已知集合A 是函数()f x x=的定义域，集合B 是()f x 的值域，则A B 的子集的个数是( )A ．4B ．6C ．8D ．1611. 若一系列函数的解析式相同，值域相同，但其定义域不同，则称这些函数为“同族函数”，那么2y x =，值域为{}1,4的“同族函数”共有( )A ．7个B ．8个C ．9个D ． 10个 12. 奇函数()f x 在(0)+∞，上为增函数，且(2)0f =，则不等式()()0f x f x x --<的解集为A (20)(0,2)-， B (2)(0,)-∞-，2C (2)(2)-∞-+∞，， D ．(20)(2)-+∞，， 二、填空题：13．函数24++=x x y 的定义域为 . 14. 若)(x f 是一次函数，14)]([-=x x f f 且，则)(x f = _________________.15．已知幂函数)(x f y =的图象过点=)9(),2,2(f 则 .16．若一次函数b ax x f +=)(有一个零点2，那么函数ax bx x g -=2)(的零点是 .三、解答题（每题14分：17．）已知集合{|121}A x a x a =-<<+，{|01}B x x =<<，若A B =∅，求实数a 的取值范围。

河南省洛阳市八中2013-2014学年下学期高二年级第二次月考物理试卷注意事项：1. 答题前答题卡内填写好自己的姓名、班级、考号等信息2. 请将答案正确填写在答题卡上分卷I分卷I 注释一、选择题(每小题3分，1-19是单选题；20题是不定项选择题。

)1、下列关于静电除尘的说法中正确的是( )A．进入除尘器后，烟雾中的颗粒被强电场电离而带正电，颗粒向电源负极运动B．除尘器中的空气被电离，烟雾颗粒吸附电子而带负电，颗粒向电源正极运动C．烟雾颗粒带电后，受到竖直向下的电场力而向下运动D．烟雾颗粒被强电场粉碎成更小的颗粒，排到大气中人眼看不到2、关于元电荷和点电荷，下列说法中正确的是（）A．元电荷实质上是指电子和质子本身B．所有带电体的电荷量一定等于元电荷的整数倍C．体积很大的带电体一定不能看做点电荷D．点电荷一定是电量很小的电荷3、两个完全相同的金属小球带有电量相等的电荷，相距一定的距离，相互作用力为F，现在用第三个完全相同不带电的小金属球C先跟A接触，再和B接触，然后移去C，则A、B 间的相互作用力为:A. F/8B. F/4C. F3/8D. F/34、一带负电荷的质点，在电场力作用下沿曲线abc从a运动到c，已知质点的速率是递减的．关于b点电场强度E的方向，下列图示中可能正确的是(虚线是曲线在b点的切线)A．B．C．D．5、下列各图中，正确描绘两个等量正电荷电场线的是（）6、一充电后的平行板电容器保持两极板的正对面积、间距和电荷量不变，在两极板间插入一电介质，其电容量C和两极板间的电势差U的变化情况是A．C增大B．C减小C．U增大D．U减小7、已知磁敏电阻在没有磁场时电阻很小，有磁场时电阻变大，并且磁场越强阻值越大．为探测磁场的有无，利用磁敏电阻作为传感器设计了如图所示电路，电源的电动势E和内阻r 不变，在没有磁场时调节变阻器R使灯泡L正常发光．若探测装置从无磁场区进入强磁场区（灯泡不会烧坏），则 ( )A．灯泡L变亮B．灯泡L变暗C．电流表的示数变小D．电流表的示数变大8、在如图所示电路中，当滑动变阻器滑片P向下移动时，则（）A．A灯变亮、B灯变亮、C灯变亮B．A灯变亮、B灯变亮、C灯变暗C．A灯变亮、B灯变暗、C灯变暗D．A灯变亮、B灯变暗、C灯变亮9、两电阻R1、R2中的电流I和电压U的关系图线如图所示，可知两电阻的大小之比R1：R2等于（）A．1：3 B．3：1 C．1：D．：110、关于磁感应强度的下列说法中，正确的是（）A．通电导线在磁场中受到安培力越大的位置，则该位置的磁感应强度越大B．磁感线上某一点的切线方向就是该点磁感应强度的方向C．垂直磁场放置的通电导线的受力方向就是磁感应强度方向D．磁感应强度的大小、方向与放入磁场的导线的电流大小、导线长度、导线取向等均无关11、关于通电直导线周围磁场的磁感线分布，下列示意图正确的是12、如图所示，固定的水平长直导线中通有向右电流I，闭合的矩形线框与导线在同一竖直平面内，且一边与导线平行.线框由静止释放，在下落过程中（）A．穿过线框的磁通量保持不变B．线框所受安培力的合力为零C．线框中产生顺时针方向的感应电流D．线框的机械能不断增大13、下列关于磁通量的说法，正确的是（）A．在匀强磁场中，穿过某一个面的磁通量等于磁感应强度与该面面积的乘积B．磁通量是矢量，其正负表示方向C．磁通量是形象描述穿过某一个面的磁感线条数的物理量D．磁通量越大，磁通量的变化就越快14、如图所示，闭合线圈上方有一竖直放置的条形磁铁，磁铁的N极朝下，当磁铁向下运动时(但未插入线圈内部)( )A．线圈中感应电流的方向与图中箭头方向相同，磁铁与线圈相互吸引B．线圈中感应电流的方向与图中箭头方向相同，磁铁与线圈相互排斥C．线圈中感应电流的方向与图中箭头方向相反，磁铁与线圈相互吸引D．线圈中感应电流的方向与图中箭头方向相反，磁铁与线圈相互排斥15、如图所示，足够长平行金属导轨倾斜放置，倾角为370，宽度为0.5m，电阻忽略不计，其上端接一小灯泡，电阻为1Ω。

河南省洛阳市八中2013-2014学年高一下学期第二次月考化学试题一、选择题（每小题只有一个选项．．．．符合题意，每小题2分，共30分。

）1．下列用水就能鉴别的一组物质是A．苯、己烷、四氯化碳B．苯、乙醇、四氯化碳C．硝基苯、乙醇、四氯化碳D．硝基苯、乙醇、乙酸2．既可用鉴别甲烷与乙烯，又可除去甲烷中混有乙烯的最佳方法是A．通入酸性高锰酸钾溶液中B．通入足量溴水中C．一定条件下通入H2D．点燃3．等物质的量的下列物质，在空气中充分燃烧，消耗氧气最少的是（）A．乙烯B．乙烷C．乙醛D．乙醇4．下列化学式一定表示一种物质的是（）A．CF2Cl2B．C6H12O6C．C12H22O11D．（C6H10O5）n5．将W1 g光亮的铜丝在空气中加热一段时间后，迅速插入下列物质中，取出干燥，如此反复几次，最后取出铜丝、干燥、称得其质量为W2 g。

下列铜丝所插物质与插入前后铜丝的质量关系不正确的是A．石灰水W1<W2B．CO W1= W2C．NaHSO4W1>W2 D．乙醇溶液W1<W26．下列说法正确或符合科学事实的是A．等质量的CO与C2H4体积一定相等B．甲烷、乙醇、乙酸均能发生加成反应C．油脂、淀粉、蛋白质在一定条件下都能发生水解反应D．工业上常用苯的产量衡量一个国家石油化工发展水平7．甲醛(CH2O)、乙酸(C2H4O2)和丙醛(C3H6O)组成的混合物中，氧元素的质量分数是37%，则碳元素的质量分数为A．27% B．28% C．54% D．无法计算8．下列关于常见有机物的说法不正确．．．的是A．乙烯和苯都能与溴水反应B．乙酸和油脂都能与氢氧化钠溶液反应C．糖类和蛋白质都是人体重要的营养物质D．葡萄糖和乙醛均能和银氨溶液及新制的氢氧化铜悬浊液反应9．丙烯酸的结构简式为CH2=CH—COOH，其对应的性质中不正确的是A．与钠反应放出氢气 B．能与溴水发生取代反应C．与乙醇能发生酯化反应D．发生加聚反应生成高分子化合物10．实验室用乙酸、乙醇、浓H2SO4制取乙酸乙酯，加热蒸馏后，在饱和Na2CO3溶液上面得到无色油状液体，当振荡混合时，有气泡产生，原因是A．产品中有被蒸馏出的H2SO4 B．有部分未反应的乙醇被蒸馏出C．有部分未反应的乙酸被蒸馏出D．有部分乙醇跟浓H2SO4作用生成乙烯11．下列说法正确的是A．碳碳间以单键结合，碳原子剩余价键全部与氢原子结合的烃一定是饱和链烃B．分子组成符合C n H2n+2的烃一定是烷烃C．正丁烷分子中所有原子均在一条直线上D．碳氢原子个数比为1︰3的烃有2种12．下列有机反应中，不属于取代反应的是A ．B．2CH3CH2OH+O22CH3CHO+2H2OC．ClCH2CH=CH2+NaOH HOCH2CH=CH2+NaClD．13．在苯环结构中，不存在单双键交替结构，可以作为证据的事实是①苯不能使酸性KMnO4溶液褪色②经测定，苯中碳碳键完全相同，为平面正六边形分子③苯能在一定条件下跟H2加成生成环己烷④苯在FeBr3存在的条件下同液溴可发生取代反应，但不因化学变化而使溴水褪色A．①②③④ B．①②④ C．②③④ D．①③④14、用N A表示阿伏加德罗常数的值，下列叙述中正确的是A．在标准状况下，完全燃烧2.24L辛烷可生成CO2分子数为0.8N AB．常温常压下，30 g乙酸与30 g葡萄糖含有的氧原子数都是N AC．1 mol －OH所含的电子数为17N AD．1 mol Cl2通入足量的NaOH溶液中充分反应转移的电子数为2N A15、0.4 mol乙烯与氯气发生加成反应，然后用加成反应的产物在光照条件下与氯气发生取代反应，则两过程消耗氯气的总物质的量是A．0.4 mol B．0.8 mol C．2 mol D．1 mol二、填空题（本题包括3个题，共20分）16．（8分）已知乳酸的结构简式为CH3CH COOHOH。