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云南省保山市2018届高三第二次市级统测英语试题含答案

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云南省保山市2018届高三第二次市级统测英语试题注意事项：1.答题前，考生务必用黑色碳素笔将自己的姓名、准考证号、考场号、座位号在答题卡上填写清楚。

2.每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑。

如需改动，用橡皮擦干净后，再选涂其他答案标号。

在试题卷上作答无效。

3.考试结束前，请将本试卷和答题卡一并交回。

满分150分，考试用时120分钟。

第一部分听力（共两节，满分30分）注意，听力部分答题时请先将答案标在试卷上，听力部分结束前你将有两分钟的时间将答案转涂到答题卡上。

第一节（共5小题；每题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. Which of the following is George’s favorite sport?A. Tennis.B. Swimming.C. Fishing.2. What does the woman advise buying for Emma?A. A camera.B. A laptop.C. A mobile phone.3. What will the woman probably do today?A. Get more food and drinks.B. Make a thorough cleaningsC. Ask her friends to come over.4. When will the speakers probably go shopping?A. On Monday.B. On Thursday.C. On Friday.5. Why was Andes at the hospital?A. To take a medical test.B. To care for his mother.C. To pay a visit to his friend.第二节（共15小题；每小题1.5分，满分22.5分）听下面5段对话或独白。

每段对话或独白后有2至4个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。

听每段对话或独白前，你将有5秒钟的时间阅读各个小题；听完后，各小题将给出5秒钟的作答时间。

每段对话或独白读两遍。

. 听下面一段对话，回答第6和第7题。

6. How many movies in that series has the man watched?A. Six.B. Seven.C. Eight.7. When will the speakers watch the movie?A. At 6:00 pm.B. At 6:15 pm.C. At 8:20 pm.听下面一段对话，回答第8和第9题。

8. Who works as an editor for The Reader’s Digest?A. Jenny.B. Tony.C. Henry.9. What can David teach the woman?A. How to write the details of a story.B. How to deal with numerous topics.C. How to deal with people she meets.听下面一段对话，回答第10至第12题。

10. How long is the man allowed to stay here at the moment?A. Four months.B. Six months.C. One year.11. What is the level of the man’s spoken English?A. Elementary.B. Medium.C. Advanced.12. Why does the man ask the woman for help?A. To extend his permit.B. To arrange for a host family.C. To get ready for an interview.听下面一段对话，回答第13至第16题。

13. What was the weather like most time during the holiday?A. Cloudy.B. Sunny.C. Rainy.14. What was the man unsatisfied with about the hotel?A. The food.B. The waiters.C. The price.15. What did the woman complain about?A. The air conditioner.B. The service.C. The weather.16. Where did the speakers spend their holiday?A. In Asia.B. In Africa.C. In Europe.听下面一段独白，回答第17至第20题。

17. Where are most of the camping sites?A. In Italy.B. In Switzerland.C. In France.18. What can children do shortly after the sports activities?A. Have a drama course.B. Take part in model-making.C. Join in a poster-making competition.19. What can a regular customer get if they recommend the camping to friends?A. A luxury tent.B. A high-quality item.C. 10% off the next holiday.20. How are the tents different from other companies’ tents?A. They are equipped with a fridge.B. They are equipped with a mirror.C. They are equipped with a cooker.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，从毎题所给的A、B、C和D四个选项中，选出最佳选项。

AYellowstone Vacations Calendar & EventsPlan Your Day at YellowstoneWhen you visit Yellowstone National Park, just stepping outside presents an entire world of things to do. But if you’re looking for something more structured, we offer our own brand of fun and adventure. Check below for upcoming events and start planningyour day-to-day stay here at Yellowstone.Super Party at Holiday Inn West Yellowstone February 4Will you be in West Yellowstone on Sunday, February 4? Well, great news! We have no intention of missing the biggest game of the year, and we will be celebrating in true “big game” fashion at the Holiday Inn West Yellowstone. Join us as we broadcast the big game on our BIG screen in the conference space, and come and cheer for the team of your choice! A range of food and beverage specials will be available, including buckets of beer, Buffalo chicken clip, and of course wings. We hope to see you here on February 4, 2018!Kids’N’Snow Weekend March 3-4Don’ miss a special weekend in West Yellowstone filled with fun activities for kids (and families) both outdoors and inside. Join the fun at the West Yellowstone Ice Rink,(溜冰场). Warm up with hot beverages, toast, some marshmallows, sled on the sledding hill. Bring your own sled for the Kid’s Sledding Hill. Or, try out West Yellowstone’s ice skating rin k. A limited number of ice skates will be available at no charge (come early for the best selection). Relax with music and conversation. It’s old-fashioned family fun for everyone of every age. All Yellowstone visitors are welcome!For full details and schedule information, please visit the officialKids’N’Snow website.Yellowstone Snowmobile ToursCall 800-426-7669 today to make a reservation.Looking for something a little more hands on? Take one of our Yellowstone Snowmobile Tours and let our local guides take you through the impressive winter wonderland!• Custom and daily tours available.• Snowmobile and Tour： $219 which does not include tax of 3%, lunch, clothing, park entrance fees.•Yellowstone National Park and Rendezvous Snowmobile Rentals, require a valid drivers license to drive a snowmobile.For more information on rentals, please see our Snowmobile Rentals page and Frequently Asked Questions page.21. Which activity requires booking in advance?A. The Super Party.B. Kids’N’Snow Weekend.C. The Snowmobile tours.D. Sledding on the Kid’s Sledding Hi ll.22. What’s the special about Kids’N’Snow Weekend?A. It’s on the weekend.B. Various foods are offered.C. It's designed for children.D. Some ice skater are free.23. What is needed to go on the snowmobile tours?A. A hot drink.B. A children’s sled.C. A valid driver’s license.D. An information brochure.BMy arms shook. The bow was almost as tall as I was, and it was equipped with an arrow, ready to be shot. Never had a more ill-suited person handled a weapon. But my editor had sent me on a mission: to find my inner Katniss Ever deen at one of Beijing's indoor archery clubs.The brilliant archer Everdeen is the lead character in The Hunger Games movies, the final of which was just released in cinemas. Her arrows can hit almost anything: sword-swinging enemies, fierce animals, even aircraft some-how. Me? I can't throw a paper ball into a trashcan with any precision. And I was warned that archery would require a great deal of upper body strength, though I hadn’t seen the inside of a gym in years.News outlets like the New York Times and NPR have reported an increase of interest in archery, thanks to movies like The Hunger Games, Brave and The Avengers. Archery clubs have showed up in many major cities. In Jian Club, an archery-themed bar, we paid 120 yuan for an hour’s worth of target practice and prepared our bows and arrows.We were told to stand sideways, with one shoulder facing the bull’s eye. Your weaker arm would hold the bow, while the other would pull the bowstring back untilthe arrow was right next to your face. Then it was meters away.Well, sort of. Instead of sending the arrows whistling through the air, my first few simply dropped onto the ground.The failure was a good reminder that archery is a demanding, Olympic-level sport. It worked muscles in my back and arms that I just didn’t have yet. An hour came and went, and I found myself leaving with a couple pierced (刺穿的)bull’s eyes and sore shoulders. Was I ready to shoot down aircraft with a swift arrow? Not quite. But I was definitely ready for a return trip.24. Why did the author visit an archery club?A. Because of working as a photographer.B. Because of being a fan of The Hunger Games.C. Because of being given a task by the editor.D. Because of wanting to try a new exercise form.25. What best describes the author's trip to the archery club?A. Boring.B. Fascinating.C. Fruitless.D. Risky.26. What can we learn about archery?A. It is not an Olympic event.B. It is a sport practicedsingle-handed.C. It takes little effort to be good at it.D. It has gained more popularity recently.27. What’s the purpose of the text?A. To record an unforgettable experience.B. To discuss several hot films.C. To instruct readers to practice archery.D. To introduce a gym in Beijing.CKiller whales i n Alaska’s Bering Sea have figured out an easy way to get fed. Instead of seeking out the fish them-selves, the clever whales chase down fishing boats and steal the entire catch of the day, as much as 20,000 to 30,000 pounds.Killer whale “thieves” are no t a new phenomenon. Japanese fishermen have reported being followed by killerWhales since the 1950s. However, the increasing frequency of whale fish theft in the Bering Sea's continental shelf is now threatening the livelihood of fishermen.Paul Clampitt, a local fisherman, says his crew tried to keep the whales away with loud sounds. Though that worked for a short time, the whales now consider the noise “ a dinner bell”. Jay Herbert tried using sonar to keep the whales away. He also met with little success. According lo the experienced fisherman, the smart whales deliberately seek out longliners (延绳钓渔船）, and, all the first opportunity presented to them, steal the fish, leaving behind justthe lips of the fish caught!NOAA Fisheries biologist John Moran is not surprised at the whales’ thieving skill. The expert says whales are skilled hunters who can distinguish the sounds of different boats and even recognize the sounds of the operating system that places the fishing equipment into the ocean. The expert jokes, “ Grabbing a fish off a line is nothing.” Since they are social animals, it is easy for whales to pass their skills on to others.Killer whales are not the only whale species that have learned to steal from humans. In the Gulf of Alaska, sperm whales also conduct similar thefts. Longline fishermen off Washington, Chile, Australia, Hawaii, and many other countries have reported similar incidents. There is, unfortunately, no easy fix to this problem. One of the possiblesolutions is using pot traps similar to the ones used to catch crabs. However, the cost of switching from longline to pot fishing is too high, especially for small-scale fisheries. There is also no guarantee that the catch will be safe from the intelligent whales which, many fear, will eventually figure out how to open the pots!28. What concerns fishermen in Alaska?A. The killer whales eating their fish.B. The decrease of numbers of whales.C. The killer whales chasing their boats.D. The high cost of operating fishing boats.29. What may be the means to protect fishermen’s catch at present?A. Loud sounds.B. Pot traps.C. Sonar.D. Dinner bells.30. What can we know from the text?A. Whales can learn from each other.B. Whales’ thieving skills surprise experts.C. Whales are able to communicate with fishermen.D. Killer whales are the most intelligent whale species31. What can be the best title for the text?A. Fishermen Facing DangerB. Whales Teasing FishermenC. Thieves Stealing from FishermenD. Whales Living All over the WorldDIt’s a sadness shared by many business start-ups: why did my company fail, while so many others seem to be profiting from the “golden age of entrepreneurship (创业精神）”？Some people argue that opportunities and good fortune are the secrets to success. But Innovation Works CEO Kaifu Lee believes that entrepreneurs need to have certain qualities to help them face the difficulties of starting a business. At a recent LinkedIn conference, Lee mentioned some of these qualities.“Even though we’re now in a golden period for innovation and start-ups, not everyone is meant to be an entrepre- neur. Entrepreneurs share the same qualities — they are confident, communicative and focused. They don’t fear losin g, and they are good at learning,”he said.Lee explained that he often meets young people who are irresolute about setting up a business. “ If that’s the case for you then don’t do so,” he said at the conference. The bottom line, he said, is that entrepreneurs should be determined and passionate.passion is vital to entrepreneurs since it typically relates to self-motivation, according to Li Jun, 26, founder of Wuhan Lushenglin Plant Wall Co Ltd. “Entrepreneurs often need to work around the clock. It’s easier for people to put u p with the difficult schedule if they’re passionate about what they’re doing,” he said.Entrepreneurs are also generally thought of as risk-takers. But Yu Xiuhong,general secretary of the Bright China foundation, warns that young entrepreneurs should not take too many risks. “Successful entrepreneurs rarely take risks blindly or jump at opportunities others avoid. Before launching a business, it's advisable to do market research, evaluate yourself and your opponents,” she said.Also she advises that young people thoroughly calculate their expenses in advance. Take Li Dongjin as an example, 35-year-old long-term entrepreneur disappeared a week ago after his O2O car washing company failed disastrously. He had gotten an initial investment of 5 million yuan but wasted it all on allowance and publicity.32. Which of the following is not the quality of an entrepreneur according to Kaifu Lee?A. Confidence.B. Determination.C. Leadership skill.D. Learning ability.33. What did Li Jun say about entrepreneurs?A. They can’t be motivated without enthusiasm.B. They shouldn't complain about their tight .schedule.C. They should have an urge to improve themselves.D. They may suffer health problems due to heavy work loads.34. What has the closest meaning with t he underlined word “irresolute” in Paragraph 4?A. Delighted.B. Hesitant.C. Anxious.D. Sure.35. What can we infer from the last two paragraphs?A. Yu Xiuhong regrets jumping at opportunities before.B. Li Dongjin is a failure for lack of adventurous spirit.C. Li Dongjin shouldn’t have started a car washing company.D.Yu Xiuhong believes it a must to think twice before taking risks.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。

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2018届高三英语上学期第二次月考试题(3)

2018届高三英语上学期第二次月考试题(3)

2017--2018高三上学期第二次月考英语试卷时间 100分钟分数 120分第一部分听力（共两节，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A、B、C和D四个选项中，选出最佳选项。

AVictoria Volkssport Phoenix Festival 2017The Volkssport Clubs of South Vancouver Island will host the fifth Victoria Volkssport Phoenix Festival on Oct. 20-22,2017.You're welcome!Click here to register now!●Location（位置）: The festival will take place at the Victoria Greek Community Centre at 4648 Elk Lake Drive which is near Beaver Lake,the Howard Johnson Hotel and many bus routes.●Walks: The festival site will open at 10 am on Friday morning,October 20.We'll again offer walks from 5 km to 42 km.There'll be walks ranging from 5 km to12 km available all weekend in four areas known as Broadmead Trails,Lake Trails,Ocean View Trails and Saanich Trails.In addition,on Saturday,walks of 21 km,32 km and 42 km will be available at Ocean View Trails.On Sunday,a 21 km walk will be available at Saanich Trails.●Swim: New this year.We'll offer a swim event on Saturday and Sunday mornings at Saanich Commonwealth Place which is right next door to the Greek Community Centre.●Transportation: If you're driving,there are several ferries to the island and there is enough parking at the centre.If not driving,many ferries and airlines can bring you to the island and several bus routes bring riders within a few steps of the centre.●Food: Good food has been a key part of past Phoenix Festivals and this tradition will continue in 2017. During the festival,the Greek Community Centre will operate a snack bar with Greek and Italian foods as well as a cash bar.Early morning registration will have the famous Phoenix Festival home-baked food.Friday evening's Meet and Greet will feature（使有特色）a variety of light snacks.Finally,Saturday's feast will be a real one,but the dinner isnow SOLD OUT.21.Where can the text be seen?A.In a magazine.B.In the newspaper.C.On the Internet.D.In a poster.22.What event can you choose on October 22nd?A.A 21 km walk at Lake Trails.B.A 21 km walk at Saanich Trails.C.A 32 km walk at Ocean View Trails.D.A 42 km walk at Broadmead Trails.23.What can we learn about Phoenix Festival from the text?A.No swimming was offered in the past.B.It is held every other year.C.All walks are intended for adult participants.D.The foods provided are mainly Greek ones.BSometimes,the love of science runs through the generations of a family.This is especially the case for Aaron Yeiser,who won the award at the 2017 Regeneron Science Talent Search.His grandparents and father work in computer science,technology,and chemical engineering."I was encouraged to go after a STEM career because of Papa,"Aaron said.His grandfather Frank Sandy was a Science Talent Search finalist in the 1954 competition."Aaron's been doing very well in science and math,so I won't say I was surprised,"Frank saidof Aaron becoming a Regeneron STS finalist."I was delighted by not only that,but his getting early-action admission to MIT, which happened just a couple of days after my wife died.She would have just been so thrilled.""I've been very impressed by the things he's built,"Frank said of Aaron's interest in drones （无人驾驶飞机）and other STEM activities.Aaron has always been interested in math.Differential equations（微分方程) came along when he applied to the MIT Primes USA program,a mathematical research program for high school students."I've been interested in science all my life,"Frank said."Even in elementary school I played with electrical wire and had my bedroom all wired up with batteries and light switches attached to my bed.It was a lot of fun."Frank worked at Raytheon,creating computer models of various devices（设备）.He became more interested in the programming rather than the physics of how the devices worked.Aaron encourages others who are interested in STEM to look for any chance to participate in research."And don't skip English class,because good communication is just as important as your actual research,"he said.24.What is known about Aaron Yeiser?A.His family members are all scientists.B.His grandparents and parents all inspired him.C.The three generations of his family all love science.D.His grandparents and parents are all STS finalists.25.What does the underlined word "that" in Paragraph 3 refer to?A.Aaron's becoming a Regeneron STS finalist.B.Aaron's interest in science and math.C.Aaron's winning admission to MIT.D.Aaron's love of STEM activities.26.Why did Frank mention what he did in elementary school?A.To prove his creativity.B.To show his interest in science.C.To show his difference from others.D.To stress his excellence in learning.27.What is the best title for the text?A.Love Science,Just like AaronB.Aaron,a Talent in Scientific ResearchC.Aaron,an Example to Young GenerationsD.Pass a Love of Science Through GenerationsC“BANG!” the door caused a reverberation (回声). It was just standing there, with father standing on one side, and me on the other side.We were both in great anger. “Never set foot in this house again!”father stormed. With tears welling up in my eyes, I rushed out of the flat and ran along the street.The street lights were shining, causing rather sad feelings. I wandered aimlessly.A young father who held a child in his arms walked past me. I felt as if I saw my childhood from another space: happy and carefree.But now … I don’t know whether it is because I have grown up or because dad is getting old. We differ in our ways of thinking. We are just like two people coming from two different worlds. It feels like there is an iron door between us that can never be opened.I wandered the streets, without a destination in mind. My heart was frozen on this hot summer night. As I walked on, there were fewer and fewer people on the streets, until I had only the street lights to keep me company. When I finally reached the high-rise apartment block in which I lived, I saw that the light was still on.I thought to myself: “Is father waiting for me, or is he still angry with me”In fact, it was nothing. Perhaps, dad was throwing away some of his old stamps. Perhaps he thought they were useless. I never had the courage to tell him that I liked collecting stamps. All the lights were off except father’s.Dad was always like this. Maybe he didn’t know how to express himself. After shouting at me, he never showed any mercy or any moments of regret.This was how he always was. He has been a leader for so long that telling everyone else what to do has become his second nature.The light was still on. “Am I wrong” I whispered, maybe… With the key in my hand, I was as nervous as I had ever been. At last, I decided to open the door. As soon as I opened the door, tears ran down my cheeks. I suddenly realized that the iron door that I had imagined between us did not exist at all. Love----it’s second to none.28. Which of the following can replace the underlined part in Paragraph 2?A. shouted in relief.B. Burst into anger.C. Burst our crying.D. Jumped in sadness.29. What does the iron door between “us” actually refer to?A. Their misunderstandings.B. Their different characters.C. Their ways of thinking.D. The father’s rudeness.30. In the author’s eyes which of the following can be used to describe his father?A. Inconsiderate.B. Indifferent.C. Stubborn.D. Uninterested.31. What actually contributed to the opening of the iron door in the end?A. The son’s giving in to his father.B. The regret undertaken by the son.C. The affection between the father and the son.D. The light that was on until late in the night.DAlmost all children want to become a good student.But what makes a good student?Usually,a good student shows many characteristics.For example,a good student possesses knowledge that is not just about books but also about present affairs and others.This allows him/her to draw from whatever he/she possesses and use it in his/her studies.A good student can plan and organize not only his/her things but his/her thoughts as well.Moreover,he/she's also someone who is sincere and does his/her work well and smartly.Most importantly,a good student has strong academic resilience（韧性）.Namely,he/she's willing to stick to academic tasks even when problems arise.Let's say that 10-year-old Roger and Tory have nearly the same math skills. Roger,however,has higher academic resilience.So,when their teacher introduces a challenging new type of math problem,Roger is more likely than Tory to fight to master the new math skill due to his character.Being academically resilient is an important key in academic ing the previous example,Roger's success in the math skill isn't based on some natural "intelligence" or "talent"with math,but occurs because he has greater fortitude to learn the skill.So,when it comes to being a good student,one of the things you must do is develop your academic resilience.To achieve this,you should learn to ask for help.Actually,an important part of learning includes getting answers wrong. This offers a chance to clarify understanding.So,if something doesn't make sense to you,connect with your teacher, find a study partner in class or borrow notes from someone doing well in the class.Besides,developing a plan for academic and personal success is important as well.32.What plays the most significant role in making a good student?A.Possessing rich knowledge.B.Knowing how to organize thoughts.C.Doing work well and smartly.D.Owning strong academic resilience.33.How does the text explain academic resilience?A.By telling a story.B.By giving an example.C.By listing some facts.D.By analyzing causes.34.What does the underlined word "fortitude" in Paragraph 3 most probably mean?A.Will.B.Access.C.Instruction.D.Decision.35.What can we infer from the last paragraph?A.A good student doesn't take notes in class.B.A good student doesn't need to ask for help.C.A good student should learn to develop a study schedule.D.Getting answers wrong is a must in making a good student.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。

云南省昆明市2018届高三英语上学期第二次月考试题

云南省昆明市2018届高三英语上学期第二次月考试题

云南省昆明市2018届高三英语上学期第二次月考试题注意事项．1．答题前填写好自己的姓名、班级、考号等信息2．请将答案正确填写在答题卡上I卷（选择题）第一部分听力（共两节满分30分，每小题1.5分）第一节（共5小题；每题1.5分，满分7.5分）下面五段对话。

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.Who is a great musician?A.Lily.B.Mike.C.Lisa.2.Why was the man unable to answer the phone?A.He didn’t hear the ringing.B.His phone wasn’t working.C.It was too noisy at the time.3.What is the woman unsatisfied with the hotel?A.Its manager.B.Its bathroom.C.Its dining hall.4.What does the woman decide to do tomorrow morning?A.Leave early for the airport.B.Check the flight sche dule.C.Listen to the weather forecast.5.How did the singer become famous?A.He usde to perform a lot on TVB.He used to sing at the subway station.C.He used the Internet to draw people’s attention第二节（共15小题；每题1.5分，满分22.5分）听下面五段对话或独白。

云南省保山市2018届高三普通高中毕业生第二次市级统测理综物理试题 含答案

云南省保山市2018届高三普通高中毕业生第二次市级统测理综物理试题 含答案

二、选择题：本题共8小题，每小题6分。

在每小题给出的四个选项中，第14～18题只有一项符合题目要求，第19～21题有多项符合题目要求。

全部选对的得6分，选对但不全的得3分，有选错或不选的得0分。

14.下列说法正确的是A.汤姆孙发现了中子，被称为“中子之父”B.玻尔理论指出原子可以处于连续的能量状态中C.普朗克的α粒子散射实验，奠定了原子的核式结构模型D.康普顿研究石墨对X 射线的散射，证实了光子有动量，进一步揭示了光的粒子性15.如图2所示，一个质量为m 的物体放在倾角为α的光滑斜面上，现对斜面施加一水平向左的恒力F ，使物体与斜面一起以加速度a 水平向左做匀加速直线运动。

已知重力加速度为g ，则斜面对物体的支持力为A.cos mg αB.cos mg αC.sin ma αD.sin F α16.如图3所示，两个带正电的粒子P 、Q (重力不计)以相同的速度v 垂直匀强磁场方向射入等腰直角三角形区域，其中粒子P 从A 点沿AB 边射入磁场，粒子Q 从AC 边的中点D 射入磁场。

若两粒子都从C 点离开磁场，则A. P 、Q 两粒子在磁场中运动的轨迹半径之比为3:1B. P 、Q 两粒子在磁场中运动的时间之比为1:1C. P 、Q 两粒子的比荷之比为1:2D. P 、Q 两粒子的比荷之比为2:117.2017年底，中国科学家在《自然》杂志上发表了中国暗物质粒子探测卫星“悟空”的首批探测成果，获得了世界上最精确的高能电子宇宙射线能谱，有可能为暗物质的存在提供新的证据。

已知“悟空”在高度约为500km 的圆轨道上做匀速圆周运动，经过时间t （小于运行周期），运动的弧长为s ，卫星与地球中心连线扫过的角度为θ（弧度），引力常量为G 。

则下列说法正确的是A.卫星的轨道半径为t θB.卫星的周期为2t πθC.卫星的线速度为2s t πD.地球的质量为22s G t θ 18.如图4所示，A 、B 为竖直墙面上等高的两点，AO 、BO 为长度相等的两根轻绳，AOB 在同一水平面内，初始时90AOB ∠<︒，CO 为一根轻杆，可绕C 点在空间无摩擦转动，转轴C 在AB 中点D 的正下方，在O 点处悬挂一个质量为m 的物体，整个系统处于平衡状态。

【全国市级联考word】云南省保山市2018届普通高中毕业生市级统测试卷---理科数学(解析版)

【全国市级联考word】云南省保山市2018届普通高中毕业生市级统测试卷---理科数学(解析版)

保山市2018届普通高中毕业生市级统测理科数学一、选择题：本大题共12个小题,每小题5分,共60分.在每小题给出的四个选项中，只有一项是符合题目要求的.1. 设集合，集合，则( )A. B. C. D.【答案】C【解析】对于集合B，，故，所以.2. 若复数满足，则复数的虚部为( )A. B. C. D.【答案】B【解析】依题意，故虚部为.3. 若的展开式中各项系数的和为32，则该展开式的常数项为( )A. 10B. 6C. 5D. 4【答案】A【解析】令，得，故常数项为.4. 是两个不同的平面，是两条不同的直线，有命题，，，则；命题，，那么与所成的角和与所成的角相等，给出下列结论：①命题“”是真命题；②命题“”是假命题③命题“”是真命题；④命题“”是假命题其中正确的结论是( )A. ②③B. ②④C. ③④D. ①②③【答案】A【解析】如下图可知，命题为假命题；根据线面角的定义和公里四平行公理可知，命题为真命题.故为假命题，为假命题，为真命题，为真命题.5. 已知平面向量，，向量与垂直，则向量的模长为( )A. B. C. D.【答案】D 【解析】依题意，解得，故模.6. 执行如图所示的程序框图，若输入的，，则输出的的值为( )A. 7B. 6C. 5D. 4 【答案】D 【解析】，判断是，，判断是，，判断是，，判断否，输出......................7. 正项等比数列满足，，则( )A. 26B. 52C. 78D. 104 【答案】C【解析】依题意有，解得.故.8. 《九章算术》是我国古代内容极为丰富的数学名著，书中有如下问题：“一楔体，下广三丈，袤四丈，上袤二丈，无广，高一丈，问积几何？”“术曰：倍下袤，上袤从之，以广乘之，又以高乘之，六而一.”(译文：算法：下底长乘以2，再加上上棱长，它们之和用下底宽乘，再乘以高，除以6).现有一楔体，其三视图如图所示，网格纸上小正方形的边长为1，则该楔体的体积为( )A. 5B. 10C.D.【答案】B【解析】根据译文算法，体积为.9. 已知函数的部分图象如图所示，则下面结论错误的是( )A. 函数的最小正周期为B. 函数的图象可由的图象向左平移个单位得到C. 函数的图象关于直线对称D. 函数在区间上单调递增【答案】C【解析】根据题目所给图像上两个零点的坐标，补全函数图像如下图所示，由图像显然可知是函数的零点，不是对称轴，故选项错误.10. 已知数列的前项和为，，，则为( )A. 50B. 55C. 100D. 110【答案】D【解析】依题意，化简得，故.A. B. C. D.11. 双曲线，过虚轴端点且平行轴的直线交于两点，为双曲线的一个焦点，且有，则该双曲线的离心率为( )A. B. C. D.【答案】A【解析】令代入双曲线方程，解得，不妨设，依题意有，即，化简得.【点睛】本题主要考查直线与圆锥曲线位置关系，考查垂直关系的转化方法，考查化归与转化的数学思想方法.题目中首先叙述了一条直线和双曲线相交与两点，所以我们根据题意，先求出这两个点的坐标，然后利用两个向量垂直，数量积为零建立方程，将方程化为离心率的形式即可求得离心率.12. 若实数满足方程，实数满足方程，则函数的极值之和为( )A. B. C. D. 4【答案】D【解析】依题意，是交点的横坐标，是交点的横坐标，互为反函数，图像关于对称，由解得，故.由于为奇函数，极值点关于原点对称.当时，，令，解得，极值为，当时，同理求得极值为，故两个极值之和为.【点睛】本题主要考查指数函数和对数函数互为反函数，考查函数导数与极值问题呢，考查数形结合的思想方法，考查函数零点问题的处理方法.首先是两个数是两个方程的根，先转化为一条直线与两个函数的交点，根据反函数图像的对称性，可求得对称中心为，由此求得的值.再利用导数的知识求得两个极值并相加.二、填空题（每题5分，满分20分，将答案填在答题纸上）13. 满足的整数点的个数为________.【答案】4【解析】画出可行域如下图所示，由图可知，整数点有共个.14. 已知圆与直线有公共点，则实数的取值范围是______.【答案】【解析】依题意知圆心为，半径为，圆心到直线的距离，解得.15. 记曲线与直线，和轴围成的区别为，现向平面区域【答案】【解析】，，故概率为.【点睛】本题主要考点有两个，一个是定积分的计算，另一个是几何概型的计算.在利用定积分计算面积的过程中，首先要画出函数的图像，求出交点的坐标，确定好被积分的区间，要注意是上面函数减去下面函数.求出面积后利用几何概型求出面积比即可求得概率的值.16. 已知函数，函数在区间上零点的个数是________.【答案】3【解析】依题意令，，即与在上交点个数问题.由于在定义域的每个区间上为增函数，而对，其导函数也为增函数，画出它们的图像如下图所示，由图可知，交点有三个，故填.【点睛】本题主要考查函数的图像与零点问题.首先求解出的表达式，并令其等于零，然后进一步变成两个函数的交点问题来研究.本题比较复杂在的图像与性质.先考虑其定义域为，在其定义域的每个区间上，根据复合函数的单调性可知函数是单调递增的，而另一部分，利用导数可判断出也是递增函数，画出两个函数的草图，即可知图像交点有个.三、解答题（本大题共6小题，共70分.解答应写出文字说明、证明过程或演算步骤.）17. 在中，有.(1)求角的值；(2)若，的面积为，求边长.【答案】(1) (2) ，【解析】【试题分析】（1）根据三角形内角和定理和二倍角公式，将题目所给等式化为，求出的值，进而求得角的值.（2）先由求出的值，利用三角形的面积公式求得，再由正弦定理建立另一个方程，联立方程组求得的值.【试题解析】(1)∵，∴，∴，∴(舍)，.又∵，∴.(2)由于，∴，，∴①，由正弦定理，得，∴，∴②，由①②得，.18. 为弘扬“中华优秀传统文化”，某中学在校内对全体学生进行了一次相关测试，规定分数大于等于80分为优秀，为了解学生的测试情况，现从近2000名学生中随机抽取100名学生进行分析，按成绩分组，得到如下的频率分布表：（1）在图中作出这些数据的频率分布直方图；（2）估计这次测试的平均分；（3）将频率视为概率，从该中学中任意选取3名学生，表示这3名学生成绩优秀的人数，求的分布列和数学期望.【答案】(1)见解析(2)74.5(3)【解析】【试题分析】（1）先计算出每组的频率，计算出频率/组距，由此可画出频率分布直方图.（2）用每组的中点作为代表，用中点值成立频率然后相加，可估计平均数.（3）相当于次独立重复实验，利用二项分布的知识可求得分布列与数学期望.【试题解析】(1)由题意可知分布在，，，，内的频率为，，，，，作频率分布直方图如图所示.(2).(3)记事件“随机选取一名学生的成绩为优秀”为事件，则，易知，则，，，，的分布列为.19. 如图，在四棱椎中，底面为菱形，为的中点.(1)求证：平面；(2)若底面，，，求平面与平面所成锐二面角的正弦值.【答案】(1)见解析(2)【解析】【试题分析】（1）连接交于点，连接，根据三角形的中位线和线面平行的判定定理可证得平面.（2）以为坐标原点建立空间直角坐标系，分别计算两个平面的法向量，并利用向量夹角公式，计算得二面角的余弦值，然后进一步求得其正弦值.【试题解析】(1)证明：如图，连接交于点，连接，由底面为菱形，可知点为的中点，又∵为中点，∴为的中位线，∴.又∵平面，平面，∴平面.(2)解：如图，过点在底面内作，交于点，设，∵底面，∴分别以所在直线为轴，轴，轴，建立空间直角坐标系，则，，，，由题意得，且，得，∴点坐标为，，∴，.设平面的法向量为，∴，令，则，.∴.取平面的法向量为，，∴平面与平面的夹角正弦值为.20. 已知椭圆的离心率为，右焦点是抛物线的焦点，抛物线过点，过点的直线交椭圆于两点.(1)求椭圆的方程；(2)记椭圆左、右顶点为，求的取值范围.【答案】(1) (2)【解析】【试题分析】（1）先根据抛物线所过点求出抛物线的方程，并求出抛物线的焦点坐标.由此得到椭圆的值，并根据离心率列方程可求得椭圆的方程.（2）由（1）求得两点的坐标.当直线斜率不存在时，可知.当直线的斜率存在时，设出直线的方程，联立直线方程和椭圆方程，化简写出韦达定理，代入化简后利用基本不等式求取值范围.【试题解析】(1)∵抛物线过点，∴有，得，∴抛物线的焦点为，∴椭圆的半焦距为，又椭圆的离心率为，∴，，∴椭圆的方程为.(2)当直线的斜率不存在时，直线，此时，；当直线的斜率存在时，设直线，由，得，易知，设，，则，，，∴，∴，∵，且.∴，当且仅当时等号成立，∴的取值范围是.【点睛】本题主要考查抛物线的方程的求法，考查椭圆方程的求法，考查直线与圆锥曲线位置关系和基本不等式求最值的方法.由于抛物线方程只含有一个参数，故只需要一个条件就可以求解出来.直线与圆锥曲线位置关系，设直线方程时，首先要注意直线斜率不存在的情况.21. 已知函数.(1)若曲线在点处的切线为，求实数的值；(2)讨论函数的单调性；(3)若函数有两个零点，求证：.【答案】(1) (2) 当时，函数在上单调递增.当时，函数在上单调递减，在上单调递增（3）见解析【解析】【试题分析】（1）依题意可知切点为，斜率为，即，由此求得的值.（2）先求得函数的导数为，对分类讨论，得到函数的单调区间.（3）由（2）知，将两个零点代入函数表达式，设，计算的表达式，通过导数计算的表达式的最小值为，由此得证.【试题解析】(1)由题意可知，且，∴，∴.(2)∵，，∴当时，恒成立，在上单调递增，当时，由，得，，，，，在上单调递减，在上单调递增，∴当时，函数在上单调递增.当时，函数在上单调递减，在上单调递增.（3）由(2)可知，，，不妨设，又有，，∴，设，则，，∴，∴，令，则，所以函数在上单调递增，所以，所以有.【点睛】本题是导数知识综合性很强的题目，第一问考查导数与切线有关的问题，解决与切线有关的问题的主要方法是利用切点和斜率列方程组，由此求得参数的值.第二问考查含有参数的函数单调性讨论的问题.第三问要证明两个零点的和大于，主要方法是构造函数，利用函数的最值里解决.22. 在直角坐标系中，直线的参数方程为(为参数)，以原点为极点，轴正半轴为极轴建立极坐标系，曲线的极坐标方程为.(1)求直线的普通方程与曲线的直角坐标方程；(2)设直线与曲线交于两点，若点的坐标为，求的值.【答案】(1) ， (2)【解析】【试题分析】（1）对于直线的参数方程，利用加减消元法可消掉参数，得到普通方程.对于曲线的极坐标方程，两边乘以即可求得其直角坐标方程.（2）将直线的参数方程代入圆的直角坐标方程，利用韦达定理和弦长公式可求得的值.【试题解析】(1)直线的普通方程为，曲线的直角坐标方程为.(2)将代入，得，化简得，设对应的参数分别为，则.23. 已知函数.(1)求不等式的解集；(2)设，若，恒成立，求的取值范围.【答案】(1) (2)【解析】【试题分析】（1）利用零点分段法，去绝对值符号，求出每一段的解然后取并集.（2）将原不等式等价变形为，利用绝对值不等式求得的最小值为，然后解一元二次不等式可求得的取值范围.【试题解析】(1)等价于，当时，，∴无解，当时，，解得，∴，当时，，∴，故不等式的解集为.(2)，恒成立，等价于，又，故，解得.。