【4月武威六中二模英语】甘肃省武威第六中学2020届高三下学期第二次线上诊断考试英语试卷及答案解析
武威六中2020届高三第二次线上诊断考试英语试题（考试时间：100分钟试卷满分：120分）第一部分阅读理解（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。
AHolidaysHoliday NewsVacancies (空位) now and in the school holidays at a country hotel in Devon. This comfortable, friendly home-from-home lies near the beautiful quiet countryside, but just a drive away from the sea. The food is simple but good. Children and pets are welcome. Reduced prices for low season.The Snowdonia CentreThe Snowdonia Centre for young mountain climbers has a mountain climbing lesson. The beginners’ costs are ￡57 for a week, including food and rooms. Equipment is included except walking shoes, which can be hired at a low cost.You must be in good health and prepared to go through a period of body exercises. This could be the beginning of a lifetime of mountain climbing adventure.The World Sea Trip of a LifetimeOur World Sea Trip of 2020 will be unlike any holiday you have ever been on before. Instead of one hotel after another, with all its packing and unpacking, waiting and traveling, you just go to bed in one country and wake up in another.On board the ship, you will be well taken care of. Every meal will be first-class and every cabin like your home.During the trip, you can rest on deck（甲板）, enjoy yourself in the games rooms and in the evening dance to our musical team and watch our wonderful play.You will visit all the places most people only dream about — from Acapulco and Hawaii to Tokyo and Hong Kong.For a few thousand pounds, all you’ve ever hoped for can be yours.1. What can you do if you like to go on holidays with pets?A. Choose the holiday in Devon.B. Go to the Snowdonia Centre.C. Join the World Sea Trip of 2020.D. Visit Acapulco and Hawaii.2. What is special about the World Sea Trip of 2020?A. You can have free meals on deck every day.B. You can sleep on a ship and tour many places.C. You will have chances to watch and act in a play.D. You have to do your own packing and unpacking.3. At the Snowdonia Centre, the beginners’ costs of ￡57 do not cover ___________.A. foodB. roomsC. body exercisesD. walking shoesBOne morning more than thirty years ago, I entered the Track Kitchen, a restaurant where everyone from the humblest （卑微的）to the most powerful came for breakfast. I noticed an empty chair next to an elderly, unshaven man, who looked somewhat disheveled. He was wearing a worn-out hat and was alone. I asked if I might join him. He agreed quietly and I sat down to have my breakfast.We cautiously began a conversation and spoke about a wide range of things. We never introduced ourselves. I was concerned that he might have no money and not be able to afford something to eat. So as I rose to go back to the counter and buy a second cup of coffee, I asked,“May I get you something?”“A coffee would be nice.”Then I bought him a cup of coffee. We talked more, and he accepted another cup of coffee. Finally, I rose to leave, wished him well, and headed for the exit. At the door I met one of my friends. He asked,“How did you get to know Mr. Galbreath?”“Who?”“The man you were sitting with. He is chairman of the Board of Churchill Downs. ” I could hardly believe it. I was buying, offering a free breakfast, and feeling pity for one of the world’s richest and most powerful men!My few minutes with Mr. Galbreath changed my life. Now I try to treat everyone with respect, no matter who I think they are, and to meet another human being with kindness and sincerity.4. What does the underlined word “disheveled” mean?A. Unfriendly.B. Untidy.C. Gentle.D. Kind.5. The author bought coffee for the old man becauseA. he thought the old man was poorB. he wanted to start a conversationC. he intended to show his politenessD. he would like to thank the old man6. How did the author probably feel after he talked with his friend?A. Proud.B. Pitiful.C. Surprised.D. Regretful.7. What message is mainly expressed in the story?A. We should learn to be generous.B. It is honorable to help those in need.C. People in high positions are not like what we expect.D. We should avoid judging people by their appearances.CRubbish is a major kind of environmental pollution. Each person produces about two kilograms of rubbish in our homes a day. And this is only a small part of all the rubbish we produce. We also create waste in industry.Have you wondered what happens to the rubbish? Most of it is buried in landfills (垃圾填埋地) or burned. Less than 25% of our waste is recycled.A landfill is carefully designed and it is built into or on top of the ground. Rubbish buried in landfills is cut off from the surrounding environment (groundwater, air, rain, etc).One problem with landfills is that they cover a lot of land space. If they are not well-built, there isa high risk of polluting the land and water. Some people also say that landfills remove materials for ever. As a result, the materials that can be reused are wasted.Burning rubbish in factories is another way to cut out waste. Burning reduces 95% of the waste. And if poisonous materials are removed, and burning is completed at controlled temperatures, it is possible to do so without causing too much pollution. Some factories could even produce electricity from the burning process.Not all of the rubbish can be burned, so we have to separate it before we burn it. However, separation costs a lot of money. Another problem with burning rubbish is that what is left after burning is poisonous. How to safely deal with it is a continuing problem.Before the mid-20th century, landfills were the main way to deal with waste. In the late 20th century, other ways like recycling have been introduced to help reduce global pollution.Maybe in the near future, with combined efforts, scientists will find a better way to dispose rubbish and cut out waste, like recycling things. But anyway, mountains of rubbish from life every day is a huge burden for any country.8. What is the advantage of burying rubbish in landfills?A. Producing electricity.B. Reusing the materials buried in landfills.C. Reducing 95% of the waste.D. Cutting off rubbish from the surrounding environment.9. Paragraph 6 is mainly about _________.A. the separation of rubbishB. the problems with burning rubbishC. the safety of burning rubbishD. the cost of burning rubbish10. It can be inferred from the passage that _________.A. rubbish should be separated when it is burningB. landfills are too dangerous to be built too manyC. there’re advantages and disadvantages about burning rubbishD. developed countries are better at dealing with rubbish11. After the last paragraph, what is the author likely to talk about next?A. Pollution.B. Landfills.C. Recycling.D. Environment.DIt cannot be denied that we all want to succeed, whether it is in losing weight or learning the guitar. For those who have tried and failed, success seems difficult to understand. Why does one person succeed where another person fails? I have made a list of four habits to help set goals and achieve them.Identify your core valuesFinding your core values is in line with creating inner motivation. Sit and reflect on what you value most. Pick a handful of things and actually write them down. Remind yourself of your values every day, and reflect on whether you are honoring those values through your work.Pick a goal and focus on itChoose one goal to start something large enough that will give you a sense of accomplishment, while adjusting well to your core values. Focus is key here. The more focused you are on one goal, the higher chance you have of success.If you perform a great many tasks at a time, you might never complete your projects because they will take far too long.Set a deadline for successTo set a date or deadline for success is meaningful and necessary. Identify when you hope to achieve your goal. Keep it realistic, while not giving you too much time. By setting a time limit, you are making the process more real and planned.Stick to your goal.Failure can’t be avoided to some extent when you take risks, by its very definition, the desire to succeed means you are risking failure. Many people tend to give up far too early. Don’t fall into this trap! Remember your mindset （心态）earlier. Know it will happen. A failure is merely you working out the details, and learning what works and what doesn’t. Use failure. Treat it as a good thing, and march on!In your lifetime, you have many opportunities to succeed. While in the process you may encounter （遭遇）plenty of failures, but on condition that you stick to the four habits above, you will beabsolutely successful sooner or later.12. You would have a better chance to succeed if you _________.A. reflect on your goal moreB. are more concentrated on a goalC. are more eager to succeedD. try your best to avoid failure13. Which of the following statements is NOT true?A. People are all eager to succeed in life.B. Realizing core values can make inner motivation.C. You are bound to succeed if you follow the four habits.D. failure is sometimes not a bad thing.14. What does the underlined word “it” in the passage refer to?A. detail.B. Failure.C. Goal.D. Success.15. The best title for the passage could be _________.A. Four Habits to Help You SucceedB. Make the right decisionC. Failure is the mother of successD. Find the core values of success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。
甘肃省武威第六中学2022-2023学年高三上学期线上教学诊断考试英语试题
武威第六中学2023届高三年级线上教学诊断考试英语试卷命题人：张丽审题人：徐文花（考试时间：120分钟，满分：150分）第一部分阅读理解(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。
AThings to do in Cabo Corrientes，Jalisco，Mexico!◆Rhythms of the Night﹣Sunset Cruise（乘船游览）Duration：5hrsKick off the evening with a scenic cruise across Banderas Bay to Las s Caletas，once home to a Hollywood movie director John Huston，offers front﹣row sunset seats，and dinner tables just steps away from the water.The buffet﹣style menu offers a wide variety of choices.Watch the lively performance of ancient ceremonies and be lost in historical stories about Jalisco.You must be able to climb and go down stairs.◆Sayulita EscapeDuration：3hrsHop on a powerful UTV（utility task vehicle）to explore Sayulita，a nice beach town not far from Vallarta.Ride over muddy roads and a riverbed to reach the small community famous for its relaxing atmosphere.Soon after hitting the main road，your guide turns onto one of the dusty forest paths.When you are ready，a picnic lunch，an open bar，and a knowledgeable crew await your return to the ship.Wheelchair accessibility is available.◆Las Caletas Beach HideawayDuration：7hrsThe use of kayaks（独木舟）and stand﹣up paddleboards is all available，as well as a scenic nature walk and admission to Kids Adventure Park for the young ones.You can even swim out to an offshore platform to practice your diving skills.Wheelchair accessibility is not available.◆Street Food and Taco Tour in Puerto vallartaDuration：6hrs30minsEnjoy a feast of local flavors in our food and tacos﹣tasting tour.Discover Puerto Vallarta's best flavors to the locals'eye.Learn about the local culture and life，while you eat where the locals do with their beloved ones.Wheelchair accessibility is not available.1.What can tourists do on the tour Rhythms of the Night﹣Sunset Cruise？A.Enjoy free dinners.e across the movie director John Huston.C.Learn about the history of Jalisco.D.Watch the scenic sunrise.2.How does the tour Sayulita Escape differ from the other onesA.It includes a licensed guide.B.It is more friendly to the disabled.C.It offers various water event.D.It has adventurous routes.3.Which tour suits families with kids？s Caletas Beach Hideaway.B.Sayulita Escape.C.Rhythms of the Night﹣Sunset Cruise.D.Street Food and Taco Tour in Puerto Vallarta.BOnce,Buddha was walking from one town to another with some of his followers.This was in the initial days.While they were traveling,they happened to pass a lake.They stopped there and Buddha told one of his followers,“I am thirsty.Please get me some water from that lake there”.The follower walked up to the lake.When he reached it,he noticed that some people were washing clothes in the water and,right at that moment,a bullock cart started crossing the lake right at the edge of it.As a result, the water became very muddy,very dirty.The follower thought,“How can I give this muddy water to Buddha to drink?!”So he came back and told the Buddha,“The water there is very muddy.I don’t think it is fit to drink.”So,the Buddha said,let us take a little rest here by the tree.After about half an hour,again Buddha asked the same follower to go back to the lake and get him some water to drink.The follower obediently(顺从地) went back to the lake.This time he found that the lake had absolutely clear water in it.The mud had settled down and the water above it looked fit to be had.So he collected some water in a pot and brought it to the Buddha.The Buddha looked at the water,and then he looked up at the follower and said,“See,you let the water be and the mud settled down on its own.You got clear water.It didn’t require any effort”.Our mind is also like that.When it is disturbed,just let it be.Give it a little time and it will settle down on its own.You don’t have to put in any effort to calm it down.We can judge and best decisions of our life when we stay calm.第1页共4页4．Why did Buddha asked his follower to collect water?A．Because they were travelling.B．Because they were passing a river.C．Because Buddha was too tired to go on.D．Because Buddha wanted a drink.5．What does the underlined word“it”in the third paragraph refer to?A．The tree.B．The lake.C．The mud.D．The pot.6．What can you infer about the follower?A．He is reliable and thoughtful.B．He is humorous and intelligent.C．He is hesitant and dependent.D．He is picky and impatient.7．What is the best title for the text?A．Trial and Error.B．Sometimes Just Let it Be.C．Buddha and His Follower D．Efforts will Pay Off.CHave you ever noticed that some difficult situations tend to repeat themselves?Does it seem as if you married or dated the same kind of person several times in different bodies with different names?Have you run into the same type of boss over and over again?If you don't deal well with authority figures at home,then you will have an opportunity to deal with them out in the world.You may try desperately to avoid these repeated difficult situations,which seem to have become your set patterns,but they will eventually catch up with you.The only way you can free yourself of them is to shift your perspective on them seriously and persistently.To face the challenge means you need to bravely accept the fact that something within you keeps drawing you to the same kind of person or issue repeatedly in your life.This is no easy task,since it means you have to change,and to change is not always easy.Staying just as you certainly is comfortable in its familiarity,but does not help you advance spiritually.Rising to the challenge of identifying and releasing your patterns forces you to admit that the way you have been doing things isn't working.However,the good news is that by identifying and releasing your patterns,you actually learn how to change.In order to facilitate your process of change,you will need willingness and patience.When struggling to make a change,ask yourself,"How willing am I,really,to make this change?"If you truly want to change,you will make a commitment to the process of it.If you absolutely hate getting stuck in traffic,chances are that you need a little work in the area of patience.And,chances are,you will probably get stuck in more traffic jams than someone who has patience.It is not because the universe has a sense of humor. You just notice and care about the traffic more than someone who has patience.Remember,you just need willingness and a little patience.Once you master these,you will most likely find the challenge of identifying and releasing your patterns far less frightening.8．How can you get rid of repeated difficult situations in your life?A．By trying your best to avoid those disappointing situations.B．By taking a different attitude towards previous life.C．By gathering up the courage to change your identity.D．By changing your viewpoint on them with great determination.9．What's the author's attitude towards the idea of staying just as you are?A．Disapproving.B．Skeptical C．Supportive.D．Casual10.What does the underlined word"facilitate"in Paragraph3probably mean?A．promote B．postpone C．influence D．overlook11.What is the effect of mastering willingness and patience according to the passage?A．Guiding you to identify your old patterns.B．Making your changes become easier. C．Challenging you with difficult patterns.D．Arousing your inner desire to challenge yourself.DWhen making choices,people assume that they pick what they like.However,research suggests that we like something strictly because we have chosen it.In other words,we dislike things we don’t choose.And this phenomenon has existed since we were babies.In an experiment,US researchers brought several10to20-month-old babies into a lab and gave them two same bright and colorful soft blocks to play with.They set each block far apart,so the babies had to crawl to one or the other—a random choice.After the baby chose one of the toys,the researchers took it away and came back with a new option.The babies could then pick either the toy they didn’t play with before,or a brand-new toy.It turned out that the babies reliably chose to play with the new toy rather than the one they had not chosen.In follow-up experiments,when researchers instead helped choose which toy the baby would play with,the phenomenon disappeared.“As if they were saying,‘Hmm,I didn’t choose that object last time,because I guess I didn’t like it very much”said Lisa Feigenson,co-author of the study.This is a very important phenomenon in life,Feigenson noted.Adults will less like the thing they didn’t choose,even if they had no real preference in the first place.It looks like babies do just the same.It shows that the act of making choices changes how we feel about our options.The random choices might become our preferences.“They are really not choosing based on whether they are novel or what they prefer,”said Alex Silver,co-author of the study.This new finding explains why adults build unconscious preference when they make choices between the第2页共4页same things.Justifying(证明有道理)choice is somehow fundamental to the human experience.“I chose this,so I must like it.I didn’t choose this other thing,so it cannot be so good.Adults make these inferences unconsciously,”Feigenson said.Such tendency makes sense to us as we live in a consumer culture and must make so many choices every day,between everything from toothpaste brands to styles of jeans.Next,researchers will look at whether too many choices could be a problem for babies as they certainly are for adults.12．What is the purpose of the experiments?A．To test whether people choose what they like.B．To see why babies prefer new toys to old ones.C．To explain how babies and adults make choices differently.D．To study if too many choices could create problems for people.13．What can be learned from the experiments?A．Babies prefer bright and colorful toys.B．Babies’preference largely affects their choices.C．Babies prefer adults to help them make choices.D．Babies’previous random choices affect their preference.14．Why is the new finding important in life?A．It entirely changes our styles to choose.B．It helps us make wise decisions in a consumer culture.C．It promotes the relationship between adults and babies.D．It helps us understand our unconscious preference for choices.15．What can be the best title for the text?A．Babies like what they choose B．Random choices matterC．Too many choices puzzle the adults D．Preference affects the choice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。
甘肃省武威第六中学2020届高三英语下学期第三次诊断考试试题
甘肃省武威第六中学2020届高三英语下学期第三次诊断考试试题第I卷第一部分阅读理解（共两节，满分30分）第一节（共10小题；每小题2分，满分20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。
ADo you want to go out to eat with your kids? Here are some restaurants that are good for kids in downtown Los Angeles.Grand Ca féTel: (213) 356-4155Do you need a place that opens as early as your kids wake up? Then go to Grand Café. Families can order breakfast off the menu or enjoy the buffet(自助餐）. Because of the variety, buffets seem to be an easy option for families with picky eaters. There are many options for the different moods of all family members.Nickel DinerTel: (213) 623-8301Nickel Diner was listed in Los Angeles Magazines as one of “LA’s Best New Restaurants”. The space is small, but the menu is wonderfully large. The atmosphere is quiet and relaxed, which makes it easy to bring the kids. One of the most attractive things about Nickel Diner is its unique menu of breakfast foods.Lucky Strike BowlTel: (213) 542-4880There’s nothing like a good game of bowling to add some happiness to the family outing. Why not take the family to a place where you can bowl while eating? Try their homemade Belgium fries, the mini burgers, flatbread pizza, or crispy tacos. Downtown LA’s Lucky Strike Bowl will never make you and your kid s disappointed.KulaTel: (213) 290-9631Kula is an exciting sushi bar and is a big hit for little sushi eaters. Kula’s concept includes providing “a high standard of natural organic foods” and they use 100% organic rice. If your child is not a sushi eater, there are also many other options.1. Who would most probably go to eat at Grand Café?A. People who love organic foods.B. People who want to play while eating.C. People who love a quiet eating environment.D. People who want to serve themselves in a restaurant.2. Which of the following aspects of Kula most attractive to eaters?A. It has many other options.B. It offers very healthy foods.C. It allows kids to run around.D. It offers different kinds of rice.3. What is the purpose of the passage?A. To encourage people to go to Los Angeles.B. To compare some kid-friendlyrestaurants.C. To recommend some nice foods in the city.D. To recommend some kid-friendlyrestaurants.BWhen I first got to the dojo (柔道馆) at around 6, the first thing that I remember seeing was these groups of people, lined up to fight each other, which shook me. I really didn't want to come back. But I did. I stayed until my Blue Belt. After that, progressing was a little frightening. But my friends and instructors got me to keep coming.I was progressing well, but that took a turn as soon as I reached the Red Belt. My parents were switching jobs, and it was very difficult to match our schedules so that 1 could come to the dojo. During that year, 1 didn't come to the dojo as much. It was hard for my parents, as well as myself, to be able to fit it into our schedule as often.When I finally started coming regularly, it was bitter for me to see that all of my friends and peers were ahead. And that taught me a lesson: You should neverbe upset about yourself if other people are achieving something that you aren't. If anything, you should do the opposite for them. After that year, everything was back up to speed, and I entered Level 3. I could not believe how fast my training was going, and I was finally into the Brown Belt.Getting through the Brown Belt tests as a young student, and a girl, was very tough. And here, in one of the last stages before my First Degree Black Belt, I learned the biggest lesson - - I could do anything that I wanted to and I was capable of anything that I set my mind to. I just didn't think I could. But I proved myself wrong, and I was able to do it.Finally, getting my First Degree Black Belt is a dream that comes true, literally.I have been dreaming about these days for months on end, and it never loses the excitement that it gives me. And even after my ceremony, I think I will I look back on this day，and remember every second，every moment.4. How did the author feel when she first got to the dojo?A. Scared.B. Thrilled.C. Annoyed.D.Disappointed.5. What made the author unable to come to the dojo regularly?A. Her dislike of her instructors.B. Her parents' not supportingher.C. Her little progress in the training.D. Her parents' changes of jobs.6. The author thinks that when others did better than you, you should .A. be respectful to themB. be happy for themC. learn from them modestlyD. work harder and harder7. Which saying can conclude the biggest lesson the author learned?A. No pain, no gain.B. Well begun is half done.C. Nothing is impossible to a willing heart.D. All things are difficult before they are easy.COur dog Sandy is a golden retriever(寻回犬). Once we performed an experiment tosee how keen his nose was. There was one particular pile that must have had hundreds of sticks. We picked up one stick carved an X on it, walked away from the pile and then threw it back into the pile, not once but a dozen times into the pile. It was impossible for us to tell with any certainty which stick we had originally chosen. Each time he brought back that stick. It wasn't the shape or the size or the look of the stick that he used to pick it out from all the others. It was the smell we left on the stick. It is hard to imagine, but for dogs every living creature has its own distinctive smell.The noses of people have about 5 million cells that sense smell. Dogs' noses have anywhere from 125 to 300 million cells. Moreover, these cells are closer to the surface than cells in our noses, and more active. It has been estimated(估计) that dogs such as Sandy have noses that are a million times more sensitive than ours. Clothes that we haven't worn for week, and places we've only touched lightly indicate our presence to dogs.His ears are also remarkable. He can hear sounds that humans can't and at distances which are astonishing. It is over our head to know and understand that world. Yet we have the advantage of being able to imagine what his experience is like, though he probably doesn't think too much about how we see the world.The environment is the world that all living things share. Living creatures are born into the environment and are part of it. Yet there is no creature who perceives (感知到) all of what is and what happens. For a dog like Sandy a book isn't much different than a stick, whereas for us one stick is pretty much like every other stick. There is no one world experienced by all living creatures.8. Why did the author conduct the experiment?A. To train Sandy to pick out sticks.B. To show how fast Sandyfound sticks.C. To prove sensitivity of Sandy's nose.D. To teach Sandy to telldifferent smells9. What does the author intend to do in paragraph 2?A. Support the conclusion with numbers.B. Summarize the previousparagraph.C. Provide some advice for the readers.D. Introduce a new topic fordiscussion.10. What does the underlined idiom in paragraph 3 mean?A. Amazing.B. Difficult.C. Reasonable.D. Inconvenient.11. Which of the following best expresses the author's opinion in the last paragraph?A. Worlds to experience.B. An environment to share.C. No environment, no creatures.D. One environment, many worlds.DWith self-driving vehicle technology rapidly advancing, many companies are turning to autonomous robots for the final leg of the delivery process, from the store or local distribution center to the customer. The latest to join the trend ise-commerce giant Amazon. Following a successful eight —month test run in Snohomish County, Washington, the company's Scout robots have been making the rounds of Irvine, California, since August 6, 2019.The six-wheeled Scout is about the size of a large cooler with the capacity to carry small or medium-sizedpackages. The battery-powered vehicle, which moves at a regular walking pace, has been programmed to avoid pedestrians, animals, and unexpected obstacles, such as garbage cans. Its powerful sensors can also detect the movement of a car backing out of a driveway.To accelerate Scout's development and bring it nationwide sooner, the company has created several detailed virtual maps of American suburbs and conducted trial deliveries to homes there.Though Amazon has not shown how Scout ensures the delivery is picked up by the right person, it most likely requires the customer to apply a unique code, texted to them prior to the delivery, to unlock the store box. Also unclear is the number of deliveries Scout can complete before its battery needs to be recharged. Though the initial tests are being conducted with a human for company, the robot will be autonomous in the future. Its location, however, will be tracked at all times ——ifsomeone attempts to steal Scout, Amazon employees will be instantly sensed.However, the eco-friendly robots are unable to climb stairs or open gates, which means that they can only reach consumers who live on the ground level. Additionally, the robots are unable to leave packages at the front door if the customers are not home. Whether these problems get resolved remains to be seen. For now, it appears that humans will still be needed to achieve the ever-growing demand for home and office deliveries.12. What are many companies developing autonomous robots for?A. Final tests.B. The so-called last mile.C. Robots' safety.D. Delivery speed.13. What can we infer about Scout from paragraph 2?A. It looks like a cooler.B. It adjusts its speed accordingly.C. Its sensors play a key role.D. It will be widely used soon.14. What does the underlined phrase “prior to" in paragraph 4 mean?A. Before.B. After.C. In front of.D. Due to.15. From which is the text probably taken?A. A biology textbook.B. A health magazine.C. A newspaper.D. A travel brochure.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住选项。
甘肃省武威第六中学2020高三英语上学期第六次诊断考试
甘肃省武威第六中学2020届高三英语上学期第六次诊断考试试题第Ⅰ卷第一部分阅读理解(共两节，满分40分)第一节(共15小题;侮小题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。
A.Qingming Festival, which falls on April 5 this year, is known as Tomb-Sweeping Day. The festival always appears about the beginning of April when spring has come. Not only is it a period for commemorating the dead, it is also a time for people to go out and enjoy nature. Where is the best place to go during the festival? Here are 3 popular tourist attractions.Jiuzhaigou Valley Scenic and Historic Interest AreaIn the spring, the sight of the Jiuzhaigou Valley is refreshing and touching. The ice and snow begin to melt, water and streams begin to flow and mountain flowers blossom. The air is filled with the fragrance of spring. The soft and lazy spring sun kisses the surface of the lake and new growth.Huanghuacheng Great WallHuanghuacheng is the only lakeside part of the Great Wall in Beijing. It is one of the most popular destinations for a Great Wall hiking tour. It is a hit because of the "train for spring", namely a train that travels through fields full of cherry blossoms. It is extremely romantic to take this train in spring with someone you love.Mount HuangshanOf all the notable mountains in China, Mount Huangshan is probably the most famous and is found in the southern part of East China's Anhui province. It is known for its breathtaking natural scenery. In the spring, Mount Huangshan is fresh, tender and full of wild flowers, and the sound of birdsong also is pleasant in the quietness1. Which one is TRUE about the Qingming Festival?A. It falls on April 5 every year.B. We sweep tombs on that day.C. It is all about enjoying springD. All of the world is celebrating thefestival.2. What do the common point the first two attractions have?A. They are in Beijing.B. They are beside lakes.C. They are attractions for couples.D. They are famous for cherry blossoms.3. What can we learn about Mount Huangshan according to the text?A. It is very attractive because of its amazing view.B. It is thegreatest mountain in China.C. Thanks to its quietness, it is pleasant.D. It is in the south ofChina.BSeptember 23 usually means another new season has started，but what exactly you should call that season depends on where in the world you are and whom you ask．In Great Britain, the third season of the year usually has only one name：autumn．But if you go across the Atlantic，you’ll find that people use both fall and autumn when referring to this time of year，making it the only season in the English language with two widely accepted names．So what is it about the season that makes it so special?According to ，fall isn’t a modem nickname that follows the more traditional autumn．The two terms are actually first recorded within a few hundred years of each other．Before either word appeared，the season between summer and winter was known as harvest，or hærfest in Old English．The word is of Germanic stock and means“picking”“plucking’’or“reaping”，all act of gathering and preserving crops before winter．In the 1500s，English speakers began referring to the seasons separating the cold and warm months as either the fall of the leaf or the spring of the leaf，or fall and spring for short．Both terms were simple，but for some reason，only spring had staying power in Britain．By the end of the 1600s，autumn，from the French word autompne and the Latin autunmus, had overtaken fall as the standard British term for the third season．Around the same time England adopted autumn，the first-ever British Americancolonists were voyaging to North America．With them they brought the words fall and autumn，and while the former fell out of fashion overseas，it solidified itself in the local vernacular by the time America won its independence．Today，using both words to describe the season before winter is still uniquely American behavior．4．What is the purpose of Paragraph 1?A．Draw out the topic of the passage．B．Explain the difference between fall and autumn．C．Point out the importance of English vocabulary．D．Serve as the background of the passage．5．According to the passage，what can we learn about“fall”?A．It is spoken by the English．B．A mericans only use“fall”．C．It is short for the fall of the leaf D．It was first used by Germans．6．What does the underlined word“reaping”in Paragraph 3mean?A．Cutting． B．Harvesting． C．Jumping．D．Falling．7．In which section of a newspaper may this text appear?A．Science． B．Gardening．C．Culture．D．Tourism．CJane Austen is loved mainly as a charming guide to fashionable life in the Regency period (英国摄政时期). She is admired for describing a world of elegant houses, dances, servants and fashionable young men driving barouches (四轮四座大马车). But her own vision of her task was completely different. She was an ambitious and strict moralist. She was highly conscious of human failings and she had a deep desire to make people nicer: less selfish, more reasonable and more sensitive to the needs of others.In Pride and Prejudice, Mr. Darcy and Elizabeth Bonnet start off heartily disliking each other and then, gradually realize they are in love. They make one of the great romantic couples. He is handsome, rich and well connected; she is pretty, smart and lively. But why actually are they right for one another?Jane Austen is very clear. It’s for a reason we tend not to think of very much today: It is because each can educate and improve the other. When Mr. Darcy arrives in the neighborhood, he feels “superior” to everyone else, because he has more moneyand higher status. At a key moment, Elizabeth condemns his arrogance (自大) and pride to his face. It sounds offensive in the extreme, but later he admits that this was just what he needed.Mostly, we tend to think of love as liking someone for whom they already are, and of total acceptance. But the person who is right for us, Austen is saying, is not simply someone who makes us feel relaxed or comfortable; they got to be able to help us overcome our failings and become more mature, more honest and kinder—and we need to do something similar for them.8. What do we know about Jane Austen from paragraph 1?A. She lived a fashionable life.B. She wrote about the life of therich.C. She knew exactly human virtues.D. She was nicer to less selfishpeople.9. What can we learn about Mr. Darcy from the text?A. He dislikes Elizabeth from the beginning to the endB. He is handsome, rich and rather modest.C. He is kind to everyone in the neighborhood.D. He needs Elizabeth to point out his shortcomings.10. Which person is right for you according to Jane Austen?A. A person that you like for who he or she is.B. A person with whom you feel really relaxed.C. A person making you become a better man or woman.D. A person who does something similar to you.11. What message does the book Pride and Prejudice convey?A. Improve yourself with your lover’s help.B. Accept the people you lovetotally.C. Earn much money to make people love you.D. Find your true love with prideand prejudice.DThe idea that computers have some amount of “intelligence” is not new, saysRalph Haupter, the president of Microsoft Asia, pointing as far back as 1950 when computer pioneer Alan Turing asked whe ther machines can think. “So it has taken nearly 70 years for the right combination of factors to come together to move AI from concept to reality,” says Haupter.It is predicted that the development of artificial intelligence will be the story of the comi ng generations, not just the coming year, but as 2020 gets underway, you’ll find AI will begin to touch your life in many ways according to some researchers.“Personal assistant AIs will keep getting smarter. As our personal assistants learn more about our daily routines, I can imagine the day I need not to worry about preparing dinner. My AI knows what I like to eat, which days of the week I like to cook at home, and makes sure that when I get back from work all my groceries are waiting at my doorstep, rea dy for me to prepare that delicious meal I had been longing for.” ---Alecjandro Troccoli, senior research scientist, NVIDIA.“Thanks to AI, the face will be the new credit card, the new driver’s license and the new barcode (条形码). Facial recognition is already completely transforming security with biometric capabilities being adopted, and seeing how technology and business are connected, like Amazon is with Whole Foods, I can see a near future where people will no longer need to stand in line at the store.” ---Georges Nahon, president, Orange Institute, a global research laboratory.“2020 will be the year AI becomes real for medicine. By the end of the year we’re seeing solutions for population health, hospital operations and a broad set of clinical specialties quickly follow behind.” ---Mark Michalski, executive director, Massachusetts General Hospital.12. What can we know about AI from the first two paragraphs?A. People didn't expect AI to develop so rapidly.B. The idea of AI just came up recently.C. The concept of AI was put forward by Ralph Haupter.D. It took more than 70 years to turn the concept into reality.13. Who sees the future of AI doing housework instead of human being?A. Alan Turing.B. Georges Nahon.C. Mark Michalski.D.Alejandro Troccoli.14. What is Georges Nahon’s job?A. Executive director of a hospital.B. President of a researchlaboratory.C. Chairman of an energy corporation.D. Chief operating officer of anewspaper.15. How is the passage developed?A. By explaining cause and effect.B. By presenting research results.C. By listing some predictions.D. By describing personalexperiences.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。
甘肃省武威市第六中学2020届高三上学期第二次阶段性复习过关考试英语试题 含答案
武威六中2020届高三一轮复习过关考试（二）英语本试卷分第I卷（选择题）和第Ⅱ卷（非选择题）两部分第I卷第一部分：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。
AThe Coca-Cola Company announced it had added a new alcoholic beverage（饮料）to its portfolio（证券投资组合）only in the Japanese market. The low- alcohol drink, or Chu- Hi, is a watereddown mixture of the Shouchu spirit plus flavoring. This isn't the first time Coca-Cola has experienced with flavors and tastes.Not all flavors are successful, but the unique flavors deserve a round of applause. Here are five other unusual coca cola products that were released.BeverlyIntroduced in 1969, Beverly was an Italian aperitif（开胃酒）, designed to be consumed before meals and believed to aid digestion. Competitors like Campari and San Pellegrino led to its discontinuation in 2009.OK SodaThis product was started to capture the Generation X market in 1993. OK Soda cans had grim-looking illustrations in its ad campaign that responded to the idea that Generation X was cynical and disillusioned. Its slogan was "Things are going to be OK" and it even had its own manifesto(宣言). It was discontinued in 1995.Coca - Cola BlakCoffee in soda? Coca-Cola had developed this recipe for two years and finally released the carbonated coffee drink in 2006. It hoped it would tap into the premium coffee markets, but just one year later Blak was discontinued.New CokeIn 1985, the 99- year- old company decided it was scrapping its classic Coca- Cola recipe for a sweeter version to compete with Pepsi. In blind taste tests, people generally preferred the new recipe compared to the old. But three months after making the switch, the company announced the return of the classic Coca-Cola.Coca-Cola PlusAfter more than a decade of research and development, Coca-Cola started its first ever soda approved by the FOSHU food standard. The no-calorie and no-sugar drink contains fiber that will help reduce fat absorption （吸收）and help moderate blood sugar levels.1. Which of the following can help make fat absorption less?A. OK Soda.B. Coca-Cola Blak.C. Coca-Cola Plus.D. New Coke.2. Which of the following lasted longest?A. BeverlyB. OK Soda.C. Coca-Cola Blak.D. New Coke.3. What can we infer from the text?A. It's the first time Coca-Cola has experienced with flavors.B. Coca-Cola Plus is a no-calorie and no-sugar drink.C. All flavors by Coca-Cola Company are not successful.D. There are many successful products in Coca-Cola Company.BArt has always been a vital part of my life. When I was old enough to appreciate genuine fine art , my parents started bringing me to museums that housed works of the greatest artists in the world.When my art teacher asked us to do a Cubist（立体派的)drawing, my first thought was that she was just joking. I didn't like Cubism. I thought to do so means making fun of the true artists I admired. Unwillingly, I began to find out items for my drawing, I carelessly drew the objects all from different view points. The pictures all looked like a mess of lines and shapes anyway, but I was more concerned with how many more minutes were in the period because I was hungry. Yet, the other part of me was growing quieter. I began to take my task seriously and darken specific lines. I stared at my drawing and determined which ones needed to be emphasized. I was soon shading certain shapes black and they brought out important figures. It must be absolutely perfect.When I showed her my finished drawing, my teacher looked at me with her huge smile and simply stated, "You are a Cubist. " At that moment the world stopped moving. My cubist drawing was the best piece of art I had ever created, not because I had spent the most time on it but because I had felt it. I thought of how I produced it. Once I felt frustrated, trying to perfect my black lines. Another time I was delighted in breathing life into the drawing by adding color. All of these emotions showed themselves in my work, giving it life that none of my previous works had had. Cubism set me free, showing everything I knew, everything I was, and everything I wished I could be. I hadfound the missing link, and the world began to move again.4. How did the author first react to his art teacher's request?A. He was unwilling to do it.B. He was pleased to do it.C. He was worried about it.D. He was confused about it.5. What do you think of the writer according to the text?A. Absent-minded.B. Self-centred.C. Warm-hearted.D. Strong-willed.6. What does the underlined part in the last paragraph refer to?A. The enthusiasm of painting.B. The relationship with his teacher.C. The method to do a Cubist drawing.D. The determination to be a Cubist.7. What lesson can we get from the text?A. Practice makes perfect.B. Attitude is everything.C. It is never too old to learn.D. Action speaks louder than words.CThe Leaning Tower of Pisa was not leaning when it was built in 1173 and it was straight like a pole. It started to shift direction soon after construction because of poor foundation in addition to the loose layer of subsoil(底土). At the beginning, it leaned to the southeast before the shaky foundation started to shift leaning towards the southwest. After the period of structural strengthening in the beginning of 21st century, now the Leaning Tower of Pisa leans at an angle of 3.97 degrees.In 1178, the shift in direction was observed for the first time when the construction had progressed further to the third floor. The tower was very heavy for the three-meter foundation that was built on a weak area of land.For compensating(补偿) the leaning position, the builders started to construct the upper floors with one side higher than the other one. This caused the tower to lean in the other direction. This unusual structure led to the tower being actually curved. In spite of these efforts, the tower kept on leaning.The government of Italy started to plan a prevention of the complete collapse of the tower in 1964. However, a request was put forward by the authorities to keep the leaning position because of the tourism industry of the region.After nearly two decades of careful planning by engineers, historians and mathematicians, the stabilization（稳定；稳定化）efforts for the Leaning Tower of Pisa started in 1990. The tower was closed for the general public and the people living nearby moved away. For reducing the total weight of the tower, its seven bells which represented the seven musical notes were removed. The tower was reopened for the general public on December 15, 2001.In May 2008, after removing another 70 metric tons of earth, the engineers announced that the tower had been finally stabilized and it would remain stable for at least 200 years.8. Why did the Leaning Tower of Pisa began to lean?A. It was too high like a pole.B. Its foundation was far from strong.C. The work of repair was delayed.D. Its foundation shook badly.9. When did people notice the Leaning Tower of Pisa shift its direction?A. As soon as it was constructed.B. At the end of the construction.C. Soon after the construction.D. In the course of the construction.10. Why did the authorities prefer to keep the leaning position of the Leaning Tower of Pisa?A. They wanted to attract more tourists.B. They lacked funds then.C. It was a mission impossible to make the Tower up-straight.D. They were short of engineers, historians and mathematicians.11. Which of the following is the right order according to this passage?a. People noticed the tower began to shift its direction.b. The repair work was carried out last time.c. The Leaning Tower of Pisa was repaired for the first time.d. The Leaning Tower of Pisa was built.e. The tower was opened to the visitors again.f. The government started to make a plan for the tower.A. c, d, a, f, b, eB. f, e, a, d, c, bC. d, e, b, f, c, aD. d, a, f, c, e, bDPositive thinking is a significant element of happiness. In order to become a positive thinker, determination and consistency are important. The first thing to know about positive thinking is that everyone can do it. With certain cognitive (认知的) and behavioral changes, we can all become positive thinkers. Another important factor is that being a positive thinker does not mean you become numb to anything that is not working properly in your life or is negative - it just means that you approach life and face challenges with a healthier outlook.Instead of selectively attending to negative events, focus on the positive ones. Then pay attention to the delayed consequences of your behavior rather than the immediate ones. For example, if a job is not going like you want, focus on the fact that you have a job and how you can take your time to make the situation better.Challenge any internal attributions（归因）and see if you compare your behavior to standards that are excessively （过分地；过度地；极度地）rigid（恰当地；公正地）and perfectionistic. If so, change these and be reasonable with your comparisons. For example, if you constantly compare your weaknesses with other people's strengths, then switch this and compare yourself with those who are doing poorer than you as well. Overall, people who focus more on their strengths than their weaknesses but at the same time are aware of their weaknesses have a healthier self-evaluation result.When faced with too much fear about a situation, imagine the worst case and visualize（形象化；设想）a solution for it, then let go of fear. This way, you will be prepared for anything and your fear will not block you from being open and creative to different solutions. For example, if you are constantly worried about losing your job up to a point where it is creating a lot of anxiety and fear and is effecting your performance and your happiness negatively, then think of losing your job, visualize how you will handle it, find solutions in your mind and then let go of the thought and the fear attached to it.So positive thinkers are better problem solvers and have better interactions. In addition to that, people who are positive thinkers are happier and more satisfied with their life.12. Why is positive thinking a significant element of happiness?A. It means that one is blind to the troubles and difficulties that exist.B. It means that one constantly compares everything with other people's.C. It means that one is strong in mind and has nothing to be afraid of.D. It means that one approaches life and faces challenges more healthily.13. What does the text suggest about the job you don't like?A. Quitting it and finding a better one.B. Keeping and trying to make it better.C. Being negative and numb to it.D. Challenging yourself with a new outlook.14. What does the author intend to tell us in paragraph 4?A. Be prepared for the worst: and let go of fear.B. Being constantly worried will lose your job.C. Fear will prevent you being open and creative.D. There is nothing to fear if well prepared.15. What can be a suitable title for the text?A. How to focus on the positive eventsB. How to be a positive thinkerC. What to do when faced with fearD. What to know of self-evaluation第二节（共5小题，每小题2分，满分10分）根据短文内容，从短文后的七个选项中选出能填入空白处的最佳选项。
甘肃省武威市第六中学2019届高三英语下学期第二次诊断考试试题
武威六中2018-2019学年度高三第二次诊断考试英语试卷第一部分阅读理解（共两节，满分40分）第一节(共15小题；每小题2分，满分30分)ALearning Java by OnlineGathaPrice: $1.5 Words: 93,560 Language: English Published: May 21, 2018This book has been designed for students as well as teachers to help them out in learning the fundamental concepts of the Java Programming Language. It uses a bottom-up approach in explaining various topics -- that is, it explains basic syntax(句法) and gradually moves towards the complex problems.Ice Age by John Gribbin & Mary GribbinPrice: $3.99 Words: 26,790 Language: English Published: December 15, 2014John and Mary Gribbin tell the remarkable story of how we came to understand the phenomenon of Ice Ages. How frequently do Ice Ages occur? How do astronomical rhythms affect the Earth's climate? Have there always been two polar ice caps? What does the future hold?The Pool Bible by Ken WalkerPrice: $14.95 Words: 77,400 Language: English Published: March 21, 2013 Maintain your own pool - and save pots of money! A plain-language guide to care and maintenance of swimming pools by an expert in the field. The secrets of water balance and pH are laid bare for the backyard pool-owner! The Pool Bible is full of tips, tricks & advice. Save 10% of the cover price in the first 12 months or YOUR MONEY BACK. (PS - No-one has asked for a refund yet.)The Oblivion Stone by Alexandra MoodyPrice: $3.99 Words: 85,430 Language: English Published: February 12, 2018A battle between the humans and the Unfaih appears on the horizon, and Sloane and Rhyn must take measures to stop the violence that threatens to destroy everyone they love. Can they find the solution in time? Get your copy of the third book in The Liftsal Guardians series now!1．What’s the theme of the book by OnlineGatha?A. Computer scienceB. School lifeC. Climate changeD. A TV program2． What does the book The pool Bible promise its readers?A. Quick deliveryB. A free presentC. The chance of a refundD. Better after-sales service3． Which book is published as part of a series?A. Ice AgeB. The Pool BibleC. Learning JavaD. The Oblivion StoneBMy husband and I were taking car e of Lizzy, our daughter Melanie’s pet dog, on April 17 while Melanie was in the early stage of labour at the hospital. We received a text from our son-in-law, Joe Levanti, that Melanie was about to give birth. Tom and I sprang from our chairs suddenly. It’s a tradition in our immediate family to wait at the hospital for a birth. This would be Melanie and Joe’s f irst child.“You take Lizzy out before we leave, and I’ll be waiting for you in the car!”I told Tom. I started the car and waited impatiently. I saw my husband walk out of the front door- but then out shot Lizzy and she was running down the street at great speed.My husband ran after the dog, and I followed in my car. “Lizzy! Lizzy!” we shouted as fear filled our heart. We chased her up and down ou r Bellwood Avenue. “She’s running onto Wireless Road!” We both screamed with fear. Lizzy dashed back and forth in the busy street. My husband kept up his chase on foot. I shouted to my husband, “Tom! Be careful when you cross the street!”Within minutes, traffic was actually stopped on Wireless Road. A half-dozen good people got out of their cars to help. Soon, she ran into a safer area and then back to our street. With the help of six strangers, we caught her within a few anxious minutes. Everyone cheered, and we thanked the helpers again and again.With Lizzy safely back inside, we drove straight to the hospital and were able to see our daughter in the delivery room. My husband and I are forever grateful to the strangers who might have saved Lizzy’s life a nd who enabled us to be there at the beginning of a precious new one.4． Why was the author going to the hospital?A. Because she didn’t feel herself that day.B. Because her pet dog was hit by a car.C. Because her daughter was ill in hospital.D. Because her daughter was giving birth at the hospital.5． How did the author feel while Tom was running after the dog?A. ConcernedB. ImpatientC. ThankfulD. Regretful6． Where was the dog finally caught?A. On Wireless RoadB. In a safer areaC. On Bellwood AvenueD. In the author’s car7．What is the purpose of writing this text?A. To show us how they got back their pet dog.B. To tell us how they managed to see their daughter.C. To express their sincere thanks to the kind strangers.D. To tell us what trouble their pet dog has caused them.CAre you sometimes a little tired and sleepy in the early afternoon? Many people feel this way after lunch. They may think that eating lunch is the cause of the sleepiness. Or, in summer, they may think it is the heat. However, the real reason lies inside their bodies. At that time—about eight hours after you wake up—your body temperature goes down. This is what makes you slow down and feel sleepy. Scientists have tested sleep habits in experiments where there was no night or day. The people in these experiments almost always followed a similar sleeping pattern. They slept for one long period and then for one short period about eight hours later.In many parts of the world, people take naps in the middle of the day. This is especially true in warmer climates, where the heat makes work difficult in the early afternoon. Researchers are now saying that naps are good for everyone in any climate.A daily nap gives one a more rested body and mind and therefore is good for h ealth in general. In countries where naps are traditional, people often suffer less from problems such as heart disease. Many working people, unfortunately, have no time to take naps. Though doctors may advise taking naps, employers do not allow it! If you do have the chance, however, here are a few tips about making the most of your nap. Remember that the best time to take a nap is about eight hours after you get up. Ashort sleep too late in the day may only make you feel more tired and sleepy afterward. This can also happen if you sleep for too long. If you do not have enough time, try a short nap—even ten minutes of sleep can be helpful.8．Why do you sometimes feel sleepy in the early afternoon?A. Because you eat too much for lunch.B. Because it's hot in summer.C. Because your body temperature goes down at that time.D. Because you didn't have a good sleep last night.9．What can we learn about “naps” according to the last paragraph?A. All the people in warmer climates take naps in the middle of the day.B. Doctors need to take naps while employers don't.C. If you take naps every day, you'll never suffer from heart disease.D. Taking naps regularly is beneficial to people's health.10．What can we infer from the passage?A. If you get up at 6:30 am, you'd better take a nap at about 1:30 pm.B. Taking a nap whenever you want will do good to your health.C. You will feel less sl eepy if you sleep for a long time.D. You'll feel sleepy at regular intervals(间隔).11．What would be the best title for the text?A. Just for a RestB. All for a NapC. A Special Sleep PatternD. Taking Naps in Warmer ClimateDSince the beginning of the year，smog has covered parts of North China．In January Beijing saw only five days without smog．The rising PM 2.5 readings terrified many people，and some health experts said that whenever the smog gets serious hospitals receive more patients suffering acute respiratory（呼吸系统）and heart diseases．Later news of polluted underground wa ter in some provinces scared people who wondered whether the water they drink is safe．So the need to emphasize environmental protection while developing the economy is heard everywhere．Smog is especially a common concern．As a popular online post said air may be the only thing that is equal for everyone，despite your income or profession．People with higher incomes are able to drink only bottled spring water and eat only organicfood by paying higher prices，but they breathe the same air as everyone else．At a meeting on Monday，many representatives have expressed their concerns about the air quality too．One talked about his experience in Beijing．"After taking a taxi from the capital airport to my hotel，which took about an hour，I washed my nose and found the inside of my nose was black．We should ask ourselves this question：Why do we want to develop？It's for living a better life．Dirty air is definitely not a better life，" he said．China needs to develop its economy and invest in high-tech．Every Chinese has a dream to make China stronger．But without blue sky，clean water and safe food, the achievements in the economy will become meaningless．Space technologies are not to be developed for building a base on Mars so that one day all human beings can move to the red planet because they have destroyed Earth．What the public wants is a str ong and beautiful China．The great efforts must be made to promote W5P2 ecological progress and build a beautiful China．The words have shown the central government's determination to address the environment issue．12．The effect of smog doesn't include____．A．the increase of people's income B．more people suffering diseases C．the rising of PM 2.5 readings D．patients increasing inhospital13．Why has smog become a common concern？____A．Because people have to pay higher prices．B．Because a popular online pos t discussed it．C．Because we have to develop industry．D．Because nobody can avoid it．14．The underlined word "they" in Paragraph 6 refers to"____"．A．space technologies B．other planetsC．human beings D．industrial development．15．From the last two paragraphs we can infer that___．A．high-tech can completely solve the problem of pollutionB．space technologies should be developed on a large scale．C．we can move to Mars after the earth has been destroyedD．we must protect the environment while developing economy．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。
甘肃省武威第六中学2020届高三下学期第六次诊断考试英语试题
武威六中2020届高三第六次诊断考试英语试题（考试时间：100分钟试卷满分：120分）第一部分阅读理解（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，并在答题卡上将该选项涂黑。
ACasting Call for TV RoleGender: FemaleLocation: Hollywood, CaliforniaGenre: TV SerialsProducer: Cooper & Cole ProductionsFull detailsWho we are looking for:Are you a woman between the ages 20 and 30? Have you had at least two years of experience as a professional actress? Would you like to appear on a TV show watched by hundreds of thousands of viewers? If you answer yes to all of these questions, this can be a great opportunity.About the role:Cooper & Cole Productions is looking for someone to play a role in the popular series, The Mystery of Glastonbury Grove. After two successful seasons, the show is about to start production of the third season. The new season will introduce a number of new characters to the show. The role we are currently seeking to fill is a main character's distant relative. The character will appear in three episodes（剧集）out of the eight in the new season. This is a silent role.How to apply:If you think you meet the requirements and are interested in working with us, submit the following information to coopandcole@ no later than October 12.Name: E-mail:Phone: Age:Height: Weight:Your works: （Please attach the VIDEO/LINK.）**Attach several recent photos of yourself.Auditions（试镜）will be held at our Hollywood office at 8:00 am on Saturday, October19. If you are selected for an audition, we will contact you by October 16.1. Who might be an ideal applicant for the TV role?A. A schoolgirl having a gift for performing.B. An experienced actor proud of what he did.C. A famous person eager for a role in movies.D. A 29-year-old actress acting in many films.2. What can we learn about the new role?A. It will not have any dialogue.B. It will exist in the fourth season.C. It will appear in at least 8 episodes.D. It will be the wife of a main character.3. What should applicants submit?A. The address.B. Previous works.C. Recent family photos.D. A recommendation letter.BOne rainy afternoon, I was on a crosstown bus when a young woman jumped on. She had a child with her who was about three or four years old. The bus was full, bumpy（颠簸的）, and it soon got noisy, as her kid began crying —he was upset that he couldn't sit next to his mother. She looked embarrassed.Then another woman, a little older, stood up and moved so that the mother and child could sit together. The mum smiled as a thank-you. And then three words came out of the older woman's mouth that raised the entire energy of that bus ride: “I've been there.”Simple, undramatic, and honest. In that moment, it seemed to unite the diverse people of the city. Why? Because almost all experiences are shared human experiences. They're universal. We forget that as we go through life, focused on our own troubles and needs — which are actually less unique than we think.Sometimes painful past experiences prevent us from wanting to open up to others because we don't want to revisit our own history. But a wonderful way to honor your past hurt is to help comfort another's current pain.When I was a little girl, we lived on donations from local families and clothing from the " lost and found" baskets. It was shameful for me at the time — I lived in fear of being caught in a friend' s cast-off item.Even when it was warmer, I refused to take off a layer in the classroom for this reason. Now I don't meet people who are in this exact situation, but I do notice when someone is struggling with financial shame or feels less than other people they meet. And I'm quick to say some version of, "I'vebeen there."Can the essence of these three words help you make a small difference right now? It can be as simple as volunteering your seat, sharing some helpful advice, or even lightening the mood with a joke when you notice that someone's uncomfortable — because we're all in this together.4．What influence did the older woman's words have on the people around?A．Causing discomfort. B．Breaking long silence.C．Creating a heated debate. D．Inspiring common feelings.5．What does the author think of personal troubles and needs?A．They are mostly shared experiences. B．They don't really matter to anyone'C．They will be forgotten with time. D．They are unique to each individual. 6．Why did the author refuse to take off the coat in the classroom?A．Because she had the same sweater with others.B．Because she stole the sweater from someone'C．Because she liked wearing the coat in summer.D．Because she felt embarrassed wearing others' clothes.7．What's the best title for the text?A．Painful Experiences Are No Big Deal B．The Best Way to Honor Your Past Hurt C．True Happiness Comes from Helping Others D．Three Little Words That Bring Us TogetherCDo you want to look fashionable? Is looking fashionable more important than being comfortable? Many people seem to think so, judging by the things they wear. But fashion is not everything. It is more important to be a healthy and good person.People go to great lengths to be fashionable. Some people think they have to have a certain body type, so they go on extreme, unhealthy diets in order to change their bodies. In addition, many women wear uncomfortable fashions, such as high-heeled shoes that create blisters, tight body shapers that limit blood flow, and sticky false eyelashes（假睫毛）. Men and women alike spend time and money on products that change their natural hair color and use hot irons and blow dryers to curl or straighten their hair. Some people spend several hours a day in front of a mirror. Is fashion important enough to spend so much time and effort on changing how they look like?If the purpose of fashion is to make a person feel good, it does not make sense that he or shewould go through so much discomfort to be fashionable. Fashion should not come first. People should prioritize（优先考虑）being healthy and positive. What people wear does not indicate anything about their personalities. Instead of spending hours choosing a suit, perhaps you should call your friends and do something together. Instead of going on strict diets and starving, why not eat some healthy foods and then exercise? By doing these things, you can keep a healthy lifestyle and truly grow as a person.8. Why does the author ask questions in the first paragraph?A. To enrich the content.B. To introduce the topic.C. To reflect different attitudes.D. To make readers think and give their opinions.9. Which statement best represents the author’s viewpoint?A. Fashion can make people do some unhealthy things.B. Fashion increases famous people’s self-respect.C. When you look good, you feel good.D. People need to diet to lose weight.10. Which of the following activities would the author most likely recommend?A. Shopping for fashionable clothes.B. Going on a strict diet with a friend.C. Going skating with friends.D. Changing the hairstyle every week.11. The author’s main purpose in writing the text is to .A. show readers advantages and disadvantages of dietingB. persuade readers to value health more than fashionC. tell readers ways to become fashionableD. inform readers of the latest fashion trendsDLife expectancy in the United States has been in decline for the first time in decades, and public health officials have identified a series of potential causes, including inaccessible health care, rising drug addiction and rates of mental health disorders, and socio-economic factors. Now, a study led by the Yale School of Medicine has attempted to find out the relative impact of two factors most often linked to life expectancy—race and education—by looking at data about 5,114 black and white participants in four U.S. cities.The lives and deaths among this group of people—who took part in the study approximately 30 years ago when they were in their early 20s—show that the level of education, and not race, is the bestpredictor of who will live the longest.Among the 5,114 people followed in the study, 395 had died. These deaths were occurring in working-age people, often with children, before the age of 60. The rates of death among participants in this group did clearly show racial differences, with approximately 9% of blacks dying at an early age compared to 6% of whites. There were also differences in causes of death by race. For instance, black men were significantly more likely to die of murder and white men from AIDS. The most common causes of death across all groups over time were cardiovascular disease and cancer.But there were also obvious differences in rates of death by education level. Approximately 13% of participants with a high school degree or less education died compared with only approximately 5% of college graduates.Strikingly, when looking at race and education at the same time, the researchers found that differences related to race almost disappeared: 13.5% of black subjects and 13.2% of white subjects with a high school degree or less died during the course of the study. By contrast, 5.9% of black subjects and 4.3% of whites with college degrees had died.Therefore, improving overall quality of education is something tangible that can help reverse（扭转）this troubling trend in reduction of life expectancy among middle-aged adults.12. What can we learn about the participants in the study?A. The whites are more aggressive.B. The whites got higher education.C. More blacks than whites died young.D. More whites than blacks died of cancer.13. Compared with education, the influence of race on death rates is .A. significantB. unnoticeableC. growingD. long-lasting14. What does the underlined word “tangible” probably mean?A. Realistic.B. Creative.C. Challenging.D. Temporary.15. What can be inferred from the research findings？A. People can get smart through learning.B. One should not discriminate other races.C. People don’t enjoy equal rights for education.D. One can live longer by getting more education.第二节（共5小题；每小题2分，满分10 分）根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。
【精准解析】高三英语日积月累训练之完形填空(中等难度)38
【精准解析】高三英语日积月累训练之完形填空（中等难度）38【题文】Some ten years ago, I was studying in a middle school in London. One day, Mrs. Clara gave a math ___21___to our class. When the papers were ___22___ , she found that twelve boys had made ___23___ the same mistakes in the test.There is ___24___new about cheating in ___25___ . Perhaps that was why Mrs. Clara didn’t ___26___say one word about it. She only asked the twelve boys to ___27___after class. I was one of the twelve.Mrs. Clara asked no questions, and she didn’t ___28___us, either. Instead, she wrote the___29___ words on the blackboard: On your way home you find some _____30_____ and you’re completely sure that you will never be found out. Later someone comes to ask you if you have _____31_____some money he lost. What will you do?She then ordered us to write down the _____32_____ , and asked us to take our whole lives to try to find out our own _____33_____to it.I don’t know about the other eleven _____34_____ . Speaking for myself I can say: it was the most _____35_____single thing of my life. _____36_____ , I have been asking this question to myself when I have to make a _____37_____ .Because of this, Mrs. Clara has become the most _____38_____teacher for me in my whole life. I often think of this: if Mrs. Clara had scolded us as many other _____39_____ often did, would I go on _____40_____every day?21. A. assignment B. test C. motto D. image22. A. marked B. gathered C. distributed D. simplified23. A. correctly B. frankly C. slightly D. exactly24. A. something B. anything C. nothing D. everything25. A. exams B. situations C. sayings D. subjects26. A. ever B. once C. even D. never27. A. kneel B. stay C. stand D. punish28. A. suspect B. instruct C. scold D. obey29. A. following B. above C. long D. short30. A. wine B. time C. money D. advice31. A. abandoned B. found C. witnessed D. touched32. A. proposal B. instruction C. experience D. question33. A. answer B. reflection C. access D. appreciation34. A. people B. children C. strangers D. receivers35. A. qualified B. worthwhile C. important D. outstanding36. A. than ever B. So far C. till then D. From then on37. A. promise B. mistake C. defense D. decision38. A. unbearable B. unforgettable C. incurable D. unconventional39. A. teachers B. chiefs C. students D. workmates40. A. selecting B. misunderstanding C. punishing D. cheating【答案】21. B 22. A 23. D 24. C 25. A 26. C 27. B 28. C 29. A 30. C 31. B 32. D 33. A 34. B 35. C 36. D 37. D 38. B 39. A 40. D【解析】【分析】这是一篇记叙文。
2020届甘肃省武威第六中学高三下学期第二次诊断考试数学(理)试题(解析版)
武威六中2020届高三第二次线上诊断考试理科数学试题一、选择题（每小题5分，共60分．下列每小题所给选项只有一项符合题意，请将正确答案的序号填涂在答题卡上）1.集合}{220A x x x =--≤，{}10B x x =-<，则AB =( )A. }{1x x < B. }{11x x -≤< C. {}2x x ≤ D. {}21x x -≤<【答案】C 【解析】 【分析】先化简集合A,B ，结合并集计算方法，求解，即可．【详解】解得集合()(){}{}21012A x x x x x =-+≤=-≤≤，{}1B x x =< 所以{}2A B x x ⋃=≤，故选C ．【点睛】本道题考查了集合的运算，考查了一元二次不等式解法，关键化简集合A,B ，难度较小． 2.纯虚数z 满足()124z z i +⋅=-，则z 的共轭复数为（ ） A. 2i - B. 2iC. 4i -D. 4i【答案】B 【解析】 【分析】设()0z bi b =≠，，由复数的模和共轭复数的概念，结合复数相等的条件，解方程可得b ，进而得到所求z 的共轭复数．【详解】由题意，设()0z bi b =≠，，则()()1124,z z bi b b b b i i +⋅=+⋅=+⋅=-则复数相等的条件可得2,2,2,2.4b b z i z i b b ⎧=⎪∴=-=-=⎨⋅=-⎪⎩故选B.【点睛】本题考查复数的模和共轭复数的概念，以及复数相等的条件，考查运算能力，属于基础题．3.各项均为正数的等比数列{}n a 中，1a ={}n a 的前n 项和为3,2n S S =+.则7a =（ ）A. B. C. 8D. 14【答案】A 【解析】 【分析】设等比数列{}n a 的公比为,q 利用等比数列通项公式,结合3123S a a a =++得到关于q 的方程,解方程求出公比q ,然后代入等比数列通项公式求出7a 即可. 【详解】设等比数列{}n a 的公比为q ，由题意知,则)2312312S a a a q q=++=++=+解得q =由等比数列通项公式可得,6671a a q ===故选:A【点睛】本题考查等比数列通项公式和前n 项和公式;考查运算求解能力;熟练掌握等比数列通项公式和前n 项和公式是求解本题的关键;属于基础题.4.在ABC ∆中，2CM MB =，0AN CN +=，则（ ）A. 2136MN AB AC =+ B. 2736MN AB AC =+ C. 1263MN AC AB =-D. 7263MN AC AB =-【答案】C 【解析】 【分析】利用平面向量基本定理分析求解即可.【详解】由已知可得点M 是靠近点B 的三等分点，又点N 是AC 的中点．2132MN MC CN BC CA =+=+21()32AC AB AC =--1263AC AB =-故选C【点睛】本题考查平面向量基本定理的应用，属基础题.5.把不超过实数x 的最大整数记为[]x ，则函数[]()f x x =称作取整函数，又叫高斯函数，在[]2,5上任取x ，则[]x =的概率为（ ）A.14B.13C.12D.23【答案】B 【解析】 【分析】由题意分类，求得使[x]＝[2x ]成立的x 的范围，再由长度比计算即可得答案． 【详解】当2≤x ＜3时，[x]＝[2x ]＝2； 当3≤x ＜4时，[x]＝3，[2x ]＝2； 当4≤x ＜4.5时，[x]＝4，[2x ]＝2； 当4.5≤x ＜5时，[x]＝4，[2x ]＝3．符合条件的x ∈[2，3），由长度比可得，[x]＝[2x ]的概率为321523-=-． 故选B ．【点睛】本题主要考查几何概型的概率、分类讨论思想，属于基础题． 6.函数1lg1y x =-的大致图象为（ ） A. B. C. D.【答案】C 【解析】 【分析】根据函数的对称性及在对称轴右侧的单调性即可判断函数图象的大致形状，利用排除法选出答案. 【详解】由题意得，函数1lg1y x =-的关于1x =对称，排除B 、D ； 当1x >时，函数1lg1y x =-为单调递减函数，排除A ，故选C. 【点睛】本题主要考查了含绝对值的对数型函数的对称性，单调性，图象，属于中档题. 7.设向量()()3,3,1,1a b ==-，若()()a b a b λλ+⊥-，则实数λ=（ ） A. 3 B. 1C. ±1D. 3±【答案】D【分析】根据()()3,3,1,1a b ==-，求得()()3,3,3,3a b a b λλλλλλ+=+--=-+，再根据()()a b a b λλ+⊥-，有()()2330λλ+-=求解.【详解】因为向量()()3,3,1,1a b ==-，所以()()3,3,3,3a b a b λλλλλλ+=+--=-+， 因为()()a b a b λλ+⊥-， 所以()()2330λλ+-=， 解得3λ=±. 故选：D【点睛】本题主要考查平面向量的坐标运算，还考查了运算求解的能力，属于基础题.8.已知实数a ，b 满足11122a b⎛⎫⎛⎫<< ⎪ ⎪⎝⎭⎝⎭，则（ ） A. 11a b> B. 22log log a b >C.< D. sin sin a b >【答案】B 【解析】 【分析】首先利用指数函数的性质得到a ，b 的范围，然后逐一考查所给的不等式，即可求得答案. 【详解】11122a b⎛⎫⎛⎫<< ⎪ ⎪⎝⎭⎝⎭由指数函数的单调性, 可得：0a b >>对于A ，由0a b >>，可得11a b<，故A 错误； 对于B ，由0a b >>，可得22log log a b >，故B 正确；对于C ，由0a b >>>C 错误；对于D ，根据sin y x =图象可得，由0a b >>，sin a 与sin b 的大小无法确定，故D 错误；【点睛】本题主要考查了根据已知不等式判断所给不等式是否正常，解题关键是掌握不等式比较大小方法，考查了分析能力和计算能力，属于基础题. 9.已知1cos 63πα⎛⎫+= ⎪⎝⎭，则sin 26πα⎛⎫-= ⎪⎝⎭（ ） A. 89-B.89C.79D. 79-【答案】C 【解析】 【分析】根据二倍角公式求得cos 23πα⎛⎫+⎪⎝⎭，再利用诱导公式求得结果. 【详解】1cos 63πα⎛⎫+= ⎪⎝⎭ 227cos 22cos 113699ππαα⎛⎫⎛⎫⇒+=+-=-=- ⎪ ⎪⎝⎭⎝⎭7cos 2cos 2sin 236269ππππααα⎡⎤⎛⎫⎛⎫⎛⎫∴+=-+=--=- ⎪ ⎪ ⎪⎢⎥⎝⎭⎝⎭⎝⎭⎣⎦7sin 269πα⎛⎫∴-= ⎪⎝⎭本题正确选项：C【点睛】本题考查二倍角公式、诱导公式的应用，关键是能够利用诱导公式将所求角与已知角联系起来.10.已知双曲线22221x y a b-=的左、右焦点分别为1F ，2F ，过右焦点2F 作垂直于x 轴的弦MN ，交双曲线于M 、N 两点，若1MF N ∠=2π，则双曲线的离心率e =（ ）A.B.C.D.1【答案】D 【解析】 【分析】根据过右焦点2F 作垂直于x 轴的弦MN ，则2bMF a=，再根据1MF N ∠=2π，则有12MF F F = ，即22b c a=求解.【详解】因为过右焦点2F 作垂直于x 轴的弦MN ，所以2b MF a=，又因为1MF N ∠=2π， 所以12MF F F = ，即22b c a=，所以2222b c a ac =-=，2210e e --=，解得21e =+.故选：D【点睛】本题主要考查双曲线的几何性质，还考查了运算求解的能力，属于中档题.11.１７世纪德国著名的天文学家开普勒曾经这样说过：“几何学里有两件宝，一个是勾股定理，另一个是黄金分割．如果把勾股定理比作黄金矿的话，那么可以把黄金分割比作钻石矿．”黄金三角形有两种，其中底与腰之比为黄金分割比的黄金三角形被认为是最美的三角形，它是顶角为36︒的等腰三角形（另一种是顶角为108︒的等腰三角形）．例如，五角星由五个黄金三角形与一个正五边形组成，如图所示，在其中一个黄金ABC ∆中，512BC AC -=.根据这些信息，可得sin1314︒=（ ）A. 35+B. 45+ C. 251- D. 51+【答案】D 【解析】 【分析】在ABC ，由正弦定理可知：sin sin 36sin sin 72BC BAC AC ABC ︒︒∠==∠，即可求得cos36︒值，根据诱导公式化简sin1314cos36︒︒=-，即可求得答案.【详解】ABC ，由正弦定理可知：sin sin 36sin 361sin sin 722sin 36cos362cos36BC BAC AC ABC ︒︒︒︒︒︒∠=====∠∴cos364︒==又()sin1314sin 3360234︒︒=⨯+︒()sin 234sin 18054sin54︒︒︒︒==+=- ()sin 9036cos36︒︒︒=--=-=故选：D.【点睛】本题主要考查了根据正弦定理和诱导公式求三角函数值，解题关键是掌握正弦定理公式和熟练使用诱导公式，考查了分析能力和计算能力，属于中档题.12.22,2()1log ,22a x x x f x x x ⎧-≤⎪=⎨->⎪⎩的值域为R，则f 的取值范围是 A. 1,2⎛⎫-∞- ⎪⎝⎭B. 5,4⎛⎫-∞-⎪⎝⎭C. 5,4⎡⎫-+∞⎪⎢⎣⎭D. 51,42⎡⎫--⎪⎢⎣⎭【答案】D 【解析】因为22,()21x f x x x ≤=-≥- ，所以1101,log 21024a a a <<-≥-⇒<≤因此(f 14115log log 224a =≥=-，(f 11log 22a =<-即(f 的取值范围是51,42⎡⎫--⎪⎢⎣⎭，选D. 点睛：已知函数的单调性确定参数的值或范围要注意以下两点：(1)若函数在区间[,]a b 上单调，则该函数在此区间的任意子区间上也是单调的；(2)分段函数的单调性，除注意各段的单调性外，还要注意衔接点的取值；（3）复合函数的单调性，不仅要注意内外函数单调性对应关系，而且要注意内外函数对应自变量取值范围.二、填空题（每小题5分，共20分）13.将函数()()sin 0,0,2f x A x A πωϕωϕ⎛⎫=+>><⎪⎝⎭的图象向右平移12π个单位，再将所有点的横坐标扩大为原来的2倍，得到()2sin g x x =的图象，则A ωϕ++=__________. 【答案】46π+【解析】 【分析】根据三角函数平移和伸缩变换可得到sin 2sin 212A x x ωπωϕ⎛⎫-+= ⎪⎝⎭，进而对应相等可求得,,A ωϕ的值，从而求得结果.【详解】()f x 向右平移12π个单位得：sin 1212f x A x ππωωϕ⎛⎫⎛⎫-=-+ ⎪ ⎪⎝⎭⎝⎭， 将12f x π⎛⎫- ⎪⎝⎭横坐标扩大为原来的2倍得：()sin 2sin 212g x A x x ωπωϕ⎛⎫=-+= ⎪⎝⎭2A ∴=，2ω=，()2126k k Z ππωϕϕπ+=-+=∈，又2πϕ<，6πϕ∴=，22466A ππωϕ++=++=+∴.故答案为：46π+.【点睛】本题考查根据三角函数图象的变换求解函数解析式的问题，关键是能够熟练掌握三角函数的平移变换和伸缩变换的基本原则. 14.已知数列{}n a ，若数列{}13n n a -的前n 项和11655n n T =⨯-，则5a 的值为________.【答案】16 【解析】 【分析】利用前n 项和公式可得第五项的值. 【详解】∵数列{}13n n a -的前n 项和11655n n T =⨯-，∴()515454554111113666655555a T T -⎛⎫⎛⎫=-=⨯--⨯-=- ⎪ ⎪⎝⎭⎝⎭=46∴445462163a ===，故答案为16【点睛】本题考查由前n 项和公式求项值，考查计算能力，解题关键是理解前n 项和与项的关系. 15.某网店统计了连续三天售出商品的种类情况：第一天售出19种商品，第二天售出13种商品，第三天售出18种商品；前两天都售出的商品有3种，后两天都售出的商品有4种，则该网店这三天售出的商品最少有_______种． 【答案】29 【解析】 【分析】由第一天售出19种商品，第二天售出13种商品，前两天都售出的商品有3种，可以得到第一天售出但第二天未售出的商品种数，同理得到第二天售出但第一天未售出的商品种数，进而得到前两天共售出的商品的种数，根据第三天售出但第二天未售出的商品种数，当这些商品都在第一天售或第二天售出时，三天售出的商品种数最少.【详解】由题意，第一天售出19种商品，第二天售出13种商品，前两天都售出的商品有3种， 所以第一天售出但第二天未售出的商品有19-3=16种，第二天售出但第一天未售出的商品有13-3=10种，所以前两天共售出的商品有19+10=29种， 如图所示：第三天售出18种商品，后两天都售出的商品有4种，得第三天售出但第二天未售出的商品有18-4=14种， 当这14种商品都在第一天售出或第二天售出商品中时，三天售出的商品种数最少有29种. 故答案为：29【点睛】本题主要考查集合的应用，还考查了理解辨析的能力，属于基础题.16.在三棱锥A BCD -中，AB AC =，DB DC =，4AB DB +=，AB BD ⊥，则三棱锥A BCD -外接球的体积的最小值为______． 【答案】823π【解析】 【分析】：先将三棱锥还原到长方体中，根据题意建立长方体体对角线与AB 的函数关系式，求解体对角线的最小值，由此得出外接球的体积的最小值．【详解】：如图所示，三棱锥A BCD -的外接圆即为长方体的外接圆，外接圆的直径为长方体的体对角线AD ，设AB AC x ==，那么4DB DC x ==-,AB BD ⊥,所以22AD AB DB =+．由题意，体积的最小值即为AD 最小，22(4)AD x x =+-，所以当2x =时，AD 的最小值为22，所以半径为2，故体积的最小值为823π．【点睛】：根据题意把三棱锥还原到长方体是解决三棱锥外接球问题的常见解法，不同题目背景，还原方法不一样，但三棱锥的四个顶点一定是长方体的顶点．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.在公差不为0的等差数列{}n a 中，148,,a a a 成等比数列，数列{}n a 的前10项和为45． （1）求数列{}n a 的通项公式；（2）若11n n n b a a +=，且数列{}n b 的前项和为n T ，求n T ． 【答案】（1）83n n a +=； （2）9nn +. 【解析】 【分析】（1）根据条件列关于公差与首项的方程组，再将结果代入通项公式得结果，（2）利用裂项相消法求和. 【详解】(1)设等差数列{}n a 的公差为d ，由148,,a a a 成等比数列可得，2418•a a a =，即()()211137a d a a d +=+，22211116+97a a d d a a d ∴+=+，0d ≠，1=9a d ∴.由数列{}n a 的前10项和为45，得101104545S a d =+=， 即904545d d +=，故13d =，13a =.故数列{}n a 的通项公式为83n n a +=； （2）()()1191198989n n n b a a n n n n +⎛⎫===- ⎪++++⎝⎭，111111111199++=9=19101011111289999n T n n n n ⎛⎫⎛⎫=-+-+-⋯--- ⎪ ⎪++++⎝⎭⎝⎭9n n =+ 【点睛】裂项相消法是指将数列的通项分成两个式子的代数和的形式，然后通过累加抵消中间若干项的方法，裂项相消法适用于形如1n n c a a +⎧⎫⎨⎬⎩⎭(其中{}n a 是各项均不为零的等差数列，c 为常数)的数列. 裂项相消法求和，常见的有相邻两项的裂项求和(如本例)，还有一类隔一项的裂项求和，如1(1)(3)n n ++或1(2)n n +. 18.如图，正三棱柱111ABC A B C -的所有棱长均2，D 为棱1BB （不包括端点）上一动点，E 是AB 的中点．（Ⅰ）若1AD A C ⊥，求BD 的长；（Ⅱ）当D 在棱1BB （不包括端点）上运动时，求平面1ADC 与平面ABC 的夹角的余弦值的取值范围．【答案】（Ⅰ）BD=1；（Ⅱ）212]. 【解析】【试题分析】(I)由1,CE AB CE AA ⊥⊥得到CD ⊥平面11ABB A ,所以CE AD ⊥,由于1AD A C ⊥,所以AD ⊥平面1A CE ,所以1AD A E ⊥,由此得到D 为1BB 的中点,所以1BD =.(I)以E 为空间坐标原点建立空间直角坐标系,利用两个平面的法向量来求得它们夹角的余弦值的取值范围. 【试题解析】证明：（Ⅰ），由AC=BC ，AE=BE ，知CE⊥AB， 又平面ABC⊥平面ABB 1A 1，所以CE⊥平面ABB 1A 1而AD ⊂平面ABB 1A 1，∴AD⊥CE，又AD⊥A 1C 所以AD⊥平面A 1CE ， 所以AD⊥A 1E ．易知此时D 为BB 1的中点，故BD=1．（Ⅱ）以E 为原点，EB 为x 轴，EC 为y 轴， 过E 作垂直于平面ABC 的垂线为z 轴， 建立空间直角坐标系，设 BD=t ，则A （-1，0，0），D （1，0，t ），C 1（032），AD =（2，0，t ），1AC =（13，2），设平面ADC 1的法向量n =（x ，y ，z ）， 则1·20·320n AD x tz n AC x z ⎧=+=⎪⎨=++=⎪⎩，取x=1，得21,33n t t ⎛⎫=- ⎪⎝⎭， 平面ABC 的法向量m =（0，0，1），设平面ADC 1与平面ABC 的夹角为θ，∴cosθ=··m n m n=222414133tt t⎛⎫+-+ ⎪⎝⎭2327t t -+()2316t -+由于t∈（0,2）,故cosθ∈（217，22]． 即平面ADC 1与平面ABC 的夹角的余弦值的取值范围为（217，22]． 19.某学校共有1000名学生，其中男生400人，为了解该校学生在学校的月消费情况，采取分层抽样随机抽取了100名学生进行调查，月消费金额分布在450~950之间．根据调查的结果绘制的学生在校月消费金额的频率分布直方图如图所示：将月消费金额不低于750元的学生称为“高消费群”．（1）求a 的值，并估计该校学生月消费金额的平均数（同一组中的数据用该组区间的中点值作代表）； （2）现采用分层抽样的方式从月消费金额落在[550,650)，[750,850)内的两组学生中抽取10人，再从这10人中随机抽取3人，记被抽取的3名学生中属于“高消费群”的学生人数为随机变量X ，求X 的分布列及数学期望；（3）若样本中属于“高消费群”的女生有10人，完成下列22⨯列联表，并判断是否有97.5%的把握认为该校学生属于“高消费群”与“性别”有关？（参考公式：22()()()()()n ad bc K a b c d a c b d -=++++，其中n a b c d =+++）【答案】（1）0.0035a =，平均数：670元；（2）分布列见解析，9()10E X =；（3）列联表见解析，有． 【解析】 【分析】（1）根据频率和为1，列方程解出a 的值，再由频率分布直方图求样本平均数，即可得解；（2）由题意可知随机变量X 服从超几何分布，确定X 的取值，求出对应概率，可得X 的分布列，再计算数学期望即可；（3）由题可知，样本中男生40人，女生60人，属于“高消费群”的25人，由此完成列联表，并由公式计算2K ，查表判断即可.【详解】（1）由题意知，100(0.00150.00250.00150.001)1a ++++=， 解得0.0035a =，样本的平均数为：5000.156000.357000.258000.159000.10670x =⨯+⨯+⨯+⨯+⨯=（元）， 所以估计该校学生月消费金额的平均数为670元．（2）由题意，从[550,650)中抽取7人，从[750,850)中抽取3人． 随机变量X 的所有可能取值有0，1，2，3，()337310k kC C P X k C -==（0,1,2,3k =）， 所以，随机变量X 的分布列为随机变量X 的数学期望35632119()012312012012012010E X =⨯+⨯+⨯+⨯=． （3）由题可知，样本中男生40人，女生60人，属于“高消费群”的25人，其中女生10人； 得出以下22⨯列联表：222()100(10251550)505.556 5.024()()()()406025759n ad bc K a b c d a c b d -⨯⨯-⨯===≈>++++⨯⨯⨯，所以有97.5%的把握认为该校学生属于“高消费群”与“性别”有关．【点睛】本题考查了频率分布直方图、离散型随机变量的分布列、列联表以及独立检验的应用，考查了计算能力与数据分析能力，属于中档题.20.已知椭圆2222:1(0)x y C a b a b+=>>的两个焦点与短轴的一个端点连线构成等边三角形，且椭圆C 的短轴长为23（1）求椭圆C 的标准方程；（2）是否存在过点()0,2P 的直线l 与椭圆C 相交于不同的两点,M N ，且满足2OM ON ⋅=（O 为坐标原点）若存在，求出直线l 的方程；若不存在，请说明理由．【答案】(1)22143x y +=；(2)答案见解析.【解析】试题分析：（1）根据椭圆的几何意义，22222b a c a b c ⎧=⎪=⎨⎪=+⎩得到椭圆方程；（2）联立直线和椭圆，得到二次方程，向量坐标化得到221612234k k -=+，进而求得参数值．解析：（1）由题意得：22222b a c a b c ⎧=⎪=⎨⎪=+⎩，解得2a b =⎧⎪⎨=⎪⎩∴椭圆C 的标准方程是22143x y +=（2）当直线l的斜率不存在时，(M，(0,N3OM ON ⋅=-，不符合题意当直线l 的斜率存在时，设直线l 的方程为2y kx =+，()11,M x y ，()22,N x y由221432x y y kx ⎧+=⎪⎨⎪=+⎩消y 整理得：()22341640k x kx +++= ()()221616340k k ∆=-+>，解得12k <-或12k >1221634k x x k +=-+，122434x x k=+ ∴1212OM ON x x y y ⋅=+= ()()21212124kx xk x x ++++()222222413216124343434k k k k k k +-=-+=+++∵2OM ON ⋅= ∴221612234k k-=+解得2k =±，满足0∆>所以存在符合题意的直线，其方程为2k x =+ 点睛：本题主要考查直线与圆锥曲线位置关系，所使用方法为韦达定理法：因直线的方程是一次的，圆锥曲线的方程是二次的，故直线与圆锥曲线的问题常转化为方程组关系问题，最终转化为一元二次方程问题，故用韦达定理及判别式是解决圆锥曲线问题的重点方法之一，尤其是弦中点问题，弦长问题，可用韦达定理直接解决，但应注意不要忽视判别式的作用． 21.已知函数()()21ln f x a x x =-+，a R ∈.（1）当2a =时，求函数()y f x =在点()()1,1P f 处的切线方程；（2）当1a =-时，令函数()()ln 21g x f x x x m =+-++，若函数()g x 在区间1,e e ⎡⎤⎢⎥⎣⎦上有两个零点，求实数m 的取值范围.【答案】（1）切线方程为1y x =-；（2）实数m 的取值范围是211,2e ⎛⎤+ ⎥⎝⎦. 【解析】【试题分析】（1）当2a =时，求出切点和斜率，利用直线方程点斜式可求得切线方程.（2）先化简得到()22ln g x x x m =-+.利用导数求得其最小值为()g e ，由此得到()g x 在区间1,e e ⎡⎤⎢⎥⎣⎦上有两个零点的条件是()21101120g m g m e e ⎧=->⎪⎨⎛⎫=--≤ ⎪⎪⎝⎭⎩，解这个不等式求得m 的范围. 【试题解析】（1）当2a =时，()()221ln f x x x =-+ 224ln 2x x x =-++. 当1x =时，()10f =，所以点()()1,1P f 为()1,0P ， 又()1'44f x x x=-+，因此()'11k f ==. 因此所求切线方程为()0111y x y x -=⨯-⇒=-. （2）当1a =-时，()22ln g x x x m =-+，则()()()2112'2x x g x x x x-+-=-=.因为1,x e e ⎡⎤∈⎢⎥⎣⎦，所以当()'0g x =时，1x =，且当11x e<<时，()'0g x >；当1x e <<时，()'0g x <； 故()g x 在1x =处取得极大值也即最大值()11g m =-. 又2112g m e e⎛⎫=--⎪⎝⎭，()22g e m e =+-， ()221122g e g m e m e e ⎛⎫-=+--++ ⎪⎝⎭24e =-+ 210e <，则()1g e g e ⎛⎫< ⎪⎝⎭，所以()g x 在区间1,e e⎡⎤⎢⎥⎣⎦上的最小值为()g e ，故()g x 在区间1,e e ⎡⎤⎢⎥⎣⎦上有两个零点的条件是()21101120g m g m e e ⎧=->⎪⎨⎛⎫=--≤ ⎪⎪⎝⎭⎩ 2112m e ⇒<≤+， 所以实数m 的取值范围是211,2e ⎛⎤+ ⎥⎝⎦. 【点睛】本题主要考查函数导数与切线，考查函数导数与零点问题，考查化归与转化的数学思想方法.第一问要求函数在某一点的切线方程，只需求出切点和斜率，利用点斜式即可求得对应的切线方程.第二问利用导数研究()g x 图像得到其最小值后列不等式组来求m 的取值范围. 22.在直角坐标系xOy 中，曲线C 的参数方程为2cos ,22sin x y αα=⎧⎨=+⎩（α为参数），以坐标原点为极点，x 轴的正半轴为极轴建立极坐标系，已知曲线M 的极坐标方程为2sin 23202πρθθ⎛⎫=<< ⎪⎝⎭. （1）求曲线C 的极坐标方程；（2）已知β为锐角，直线():l R θβρ=∈与曲线C 的交点为A （异于极点），l 与曲线M 的交点为B ，若OA OB ⋅=，求l 的直角坐标方程. 【答案】(1) 4sin ρθ= ；(2) 2y x = 【解析】【分析】(1)先消去参数α，得到曲线C 的普通方程，再化成极坐标方程；(2)由题意知，直线l 是过原点的，所以求出l 的斜率k 或tan β的值即可写出l 的方程. 【详解】解：（1）由题意知曲线C 的直角坐标方程为()2224x y +-=， 即224x y y +=， 所以24sin ρρθ=，即4sin ρθ=，故曲线C 的极坐标方程为4sin ρθ=. （2）因为曲线M 的极坐标方程为2sin 23202πρθθ⎛⎫=<<⎪⎝⎭，所以ρ=将θβ=代入，得OB =因为曲线C 的极坐标方程为4sin ρθ=，所以4sin OA β=所以OA OB ⋅===则tan 2β=，故l 的直角坐标方程为2y x =【点睛】设P 为平面上一点，其直角坐标为(),x y ，极坐标为(),ρθ，则cos x ρθ=，sin y ρθ=，()222+x y OP ρρ==，()tan 0yx x θ=≠． 23.已知函数()()120f x x a x a a=+-->. （1）当1a =时，解不等式()1f x ≤-；（2）若不等式()3f x ≤恒成立，求实数a 的取值范围. 【答案】（1）(,1]-∞-.（2）1,12⎡⎤⎢⎥⎣⎦【解析】 【分析】（1）()()120f x x a x a a=+-->，当1a =，()1f x ≤-，可得|2||1|1x x +--≤-，即可求得答案； （2）由()3f x ≤，可得111||2||||22x a x x a x a a a a+--≤+-+=+，结合已知，即可求得答案. 【详解】（1）()()120f x x a x a a=+--> 当1a =，()1f x ≤- 可得|2||1|1x x +--≤-若2x -≤则2(1)1x x ----≤-， 即31-≤-，显然成立若21x -<<，2(1)1,x x +--≤- 可得22x ≤-，故1x ≤- 若1x ≥，2(1)1,x x +--≤- 可得31≤-，显然不成立. 综上所述，(,1]x ∈-∞- （2）()3f x ≤∴111||2||||22x a x x a x a a a a+--≤+-+=+ 1112|2|2a x a x a a a a∴--≤+--≤+ 要保证不等式()3f x ≤恒成立，只需保证123a a+≤， 解得112a ≤≤ 综上所述，1,12a ⎡⎤∈⎢⎥⎣⎦【点睛】本题主要考查了求解带绝对值不等和根据不等式恒成立求参数，解题关键是掌握带绝对值不等式和不等式恒成立求参数范围的解法，考查了分析能力和计算能力,属于中档题.。
甘肃省武威六中高三第二次诊断考试(英语).doc
甘肃省武威六中高三第二次诊断考试英语本试卷分为第一卷（选择题）和第二卷（非选择题）两部分.满分150分，考试用时1.考试结束，将答题纸交回。
第一卷第一部分：英语知识运用（共三节, 满分50分）第一节：语音知识（共5小题；每小题1分，满分5分）从A、B、C、D四个选项中，找出其划线部分与所给单词的划线部分读音相同的选项.1. accurate A. rate B. rat C. racial D. summarize2. admire A. quiet B. bear C. stare D. fair3. clear A. dear B. learn C. pear D. heart4. limited A. improved B. washed C. nodded D. explained5.existence A. exact B. experiment C. explanation D. exploration第二节语法和词汇知识（共15小题；每小题1分，满分15分）6. Johnson is an honest businessman. Our company and his have had a lot of ______ in the past few years.A. agreementsB. salesC. dealsD. bargains7. –I don’t feel like going out. Why don’t we just stay home and watch TV instead?-- ____ You promised to take me out for dinner and to the theatre on my birthday.A. Great!B. Why me!C. Come on!D. Not at all!8. — How do you find your new classmates.— Most of them are kind, but ________ is so good to me as Brice.A. noneB. no oneC. every oneD. some one9. But for your timely help, the boy ______ his life.A. must have lostB. may loseC. might have lostD. should lose10. — What do you think about _________ dress in the shop window?—Oh, it’s beautifu l. You may give it to Linda as _________ birthday present.A. a; aB. the; aC. a; theD. the; the11. — Do you know Jim quarreled with his mother?—I don’t know. _____.A. Nor don’t I careB. Nor do I careC. I don’t car e neitherD. I don’t care also12. — Why are you staring at me?— You look stupid! The way you wear is _____ annoys me most.A. whichB. whereC. howD. what13. ______the two designs, and you will find what problem there is with yours.A. ComparingB. ComparedC. To compareD. Compare14. When ______ comes to golf, I know nothing and I have no interest in it.A. thisB. thatC. itD. one15. ____ three times in a row, the boxer decided to give up fighting.A. Having defeatedB. To have defeatedC. Having been defeatedD. To have been defeated16. It is firmly believed that quarrels between husband and wife never settle anything .sometimes it may________divorce.A. runs intoB. results fromC. results inD. starts with17. _______ what his parents think, he is leaving home for a new job in a big city.A. Regardless ofB. Instead ofC. In terms ofD. Lack of18. Tom’s boss told Tome that if he worked hard, he _____ have a rise.A. mayB. ought toC. canD. shall19. China is known ______ greatly in terms of its cultural values over the past few years.A. to changeB. having changedC. changingD. to have changedEven though you offered ______ I have just offered ,I would not sell it to you.A. the money twice thatB. twice the money thatC. twice the money whatD. the money that twice第三节完形填空（；每小题1．5分，满分30分）阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项．One afternoon I toured an art museum while waiting for my husband to finish a business meeting. I was looking forward to a quiet 21 of the splendid artwork.A young 22 viewing the paintings ahead of me 23 nonstop between themselves. I watched thema mom ent and decided the lady was doing all the talking. I admired the man’s 24 for putting up with her25 stream of words. 26 by their noise, I moved on.I met them several times as I moved 27 the various rooms of art. Each time I heard her continuous flow of words, I moved away 28 .I was standing at the counter of the museum gift shop making a 29 when the couple approached the30 . Before they left, the man 31 into his pocket and pulled out a white object. He 32 it into a long stick and then 33 his way into the coatroom to get his wife’s jacket.“He’s a 34 man,” the clerk at the counter said. “Most of us would give up if we were blinded at such a young age. During his recovery, he made a promise his life wouldn’t cha nge. So, as before, he and his wife come in 35 there is a new art show.”“But what does he get out of the art?” I asked. “He can’t see.”“Can’t see! You’re 36 . He sees a lot. More than you and I do,” the clerk said. “His wife 37 each painting so he can see it in his head.”I learned something about patience, 38 and love that day. I saw the patience of a young wife describing paintings to a person without 39 and the courage of a husband who would not 40 blindness to change his life. And I saw the love shared by two people as I watched this couple walk away, their arms intertwined.21 A. view B. touch C. wander D. stare22. A. lady B. couple C. man D. clerk23. A. yelled B. argued C. screamed D. chatted24. A. attempt B. independence C. patience D. wisdom25. A. constant B. vivid C. casual D. vague26. A. Adopted B. Adapted C. Disturbed D. Conducted27. A. from B. to C. towards D. through28. A. anxiously B. quickly C. urgently D. sensibly29. A. comment B. purchase C. decision D. profit30. A. exit B. entrance C. front D. queue31. A. plugged B. reached C. held D. bent32. A. lengthened B. made C. brought D. broadened33. A. led B. found C. tapped D. forced34. A. generous B. rough C. smart D. brave35. A. wherever B. whatever C. whenever D. whichever36. A. unique B. silly C. equal D. wrong37. A. decorates B. draws C. shows D. describes38. A. kindness B. pride C. courage D. enthusiasm39. A. sight B. support C. expectation D. confidence40. A. get B. allow C. hope D. cause第二部分：阅读理解（共25小题；第一节每小题2分，第二节每小题1分；满分45分）第一节阅读下列短文，阅读下列五篇短文，从每小题后所给的A、B、C、D四个选项中，选出最佳选项。
高三英语月考试题及答案-武威六中届高三第二次诊断考试7
本试题共分第Ⅰ卷（115分）和第Ⅱ卷（35分），共150分，考试时间120分钟。
请将所有答案写在答题卡上。
第Ⅰ卷（选择题）第一部分：听力(共两节，每小题1.5分，满分30分)做题时，先将答案标在试卷上。
录音内容结束后，你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节: 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.Why didn’t t he man recognize the woman?A. She has long hair now.B. She lost some weight.C. She is wearing a lot of make-up.2. What is the woman doing?A. Trying to go to sleep.B. Learning how to sing.C. Writing a paper.3. Which department did the man use to work in?A. The Finance Department.B. The Marketing Department .C. The Sales Department.4. What will the man do after graduation?A. Study abroad.B. Get a job.C. Stay at home.5. How does the man usually go to work?A. By bus.B. By subway.C. On foot.第二节：听下面5段对话或独白。
每段对话或独白后有几个小题，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，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。