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2024年1月浙江省高考英语仿真模拟卷03(参考答案)

2024年1月浙江省高考英语仿真模拟卷03(参考答案)

2024年1月浙江省高考英语仿真模拟试卷03参考答案1.【答案】B【原文】W: You look tired and sleepy. Do you have trouble falling asleep?M: No, I had to finish the paper for history class from 9:00 last night to 2:00 in the morning, because I didn’t remember it until I finished watching TV.2. 【答案】A【原文】M: Anna, please don’t be angry with me. I lost your book about machines in the future. I’m sorry.W: Oh, I’m not fine with that. The writer signed that book for me.3.【答案】C【原文】W: It’s very nice of you to invite me.M: I’m very glad you could e, Ms Liu. Will you take a seat at the head of the table? It’s an informal dinner. Ms Liu, would you like to have some chicken which is famous here?4. 【答案】A【原文】M: Are you ready for the exam?W: Hopefully, yeah. I don’t want to sound too confident, but I’ve read the whole book severaltimes. I’m sure the result won’t let me down.M: Yeah, I don’t think you’ve got anything to worry about.5. 【答案】B【原文】W: Are they closed already? I really need a certain book.M: Yes. They close at five on Fridays. And they are closed on weekends, too. The earliest you can get it now will be Monday morning.听下面一段较长对话,回答以下小题。

六级听力模拟03

六级听力模拟03

六级听力模拟03 Section A11.A.The man had better stop taking the cough medicine.B.The man will take another medicine instead of this.C.The man should have patience to cure his cough.D.The man should take the medicine for a long time.12.A.She cannot finish her work.B.She will data her friend on the evening of 28th April.C.She wants to avoid the crowd in the Huangshan resort.D.She will have an important visitor.13.A.They are boiling a cup of water. B.They are strring a cup of mud.C.They are cooking sweet and sour rice.D.They are writing down the recipe.14.A.She has half finished filling out the form. B.She doesn't remember to fill out the form.C.She is glad that the man might help her.D.She feels frustrated about filling out the form.15.A.He went mountain climbing last year. B.He hasn't traveled around the wolrd yet.C.He's always wanted to climb that mountain.D.He definitely does not want to go.16.A.They had better finish the project as soon as possible.B.They had better try their luck to finish the project.C.They are so lucky to have the project being put off.D.They had better have a risk to extend the project.17.A.The woman is examining some old houses.B.The woman is going to rent the house .C.The woman is discussing the house condition with her colleagues.D.The woman tells the man to change the wiring.18.A.She thinks her pay for the job is too low.B.She believes she could be promoted as a manager.C.She thinks her job can't make full use of her ablities.D.She thinks what she learned is useless.Questions 19 to 21 are based on the conversation you have just heard.19.A.Advantages of TV shopping. B.Their favorite TV channels.C.Beware of advertising on TV.D.Popularity of advertised products.20.A.It designed some powerful slogan to stimulate consumers.B.It used some scientifit method to creat some false images.C.It invited a boy to eat the hamburger with hearty content.D.It asked a family with kids to enjoy their hamburger happily.21.A.The consumers. B.the TV station. C.The company. D.The audience.Questions 22 to 25 are based on the conversation you have just heard.22.A.The pleasure derived from gardening.B. How to grow an amazing garden.C.How to choose a good location for a garden.D.How to succeed in growing many plants in a small garden.23.A.From her parents B.Through a gardening magazine.C.By attending a class.D.By self-study.24.A.The soil of the garden should be of high quality.B.The garden should occupy a large area.C.There should be lots of plants in the garden.D.The position of the garden should be good.25.A.To save space. B.To help the plants grow healthily.C.To make plants yield more fruits.D.To water the plants easily.Section BPassage One Questions 26 to 28 are based on the passage you have just heard.26.A.Development of industry. B.Heathy life.C.The future of childrenD.Clean air.27.A.Because man has a strong desire for a modern way of life.B.Because people pay no attention to it.C.Because people from the coutryside rush into the cities.D.Because people are not aware of the benefits of our modern society.28.A.Man konws where the society is going.B.People don't welcome the rapid development of our modern society.C.The speaker is worried about the future of our modern society.D.Man can do nothing about the problem of pollution.Passage Two Questions 29 to 31 are based on the passage you have just heard.29.A.Railway workers. B.A robot. C.A computer. D.A machine.30.A.The workers on the underground platforms were replaced by machines.B.It become the first completely automatic railway in the world.C.A completely automatic line was added to its network.puter began controlling the trains on the line.31.A.To drive the train after it is started automatically.B.To start the train and drive it when necessary.C.To take care of the passengers in the train.D.To send commanding signals to the command spot.Passage Three Questions 32 to 35 are based on the passage you have just heard.32.A.The engine of their boat stopped working. B.The were attacked by thunderstorm.C.They ran out of oil.D.They ran out of food.33.A.Wave their hands. B.Shout and cried. C.Wave their shirts. D.Made a fire.34.A.To search for the missing people. B.To investigate a fire on one of the islands.C.To look for the missing woman.D.To rescue the British soldiers.35.A.The residents. B.The passers. C.The soldiers. D.The police.Section CThe family in Britain is changing.The once typical British family headed by two parents has (36)_____ substantial changes during the twentieth century.In particular there has been a rise in the number of single-person households,which (37)_____from 18 to 29 percent of all households between 1971 and 2002.By the year 2020, it is (38)_____that there will be more single peoplethan (39)_____ people.Fifty years ago this would have been socially (40)_____ in Britain. In the past, people got married and stayed married.(41)_____was very difficult, expensive and took a long time.Today, people’s views on marriage are changing. Many (42)_____,mostly in their twenties or thirties,live together without getting married.Only about 60% of these couples will (43)_____ get married. In the past, people married before they had children,but now about 40% of children in Britain are born to unmarried parents.In 2000, (44)___________ _____ _____ _.Before 1960 this was very unusual.People are generally getting married at a later age now and many women do not want to have children immediately.(45)__________ _________ _.The number of single-parent families is increasing.This is mainly due to more marriages ending in divorce,(46)_________________ ___.参考答案:Section A11.C 12.D 13.C 14.D 15.D 16.A 17.B 18.C 19.C 20.D 21.C 22.B 23.C 24.D 25.ASection B26.A 27.A 28.C 29.D 30.C 31.B 32.A 33.D 34.A 35.DSection C36.undergone 37.increased 38.estimated 39.married40.unacceptable 41.Divorce 42.couples 43.eventually44.around a quarter of unmarried people between the ages of 16 and 59 were living together inGreat Britain45.They prefer to concentrate on their jobs and put off having a baby until their late thirties46.but some women are also choosing to have children as a single-parent without being married听力材料:11. M: Doctor, this cough medicine doesn’t seem to be helping.Can you give me a differentprescription?W: Let’s give it another day or two and see how you are doing then.Q: What does the doctor imply?12. M: The first week in May is an official holiday. Shall we go climbing Huangshan for ourholidays? We could leave on the morning of April 28th to avoid the crowd.W: I’d rather leave on April 29th. My grandpa will drop in on the evening of April 28th.Q: Why cannot the woman leave for Huangshan on the morning of April 28th?13. M: OK…done. What is the next step? Oh I remember now that the next step is to add a cup ofboiling water and stir.W: Are you sure we are following the instructions correctly? This looks like sad and soaked mud, not sweet and sour rice.Q: What are the two speakers doing now?14. M: Have you filled out your application forms yet?W: Don’t remind me of them!They’re so confusing that I’m discouraged before I start!Q: What does the woman imply?15. W: Would you like to climb the mountains with us this weekend? It will be very interesting.M: Thanks a lot, but that is the last thing I want to do in the world.Q: What does the man mean?16. W: If Professor Thomas is willing to give us a three-day extension to finish the project, maybehe’ll give us a few more days.M: Let’s not push our luck, Mary. OK?Q: What does the man mean?17. M: You can see that it’s in very good condition. The previous owner was a builder.W: It’s quite an old house. I’m worried about the electrical wiring.Q: What can we learn from the conversation?18. M: Suppose the boss offered to increase your pay by 100% and to promote you as the salesmanager, would you still quit and look for another job?W: Yes. I am determined. I would like to find a job to which my knowledge can be fully applied.Q: Why was the woman determined to quit the current job?Now you’ll hear two long conversations.Conversation OneM: Mind if I switch channels? Those TV commercials are killing me.W: How can you say that? Watch: “Take Toshiba, take the world.” Fantastic!There’s a product you can depend on. A powerful product.M: If I were you, I wouldn’t trust those commercials.W: Now, look at this McDonald’s commercial!Aren’t those li ttle kids cute? Oh, and there’s such a warm family feeling.M: Just how an advertising agency wants you to see McDonald’s.You’re the target audience.When they make TV commercials, they use scientific methods to learn what you’ll like and buy.W: Are you telling me those darling little children biting into Big Macs are part of a scientific project to get me into McDonald’s?M: Advertisers don’t bother with facts any more. Instead they want the end-user, that’s you, to fall in love with their product.W: I see. So what you’re saying is, “Watch out,or commercials will take over your life.”M: Yes, just wake up. Many competitors are spending piles of money to increase their market shares, but only canceling out each other’s efforts and neither would win. What’s more, the extra costs of advertising will certainly be passed on to the customers.W: But anyway the advertising will produce a good image of a product and that leads to consumer brand loyalty. That’s to say, consumers are loyal to a certain product and keep buying it and they’re willing to pay more.M: That’s the problem. More advertising means higher costs to the consumer. So in the end the winner is always the company, not the customer.19. What are they talking about?20. How does McDonald’s adverti se its hamburger?21. Who would be the beneficiary of advertising in the man’s opinion?Conversation TwoM: Hello and welcome to today’s show,Shirley’s Garden.Today, we’ll be interviewing Shirley on her amazing techniques at growing a garden. Thank you for being here, Shirley.W: You’re welcome.M: Shirley, you truly have an amazing garden. Can you tell us how you learned about gardening? W: Well, this spring I took a gardening class. Then I decided to try some of the things I had learned. So I have tried various attempts at gardening and with different degrees of success. M: From the pictures of your garden, I’ve seen all kinds of different vegetables,including cucumbers, tomatoes, strawberries, carrots and so on. Could you let us know how you put these plants together in your garden?W: Well, one of the most important things in gardening is that you choose a good location. You need at least 6 to 8 hours of direct sunshine. Um, you also need to choose a location that has good drainage, and it should be a convenient location. After choosing a good location, I just decided what I wanted to plant, and based on what the final plant would look like, I divided the whole garden into different parts.M: Shirley, I’ve noticed some vertical beams in your garden.I’m truly amazed by them. Could you explain that to us a little bit?W: Well, take cucumbers for instance. Cucumbers take a lot of space when you grow them out on the ground, but I don’t have that much space. So I just grow them up. Just grow them vertically.I just used a metal frame and some strings to allow them to grow up, and they will supportthemselves.M: Well, Shirley, this is truly amazing. Thank you very much for being with us today.W: My pleasure.22. What are the two speakers mainly talking about?23. How did Shirley learn about gardening?24. Which of the following is important to grow a nice garden?25. What is the main purpose of using vertical beams according to Shirley?Section BPassage OneOur environment is being polluted faster than na ture and man’s present efforts can prevent it. Time is bringing us more people, and more people will bring us more industry, more motor vehicles, larger cities, and the growing use of man-made materials. What can explain and solve this problem? The fact is that pollution is caused by man — by his desire for a modern way of life. We make “increasing industrialization” our chief aim. For its sake, we are willing to sacrifice everything: clean air, pure water, good food, our health and the future of our children. There is a constant flow of people from the country into the city, eager for the benefits of modern society. But as our technological achievements have grown in the last twenty years, pollution has become a serious problem. Isn’t it time we stopped to ask ourselves where we are going and why? It reminds one of the story about the airline pilot who told his passengers over the loud speaker: “I have some good news and some bad news. The good news is that we are making rapid progress at 530 miles per hour. The bad news is that we are lost and don’t know where we are going.” The sad fact is that this becomes a true story when applied to our modern society.26. According to the passage, which of the following does the man value most?27. Why has pollution become a serious problem?28. What does the story about the pilot indicate?Passage TwoThe world’s first completely automatic railway has been built under the busy streets of London. The railway is called the Victoria Linem, and it is part of the complete London underground railway. The new Victoria Line was opened in 1969. This new line was very different from the others. The stations on the other lines need a lot of workers to sell tickets, and to check and to collect them when people leave the trains. This is all different on the Victoria Line. Here a machine checks and collects the tickets, and there are no workers on the platforms. On the train,there is only one worker. If necessary,this man can drive the train. But usually he just starts it, and it runs and stops by itself. The trains are controlled by electrical signals which are sent by the so-called “command spots”. The command spots are the same distance apart. Each sends a certain signal. The train always moves at the speed that the command spots allow. If the command spot sends no signals, the train will stop. Most of the control work is done by computers. The computers also fix the train’s speeds, and send the signals to the command spots. Other machines make sure that the trains are always a safe distance apart. 0ne train may stay too long at a station; the other trains will then automatically move slower. So there is no danger of accidents on the line.29. On the Victoria Line, who does all the work of checking and collecting tickets?30. What happened to the London underground railway?31. What is the task of the one worker on the Victoria Line train?Passage ThreeThe 22nd of November 1970 is a day that three British soldiers and an army officer’s wife will remember for a long time. On that day the four of them left in their speedboat to go to the club in Castle Peak Bay. They reached the club without any difficulty. But on their return trip in the evening the motor of their boat broke down. They could not repair it, so they drifted along in the boat. Huge waves kept splashing over the sides of the boat. At last they landed on a small island. One of them described it: “it was just a tiny island with long grass and bushes.” They had no food or water, so two of them walked round the island to see if they could find any. “The only thing we saw was a rat,” said a man later. Meanwhile the other two persons had made a fire with driftwood to attract the attention of any passing boat. Two boats sailed past but did not stop although the men shouted and waved a burning board at them. Back on land the families of the four friends had informed the police when they failed to return home by night. Steamers were sent to search for them as they huddled before their fire, tired and cold. At dawn a motorized boat passed by and spotted them.They reported to the police, who went at once to the island and brought the four persons safely back..32. What happened when they made their return trip?33. How did they try to attract the attention of the passing boats?34. Why did the police send out steamers?35. Who rescued the four persons at last?。

2024年6月上海市秋季高考英语全真模拟试卷03(含答案)

2024年6月上海市秋季高考英语全真模拟试卷03(含答案)

2024年上海市秋季高考英语全真模拟试卷03(考试时间:120分钟试卷满分:140分)I.Listening Comprehension (第1-10题, 每题1分;第11-20题,每题1.5分;共25分)Section ADirections: In Section A, you will hear ten short conversations between two speakers. At the end of each conversation, a question will be asked about what was said. The conversations and the questions will be spoken only once. After you hear a conversation and the question about it, read the four possible answers on your paper, and decide which one is the best answer to the question you have heard.1.A.They are not used to living in hot places.B.They will get away from the hot days.C.They will not be back until it gets cold.D.They are reluctant to go on holiday.2.A.Advertise for a job. B.Find another job through ads.C.Keep the news a secret from his wife. D.Serve at the coffee shop.3.A.He was a firefighter. B.He was excited to get the medal.C.He was responsible for the fire. D.He was very brave.4.A.Doctor and patient. B.Teacher and student.C.Magician and audience. D.Driver and passenger.5.A.Manager and clerk. B.Teacher and student.C.Saleswoman and customer. D.Official and citizen.6.A.She did it out of passion.B.She did it out of necessity.C.She wanted to become a fashion designer.D.She was a successful businesswoman.7.A.She has fixed the computer. B.She has replaced the monitor.C.She has removed the mouse. D.She has given a computer lesson.8.A.She’s excited about her new job.B.She finds the office is too big for her.C.She thinks the work load unbearable.D.She’s not so excited about her new position.9.A.He will be too nervous to make his point.B.He will get up the courage to ask Rite out.C.If he fails to ask Rita out, he will live in fear.D.If he asks Rita out, he will definitely be rejected.10.A.A restaurant. B.A pet shop. C.A parking garage. D.A park.Section BDirections: In Section B, you will hear two short passages and one longer conversation, and you will be asked several questions on each of the short passages and the longer conversation. The short passages and the longer conversation will be read twice, but the questions will be spoken only once. When you hear a question, read the four possible answers on your paper and decide which one is the best answer to the question you have heard.Questions 11 through 13 are based on the following passage.11.A.By offering thanks orally to the loved ones.B.By showing gratefulness on a regular basis.C.By developing good sleeping and eating habits.D.By taking exercise with close friends regularly.12.A.Noticing the positive helps cure eating disorders.B.Practicing gratitude can lengthen your sleep cycle.C.Showing thankfulness contributes to your career promotion.D.Admiring others’ value can improve relationship in workplaces.13.A.It is a blessing that we are valued.B.Extending gratitude has multiple benefits.C.We should stop counting sheep or calories.D.People can learn to be appreciative by heart.Questions 14 through 16 are based on the following passage.14.Why do airports have to look good?A.They represent international significance.B.They need keep up with air travel growth.C.They are symbols of a city’s development.D.They are designed by well-known architects.15.What do airports provide to meet the competition and customer demand?A.Notice of fli ghts’ delay.B.Luxurious departure halls.C.Road and rail connections. D.Nearby shopping areas. 16.Why are airports often located far away from cities?A.Aircraft are noisier than before.B.Aircraft are getting larger in size.C.Aircraft need much space to land and take off.D.Aircraft need regular examination with engines.Questions 17 through 20 are based on the following passage. 17.A.Because she knew a lot of retired teachers.B.Because she wanted to teach classes online.C.Because she knew the program would be influential.D.Because she wanted to help disadvantaged kids learn.18.A.Many Indian children organize their own learning.B.One of the problems facing the school is communication by text. C.Students must stay in the same group when working on a question. D.Children are encouraged to think of their own questions in the project.19.A.That many retired teachers want to join the program.B.That teachers should be good at using modern technology.C.That students play a central role in their learning activities.D.That there are many opportunities in the School in the Cloud.20.A.A TV program. B.An educational project.C.The role of retired teachers. D.New technologies in education.II.Grammar and Vocabulary (每题1分;共20分)Section ADirections: After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.Living a Life Full of Wild AdventuresHelen Skelton was brought up on a remote farm, and her family wasn't full of "runners and rock climbers". However, she has since travelled the world on 21 series of record breaking adventures. The former Blue Peter presenter has kayaked(划皮划艇)down the Amazon River, cycled to the South Pole and done a tightrope walk between the chimneys of Batter-sea Power Station in London. Now, Skelton 22 (share) the secrets of her success in a new book called Wild Girl: How to Have Incredible Outdoor Adventures.23 she's got plenty of stamps in her passport, Skelton says you don't need to go to the Amazon or Antarctica in order to have an adventure - there's plenty to do here in the UK. She grew up in Cumbria, and would go bike-riding and skateboarding with her mum, as well as building rafts. She hopes to pass on these adventures to her own children.Despite the title, Skelton says that the book isn't just for girls. She believes adventure is a leveller - an activity 24 men and women are equal. Adventures 25 also be educational. Skelton says when you're at the mercy of the elements you have to adapt and be flexible, which is a great lesson for life.Of all the places she 26 (be) to, Skelton says the South Pole was particularly hard. "It's like living in a freezer. It's the windiest, driest, coldest place on Earth." Skelton explains, "You can't even put up your tent, which is your only shelter, 27 putting on huge gloves, otherwise you'll get a frostbite. 28 (put) up a tent in oven gloves isn't easy."Her advice to any aspiring adventurers would be to "not worry about 29 comments other peoplemight make. When I said I'm going to kayak the Amazon, people told me that's madness. And, if I had listened to them, I never would have done 30 of it. So just try."Section BDirections: Fill in each blank with a proper word chosen from the box. Each word can be used only once. Note that there is one word more than you need.Young Chinese opera director broadens traditional art form“Chinese opera art is like a huge sponge, constantly absorbing, transforming, merging and flourishing,” says traditional Chinese opera director Li Zhuoqun, who is 31 with creating a market for traditional opera shows in small theaters across China.Performed in 2013, Li Zhuoqun’s first 32 work “Death Do Us Part” is a story 33 from the 14th-century Chinese classic novel “Water Margin”. Li, a graduate of the National Academy of Chinese Theater Arts, says that performing this classic piece for today’s audience is an experiment and a challenge.“We de cided to shorten the divorce scene that lasted four or five days in order to 34 the effect of our vocals and dramatic performances. We also invited modern dancers to work with us. We 35 the performance methods of traditional opera with the r hythm of modern dance.”Li defines her team as “small, deep, refined and broad”. She explained, “‘Small’ in its size, volume and36 . ‘Deep’ refers to our performance and the depth of the script. ‘Refined’ refers to the production of the37 makeup, props, sound and light. ‘Broad’ refers to its 38 and operation.”“We target all ages and a wider audience.” To Li, traditional opera is “the art of regret” due to the unique charm of 39 performances. She aims to allow the audience to enjoy every minute of the show and draw more people to the theater. Li said, “We hope to find a possibility for small theater opera to make a breakthrough in terms of the market and target audience. With the development of aesthetics (审美) and society, our generation needs to 40 a wider and more varied artistic vocabulary into traditional opera. Yet it should still develop on the basis of maintaining the characteristics of traditional opera.”III.Reading Comprehension (共45分。

2023年6月福建省普通高中学业水平合格性考试地理仿真模拟试卷03 解析卷

2023年6月福建省普通高中学业水平合格性考试地理仿真模拟试卷03 解析卷

2023年6月福建省普通高中学业水平合格性考试地理仿真模拟试卷03(答案在最后)学校:___________姓名:___________班级:___________考号:___________考试时间:70分钟一、选择题(每题2分,共50分)某地质考察队在我国某岩层中发现了不同的古生物化石。

读不同古生物化石分布示意图及地壳物质循环示意图,完成下面小题。

1.依据当地岩层新老关系推断a-b-c之间的山地类型可能为()A.背斜山B.向斜山C.断块山D.火山2.该地岩石类型属于右图中的()A.甲B.乙C.丙D.丁【答案】1.A 2.C【解析】1.三叶虫为古生代代表性生物,恐龙为中生代代表性生物,哺乳类动物为新生代代表性生物。

根据岩石新老关系,由a-b-c岩石是中间老,两翼新,故该地质构造是背斜,从地形来看,b处是山地,故该构造地貌是背斜山,A正确,B错误;该山地两侧无明显陡崖,故不是断块山,C错误;该岩石有生物化石,属于沉积岩,故不是火山,D错误。

故选A。

2.由该山地岩石有生物化石,判断其岩石类型属于沉积岩。

据右图,丁有三个箭头指向,乙有一个箭头指向,故乙是岩浆岩,丁是岩浆。

丙经过变质作用形成甲,故甲是变质岩,丙是沉积岩,A、B、D错误,C 正确。

故选C。

【点睛】背斜指的是岩层向上弯曲,主要的判断方法是内老外新,在一水平面上,中间是老岩层,而两边是新岩层。

下图示意我国西北地区某山地土壤构成的纵切剖面。

据此完成下面小题。

3.与山坡主要堆积物角砾相比,冲积扇地区的沙砾堆积物()A.分选性更好B.磨圆度较差C.属于冰碛物D.重力作用形成4.山坡表面的沙、粉沙主要来源于()A.山顶B.山坡C.冲积扇D.冲积平原5.此区域()A.受夏季风影响较大B.地带性植被以落叶阔叶林为主C.山坡水分条件最佳D.春夏季河流常“一日一峰”【答案】3.A 4.C 5.D【解析】3.据图分析可知,冲积扇位于山坡的下方,堆积物以沙砾为主,由流水搬运、沉积而成,有一定的磨圆度,分选性较好;山坡堆积物以角砾为主,分选性较差,大小混杂,磨圆度较差,主要由重力作用形成,海拔较高处可能有冰川作用。

2020年中考数学模拟试卷03含解析 (2)

2020年中考数学模拟试卷03含解析 (2)

2020年中考数学模拟试卷第Ⅰ卷一、选择题(本大题共10小题,每小题3分,共30分.在每小题给出的四个选项中,只有一个选项是符合题目要求的)1.在实数实数0,−√5,√6,﹣2中,最小的是( ) A .0 B .−√5C .√6D .﹣2【答案】B【解析】∵−√5<﹣2<0<√6, ∴所给的数中,最小的数是−√5. 故选B . 2.函数1x y x+=-的自变量取值范围是( ) A .0x > B .0x <C .0x ≠D .1x ≠-【答案】C【解析】当0x ≠时,分式有意义。

即1x y x+=-的自变量取值范围是0x ≠。

故答案为:C3.下列说法正确的是( )A .调查某班学生的身高情况,适采用抽样训查B .对端午节期间市场上粽子质量情况的调查适合采用全面调查C .小南抛掷两次硬币都是正面向上,说明抛掷硬币正面向上的率是1D .“若,m n 互为相反数,则0m n +=”,这一事件是必然事件 【答案】D【解析】A 、调查你所在班级同学的身高,采用普查;B 、调查端午节期间市场上粽子质量情况,采用抽样调查;C 、小南抛掷两次硬币都是正面向上,不能说明抛掷硬币正面向上的率是1;D 、若,m n 互为相反数,则有0m n +=成立,故这一事件是必然事件;故选D . 4.点()2,3A -关于原点对称的点的坐标为( ) A .()2,3 B .()3,2-C .()2,3-D .()3,2-【答案】C【解析】点()2,3A -关于原点对称的点的坐标为()2,3- 故选C.5.如图是一个几何体的三视图,则此几何体是( )A .圆柱B .棱柱C .圆锥D .棱台【答案】A【解析】由于主视图和左视图为正方形可得此几何体为柱体,由俯视图为圆形可得为圆柱.故选A .6.九(1)班有2名升旗手,九(2)班、九(3)班各1名,若从4人中随机抽取2人担任下周的升旗手,则抽取的2人恰巧都来自九(1)班的概率是( )A .34B .23C .25D .16【答案】D【解析】画树状图如下:由树状图知,共有12种等可能结果,其中抽取的2人恰巧都来自九(1)班的有2种结果,所以抽取的2人恰巧都来自九(1)班的概率为21= 126,故选D.7.已知关于x,y的方程组24x y mx y m+=⎧⎨-=⎩的解为3x+2y=14的一个解,那么m的值为( )A.1 B.-1 C.2 D.-2 【答案】C【解析】解方程组24x y mx y m+=⎧⎨-=⎩,得3x my m=⎧⎨=-⎩,把3x m=,y m=-代入3214x y+=得:9214m m-=,2m∴=,故选C.8.在平面直角坐标系中,二次函数y=ax2+bx+c(a≠0)的图象如图所示,现给以下结论:①abc<0;②c+2a<0;③9a﹣3b+c=0;④a﹣b≥m(am+b)(m为实数);⑤4ac﹣b2<0.其中错误结论的个数有()A.1个B.2个C.3个D.4个【答案】A【解析】①由抛物线可知:a >0,c <0,对称轴x =﹣2ba<0, ∴b >0,∴abc <0,故①正确;②由对称轴可知:﹣2ba=﹣1, ∴b =2a ,∵x =1时,y =a+b+c =0, ∴c+3a =0,∴c+2a =﹣3a+2a =﹣a <0,故②正确; ③(1,0)关于x =﹣1的对称点为(﹣3,0), ∴x =﹣3时,y =9a ﹣3b+c =0,故③正确; ④当x =﹣1时,y 的最小值为a ﹣b+c , ∴x =m 时,y =am 2+bm+c , ∴am 2+bm+c ≥a-b+c ,即a ﹣b ≤m (am+b ),故④错误; ⑤抛物线与x 轴有两个交点, ∴△>0, 即b 2﹣4ac >0,∴4ac ﹣b 2<0,故⑤正确;故选A .9.如图,正方形ABCD 的边长为8,M 在DC 上,且DM 2=,N 是AC 上一动点,则DN MN +的最小值为( )A.6 B.8 C.10 D.12 【答案】C【解析】连接BD交AC于O,∵四边形ABCD是正方形,∴AC⊥BD,OD=OB,即D、B关于AC对称,∴DN=BN,连接BM交AC于N,则此时DN+MN最小,∴DN=BN,∴DN+MN=BN+MN=BM,∵四边形ABCD是正方形,∴∠BCD=90°,BC=8,CM=8-2=6,由勾股定理得:=,∴DN+MN的最小值为10,故选C .10.如图,在半径为6的⊙O 中,正六边形ABCDEF 与正方形AGDH 都内接于⊙O ,则图中阴影部分的面积为( )A .27﹣B .C .54﹣D .54【答案】C【解析】设EF 交AH 于M 、交HD 于N ,连接OF 、OE 、MN ,如图所示: 根据题意得:△EFO 是等边三角形,△HMN 是等腰直角三角形, ∴EF =OF =6,∴△EFO 的高为:OF •sin60°=6×2=MN =2(6﹣12﹣∴FM =12(6﹣12+3,∴阴影部分的面积=4S △AFM =4×12(3)×54﹣ 故选C .二、填空题(本大题共6小题,每小题3分,共18分) 11.因式分解:3x 3﹣12x=_____. 【答案】3x (x+2)(x ﹣2) 【解析】3x 3﹣12x =3x (x 2﹣4) =3x (x+2)(x ﹣2), 故答案为3x (x+2)(x ﹣2).12.在学校举行“中国诗词大会”的比赛中,五位评委给选手小明的评分分别为:90,85,90,80,95,这组数据的众数是_____. 【答案】90【解析】这组数据中数据90出现了2次,出现次数最多,所以这组数据的众数为90, 故答案为:90.13.化简2221m m nm n ---的结果是____.【答案】1m n+. 【解析】原式=2()()()()m m n m n m n m n m n +-+-+-=()()m n m n m n -+-=1m n+.故答案为:1m n+14.如图,在▱ABCD中,AB AD=4,将▱ABCD沿AE翻折后,点B恰好与点C重合,则折痕AE的长为_____.【答案】3【解析】∵翻折后点B恰好与点C重合,∴AE⊥BC,BE=CE,∵BC=AD=4,∴BE=2,∴3AE===.故答案为3.15.如图,直线y=12x与双曲线y=kx(k>0,x>0)交于点A,将直线y=12x向上平移2个单位长度后,与y轴交于点C,与双曲线交于点B,若OA=3BC,则k的值为____.【答案】98.【解析】如图,∵将直线y=1x2向上平移2个单位长度后,与y轴交于点C,∴平移后直线的解析式为y=12x+2,如图:分别过点A、B作AD⊥x轴,BE⊥x轴,CF⊥BE于点F,设A(3x,32 x),),∵OA=3BC,BC∥OA,CF∥x轴,∴△BCF∽△AOD,∴CF=13 OD,∵点B在直线y=12x+2上,∴B(x,12x+2),∵点A、B在双曲线y=kx,∴313222x x x x⎛⎫⋅=⋅+⎪⎝⎭,解得x=12,∴111922228k⎛⎫=⨯⨯+=⎪⎝⎭.故答案为:9 816.如图,∠AOC=90°,P为射线OC上任意一点(点P不与点O重合),分别以AO,AP为边在∠AOC的内部作两个等边△AOE和△APQ,连接QE并延长交OP于点F,则∠OEF的度数是_____.【答案】30°【解析】∵△AOE,△APQ都是等边三角形,∴AE=AO,AQ=AP,∠EAO=∠QAP=60°,∴∠QAE=∠PAO,∴△QAE≌△PAO(SAS),∴∠AEQ=∠AOP,∵∠AOP=90°,∴∠AEQ=∠AEF=90°,∵∠AEO=60°,∴∠OEF=30°,故答案为30°.三、解答题(本大题共8小题,共72分.解答应写出文字说明、证明过程或演算步骤)17.(本小题满分8分)解不等式组:3(2)421152x x x x --⎧⎪-+⎨<⎪⎩…. 【解析】3(2)4(1)211(2)52x x x x --⎧⎪-+⎨<⎪⎩… 不等式()1可化为364x x -+≥,解得1x ≤,不等式()2可化为()()22151x x -<+,4255x x -<+,解得7x >-.把解集表示在数轴上为:∴原不等式组的解集为71x -<≤.18.(本小题满分8分)如图,点B 在DC 上,BE 平分∠ABD ,∠ABE =∠C ,求证:BE ∥AC .【解析】∵BE 平分∠ABD,∴∠DBE=∠ABE;∵∠ABE=∠C,∴∠DBE=∠C,∴BE∥AC.19.(本小题满分8分)某服饰公司为我学校七年级学生提供L码、M码、S码三种大小的校服,我校1000名学生购买校服,随机抽查部分订购三种型号校服的人数,得到如图统计图:(1)一共抽查了人;(2)购买L码人数对应的圆心角的度数是;(3)估计该服饰公司要为我校七年级学生准备多少件M码的校服?【解析】(1)本次调查的总人数为22÷22%=100人,故答案为100;(2)购买L码人数对应的扇形的圆心角的度数是360°×30100=108°,故答案为108°;(3)估计该服饰公司要为我校七年级学生准备M码的校服1000×1003022100--=480(件).20.(本小题满分8分)如图,在下列9×9的网格中,横纵坐标均为整数的点叫做格点,例如:A(1,1)、B(8,3)都是格点,E、F为小正方形边的中点,C为AE、BF的延长线的交点.(1)AE的长等于;(2)若点P在线段AC上,点Q在线段BC上,且满足AP=PQ=QB,请在如图示所示的网格中,用无刻度的直尺,画出线段PQ,并直接写出P、Q两点的坐标.=;【解析】(1)AE2(2)如图,AC与网格线相交,得到P,取格点M,连接AM,并延长与BC交于Q,连接PQ,则线段PQ即为所求.故答案为:AC与网格线相交,得到P,取格点M,连接AM,并延长与BC交于Q,连接PQ,则线段PQ即为所求.∴P(3,4),Q(6,6).21.(本小题满分8分)如图1,△ABC是等腰三角形,O是底边BC中点,腰AB与⊙O相切于点D(1)求证:AC是⊙O的切线;(2)如图2,连接CD,若BC的长.【解析】(1)证明:连接OD ,OA ,作OF⊥AC 于F ,如图,∵△ABC 为等腰三角形,O 是底边BC 的中点,∴AO⊥BC,AO 平分∠BAC,∵AB 与⊙O 相切于点D ,∴OD⊥AB,而OF⊥AC,∴OF=OD ,∴AC 是⊙O 的切线;(2)过D 作DF⊥BC 于F ,连接OD ,∵tan∠BCD=4,∴4DF CF设DF a ,OF =x ,则CF =4a ,OC =4a ﹣x ,∵O 是底边BC 中点,∴OB=OC =4a ﹣x ,∴BF=OB﹣OF=4a﹣2x,∵OD⊥AB,∴∠BDO=90°,∴∠BDF+∠FDO=90°,∵DF⊥BC,∴∠DFB=∠OFD=90°,∠FDO+∠D OF=90°,∴∠BDF=∠DOF,∴△DFO∽△BFD,∴BF DFDF FO=,x=,解得:x1=x2=a,∵⊙O∵DF2+FO2=DO2,x)2+x2=)2,∴x1=x2=a=1,∴OC=4a﹣x=3,∴BC=2OC=6.22.(本小题满分10分)某校两次购买足球和篮球的支出情况如表:(2)学校准备给帮扶的贫困学校送足球、篮球共计60个,恰逢市场对两种球的价格进行了调整,足球售价提高了10%,篮球售价降低了10%,如果要求一次性购得这批球的总费用不超过4000元,那么最多可以购买多少个足球?【解析】(1)设购买一个足球需要x元,购买一个篮球的花费需要y元,根据题意,得23310 52500x yx y+=⎧⎨+=⎩,解得:8050 xy=⎧⎨=⎩.答:购买一个足球和一个篮球的花费各需要80和50元;(2)设购买a个足球,根据题意,得:(1+10%)×80a+(1﹣10%)×50(60﹣a)≤4000,解得:a≤1300 43,又∵a为正整数,∴a的最大值为30.答:最多可以购买30个足球.23.(本小题满分10分)如图,正方形ABCD的对角线交于点O,点E在边BC上,BE=1n BC,AE交OB于点F,过点B作AE的垂线BG交OC于点G,连接GE.(1)求证:OF=OG.(2)用含有n的代数式表示tan∠OBG的值.(3)若BF=2,OF=1,∠GEC=90°,直接写出n的值.【解析】(1)∵四边形ABCD是正方形,∴AO=BO,AC⊥BD,∴∠AFO+∠FAO=90°,∵AE⊥BG,∴∠BFE+∠FBG=90°,且∠BFE=∠AFO,∴∠FAO=∠FBG,且OA=OB,∠AOF=∠BOG,∴△AOF≌△BOG(ASA),∴OF=OG;(2)以B为原点,BC所在直线为x轴,AB所在直线为y轴建立平面直角坐标系,∵BE=1n BC,∴设BC=n,则BE=1,∴点A(0,n),点E(1,0),点C坐标(n,0),∴直线AC解析式为:y=﹣x+n,直线AE解析式为:y=﹣nx+n,∵BG⊥AE,∴直线BG的解析式为:y=1nx,∴1nx=﹣x+n,∴x=21nn +,∴点G坐标(21nn+,1nn+),∵点A(0,n),点E(1,0),点C坐标(n,0),∴BO=2n,点O坐标(2n,2n),∴OG=() ()1 21nn-+,∴tan∠OBG=11 OG nOB n-=+;(3)∵OB=OF+BF,BF=2,OF=1,∴OB=3,且OF=OG,OC=OB,BO⊥CO,∴OC=3,OG=1,BC=,∴CG=2,∵∠GEC=90°,∠ACB=45°,∴GE=EC∴BE=BC﹣EC=,∴23 BEBC=,∴BE=23BC=1nBC,∴n=32.24.(本小题满分12分)如图,抛物线y=-x2+bx+c的顶点为C,对称轴为直线x=1,且经过点A(3,-1),与y轴交于点B.(1)求抛物线的解析式;(2)判断△ABC的形状,并说明理由;(3)经过点A的直线交抛物线于点P,交x轴于点Q,若S△OPA=2S△OQA,试求出点P的坐标.【解析】(1)由题意得:()121931bb c⎧-=⎪⨯-⎨⎪-++=-⎩,解得:22bc=⎧⎨=⎩,∴抛物线的解析式为y=-x2+2x+2;(2)∵由y=-x2+2x+2得:当x=0时,y=2,∴B(0,2),由y=-(x-1)2+3得:C(1,3),∵A(3,-1),∴AB,BC,AC∴AB2+BC2=AC2,∴∠ABC=90°,∴△ABC是直角三角形;(3)①如图,当点Q在线段AP上时,过点P作PE⊥x轴于点E,AD⊥x轴于点D ∵S△OPA=2S△OQA,∴PA=2AQ,∴PQ=AQ∵PE∥AD,∴△PQE∽△AQD,∴PEAD=PQAQ=1,∴PE=AD=1∵由-x2+2x+2=1得:x=1,∴P(,1)或(,1),②如图,当点Q在PA延长线上时,过点P作PE⊥x轴于点E,AD⊥x轴于点D ∵S△OPA=2S△OQA,∴PA=2AQ,∴PQ=3AQ∵PE∥AD,∴△PQE∽△AQD,∴PEAD=PQAQ=3,∴PE=3AD=3∵由-x2+2x+2=-3得:x,∴P(,-3),或(,-3),综上可知:点P的坐标为(,1)、(,1)、(,-3)或(,-3).。

2020年7月浙江省普通高中学业水平考试语文仿真模拟试卷03(解析版)

2020年7月浙江省普通高中学业水平考试语文仿真模拟试卷03(解析版)

2020年7月浙江省普通高中学业水平考试语文仿真模拟试卷03选择题部分(48分)一、选择题(本大题共16小题,每小题3分,共48分。

每小题列出的四个备选项中只有一个是符合题目要求的,不选、多选、错选均不得分)1.下列加点字的读音全都正确的一项是()A.依偎.(wēi)悲怆.(chuàng)一掷.千金(zhì)B.坍圮.(pǐ)俨.然(yǎn)玲珑剔.透(tì)C.狭隘.(ài)口供.(gōng)子.然一身(jié)D.跌宕.(dàng)挣.揣(zhēng)命途多舛.(chuǎn)【答案】A【解析】B项,剔tī透;C项,口供gòng;D项,挣揣zhèng。

2.下列句子中没有错别字的一项是()A.近年来,引人关注的夜间旅游正成为热门项目,也成了一些城市亮丽的明片。

B.各部门要让技术对结渠道畅通,形成高效协作模式,更好地服务于精准扶贫。

C.走进活动现场,感受演说者的睿智,领略辩论者弛骋古今、纵横捭阖的风采。

D.科学研究要有咬定青山不放松、坚持不懈的精神,不能浅尝辄止、敷衍了事。

【答案】D【解析】A项,“明片”应为“名片”;B项,“对结渠道”应为“对接渠道”;C项,“弛骋”应为“驰骋”。

3.下列句子中加点的词语运用不恰当的一项是()A.新闻报道对于把握时代脉搏、聆听时代声音、讴歌时代英雄具有得天独厚....的优势。

B.大家习惯了加班加点、熬夜透支,对此都不以为意....,这导致身体过劳现象更加普遍。

C.在竞技场上,要放松心态,专注比赛;一味追求完美,苛求自己,反而..容易背上包袱。

D.每年邻.近.春节的时候,人们如何回家这个难以解决的问题都会摆在铁道部的面前。

【答案】D【解析】A项,“得天独厚”意为独具特殊的优越条件,也指所处的环境特别好,也指人的天赋、机遇非常好。

一般为褒义词。

使用正确。

B项,“不以为意”,不把它放在心上,表示对人、对事抱轻视态度使用正确。

2023年高考数学全真模拟(全国甲卷乙卷通用)理数03答案

2023年高考数学全真模拟(全国甲卷乙卷通用)理数03答案

2023年高考数学全真模拟卷三(全国卷)理科数学(考试时间:120分钟;试卷满分:150分)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第I 卷(选择题)一、单选题(本题共12小题,每小题5分,共60分,在每小题给出的四个选项中,只有一项符合题目要求)1.已知集合{}31A x x =-<,{B y y ==,则A B = ()A .∅B .[)4,+∞C .()2,+∞D .[)0,2【答案】C【分析】根据一元一次不等式可解得集合A ,再根据函数值域求法可求得集合B ,由交集运算即可得出结果.【详解】由题意可得{}2A x x =>,由函数值域可得{}0B y y =≥,所以{}2A B x x ⋂=>.故选:C 2.某班40人一次外语测试的成绩如下表:其中中位数为()A .78B .80C .79D .78和89【答案】C【分析】根据中位数的概念即可求得.【详解】解:由题意得:所有成绩从小到大排列,第二十位是78,第二十一位是80,则中位数为7880792+=.故选:C 3.若复数z 满足()()1i i 4z -+=,其中i 为虚数单位,则z 的虚部为()A .2B .2-C .1D .1-【答案】C【分析】根据复数的除法运算与减法运算得2i z =+,进而根据复数的概念求解即可.【详解】解:由题意可知()()()41i 4i i 2i 1i 1i 1i z +=-=-=+--+,所以,z 的虚部为1.故选:C.4.双曲线22221(0,0)x y a b a b -=>>,焦点到渐近线的距离为1,则双曲线方程为()A .2214y x -=B .2214x y -=C .22123x y -=D .22132x y -=【答案】B【分析】由离心率可得12b a =,从而可得渐近线方程,根据焦点到渐近线的距离为1可得c ,从而可求a ,故可得双曲线的方程.【详解】由题可知c a =,222514b e a =+=,得12b a =,则渐近线方程为20x y ±=,焦点到渐近线的距离为1,1=,可解得c =,所以2a =,由222c a b =+得1b =.所以双曲线方程为2214x y -=.故选:B.5.“天圆地方”观反映了中国古代科学对宇宙的认识,后来发展成为中国传统文化的重要思想.中国古人将琮、璧、圭、璋、璜、琥六种玉制礼器谓之“六瑞”,玉琮内圆外方,表示天和地,中间的穿孔表示天地之间的沟通,可以说是中国古代世界观很好的象征物.下面是一玉琮图及其三视图,设规格如图所示(单位:cm ),则三视图中A ,B 两点在实物中对应的两点在实物玉璧上的最小距离约为()(3π≈ 1.4≈)A .8.4B .9.8C .10.4D .11.2【答案】A【分析】玉琮的中空部分看成一圆柱,A ,B 两点可看成是圆柱轴截面所对应矩形的对角线的端点,将圆柱侧面展开,线段AB 的长就是沿该圆柱表面由A 到B 的最短距离.【详解】本题考查传统文化与圆柱的侧面展开图.由题意,将玉琮的中空部分看成一圆柱,A ,B 两点可看成是圆柱轴截面所对应矩形的对角线的端点,现沿该圆柱表面由A到B ,如图,将圆柱侧面展开,可知()min 8.4AB =≈.故选:A .6.已知定义在R 上的函数()21x mf x -=-(m 为实数)是偶函数,记0.5log 3a =,()2log 5b f =,()c f m =,则a 、b 、c 的大小关系为()A .a b c <<B .a c b<<C .c<a<bD .c b a<<【答案】B【分析】由偶函数的性质可得m 的值,即可得函数()f x 的解析式,分析函数单调性,结合对数的运算性质比较大小.【详解】()21x mf x -=-(m 为实数)是R 上的偶函数,∴()()f x f x -=,即2121x m x m ----=-,∴--=-x m x m ,即()()22x m x m --=-,∴0mx =,则0m =,此时()21xf x =-,0.5log 30a =<,()2log 540b f ==>,()(0)0c f m f ===,则a c b <<.故选:B7.若某一几何体的三视图如图所示,则该几何体是()A .三棱柱B .四棱柱C .五棱柱D .六棱柱【答案】C【分析】根据三视图还原出立体图形即可得到答案.【详解】根据其三视图还原出其立体图形如下图所示,易得其为五棱柱,故选:C.8.已知,a b ∈R ,则“1ab ≥”是“222a b +≥”的()A .充分而不必要条件B .必要而不充分条件C .充分必要条件D .既不充分也不必要条件【答案】A【分析】根据充分条件、必要条件及不等式的性质可得解.【详解】由22||12||||2ab a b a b ≥⇒+≥≥,而222a b +≥不一定能得到1ab ≥,例如,0,2a b ==,所以“1ab ≥”是“222a b +≥”的充分而不必要条件.故选:A 9.已知△ABC 满足22AB BA CA =⋅,则△ABC 的形状为()A .直角三角形B .等边三角形C .等腰直角三角形D .等腰三角形【答案】D【分析】根据已知得到22cos c bc A =,利用正弦定理可求得sin 2sin cos =C B A ,结合三角形内角和为π以及两角和的正弦公式可求得in 0()s A B -=,即可确定三角形形状.【详解】解:根据22AB BA CA =⋅得到:22cos c bc A =,由正弦定理2sin sin b cR B C==,可得2sin 2sin sin cos C B C A =,又C 为三角形的内角,得到sin 0C ≠,可得sin 2sin cos =C B A ,又[]sin sin ()sin()C A B A B π=-+=+,∴sin()sin cos cos sin 2sin cos A B A B A B B A +=+=,即sin cos cos sin 0A B A B -=,∴in 0()s A B -=,且A 和B 都为三角形的内角,∴A B =,则ABC 的形状为等腰三角形.故选:D .10.在新型冠状病毒肺炎疫情联防联控期间,社区有5名医务人员到某学校的高一、高二、高三3个年级协助防控和宣传工作.若每个年级至少分配1名医务人员,则不同的分配方法有()A .25种B .50种C .300种D .150种【答案】D【分析】首先分析将5个人分为三小组且每小组至少有一人,则可能分法有:(2,2,1),(3,1,1)两种情况,每种情况利用分步计数原理计算情况数,最后相加即可.【详解】当5个人分为2,2,1三小组,分别来自3个年级,共有2213531322C C C A 90A ⋅=种;②当5个人分为3,1,1三小组时,分别来自3个年级,共有3113521322C C C A 60A ⋅=种.综上,选法共有9060150+=.故选:D.11.已知函数()2tan sin tan 1xf x x x =++,则下列结论正确的是()A .()f x 在区间ππ,33⎛⎫- ⎪⎝⎭上单调递减B .()f x 在区间π0,2⎛⎫ ⎪⎝⎭上有极小值C .设()()2g x f x =-在区间ππ,22⎛⎫- ⎪⎝⎭上的最大值为M ,最小值为m ,则4M m +=D .()f x 在区间ππ,22⎛⎫- ⎪⎝⎭内有且只有一个零点【答案】D【分析】由商数关系化简函数,结合导数法可得函数性质及图象,即可逐个判断.【详解】因为()22sin tan cos sin sin tan 1sin 1cos xx x f x x x x x x =+=++⎛⎫+ ⎪⎝⎭πsin sin cos π,2x x x x k k ⎛⎫=+≠+∈ ⎪⎝⎭Z ,所以()()()22cos cos 12cos 1cos 1f x x x x x '=+-=-⋅+.当ππ,22x ⎛⎫∈- ⎪⎝⎭时,令()0f x '=,解得π3x =±,则当x 变化时,()f x ',()f x 的变化情况如下表所示.x ππ,23⎛⎫-- ⎪⎝⎭π3-ππ,33⎛⎫- ⎪⎝⎭π3ππ,32⎛⎫ ⎪⎝⎭()f x '-0+0-所以()f x 在区间ππ,22⎛⎫- ⎪⎝⎭上的图象如图所示.对A ,()f x 在区间ππ,33⎛⎫- ⎪⎝⎭上单调递增,A 错;对B ,()f x 在区间π0,2⎛⎫ ⎪⎝⎭上有极大值,无极小值,B 错;对C ,()()2g x f x =-在区间ππ,22⎛⎫- ⎪⎝⎭上的最大值为24M =-,最小值为24m =--,4M m +=-,C 错;对D ,()f x 在区间ππ,22⎛⎫- ⎪⎝⎭内有且只有一个零点,D 对.故选:D.12.已知函数()f x 的定义域为R ,且满足()()110f x f x -+-=,()()8f x f x +=,()11f =,()31f =-,()()21,021,24x a x f x x b x ⎧-++<≤⎪=⎨+-<≤⎪⎩,给出下列结论:①1a =-,3b =-;②()20231f =;③当[]4,6x ∈-时,()0f x <的解集为()()2,02,4- ;④若函数()f x 的图象与直线y mx m =-在y 轴右侧有3个交点,则实数m 的取值范围是111,16264⎛⎫⎛⎫--⋂- ⎪ ⎪⎝⎭⎝⎭.其中正确结论的个数为()A .4B .3C .2D .1【答案】C【分析】由()11f =,()31f =-解出,a b 的值可判断①;由周期和奇偶函数的性质计算()20231f =-可判断②;作出函数()f x 在[]0,4上的图象,根据图象可判断③;讨论当0m >和0m <,方程()mx m f x -=的解的个数可判断④.【详解】因为()()110f x f x -+-=,所以()()f x f x -=-,所以函数()f x 为奇函数,()00f =.因为()()8f x f x +=,所以()f x 的周期为8.又()()21111f a =-++=,所以10a +=,所以1a =-,()3311f b =+-=-,所以3b =-,故①正确.因为,()()()()202325381111f f f f =⨯-=-=-=-,故②错误.易知()()211,0231,24x x f x x x ⎧--+<≤⎪=⎨--<≤⎪⎩,作出函数()f x 在[]0,4上的图象,根据函数()f x 为奇函数,及其周期为8,得到函数()f x 在R 上的图象,如图所示,由()f x 的图象知,当[]4,6x ∈-时,()0f x <的解集为()()2,02,4- ,故③正确.由题意,知直线()1y mx m m x =-=-恒过点()1,0,与函数()f x 的图象在y 轴右侧有3个交点根据图象可知当0m >时,应有51m m ⨯-<,即14m <,且同时满足()mx m f x -=,[]8,10x ∈无解,即当[]8,10x ∈时,()()()108f x x x =--,()()108x x mx m --=-无解,所以Δ0<,解得1616m -<<+所以1164m -<<.当0m <时,应有31m m ⨯->-,即12m >-,且同时满足()mx m f x -=,[]6,8x ∈无解,即当[]6,8x ∈时,()()()68f x x x =--,()()58x x mx m --=-无解,所以Δ0<,解得1212m --<<-+1122m -<<-+综上,1164m -<或1122m -<<-+.故选:C.第II 卷(非选择题)二、填空题(本题共4小题,每小题5分,共20分)13.函数()12f x x x=+在1x =处切线的倾斜角为_______.【答案】45【分析】求导,求出斜率,进而可得倾斜角.【详解】()212f x x '=-+,则()11211f '=-+=,即函数()12f x x x=+在1x =处切线的斜率为1,则倾斜角为45 故答案为:45 14.已知平面向量(2,)a x =-,b = ,且()a b b -⊥,实数x 的值为_____.【答案】【分析】表示出(3,a b x -=- ,其与b =数量积为0,可算得出x .【详解】解:因为(2,)a x =-,b = ,所以(3,a b x -=-又()a b b -⊥,则()30a b b x -⋅=-= 故x =故答案为:15.设1F 、2F 分别为椭圆()222210x y a b a b+=>>的左右焦点,与直线y b =相切的圆2F 交椭圆于点E ,且E 是直线1EF 与圆2F 相切的切点,则椭圆焦距与长轴长之比为________.【答案】3【分析】根据题意可得12EF EF ⊥,利用椭圆性质可得()()22222a b b c -+=,结合222a b c =+,即可求得22c a .【详解】如图所示,连接2EF ,易得12EF EF ⊥,圆2F 的半径r b =,所以2EF b =,而122EF EF a +=,所以12EF a b =-,122F F c =,所以()()22222a b b c -+=,且有222a b c =+,化简可得23a b =,所以()22249a a c =-,所以2259a c =,可得22c a =.故答案为:16.已知函数()ln f x ax x x =-与函数()e 1xg x =-的图象上恰有两对关于x 轴对称的点,则实数a 的取值范围为__________.【答案】(),1e -∞-【分析】图象恰有两对关于x 轴对称的点,即0x ∃>,使得()()f x g x -=,即ln e 1xax x x -+=-有两解,对等式全分离,构造()ln e 1x x x h x x-+=,求导求单调性,求出值域,对图象进行判断,即可得出a 的取值范围.【详解】因为函数()f x 与()g x 的图象上恰有两对关于x 轴对称的点,所以0x >时()()f x g x -=有两解,即ln e 1x ax x x -+=-有两解,所以ln e 1x x x a x-+=有两解,令()ln e 1x x x h x x -+=,则()()()2e 11x x h x x --'=,所以当()0,1x ∈时,()0h x '>,函数()h x 单调递增;当()1,x ∈+∞时,()0h x '<,函数()h x 单调递减,所以()h x 在1x =处取得极大值,(11e h =-,且()0,1x ∈时,()h x 的值域为(),1e -∞-;()1,x ∈+∞时,()h x 的值域为(),1e -∞-,因此ln e 1x x x a x-+=有两解时,实数a 的取值范围为(),1e -∞-.故答案为:(),1e -∞-三、解答题(本题共6小题,共70分,解答应写出文字说明、证明过程或演算步骤.第17~21题为必考题,每个试题考生都必须作答.第22、23题为选考题,考生根据要求作答)(一)必考题:共60分17.已知公差不为0的等差数列{}n a 的前n 项和为n S ,2S 、4S 、55S +成等差数列,且2a 、7a 、22a 成等比数列.(1)求{}n a 的通项公式;(2)若11n n n b a a +=,数列{}n b 的前n 项和为n T ,证明:16n T <.【答案】(1)21n a n =+(2)证明见解析【分析】(1)公式法列方程组解决即可;(2)运用裂项相消解决即可.【详解】(1)由题知,设{}n a 的公差为d ,由题意得42527222250S S S a a a d =++⎧⎪=⎨⎪≠⎩,即11121112(46)(2)(510)5(6)()(21)0a d a d a d a d a d a d d +=++++⎧⎪+=++⎨⎪≠⎩,解得132a d =⎧⎨=⎩,所以1(1)3(1)221n a a n d n n =+-=+-⨯=+,所以{}n a 的通项公式为21n a n =+.(2)证明:由(1)得21n a n =+,所以111111(21)(23)22123n n n b a a n n n n +⎛⎫===- ⎪++++⎝⎭,所以1111111111123557212323236n T n n n ⎛⎫⎛⎫=-+-+⋅⋅⋅+-=-<⎪ ⎪+++⎝⎭⎝⎭.18.为促进新能源汽车的推广,某市逐渐加大充电基础设施的建设,该市统计了近五年新能源汽车充电站的数量(单位:个),得到如下表格:年份编号x 12345年份20162017201820192020新能源汽车充电站数量y /个37104147196226(1)已知可用线性回归模型拟合y 与x 的关系,请用相关系数加以说明;(2)求y 关于x 的线性回归方程,并预测2024年该市新能源汽车充电站的数量.参考数据:51710i i y ==∑,512600i i i x y ==∑,()521149.89i iy y =-=∑ 3.16≈.参考公式:相关系数()()niix x yyr --=∑回归方程ˆˆˆybx a =+中斜率和截距的最小二乘估计公式分别为;()()()121ˆniii nii x x y y b x x ==--=-∑∑,ˆˆay bx =-.【答案】(1)答案见解析;(2)ˆ471yx =+;预测2024年该市新能源汽车充电站的数量为424个.【分析】(1)利用相关系数的计算公式即可得解;(2)先利用已知数据和公式得到y 关于x 的线性回归方程,再将2024年所对应的年份编号代入线性回归方程即可得解.【详解】解:(1)由已知数据得()11234535x =⨯++++=,17101425y =⨯=,()()()2222152101210i i x x=-=-+-+++=∑,()()55115260053142470iii i i i x x yy x y x y ==--=-=-⨯⨯=∑∑,所以4700.993.16149.89r ≈≈⨯.因为y 与x 的相关系数近似为0.9,接近1,说明y 与x 的线性相关程度相当高,从而可以用线性回归模型拟合y 与x 的关系.(2)由(1)得()()()51215470ˆ4710iii ii x x y y bx x ==--===-∑∑,ˆˆ1424731ay bx =-=-⨯=,放所求线性回归方程为ˆ471yx =+.将2024年对应的年份编号9x =代人回归方程得ˆ4791424y=⨯+=,故预测2024年该市新能源汽车充电站的数量为424个.19.如图,在四棱锥P -ABCD 中,AB CD ∥,AB ⊥BC ,122BC CD PA PD AB =====,PC =E 为AB的中点.(1)证明:BD ⊥平面APD ;(2)求平面APD 和平面CEP 的夹角的余弦值.【答案】(1)证明见解析(2)22【分析】(1)已知条件求出AB ,BD ,AD 的长度,勾股定理证得BD AD ⊥,取AD 的中点O ,连接OP ,OC ,有PO AD ⊥,得PO ,勾股定理证得PO OC ⊥,从而PO ⊥平面ABCD ,有BD OP ⊥,所以BD ⊥平面APD .(2)建立空间直角坐标系,求相关点的坐标,求相关向量的坐标,求平面APD 和平面CEP 的一个法向量,利用向量夹角公式求平面APD 和平面CEP 的夹角的余弦值【详解】(1)在直角梯形ABCD 中,易得AB =4,BD =AD =,∴222AD BD AB +=,∴BD ⊥AD .取AD 的中点O ,连接OP ,OC ,易得PO ⊥AD ,PO =,如图所示,在△CDO 中,易得OC ==,又PC =,∴222OC PO PC +=,∴PO ⊥OC ,又PO ⊥AD ,AD OC O = ,,AD OC ⊂平面ABCD ,∴PO ⊥平面ABCD ,BD ⊂平面ABCD ,∴BD ⊥OP ,又BD ⊥AD ,AD OP O ⋂=,,AD OP ⊂平面APD ,∴BD ⊥平面APD .(2)如图,以D 为坐标原点,DA ,DB 所在直线分别为x ,y 轴,过点D 且与PO 平行的直线为z 轴建立空间直角坐标系,则D (0,0,0),()A ,()0,B ,)E,P,()C ,∴(CP =,()CE = ,∵BD ⊥平面APD ,∴平面APD 的一个法向量为()10,1,0n =.设平面CEP 的法向量为()2,,n x y z =u u r,则2200n CP n CE ⎧⋅=⎪⎨⋅=⎪⎩,得00⎧+=⎪⎨=⎪⎩,取y =1,得()20,1,1n = ,∴122cos ,2n n =,∴平面APD 和平面CEP 的夹角的余弦值为22.20.已知抛物线()2:20C x py p =>的焦点为F ,准线为l ,点P 是直线1:2l y x =-上一动点,直线l 与直线1l 交于点Q,QF =(1)求抛物线C 的方程;(2)过点P 作抛物线C 的两条切线,PA PB ,切点为,A B ,且95FA FB -≤⋅≤,求PAB 面积的取值范围.【答案】(1)24x y=(2)⎡⎣【分析】(1)计算2,22p p Q ⎛⎫-- ⎪⎝⎭,0,2p F⎛⎫⎪⎝⎭,根据距离公式计算得到2p =,得到抛物线方程.(2)求导得到导函数,计算切线方程得到AB 的直线方程为()002y y xx +=,联立方程,根据韦达定理得到根与系数的关系,根据向量运算得到034y -≤≤,再计算PAB S =△.【详解】(1)直线1:2l y x =-,当2p y =-时,22p x =-,即2,22p p Q ⎛⎫-- ⎪⎝⎭,0,2p F⎛⎫⎪⎝⎭,则QF ==,解得2p =或25p =-(舍去),故抛物线C 的方程为24x y =.(2)设()11,A x y ,()22,B x y ,()00,P x y ,24x y =,2x y '=,PA 的直线方程为:()1112x y x x y =-+,整理得到()112y y xx +=,同理可得:PB 方程为()222y y xx +=,故()()010*******y y x x y y x x ⎧+=⎪⎨+=⎪⎩,故AB 的直线方程为()002y y xx +=,()00224y y xx x y ⎧+=⎨=⎩,整理得到200240x x x y -+=,12012024 x x x x x y +=⎧⎨=⎩,()()()1122121212,1,11FA FB x y x y x x y y y y ⋅=-⋅-=+-++()02221212221212000216123164x x x x x x x x y x y y +-=+-+=-++=-,09235y -≤-≤,解得034y -≤≤,设P 到AB 的距离为d ,12PABS AB d =⋅=△,034y -≤≤,故[]2044,20y +∈,4,PAB S ⎡∈⎣△21.已知01a <<,函数()1x f x x a -=+,()1log a g x x x =++.(1)若()e e g =,求函数()f x 的极小值;(2)若函数()()y f x g x =-存在唯一的零点,求a 的取值范围.【答案】(1)2(2)1,1e ⎡⎫⎪⎢⎣⎭【分析】(1)由()e e g =可求出1ea =,则()1e xf x x -=+,然后对函数求导,由导数的正负可求出函数的单调区间,从而可求出函数的极小值;(2)令()1log 1x a F x ax -=--(0x >),则()111ln ln x F x xa a x a -⎛⎫'=- ⎪⎝⎭,令()11ln ln x x xaa a ϕ-=-,利用导数可求出其单调区间和最小值,然后分11ln 10ln a a a----≥和10ea <<讨论函数的零点即可.【详解】(1)由()1e e e 1log e e ea g a =⇒++=⇒=,所以()1e x f x x -=+,()11e xf x -'=-,令()01f x x '=⇒=,当1x <时,()0f x '<,当1x >时,()0f x ¢>,所以()f x 在(,1)-∞上递减,在(1,)+∞上递增,所以()f x 的极小值为()12f =;(2)()()1log 1x a f x g x a x --=--,令()1log 1x a F x a x -=--(0x >),()F x 存在唯—的零点,()11111ln ln ln ln x x F x a a xa a x a x a --⎛⎫'=-=- ⎪⎝⎭,令()11ln ln x x xaa a ϕ-=-,()()11ln ln x x a x a a ϕ-'=+,令()10ln x x aϕ'=⇒=-,当10ln x a<<-时,()0x ϕ'<;当1ln x a>-时,()0x ϕ'>,所以()x ϕ在10,ln a ⎛⎫- ⎪⎝⎭上递减,在1,ln a ⎛⎫-+∞ ⎪⎝⎭上递增,所以()11ln min 11ln ln ax a a a ϕϕ--⎛⎫=-=-- ⎪⎝⎭,①若11ln 10ln aa a----≥,即111ln ln ln ln a a a ⎛⎫⎛⎫--≤- ⎪ ⎪⎝⎭⎝⎭,令1ln t a-=,所以()111ln ln 10t t t t t ⎛⎫--≤⇒-+≥ ⎪⎝⎭,所以1t ≥,所以11ln a -≥,即11ea <时,()()min 00x F x ϕ'≥⇒≥,所以()F x 在()0,∞+上递增,注意到()10F =,所以()F x 存在唯一的零点,符合题意②当10e a <<时,()100ln aϕ=->,()min 0x ϕ<,()22213(ln )133ln ln ln a a a a a aϕ-=-=,令22()3(ln )1t a a a =-,10ea <<,则221()3[2(ln )2ln ]6ln (ln 1)t a a a a a a a a a'=+⋅⋅=+,因为10ea <<,所以ln 1a <-,所以()6ln (ln 1)0t a a a a '=+>,所以22()3(ln )1t a a a =-在10,e ⎛⎫⎪⎝⎭上单调递增,所以2221113()3(ln 110e e e e t a t ⎛⎫⎛⎫<=-=-< ⎪ ⎪⎝⎭⎝⎭,所以()22213(ln )133ln 0ln ln a a a a a aϕ-=-=>所以()x ϕ即()F x '在10,ln a ⎛⎫- ⎪⎝⎭和1,ln a ⎛⎫-+∞ ⎪⎝⎭上各有一个零点1x ,2x ,()F x 在()10,x 上递增,()12,x x 上递减,()2,0x 上递增,而()11ln 0ln F a a'=-<,所以121x x <<,()1log 1x a F x a x -=--,当110a x a -<<时,()111log 11(1)0a F a a x a x -------<-=<;当1x a >时,()10log 10a F x a>--=,而()()110F x F >=,()()210F x F <=,所以()F x 在()10,x ,()12,x x 和()2,x +∞上各有一个零点,共3个零点了,舍去.综上,a 的取值范围为1,1e ⎡⎫⎪⎢⎣⎭.(二)选考题:共10分.请考生在第22、23题中任选一题作答.如果多做,则按所做的第一题计分.[选修4-4:坐标系与参数方程]22.在直角坐标系xOy 中,直线l的参数方程为cos sin x t y t αα⎧=⎪⎨=⎪⎩(t 为参数).以坐标原点为极点,x 轴的正半轴为极轴建立坐标系,曲线C 的极坐标方程为2853cos 2ρθ=-,直线l 与曲线C 相交于A ,B两点,)M .(1)求曲线C 的直角坐标方程;(2)若2AM MB =,求直线l 的斜率.【答案】(1)2214x y +=(2)【分析】(1)根据极坐标与直角坐标直角的转化222cos sin x y x y ρθρθρ=⎧⎪=⎨⎪=+⎩,运算求解;(2)联立直线l 的参数方程和曲线C 的直角坐标方程,根据参数的几何意义结合韦达定理运算求解.【详解】(1)∵()()222222288453cos 2cos 4sin 5cos sin 3cos sin ρθθθθθθθ===-++--,则2222cos 4sin 4ρθρθ+=,∴2244x y +=,即2214x y +=,故曲线C 的直角坐标方程为2214x y +=.(2)将直线l的参数方程为cos sin x t y t αα⎧=⎪⎨=⎪⎩(t 为参数)代入曲线C 的直角坐标方程为2214x y +=,得)()22cos sin 14t t αα+=,整理得()()222cos 4sin 10t t ααα++-=,设A ,B 两点所对应的参数为12,t t ,则121222221,cos 4sin cos 4sin t t t t ααααα+=-=-++,∵2AM MB =,则122t t =-,联立1212222cos 4sin t t t t ααα=-⎧⎪⎨+=-⎪+⎩,解得122222cos 4sin cos 4sin t t αααααα⎧=-⎪⎪+⎨⎪=⎪+⎩,将12,t t 代入12221cos 4sin t t αα=-+得2222221cos 4sin cos 4sin cos 4sin αααααααα⎛⎫⎛⎫-=- ⎪⎪ ⎪⎪+++⎝⎭⎝⎭,解得2223tan 4k α==,故直线l的斜率为2±.[选修4-5:不等式选讲]23.已知:()1f x x x m =+--,0m >.(1)若2m =,求不等式()2f x >的解集;(2)()()g x f x x m =--,若()g x 的图象与x 轴围成的三角形面积不大于54,求m 的取值范围.【答案】(1)3,2∞⎛⎫+ ⎪⎝⎭;(2)(]0,8.【分析】(1)利用零点分段法求解出绝对值不等式;(2)先求出()21,312,121,1x m x mg x x m x m x m x -++>⎧⎪=+--≤≤⎨⎪--<-⎩,由()0g x =,解得:122121,3m x m x -=+=,则()21444133m x x m ---==+,由函数单调性得到()()max 1g x g m m ==+,根据函数图象与x 轴围成的三角形面积不大于54,列出方程,求出m 的取值范围.【详解】(1)当2m =时,()3,21221,123,1x f x x x x x x >⎧⎪=+--=--≤≤⎨⎪-<-⎩,当2x >时,()32f x =>成立;当12x -≤≤时,()212f x x =->,则322x <≤;当1x <-时,()32f x =-<不合题意,综上,()2f x >的解集为3,2∞⎛⎫+ ⎪⎝⎭;(2)因为0m >,所以()21,12312,121,1x m x m g x x x m x m x m x m x -++>⎧⎪=+--=+--≤≤⎨⎪--<-⎩,由()0g x =,解得:122121,3m x m x -=+=,则()21444133m x x m ---==+,当1x <-时,()g x 单调递增,当1x m -≤≤时,()g x 单调递增,当x >m 时,()g x 单调递减,所以当x m =时,()g x 取得最大值,()()max 1g x g m m ==+,∴图象与x 轴围成的三角形面积为()()221421154233S m m =⨯+=+≤,解得:108m -≤≤,又0m >,则08m <≤,∴m 的取值范围是(]0,8.。

【中考物理】2023年真题模拟专题练习03 —简单电路(含解析)

【中考物理】2023年真题模拟专题练习03 —简单电路(含解析)

【中考物理】2023年真题试卷模拟专题练习03 —简单电路1.(2022襄阳)小强的课桌上有以下物品,通常情况下属于导体的是( )A. 塑料刻度尺B. 玻璃镜片C. 金属小刀D. 橡皮2.(2022恩施州)小明断开客厅的灯后,到书房去闭合书房的灯进行学习,这两盏灯的连接方式( )A. 一定并联B. 一定串联C. 可能串联D. 无法判断3.(2022湖南常德)用塑料梳子梳头发时,头发容易被梳子“粘”起。

下列现象中“粘”的原因与其相同的是()A. 两个铅柱底面削平挤压后能“粘”在一起B. 干燥的天气里,化纤布料的衣服容易“粘”在身上C. 用湿手拿冰冻的东西,手被粘住了D. 用硬纸片盖住装满水的玻璃杯并倒置,纸片“粘”在杯口4.(2022西藏)图,利用静电喷漆枪给物件上漆,涂料小液滴之间相互排斥,但被物件吸引。

则( )A. 物件一定带负电B. 物件一定不带电C. 小液滴可能不带电D. 小液滴一定带同种电荷5.(2022黑龙江龙东地区)刘宇同学善于思考、积极探究。

一次电学实验课上,在完成老师要求的探究任务后,他把自己文具盒里的部分物品分别接入如图所示电路,其中能使小灯泡发光的是( )A. 塑料尺B. 中性笔芯C. 橡皮D. 铅笔芯6.(2022湖南郴州)如图所示,甲验电器的金属箔片张开,乙验电器的金属箔片闭合。

用绝缘手套选取以下哪种材料连接两验电器的金属球,可以观察到乙验电器的金属箔片张开( )A. 干木条B. 橡胶棒C. 玻璃棒D. 石墨棒7.(2022山东泰安)如图所示,灯泡、串联的电路是( )1L 2LA. B.C. D.8.(2022毕节)喜欢观察的小明发现,教室的投影仪内有一个降温风扇和一个投影灯泡,当闭合投影仪的电源开关S1时,只有风扇工作,再闭合S2时,灯泡和风扇同时工作。

当只闭合S2时,风扇和灯泡都不工作,以下电路设计符合要求的是( )A. B.C. D.9.(2022淄博)为做好疫情常态化防控,打造安全就医环境,很多医院启用了智能门禁系统。

2024-2025学年上学期七年级英语人教版期中模拟考试03(含答案)

2024-2025学年上学期七年级英语人教版期中模拟考试03(含答案)

2024-2025学年上学期七年级英语期中模拟考试03(人教版2024)考试范围:Starter Units 1-Unit 2 考试时间:100分钟总分:120分一、单项选择(每小题1分,共10分)从A、B、C、D四个选项中选出可以填入空白处的最佳答案,并把答题长上对应题目的答案标号涂黑。

1.下列四组中没有按字母表顺序排列的是________.A.DGQ B.KPΖC.BDS D.HPK2.下列哪个选项中与单词name 中字母a的发音相同?A.schoolbag B.cap C.make D.start3.________ name is Paul. ________ studies in Qujiang NO.1 High School.A.He, His B.His, He C.He, Him D.His, Him4.My shirt ________ white and my trousers ________ black.A.is, are B.is, is C.are, is D.are, are5.—What’s this?—________ a pencil.A.He is B.This is C.It is D.That is6.A pair of socks ________ under the chair.A.am B.is C.are D./7.My name is Jack Smith and my friends often ________ me Jack.A.read B.spell C.call D.say8.I don’t ________ a volleyball, but my cousin ________ one.A.has; have B.have; have C.have; has D.has; has9.—Is this _______ eraser, Bob?—No. It is _______.A.you; Tom B.you; Tom’sC.your; Tom D.your; Tom’s10.—________ boxes of milk do you want to buy?—I’d like six.A.How many B.How much C.What color D.How about二、完型填空(每小题1.5分,共15分)根据短文内容,从A、B、C、D四个选项中选出一个能填入相应空格内的最佳答案,并把答题卡上对应题目的答案标号涂黑。

巨量引擎-初级营销师认证-模拟03

巨量引擎-初级营销师认证-模拟03

巨量引擎-初级营销师认证-模拟03-标准化文件发布号:(9456-EUATWK-MWUB-WUNN-INNUL-DDQTY-KII巨量优化师模拟1.关于OCPM的扣费逻辑以下正确的是(每千次展示扣费):[单选题]A.预估点击率*预估转化率*出价B.下一位eCPM+0.01(正确答案)C.预估点击率*预估转化率+0.01D.下一位eCPM+0.022.竞价广告中,广告排序的核心依据是:[单选题]A.点击率B.预估点击率C.转化率D.预估转化率E.出价F.eCPM(正确答案)3.抖音短视频竞价广告,不支持下列哪种计费方式:[单选题]A.CPCB.CPMC.CPV(正确答案)D.OCPME.CPA4.今日头条信息流广告售卖方式的展现优先级,优先展示的广告类型是:[单选题]A.CPMB.CPT(正确答案)C.GDD.以上有机率优先展现5.今日头条文章详情页竞价广告,不支持的广告样式有:[单选题]A.大图B.组图C.小图D.竖版视频(正确答案)6.在广告视频制作中,连接广告主和创作者,能够快速批量生产高质量视频的制作平台是:[单选题]A.即合平台(正确答案)B.即视平台C.易拍APPD.7.下列工具产品中,有效咨询工具可以支持的是:[单选题]A.橙子建站B.云图C.小6客服(正确答案)D.DOU+8.在今日头条APP上投放信息流广告,最不可能使用的工具是:[单选题]A.动态词包B.DOU+(正确答案)C.卡券平台D.创意灵感9.符合飞鱼CRM无效线索返款活动规则的计划转化类型是:[单选题]A.表单提交(正确答案)B.分层表单C.卡券D.智能电话10.CPA计划暂停后,超过3小时后,会被扣费么[单选题]A.会有余量,所以没有转化也会扣费B.不受3小时余量投放策略的限制,只要有转化就会扣费(正确答案)C.只会扣1-3个转化的费用D.不会扣费,会立即暂停11.DOU+GD的展现位置为前多少个视频内[单选题]A.30B.40C.50D.60(正确答案)12.飞鱼CRM的线索池和客户池的区别是[单选题]A.“客户池”是指,比“线索池”更深一层的线索维度,广告主可选择把线索转换为客户,进行客户营销(正确答案)B.广告投放收集到高意向的线索会自动流入客户池C.D.13.星图平台客户合作流程中,以下说法错误的是[单选题]A.官方认证服务商会全程跟进广告主需求B.认证MCN管理达人会辅助达人完成视频任务C.达人、明星个人账号发布视频D.星图视频可以保量(正确答案)14.以下描述说法正确的是:[单选题]A.卡券平台是服务于个人用户的基础营销工具,满足品牌推广、促销活动、内容营销等多种营销诉求。

2023年新高考数学必刷好题仿真模拟卷(新高考专用) 仿真卷03 Word版含解析

2023年新高考数学必刷好题仿真模拟卷(新高考专用) 仿真卷03  Word版含解析

绝密★启用并使用完毕前 测试时间: 年 月 日 时 分—— 时 分仿真卷03本试卷分第Ⅰ卷和第Ⅱ卷两部分,满分150分,考试时间120分钟一、选择题:本题共8小题,每小题5分,共40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.集合}2)(log |{22≤∈=x Z x A 的子集个数为( )。

A 、4B 、8C 、16D 、32 【答案】C【解析】∵}2)(log |{22≤∈=x Z x A ,∴}2121{--=,,,A ,集合A 中有4个元素,∴集合A 有1624=,故选C 。

2.=++ii243( )。

A 、i --2 B 、i +-2 C 、i -2 D 、i +2 【答案】D 【解析】i ii i i i i i +=+=-+-+=++25510)2)(2()2)(43(243,故选D 。

3.斐波那契螺旋线被誉为自然界最完美的“黄金螺旋”,它的画法是:以斐波那契数:1,1,2,3,5,…为边的正方形拼成长方形,然后在每个正方形中画一个圆心角为 90的圆弧,这些圆弧所连起来的弧线就是斐波那契螺旋线。

自然界存在很多斐波拉契螺旋线的图案,例如向日葵、鹦鹉螺等。

下图为该螺旋线的前一部分,如果用接下来的一段圆弧所对应的扇形做圆锥的侧面,则该圆锥的底面半径为( )。

A 、213 B 、813 C 、413 D 、213 【答案】C【解析】由斐波那契数可知,从第3项起,每一个数都是前面两个数的和,∴接下来的底面半径是1385=+,对应的弧长是213π,设圆锥的底面半径为r , ∴2132π=πr ,解得413=r ,故选C 。

4.已知某工艺品的加工需要先由普通技师完成粗加工,再由高级技师完成精加工。

其中粗加工要完成A 、B 、C 、D 四道工序且不分顺序,精加工要完成E 、F 、G 三道工序且E 为F 的前一道工序,则完成该工艺不同的方法有( )。

A 、48种B 、96种C 、112种D 、144种 【答案】A【解析】由题意可知粗加工的四道工序不分顺序,∴共有2444=A 种不同的方法, 精加工中E 为F 的前一道工序,∴E 在F 前且相邻,∴精加工共有2种不同的方法, ∴完成该工艺共有48224=⨯种不同的方法,故选A 。

2021年 四川省普通高中学业水平合格性考试化学仿真模拟卷03(解析版)

2021年 四川省普通高中学业水平合格性考试化学仿真模拟卷03(解析版)

2021年四川省普通高中学业水平合格性考试仿真模拟卷03化 学注意事项:1. 本试卷分单项选择题和非选择题两部分,满分100分,考试时间90分钟。

2. 答题前,考生务必将自己的学校、班级、姓名填写在密封线内,并认真核对。

客观题答案请填写在背面左侧答题栏。

本卷可能用到的相对原子质量:H —1 C —12 N —14 O —16 Na —23 Mg —24 Al —27 Si — 28 S —32 Cl —35.5 Ca —40 Mn —55 Fe —56 I —127第I 卷(选择题 共60分)本部分为所有考生必答题,包括30个小题,每小题2分,共60分。

每小题只有一个选项符合题意。

1.下列物质中,不属于高分子化合物的是 A .油脂 B .纤维素 C .淀粉 D .蛋白质【答案】A【解析】高分子化合物是指那些由众多原子或原子团主要以共价键结合而成的相对分子量在一万以上的化合物,多为高聚物。

蛋白质、淀粉、纤维素都属于高聚物,相对分子质量在一万以上,而油脂的相对分子质量较小,不属于高分子化合物。

答案选A 。

2.N 2O 5中N 元素的化合价为 A .0 B .+1 C .+3 D .+5【答案】D【解析】氧化物中氧元素的化合价为-2价,根据化合物中各元素的化合价的代数和为零,则N 2O 5中N 元素的化合价为+5价,D 选正确。

答案选D 。

3.关于元素周期表中16号元素的说法不正确的是 A .最高正价是+6价 B .最低负价为-2价 C .该元素位于第三周期 D .该元素属于ⅦA 族元素 【答案】D【解析】元素最高正价等于最外层电子数,16号元素的原子最外层有6个电子,所以最高正价是+6价,A 项正确;元素最低负价=最外层电子数-8,16号元素的原子最外层有6个电子,最低负价为-2价,B项正确;16号元素的原子有3个电子层,最外层有6个电子,该元素位于第三周期,C项正确;16号元素的原子最外层有6个电子,该元素属于ⅥA族元素,D项错误。

山东省2024年夏季普通高中学业水平合格考试地理仿真模拟卷03(解析版)

山东省2024年夏季普通高中学业水平合格考试地理仿真模拟卷03(解析版)

山东省2024年夏季普通高中学业水平合格考试地理仿真模拟卷03(本卷满分100分,考试用时90分钟)一、选择题(共25小题,每小题2分,共50分。

每小题只有一个选项符合题目要求)2022年5月在火星执行勘探任务的祝融号火星车,因沙尘天气导致的太阳翼发电能力降低及冬季极低的环境温度主动进入休眠模式,至今未苏醒。

图为祝融号示意图。

据此完成下面小题。

1.祝融号火星车自主唤醒的能量最可能来自()A.燃油发电机B.核燃料电池C.风力发电机D.太阳能电池板2.祝融号火星车与地球的联系可能会受到太阳活动影响,这是因为太阳活动会()A.引发地震活动B.扰动地球电离层C.引发极光现象D.扰动地球磁场长度达到1200千米。

据科学家推测,该地煤炭形成于3亿年前,当时该地为繁茂的原始雨林。

据此完成下面小题。

3.阿巴拉契亚煤田可能形成的年代及煤层中可能发现的化石,搭配正确的是()A.古生代—蕨类植物化石B.中生代—恐龙化石C.新生代—哺乳动物化石D.古生代—鸟类化石4.煤炭形成时期,阿巴拉契亚地区气候较现在()A.暖干B.暖湿C.冷干D.冷湿【答案】3.A4.B【分析】3.根据题干,煤炭形成于3亿年前,当时应为古生代,古生代的代表性植被为蕨类,A正确,中生代恐龙化石、新生代哺乳动物化石比古生代晚,鸟类化石不是古生代的,BCD错误。

故选A。

4.依题意,形成煤炭时植被为原始雨林,为高温多雨的环境;而现在为亚热带季风性湿润气候和温带大陆性气候,故成煤时期气候较现在暖湿,B正确,ACD错误;故选B。

【点睛】晚古生代为蕨类时代,中生代为裸子植物时代,新生代为被子植物时代。

煤电行业曾是大气污染物排放最大的行业,近年来,国家相关部门大力推动煤电行业绿色转型,建成了10.6亿千瓦煤电机组并实现超低排放,占煤电总装机的94%,是世界上最大的清洁煤电体系,绿色转型取得积极成效。

下图示意大气受热过程,完成下面小题。

5.图中大气受热过程()A.①—大气对太阳辐射的削弱作用B.②—晴朗天气比多云天气作用弱C.③—近地面大气的主要热量来源D.⑤—大气对太阳辐射的反射作用6.煤电行业绿色转型取得积极成效,对大气受热过程产生的影响是()A.①增强B.②增强C.④减弱D.⑤减弱【答案】5.B6.D【解析】5.结合图中信息可知,图示①②③④⑤分别表示的是未经大气削弱的太阳辐射、大气的反射作用、被削弱后到达地表的太阳辐射、地面辐射、大气逆辐射,②所示的大气反射作用在多云时较强,④所示的地面辐射是近地面大气主要、直接的热源,B正确,排除ACD。

2022-2023学年第二学期人教版一年级下册期末综合模拟训练卷03(含参考答案)

2022-2023学年第二学期人教版一年级下册期末综合模拟训练卷03(含参考答案)

2022-2023学年第二学期人教版一年级下册期末综合模拟训练卷03 学校:___________姓名:___________班级:___________考号:___________一、填空。

(每空1分,共20分)1.68里有()个十和()个一;5个一和7个十合起来是()。

2.7个一和9个十合起来的数是(),它添上3是()。

与80相邻的两个数是()和()。

3.一个两位数, 十位上的数是5 , 个位上的数是9 , 这个数是( ) 。

4.20加8就是()个十加()个一,最后的结果是()。

5.如图中一共多少钱?一共()元()角。

6.小刚有5元钱,买一个作业本用去1元,买一支铅笔用去1元,买一把小刀用去6角钱,还剩()角钱。

7.一个加数是35,另一个加数是8,这两个数的和是()。

8. 54 连续减9 :54 、()、()、()9.有12 个苹果,每只小熊分3 个,可以分给()只小熊。

10.至少要()个相同的小正方形才能拼成一个大正方形。

二、选择题(每小题2分,共20分)1.比93少7的数是()。

A.100B.96C.862.两个完全一样的三角形一定可以拼成一个()。

A.长方形B.正方形C.平行四边形3.把下面的图形折成一个“ ”,其中数字4对面是数字()。

A.1B.5C.64.下面算式的结果等于七十多的是( ) 。

A.24+30B.72-5C.66+95.红花有89 朵,黄花比红花少得多。

黄花可能有()。

A.88 朵B.25 朵C.90 朵6.图中被盖住的是下面哪一串?()A .B .C .7.6+□<18,□里面最大可以填()。

A.13B.12C.118.小兰看到桌面上的墨水瓶是第()幅图。

9. 50角和5元比,()。

A.50角多B.5元多C.一样多10.皮皮和他的4个下朋友,每人摘8朵纸花,他们一共摘了()朵花。

A. 12B. 32C. 40三.判断题(每题1分,共8分)1.最小的三位数和最大的两位数相差1。

2022年6月福建省普通高中学业水平考试生物仿真模拟试卷03(含答案)

2022年6月福建省普通高中学业水平考试生物仿真模拟试卷03(含答案)

2022年6月福建省普通高中学业水平合格性考试生物仿真模拟试卷03第一部分选择题一、单项选择题:本大题共25小题,每小题2分,在每小题列出的四个选项中,只有一项最符合题意。

1.下图所示是四种不同的生物,下列相关叙述正确的是()。

A.甲和乙的主要区别在于乙具有细胞壁B.丙和丁的主要区别在于丙具有拟核C.甲和丙的主要区别在于甲具有细胞结构D.乙和丁的主要区别在于丁没有核膜2.在“使用高倍显微镜观察几种细胞”实验中,若观察到的细胞位于视野的左上方,欲将其移到视野的中央,载玻片的移动方向是()。

A.右下方B.右上方C.左下方D.左上方3.新鲜菠菜的活细胞内含量最多的化合物是()。

A.无机盐B.水C.脂肪D.核酸4.下列与人们饮食观念相关的叙述中,正确的是()。

A.脂质会使人发胖,不要摄入B.谷物不含糖类,糖尿病患者可放心食用C.食物含有基因,这些DNA片段可被消化分解D.肉类中的蛋白质经油炸、烧烤后,更益于健康5.光合作用的正常进行不能缺少叶绿素。

下列参与构成叶绿素的元素是()。

A.Fe B.Ca C.K D.Mg6.糖类、脂质、蛋白质等有机物构成了细胞生命大厦的基本框架,它们都含有的化学元素是()。

A.C、H、O B.C、H、O、NC.C、H、O、N、P D.C、H、O、N、S7.下列关于核酸的叙述,错误的是()。

A.核酸能够储存与携带遗传信息B.DNA主要分布在细胞核内C.DNA、RNA的基本组成单位都是核苷酸D.新型冠状病毒的遗传物质主要是DNA8.下图中①~④表示某细胞的部分细胞结构示意图。

下列有关叙述错误的是()。

A.①是高尔基体,与细胞分泌物形成有关B.②是中心体,与动物细胞有丝分裂有关C.③是线粒体,是有氧呼吸唯一场所D.④是核糖体,与蛋白质合成有关9.如图表示某植物相邻的3个细胞,其细胞液浓度依次为甲>乙>丙,正确表示它们之间水分子渗透方向的是()。

A.B.C.D.10.如图为细胞质膜结构及物质跨膜运输方式示意图,①~④表示构成膜结构的物质,a~d 表示跨膜运输的物质。

大学信息基础模拟03#

大学信息基础模拟03#

大学信息技术基础模拟一、单选题<每题1分,共60题)1.通常我们说内存为64兆字节,是指内存容量为< 未填)。

错误正确答案:BA.64GBB.64MBC.64KBD.64B2.下列< 未填)键不属于双态转换键。

错误正确答案:CA.CapsLockB.NumLockC.DelD.Ins3.下列字符中,其ASCII码值最大的是< 未填)。

错误正确答案:CA.9B.aC.zD.M4.下列设备中,属于输出设备的是< 未填)。

错误正确答案:AA.打印机B.键盘C.鼠标D.扫描仪5.指令的解释是由电子计算机的< 未填)来执行。

错误正确答案:CA.输入/输出部分B.存储器C.控制器D.算术和逻辑部分6.在计算机运行时,把程序和数据一样存放在内存中,这是1946年由< 未填)错误正确答案:CA.图灵B.布尔C.冯.诺依曼D.爱因斯坦7.十进制数化为二进制数的方法是< 未填)。

错误正确答案:DA.乘2取整法B.除2取整法C.乘2取余法D.除2取余法8.一个完整的计算机系统是由< 未填)组成。

错误正确答案:CA.主机箱,键盘,显示器,打印机B.主机与外部设备C.存储器,运算器,控制器D.硬件系统与软件系统9.微型计算机的发展以< 未填)的发展为特征。

错误正确答案:CA.主机B.软件C.微处理器D.控制器10.个人计算机属于< 未填)。

错误正确答案:DA.小巨型机B.中型机C.小型机D.微型机11.关于高速缓冲存储器Cache的描述,不正确的是< 未填)。

错误正确答案:BA.Cache是介于CPU和内存之间的一种可高速存取信息的芯片B.Cache越大,效率越高C.Cache用于解决CPU和RAM之间冲突问题D.存放在Cache中的数据使用时存在命中率的问题12.与十六进制数(BC>16等值的二进制数是< 未填)。

错误正确答案:BA.10111011B.10111100C.11001100D.1100101113.微机中1字节二进制数据能表示的数量是< 未填)。

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“专转本”统一考试大学语文模拟卷(三)参考答案
一、选择(每题1分,共10分)
1.参考答案:A。

B毁家纾shū难;C霎/时间shà;D拜谒yè。

2.参考答案:D.李斯代表作《谏逐客书》。

3.参考答案:D “两”和“俩”。

“俩”是“两个”的合音。

如:俩人(=两个人)俩馒头(=两个馒头)兄弟俩(=兄弟两个)。

4.参考答案:C.《战国策》,西汉刘向整理编订而成。

5.参考答案:D正确。

A.闻道有先后,术业有专攻。

——韩愈B.海内存知己,天涯若比邻。

——王勃C.清水出芙蓉,天然去雕饰。

——李白D.无意苦争春,一任群芳妒。

——陆游
6.参考答案:D正确。

A.近体诗也叫今体诗,是相对于古体诗而言的格律诗。

B.绝句共四句,每句五字的叫五绝,每句七字的叫七绝,二四句押韵,首句可入韵,也可不入韵,没有对仗要求。

C.律诗共八句,每句五字的叫五律,每句七字的叫七律,偶数句押韵,首句可入韵,也可不入韵。

律诗每两句为一联,分别称为首联、颔联、颈联、尾联,颔联和颈联必须对仗。

7.参考答案:A。

8.参考答案:D埃斯库罗斯
9.参考答案:D东晋
10.参考答案:C孔雀东南飞
二、填空(每题1分,共10分)
1.北宋欧阳修2.王安石3.论证4.史家之绝唱,无韵之离骚5.《林家铺子》6巴金(《爱尔克的灯光》是一篇抒情散文,选自散文集《龙•虎•狗》。

本文通过抒写了作者回故乡时的所忆、所念、所思、所感,控述了所谓“长宜子孙”的封建家庭对年青生命、年青心灵的摧残,表现出巴金对受害者的深深同情,并且由18年后回来时看见的还是一样的情形的观感,显示作者对封建势力的本质及其顽固性的清醒认识。

从而,作者总结出一个真理:财富并不“长宜子孙”,唯一的出路是和旧家庭决裂,年青人应该走出“狭小的家”,“走向广大的世界”,寻求光明的前途。

)7.黄庭坚8.莫使金樽空对月9.何时复西归10.排比
三、阅读理解(共30分)
(一)阅读下面的文字,完成有关问题。

(共15分)
参考答案:1.①村庄的贫困、落后(家乡菜、家乡话、家乡老土的作派),②村庄的照看(村庄人利叔的关照、村庄婚姻、村庄土菜馆的弥补),⑧村庄的器物(竹器、粮食、花卉)。

2.①自认为身子离开了家乡就是离开了村庄,但由于受到村庄长期的影响,从本质上讲并没有离开村庄,因为时时事事与村庄的人、事、物有牵连。

3.虽然出门在外,但仍受到村庄的照看,受到村庄的牵挂。

4.BC
(二)阅读下面的文字,完成有关问题。

(共15分)
参考答案:1.文言实词 C 其:约定。

2.文言虚词C A,而,连词,表并列;B,之,结构助词,的;D,以,介词,因为。

C,其,代词,他、他们、代词,自己。

3.信息筛选D
4.理解分析B “庞涓消灭齐军士卒过半”不对。

5.概括评价B 原文是说孙子、吴起的兵法后世多有称道。

【文言文翻译】
孙膑出生在阿城和鄄城一带,是孙武的后代子孙。

孙膑曾经和庞涓一道学习兵法。

庞涓奉事魏国以后,当上了魏惠王的将军,却知道自己的才能比不上孙膑。

就秘密地把孙膑找来。

孙膑到来,庞涓害怕他比自己贤能,忌恨他,就假借罪名动用刑法砍掉他两只脚,并且在他脸上刺了字,想让他隐藏起来不敢抛头露面。

齐国的使臣来到大梁,孙膑以儿人的身份秘密地会见了齐使,进行游说。

齐国的使臣认为他是个难得的人才,就偷偷地用车把他载回齐国。

齐国将军田忌不仅赏识他而且还像对待客人一样对待他。

十三年后,魏国和赵国联合攻打韩国,韩国向齐国告急。

齐王派田忌率领军队前去救援,径直进军大梁。

魏将庞涓听到这个消息,率师撤离韩国回魏,而齐军已经越过边界向西挺进了。

孙膑对田忌说:“那魏军向来凶悍勇猛,看不起齐兵,齐兵被称作胆小怯懦,善于指挥作战的将领,就要顺着事物发展的趋势加以引导。

兵法上说:“有急行军走百里和敌人争利的,有可能折损上将军;用急行军走五十里和敌人争利的,可能有一半士兵掉队。

命令军队进入魏境先砌十万人做饭的灶,第二天砌五万人做饭的灶,第三天砌三万人做饭的灶。

”庞涓追逐齐军行军三日,特别高兴地说:“我本来就知道齐军胆小怯懦,进入我国境才三天,开小差的就超过了半数啊!”于是放弃了他的步兵,只和他轻装精税的部队,日夜兼程地追击齐军。

孙膑估计他的行程,到傍晚可以赶到马陵。

马陵的道路狭窄,两旁又多是峻隘险阻,适合埋伏军队。

孙膑就叫人砍去树皮,露出白木,在上面书写:“庞涓死于此树之下。

”于是命令一万名善于射箭的齐兵,隐伏在马陵道两边,约定说:“晚上看见树下火光亮起,就万箭齐发。

”庞涓当晚果然赶到砍去树皮的大树下,看见白木上写着字,就点火照树干上的字,上边的字还没读完,齐军伏兵就万箭齐发,魏军大乱,互相不能接应。

庞涓自知无计可施,败局已定,就拔剑自刎,临死说:“倒成就了这小子的名声!”齐军就乘胜追击,把魏军彻底击溃,俘虏了魏国太子申回国。

孙膑也因此名扬天下,后世社会上流传着他的《兵法》。

太史公说:社会上的人称赞军旅战法,都提到《孙子》十三篇和吴起的《兵法》,这两部书,关于这两部书的评价,社会上有很多,所以我不加论述,只评论他们生平行事所涉及到的情况。

俗话说:“能做的未必能说,能说的未必能做。

”孙膑用计策对付庞涓的军事行动是英明的,但是他自己却不能预见先避免刖足的酷刑。

……可叹啊!。

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