2020-2021学年陕西省榆林市第二中学高二上学期第二次月考(11月)英语试题
陕西省2020-2021学年高一上学期10月英语试卷精选汇编：语法填空专题
语法填空专题陕西省西安市高陵区第一中学、田家炳中学2020-2021学年高一上学期第一次月考英语试题第二节（共10小题，每小题1.5分，满分15分）阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
A Chinese company says it has created 61________ new facial recognition system that can identify people even if they are wearing masks. Developers began working on the new system in January, 62__________ cases of the new coronavirus began rising in China. The fast spread of the virus –which can be 63_________(dead) –has led most Chinese citizens 64__________(wear) face masks in public to help reduce infections.China is recognized 65________ a world leader in the development of artificial intelligence and facial recognition systems. 66___________(engineer) at the Beijing-based Hanwang Technology Ltd. say their system is the first to be created to 67___________(effective) identify people wearing face masks.The company told the Reuters news agency that a team of 20 people 68__________(build) the system in about a month. The system is based on existing technologies 69___________(develop) over the past 10 years. The process involved adding a collection of about 6 million unmasked faces 70_________ a much smaller collection of masked faces, the company said.语法填空61.a 62.when 63.deadly 64.to wear 65.as 66.Engineers 67.effectively 68.built 69.developed 70.and陕西省延安市第一中学2020-2021学年高一英语上学期第一次月考试题第二节语法填空（共10小题；每小题1.5分，满分15分）阅读下面句子，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。
天津市实验中学2024-205学年高三上学期第二次月考英语试题
天津市实验中学2024-205学年高三上学期第二次月考英语试题一、单项选择1．— Skipping breakfast is a good way to lose weight.—______. Actually it has the opposite effect.A．I can’t agree more B．That’s not the caseC．That’s it D．I’m glad to know that2．The application of AI technologies in health care industry is in an initial stage comparedwith_______ in automatic driving.A．it B．that C．those D．ones3．Shi Yuqi, as well as his badminton team members, ______ a gold medal at the Thomas Cup Awarding Ceremony on May 5th.A．is awarded B．are awarded C．was awarded D．were awarded4．I wonder what makes TikTok popular among people of all ages. People have devoted most of their energies which ______for other more significant things.A．would be saved B．could have been saved C．must have been saved D．should be saved5．Economic growth in the world remains weak throughout 2020 and it is hoped that it will________ gradually in 2021.A．break up B．pick up C．make out D．work out 6．—Did Tony win the game?—No. Staying up late made him at his worst ________ physical situation.A．in case of B．in terms of C．in favor of D．in spite of 7．—Can we make it to the concert with such heavy traffic?—Absolutely not.The pianist_______for about half an hour when we arrive.A．will be playing B．has played C．will have played D．has been playing 8．Nowadays, basic health care services are ______ to almost all the Chinese people. This accounts for the fact that the average life expectancy of the Chinese has already risen to 75.A．alternative B．abundant C．accessible D．advanced9．Much to our surprise, the witness’s _____ of the traffic accident differed from the official version in several aspects.A．account B．opinion C．instruction D．explanation10．____to developing the green economy, as is reported, is the driving force behind the success of the village.A．Committed B．To have committedC．Being committed D．Having committed11．Mr. Smith was really a very great teacher, ________ lectures we benefited a lot about communication skills.A．from whom B．of whom C．from whose D．of whose 12．—When will the visas be ready, sir?—_______everything goes well, you should get them in 14 workdays.A．Although B．As far as C．Unless D．As long as13．It is reported that a new wildlife conservation area has been established in ________ was once known for deforestation to protect endangered species.A．what B．which C．how D．where14．Many Chinese brands, __________their reputations over centuries, are facing new challenges from the modern market.A．having developed B．being developedC．developed D．developing15．________ hard you try, it is difficult to lose weight without cutting down the amount you eat.A．However B．WhateverC．Whichever D．Whenever二、完形填空Travel inspires adventure, team spirit and growth in children, as I discovered when I took my daughter Mai with me around the world.When she was four, we had a parent-child 16 through the Fraser River in Canada.I was a travel writer and my job covered from describing the scenery I traveled along to 17 the people I met. So while I was taking pictures, Maia, wanting to prove her 18 as anassistant, began interviewing a couple in the same ship. Unable to spell words, she 19 their answers in crayon. Then when we sat together at lunch, my daughter 20 the kids’ meal and requested the salmon (三文鱼). She explained that kids’ meals might not always be 21 during travel, so her food 22 was “try everything.” That trip proved Maia as such an easy travel 23 .When she was six, we flew to the Riviera Maya in Mexico. I was impressed by how 24 fearless she was when we dived along a reef(礁石). And I was 25 by how she cleverly worked out that she could order chocolate cake from room 26 alone. But it was on the 27 home, when my glued-to-my-arm kid said it was okay that the airline didn’t 28 us together, that I realized how much travel was 29 her. It helped her become more 30 .As Mai a grew older, travel continued to 31 her life. We explored the Amazon rainforest, where she learned the importance of 32 our planet. We visited famous 33 in China , where she developed a deep appreciation in its rich cultures and long history. And we 34 at an orphanage (孤儿院) in Africa, where she learned the meaning of love and care.Travel has also helped Maia develop important life 35 such as independence, problem-solving, and communication. I am grateful for what travel has had on my daughter, and I am excited to see what the future holds for her.16．A．course B．talk C．journey D．quarrel 17．A．helping B．teaching C．organizing D．interviewing 18．A．worth B．belief C．discovery D．demand 19．A．spelled B．reported C．found D．drew 20．A．picked up B．turned down C．searched for D．complained about 21．A．affordable B．delicate C．available D．delicious 22．A．chain B．motto C．preference D．supply 23．A．agent B．client C．assistant D．partner 24．A．cheerfully B．foolishly C．smartly D．unpleasantly 25．A．persuaded B．puzzled C．criticized D．offended 26．A．cleaning B．service C．rent D．design27．A．train B．ship C．flight D．bus 28．A．invite B．see C．link D．seat 29．A．shaping B．comforting C．hurting D．ruining 30．A．intelligent B．adaptable C．respectful D．changeable 31．A．rule B．disturb C．enrich D．save 32．A．protecting B．controlling C．destroying D．creating 33．A．sites B．people C．parks D．shops 34．A．survived B．played C．volunteered D．spoke 35．A．styles B．values C．attitudes D．skills三、阅读理解If you are applying to universities overseas, you can’t avoid having a video interview, whether you like it or not. Here are some steps to follow when preparing for the perfect video interview.Step 1: Start with the basicsBefore your interview, find out what platform or application the school uses for video interviews, and make sure that you know how to operate it.You need to set up a clear and focused interview environment. You also need a strong internet connection.Step 2: Get prepped (做好准备)Once the interview begins, resist the urge to watch yourself, and make sure you are looking at the camera as much as possible. Try to anticipate the questions that they will ask you. Interview questions all boil down to three basic categories:Tell us about yourself.What do you bring to our program/why should we admit you?Do you have any questions about the school?Before the interview, prepare at least two to three minutes on each of these topics.Step 3: PracticePractice your answers with a friend or mentor. Get them to ask you questions and answerthem over video. If possible, work with a person who is fluent in the language of your interviewers, and get them to give you notes and comments about pronunciation or presentation.Step 4: Don’t just interview... converseInterviews are about getting to know you as a person and how well you can interact with others. Though you may have extensive notes, try to act natural - do not read directly from any prepared statements, and don’t memorize answers to repeat. Listening is just as critical as speaking in this situation, too. Make sure you understand the question that is posed to you and ask an interviewer to repeat it or expand upon it if you feel you are confused.36．In preparing for the perfect video interview, you need to ________.A．have quick access to the Internet B．know how to operate the interviewC．fill out an application on the platform D．find a suitable environment for the interview 37．Once the interview begins, what should you keep in mind?A．Keeping quiet unless asked to talk.B．Making eye contact as much as possible.C．Expecting the questions that are often asked.D．Preparing answers on some of thequestions.38．Which of the following is TRUE about Step 3?A．You should be fluent in the language of your interviewers.B．Practicing with your friend over the phone may be helpful.C．Practicing in advance may help improve your performance.D．Notes and comments from the interviewers are practical.39．When doing an interview, you ________.A．are supposed to memorize answers to repeat B．must ask the interviewers to explain the questionsC．can read prepared statements as naturally as you can D．should attach equalimportance to listening as speaking40．Who is probably the author of the passage?A．An expert in university admissions.B．A visitor to different universities abroad.C．An editor in charge of a travel magazine.D．A student applying for universities overseas.When Milla Bizzot to finished her first 24-hour obstacle race, she went shoulder to shoulderwith experienced competitors, ran 36 miles and completed hundreds of obstacles, all at the age of 9.“There are some double takes on the course, but she has been an inspiration to people who see her out there competing like that,” said Christian Bizzotto, Milla’s father and coach, who was proud of her. Milla is very fit for her age, and she proved it in completing the BattleFrog Xtreme 24-hour race in Miami.Milla also used the event to inspire other kids to be active, and show how competing in obstacle racing has helped her deal with being bullied at school. “We wanted to make her feel more empowered and make her feel that she wasn’t weak, and that changed her whole mindset,” her father said.In preparing for the 24-hour race, Milla trained 20 hours a week for 90 days, doing exercise in the gym for 4 hours every day after school.“The reactions are 90 percent good, but some are totally negative,” Christian said. “I’ve had people message me on Facebook saying I’m a child abuser, and that no 9-year-old should be doing a 24-hour race. But her own doctors were there supporting her and cheering her on. I want her to be a kid, and this is just something she really wants to do.”CrossFit and obstacle course racing have also helped Christian turn around his life. He got injured in a motorcycle accident. After he was finally able to get around without using a walker, he began his recovery by going for walks on the beach with Milla, and then began running every day.Next, he joined a CrossFit gym and enjoyed it so much that he opened his own gym to train others for events like CrossFit, BattleFrog and Spartan races. “I just wanted to create a hero that Milla could look up to,” he said.Next up for Milla is an invitation-only “Athletes Race”. Competitors also have to raise $5,000 for charity.41．Christian Bizzotto, Milla’s father and coach, ______.A．was very strict with MillaB．was satisfied with what Milla didC．lost his legs in a motorcycle accidentD．threw his walker with the help of CrossFit42．What can we learn about Milla?A．She was always bullied by her schoolmates.B．She began to run because she was physically weak.C．Her father wanted her to get benefit from the obstacle race.D．She became more confident after the 24-hour obstacle race.43．During her training for the 24-hour obstacle race, Milla most probably _________.A．had two days’ rest every weekB．was always running with her fatherC．spent over 4 hours every day of a weekD．took a hit because her father was injured44．The reactions Christian got on the Internet ______.A．told us that Milla had a hard childhoodB．showed that he was a real abuserC．encouraged Milla to challenge more difficult runsD．were mixed but what Milla did was supported by her doctors45．What Christian did after his injury was mainly to ______.A．make money to open a gymB．set a good example to MillaC．make money to raise his familyD．get recovered as soon as possibleSeveral new species of tropical birds have been found on remote islands in Indonesia. Researchers have discerned the Wakatobi sunbird, a new species that lives on the small Wakatobi Islands, located in central Indonesia. They also studied olive-backed (橄榄背的) sunbirds and black sunbirds and found that some of the birds they examined actually belonged to some previously unrecognized species.The new Wakatobi sunbird looks similar to the olive-backed sunbird, but has darker feathers, shorter wings, and a higher-toned song. Zoologists believe that because it has such short wings, it never spread beyond the tiny islands. The olive-backed sunbird, however, can fly long distances, so it was able to inhabit other locations.These discoveries were part of a long-time cooperation between scientists at Trinity College Dublin and Universitas Halu Oleo in Sulawesi, Indonesia.“Specifically, we became interested in the Wakatobi sunbird because of the work of Ernst Hartert, a German bird expert active at the beginning of the 20th century,” Fionn O Marcaigh, first author on the paper, says. “He described the Wakatobi sunbird as a population with distinctive dark feathers, but he and the rest of the scientific community eventually decided that it was only a subspecies of the widespread olive-backed sunbird. We were eager to use modern methods to put this to the test.”For their research, scientists used DNA, recordings of songs and body measurement analysis to compare the sunbirds they studied, “We used a system called integrative taxonomy, which combines data on a number of aspects of the birds, including their songs, feathers, and body structures,” O Marcaigh says. “We recorded their songs using digital recorders, measured live birds caught and released by licensed netters, and used computational statistics to analyze the differences.” The scientists also obtained genetic samples which they analyzed in the lab and they found that the patterns they found were also reflected in the birds’ DNA．“I’m excited that we’ve added to the list of known species from this wonderful part of the world,” O Marcaigh says.46．What does the underlined word “discerned” in paragraph 1 probably mean?A．Overestimated.B．Imagined.C．Overlooked.D．Identified. 47．How does the Wakatobi sunbird differ from the olive-backed sunbird?A．It has colorful wings.B．It flies shorter distances.C．It lives throughout Indonesia.D．It sings more beautiful songs.48．What can we know about Ernst Hartert?A．He is a scientist from Universitas Halu Oleo.B．He still takes an active part in bird research.C．He is the first scientist to use DNA to study birds.D．He inspired the researchers’ interest in the Wakatobi sunbird.49．Why did O Marcaigh study the Wakatobi sunbird?A．To determine its category.B．To investigate its habitat and behavior.C．To analyze its genetic makeup.D．To continue the study of Ernst Hartert. 50．Which aspect of the research does paragraph 5 mainly talk about?A．Its methods.B．Its theories.C．Its impact.D．Its background.To put it simply, stress can be the father of growth, while a crisis can be the mother of innovation. The notion that great good can emerge from great adversity (逆境) is as old as the legend of the great phoenix (凤凰), who not only arises but soars to new heights from its own ashes.In 1598, William Shakespeare penned the play As You Like It. One of the most famous lines from that play is spoken in Act 2 Scene 1 by Duke Senior, “Sweet are the uses of adversity which, like the toad (癞蛤蟆), ugly and venomous, wears yet a precious jewel in his head.” Even 500 years ago, the potential value of adversity was recognized, not by a great healer, but by a great playwright. Can this really be the case?Fast-forward to the great silent film star Mary Pickford. She was called the most popular actress in the world in the 1910s and 1920s. Failing to continue acting with the advent of the “talkies”(movies with recorded sound), she co-founded the film company United Artists. Shifting her talents to producing and directing, she became the most powerful woman in the entertainment industry. She once noted, “You may have a fresh start any moment you choose, for this thing that we call ‘failure’ is not the falling down, but the staying down.”Rather than fear and try to avoid adversity, perhaps we should accept the inevitability (必然) of adversity and prepare for it. Indeed, positive things can emerge from adversity.Adversity reveals true opportunities for those preparing to take advantage. Dr. John Krumboltz’s happenstance theory states that career and life development is best fostered by preparing for opportunities that you may not know even exist in the current moment. Numerous unpredictable factors are potentially shaping the future. These include the crises adversity brings.In Friedrich Nietzsche’s book, Behold the Man, the German philosopher writes that a person who has “turned out well” could be recognized by the ability to take advantage of and prosper from adversity, just as he wrote before, “What does not kill him makes him stronger.”So, the next time adversity enters your life, will you run from it, or will you embrace it and use it as a step ping stone to greater happiness and success?51．Why does the author quote the line from Shakespeare’s play?A．To emphasize the great wisdom of Shakespeare.B．To highlight the beauty of Shakespeare’s language.C．To challenge the conventional belief regarding adversity.D．To show the long-standing recognition of adversity’s value.52．What is conveyed through Mary Pickford’s story?A．Fame can block one’s achievements.B．Strong determination overcomes adversity.C．Accepting adversity results in positive outcomes.D．Courage in the face of challenges leads to success.53．What is the idea behind Krumboltz’s happenstance theory?A．Embracing uncertainty.B．Managing life’s challenges.C．Seizing hidden opportunities.D．Focusing on personal growth.54．What is the author’s attitude towards adversity?A．Cautious.B．Favorable.C．Neutral.D．Doubtful. 55．What does the passage mainly talk about?A．Finding value and opportunity in facing adversity.B．Stress as the primary cause of growth and innovation.C．How to avoid adversity and negative experiences in life.D．Historical figures who failed to overcome adversity effectively.阅读下面短文，并根据题目要求用英语回答问题(请注意问题后的字数要求)。
陕西省西安市曲江第二中学2020-2021学年高二下学期期中英语试题
陕西省西安市曲江第二中学2020-2021学年高二下学期期中英语试题学校:___________姓名：___________班级：___________考号：___________一、阅读理解Rome can be pricey for travelers, which is why many choose to stay in a hostel (旅社). The hostels in Rome offer a bed in a dorm room for around $25 a night, and for that, you’ll often get to stay in a central location (位置) with security and comfort.Yellow HostelIf I had to make just one recommendation for where to stay in Rome, it would be Yellow Hostel. It’s one of the best-rated hostels in the city, and for good reason. It’s affordable, and it’s got a fun atmosphere without being too noisy. As an added bonus, it’s close to the main train station.Hostel Alessandro PalaceIf you love social hostels, this is the best hostel for you in Rome. Hostel Alessandro Palace is fun. Staff members hold plenty of bar events for guests like free shots, bar crawls and karaoke. There’s also an area on the rooftop for hanging out with other travelers during the summer.Youth Station HostelIf you’re looking for cleanliness and a modern hostel, look no further than Youth Station. It offers beautiful furnishings and beds. There are plenty of other benefits, too; it doesn’t charge city tax; it has both air conditioning and a heater for the rooms; it also has free Wi-Fi in every room.Hotel and Hostel Des ArtistesHotel and Hostel Des Artistes is located just a 10-minute walk from the central city station and it’s close to all of the city’s main attractions. The staff is friendly and helpful, providing you with a map of the city when you arrive, and offering advice if you require some. However, you need to pay 2 euros a day for Wi-Fi.1．What is probably the major concern of travelers who choose to stay in a hostel?A．Comfort.B．Security.C．Price.D．Location.2．Which hotel best suits people who enjoy an active social life?A．Yellow Hostel.B．Hostel Alessandro Palace.C．Youth Station Hostel.D．Hotel and Hostel Des Artistes. 3．What is the disadvantage of Hotel and Hostel Des Artistes?A．It gets noisy at night.B．Its staff is too talkative.C．It charges for Wi-Fi.D．It’s inconveniently located.The next time you find an excuse to abandon your ambition, think of Chris Nikic. On November 7, 2020, 21-year-old Chris Nikic made history as the first person with DownCorporation, it requires athletes to swim 2.4 miles, bike 112 miles, and run a full 26.2-mile marathon-in under 17 hours!The event, which took place in Panama City, Florida, began early in the morning with a two-lap swim in the Gulf of Mexico. Chris, who was tied to his coach for safety, completed the course well within 2 hour, 20-minute time limit.The 112-mile bike ride, which Chris rode alone, proved a little more challenging. Not accustomed to drinking water while riding, he was forced to make multiple stops. To make matters worse, the young athlete was attacked by an army of red ants whose nest he accidentally stepped on during a break. He also had a bleeding knee after crashing while speeding downhill. Despite these setbacks, Chris managed to complete the lap before the 5:30 pm cut-off time.The competition's final challenge—a two-lap 26. 2-mile run along the waterfront- started smoothly. However, Chris was tired out? by the tenth mile. But, with encouragement from his coach and cheering bystanders, the youngster somehow managed to cross the finish line in 16 hours, 46 minutes, and 9 seconds-almost 15 minutes under the 17-hour time limit.Chris is no stranger to overcoming challenges. Born with two holes in his heart, he underwent surgery at just five months old. He was too weak to walk independently until he was four. Due to his Down Syndrome, every expert his parents spoke to focused on the limitations rather than the possibilities.To Chris, this race was more than just a finish line and celebration of victory. It's about being an example to other kids and families that face similar barriers.4．What does the underlined part "an Ironman" in paragraph 1 refer to?A．A competition.B．An organization.C．A person.D．An artwork.5．Which of the following best describes Chris's bike ride experience?A．Romantic.B．Eventful.C．Pleasant.D．Smooth. 6．What does the author intend to do in paragraph 5?A．Stimulate readers' interest.B．Introduce a new topic.C．Summarize the previous paragraphs.D．Add some background information. 7．What can we learn from Chris's story?A．Winning is everything.B．No dream is unachievable.C．Life is full of choices.D．Misfortune is a barrier to success.Whether in the home or the workplace, social robots are going to become a lot more common in the next few years. Social robots are about to bring technology to the everyday world in a more humanized way, said Cynthia Breazeal, chief scientist at the robot company Jibo.While household robots today do the normal housework, social robots will be much more like companions than mere tools. For example, these robots will be able to distinguish when someone is happy or sad. This allows them to respond more appropriately to the user.The Jibo robot, arranged to ship later this year, is designed to be a personalized assistant. You can talk to the robot, ask it questions, and make requests for it to perform different tasks. The robot doesn’ t just deliver general answers to questions; it responds based on what it learns about each individual in the household. It can do things such as reminding an elderly family member to take medicine or taking family photos.Social robots are not just finding their way into the home. They have potential applications in everything from education to health care and are already finding their way into some of these spaces.Fellow Robots is one company bringing social robots to the market. The company’ s “ Oshbot” robot is built to assist customers in a store, which can help the customers find items and help guide them to the product’ s location in the store. It can also speak different languages and make recommendations for different items based on what the customer is shopping for.The more interaction the robot has with humans, the more it learns. But Oshbot, like other social robots, is not intended to replace workers, but to work alongside other employees. “ We have technologies to train social robots to do things not for us, but with us,” saidBreazeal.8．How are social robots different from household robots?A．They can control their emotions.B．They are more like humans.C．They do the normal housework.D．They respond to users more slowly.9．What can a Jibo robot do according to Paragraph 3?A．Communicate with you and perform operations.B．Answer your questions and make requests.C．Take your family pictures and deliver milk.D．Obey your orders and remind you to take pills.10．We can learn from the last paragraph that social robots will ______.A．train employeesB．be our workmatesC．improve technologiesD．take the place of workers11．What does the passage mainly present?A．A new design idea of household robots.B．Marketing strategies for social robots.C．Information on household robots.D．An introduction to social robots.Being taken off the endangered species list doesn't guarantee a carefree future for whales. Recent research estimates that the population of Pacific gray whales off North America's Westdead gray whales were spotted on beaches and floating offshore throughout their habitat, from Mexico to Alaska. The National Marine Fisheries Service defined it as an “Unusual Mortality Event”. UMEs are declared when a “significant die-off” occurs and when information is collected to clarify why it occurs.The Arctic has historically low levels of sea ice in recent years, upending the delicate ecosystem that sustains gray whales. Like other migrators, they don't feed on their winter breeding (繁殖) grounds or along their migration, and must gain weight during the summer tosustain themselves through the rest of the year. Observers using air photography noted the whales looked skinnier and arrived in Mexico in poor condition, which suggested they were not finding enough food during the summer.This die-off is alarmingly similar to the events of 20 years ago, when another UME resulted in a significant drop in the gray whale population. Although the cause was ultimately undetermined, it's thought that the population reached “carrying capacity”— it grew too large for the environment to support it. Although that idea has been suggested for this die-off as well, it's more likely blamed on the changing conditions of the Arctic.Gray whales, hunted almost to extinction by the mid-20th century, were one of the first to be protected from hunting. The Eastern North Pacific population rebounded without pressure from whaling and was taken off the Endangered Species List; the Western North Pacific population is still listed as endangered. This die-off is a reminder that “delisting” doesn't indicate a population's secure future. New threats arise, climate change upends habitats, and continued monitoring is needed in case a crash comes.12．What does the underlined word “dwindled” in paragraph 1 mean?A．Increased.B．Bounced.C．Multiplied.D．Dropped.13．What will gray whales usually do in winter?A．Consume few calories.B．Travel south to breed.C．March back to Alaska.D．Seek food in the Arctic.14．What might be the main cause of the current UME?A．Serious illnesses.B．Sea pollution.C．Environmental changes.D．Limited carrying capacity.15．What's the author's attitude to the “delisting”?A．Favorable.B．Concerned.C．Intolerant.D．Regretful.二、七选五VoluntourismV olunteering to help people in need combined with travelling to faraway places is a new trend in the travel industry. It is called voluntourism. 16 They find it is the best way toget the best of the world.Recent statistics show that in the past few years voluntourism has been one of the fastest-growing areas of tourism. More than 1.6 million people around the world are volunteers in other countries. They help build schools, assist in hospitals and do farming work in developing countries. 17 They keep in touch with their host families after they return home, and many return to visit.There are many reasons why people want to engage in voluntourism. When people choose to join a voluntourism program, they are joining a global network of volunteers who are living and working with diverse cultures on projects that have a positive effect. The volunteers come from all over the world, and they will share the passion for giving back and the desire to broaden horizons. Some students also see it as a gap year after school, while others simply want to take time out from a job and do something else. 18 However, many voluntourists do not see volunteering as what it is. They think it is a cheap way of travelling and don't really want to get involved in hard work.While voluntourism has been around for over a century, modern volunteering started with the Peace Corps, a program that the US government started in the 1960s. From then on, voluntourism has become more and more popular. Many organizations start similar projects.19 And they have hundreds of different types of programs for people to choose from in more than 30 developing countries. The programs run year round and each volunteer chooses when they want to start and the duration they would like to stay for.20 They say that if people really want to help those in need, there are many opportunities in their own community to do this. On the other side, volunteers are often not skilled enough for the tasks that they do. Travel experts point out that in some cases voluntourists are often taken advantage of by the organization that sets up the trips.A．Not everyone sees voluntourism in a positive way.B．Some of them establish lasting bonds with people there.C．And there are those who are bored and merely seek adventure.D．Most voluntourism organizations employ people from similar fields.E．By participating in voluntourism, they are contributing to local economy.F．People travel to other countries, learn languages and gain new experiences.G．They offer voluntourism trips to suit people's interest, experience level or age.三、完形填空When I was 13 my only purpose was to become the star on our football team. That32．A．praise B．advice C．assistance D．apology 33．A．let B．helped C．had D．noticed 34．A．dropped B．ready C．trapped D．safe 35．A．fine B．wrong C．quickly D．normally 36．A．us B．yourself C．me D．them 37．A．memories B．ideas C．attitudes D．dreams 38．A．still B．also C．yet D．just 39．A．challenged B．cured C．invited D．admired 40．A．healthier B．bigger C．cleverer D．cooler四、用单词的适当形式完成短文五、短文改错51．假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。
下学期高三年级第二次月考英语考试(2020-2021学年度)
高三年级第二次月考英语考试（2020-2021学年度）总分：150分完卷时间：120分钟第一部分：听力（共两节，满分30分）第一节（共5小题，每小题1.5分，满分7.5分）听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1．What does Mr. Taylor do?A．He is a dentist. B．He is a new teacher.C．He is an actor.2．Where are the speakers?A．At an apartment. B．At a coffee bar. C．At a hotel.3．What can we learn from the conversation?A．The woman wants to clean the room.B．Linda comes to help the man every day.C．The room hasn't been cleaned since Linda came.4．What does the woman mean?A．Her room isn't the messy one.B．She shares her room with Joan.C．She would like to change subject.5．What do we learn from this conversation?A．The man doesn't like Mr. Smith.B．The man doesn't understand the lesson.C．The man doesn't like Mr. Smith's lesson.第二节（共15小题；每小题1.5分，满分22.5分）听下面5段对话或独白。
2020-2021学年高二英语4月月考试题 (I)[2]
![2020-2021学年高二英语4月月考试题 (I)[2]](https://img.taocdn.com/s3/m/e088a9b4f5335a8103d2207c.png)
2020-2021学年高二英语4月月考试题 (I)说明：1.本试卷分第I卷和第II卷两个部分2.第I卷试题答在答题卡上，第II卷试题答在试卷上第一部分听力（共两节，满分30分）第一节（共5小题，每题1.5分，共7.5分）听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
每段对话仅读一遍。
1.What did the man forget to do?A. Borrow some books.B. Buy some milk and eggs.C. Take the garbage downstairs.2. What is the presentation about?A. A famous person.B. An inspiring story.C. A rare animal.3.What will the woman probably do first?A. Plan a party.B. Do Dottie a favor.C. Work on her report.4. What is the woman?A. A shop assistantB. A teacherC. A doctor.5. Who might Cathy be?A. Jill' s roommate.B. Jill' s teacher.C. Bill's friend.第二节（共15小题；每小题 1.5 分，满分 22.5 分）听下面5 段对话或独白。
每段对话或独白后有几个小题，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。
每段对话或独白读两遍。
听第6段材料，回答第6、7题。
6. What can we know about the man?A. He hates the heavy traffic on the roadB. He lives near the subway stationC. His home is close to his office7. What are the two speakers mainly talking about?A. High price of gasB. Importance of exerciseC. Advantages of taking the subway.听第7段材料，回答第8、9题。
山东省2020-2021学年高二上学期10月英语试卷精选汇编：读后续写专题
Jim, 42,didn’t like the idea that a theft could have occurred at his place. So he set out to find the wallet. He spent hourscheckingthe video tapesfrom 16different surveillance cameras（监控摄像机）,watching thewoman’s every step in the bar until she went to sit on a bench outside and left whenher ride arrived. Within minutes, a young manapproached thebench,quickly putsomething in his pocket, and walked off.Jimposted a clipon the bar’s Facebook page. “I just askedif anybody knew who the guy was,”Jimsaid.
One summer, the neighborhood where she lived would hold a singing competition. Her best friend, Lucy, came to invite her to participate in the competition, but Emily said, “ I’m afraid totake part in it.” Her mother said, “ It’s okay, just do it bravely.” Emily followed her mama’s advice and decided to give herself a try. The day came. Emily and Lucy went to the competition site. But she was too timid (胆小的) to walked onto the stage. She had been waiting until others finished singing. She shakily forced herself to stand on the stage. She started to sing, but her voice was so low. What’s worse, she was so nervous that she forget the lyrics (歌词) after singing a few words. Being laughed at by others, embarrassed and shy, she ran away from the stage.
2020届陕西省榆林市第二中学高三模拟考试英语试卷 Word版
2020届陕西省榆林市第二中学高三模拟考试英语试卷考试范围：高考范围，考试时间：120分钟第Ⅰ卷第一部分:听力(共两节,满分30分)第一节（共5小题；每小题1.5分，满分7.5分）听下面5段对话，每段对话后有一个小题。
从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. What’s the weather like now?A. Windy.B. Rainy.C. Cloudy.2. Where will the woman spend her honeymoon?A. In Spain.B. In France.C. In Italy.3. What is the woman?A. A writer.B. A waitress.C. A publisher.4. Who will the man give the school paper to?A. Ted.B. Jane.C. The woman.5. Where does the conversation take place?A. In an office.B. In a gym.C. In a swimming pool.第二节(共15小题；每小题1.5分，满分22.5分)听下面5段对话或独白，每段对话或独白后有几个小题，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。
每段对话或独白读两遍。
6. How heavy is the woman’s package?A. 4 kilos.B. 5 kilos.C. 6 kilos.7. How much does the woman have to pay?A. 5 pounds.B. 6 pounds.C. 11 pounds.听第7段材料，回答8-9题。
陕西省榆林市第二中学2024_2025学年高二地理上学期第一次月考试题无答案
榆林市2024--2025学年第一学期第一次月考高二年级地理试题命题人：考试时间：90分钟满分：100分一、单项选择题（共30小题，每小题2分，共60分）读中国建筑气候区划图，完成下题。
1.图中（）A. 各区域是根据单一指标划分的B. 各区域内部特征完全一样C. 各区域的分布范围相当D. 各区域之间的边界清楚明确2.从a到d（）A. 现代楼房间距越来越大B. 传统房屋窗户越来越小C. 现代楼房高度越来越大D. 传统房屋墙壁厚度越来越小我国幅员宽阔，地理环境差异显著，地理环境的差异导致了人类活动的差异。
据此回答下列各题。
3. 广东人常常喝凉茶，四川人喜爱吃麻辣。
形成这种饮食习惯差异的主要自然因素是（）A．植被 B．土壤 C．气候 D．地形4．我国南方地区以水田农业为主，北方地区以旱作农业为主，西北地区发展畜牧业。
形成这种生产活动地域差异的主要自然因素是（）A．降水 B．地形 C．土壤 D．热量读图，回答5～8题。
5. 图示地区属于我国的( )A．黄土高原 B．柴达木盆地C．天山 D．内蒙古高原6．为解决该地区能源短缺的问题，正确的措施是( )A．兴建小水电站 B．利用风力发电C．营造速生薪炭林 D．修建核电站7．造成该地区荒漠化的缘由是( )A．过度樵采 B．过度放牧 C．过度农垦 D．水资源利用不当8．防治该地荒漠化的最有效措施是( )A．扎设草方格沙障固沙 B．消退地表疏松沙质沉积物C．复原荒漠区自然植被 D．改善荒漠区局部小气候地理信息技术广泛应用于我们的生产、生活，大众化应用已成为趋势。
结合有关学问，回答下列各题。
9.“滴滴出行”是一款便民打车的智能手机应用软件。
通过这款软件，乘客可以轻松发单，随时随地打车。
“滴滴出行”软件获得乘客旁边出租车的位置信息，并显示在手机上，主要应用的地理信息技术是（）①GIS ②数字地球③RS ④GPSA．①④ B．②④C．③④ D．②③结合我国部分防护林分布示意图，完成以下2小题。
等差数列的前n项和(精练)(解析版)
4.2.2 等差数列的前n 项和1．（2020·宜宾市叙州区第一中学校高三三模（文））已知等差数列{}n a 的前n 项和为n S ，9445,31n S a -==，若198n S =，则n =（ ） A ．10 B ．11C ．12D ．13【答案】B【解析】945S =1955945()952a a a a ⇒=+=⇒= ,所以154()()198(531)11222n n n n n nS a a a a n -=+=+∴=+∴= ,选B.2．（2020·东北育才学校高二月考（文））已知等差数列{}n a 的前n 项和为n S ，若74328a a =+，则25S =（ ） A ．50 B ．100C ．150D ．200【答案】D【解析】设等差数列{a n }首项为1a ，公差为d,∵74328a a =+，∴3(()116)238a d a d +=++,∴1a +12d=8，即138a = 故S 25=()125252a a +=132522a ⨯=25a 13=200故选：D ． 3．（2020·四川省泸县第二中学开学考试（文））等差数列{}n a 的前n 项和为n S ，23a =，且936S S =，则{}n a 的公差d =（ ）A ．1B ．2C ．3D ．4【答案】A【解析】由等差数列性质知()()1319329353939,?654922a a a a S a S S a ++=======，则56a =.所以5213a a d -==.故选A. 4．（2020·云南高一期末）《周髀算经》中有这样一个问题：从冬至日起，依次小寒、大寒、立春、雨水、惊蛰、春分、清明、谷雨、立夏、小满、芒种这十二个节气其日影长依次成等差数列，冬至、立春、春分日影长之和为31.5尺，前九个节气日影长之和为85.5尺，则小满日影长为（ ） A ．1.5尺B ．2.5尺C ．3.5尺D ．4.5尺题组一 等差数列的基本量【答案】C【解析】从冬至日起,依次小寒、大寒、立春、雨水、惊蛰、春分、清明、谷雨、立夏、小满、芒种这十二个节气其日影长依次成等差数列{}n a ,冬至、立春、春分日影长之和为31.5尺,前九个节气日影长之和为85.5尺,∴()()111913631.598985.52a a d a d S a d ⎧++++=⎪⎨⨯=+=⎪⎩,解得113.5a =,1d =-,∴小满日影长为1113.510(1) 3.5a =+⨯-=（尺）.故选C .5．（2020·陕西省洛南中学高二月考）在等差数列{}n a 中，已知12232,10a a a a +=+=，求通项公式n a 及前n 项和n S .【答案】45n a n =-，223n S n n =- *(1,)n n N ≥∈【解析】令等差数列{}n a 的公差为d ，则由12232,10a a a a +=+=，知：11222310a d a d +=⎧⎨+=⎩，解之得11{4a d =-=； ∴根据等差数列的通项公式及前n 项和公式，有：()()1114145n a a n d n n =+-=-+-=-，21232nn a a S n n n +=⋅=- *(1,)n n N ≥∈；1．（2020·湖北黄州·黄冈中学其他（理））已知数列{}n a 为等差数列，n S 为其前n 项和，6353a a a +-=，则7S =（ ） A ．42 B ．21C ．7D ．3【答案】B【解析】由等差数列的性质可得6354553a a a a a a +-=+-=，()1747772732122a a a S +⨯∴===⨯=.故选：B.2．（2019·贵州六盘水·高二期末（理））在等差数列{}n a 中，358a a +=，则7S =（ ）题组二 前n 项和S n 与等差中项A ．12B ．28C ．24D ．35【答案】B【解析】等差数列{}n a 中，358a a +=，故17358a a a a +=+=，所以()7717782822S a a +⨯===.故选：B. 3．（2020·湖北荆州·高二期末）已知等差数列{}n a 的前n 项和为n S ，若57942a a a ++=，则13S =（ ） A ．36 B ．72C ．91D ．182【答案】D【解析】数列{}n a 为等差数列，则5797342a a a a ++==，解得714a = 则()113137131313141822a a S a+=⨯==⨯=故选：D4．（2019·黄梅国际育才高级中学月考）若两个等差数列{}{},n n a b 的前n 项和分别为A n 、B n ，且满足4255n n A n B n +=-，则513513a a b b ++的值为（ ）A ．78B ．79C ．87D ．1920【答案】A【解析】等差数列{}n a 、{}n b 前n 项和分别为n A ，n B ，由4255n n A n B n +=-， 得1131171131751717511177)2)217(4172717(51758a a a a a a Ab b b b b b B +++⨯+=====+++⨯-．故选：A . 5．（2020·赣州市赣县第三中学期中）设等差数列{}n a 前n 项和为n S ，等差数列{}n b 前n 项和为n T ，若20121n n S n T n -=-．则33a b =（ ） A ．595B ．11C ．12D ．13【答案】B【解析】因为等差数列{}n a 前n 项和为n S ，所以1()2n n n a a S +=， 当n 是奇数时，112()2n n n n a a S na ++==，所以33533555a a Sb b T ==,故选：B6．（2020·广西田阳高中高二月考（理））已知等差数列{}n a ，{}n b 的前n 项和分别为n S 和n T ，且521n n S n T n +=-，则76a b =（ ） A ．67B ．1211C ．1825D ．1621【答案】A【解析】因为等差数列{}n a ，{}n b 的前n 项和分别为n S 和n T ，且521n n S n T n +=-， 所以可设(5)n S kn n =+，(21)n T kn n =-， 所以77618a S S k =-=，66521b T T k =-=，所以7667a b =.故选：A 7．（2020·商丘市第一高级中学高一期末）等差数列{a n }、{b n }的前n 项和分别为S n 、T n ，且7453n n S n T n +=-，则使得nna b 为整数的正整数n 的个数是( ) A ．3 B ．4C ．5D ．6【答案】C【解析】∵等差数列{a n }、{b n }，∴121121,22n n n n a a b ba b --++== ， ∴()()121211212122n n n n n n n n n a a a na S n b b b nb T ----+===+ ,又7453n n S n T n +=- ， ∴()()7214566721324n n n a b n n -+==+--- ， 经验证,当n=1,3,5,13,35时,n n a b 为整数，则使得nna b 为整数的正整数的n 的个数是5.本题选择C 选项.1．（2020·榆林市第二中学高二月考）设等差数列{}n a 的前n 项和为n S ,若488,20S S ==,则题组三 前n 项和S n 的性质13141516a a a a +++= ( )A ．12B ．8C ．20D ．16【答案】C【解析】∵等差数列{}n a 的前n 项和为n S ，488,20S S ==， 由等差数列的性质得：4841281612,,,S S S S S S S ---成等比数列 又4848,20812,S S S =-=-=∴128122012416,S S S -=-=+=16121314151616420S S a a a a -=+++=+=．故选：C ．2．（2020·重庆其他（文））等差数列{}n a 的前n 项和为n S ，已知312S =，651S =，则9S 的值等于（ ） A ．66 B ．90C ．117D ．127【答案】C【解析】等差数列{}n a 的前n 项和为n S ,由题意可得63963,,S S S S S --成等差数列，故()()363962S S S S S -=+-，代入数据可得()()9251121125S -=+-，解得9117S =故选C3．（2020·江苏徐州·高二期中）已知n S 为等差数列{}n a 的前n 项之和，且315S =，648S =，则9S 的值为（ ）. A ．63 B ．81C ．99D ．108【答案】C【解析】由n S 为等差数列{}n a 的前n 项之和，则3S ,639633(1),,......m m S S S S S S ---- 也成等差数列， 则3S ，6396,S S S S --成等差数列，所以633962()()S S S S S -=+-，由315S =，648S =， 得999S =，故选：C.4．（2020·昆明市官渡区第一中学高二期末（理））等差数列{}n a 的前n 项和为n S ，且1020S =，2015S =，则30S =( ) A ．10 B ．20C ．30-D ．15-【答案】D【解析】由等差数列{}n a 的前n 项和的性质可得：10S ，1200S S -，3020S S -也成等差数列，20101030202()()S S S S S ∴-=+-，302(1520)2015S ∴⨯-=+-，解得3015S =-．故选D ．5．（2020·朔州市朔城区第一中学校期末（文））设等差数列{}n a 的前n 项和为n S ，若39S =，636S =，则789a a a ++=（ ） A ．63 B ．45 C ．36 D ．27【答案】B【解析】由等差数列性质知S 3、S 6﹣S 3、S 9﹣S 6成等差数列，即9，27，S 9﹣S 6成等差，∴S 9﹣S 6=45 ∴a 7+a 8+a 9=45故选B ．6．（2020·新疆二模（文））在等差数列{}n a 中，12018a =-，其前n 项和为n S ，若101221210S S -=，则2020S =（ ） A ．-4040 B ．-2020 C ．2020 D ．4040【答案】C【解析】设等差数列{}n a 的前n 项和为2+n S An Bn =，则+nS An B n=， 所以n S n ⎧⎫⎨⎬⎩⎭是等差数列．因为101221210S S -=，所以n S n ⎧⎫⎨⎬⎩⎭的公差为1，又11201811S a ==-，所以n S n ⎧⎫⎨⎬⎩⎭是以2018-为首项，1为公差的等差数列， 所以202020182019112020S =-+⨯=，所以20202020S =故选：C 8．（2020·河北路南·唐山一中）已知n S 是等差数列{}n a 的前n 项和，若12017a =-， 20142008620142008S S -=，则2017S =__________． 【答案】2017- 【解析】n S 是等差数列{}n a 的前n 项和， n S n ⎧⎫∴⎨⎬⎩⎭是等差数列，设其公差为d ，201420086,66,120142008S S d d -=∴==， 112017,20171S a =-∴=-，()()20172017112018,2018201720172017nS n n S n∴=-+-⨯=-+∴=-+⨯=-， 故答案为2017-．9．（2020·湖南怀化·高二期末）已知n S 是等差数列{}n a 的前n 项和，若12a =-，20202018220202018S S -=，则20192019S =________. 【答案】2016 【解析】n S 是等差数列{}n a 的前n 项和，n S n ⎧⎫∴⎨⎬⎩⎭是等差数列，设其公差为d .20202018 220202018S S -=，22d ∴=，1d =.12a =-，1S21∴=-. 2(1)13n S n n n ∴=-+-⨯=-.2019S20162019∴=.故答案为：2016.1．（2020·安徽铜陵·）设n S 是公差不为零的等差数列{}n a 的前n 项和，且10a >，若59S S =，则当n S 最大时，n=（ ） A ．6 B ．7C ．10D ．9【答案】B【解析】由等差数列中，59S S =，可得，故，其中，可知当时，最大．2．（2020·河北运河·沧州市一中月考）等差数列{}n a 中，10a >，201520160a a +>，201520160a a <，则使前n 项和0n S >成立的最大自然数n 是（ ） A ．2015 B ．2016C ．4030D ．4031【答案】C【解析】由题意知201520160,0a a ><，所以14030201520160a a a a +=+>，而14031201620a a a +=<，则有()140304*********a a S ⨯+=>，而()140314031403102a a S ⨯+=<，所以使前n 项和0n S >成立的最大自然数n 是4030，故选C ．3．（2020·河北路南·唐山一中期末）已知等差数列{}n a 的前n 项和为n S ，且856a a -=-，9475S S -=，题组四 前n 项和S n 的最值则n S 取得最大值时n =（ ） A ．14 B ．15C ．16D ．17【答案】A【解析】设等差数列{}n a 的公差为d ，则11369364675d a d a d =-⎧⎨+--=⎩，解得1227d a =-⎧⎨=⎩，故292n a n =-，故当114n ≤≤时，0n a >；当15n ≥时，0n a <， 所以当14n =时，n S 取最大值.故选：A.4．（2020·广西南宁三中开学考试）已知等差数列{}n a 的通项公式为29n a n =-，则使得前n 项和n S 最小的n 的值为（ ） A ．3 B ．4C ．5D ．6【答案】B【解析】由290n a n =-≤，解得92n ≤，14n ∴≤≤时，0n a <；5n ≥时，0n a > 则使得前n 项和n S 最小的n 的值为4故选：B5．（2020·四川青羊·石室中学高一期末）在等差数列{}n a 中，其前n 项和是n S ，若90S >，100S <，则在912129,,,S S S a a a ⋯中最大的是（ ） A ．11S aB ．88S aC ．55S aD ．99S a【答案】C 【解析】由于191109510569()10()9050222a a a a S a S a a ++====+＞，（）＜ ，所以可得5600a a ＞，＜． 这样569121256900...0,0,...0S S S S S a a a a a ，，，>>><<，而125125S S S a a a ⋯⋯＜＜＜，＞＞＞>0， ， 所以在912129...S S S a a a ，，，中最大的是55S a ．故选C ．6．（2020·福建宁德·期末）公差为d 的等差数列{}n a ，其前n 项和为n S ，110S >，120S <，下列说法正确的有（ ） A ．0d < B ．70a >C ．{}n S 中5S 最大D ．49a a <【答案】AD【解析】根据等差数列前n 项和公式得：()111111102a a S +=>，()112121202a a S +=<所以1110a a +>，1120a a +<， 由于11162a a a +=，11267a a a a +=+，所以60a >，760a a <-<，所以0d <，{}n S 中6S 最大，由于11267490a a a a a a +=+=+<，所以49a a <-，即：49a a <.故AD 正确，BC 错误.故选：AD.7．（2020·黑龙江让胡路·大庆一中高一期末）已知等差数列{}n a 的前n 项和为n S ，若780a a +>，790a a +<则n S 取最大值时n 的值是（ ） A ．4 B ．5C ．6D ．7【答案】D【解析】等差数列{}n a 的前n 项和为n S ，且780a a +>，790a a +<，12130a d ∴+>且12140a d +<，10,0,a d ∴><且780,0a a ><，所以当S n 取最大值时7n =.故选：D8．（2020·浙江其他）已知等差数列{}n a 的前n 项和n S ，且34S =，714S =，则23n n S a +-最小时，n 的值为（ ）. A ．2 B ．1或2C ．2或3D ．3或4【答案】C【解析】设等差数列{}n a 的公差为d ，因为34S =，714S =，所以1132342767142a d a d ⨯⎧+=⎪⎪⎨⨯⎪+=⎪⎩，解得11a =，13d =，所以2223(1)11550[1(2)]23318n n n n n n S an n +----=+⨯-++=， 因为n ∈+N ，所以当2n =或3n =时，其有最小值.选：C1．（2020·山西大同·高三其他（理））若等差数列{}n a 的前n 项和为n S ，已知129,a a Z =∈，且()5*n S S n N ≤∈，则12n a a a +++=________.【答案】2210,51050,5n n n n n n ⎧-≤⎨-+>⎩【解析】∵等差数列{}n a 的前n 项和为n S ，129,a a Z =∈，且5n S S ≤，56940,950a d a d ∴=+≥=+<， 2,2a Z d ∈∴=-，2(1)9(2)102n n n S n n n -∴=+⨯-=-， ∴当5n ≤时，212..10n a a a n n ++⋯+=-；当5n >时，()()21212345210n a a a a a a a a n n++⋯⋯+=++++--()222105510n n =⨯-+-21050n n =-+，212210,5..1050,5n n n n a a a n n n ⎧-≤∴++⋯+=⎨-+>⎩.故答案为：2210,51050,5n n n n n n ⎧-≤⎨-+>⎩. 2．（2020·黑龙江香坊·哈尔滨市第六中学校高三三模（理））已知等差数列{}n a 前三项的和为3-，前三项的积为15，（1）求等差数列{}n a 的通项公式；（2）若公差0d >，求数列{}n a 的前n 项和n T .题组五 含有绝对值的求和【答案】（1）49n a n =-或74n a n =-（2）25,1{2712,2n n T n n n ==-+≥【解析】（1）设等差数列的{}n a 的公差为d 由1233a a a ++=-，得233a =-所以21a =- 又12315a a a =得1315a a =-，即1111(2)15a d a a d +=-⎧⎨+=-⎩所以154a d =-⎧⎨=⎩，或134a d =⎧⎨=-⎩即49n a n =-或74n a n =- （2）当公差0d >时，49n a n =-1）当2n ≤时，490n a n =-<，112125,6T a T a a =-==--= 设数列{}n a 的前项和为n S ，则2(549)272n n S n n n -+-=⨯=-2）当3n ≥时，490n a n =->123123n n n T a a a a a a a a =++++=--+++()()123122n a a a a a a =++++-+2222712n S S n n =-=-+当1n =时，15T =也满足212171127T ≠⨯-⨯+=， 当2n =时，26T =也满足222272126T =⨯-⨯+=，所以数列{}n a 的前n 项和25127122n n T n n n =⎧=⎨-+≥⎩ 3．（2020·全国高三（文））在等差数列{}n a 中，28a =，64a =-. （1）求n a 的通项公式； （2）求12||||||n n T a a a =+++的表达式.【答案】（1）314n a n =-+；（2）2232542232552522n n n n T n n n ⎧-+≤⎪⎪=⎨⎪-+≥⎪⎩. 【解析】（1）设公差为d ，则11854a d a d +=⎧⎨+=-⎩，解得111a =，3d =-，所以314n a n =-+.（2）由314n a n =-+0≥可得4n ≤， 所以当4n ≤时，112()(11314)22n n n n a a n n T a a a +-+=+++===232522n n -+， 当5n ≥时，12345()n n T a a a a a a =+++-++1234122()()n a a a a a a a =+++-+++114()4()222n n a a a a ++=⨯-(253)522n n -=-23255222n n =-+. 所以2232542232552522n n n n T n n n ⎧-+≤⎪⎪=⎨⎪-+≥⎪⎩. 4．（2020·石嘴山市第三中学高三其他（理））已知数列{}n a 满足：313a =-，()141,n n a a n n N -=+>∈. （1）求1a 及通项n a ；（2）设n S 是数列{}n a 的前n 项和，则数列1S ，2S ，3S ，…n S …中哪一项最小？并求出这个最小值. （3）求数列{}n a 的前10项和.【答案】（1）121a =-，425n a n =-；（2）6S 最小，666S =-；（3）前10项和为：102. 【解析】（1）()142n n a a n -=+≥，∴当3n =时，324a a =+，217a =-，214a a =+，121a =-，由14n n a a --=知数列为首项是21-，公差为4的等差数列， 故425n a n =-；（2）425n a n =-，故610a =-<，730a =>，故6S 最小，()6656214662S ⨯=⨯-+⨯=-； （3）当16n ≤≤时，0n a <；当7n ≥时，0n a >，()()10121012678910……T a a a a a a a a a a ∴=+++=-+++++++()()()61061061092102142661022S S S S S ⨯=-+-=-=⨯-+⨯-⨯-=. 5．（2020·湖北武汉）已知数列{}n a 是等差数列，公差为d ，n S 为数列{}n a 的前n 项和，172a a +=-，315S =. （1）求数列{}n a 的通项公式n a ； （2）求数列{}n a 的前n 项和T n .【答案】（1）()*311n a n n N =-+∈；（2）2(193),3231960,42n n n n T n n n -⎧≤⎪⎪=⎨-+⎪≥⎪⎩. 【解析】（1）∵{}n a 是等差数列，公差为d ，且172a a +=-，315S =，∴11262323152a d a d +=-⎧⎪⎨⨯+=⎪⎩，解得18a =，3d =-， ∴()()()11813311n a a n d n n =+-=+--=-+， ∴数列{}n a 的通项公式为：()*311n a n n N=-+∈.（2）令0n a ≥，则3110n -+≥，∴311n ≤，∴233n ≤，*n N ∈. ∴3n ≤时，0n a >；4n ≥时，0n a <， ∵18a =，311n a n =-+，∴3n ≤时，12(8311)2n n n n T a a a -+=++⋅⋅⋅+=()1932n n -=， 当4n ≥时，()121234n n n T a a a a a a a a =++⋅⋅⋅+=+++--⋅⋅⋅-()()12312322n n a a a a a a S S =++-++⋅⋅⋅+=-23(199)(193)319602222n n n n ⨯---+=⨯-=.∴2(193),3231960,42n n n n T n n n -⎧≤⎪⎪=⎨-+⎪≥⎪⎩. 6．（2020·任丘市第一中学）在公差是整数的等差数列{}n a 中，17a =-，且前n 项和4n S S ≥． （1）求数列{}n a 的通项公式n a ；（2）令n n b a =，求数列{}n b 的前n 项和n T ．【答案】（1）29n a n =-；（2）()228,4832,5n n n n T n N n n n *⎧-+≤=∈⎨-+≥⎩. 【解析】（1）设等差数列{}n a 的公差为d ，则d Z ∈，由题意知，{}n S 的最小值为4S ，则4500a a ≤⎧⎨≥⎩，17a =-，所以370470d d -≤⎧⎨-≥⎩，解得7743d ≤≤，d Z ∈，2d ∴=，因此，()()1172129n a a n d n n =+-=-+-=-； （2）29n n b a n ==-.当4n ≤时，0n a <，则n n n b a a ==-，()272982n n n n T S n n -+-∴=-=-=-+；当5n ≥时，0n a >，则n n n b a a ==，()22428216832n n T S S n n n n ∴=-=--⨯-=-+.综上所述：()228,4832,5n n n n T n N n n n *⎧-+≤=∈⎨-+≥⎩.。
(新教材)2020-2021学年上学期高二第二次月考备考金卷 英语(A卷)学生版
（新教材）2020-2021学年上学期高二第二次月考备考金卷英 语 （A ）注意事项：1.答题前，先将自己的姓名、准考证号填写在试题卷和答题卡上，并将准考证号条形码粘贴在答题卡上的指定位置。
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第一部分 阅读（共两节，满分50分）第一节（共15小题；每小题2.5分，满分37.5分）阅读下列短文，从每题所给的A 、B 、C 、D 四个选项中选出最佳选项。
AThere are about 7,500 apple varieties in the world. While 2,500 of those varieties are being grown in the United States, the Gala, Fuji, and Honeycrisp varieties occupy American market. Instead of sticking to the familiar, here are other delicious apples to try this fall. These special fruits will be the apple of your eye.Cosmic CrispA cross between Honeycrisp and Enterprise, the Cosmic Crisp takes the best qualities of both of these apples and combines them into a delicious and juicy apple. It’s perfect eaten plain, but when used in an apple pie, it maintains its firmness, making it a great apple for baking.Swee TangoThe Swee Tango, as a cross between a Honeycrisp and a Zestar apple, takes on flavors of honey and a bit of orange. Usually in apple recipes, other materials are added to improve the apple flavor, but the Swee Tango stands strong on its own. So it’s the perfect apple for apple -centric dishes such as apple pie, and even baked apples.Ginger GoldWith a golden -green color, the Ginger Gold apple is pretty mild in flavor with a bit of ginger as mentioned in its name. This variety is fully grown a bit earlier than most other apples with their seasonbeginning as early as August. So, if you’re eager for fall, then the Ginger Gold is the perfect apple to start baking your favorite fall treats.RubyFrostGrown classically as one of American varieties, the RubyFrost allows apple lovers the chance to enjoythis sweet fruit through the winter months. Not only can the RubyFrost stand a bit of cold weather, they reach their finest flavor during the winter months, making it a great, late season apple. 1．What do Cosmic Crisp and Swee Tango have in common? A ．They are of the same flavor. B ．They have one same parent. C ．They remain firm after baking. D ．They are strongly flavored.2．How is Ginger Gold named? A ．By its colour and flavor. B ．By its harvest season. C ．By its usage for baking.D ．By its parents.3．Which one may be the best choice for New Year celebrations in America? A ．Cosmic Crisp.B ．RubyFrost.C ．Ginger Gold.D ．Swee Tango.BWhen Faith Wanjiku graduated from the Technical University of Kenya last year, she immediately enrolled (注册) at the Confucius Institute in Kenyatta University. She wanted to learn Chinese, as she believed that it would help her have a good job.She has just completed the Hanyu Shuiping Kaoshi (HSK) 3 exam. HSK is a test of Chinese language level for non -native speakers, organized by the Confucius Institute Headquarters.However, this level isn’t enough for Wanjiku, who plans to pass HSK 6. She wanted to increase her level of Chinese and improve her spoken Chinese. And Wanjiku isn’t alone. The number of people taking the HSK reached 6.8 million in 2018 and went up 4.6 percent from a year earlier, the Ministry of Education said on May 31.Chinese is becoming an increasingly popular choice of language to study around the world. Currently, middle school students in Russia can take Chinese as an elective language test in the country’s national college entrance exam, Sputnik News reported.In May, Zambia became the fourth country in Africa -after Kenya, Uganda and South Africa—to introduce Chinese language to its schools.And many English -speaking countries have shown an interest in allowing their students to learn Chinese. The US government announced the launch of “1 Million Strong” in 2015, a plan that aims to bring the total number of learners of Chinese to l million by 2020.Behind the growing popularity of Chinese language learning is the international community’s positive attitude toward Chinas future development, as well as the people’s longing to learn about Chinese civilization此卷只装订不密封班级 姓名 准考证号 考场号 座位号。
湖南省湖湘教育三新探索协作体2020-2021学年高二11联考(期中)英语答案
高二英语参考答案（详答）第一部分听力1—5 ABABC 6—10 BACCA11—15 ABCBC 16—20 BCCBA第二部分阅读21—23 CCA 24—27 ACBD28—31 BBDA 32—35 ADCB 36—40 BGFEC A篇主题语境：人与自我——生活与学习本文是应用文。
文章介绍了美国神秘水族馆的四个活动。
21. C。
细节理解题。
根据Family Overnight部分中的Prices: Adult ($65.00) Child ($55.00) 可知，一对夫妻加一个孩子参加该活动的费用是：$65.00+$65.00+$55.00+=$185。
22. C。
细节理解题。
四个活动中，只有Trainer Days 在下午1:00 pm—4:30 pm的活动。
23. A。
细节理解题。
根据最后一句Top fund-raisers receive special prizes!“居首的资金募集者可获得特别奖”可知。
B篇主题语境：人与社会——文学本文是夹叙夹议文。
作者讲述了自己在中学时与诗歌结下的不解之缘。
24. A。
推理判断题。
由第二段中的Mr. Katz is trying to loosen up our adolescent imaginations to the point where we might appreciate figurative language可知，Mr. Katz 是在努力激发学生对诗歌的兴趣。
25. C。
推理判断题。
由第四段中的“Poetry provides the one permissible way of saying one thing and meaning another,” Robert Frost explained可知，Robert Frost认为诗歌允许创作者表达一些隐含的意思。
26. B。
推理判断题。
由最后一段中的when Mr. Katz carefully brought us into a new field —a moment that got me out of middle school mundanity. Even the dance on Friday and my drum lesson on Wednesday afternoon paled in comparison可知，中学时期的语言艺术课程是无与伦比的。
2022-2023学年陕西省榆林市第二中学高二上学期10月期中考试数学(理)试题(解析版)
2022-2023学年陕西省榆林市第二中学高二上学期10月期中考试数学（理）试题一、单选题1．设命题2:,21p x Z x x ∃∈≥+，则p 的否定为（ ） A ．2,21x Z x x ∀∉<+ B ．2,21x Z x x ∀∈<+ C ．2,21x Z x x ∃∉<+ D ．2,2x Z x x ∃∈<【答案】B【分析】由特称命题的否定可直接得到结果.【详解】命题2:,21p x Z x x ∃∈≥+，则p 的否定为：2,21x Z x x ∀∈<+. 故选：B【点睛】全称量词命题的否定是特称（存在）量词命题，特称（存在）量词命题的否定是全称量词命题．2．已知x ，y 的取值如下表所示：若y 与x 线性相关，且0.95y x a =+，则=a （ ）A ．2.2 B ．2.9C ．2.8D ．2.6【答案】D【分析】利用平均数可得样本的中心点为()2,4.5，将中心点对应的值代入题目中的等式即可求出a 的值.【详解】由表格，得()1013424x =+++=， ()12.2 4.3 4.8 6.7 4.54y =+++=， 线性回归直线过样本中心点()2,4.5， 所以4.50.952a =⨯+，所以 2.6a =. 故选：D3．从装有两个红球和两个黑球的口袋内任取两个球，现有如下说法：①至少有一个黑球与都是黑球是互斥而不对立的事件；②至少有一个黑球与至少有一个红球不是互斥事件；③恰好有一个黑球与恰好有两个黑球是互斥而不对立的事件；④至少有一个黑球与都是红球是对立事件.在上述说法中，正确的个数为（ ） A ．1 B ．2C ．3D ．4【答案】C【分析】利用互斥事件和对立事件的定义逐个判断即可【详解】①“至少有一个 黑球”等价于“一个黑球和一个红球或两个黑球”与“都是黑球”可以同时发生，不是互斥事件，故错误.②“至少有一个黑球”等价于“一个黑球和一个红球或两个黑球”，“至少有一个红球”等价于“一个黑球和一个红球或两个红球”，可以同时发生，故正确.③“恰好有一个黑球”等价于“一个黑球和一个红球”，与“恰好有两个黑球”，不同时发生，还有可能都是红球，不是对立事件，故正确.④“至少有一个黑球”等价于“一个黑球和一个红球或两个黑球”，与“都是红球”，不同时发生，但一定会有一个发生，是对立事件，故正确.上述说法中，正确的个数为3. 故选：C【点睛】此题考查互斥事件和对立事件的判断，属于基础题 4．点(1,1)M 到抛物线2y ax =的准线的距离为2，则=a （ ） A ．112-B ．11124-或 C ．14D ．124-或【答案】B【分析】根据抛物线的准线方程的公式结合抛物线的开口分类讨论求解.【详解】由题可得抛物线方程为: 21x y a =，所以12p a=， 若0a >，则抛物线开口向上，准线为124p y a=-=-， 所以点(1,1)M 到准线的距离为1124a +=解得14， 若a<0，则抛物线开口向下，准线为124p y a=-=-， 所以点(1,1)M 到准线的距离为1124a +=解得14a =（舍）或112a =-， 故选:B.5．某高中学校为了促进学生个体的全面发展，针对学生发展要求，开设了富有地方特色的“泥塑”与“剪纸”两个社团．已知报名参加这两个社团的学生共有800人，按照要求每人只能参加一个社团，各年级参加社团的人数情况如下表：高一年级高二年级高三年级泥塑 a b c剪纸x y z其中x：y：z＝5：3：2，且“泥塑”社团的人数占两个社团总人数的35．为了了解学生对两个社团活动的满意程度，从中抽取一个容量为50的样本进行调查，则从“剪纸”社团的高二年级学生中应抽取的人数为（）A．4 B．6 C．9 D．10【答案】B【分析】先按分层抽样求出高二年级人数，再按样本占总体的比例得解.【详解】因为“泥塑”社团的人数占总人数的35，所以“剪纸”社团的人数占总人数的25，人数为28003205⨯=．因为“剪纸”社团中高二年级人数比例为3353210 yx y z==++++，所以“剪纸”社团中高二年级人数为3 3209610⨯=．以从“剪纸”社团的高二年级学生中抽取的人数为501 9696=680016⨯=⨯．故选：B.6．执行如下所示的程序框图，则输出的a=（）A．2 B．1 C．-1D．12【答案】D【分析】由初始条件进入循环体，求出每一次a 的值，可以发现规律，最后求出答案.【详解】11,2n a ==；2,1n a ==-；3,2n a ==；14,2n a ==；…，a 的值构成以3为周期的数列，因为202036731=⨯+，所以当2020n =时，12a =. 故选：D【点睛】本题考查了循环结构的输出问题，考查了数列的周期性，考查了数学运算能力. 7．已知命题p ：x ∀∈R ，23x x <；命题q ：x ∃∈R ，321x x =-，则下列命题中为真命题的是： A ．p q ∧ B ．p q ⌝∧ C ．p q ∧⌝ D ．p q ⌝∧⌝【答案】B【详解】0x =可知: 命题p ：x ∀∈R ，23x x <为假命题，由函数图象可知命题32:,1q x R x x ∃∈=-为真命题，所以p q ⌝∧为真命题． 【解析】命题的真假判断．8．已知12F F ，分别是双曲线E :2222100x y a b a b-=>>（，）的左、右焦点，点M 在双曲线E 上，1MF 与x 轴垂直，21s 13in MF F =∠，则双曲线E 的离心率为（ ）A ．32BCD ．2【答案】B【分析】根据直角三角形边与角的关系可得213MF MF =，再利用双曲线的定义可求出12,3MF a MF a ==，利用勾股定理即可求解.【详解】在直角三角形12MF F 中，12121sin 3MF MF F MF ∠==,所以213MF MF =， 根据双曲线的定义可知21122MF MF MF a -==， 所以12,3MF a MF a ==，所以在直角三角形12MF F 中由勾股定理得22249a c a +=， 则222c a=，所以c e a ==故选:B.9．已知抛物线24y x = ， 过焦点F 的直线与抛物线交于A ，B 两点，过A ，B 分别作y 轴的垂线，垂足分别为C ，D ， 则||||AC BD +的最小值为（ ）A ．32B ．2C ．3D ．5【答案】B【分析】根据抛物线的定义可得2AC BD AB +=-，直线与抛物线联立求出焦点弦长，讨论最值求解.【详解】因为抛物线为24y x =，所以2p =，焦点(1,0)F 设()()1122,,,A x y B x y ， 根据抛物线的定义可得122p p AC x AF +=+=，222p pBD x BF +=+=， 所以AC BD p AF BF ++=+，所以2AC BD AF BF +=+-,即2AC BD AB +=-因为过F 的直线与抛物线交于A ，B 两点，所以直线的斜率不等于0， 设为1x my =+，联立241y xx my ⎧=⎨=+⎩，得2440y my --=，所以124y y m +=，212121211()242x x my my m y y m +=+++=++=+，所以212124422p pAB AF BF x x x x p m =+=+++=++=+， 所以当且仅当0m =时AB 有最小值为4， 则2AC BD AB +=-有最小值为2. 故选:B.10．如图，“天宫三号”的运行轨道是以地心（地球的中心）F 为其中一个焦点的椭圆．已知它的近地点A （离地面最近的点）距地面m 千米，远地点B （离地面最远的距离）距离地面n 千米，并且F ，A ，B 在同一条直线上，地球的半径为R 千米，则“天宫三号”运行的轨道的短轴长为（ ）千米A ．2mnB ()()m R n R ++C ．mnD ．【答案】D【分析】根据题设条件可求椭圆的长半轴长和焦距的关系式，从而可求短半轴长. 【详解】由题设条件可得FB n R =+，FA R m =+，设椭圆的半长轴长为a ，半焦距为c ，则a c n R +=+，a c R m -=+，故短半轴长为b =所以短轴长为故选：D.11．设e 是椭圆2214x yk+=的离心率，且1,12e ⎛⎫∈ ⎪⎝⎭，则实数k 的取值范围是（ ）A ．()0,3B ．1633,⎛⎫⎪⎝⎭C ．()160,3,3⎛⎫+∞ ⎪⎝⎭ D ．16,3⎛⎫+∞ ⎪⎝⎭【答案】C【分析】对k 分类讨论，确定焦点的位置，求椭圆的离心率，从而可求实数k 的取值范围. 【详解】由椭圆方程2214x y k+=， 当04k <<时，24a =，2b k =，24c k =-， 所以22244c ke a -==，由1,12e ⎛⎫∈ ⎪⎝⎭，解得03k <<，当4k >时，2a k =，24b =，24c k =-，所以2224c k e a k-==，由1,12e ⎛⎫∈ ⎪⎝⎭，解得163k >，故实数k 的取值范围为()160,3,3⎛⎫+∞ ⎪⎝⎭.故选：C.【点睛】本题考查椭圆的标准方程与几何性质，考查分类讨论的数学思想，考查计算能力，属于基础题.12．已知点P 为双曲线22221(0,0)x y a b a b-=>>上任意一点，1F 、2F 为其左、右焦点，O 为坐标原点．过点P 向双曲线两渐近线作垂线，设垂足分别为M 、N ，则下列所述错误的是（ ） A ．PM PN ⋅为定值B ．O 、P 、M 、N 四点一定共圆C ．12PF PF ⋅的最小值为2b -D ．存在点P 满足P 、M 、1F 三点共线时，P 、N 、2F 三点也共线 【答案】D【分析】对于A ，设()00,P x y ，表示出||||PM PN ，，即可判断A ；对于B ，由题目可得，M ，N 两点在以OP 为直径的圆上，故可判断B ；对于C ，由双曲线的对称性可知2212||PF PF PO c ⋅=-， 由22||PO a ≥，故可判断C ；对于D ，利用双曲线的对称性，不妨设直线1F N 垂直一条渐近线，垂足为N ；直线2F M 垂直另一条渐近线且交双曲线于点P ，易知直线1F N 与直线2F M 的交点始终落在y 轴上，可判断D.【详解】解：设()00,P x y ，点()00,P x y 到渐近线by x a =的距离为0022bx ay PM b α-=+， 同理2020||bx ay PN a b+=+，则22220022b x a y PM PN a b-⋅=+，∵2200221x y a b-=，即22222200b x a y a b -=， ∴2222a b PM PN a b ⋅=+（定值），故A 正确；∵90OMP ONP ∠=∠=，∴OMP 和ONP △均为直角三角形，M ，N 两点在以OP 为直径的圆上，故B 正确；由双曲线的对称性可知()()222212111PF PF PO OF PO OF PO OF PO c ⋅=+⋅-=-=-，其中222c a b =+，∵22PO a ≥∴22212PF PF a c b ≥--⋅=成立，故C 正确；如图利用双曲线的对称性，不妨设直线1F N 垂直一条渐近线，垂足为N ；直线2F M 垂直另一条渐近线且交双曲线于点P ，易知直线1F N 与直线2F M 的交点始终落在y 轴上，故D 不正确.故选：D.二、填空题13．双曲线2212x y -=的渐近线方程为_________.【答案】2y = 【分析】由双曲线方程得2,1a b ==，再计算渐近线方程.【详解】由2212x y -=，得2,1a b =，故渐近线方程为22y ==， 故答案为：22y x = 14．下列命题正确的是_________.（填入序号）①若命题p 为假命题，命题q 是真命题，则()()p q ⌝∨⌝为真命题. ②命题“若a 与b 的夹角为锐角，则0a b ⋅>”及它的逆命题均为真命题.③命题“若20x x +=，则0x =或=1x -”的逆否命题为“若0x ≠且1x ≠-，则20x x +≠”. 【答案】①③【分析】通过命题的性质一一判定即可. 【详解】对于①：命题p 为假命题，命题q 是真命题， 则命题p ⌝为真命题，命题q ⌝为假命题，对于()()p q ⌝∨⌝有真为真，则()()p q ⌝∨⌝为真命题； 对于②：命题“若a 与b 的夹角为锐角，则0a b ⋅>”中， 当a 与b 的夹角为锐角，则cos ,0a b >，则cos ,0a b a b a b ⋅=⋅>， 则原命题为真命题，它的逆命题“若0a b ⋅>，则a 与b 的夹角为锐角”中， 当0a b ⋅>，则cos ,0a b a b a b ⋅=⋅>， 则cos ,0a b >，则a 与b 的夹角为锐角或0， 则它的逆命题为假命题； 对于③：对于命题“若20x x +=，则0x =或=1x -”， 它的逆否命题为“若0x ≠且1x ≠-，则20x x +≠”； 综上所述：①③正确， 故答案为：①③.15．设a 为实常数，()y f x =是定义在R 上的奇函数，当0x <时，()297ax f xx =+-，若“[)01x f x a ∃∈+∞<+，，（）”是假命题，则实数a 的取值范围为________. 【答案】8,7⎛⎤-∞- ⎥⎝⎦【分析】先利用()y f x =是定义在R 上的奇函数求出x≥0函数的解析式,再根据“[)0()1x f x a ∃∈+∞<+，，”是假命题，可得该命题的否定是真命题，即()1f x a ≥+对一切0x ≥成立，利用基本不等式求出()f x 的最小值,解不等式求出a 的范围.【详解】因为()y f x =是定义在R 上的奇函数，所以当0x =时,()0f x =； 当0x >时,则0x -<,所以2()97a f x x x-=--+.所以()()297a f x f x x x=--=+-.因为()1f x a ≥+对一切0x ≥成立， 所以当0x =时,01a ≥+成立,所以1a ≤-；当0x >时,2971a x a x +-≥+成立,只需要2min971a x a x ⎛⎫+-≥+ ⎪⎝⎭,因为229729767a a x x a x x +-≥⨯-=-，所以671a a -≥+,解得：85a ≥或87a ≤-；综上所述：87a ≤-.故a 的取值范围为8,7⎛⎤-∞- ⎥⎝⎦.三、双空题16．椭圆22110036x y +=上一点P 满足到左焦点1F 的距离为8，则点P 到右焦点的距离为________，12F PF ∆的面积是________【答案】 12 15【分析】由椭圆定义可知122PF PF a +=，可得212PF =；结合余弦定理算得12os 14c P F F =-∠，再结合面积公式求解.【详解】由22110036x y +=，则10,6,8a b c ===，1216F F = 故12220PF PF a +==，且18PF =，则212PF =； 22212121212641442561cos 228124PF PF F F F PF PF PF +-+-∠===-⋅⨯⨯,1221151sin 4F F P ⎛⎫=-- ⎪⎝⎭∠ 12Δ115812152F PF S =⨯⨯= 故答案为：12，1215四、解答题17．在① A B ⋂=∅；②“x A ∈“是“x B ∈”的充分不必要条件；③A B B ⋃=这三个条件中任选一个，补充到本题第（2）问的横线处，求解下列问题.问题：已知集合{|},111|3{}A x a x a B x x =-≤≤=≤≤-+. (1)当2a =时，求A ∪B ；(2)若_______，求实数a 的取值范围. 【答案】(1){|13}B x x A -≤≤⋃= (2)答案见解析【分析】（1）由并集运算求解即可；（2）选①：由交集运算的结果列出不等式，得出实数a 的取值范围.选②：由A 是B 的真子集，结合包含关系得出实数a 的取值范围.选③：由A B ⊆，结合包含关系得出实数a 的取值范围. 【详解】（1）当2a =时，集合1313{|},{|}A x x B x x =≤≤=≤≤-， 所以{|13}B x x A -≤≤⋃=. （2）若选择①A B ⋂=∅，因为11{|}A x a x a =-≤≤+，所以A ≠∅，又{|13}B x x =-≤≤，所以13a ->或11a +<-，解得4a >或2a <-， 所以实数a 的取值范围是()(),24,-∞-+∞.若选择②，“x A ∈“是“x B ∈”的充分不必要条件，则,A B A B ⊆≠， 因为11{|}A x a x a =-≤≤+，所以A ≠∅，又{|13}B x x =-≤≤，所以1113a a -≥-⎧⎨+<⎩或1113a a ->-⎧⎨+≤⎩解得02a ≤≤，所以实数a 的取值范围是[]0,2. 若选择③A B B ⋃=，则A B ⊆，因为11{|}A x a x a =-≤≤+ ，所以A ≠∅，又{|13}B x x =-≤≤，所以1113a a -≥-⎧⎨+≤⎩，解得02a ≤≤，所以实数a 的取值范围是[]0,2.18．已知集合{}{}34,211A x x B x m x m =-≤<=-≤≤+ （1）若B A ⊆，求实数m 的取值范围.（2）命题q ：“x A ∃∈，使得x B ∈”是真命题，求实数m 的取值范围. 【答案】（1）1m ≥-；（2）[4,2]-.【分析】（1）B A ⊆，分B 为空集和B 不是空集两种情况讨论求解即可；（2）由x A ∃∈，使得x B ∈，可知B 为非空集合且A B ⋂≠∅，然后求解A B ⋂=∅的情况，求出m 的范围后再求其补集可得答案【详解】解：（1）①当B 为空集时，121,2m m m +<->成立. ②当B 不是空集时，∵B A ⊆，12121314m m m m +≥-⎧⎪-≥-⎨⎪+<⎩，∴12m -≤≤综上①②，1m ≥-.（2）x A ∃∈，使得x B ∈，∴B 为非空集合且,121,2A B m m m ≠∅+≥-≤.当A B ⋂=∅时2142m m -≥⎧⎨≤⎩，无解或132m m +<-⎧⎨≤⎩，4m <-，∴,[4,2]A B m ≠∅∈-.19．下表是某高校2017年至2021年的毕业生中，从事大学生村官工作的人数：经过相关系数的计算和绘制散点图分析，我们发现y 与x 的线性相关程度很高． (1)根据上表提供的数据，用最小二乘法求出y 关于x 的经验回归方程ˆˆˆybx a =+； (2)根据所得的经验回归方程，预测该校2023年的毕业生中，去从事大学生村官工作的人数．参考公式：()()()1122211ˆn niii ii i nniii i x x y y x y nxybx x xnx ====---==--∑∑∑∑，ˆˆay b x =-⋅． 【答案】(1)ˆ 1.50.5yx =+ (2)11人【分析】（1）利用最小二乘法计算可得经验回归方程； （2）将7x =代入经验回归方程即可求得所求预估值. 【详解】（1）由表格数据知：1234535x ++++==，2447855y ++++==，512812284090i ii x y==++++=∑，521149162555i i x ==++++=∑，90535ˆ 1.55559b-⨯⨯∴==-⨯，ˆ5 1.530.5a ∴=-⨯=，y ∴关于x 的经验回归方程为：ˆ 1.50.5y x =+.（2）2023年对应的7x =，则ˆ 1.570.511y=⨯+=， 即该校2023年的毕业生中，去从事大学生村官工作的人数约为11人.20．2022年9月30日至10月9日，第56届国际乒联世界乒乓球团体锦标赛在成都市高新区体育中心举行．某学校统计了全校学生在国庆期间观看世乒赛中国队比赛直播的时长情况（单位：分钟），并根据样本数据绘制得到如图所示的频率分布直方图．(1)求频率分布直方图中a 的值，并估计样本数据的中位数；(2)采用以样本量比例分配的分层随机抽样方式，从观看时长在[]200,280的学生中抽取6人．现从这6人中随机抽取3人在全校交流观看体会，记“抽取的3人中恰有2人的观赛时长在[)200,240”为事件A ，求()P A ．【答案】(1)0.004a =，中位数为160；(2)35【分析】（1）先利用频率的和为1求出a ，利用频率分布直方图计算得观看时长在160分钟以下的样本所占比例为0.5，即可得到中位数；（2）利用分层抽样确定[)200,240，[]240,280应抽取的人数，对6人进行编号，用列举法写出任取3人的所有基本事件，得出事件A 的基本事件，计数后计算概率【详解】（1）由题意得400.00050.002220.0060.0065)1(a ⨯+⨯+++=,解得0.004a =， 由频率分布直方图可知,观看时长在160分钟以下的样本所占比例为()400.00050.0020.0040.0060.5⨯+++=，所以样本数据的中位数为160；（2）由题意，观看时长在[)200,240，[]240,280对应的频率分别为0.004400.16⨯=和0.002400.08⨯=，所以采用分层随机抽样的方式在这两个区间中应分别抽取4人和2人，设观看时长在[)200,240的4人为,,,A B C D ，观看时长在[]240,280的2人为,E F ， 从中抽取3人的基本事件有：,,,,,,,ABC ABD ABE ABF ACD ACE ACF ,,,,,,ADE ADF AEF BCD BCE BCF ,,,,,,BDE BDF BEF CDE CDF CEF DEF 共20个，其中事件A 的基本事件有,,,,ABE ABF ACE ACF ,,,,ADE ADF BCE BCF ,,,BDE BDF CDE CDF 共12个，所求概率为()123205P A == 21．已知抛物线2:2(0)C y px p =>的焦点F 到准线的距离为2． （1）求C 的方程;（2）已知O 为坐标原点，点P 在C 上，点Q 满足9PQ QF =，求直线OQ 斜率的最大值. 【答案】（1）24y x =；（2）最大值为13.【分析】（1）由抛物线焦点与准线的距离即可得解；（2）设()00,Q x y ，由平面向量的知识可得()00109,10P x y -，进而可得20025910y x +=，再由斜率公式及基本不等式即可得解.【详解】（1）抛物线2:2(0)C y px p =>的焦点,02p F ⎛⎫⎪⎝⎭，准线方程为2p x =-，由题意，该抛物线焦点到准线的距离为222p p p ⎛⎫--== ⎪⎝⎭，所以该抛物线的方程为24y x =； （2）[方法一]：轨迹方程+基本不等式法 设()00,Q x y ，则()00999,9PQ QF x y ==--， 所以()00109,10P x y -，由P 在抛物线上可得()()200104109y x =-，即20025910y x +=，据此整理可得点Q 的轨迹方程为229525=-y x ，所以直线OQ 的斜率000220001025925910OQ y y y k y x y ===++， 当00y =时，0OQ k =； 当00y ≠时，0010925OQ k y y =+， 当00y >时，因为0092530y y +≥=， 此时103OQk <≤，当且仅当00925y y =，即035y =时，等号成立； 当00y <时，0OQ k <；综上，直线OQ 的斜率的最大值为13.[方法二]：【最优解】轨迹方程+数形结合法同方法一得到点Q 的轨迹方程为229525=-y x ． 设直线OQ 的方程为y kx =，则当直线OQ 与抛物线229525=-y x 相切时，其斜率k 取到最值．联立2,29,525y kx y x =⎧⎪⎨=-⎪⎩得22290525k x x -+=，其判别式222940525⎛⎫∆=--⨯= ⎪⎝⎭k ，解得13k =±，所以直线OQ 斜率的最大值为13．[方法三]：轨迹方程+换元求最值法同方法一得点Q 的轨迹方程为229525=-y x ． 设直线OQ 的斜率为k ，则22229525⎛⎫==- ⎪⎝⎭y k x x x． 令11009⎛⎫=<≤ ⎪⎝⎭t t x ，则2292255=-+k t t 的对称轴为59t =，所以21110,933≤≤-≤≤k k ．故直线OQ 斜率的最大值为13．[方法四]：参数+基本不等式法由题可设()24,4(0),(,)>P t t t Q x y ．因为(1,0),9=F PQ QF ，所以()24,49(1,)--=--x t y t x y ．于是249(1)49x t x y t y ⎧-=-⎨-=-⎩，所以21049104x t y t ⎧=+⎨=⎩则直线OQ 的斜率为2444194939424==≤=++⋅y t x t t t t t．当且仅当94t t=，即32t =时等号成立，所以直线OQ 斜率的最大值为13．【整体点评】方法一根据向量关系，利用代点法求得Q 的轨迹方程，得到直线OQ 的斜率关于y 的表达式，然后利用分类讨论，结合基本不等式求得最大值；方法二 同方法一得到点Q 的轨迹方程，然后利用数形结合法，利用判别式求得直线OQ 的斜率的最大值，为最优解；方法三同方法一求得Q 的轨迹方程，得到直线OQ 的斜率k 的平方关于x 的表达式，利用换元方法转化为二次函数求得最大值，进而得到直线OQ 斜率的最大值；方法四利用参数法，由题可设()24,4(0),(,)>P t t t Q x y ，求得x,y 关于t 的参数表达式，得到直线OQ 的斜率关于t 的表达式，结合使用基本不等式，求得直线OQ 斜率的最大值.22．已知椭圆()2222:10x y C a b a b+=>>的一个焦点为()5,0，离心率为53.（1）求椭圆C 的标准方程；（2）若动点()00,P x y 为椭圆外一点，且点P 到椭圆C 的两条切线相互垂直，求点P 的轨迹方程. 【答案】（1）22194x y +=；（2）220013x y +=.【详解】试题分析：（1）利用题中条件求出c 的值，然后根据离心率求出a 的值，最后根据a 、b 、c 三者的关系求出b 的值，从而确定椭圆C 的标准方程；（2）分两种情况进行计算：第一种是在从点P 所引的两条切线的斜率都存在的前提下，设两条切线的斜率分别为1k 、2k ，并由两条切线的垂直关系得到121k k =-，并设从点()00,P x y 所引的直线方程为()00y k x x y =-+，将此直线的方程与椭圆的方程联立得到关于x 的一元二次方程，利用0∆=得到有关k 的一元二次方程，最后利用121k k =-以及韦达定理得到点P 的轨迹方程；第二种情况是两条切线与坐标轴垂直的情况下求出点P 的坐标，并验证点P 是否在第一种情况下所得到的轨迹上，从而得到点P 的轨迹方程. （1）由题意知5533a a =⇒=，且有2235b -2b =，因此椭圆C 的标准方程为22194x y +=；（2）①设从点P 所引的直线的方程为()00y y k x x -=-，即()00y kx y kx =+-， 当从点P 所引的椭圆C 的两条切线的斜率都存在时，分别设为1k 、2k ，则121k k =-， 将直线()00y kx y kx =+-的方程代入椭圆C 的方程并化简得()()()222000094189360kx k y kx x y kx ++-+--=，()()()2220000184949360k y kx k y kx ⎡⎤⎡⎤∆=--⨯+--=⎣⎦⎣⎦， 化简得()2200940y kx k ---=，即()()22200009240x k kx y y --+-=，则1k 、2k 是关于k 的一元二次方程()()22200009240x k kx y y --+-=的两根，则201220419y k k x -==--， 化简得220013x y +=；②当从点P 所引的两条切线均与坐标轴垂直，则P 的坐标为()3,2±±，此时点P 也在圆2213x y +=上. 综上所述，点P 的轨迹方程为2213x y +=.【解析】本题以椭圆为载体，考查直线与圆锥曲线的位置关系以及动点的轨迹方程，将直线与二次曲线的公共点的个数利用∆的符号来进行转化，计算量较大，从中也涉及了方程思想的灵活应用.。
2025年陕西省榆林市横山区第二中学初三第二次诊断性考试英语试题含答案
2025年陕西省榆林市横山区第二中学初三第二次诊断性考试英语试题注意事项：1．答卷前，考生务必将自己的姓名、准考证号填写在答题卡上。
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Ⅰ. 单项选择1、--- The accident which happened on March 10, 2019 teaches us to care for ourselves and the people around us.--- So it does. , life is the most important to everyone.A．First of all B．Above all C．After all D．In all2、The Smiths welcomed us warmly and made us _________at home.A．felt B．feel C．feeling3、- The dress looks so _____ on you. -Yes, it fits me _____.A．well; good B．well; wel C．good; well D．good; good4、The general ____of the competition is much higher this year, so it's difficult for me to win the first prize.A．standard B．discussion C．exhibition D．instrument5、— __________is it from your home to school ? —About 20 minutes by bus.A．How long B．How far C．How soon D．How much6、Yoga is a kind of sport people around the world like now. Everyone, young and old does it.A．that B．who C．whose7、We are going to take the high-speed train to Xi'an tomorrow, so an early arrival at the station____________ . A．advises B．is advised C．is advising D．was advised8、一How is Peter getting along with his new work?一. You know, he is always the lucky dogA．Just so-so B．1 have no idea C．Ask him yourself D．Never better9、The bus will stop in front of the school.A．correct B．right C．correctly D．rightly10、They won’t allow us ______ at this beach.A．swimming B．to swim C．swam D．swimⅡ. 完形填空11、词语填空A hobby is a special interest or activity that people like to do in their free time. Most people in Britain have their own________.Some people train dogs to race or keep pigeons（鸽子） 1 carry messages. Some people are crazy about plants. They put all________of beautiful flowers in their kitchens or living rooms.________are mad about their cars or motorbikes. They spendtheir weekends 2 them, painting them or trying to make them go 3 than before. Children and teenagers are 4 in collecting things. They collect stamps,postcards,or pictures of a favorite pop star.5 something new is also people’s hobby. Some people go to evening classes to learn________or making bread. Some people learn these things by ________at home.1．A．hobbys B．hobby C．hobbies2．A．to B．for C．of3．A．kind B．kinds C．lot4．A．Other B．Others C．The others5．A．washing B．to wash C．washed6．A．fast B．faster C．more fast7．A．interesting B．interest C．interested8．A．Learn B．Learning C．Learnt9．A．dancing B．dance C．dancer10．A．themself B．himself C．themselvesⅢ. 语法填空12、Parents are the most important people in our life. They influence our lives in so many ways. They teach us almost everything about living, give us strength of character and make us who we are. It is because of them that we become able to do our duties. The things that we are able to do are actually their gifts to us. Right from taking care of us when we are young to guiding us whenever we need their advice, they are always there by our side.All we can do for them is to give them love and happiness and try to make them feel proud of us. First of all,you need to follow all the good things they taught you when you were very young. It could be about eating healthily or exercising in a regular way, or it could be about helping anyone who needs help.Not make complaints is also a good way. So don't complain about what you don't have. Learn to appreciate (感激) and love what your parents give you; you may not know the struggles they go through in order to giveyou that.Thirdly, you also need to start making your own decisions wisely and confidently. In other words, take controlof your life by deciding what will be good or bad for you. Let them see that you are able to do all kinds of things without asking others for help.More importantly, you should try to be a good person. Be polite and respectful to your family and friends.When they give you advice or a suggestion, you'd better take their ideas into consideration. Try to work as hard as you can and be modest with what you have achieved. Anyway, seeing you grow into a good person will surely make your parents proud.Making your parents feel proud of youWhat your parents can do for you●They teach you how to make a living and develop a strong character.●Your 1．to deal with things is a gift your parents give you.●They are always there to look after you and guide you.2．to make your parents feel proud of youFollow what you were taught.●Develop a healthy habit as your parents told you.●Help anyone in need.Don't complain.Appreciate and 3．with all the things givento you by your parents.Make decisions on your4．.Make your own decisions wisely and with 5．to show you are able to deal with everything.Be a good person.●Treat others politely and respectfully.●Listen to your parents' advice.●Work hard and not to be too proud of yourachievements.Ⅳ. 阅读理解A13、My friends and I had just finished lunch at a hotel when it started to rain heavily. When it became lighter, I decided to get my car which was parked at my office three streets away.My friends argued that I shouldn’t go, mainly because I was seven months pregnant (怀孕的) then. I promised that I’d be very careful. One of them wanted to come with me but I asked her to stay with another friend who needed help with her baby.I walked out of the hotel and started making my way to the car. At the crossing, a black car stopped and a man came out with an umbrella. Before I knew what was happening, he walked right through me and told me he’d escort (护送) me. Although I refused, he insisted (坚持) that he would.During our walk, he kept telling me to walk slower, as the ground was wet. When we got to the car-park, I thanked him and he went away. I did not get his name and can hardly recognize (认出) him now. Did he stop for me? I’ll never know.So how did I pay it forward? I was at home when I noticed two Indian workers walking in the heavy rain. They were probably on their way to the working place near my home____________They were surprised by my action. They were very grateful to me, probably wondered why a stranger was offering suchkindness. I was so relaxed and happy that day.1．What did the writer do after she had just had lunch?A．She took a walk in the rain B．She argued with her friendC．She returned to the hotel D．She decided to get her car2．How did the writer feel when a stranger insisted escorting her?A．angry B．surprised C．happy D．sorry3．What is the probably the missing line in Paragraph 5?A．I laughed at them standing in the rainB．We greeted each other with a smileC．I went out and passed them my umbrellaD．I saw a car coming towards them without stopping.4．What’s the best title for the passage?A．Unforgettable rainy days B．An unknown manC．Good turns worth another D．A beautiful umbrellaB14、For this little boy,it was the coldest winter.In that winter,his father lost a leg in an accident. He couldn’t go out to work again.From then on,his father became another person. He often lost his temper and beat him.One night, the boy was walking slowly lonely on the street. He passed a lovely small shop, He looked at some nice packages(包) of coffee quietly for a long time. An idea came into his mind .He knew his father loved coffee and he knew stealing was no good.But all he could think of was his father’s smile.He soon put a package of coffee into his jacket and ran back home.He ga ve the coffee to his father,who gave a smile that the boy had missed for so long.But,unfortunately,before his father could taste the coffee,the shopkeeper broke in and caught the boy. His father beat him again.Years later, he became a successful businessman. One day, his mother called and said his father wanted to see him. Busy working, he refused. Weeks later, he heard the sad news that his father had______When he went through the relics（衣物）,he found an old box.Inside the box was the coffee that he had stolen from the shop.On the cover was his father’s handwriting:“Th e gift from my son.”There was also a letter:“Dear son,I’m a failure as a father. But I also have a dream—to own a coffee shop, where I can make cups of coffee for you. I’m sorry I didn’t make it.”Sadness suddenly occupied him. He regretted not meeting his father for the last time, and decided to complete his father’s dream. After quitting his own job, he started a coffee business.The coffee business is now a huge success. And the little boy is Howard Schultz—the owner of the multinational corporation Starbucks.1．Why did the boy’s father become a different person？A．Because the boy didn’t study very hard.B．Because he lost a leg and couldn’t support the family.C．Because he lost an arm in an accident.D．Because it was the coldest winter.2．From the second passage, we could infer that________________.A．the boy wanted to taste the delicious coffeeB．the boy liked stealing thingsC．the boy wanted to make his father happyD．the boy’s mother liked drinking coffee3．What did the boy regret most?A．Not meeting his father for the last time.B．Stealing coffee in a coffee shop.C．not completing his father’s dream.D．Getting troubling for his family.4．What does the underlined part “pass away” mean?A．出国B．通过C．外出D．去世5．The writer wants to tell us _____________.A．Howard Schultz started a coffee business to complete his father’s dreamB．the father was kind to the boy and never beat himC．the little boy is Howard Schultz—the owner of KFCD．the boy’s mother loved his coffee so much that she kept it in an old boxC15、From:___________Sent: Wed., Oct. 19To:____________Subject: Hello!Hi, Liam!So you're my new pen friend. Let me tell you a bit about myself. I'm 14 years old and I live in Calgary, Canada. I have two older brothers, Brian and Sam. I'm the only girl.I love sports and I'm always looking for exciting new hobbies to try. I like playing baseball in winter. It's fun beating the boys! But summer is my favourite time of the year. I love skateboarding androck climbing in summer.Skateboarding's great because it's so fun and easy to learn! I often skateboard after school. There are many places in the park where I can do stunts. I'm good at stunts like jumping and turning the skateboard!Rock climbing is also really fun. I usually climb with my dad on weekends. We can't do it on real mountains very often because we live in the city. We do indoor rock climbing instead but it's not as challenging.So that's me! How about you? Please write back soon!Bye for now!Anne1．Who wrote this email?A．Liam. B．Brian. C．Sam. D．Anne.2．What is the writer like?A．Active. B．Shy. C．Lazy. D．Kind.3．The writer sent this emailin order toA．describe some exciting sportsB．look for a suitable pen friendC．make a self-introductionD．show others his/her hobbiesD1．Ann is going to have a __________.A．birthday party B．ten party C．Christmas party2．The party will begin at __________.A．6:20 am B．6:20 pm C．5:40 pm3．What day is July 14th?A．Monday. B．Tuesday. C．Wednesday.E17、It is reported that some developed countries have shipped broken parts of computers to China. Last month Hong Kong officers found 131,000 kilograms of broken computers, TVs and phones sent from Japan.Things like these are called electronic waste, or e-waste. Dealing with it is not an easy job. Every time an old computer breaks down, it needs to be dealt with safely. But at present, broken computer parts are usually buried. It may be hundreds of years before they are really going in the earth（泥土）.Many places in China are polluted by e-waste. Guiyu in Guangdong Province is one of them. This town is nam ed as “thee-waste capital of the world”. Many of the poisons(有毒物) in e-waste find their way into the environment. Plastic is burned outdoors and chemical water is poured into rivers. Greenpeace, an environmental group, has found the air, the earth and the rivers in Guiyu badly polluted.The Chinese government wants the country to develop, but we should find a way that isn’t harmful to the environment and people’s life. This year, China makes a new environment protection law, the strictest one we have ever had. Computer companies like Lenovo and Dell will be asked to take back their old computers. This is because they know best how to deal with them safely. Hopefully, the problem with e-waste will be solved in near future.1．The e-waste found in Hong Kong last month was from .A．France B．America C．Germany D．Japan2．The underline word“buried” probably means “” in the passage.A．回收B．焚烧C．掩埋D．毁灭3．The passage may be from .A．a newspaper B．a story book C．a cartoon book D．a novel4．The town of Guiyu in Guangdong Province .A．is the capital of the world B．has serious e-waste pollutionC．deals with e-waste safely D．is polluted by the waste water5．The passage is mainly about .A．the way in dealing with e-waste B．the protection of environmentC．the e-waste problem in China D．the need to pass a law again e-wasteF18、I would almost rather see you dead, Robert S. Cassatt, a leading banker of Philadelphia, shouted when his twenty-year-old eldest daughter announced that she wanted to become an artist. In the 19th century, playing at drawing or painting on dishes was all right for a young lady, but serious work in art was not. And when the young lady’s family ranked (位列) among the best of Philadelphia’s s ocial families, such an idea could not even be considered.That was how Mary Cassatt, born in 1844, began her struggle as an artist. She did not fear before her father ’ s anger. Instead, she was against him with courage and at last made him change his mind. Mary Cassatt gave up her social position and all thought of a husband and a family, which was unthinkable for a young lady in those times. In the end, after long years of hard work and perseverance( 坚持), she became America’s most important woman artist and the internationally recognized leading woman painter of the time.1．What in fact was Mr. Cassatt’s main reason in opposing his daughter’s wish?A．Drawing and painting was simply unthinkable among ladies in those days.B．He did not believe his daughter wanted to work seriously in art.C．Ladies of good families simply did not become artists in those times.D．He believed an artist’s life would be too hard for his daughter.2．What made Mary Cassatt’s “fight” to become a leading artist especially hard?A．Her father was against her. B．She was a woman.C．She had no social position. D．She did not come from an artist’s family.3．What do we know about Mary Cassatt’s marriage?A．She never married because she did not want to be just a wife and mother.B．Her marriage failed because she never gave a thought to her husband and family.C．After marriage she decided to give up her husband rather than her career.D．She didn’t marry because for a lady of her social position to marry below her was unthinkable.Ⅴ.书面表达19、文段表达。
2020-2021学年高二英语4月月考试题 (II)[1]
![2020-2021学年高二英语4月月考试题 (II)[1]](https://img.taocdn.com/s3/m/f7f3986565ce050877321359.png)
2020-2021学年高二英语4月月考试题 (II)第一部分听力（共两节，满分30分）第一节（共5小题；每小题1.5分，满分7.5分）听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. Who is the man probably?A. A taxi driver.B. A restaurant waiter.C. A traffic policeman.2. What do we know about the speakers?A. They want to have a cup of coffee.B. They agree to have some coffee the next day.C. The woman can’t accept the man’s suggestion.3. What did the man do last night?A. Saw a film.B. Met a friend.C. Gave a talk.4. Where does this conversation most probably take place?A. In the library.B. In the bookstore.C. In the post office.5. What is Kate doing now?A. Playing basketball.B. Playing at home.C. Playing the piano.第二节（共15小题；每小题1.5分，满分22.5分）听下面5段对话或独白。
每段对话或独白后有几个小题，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。
山西省长治市第二中学2020┄2021学年高二上学期第二次月考英语试卷+Word版含答案
【本试卷满分150分，考试时间120分钟】第Ⅰ卷（选择题共100分）第一部分听力（共两节，满分20分）第一节（共5小题，每小题1分，满分5分）听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. What is the woman？A. A student.B. A secretary.C. A teacher.2. What does the woman say about Tom？A. He works hard.B. He is clever.C. He is popular.3. What are the speakers talking about？A. Where to meet Mr Jackson.B. Whether to call Mr Jackson.C. When to meet Mr Jackson.4. How will the man go to the airport tomorrow？A. By bus.B. By taxi.C. By car.5. Where will the woman go tonight？A. T o a party.B. To a theatre.C. T o the man’s home.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。
每段对话读或独白两遍。
听第6段材料，回答第6、7题。
6. What is the boy’s favourite song？A. My Love.B. Yesterday Once More.C. My Heart Will Go on.7. What does the boy think of the song My Heart Will Go On？A. Noisy.B. Boring.C. Great.第7段材料，回答第8、9题。
河南省南阳市第一中学2020_2021学年高一英语上学期11月第二次月考试题含解析
某某省某某市第一中学2020-2021学年高一英语上学期11月第二次月考试题（含解析）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，并在答题卡上将该项涂黑。
ADay 1Whether you arrive in Lanzhou by air or train, our guide will pick you up on time and transfer you to your already-booked hotel. After leaving your luggage in the hotel and having a short rest, your tour begins with the Statue of Mother Yellow River, a landmark of the city. After that, our guide will take you to see Zhongshan Bridge before returning to the hotel.Meals: No meals, advice freely availableDay 2After breakfast, you will be transported to the railway station to take the bullet train departing at 8:36 to Zhangye, the second destination. The train journey is about 3.5 hours. On arriving in Zhangye, a hearty lunch will be arranged at a nice restaurant for you to taste local dishes. After that, we will head for Linze County to visit Zhangye Danxia National Geological Park, where you can witness peaks with yellow, reddish and rainbow layers under the rosy rays of sunset.Meals: Western buffet breakfast, LunchDay 3Jiayuguan Great Wall, standing in the middle of the desert, is a highlight of the city. Our guide will take you to climb its Gate Tower which suffered from a lot of fierce wars in the past. In the afternoon, we will set out on a trip to the nextstop-Dunhuang by our private vehicle.Meals: Breakfast, LunchDay 4This is the last day of your tour. We'll take you to sight-see essential spots of Dunhuang, including Mogao Caves, Crescent Lake and Echoing-Sand Mountain. Before departure, our guide will show you the Dunhuang Museum, to have a general view of the city's history.Meals: Western buffet breakfast, Lunch1. What is the first destination for your package travel?A. Lanzhou airport.B. Zhongshan Bridge.C. The Statue of Mother Yellow River.D. Lanzhou railway station.2. What will you do upon arriving in Zhangye?A. T o take a bus to Linze County.B. To visit a geological park at once.C. T o rest in an already-booked hotel.D. T o have a taste of local dishes.3. How many meals will be offered to the tourists?A. Eight meals.B. Six meals.C. Seven meals.D. Five meals.【答案】1. C 2. D 3. B【解析】本文是一篇应用文。
山东省2020-2021学年高二上学期10月英语试卷精选汇编：语法填空专题
语法填空专题山东师范大学附属中学2020-2021学年高二10月月考英语试题阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。
Tu Youyou, a committed and patient scientist, was born in Ningbo, China, on December 1930, and graduated from Peking University Medical School in 1955. In1967, Chinese government formed a team of scientists 56. the objective of discovering a new treatment for malaria and Tu Y ouyou was among the first researcher 57. (choose). In 1969, she became the head of theproject in Beijing and decided 58. (review) ancient Chinese medical texts to find traditional botanical treatments for the diseases. After countless attempts and persistent efforts, Tu Y ouyou and her team 59. (final) succeeded in 1971. Tu Y ouyou 60. (award) Nobel Prize forPhysiology or Medicine in October, 2015 because of the discovery of artemisinin.Future homes will use integrated sensors 61. (tell) youeverything. Y ou will no longer have to think about turning switches on and 62.. Y our home will also learn your 63. (day) routine and preference. All controls will respond 64. voice commands, so if you want to change your routine, you just say 65. you want and the home system will obey.语篇填空56. with 57. chosen 58. to review 59. finally 60. was awarded61. to tell 62. off 63. daily 64. to 65. what山东省枣庄市第八中学东校区2020-2021学年高二上学期第二次质量检测英语试题第二节(共10小题；每小题1.5分，满分15分)阅读下面材料，在空白处填入1个适当的单词或括号内单词的正确形式。
2020-2021 学年高三上学期12月月考英语试卷(全国卷)
2020 — 2021学年高三上学期12月月考英语试卷（全国卷）（满分150分，考试时间120分钟）注意事项：1. 答卷前，考生务必将自己的姓名、考生号等填写在答题卡上。
2. 回答选择题时，选出每小题答案后，用铅笔把答题卡上对应题目的答案标号涂黑。
如需改动，用橡皮擦干净后，再选涂其他答案标号。
回答非选择题时，将答案写在答题卡上，写在本试卷上无效。
3. 考试结束后，将本试卷和答题卡一并交回。
第一部分听力（共两节，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（共5小题；每题1.5分，满分7.5分）听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. What are the speakers mainly talking about?A. Customs in China.B. Driving in Rome.C. Traffic rules in England.2. How does the man feel about his job?A. Boring.B. Relaxing.C. Enjoyable.3. Which club will the man probably join?A. The Tennis Club.B. The Drama Club.C. The Swimming Club.4. What should the boy do in the woman’s opinion?A. Revise for the exams right away.B. Rewrite his English paper.C. Wait for the exam result.5. What is the man’s hobby?A. Playing football.B. Listening to music.C. Reading.第二节（共15小题；每题1.5分，满分22.5分）听下面5段对话或独白。
2020-2021学年湖南省长郡中学高二上学期10月第二次月考英语试卷及解析
Date,Location and Cost
Week 1:May 28-June 1 Tempe Campus ＄350
Date,Location and Cost
July 15-19 Chandler Innovation Center＄250
Registration opens February 4,2021
Registration deadline is July 8,2021
High School Game Camp
Week 2:June 10-14 West Campus ＄375
Week 3:June 17-21 Polytechnic Campus ＄400
Registration opens April 1,2021
Registration deadli Nhomakorabeae is May 1,2021
High School App Camp
Join us and practice your skills in science technology,engineering,arts,and math (STEAM)concepts while exploring,designing,and solving puzzles to"escape"the room!The camp will end with the design and construction of your own"room"for your family and friends to escape on the last day of the camp.
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绝密★启用前2020-2021学年第一学期高二年级第二次质量检测英语试题考试时间：120分钟命题范围：必修五满分：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，将条形码准确粘贴在条形码区域内。
2．请使用2B铅笔将答案正确填写在答题卡上。
第一部分听力（共两节，满分30分）做题时，现将答案标在试卷上，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（共5小题；每小题1.5分，满分7.5分）听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
没段对话仅读一遍。
1．What does the woman advise the man to do?A .Buy a new camera. B. Learn to shoot pictures. C. Make the camera clean.2．What does Mary probably feel about her university life?A. Interesting.B. Terrible.C. Boring..3．What does the woman imply?A. The rainforest cannot be fun.B. She totally agrees with the man.C. Students will learn something from the trip.4．How does the man feel after retirement?A. Excited.B. Unhappy.C. Relaxed.5．What does the woman probably dislike?A. The loud sound.B. The movie.C. The man.第二节（共15小题；每小题1.5分，满分22.5分）听下面5段对话或独白。
每段对话或独白后有几个小题，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。
听没段对话或独白前，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。
每段对话或独白读两遍。
听第6段材料，回答第6、7题。
6．What are the speakers doing?A. Traveling on a boat.B. Looking at some photos.C. Studying the history of a country.7．What did the woman see in Kamakura?A. The Giant Buddha. B, Some famous temples. C The highest building.听第7段材料，回答第8、9题。
8．In which course did the speaker’s son get a B?A．PE. B．English. C．Math.9．What will the man do?A．Talk to his son. B. Consult with a teacher.C. Leave the matter to the woman.听第8段材料，回答第10至12题。
10．When did the man go to Wick?A. A month ago.B. A week ago.C. A year ago.11．Why didn’t the man go to Wick again?A. His wife hated it.B. He didn't like the food there.C. The girl hated it. 12．How will the woman probably go to the restaurant?A. On foot.B. By car.C. By taxi.听第9段材料，回答第13至16题。
13．What of the carpet does the man think is attractive?A. Its colors.B. Its design.C. Its size.14．What is TRUE about the kitchen?A. It is very dirty.B. It is quite small.C. It has a dishwasher. 15．How many rooms are for renting?A. Two.B. Three.C. Four.16．How much is the rent?A. $500 a month. B .$600 a month. C .$700 a month.听第10段材料，回答第17至20题。
17．What's the speaker's favorite book?A. My Life Story.B. The old Man and the Sea.C. A Tale of Two Cities. 18．When did Helen Keller meet Miss Sullivan?A. When she was 10.B. When she was 5.C. When she was 7. 19．How did Miss Sullivan teach Helen Keller?A. By teaching her to read aloud.B. By writing some words on her hands.C. By reading books to her.20．What does the passage show us?A. Always be prepared for the best.B It's never too old to learn.C. Nothing is difficult if we put our heart into it.第二部分阅读理解（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从题中所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
AHere are the top four activities for families in Edmonton, the capital of Alberta, Canada.West Edmonton MallHere there is truly something for everyone with 800 stores, 10 world-class attractions, two hotels and over 100 dining venues. There is lots of parking, but it can be hard to find a spot later in the day, so plan to arrive early. You can also take a bus if you want to avoid driving in this busy area of the city.Tip: Get a 10% discount when you buy your tickets online.Fort Edmonton ParkThe park is the perfect kid-friendly attraction. This trip down memory lane will introduce your family to four periods in Edmonton’s history. You’ll want to spend at least three hours, so your family will have time to take part in as many activities as possible.Tip: If you want to avoid the trouble of carrying a lunch with you, pre-order a picnic lunch basket fromthe Jasper House Bakery.The High Level StreetcarThe beautifully restored streetcars and informative conductors will take your family on an unforgettable trip down memory lane. You’ll also enjoy a wonderful view of the river from the world’s highest streetcar bridge.Tip: If you plan your trip on Saturday, you’ll also be able to pay a visit to the Old Strathcona Farmer’s Market.Telus World of ScienceIt is a hands-on educational experience the whole family will enjoy. Your admission includes the exhibit galleries, science demonstrations and full-dome shows. You can enjoy educational high-quality 3D movies but the cost is not included in admission.Tip: On a clear night, you can get a close-up look at the stars with the help of the observatory telescopes. 21．You would like to go to West Edmonton Mall by bus probably because __________.A．you can’t find a parking lot.B．there are too many supermarketsC．the traffic of the city is very busy D．it is easy for you to park your car22．You are interested in Edmonton’s history, so you can pay a visit to __________.A．West Edmonton Mall B．Fort Edmonton ParkC．The High Level Streetcar D．Telus World of Science23．The passage is mostly probably taken from______________.A．a magazine B．an official report C．a textbook D．a travel guideBPeter Damon produces about 30 paintings a year and sells them for between $250 and $1,500. That’s not enough to make ends meet, but it has made him whole again. He lost both arms in an accident.“Having this skill that even normal people find difficult was something that really helped me and mademe feel like I fit in more in the world,” Damon said. He was a worker in a car factory. One day when he was working, there was a gas explosion (爆炸), killing one worker and injuring him.“I lost my right arm above the elbow, about three inches above the elb ow, and my left about six inches below,” he explained.“How am I going to make a living and take care of my family? I had always worked with my hands,” he said.Then with a simple little drawing, a new future opened up for him.“I thought it was wonderful in a way,” Damon said. “Something was telling me to focus on this and everything will be alright.” Damon doesn’t have a perfect prosthetic arm (假肢)—juts a hook (钩子), which he finds works best.He and his wife Jen run True Grit Art Gallery in Middleboro, Massachusetts, where he shows the works of local artists. With his disability check from the government, he can afford to be an artist. He is a man doing what he wants with his life, and doesn’t look at his situation as a hard time.“I don’t see it that way,” Damon said. “Suffering an injury like this has a way of making you focus on what’s important in life.”He believes his best work is still ahead of him. But with his pictures of simple American scenes, Damon has already produced his best work.24．How did Damon lose his arms?A．A gas explosion injured his arms.B．He was attacked when he was driving a car.C．His arms were tapped by a worker by accident.D．He was knocked down by a car when he was working.25．What do we know about Peter Damon when he started taking up painting from the text?A．His hope for life was brought back.B．He felt a lot of pressure at the beginning.C．He didn’t earn enough to support his family.D．His painting were so expensive that few people wanted to buy them.26．What is Damon’s att itude towards his suffering?A．Negative. B．Optimistic. C．Pitiful. D．Uncertain.27．What is the main idea of the passage?A．Winners do what losers don’t want to do.B．It is never too late to mend.C．Never put off until tonorow what you can do today.D．God closes a door and another will open for you.CPeople do not like being separated from their mobile phones, even while enjoying a restful holiday at the beach. However, the phone battery (电池) may become exhausted completely. If that happens, they have no c hoice but to connect the phone to the power supply. But it’s impossible to get the battery charged (充电) at the beach. What’s worse, the hot sun is shining right overhead, and the water in the bottle is sure to reach a very high temperature.Antoine Sayah, a university student from Lebanon, developed a special beach mat called the Beachill. It looks similar to the ordinary beach mat and will cause back pain as well. However, the device can recharge any mobile phone. It is designed to be water resistant (防水的) and has a 5-watt solar panel, which provides power continuously. The mat also has the refrigeration equipment that can help keep drinks cool, just like the refrigerator.Antoine Sayah began selling the Beachill on the Internet for $150. He says he has been surprised at thereaction worldwide. “I have got orders for the device from Brazil, Toronto, all over Europe, especially France,………○…………内…………○…………装…………○…………订…………○…………线…………○…America, from all continents.” The Beachill is also gaining popularity in other places, like swimming pools and boats.Some people like the mat because it is lightweight and easy-to-carry. Rita Mathieu bought one of the Beachills. “When I am on the beach, I used to look around for a charger and never managed to find any and the water never stays cool,” she says. “So this kind o f beach mat is wonderful and has everything in it, even a pocket where I can put a book. Thanks to it, I can surf the Internet and keep in touch with friends at any time at the beach.”28．The opening paragraph is mainly intended to _________. A ．show great pity for people at the beach B ．attract the readers’ interest in the subject C ．provide some key facts about mobile phones D ．prove the importance of water in hot weather 29．What can we learn about the Beachill? A ．It is quite unusual in appearance. B ．It will stop working in the water. C ．It has some function of the refrigerator.D ．It has a 3-watt solar panel.30．Rita Mathieu is mentioned to prove the Beachill’s _________. A ．popularityB ．convenienceC ．good qualityD ．low price31．The text is written to _________. A ．tell people a new way to get a cold drinkB ．ask people to stop using phones at the beachC ．encourage people to travel around the worldD ．introduce a beach mat that can charge a phoneDAbout 97% of the world’s water is salty and is found in our oceans and seas. But, as we can’t drinksea water, how can it be important?Every part of our seas and oceans contains an amazing number of animals and fish that live at different ocean depths. Most of the different species of animals and fish depend on simple plants for their food. These simple plants called algae (海藻) drift near the surface of the ocean and use sunlight to turn carbon dioxide and water into food and oxygen. In fact, algae produce over half of the oxygen people breathe. How important sea water is!Each plant or animal in our seas and oceans is an important link in a food chain. The algae are eaten in large amounts by microscopic animals, which are in tur consumed by larger animals. These food chains are delicately (微妙地) balanced.The bad news about the food chains in the oceans is that they are under threat because of man. People once thought that the oceans were so big that it didn’t matter if we dumped rubbish into them or caught huge quantities of fish and whales for food. But we now know this is not true and fish stocks in the oceans have started to drop.Thankfully, the world is taking steps to protect the future of our oceans by introducing international agreements to protect marine habitats. Most counties have introduced fishing restrictions (限制) to protect fish stocks in the oceans and new techniques are being pioneered to cope with pollution. Finally, the importance of protecting oceans is being made known to more people. This is just the beginning of a long process to protect the oceans for our future. We depend on the oceans for fish which are an important part of the human diet. How important sea water is!32．From the passage, we learn that _________.A．most fish and sea animals live at the surface of the seasB．it is very difficult to break the balance of a food chainC．over-fishing has caused the decrease in fish stockD．it won’t be long before the problems concerning oceans will be solved33．What does the underlined phrase “cope with” mean in Chinse?A．处理B．保护C．增加D．检验34．Which of the following is NOT a way being used to protect oceans?A．The use of international agreements.B．Forbidding fishing to protect fish socks.C．The use of new techniques.D．Raising people’s awareness of the need to protect oceans.35．What would be the best title of the passage?A．The Importance of Sea WaterB．Life in the OceansC．How to Protect Food ChainsD．How to Deal with Seawater Pollution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。