吉林省延边第二中学2019_2020学年高二英语上学期期中试题

高二英语试卷注意事项：答案必须写在答题卡上，答在试卷上无效。

本试卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分，本试卷满分120分。

考试时间120分钟。

第Ⅰ卷（选择题共80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1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 time is it now?A. 9:10.B. 9:50.C. 10:00.2. What does the woman think of the weather?A. It’s nice.B. It’s warm.C. It’s cold.3. What will the man do?A. Attend a meeting.B. Give alecture.C. Leave hisoffice.4. What is the woman’s opinion about the course?A. Too hard.B. Worth taking.C. Very easy.5. What does the woman want the man to do?A. SpeakB. Apologize toC. Turn off thelouder. her. radio.第二节（共15小题；每小题1分，满分15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。

听第6段材料，回答第6、7题。

6. How long did Michael stay in China?A. Five days.B. One week.C. Two weeks.7. Where did Michael go last year?A. Russia.B. Norway.C. India.听第7段材料，回答第8、9题。

2019-2020学年吉林市第二中学高三英语上学期期中考试试卷及参考答案第一部分阅读（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、D四个选项中选出最佳选项AYou have to praise the smoothness（顺畅）of ants on the move. No matter how many of them are going toward a place, there's never a hold-up. A new research paper shows how ants keep traffic flowing by changing their behavior to meet changing conditions.For their experiments, researchers from the University of Toulouse focused on Argentine ants, animals that often move from colony（群落）to colony depending on where the food is. Making use of Argentine ants' talent for fast travel, the researchers built bridges connecting their colonies. The bridges were different in width from a fifth to three-quarters of an inch. The colonies, too, were of different sizes, ranging from 400 to more than 25,000 ants.Then the researchers sat back andmonitoredthe traffic. To their surprise, even when those narrower bridges were full of ants, there were no "traffic accidents". "When the number of ants on the bridge increased, ants seemed to be able to understand the situation and adjusted（调整）their speed accordingly to avoid making the traffic flow stop. "the authors note. "Moreover, ants avoided entering a busy road and made sure that the bridge was never too packed to cross.”The lesson for humans? The traffic problem may lie in our inability to adjust our driving habits for the good of the whole. Driving is fun when there are few cars on the road. Then the traffic moves very slowly. And yet, some impatient driver still acts like he's alone on the road.The research suggests that projects, like the ever-widening of highways, may never free us from traffic jams. As long as we drive along with our own habits, no matter how many other people are on the road, we'll always end up in a traffic jam. Indeed, less space may actually be a good thing. It leaves less room for individual choice and forces us to take a page from the driving book of ants.1. What is Paragraph 2 mainly about?A. The results of the experiments.B. The purpose of the experimentsC. The preparation of the experiments.D. The requirements of the experiments2. What does the underlined word "monitor" in paragraph 3 probably mean?A. watch and check.B. seek and improveC. design and planD. discuss and practise3. What is the best title for the text?A. Is widening highways a solution?B. Why don't ants need traffic lights?C. Can we learn safe driving from ants?D. What can ants teach us about traffic jams?BIf our kids don’t fall, they don’t learn to get up. I still remember the day in high school that my mom forgot to pick me up from school. I’m the oldest of four children, and no doubt she’d had a long day with the other kids and it’d slipped her mind. After waiting at school for an hour, I walked the three miles home, and when I got to my house, I shut our front door with anger, stormed into the kitchen and screamed in my mom’s face that she’d forgotten me.Later that night, my dad told me I no longer had a ride to school the next day. I figured my mom would still take me, but when the morning came, she refused. It was midterm, and as a straight-A student ready to start college applications, being late wasn’t an option (选择). In my mind, missing these tests would have been the end of my academic career. I begged my mom. I told her she was ruining my future and everything I’d worked for. But sheheld her ground, and that day, I walked to school. And I missed my tests.My mom didn’t rescue me from failure. She let me suffer from it. She let me figure it out. She let me learn. Now, as a mom myself, I’ve realized that I want my kids to experience failure because failure is how we grow, learn and think outside of ourselves. It’s how we self-educate to learn what’s right and respectable, and what’s not. It’s how we become responsible and enthusiastic. Falling down makes us better because we learn how to get up.4. What is one of the reasons that the author got angry that day?A. She was tired.B. She failed in a test.C. She was late for school.D. She had to walk home by herself.5. How does the author feel about her childhood experience?A. Terrible.B. Meaningful.C. Embarrassing.D. Colorful.6. The underlined phrase “held her ground” in Paragraph 2 probably means “________”.A. gave in to meB. said yes to meC. stayed in the placeD. kept to her idea7. What is the best title for the text?A. My Way of GrowingB. The Value of FailureC. My Love for MotherD. Failure in My LifeCLast summer, I spent four months working in France, where the company I was working for put me up in a house that didn’t have Wi-Fi. I wasn’t looking forward to it.I soon discovered, however, that living in a house without Wi-Fi was easier than I expected.Contact between my friends and family was significantly reduced to the odd text message here and there. I couldn’t enjoy my usual web browsing on BBC iPlayer, social media sites, keeping up to date with the news, or even wanting to know the opening hours of shops in the new area I was in.I didn’t, however, spend a full four months without connecting to a Wi-Fi network. It was only a five minute walk to the reception where I could connect for free and spend as much time online as I wanted to at my own leisure. It made me think , though , how unnecessary it can be , how unnecessarily we rely on it—how we perhaps rely on it too much. As a person, I was more sociable. I spent more time with my housemates instead of hiding behind a computer screen. I did other things that I wouldn’t necessarily have done if I could have browsed the web at my leisure. I read more, I cooked meals for my friends, and I even tidied up more often. Dare I say it; I learned how to live without Wi-Fi. Dare I say it; I found it was easier than I had imagined.8. What was the writer’s first feeling when finding her house had no Wi-Fi?A. Unexpected.B. Angry.C. Shocked.D. Depressed.9. How did the writer keep in touch with her friends and family without Wi-Fi?A. By writing regularly.B. By text message.C. By video calls.D. By telegram.10. What was the writer’s life like without Wi-Fi?A. Dull.B. Lonely.C. Active.D. Relaxing.11. What can be a suitable title for the text?A. A life without Wi-FiB. Different views on the InternetC. The disadvantages of Wi-FiD. How to use the InternetDIn many countries of the world, people can confidently tell youthe meaning of their town or city, but mostpeople who live inManchester,OxfordorBirminghamwould not be able to explain what the name of their city means. The name of every British town and city, however, has a long history.Two thousand years ago, most people living inBritainwere Celts. Even the word “Britain" is Celtic (凯尔特语).Then the Romans arrived and built camps which became cities called “castra". This is why there are so many place names inEnglandwhich end in "-chester" or “-caster"Manchester, for example.The Romans never reachedWalesorScotland, and many placenames there are Celtic. For example,Welsh place names that begin with “Llan" come from the Celtic word for "church".After the Romans leftBritain, it was attacked by the Anglo-Saxons who were from the area of Europe that is nowGermanyandHolland. The names of their villages often ended in “-ham" or “-ton". Some got their names from the leader of the village.SoBirminghamfor example, means "Beormund's village”The Anglo-Saxons were farmers and the landscape was very important to them, so we have villages called Upton (village on a hill)——a good place to build a village and Moreton (“village by a lake”)where floods could make life hard. Place names that end in “-ford" (a place where you could cross a river) also describe the location of Anglo-Saxon villages.Finally, in 1066EnglandbecameNorman—theNormansgave us the place name "grange", which means farm.And how aboutLondon? Experts cannot agree. The Romans called the city Londinium, but they were not the first inhabitants (居民). People once believed that theUnited Kingdom’s capital city got its name from the castle of a King called Lud but this is very unlikely. Our best guess today is that the name comes from a Celtic word meaning a fast-flowing river. Like a number of British place names, its history is lost in time.12. The origin of British place names is unfamiliar to many local people because ofA. the death of local languagesB. the long lost history of the namesC. their lack of interest in itD. the frequent changes to the names13. According to the article,Stratfordis most likely a town .A. on a hillB. near a castleC. beside a riverD. with a church14. Which of the following shows the correct order of the arrival of inhabitants inBritain?A. The Celts—The Romans—TheNormans—The Anglo SaxonsB. The Celts—The Romans—The Anglo Saxons—TheNormansC. The Romans—The Celts—The Anglo Saxons—TheNormansD. The Romans―The Anglo Saxons—The Celts—TheNormans15. What doesLondonmean in Celtic?A. RiverB. LondiniumC. LudD. Castle第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。

第一部分阅读理解（共20小题；每小题2分，满分40分）第一节（共15小题；每小题2分，满分30分）请认真阅读下列短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。

ALast week, while visiting my dad with my daughter, we went to a restaurant for dinner. When we were seated, my dad asked the waitress if there were any soldiers eating at the restaurant. Then waitress said there was a soldier having dinner with his friend. My dad told the waitress to tell the soldier and his friend that their dinner was paid for! He also said that he did not want to be known as the benefactor(施主).Then waitress later commented on my dad’s thoughtful behavior saying that she had never seen anything like this before. At a local college, she had studied opera and so she used this to thank my dad by performing a piece from The Pearl Fisherman. Her voice brought me to tears because it sounded perfect!After a while, the soldier appeared at our table (I don’t know how he knew my dad paid the bill for him.) and said that he would be sent to the front the next morning and that he could not leave this country without saying “thanks” to my dad. My dad replied that it was he who wanted to say “thanks”. They shook hands as the soldier left.Before we left, the waitress came by again. She did a magic show as another way to show her “thanks” to my dad. Her show was really great. My dad left her a note with email address asking for her next performance time in addition to a $ 50 tip.Everyone witnessed something exemplary(可作榜样的) in the human spirit that night. I can only hope to see more of this in the future.1.My dad offered help to the soldier and his friend in the restaurant probably because________.A. he wanted to thank them for all they had doneB. he wanted to know more about themC. he wanted the waitress to thank himD. he wanted the soldiers to know his kindness2.The waitress performed The Pearl Fisherman in the restaurant because________________.A. she was asked to perform to the guestsB. she wanted to show off her wonderful skillsC. she wanted to show her respect and thanks to the au thor’s dadD. she wanted to attract more and more guests3. What did the soldier do in response to the author’s father’s kindness?A. He gave something to author’s dad.B. He gave a big tip to the waitress.C. He did a magic show for the author and her father.D. He said thanks to the author’s dad in person.4. The passage mainly tells us that we should ___ __________.A. find ways to thank othersB. learn to be grateful to othersC. try to learn from each otherD. respect soldiers and waitressesBWhen you have a question about something, where do you go? For many people the answer is simple as they can go online to a search engine like Google or Yahoo. But what about people in rural or underdeveloped areas who may have no way to get on the Internet?A business and international development professor in California, Rose Shuman, found an answer for them: Question Box. Question Box is a service that provides answers---free of charge---for people who cannot search the Internet directly. The users of Questions Box might be those who might not be able to read, or simply have no access to the Internet.Question Box began three years ago in India. People used a metal call box with a push-to-talk button to connect a live operator. Rose Schuma n explained,” You just need to push a big green button on the box which will connect you directly to our operators who are sitting in front of computers, and speak your language. You can ask them any sort of question you want, and they’ll look it up in Eng lish or in Hindi, orwhatever the main language is, and translate the answer back for you.”The service is currently offered in two villages. The latest version of the box uses mobile phone technology, and solar panels in case the electrical power fails. Rose Shuman says the aim was to make the box as easy as possible for users, “It is very efficient (效率高的). Rather than try to bring a lot of difficulties to them and expect them to spend a lot of time to learn how to use the Internet, the idea was to make a technology that even Grandma could use.”In April 2009, Question Box was introduced to Uganda. Forty community workers with mobile phones connected villagers to call center operators in Kampala. The community workers went around telling people about the service. They wore T-shirts that said “Ask me.” But Internet service in Uganda proved slow and undependable. So Question Box teamed up with a local technology company to store information on a local server. That way, the researchers in Kampala could quickly search the database for answers.5. The best title for the passage is ____________________________.A. Question Box --- taking the place of the InternetB. Needing an answer? --- asking Question BoxC. Question Box --- a great invention in the worldD. Rose Shuman --- a professor helping the poor6. In Rose Schuman’s opinion, the greatest advantage of Question Box is that_____________.A. it is the most advanced in the worldB. it is more convenient to carry.C. it saves much more energyD. it is much easier to use7. The underlined word “them” in the fourth paragraph refers to______________________.A. the usersB. the operatorsC. the researchersD. Question Box workers8. What can we know from the passage?A. Question Box costs the users much less than the Internet.B. Question Box operators can look for information in any language.C. Question Box is more efficient in solving problems in underdeveloped areas.D. Question Box can work without the help of the Internet in Uganda.CBelow is adapted from an English dictionary. Use the dictionary to answer the following questions. figure / fīgə / noun, verb● noun1. a number representing a particular amount, especially one given in official information: the trade / sales figures2. a symbol rather than a word representing one of the numbers between 0 and 9: a six-figure salary3. (informal) the area of mathematics that deals with adding, multiplying, etc. numbers4. a person of the type mentioned: Gandhi was both a political and a religious figure in Indian history.5. the shape of a person seen from a distance or not clearly6. a person or an animal as shown in art or a story: a wall with five carved figures in it7. the human shape, considered from the point of view of being attractively thin: doing exercise to improve one’s figure8. a pattern or series of movements performed on ice: figure-skating* be / become a figure of fun: be / become sb. that others laugh at* cut a…figure: sb with a particular appearance: He cut a striking figure in his dinner jacket.* put a figure on sth: to say the exact price or number of sth.* a fine figure of man / woman: a tall, strong-looking and well-shaped person* figure of speech（修辞）: a word or phrase used in a different way from its usual meanings in order to create a particular mental image or effect* figurehead: someone who is the head or chief in name only (with no real power or authority)● verb1. to think or decide that sth. will happen or is true: I figured that if I took the night train, I could be in Scotland by morning.2. to be part of a process, situation, etc. especially an important part: My opinion of the matter didn’t seem to figure at all.3. to calculate an amount or the cost of sth: We figured that attendance at 150,000.* figure in: to include (in a sum): Have you figured in the cost of hotel?* figure on: to plan on; to expect sth. to happen: I haven’t figured on his getting home so late.* figure out: to work out; understand by thinking: Have you figured out how much the trip will cost?* It / That figures!: That seems reasonable.9. According to the information above, which of the following sentence is not right?A. This year’s sales figures were quite excellent.B. I couldn’t figure out what the teacher was talking about.C. She was the leading figure in British politics in the 1980s.D. He was about to speak but she put a figure on his lips to stop him.10. — She was coming late again for the work.—______! That’s typical of her. You just can’t do anything to stop her doing that.A. It figures her outB. She is a figure of funC. It cuts a poor figureD. It figures11. The phrase “watch my figure” in the sentence “Don’t tempt me with chocolate; I am watching my figure.” means “______”.A. add the numbersB. have sportsC. try not to get fatD. watch games12. Which sentence is used as figure of speech?A. John is fond of animals and raises a rabbit as a pet.B. In some countries, bamboo can be used to build houses.C. We all regard Mr. Smith as an important figure in our company.D. I didn’t really mean my partner was a snake.DAlthough the United Kingdom, Ireland, Canada, Australia and New Zealand have English as an official language, the United States does not have an official language. This is why it’s possible to become a US citizen without speaking English. Canada also has French as an official language, though it is mostly spoken in the province of Quebec. Because manyBritish colonialism (殖民主义) has spread English all over the world, and it is still popular in South Africa, India, and Singapore, among other nations. In South Africa, English became an official language, along with Afrikaans and 9 African languages, in the 1996 constitution. H owever, only 3% of the country’s 30 million people are native English speakers. Twenty percent are descendants (后代) of Dutch farmers who speak Afrikaans, and the rest are native Africans.India became independent from Britain in 1947. However, today English and Hindi are the official languages. Indian English is characterized by treating mass nouns as count nouns, frequent use of the “isn’t it?” tag, use of more compounds, and a different use of prepositions. In Singapore, Chinese, Malay and Indian languages all influence the form of English spoken. Everyone is taught English in the school system, but there are a few differences from British English as well. Mass nouns are treated as count nouns, “use to” means usually, and no articles are used before occup ations.13. Why can people become a US citizen without speaking English?A. They can learn English there.B. Different languages are spoken in the US.C. The US doesn’t have an official language.D. They can speak their own language there.pared with Australian English, the English spoken by New Zealanders .A. is a kind of old EnglishB. is more like British EnglishC. is closer to American EnglishD. is different from British English15. W hat do we know about South Africa?A. English is its only official language.B. It has 11 different official languages.C. English is becoming less important there.D. 20 percent of its population are native English speakers.第二节（共5小题，每小题2分，满分10分）根据对话情景和内容，从对话后的选项中选出能入空白处的最佳选项。

高考模拟英语试卷第Ⅰ卷(选择题共85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 are the speakers going to do?A. Pay for the taxi.B. Drink water.C. Sing songs.( )2. What is the man looking for now?A. His own iPad.B. His wife's mobile phone.C. His mobile phone.( )3. When does the first flight arrive in Beijing?A. 5：38 a．m.B. 7：58 a．m.C. 8：00 a．m.( )4. What is the woman probably?A. A teacher.B. A job adviser.C. An officer.( )5. What is Mike doing now?A. He is meeting friends.B. He is coming here.C. Not clear.第二节(共15小题；每小题1分，满分15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. Why does Victor sound angry?A. Laura doesn't come on time.B. Laura doesn't understand him.C. Laura won't wait for him.( )7. What will Laura probably do?A. Try on some new dresses.B. Wait outside with Victor.C. Read the bulletin board.听第7段材料，回答第8至10题。

2019-2020学年吉林省延边第二中学高三英语期中考试试题及答案解析第一部分阅读（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、D四个选项中选出最佳选项AThe Costa Book Awards consistently pick winners that are both of the moment and subsequently endure. It's our pleasure to confirm this year’s Category Winners.First Novel Award WinnerBook: Eleanor Oliphant is Completely FineAuthor: Gail HoneymanEleanor is 31 years old; work finishes on a Friday and begins again on a Monday. Between, her only company will be two bottles of vodka and her own solitary, unique wit (机智). It is contentment, of a kind, but an unexpected shared experience suddenly opens the door to possibility. Challenging reader expectations with a living, breathing character, Gail Honeyman’s debut (初次登台、开张)is a funny and moving diamond.Biography Award WinnerBook: In the Days of RainAuthor: Rebecca StottThe Exclusive Brethren were aclosed community who believed the world is ruled by Satan. Into this is born Rebecca. Her father had been an influential Brethren Minister. As her father lay dying, he begged her to help him write the memoir. He wanted to tell the story of their family who for generations had all been members of a fundamentalist Christian sect.Poetry Award WinnerBook: Inside the WaveAuthor: Helen DunmoreTo be alive is to be inside the wave, always travelling until it breaks and is gone. These poems are concerned with the borderline between the living and the dead — the underworld and the human living world – and the acutely intense being of both.Children's Award WinnerBook:The ExplorerAuthor: Katherine Rundell, Hannah HornFour children survive their aircraft plunging into the Amazon jungle, but for Fred and his friends it’s only the beginning of a cruel battle for survival. Brimming with adventure and a real command of character and incident, Rundell has few peers in superb children's fiction.1.What kind of life does Eleanor lead?A.boring and lonely.B.funny and touching.C.exciting and complex.D.ordinary and happy.2.Why did Rebecca Stott writeIn the Days of Rain?A.To introduce beliefs of the Exclusive Brethren.B.To help her father fulfill his last wish.CTo share the life of fundamentalist Christians.D.To pass on her family traditions.3.For a young adventurous soul, which book seems more appealing?A.Eleanor Oliphant is Completely FineB.In the Days of RainC.Inside the WaveD.The ExplorerBIt was very cold and I had been watching a homeless man make himself comfortable in a “shelter” on the river bank. His “shelter” was a tarpaulin (油布)tied to rocks to keep the wind from blowing it away. He had been living there for over a month. I never saw him with warm clothing or food. I knew what I wanted to do.When I told my parents what I wanted to do they werealarmed. They said I could be putting myself at risk, taking a box to a homeless person at night! But I knew, in my deep heart, that I would be safe.I got a box. My parents watched as I added warm gloves, a heavy blanket ... into the box until it was full! Then, I put a Christmas card on top. It said, “Even though we hardly know each other, I want to wish you a Merry Christmas!” I put ten one-dollar bills inside it as well.My father insisted he went there with me as it was 10 pm on Christmas Eve. I said he could drive me but he had to stay in the car. He agreed.I took the box and walked towards his “house”. I called, “Sir, I have a Christmas box for you!”“Go away!” he shouted.“Sir,” I repeated.“Go away!” he shouted.“Why?” I asked him.He walked over and I expected to see an angry face. Instead I saw two of the most beautiful, gentle, blue eyes I have ever seen.“Merry Christmas!” I said.“Why are you doing this?” he asked.“Because you matter to me,” I said. With that I gave him the box.Tears came to his eyes and he thanked me. I got back to the car and watched him carry the box like it was filled with gold. I didn’t want to embarrass (使困窘) him by watching him any more so Dad and I left.4. The underlined word “alarmed” can best be replaced by _____.A. pleasedB. worriedC. disappointedD. surprised5. Why did the author ask his father to stay in the car?A. Because he wanted to prove he was brave.B. Because he believed the homeless man was bad.C. Because he wanted to protect his father from being hurt.D. Because he didn’t want the homeless man to feel bad.6. When the homeless man saw the author first, he was _____.A. quite angryB. very excitedC. quite puzzledD. very curious7. The author’s purpose in writing the text is to tell readers that _____.A. it is easier said than doneB. poverty is the mother of healthC. where there is a will, there is a wayD. a willing helper doesnot wait until he is askedCHappiness is not a warm phone, according to a new study exploring the link between young life satisfaction and screen time. The study was led by professor of psychology Jean M. Twenge at San Diego State University (SDSU).To research this link, Twenge, along with colleagues Gabrielle Martin at SDSU and W. Keith Campbell at the University of Georgia, dealt with data from the Monitoring the Future (MtF) study, a nationally representativesurvey of more than a million U. S. 8th-, 10th-, and 12th-graders. The survey asked students questions about how often they spent time on their Phones, tablets and computers, as well as questions about their face-to-face social interactions and their overall happiness.On average found that teens who spent more time in front of screen devices — playing computer games, using social media, texting and video chatting — were less happy than those who invested more time in non-screen activities like sports, reading newspapers and magazines, and face-to-face social interactions."The key to digital media use and happiness is limited use," Twenge said. "Aim to spend no more than two hours a day on digital media, and try to increase the amount of time you spend seeing friends face-to-face and exercising — two activities reliably linked to greater happiness."Looking at historical trends from the same age groups since the 1990s, it's easy to find that the increase of screen devices over time happened at the same time as a general drop-off in reported happiness inU. S.teens. Specifically, young peopled life satisfaction and happiness declined sharply after 2012. That's the year when the percentage of Americans who owned a smartphone rose above 50 percent. By far the largest change in teens' lives between 2012 and 2016 was the increase in the amount of time they spent on digital media, and the following decline in in-person social activities and sleep.8. Which method did Twenge's team use for the study?A. Calculating students' happiness.B. Asking students certain questions.C. Analyzing data from a survey.D. Doing experiments on screen time.9. How does the author develop the finding of the study in paragraph 3?A. By making a comparison.B. By giving an example.C. By making an argument.D. By introducing a concept.10. What is the purpose of the last paragraph?A To draw a conclusion from the study.B. To offer some advice to the readers.C. To prove social activities' importance.D. To support the researchers' finding.11. Which of the following can be the best title for the text?A. Quitting Phones Equals HappinessB. Screen Time Should Be BannedC. Teens' Lives Have Changed SharplyD. Screen-addicted Teens Are UnhappierDWhat will future schools look like in 100 years? Imagine future schools in which students are totally engaged in a class. They are concentrating on working together to solve real-world problems. They are self-driven and are coming up withamazing ideas on the spot. They are concerned with each other’s well-being as part of a team. Their concerns reach far beyond the classroom to others all over the globe.The school of the future will be an amazing melting pot of different peoples coming together to solve real-world problems.Will they even be called “schools” in the future?The teacher-student relationship is changing. Teachers are acting more as helpers rather than keepers of all knowledge. Students are driving their own education to the path that they feel best fits them. In the future, employers may not be as concerned with a diploma. They’ll look more at cases and examples of how students contribute to solving real-world problems. They’ll want to know how well they work in a team.What will problem-solving look like in the future?Information from the Internet is accessible everywhere and at unimaginable speeds. Kids are connected to news around the world in real time. Imagine someone could put out a request to the global community to help solve an issue in their own community! Classes can adopt an issue and work with other classes around the world in real time to create solutions.What will information look like in the future?It’s already everywhere. Users can get flooded by the constant flow of information. The need to understand what is true and what is not is important. The flipped classroom (翻转课堂) has already completely changed lecture-based lessons. It presents interesting content to students before they even come to class. They can access the Internet as many times as they want to review the lessons.12. What is the key message of the first paragraph?A. The things students will do in the future school.B. The situation where students will be in the future.C. The attention students will pay to in the classroom.D. The methods students will use to study in the classroom.13. What will be thought highly of when students solve real-world problems?A. Respect.B. Patience.C. Teamwork.D. Concern.14. What can we infer from the fourth paragraph?A. Teachers encourage students to develop leadership.B Students are really relaxed with their heavy study.C. The employers value students’ diplomas most.D. Students have the right to choose the most suitable lessons.15. What’s the purpose of the flipped classroom?A. To help students to improve the problem-solving ability.B. To provide the lessons for students to study before or after class.C. To help students to keep in contact with the outside world.D. To help students to understand the most difficult content.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。

2020-2021学年吉林省延边第二中学高三英语上学期期中试题及答案解析第一部分阅读（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、D四个选项中选出最佳选项AExperts say that if food were a country, it would rank second behind theUSas one of the biggest greenhouse gas polluters. The reason is the rising demand for meat. Animal farming is responsible for 14.5 percent of global methane emissions. While cowsare the worst contributors, pigs, sheep, donkeys and other animals play a part as well.Animal agriculture also causes land to become damaged, water to be polluted and forests to get destroyed. With the world population forecast to rise to 9.8 billion by 2050, things are only looking worse for our already decreasing natural resources. While going vegetarian would help, meat consumption is too deep-rooted in most Western diets to allow for such a sharp, permanent change. That is why experts are advocating substituting some of the beef, chicken, or pork with ordinary insects!Insects, which grow into adults within a matter of months, if not weeks, are ready for consumption much faster than domestic animals. They also require much less room, use less water and food, and produce far less greenhouse gas than animals.Of the 1.1 million insect species worldwide, scientists have identified 1,700 as eatable. Among them are ants, grasshoppers, grubs, and earthworms. Just like animals, each insect has a different taste. Tree worms taste just like pork, and grubs are similar to smoked meat.While eating insects might be a new concept for Western people, over 2 billion people worldwide consume insects as a regular part of their diet. Besides being delicious, insects are high in protein, have very few calories, and are free of the saturated fat found in animal meat. Insects can be prepared in many ways. Creative cooks can use them to cook protein-rich soup, make baked treats, and even fry a few with vegetables. So eat insects--- both your body and Mother Earth will thank you for it!1. Which of the following animals contribute the most to global methane emissions?A. Sheep.B. Donkeys.C. Cows.D. Pigs.2. How is the third paragraph developed?A. By making comparisons.B. By providing examples.C. By listing data.D. By asking questions.3. What can be inferred from the last paragraph?A.Few people eat insects regularly.B. Ordinary insects are high in fat.C. Insects contain various vitamins.D. Saturated fat is harmful to health.BThere are 195 countries in the world today but almost none of them have purple on their national flag. So what’s wrong with purple? It’s such a popular color1 today. Why would no country use it in their flag? The answer is really quite simple. Purple was just for too expensive.The color1 purple has been associated with royalty power and wealth for centuries. Queen Elizabeth I forbade anyone except close members of the royal family to wear it. Purple’s high status comes from the rarity and cost of the dye (染料)originally used to produce it. Fabric traders got the dye from a small sea snail (海螺)that was only found in the Tyre region of the Mediterranean. More than 10,000 snails were needed to create just one gram of purple; not to mention a lot of work went into producing the dye, which made purple dye so expensive.Since only wealthy rulers could afford to buy and wear the color1 , it became associated with the royal family. Sometimes, however, the dye was too expensive even for royalty. Third century Roman Emperor Aurelio famously wouldn’t allow his wife to buy a scarf made from purple silk because it cost three times its weight in gold. A single pound of dye cost three pounds of gold, which equals 56,000 dollars today. Therefore, even the richest countries couldn’t spend that much having purple on their flags.The dye became more accessible to lower-class about a century and a half ago. In 1856, 18-year-old English chemist William Henry Perkin accidentally created a man-made purple compound (化合物)while attemptingto produce an anti-malaria drug. He noticed that the compound could be used to dye fabrics, so he patented the dye, manufactured it and got rich. Purple dye was then mass-produced so everybody could afford it.Till now, a handful of new national flags have been designed and a few of them have chosen to use purple in their flag. So don’t be making any bets just yet.4. Why was color1 purple expensive in the past?A. Because only royal families were allowed to wear purple.B. Because it took a long time to get purple dye from gold.C. Because purple was worth as much as its weight in gold.D. Because purple dye used to be rare and hard to produce.5. Why did Roman Emperor Aurelio forbid his wife to buy a purple scarf?A. Because of poor quality.B. Because of long tradition.C. Because of bad taste.D. Because of high price.6. What is purple's situation now?A. Purple has been widely used on national flags.B. Purple dye is now affordable to ordinary people.C. Royal family stop using purple because it’s toocommon.D. Fewer snails are used to produce purple dye than before.7. Which of the following would be the best title for the passage?A. No Purple Flags?B. Purple vs GoldC. How to Produce Purple Dye?D. The Birth of Purple ColorCPeggy Whitson's job demands a daily two­hour workout in a gym where weight has no meaning and the view changes at 17,000 miles an hour.Whitson makes it look easy. At 57, she is the oldest woman to fly in space, breaking the record last November, 2016, when she began her third long­term stay at the International Space Station. After returning home in September, 2017, the NASA astronaut feltmatter­-of­-factabout the age milestone.“It wasn't a record I was seeking for,” Whitson said. “I was 42 and 48 for my first two space flights. I feel lucky that I was able to get to do another one in my 50s. I don't think people should let age discourage them, even on those jobs that require some amount of physical fitness. The oldest man is John Glenn (at 77), and we've had male astronauts in their 60s before, so it's just a matter of time before women start flying in space at this age”.On the earth, she stays fit by weightlifting, biking, playing basketball and water skiing. She shared what it's like to live in microgravity: “It's like you're in a swimming pool, but you don't have to worry about breathing. If I push off from one side, I'm going to float to the other side. Every direction feels exactly the same, which is really hard for your brain to grasp, but it's amazing how fast you adapt.It's a big shock for the body to come back to Earth—everything is so heavy. We spend a lot of time getting used to being back in gravity again. Back pain was really the most dramatic for me this time. For me, coming home is harder than going up into space.”8. How long did Peggy Whitson spend for her third stay in the International Space Station?A. About 300 days.B. About 708 days.C. About 107 days.D. About57 days.9. What does the underlined word probably mean in the passage?A. Amazing.B. Not surprising.C. Enthusiastic.D. Unbelievable.10. According to the passage, which of the following is true?A. Peggy Whitson likes swimming most.B. Peggy Whitson is the oldest person to fly in space.C. Peggy Whitson had been in space in 2002 and 2008.D. There had been female astronauts over 60s flying in space before.11. Which of the following will Peggy Whitson probably say?A. You can still be successful and do physical things when old.B. I spent quite a lot of time getting used to the life in space.C. The moment we reached the earth, we felt so relaxed.D. I feel lucky that I am physically well after the whole journey.DTexas has been one of the most restrictive gun-rights states in America.Thanks to a new law,however,the state will be one of the most relaxed,to the degree that police are discouraged from even asking about someone's guns. And if they do, they may not have much power to do anything if the person refuses to show a license.To be sure, the law is strict in its own way,offering a model for regulation. Under the law, open-carry citizens have to be licensed, a process that includes safety and shooting tests. They also have to show no prior psychological problems, and they have to be at least 21 years old.It is true that gun violence dropped sharply after restrictive laws were put in place in countries like Great Britain and Australia. However,the US public seems more interested than ever in weapons and the power they convey,despite gun control groups' concern over the increase of violence. Most states in America have steadily expanded gun rights since the end of a 10-year assault(攻击)weapons ban in 2004. Black Friday this year saw the biggest gun cache(贮存)ever purchased in one day.Considering those trends,there's a heated debate about whether the new Texas law is a model piece of legislation(立法)for a changing America,or a walking disaster just begging for trouble. As the law doesn't provide any punishment for those who refuse to show a license to a police officer, critics fear that officers may find it tough to handle potentially deadly situations. After all, armed citizens will no longer be considered suspicious,even though a lot of people might be alarmed by the sight. Most police in Texas have been told to not engage gun carriers unless they are doing something questionable or appear drunk.For sure,New Year's Day will be an exciting one for Texas gun owners. What's not yet known is how the rest of Texas will respond.12. All of the following are required in the new Texas law for open carry EXCEPTA. age limitB. mental conditionC. online registrationD. gun-operating skills13. What is mainly talked about in Paragraph 3?A. The reason for putting forward the new Texas law.B. The present situation of gun possession in America.C. The impact of the assault weapons ban in 2004.D. The inaction of the US government as to gun control.14. What do critics think the new Texas law will probably lead to?A. Heavier workload for policemen.B. Disrespect for officers.C. Lack of trust among citizens.D. Difficulty in crime prevention.15. What is the author's attitude towards the new Texas law?A. Negative.B. Cautious.C. Indifferent.D. Approving.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。

延边第二中学2019—2020学年度第一学期期中考试高二年级数学试卷（文科）一、 选择题（共12小题，每小题4分，共48分，每题只有一个选项正确） 1．命题“,sin 10x R x ∀∈+≥”的否定是（ ） A.00,sin 10x R x ∃∈+< B.,sin 10x R x ∀∈+< C.00,sin 10x R x ∃∈+≥ D.,sin 10x R x ∀∈+≤ 2．下列有关命题的说法正确的是（ ）A ．命题“若21x =，则1x =”的否命题为：“若21x =则1x ≠”B ．p q ∧为假命题，则,p q 均为假命题C ．命题“若,,a b c 成等比数列，则2b ac =”的逆命题为真命题D ．命题“若x y =，则sin sin x y =”的逆否命题为真命题3．在等差数列{a n }中，若a 1＋a 2＋a 3＝32，a 11＋a 12＋a 13＝118，则a 4＋a 10等于 ( ) A ．45B ．50C ．75D ．604．若x ，y 满足32x x y y x ≤⎧⎪+≥⎨⎪≤⎩，，， 则x + 2y 的最大值为( )A ．1B ．3 C.5 D.95．两个等差数列{}n a 和{}n b ，其前n 项和分别为n S ，n T ，且，则220715a a b b+=+（ ）A ．B ．C ．D ．6．对任意a ∈[－1,1]，函数f (x )＝x 2＋(a －4)x ＋4－2a 的值恒大于零，则x 的取值范围是( ) A ．1<x <3B ．x <1或x >3C ．1<x <2D ．x <1或x >27．已知x+2y+3z=6,则2x +4y +8z 的最小值为 ( )B.2C.128．若关于x 的不等式220x ax +->在区间[]1,5上有解，则实数a 的取值范围为 （ ） A ．),523(+∞-B ．]1,523[-C ．(1,+∞)D ．)1,(--∞9．已知首项为1的等比数列{a n }是摆动数列, S n 是{a n }的前n 项和, 且425S S =, 则数列{n a 1}的前5项和为（ ） A.31 B.1631C.1116D.11 10．一个等差数列前3项和为34，后3项和为146，所有项和为390，则这个数列的项数为（ ）A. 13B. 12C. 11D. 1011．数列{a n }是各项均为正数的等比数列，{b n }是等差数列，且a 6＝b 7，则有( )A ．a 3＋a 9＜b 4＋b 10B ．a 3＋a 9≥b 4＋b 10C ．a 3＋a 9≠b 4＋b 10D ．a 3＋a 9与b 4＋b 10的大小不确定12．设S n 为等差数列{a n }的前n 项和,(n+1)S n <nS n+1(n ∈N *)若87a a ＜-1则( ) A.S n 的最大值是S 8 B.S n 的最小值是S 8 C.S n 的最大值是S 7 D.S n 的最小值是S 7 二、 填空题(每小题4分，共16分)13．若等差数列{}n a 和等比数列{}n b 满足11–1a b ==，448a b ==，则22a b =___________．14．若2x ＋3y ＝1，求4x 2＋9y 2的最小值_______．15．在数列{x n }中，2x n ＝1x n －1＋1x n ＋1(n ≥2)，且x 2＝23，x 4＝25，则x 10等于_______．16.下列命题中(1) 在等差数列{}n a 中，()*,,,m n s t m n s t N +=+∈是m n s t a a a a +=+的充要条件； (2) 已知等比数列{}n a 为递增数列，且公比为q ，若10a <，则当且仅当01q <<； (3) 若数列{}2n n λ+为递增数列，则λ的取值范围是[)2,-+∞； (4) 已知数列{}n a 满足123231111252222n n a a a a n ++++=+，则数列{}n a 的通项公式为12n n a +=(5) 若n S 是等比数列{}n a 的前n 项的和，且B Aq S nn +=；（其中B A 、是非零常数，*N n ∈），则B A +为零． 其中正确命题是_________（只需写出序号）三、解答题（共6题，17、18题每题10分，19-21题每题12分，附加题20分） 17. （本小题满分10分）设命题p :实数x 满足22430x mx m -+<；命题q ：实数x 满足31x -< （1）若1m =，且p q ∧为真，求实数x 的取值范围；（2）若0m >,且p ⌝是q ⌝的充分不必要条件，求实数m 的取值范围.18．（本小题满分10分）已知函数()21,f x x a x a R =-+-∈. （1）当1a =时，求不等式()3f x ≤的解集；（2）若关于x 的不等式()21f x x ≤+的解集包含集合1,12⎡⎤⎢⎥⎣⎦，求实数a 的取值范围.19．（本小题满分12分） 在中，内角所对的边分别为，且.（1）求的值；（2）若，求的面积.20．（本小题满分12分）(1)已知x ＜45，求函数y ＝4x －1＋5－41x 的最大值； (2)已知x ，y ∈R ＊(正实数集)，且x1＋y 9＝1，求x ＋y 的最小值；(3)已知a ＞0，b ＞0，且a 2＋22b ＝1，求2＋1b a 的最大值．21．（本小题满分12分）已知等差数列{a n }的首项a 1＝1，公差d >0，且第二项、第五项、第十四项分别是一个等比数列的第二项、第三项、第四项． (1)求数列{a n }的通项公式； (2)设b n ＝1na n ＋(n ∈N *)，S n ＝b 1＋b 2＋…＋b n ，是否存在最大的整数t ，使得对任意的n 均有S n >t36总成立？若存在，求出t ；若不存在，请说明理由．22. 附加题（满分20分）设数列满足，；数列的前项和为，且.（1）求数列和的通项公式；（2）若，求数列的前项和.高二年级数学期中考试试卷（文科）参考答案ADBDD BCACA BD13.1 14. 12 15. 211 16.(2)(5)17. 【详解】解：（1）由22430x mx m -+<得; ()(3)0x m x m --< 当1m =时，13x <<，即P 为真时，(1,3)x ∈ .......2分由31x -<得131x -<-<，即24x <<，即q 为真时，(2,4)x ∈.......4分 因为p q ∧为真，则p 真q 真，所以(2,3)x ∈ .......5分（2）由22430x mx m -+<得；()(3)0x m x m --<，又0m >， 所以m ＜x ＜3m, .......6分由31x -<得131x -<-<，即24x <<；.......7分 设{}3A x x m x m =≤≥或，{}24B x x x =≤≥或 若p q ⌝⌝是的充分不必要条件则A 是B 的真子集，所以0234m m <≤⎧⎨≥⎩即4,23m ⎡⎤∈⎢⎥⎣⎦.......10分 18．（1）{1533x x ⎫-≤≤⎬⎭ ；（2）-152a ≤≤ （1）当1a =时，()121f x x x =-+-，所以不等式()3f x ≤即为1213x x -+-≤，等价于12(1)(12)3x x x ⎧≤⎪⎨⎪-+-≤⎩或112(1)(21)3x x x ⎧<<⎪⎨⎪-+-≤⎩或1(1)(21)3x x x ≥⎧⎨-+-≤⎩， 即1213x x ⎧≤⎪⎪⎨⎪≥-⎪⎩或1123x x ⎧<<⎪⎨⎪≤⎩或153x x ≥⎧⎪⎨≤⎪⎩，解得1132x -≤≤或112x <<或513x ≤≤，.......3分 ∴1533x -≤≤， ∴原不等式的解集为15{|}33x x -≤≤．.......5分 （2）∵不等式()21f x x ≤+的解集包含集合1,12⎡⎤⎢⎥⎣⎦，∴当1,12x ⎡⎤∈⎢⎥⎣⎦时，不等式()21f x x ≤+恒成立，即2121x a x x -+-≤+对1,12x ⎡⎤∈⎢⎥⎣⎦恒成立，∴2x a -≤对1,12x ⎡⎤∈⎢⎥⎣⎦恒成立，.......6分∴22x a x -≤≤+对1,12x ⎡⎤∈⎢⎥⎣⎦恒成立．.......7分又当1,12x ⎡⎤∈⎢⎥⎣⎦时521,22x x -≤-+≥， ∴512a -≤≤．∴实数a 的取值范围为51,2⎡⎤-⎢⎥⎣⎦．.......10分19【详解】 （1），所以，.......1分所以，即.......3分因为，所以，.......5分 所以，即. .......6分 （2）因为，所以. .......7分由余弦定理可得， 因为，所以，解得. .......10分故的面积为. .......12分20．解：(1)∵ x ＜45，∴ 4x －5＜0，故5－4x ＞0． y ＝4x －1＋541x －＝－(5－4x ＋x－451)＋4．∵ 5－4x ＋x －451≥x－x －451452)(＝2， ∴ y ≤－2＋4＝2， .......3分当且仅当5－4x ＝x －451，即x ＝1或x ＝23(舍)时，等号成立， 故当x ＝1时，y max ＝2．.......4分(2)∵ x ＞0，y ＞0，x1＋y 9＝1， ∴ x ＋y ＝(x 1＋y 9)(x ＋y )＝x y ＋yx 9＋10≥2yxx y 9 · ＋10＝6＋10＝16．.......7分当且仅当x y ＝y x 9，且x 1＋y 9＝1，即⎩⎨⎧12＝，4＝y x 时等号成立， ∴ 当x ＝4，y ＝12时，(x ＋y )min ＝16．.......8分(3)a2＋1b ＝a⎪⎪⎭⎫ ⎝⎛2＋2122b ＝2·a 2＋212b ≤22⎪⎪⎭⎫ ⎝⎛2＋21＋22b a ＝423，.......11分 当且仅当a ＝2＋212b ，即a ＝23，b ＝22时，a 2＋1b 有最大值423．.......12分21.解 (1)由题意得(a 1＋d )(a 1＋13d )＝(a 1＋4d )2，整理得2a 1d ＝d 2. ∵a 1＝1，解得(d ＝0舍)，d ＝2.∴a n ＝2n －1(n ∈N *)．.......4分(2)b n ＝1n (a n ＋3)＝12n (n ＋1)＝12⎝⎛⎭⎫1n －1n ＋1，∴S n ＝b 1＋b 2＋…＋b n ＝12⎣⎡⎦⎤⎝⎛⎭⎫1－12＋⎝⎛⎭⎫12－13＋…＋⎝⎛⎭⎫1n －1n ＋1＝12⎝⎛⎭⎫1－1n ＋1＝n2(n ＋1)........8分假设存在整数t 满足S n >t36总成立， 又S n ＋1－S n ＝n ＋12(n ＋2)－n2(n ＋1)＝12(n ＋2)(n ＋1)>0，∴数列{S n }是单调递增的．∴S1＝14为S n的最小值，故t36<14，即t<9.又∵t∈N*，∴适合条件的t的最大值为8. .......12分22【详解】（1）∵，∴，∴，.......4分又满足上式，∴．.......5分∵数列中，∴当时，，.......9分又当时，，满足上式．∴．.......10分（2）由（1）得，∴①，.......11分∴②，.......12分①②得.......16分∴．.......20分。

高中化学期中考试试卷吉林省延边第二中学2019-2020学年高二上学期期中考试（文）试题考试说明：本试卷分第Ⅰ卷（选择题80分）和第Ⅱ卷（非选择题20分）两部分，试卷共4页。

可能用到的相对原子质量：H：1 C：12 N：14 O:16 Na:23 Mg:24 Al:27 Si:28 S:32 K:39 Ca:40 Ti:48 Fe:56第Ⅰ卷选择题（80分）一、单项选择题（20小题，每小题4分，共80分）1.提供能量主要来源的一组营养素是()A. 糖类、油脂、蛋白质B. 水、无机盐、维生素C. 油脂、维生素、无机盐D. 水、蛋白质、糖类『答案』A『解析』【详解】在动物体内提供能量物质是指糖类、油脂、蛋白质，所以A项正确；水是主要是溶剂、无机盐平衡体内电荷、维生素调节有机体代谢平衡，它们均不是基本营养素，所以B、C、D错误；『答案』选A。

2.下列关于食物所含营养素的说法错误的是()A. 谷类只提供糖类B. 蔬菜是某些维生素、无机盐和膳食纤维的主要来源C. 油脂主要提供脂肪，特别是必需高级脂肪酸D. 鱼、虾、蛋、奶等能提供优质蛋白质『答案』A『解析』【详解】A、谷物中含糖仅20%-30%，除此还含有油脂等成分，A项错误；B、蔬菜富含调节人体生理机能的维生素、含有纤维素、大量叶绿素等，B项正确；C、油脂是油和脂肪的总称，在人体内水解生成高级脂肪酸和甘油，能氧化分解释放能量供生命活动需要，C项正确；D、氨基酸的种类和含量决定着蛋白质的优劣，而动物肉是蛋白质含量高的食物，所以鱼、高中化学期中考试试卷虾、蛋、奶等能提供优质蛋白质，D项正确；『答案』选A。

3.下列营养物质在人体内发生的变化及其对人的生命活动所起的作用叙述不正确的是()A.淀粉葡萄糖CO2和H2O(释放能量维持生命活动)B. 纤维素葡萄糖CO2和H2O(释放能量维持生命活动)C. 油脂甘油和高级脂肪酸CO2和H2O(释放能量维持生命活动)D. 蛋白质氨基酸人体所需的蛋白质(人体生长发育) 『答案』B 『解析』人体内无催化纤维素水解的酶，纤维素在人体内不能发生水解反应。

2019-2020学年吉林市第二中学高三英语上学期期中考试试题及答案第一部分阅读（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、D四个选项中选出最佳选项AOn the 100th anniversary of the Communist Party of China (CPC), red tourism has gained popularity among tourists who flood in to visit historic sites with a modern revolutionary heritage.JinggangshanThis is one of the most crucial and splendid chapters of history of establishing Red China as well as a unique and wonderful ecosystem, which is covered with rich forest, rugged peaks and several memorials to the Red Army. The best time to visit is between April and October, with the most temperature timing April and May when the large azaleas (杜鹃花) bloom.Open: 8:00-17:00 (Feb. 16-Nov. 15). 8:00-16:30 (Nov. 16-Feb. 15)XibaipoIt is an old revolutionary base where the leadership of the Communist Party of China was stationed, drawing up the blueprint for a new country. A memorial hall was built to honor the memory of this site. The lake and the hill here add brilliance and beauty to each other and form pleasant scenery.Open: Tuesdays to Sundays 9:30-17:00 (Xibaipo Memorial Hall)The Nanhu Revolutionary Memorial HallA new exhibition is held with updated display approaches, including phantom imaging (全息影像) and oil painting, which are used to improve visitors' experiences. The exhibition shows four stages of the CPC from its establishment to its achievements.Open: Tuesdays to Sundays 8:30-18:00 (closed on Mondays)Former Site of the Editorial Department ofNew YouthNew Youthstarted the New Culture Movement and spread the influence of the May Fourth Movement. The site was briefly based in Beijing but moved back to Shanghai in 1920 and also served as the office for the Communist Party of China Central Committee in the 1920s.Open: Thursdays to Tuesdays 9:00 - 11:30, 13:30 - 16:30 (closed on Wednesdays)1. Where would visitors learn more about the history of the Red Army?A. Jinggangshan.B. Xibaipo.C. The Nanhu Revolutionary Memorial Hall.D. Former Site of the Editorial Department ofNew Youth.2. What do we know about the Nanhu Revolutionary Memorial Hall?A. It focuses on Chinese achievements in art.B. It mainly advertises the coming anniversary.C. It applies modernized methods to the exhibition.D. It briefly introduces the rise and fall of Nanhu.3. When can tourists visit Former Site of the Editorial Department ofNew Youth?A. At 1:00 p.m. on Mondays.B. At 9:00 a.m. on Wednesdays.C. At 2:00 p.m. on Fridays.D. At 5:00 p.m on Sundays.BContrary to the long-held belief that plants in the natural world are always in competition, new research has found that in severe environments adult plants help smaller ones and grow well as a result.The research, led by Dr Rocio, studied adult and seedling (幼苗)plants in the ecological desert in the south-east of Spain. Dr Rocio said, “If you're a seedling in a poor land — the top of a mountain or a sand hill, for example-and you’re lucky enough to end up underneath a big plant, your chances of survival are certainly better than if you landed somewhere on your own. What we have found, which was surprising, is an established large plant, called a ‘nurse’, protects a seedling; it also produces more flowers than the same plants of similar large size growing on their own.”Other benefits of nurse-seedling partnerships include that more variety of plants growing together can have a positive effect on the environment. For example, vegetation areas with nurse plants with more flowers might be able to attract higher numbers of pollinators(传粉者)in an area, in turn supporting insect and soil life and even provide a greater range of different fruit types for birds and other animals.“The biggest winner for this system of nursing a plant is biodiversity(生物多样性),” Dr Rocio said. “The more biodiversean area, the greater number of species of plants, insect life, mammals and birds, and the better the chances of long-term healthy functioning of the environment and ecosystems. ” This system is win-win for adult and seedling plants in unfavorable environments.The research is of value to those who manage and protect plants in tough environments. Most home gardeners and farmers plan to ensure their soil and conditions are the best they can be for plant growth, but thefindings might be of value to those who garden in bare places.4. What is a common understanding of plants?A. They can help each other.B. They can survive ill conditions.C. They compete with each other.D. They grow well on their own.5. What will happen to seedling plants if they grow under adult plants?A. They will produce more flowers.B. They will die owing to competition.C. They will make adult plants larger.D. They will get support from adult plants.6. What is the effect of the nurse-seedling partnership?A. It leads to unfavorable environments.B. It produces long-term healthy chances.C. It attracts higher and larger pollinators.D It provides a more variety of plant types.7. Who will benefit from the new research?A. People studying organic farming.B. People protecting plants on sand hills.C. People wanting to change biodiversity.D. People keeping more animals on the farm.CThere are many useful things we can do each day to feel better. It may take some efforts and time to make a habit of drinking 8 glasses of water daily or thinking more positively, but it is well worth it. What things do you do every day to feel better?Probably the healthiest thing you can do to feel better each day is to exercise early in the morning. You don't have to run the whole morning or spend a few hours in the gym. Even doing some easy exercise like walking, sit-ups or jumping the rope will help you feel better in no time!Again, due to our busy schedules, we don't get enough sleep each night. If you have trouble falling asleep, avoid watching TV or surfing the Internet right before bed. Also, try to make healthy bedtime snack choices and don't drink tea or coffee too late in the day.If you drink 3 glasses of water, 4 glasses of coffee or tea and a glass of soda each day and think that you drink enough water, think again. Your body needs water (not coffee or soda!) to function properly. Aiming to drink 7-8 glasses of water each day can make you feel better.Being positive is the key to a longer life. Positive thoughts can help improve your overall heath. Life is full of stressful situations and it's hard to stay cheerful when everything goes wrong, but your positive attitude can help you solve any problem and fight any stress faster and easier. Your positive attitude is especially good for your heart health. Smile, stay positive and live a longer life!8. In the author's opinion which can benefit us most in order that we feel better?A. Sleeping enough.B. Drinking enough water.C. Thinking more positively.D. Taking morning exercise.9. Which of the following agrees with what is said in Paragraph 3?A. Drinking tea or coffee makes us sleep less.B. Drinking tea before bed makes it harder to fall asleep.C. Watching TV or surfing the Internet leads to less sleep.D. Our busy schedules cause more difficulty in falling asleep.10. Why is water necessary to our body?A. Because it can make us feel better.B. Because it can have our body work smoothly.C. Because in can do more good to our body thancoffee.D. Because it can hep avoid feeling thirsty.11. What do we need most when everything goes wrong?A. Thinking positively.B. Thinking out wise ways.C. Having a right attitude.D. Staying cheerful.DIn a world simultaneously on fire and underwater thanks to climate change, scientists have announced some good news: Several important tuna (金枪鱼) species have stepped back from the edge of extinction.The unexpectedly fast recovery speaks to the success of efforts over the past decade to end overfishing. But tuna are not the only species scientists are discussing at the 2021 World Conservation Congress in Marseille, France, which is organized by the International Union for Conservation of Nature (IUCN). Researchers caution that many other marine species remainimperiled. For instance, more than a third of the world's sharks remain threatened with extinction due to overfishing, habitat loss, and climate change.“I think the good news is that sustainable fisheries are possible,” says Beth Polidoro, a marine biologist at Arizona State University. “We can eat fish in a proper way and without driving the population to the point where itis on the road to collapse or extinction."At the same time, she warned that the changes in status should not be an reason to catch as many fish as we want.The IUCN, which ranks the world's most endangered species on its Red List of Threatened Species and is backed by 16,000 experts across the globe, also announced at the meeting that some animals are moving in the other direction, onto the Red List. One notable example is the Komodo dragon, an island-living lizard at particular risk from climate change.For the better part of two decades, Polidoro has been part of a specialist group tasked with assessing the statuses of more than 60 species of tuna and billfishes for the IUCN.Her team announced its first comprehensive findings in 2011, mentioning that a number of commercially fished tuna species were dangerously close to disappearing.According to the new data, the Atlantic bluefin tuna (Thunnus thynnus), once listed as endangered, now qualifies for a status of least concern. As does the yellowfin tuna (Thunnus albacares) and albacore tuna (Thunnus alalunga), which were both considered near-threatened the last time they were assessed.12. What does the underlined word “imperiled” in paragraph 2 mean?A. EndangeredB. ConservedC. ExtinctD. Safe13. What can we infer from Polidoro's words?A. Too many fish are being eaten by human beings.B. Eating fish does not necessarily lead to its extinction.C. Fish species are on the edge of dying out if no action is taken.D. The situation of underwater species are changing for the better.14. Which of following statement is true according to the passage?A. Some Tuna species are wiped out by overfishing.B. Tuna are ranked as the world's most endangered species.C. Climate change poses a threat to most species in water and on land.D. Three tuna species have been saved from extinction according to the data.15. What's the main idea of the passage?A. Some tuna species are reported endangered recently.B. IUCN has helped saved a great many marine species.C. Improvement has been made in saving marine species.D. Great efforts should be made to conserve species underwater.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。