吉林省实验中学2019届高三上学期第四次模拟考试英语试题含答案
吉林省实验中学2019届高三上学期期中考试英语试卷
2018—2019学年度上学期期中考试高三英语试卷本试卷分为第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分。
共150分，考试时间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，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. At what time does the office open?A. 7:45.B. 8:00.C. 8:15.2. What did the woman do last Sunday?A. She saw a play.B. She acted in a play.C. She went to the tea house.3. What is the relationship between the speakers?A. They’re friends.B. They’re strangers.C. They’re brother and sister.4. What are the speakers talking about?A. A fine boat.B. Their friend, Tom.C. The weather.5. What will the woman do this evening?A. Meet her Mum at the airport.B. Say goodbye to her Mum at the airport.C. Fly to another city with her Mom.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。
2019-2020学年吉林省实验中学高三英语上学期期末考试试卷及答案
2019-2020学年吉林省实验中学高三英语上学期期末考试试卷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ASan Francisco Bay Area is a great place if you're a sports fan as you'll find several events all year round and plenty of team pride. If you are anywhere close to the area during a game,these fantastic sports events are here for you.San Francisco Giants BaseballThe San Francisco Giants baseball team plays in SF at Oracle Park. This is a fun ballpark because it's always packed with great energy and offers views of the bay. It's one of the most popular San Francisco sports events. The Giants are part of the National League West Division. Since their arrival here in 1958,they have been World Series Champions three times.Golden State Warriors BasketballThe fan base of the Golden State Warriors distributes the whole San Francisco Bay Area as this region's only NBA team.Their regular season runs from late October through mid-April, and all home games are played at the Chase Center in San Francisco.In total, the Warriors has won six NBA championships.San Francisco 49ers FootballThe 49ers are San Francisco's NFL team, though they have recently moved to Levi's Stadium in Santa Clara, about an hour south of SF. The football team was named for the prospectors (探矿者) who arrived in the area in 1849 for the Gold Rush. They’ve won 5 Super Bowl championships, all between 1981 and 1994.San Jose Sharks HockeyThe San Jose Sharks represent the Bay Area in hockey (冰球).They were founded in 1991 as the only Bay Area team to compete in the NHL. Sharks fans love going to these San Francisco sports events at the SAP Center,which they call the Shark Tank,located about an hour southeast of SF.1.Where can a sports fan have a good view of the area?A.The Oracle Park.B.The Chase Center.C.Levi's Stadium.D.The SAP Center2.Which team has claimed the most titles according to the text?A.The Giants.B.The Golden State Warriors.C.The 49ers.D.The San Jose Sharks.3.Where is the passage probably taken from?A.A book review.B.A news report.C.A science fiction.D.A tourist magazine.BVietnammade preparations for theLunar New Year with a fish release on Thursday. The tradition involves releasing fish called carps into rivers and lakes in the country a week before the holiday known as Tet officially begins.The tradition comes from an ancient story of three “Kitchen Gods”. The three, two males and a female, take a ride on the brightly color1 ed carp at the end of the year. They go to Heaven to meet with the Jade Emperor, the God who rules there. The “Kitchen Gods” report news about the families they represent to seek the emperor's care and protection. Their efforts help to keep the kitchen fires burning, and families happy and healthy.As the Gods go to Heaven, families clean their houses in preparation to celebrate Tet. A clean house, Vietnamese believe, will bring luck in the new year. On Lunar New Year's Eve, the Gods will return to Earth and their duties in the kitchen of the house.Thursday's event inVietnamthis year was more controlled than ever before because of COVID-19. It is spreading in several northern areas of the country. However,Vietnamhas increased contact examination, mass testing, and quarantine measures to slow the spread. The aggressive action has limited infections and deaths in the country.“Vietnamese will still follow the tradition of releasing the fish, but COVID-19 has made people keep a safe distance,” said Tran Van Toi as he released a carp from a plastic bag atHanoi'sWestLake.This year, due to COVID-19, there were fewer people releasing fish there, but there was a major change in attitude towards plastic bags. After years of persuasion, now they don't throw the plastic bags into the water anymore but collect them to be recycled.4. What does paragraph 2 mainly talk about?A. Kitchen fires inVietnam.B. Traditional customs ofVietnam.C. A report on family activities inVietnam.D. A tale about Vietnamese Lunar New Year.5. What's the author's attitude towards theVietnam's actions to control COVID-19?A. Critical.B. Positive.C. Doubtful.D. Unconcerned.6. What was the change about fish release inVietnamthis year?A. It required few lake fish.B. It was more interesting and diverse.C. It was more environmentally friendly.D. It required more people and plastic bags.7. What can be the best title for the text?A. Vietnamese Respect Gods During the Festive TimeB. Vietnamese Mark Lunar New Year with Fish ReleaseC. Vietnamese Lunar New Year Celebrations Are FunnyD. Traditional Lunar New Year Promotes Animal ProtectionCA Chinese space mining company has designed a robot that can capture waste material left behind by spacecraft in outer space with a big net.The state-run Xinhua news agency recently reported that the robot launched on the government's Long March 6 rocket along with several satellites. The robot will also investigate deep space to observe small objects in the universe. The 30-kilogram robot, called NEO-01 , was developed by Origin Space. Pounded in 2019 and based in the southern Chinese tech hub(技术中心)Shenzhen, Origin Space has been devoted to exploring and using space resources, according to the company. The company says the robot will lead the way for future technologies capable of mining on asteroids(小行星).The world's first asteroid mining company, Planetary Resources, was established in 2009. Since then, more than 12 businesses around the world have entered the industry, including 3D Systems of the United States and Japan's Astroscale. Astroscale's technology uses magnets (磁铁)to gather up space waste. But a report on the Origin Space website says NEO-01 will use a net to capture waste and then bum it. Thousands of satellites have been launched worldwide. As they are used too long, many end up as waste and put other operating satellites at risk.Su Meng is the founder of Origin Space. He said the company plans to launch many space telescopes and more spacecraft to begin the first for-profit mining of asteroids by 2045. Su added that NEO-01 will serve as a prototype (雏形)of future space mining robots, which can use rich mineral resources on asteroids to support the development of the space industry.The Xinhua news agency reported that China was increasing efforts to land a spacecraft on a near-Earth asteroid to collectmaterials. China is also speeding up a plan to build a defense system against near-Earth asteroids. The country aims to follow Russia and the United States in becoming a major space power by 2030.8. Which of the following can correctly describe NEO-01?A. It weighs 60 kilograms.B. It was created by Planetary Resources.C. It will be burnt after finishing its mission.D. It is mainly used to catch space waste.9. What can be inferred from the text?A. China will be the most powerful in space by 2030.B. Origin Space will open more mines on asteroids.C. It is those useless satellites that make space waste.D. The robot will look into deep space for more waste.10. What does Su Meng think of NEO-01 ?A. It is promising and rewarding.B. It has benefited the space industry.C. It's a long way to produce it.D. It'll help make money for the company.11. What can be the best title for the text?A. NEO-01 , A Smart Robot Used in SpaceB. A Chinese Robot Can Catch Space WasteC. A New Robot Makes China a SpacePowerD. NEO-01 , the Pioneer of Future Space RobotsDOne billion people in the world are short of water. How can this problem be solved. Some suggestions have been to desalinate ocean water or to build enormous water pipelines from areas where water is abundant. (Suggestions such as these prove extremely expensive when they are actually used.) One possibility that scientists are considering is pulling icebergs from either the North Pole or the South Pole to parts of the world with a water shortage. Although many questions must be answered before such a project could be tried, moving icebergs seems a reasonable possibility in the future.Engineers, mathematicians, and glaciologists from a dozen countries have been considering the iceberg as a future source of water. Saudi Arabia is particularly interested in this project because it has a great water shortage. Scientists estimate that it would take 128 days to transport a large iceberg (about 1/2 square mile) to Saudi Arabia. Yet the iceberg would be completely melted by the 104th day. Therefore, insulation would be essential, but how to insulate the iceberg remains an unsolved problem.The problems in transporting an iceberg are numerous. The first problem is choosing the iceberg to pull. Theicebergs that form in the North Pole are quite difficult to handle because of their shape. Only a small portion extends above the water — most of the iceberg is below the surface, which would make it difficult to pull. South Pole icebergs, on the other hand, are flat and float like table tops. Thus they would be much easier to move.How can a 200-million-ton iceberg be moved. No ship is strong enough to pull such enormous weight through the water. Perhaps several ships could be used. Attaching ropes to an iceberg this size is also an enormous problem. Engineers think that large nails or long metal rods could be driven into the ice. What would happen if the iceberg splits into several pieces during the pulling. Even if an iceberg with very few cracks were chosen, how could it be pulled through stormy waters. Furthermore, once the iceberg reached its destination, very few ports would be deep enough to store it.All of these problems must be solved before icebergs can become a reasonable source of water. Yet scientists estimate that it will be possible to transport them in the near future. Each year, enough icebergs form to supply the whole world with fresh water for a full year. In addition, icebergs are free and nonpolluting. As a solution to the world’s water problems, icebergs may be a workable possibility.12. What is a problem in transporting iceberg?A. The size of the iceberg.B. The colour of the iceberg.C. The salt in the iceberg.D. The movement of air and water.13. What is the author’ attitude towards transporting iceberg?A. Pessimistic.B. Objective.C. Optimistic.D. Unconcerned.14. What does the last paragraph mainly tell us?A. It is hard to use iceberg.B. Iceberg are a good choice.C. There are problems with iceberg.D. Man finds no other ways to solve water shortage.15. What can be a suitable title for the text?A. Shortage of water.B. Icebergs for water.C. Scientists and icebergs.D. Iceberg—scientists headache.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。
吉林长春实验中学2019届高三英语上学期期中试卷(带答案)
吉林长春实验中学2019届高三英语上学期期中试卷（带答案）长春市实验中学2018-2019 学年上学期期中测试高三英语试卷第I卷（共100分）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. Which team lost the basketball match? A. Class One. B. Class Two. C. Class Three. 2. How does the woman keep slim? A. By going on a diet.B. By eating fruit and vegetables.C. By doing physical exercise.3. What does the man think of the lecture? A. It was interesting and easy to follow. B. It was far beyond his understanding. C. It was as difficult as he had expected.4. What is the probable relationship between the speakers? A. Teacher and student. B. Boss and secretary. C. Husband and wife.5. Where does the conversation probably take place? A. In a store. B. In an office.C. In a bank. 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。
吉林省实验中学2019届高三上学期第四次模拟考试数学(文)试题(解析版)
吉林省实验中学2018---2019学年度上学期高三年级数学（文）第Ⅰ卷（选择题共60分）一.选择题：（本大题共12小题，每小题5分，共60分.在每小题给出的四个选项中，只有一项符合题目要求.）1.已知集合，集合B为整数集，则A∩B＝（）A. {－1，0}B. {0，1}C. {－2，－1，0，1}D. {－1，0，1，2}【答案】D【解析】试题分析：，为整数集，，选D考点：集合的运算2.若复数，则复数z在复平面内对应的点在（）A. 第一象限B. 第二象限C. 第三象限D. 第四象限【答案】D【解析】【分析】根据复数的除法运算得到结果即可.【详解】复数对应的点坐标为位于第四象限。
故答案为：D.【点睛】这个题目考查了复数的几何意义，z＝a＋bi(a，b∈R)与复平面上的点Z(a，b)、平面向量都可建立一一对应的关系(其中O是坐标原点)；复平面内，实轴上的点都表示实数；虚轴上的点除原点外都表示纯虚数．涉及到共轭复数的概念，一般地，当两个复数的实部相等，虚部互为相反数时，这两个复数叫做互为共轭复数，复数z的共轭复数记作．3.命题“，”的否定为（）A. ，B. ，C. D.【答案】C全称性命题的否定是特称性命题，所以选C.4.函数的单调递减区间为（）A. B. C. D.【答案】D【解析】设，可得函数的定义域为，且．故本题即求函数在定义域上的减区间．再利用二次函数的性质求得在定义域上的减区间为，故选D．5.已知，则的值为（）A. B. C. D.【答案】A【解析】【分析】根据题意将两式平方得到，再由二倍角公式可得到结果.【详解】已知= 两式平方得到由二倍角公式得到=.故答案为：A.【点睛】三角函数求值与化简必会的三种方法(1)弦切互化法:主要利用公式tan α=;形如,a sin2x+b sin x cos x+c cos2x等类型可进行弦化切.(2)“1”的灵活代换法:1=sin2θ+cos2θ=(sinθ+cosθ)2-2sinθcosθ=tan等.(3)和积转换法:利用(sinθ±cosθ)2=1±2sinθcosθ,(sinθ+cosθ)2+(sinθ-cosθ)2=2的关系进行变形、转化.6.《张丘建算经》是我国南北朝时期的一部重要数学著作，书中系统的介绍了等差数列，同类结果在三百多年后的印度才首次出现．书中有这样一个问题，大意为：某女子善于织布，后一天比前一天织的快，而且每天增加的数量相同，已知第一天织布5尺，一个月（按30天计算）总共织布585尺，问每天增加的数量为多少尺?该问题的答案为A. 尺B. 尺C. 尺D. 尺【答案】C【解析】【分析】设每天增加的数量为d尺，利用等差数列的求和公式可得：30×5+d=585，解出即可得出．【详解】设每天增加的数量为d尺，根据等差数列的前n项和公式得到30×5+d=585，解得d=1．故选：C．【点睛】本题考查了等差数列的求和公式，考查了推理能力与计算能力，属于中档题．解决等差等比数列的小题时，常见的思路是可以化基本量，解方程；利用等差等比数列的性质解决题目；还有就是如果题目中涉及到的项较多时，可以观察项和项之间的脚码间的关系，也可以通过这个发现规律。
2019-2020学年吉林省实验中学高三英语上学期期中考试试题及答案
2019-2020学年吉林省实验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ACharlie Thorne and the Last Equationby Stuart GibbsThe CIA is on a task to find an equation (方程式) called Pandora, which could destroy the world if the wrong people get it. For help, they turn to Charlie, a 12-year-old girl who's as smart as Albert Einstein. People who like action-packed mysteries will enjoy reading this exciting book.AstroNutsby Jon Scieszka and Steven WeinbergIn AstroNuts, the Earth has been destroyed by humans for thousands of years. Four animals set out from Mount Rushmore, the headquarters (总部) of NNASA. Their task is to find a new planet fit for human life. Finally, they discover one: Plant Planet. The story's theme (主题) is simple: Don't harm the planet. Readers who love fantasy will enjoy AstroNuts.Stargazingby Jen WangChristine hears that Moon, who's new in town, is the kind of kid who beats people up for fun. But Moon and her mum come to live with Christine's family, and the two kids become best friends. Moon even shares a big secret with Christine. Stargazing is based on author Jen Wang's experiences as a child. The story is about the power of friendship and how people are able to change.Roll with Itby Jamie SumnerRoll with It is a story about a 12-year-old girl named Ellie. She has difficulty walking on her own and uses a wheelchair. When Ellie and her mum move to another state to take care of Ellie's grandpa, she must learn to navigate (处理) a new school and new friendships. This page-turner is a must-read for everyone. It's a heartwarming story that really shows the value of familyand how being different is special.1. Which book tells readers to protect the place we live in?A.AstroNutsB.Stargazing.C.Roll with It.D.Charlie Thorne and the Last Equation.2. What makes Stargazing different from the other three books?A. It talks about friendship.B. It tells stories about animals.C. It contains lots of scientific knowledge.D. It was written according to the author's experiences.3. What happened to Ellie?A. She had difficulty in making friends.B. She had an accident which left her in a wheelchair.C. She went to a new school and had to start all over again.D. She lost her mum and was taken care of by her grandpa.BI come to theUnited Statesten year ago. I would always say that I was trying to study, but there were always things like work and my kids that would not allow me to start.Now I realized that those were only excuses. What stopped me was that I was afraid to start studying again. I always believed I would learn by myself.One day, however, my son told me that he was sad because his friends would come over and I didn’t understand them because I didn’t speak English. He was also sad because I could never help him with his homework. That same day, I told myself, “Rocio, you have to start believing in yourself and you will see you can make it.”The next day, I went downtown to look for a big banner (横幅) in front of the school which said that they offered classes for adults. I came in to see if I could join, but the classes were closed already. That night I took the kids to the movies, and on the way back, I told them we would take a new route. I ended up getting lost. That’s the way I foundChaffeyCollege. The following Monday, I went to ask for information. They told me that summer school was starting that week.That’s how I started studying English last summer. It is difficult, but I have had great rewards. My daughter had to write a story for school. It was about the female they most admired and why . She wrote that I was the person she most admired because I had started going to College. I will never forget this.4. According to the passage, the author probably is a .A. teacherB. doctorC. fatherD. mother5. What made the author make up her mind to study English?A. What her son said.B. What her daughter said.C. Thinking about herself.D. Thinking about her daughter.6. How did they findChaffeyCollege?A. On the way to the movies.B. They took a new route and got lost.C. Ask a stranger for information.D. According to the banner.7. Which of the following is NOT true?A. The author came to theUnited Statesfrom another country.B. The author had two children at least including one daughter.C. What really changed the author’s life was she believed in herself.D. The author wrote that she was the person her son most admired.CAlaska—The American city Anchorage is recovering from a powerful earthquake Friday that damaged public buildings, homes and roads.The 7.0 earthquake caused buildings to slake. But there have been no reports of deaths, serious injuries or damage. Officials say the quake has not affected transportation of food and her supplies. “The ships are coming in on schedule, the supply lines are at this point working well,” the government told reporters Sunday.The Glenn Highway was probably the road hit hardest by the earthquake. It connects the state's largest city to other parts in the north. Traffic has been heavy and slow—moving since the quake. Drivers are being guided. Groups of workers are trying to rebuild areas where the quake left large holes in the road.People who are still nervous after the major quake have been more upset by more than 1, 700 aftershocks. “Anything that moves, you feel terrified”said David, whose home suffered structural(结构)damage, including a sunken foundation(地基). Actually, Alaska came up with strict building rules after a 9. 2 earthquake in 1964. That was the second most powerful earthquake on record.Government officials said a public health center promises that moneyfor medical treatment will continue to come. Mental healthy service(心理健康服务)is also available for people hurt by the disaster.Earthquake experts say there is a 4 percent chance of another 7. 0 earthquake or greater in the following week. "The chance is very small, but its not impossible, ” said the expert, Paul Caruso.8. What was the result of the earthquake?A. Buildings were damaged.B. Food supply was cut off.C. Many people were killedD. The ships could not come in.9. Why is the traffic slow on the Glenn Highway?A. Because small quakes hit the city.B. Because falling rocks are a danger.C. Because the highway is badly damaged.D. Because drivers are misled.10. What can you learn from Paul Caruso?A. Another greater earthquake is on the way.B. Chances still exists of another earthquake.C. It will be safe in the 1th week after the quake.D. There is no possibility for more quakes.11. Where can your possibly read the passage?A. Ina story book.B. In a travel journal.C. In a poster.D. In a newspaper.DFairy tales perform many functions. They entertain, encourage imagination and teach problem—solving skills. They can also provide moral lessons, highlighting the dangers of failing to follow the social codes that let human beings coexist in harmony. Such moral lessons may not mean much to a robot, but a team of researchers at Georgia Institute of Technology believes it has found a way to use the fairy tales as moral lessons that AI (artificial intelligence) can take to its cold, mechanical heart.The collected stories of different cultures teach children how to behave in socially acceptable ways with examples of proper and improper behavior in fables, novels and other literature. We believe story comprehension in robots can prevent the intelligent robots from killing humanity which was predicted and feared by some of the biggest names in technology including Stephen Hawking and Bill Gates. This system is called “Quixote” (堂吉诃德). It collects story plotsfrom the Internet and then uses those stories to teach robots how to behave.The experiment done by the designers involves going to a drugstore to purchase some medicine for a humanwho needs to get it as soon as possible. The robot has three options. It can wait in line; it can interact with the store keeper politely and purchase the medicine with priority; or it can steal the medicine and escape. Without any further directives(指令), the robot will come to the conclusion that the most efficient means of obtaining the medicine is to steal it. But Quixote offers a reward for waiting in line and politely purchasing the medicine and a punishment for stealing it. In this way, the robotwill learn the moral way to behave on that occasion.Quixote would work best on a robot that has a very limited function. It’s a baby step in the direction of teaching more moral lessons into robots. We believe that AI has to be trained to adopt the values of a particular society, and in doing so, it will strive to avoid unacceptable behavior. Giving robots the ability to read and understand our stories may be the most efficient means.12. What function do fairy tales perform in the robots?A. They entertain robots.B. They highlight dangers.C. They make robots more intelligent.D. They enable robots to behave morally.13. What is “Quixote” in the text?A. A punishment systemB. A character in literatureC. A big name in technologyD. A software educating robots.14. What does the designer expect robot to do in the experiment?A. To take advantage of its privilege.B. To finish the task most efficiently.C. To perform in a good mannered way.D. To be rewarded by the storekeeper115. Which of the follow can bestexpress the author’s opinion?A. Robots will definitely have more functions.B. Robots with human’s emotions are perfect.C. Training robots to be socially acceptable is necessary.D. The development of robots is still in a baby step.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。
2019-2020学年吉林市实验中学高三英语上学期期末考试试卷及答案
2019-2020学年吉林市实验中学高三英语上学期期末考试试卷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ACome and enjoy Vivaldi's TheFour Seasonsperformed by live musicians!Tickets△Zone A Sating (Excellent Visibility, $75)△Zone B Seating (Great Visibility, $60)△Zone C Seating (Good Visibility, $45)△Zone D Seating (Restricted Visibility, 30)Zone A and Zone B audiences will get the chance to take pictures with the performers on the stage after the show.Highlights* A beautiful venue bathed in candlelight.*Classical music performance by the Angel Strings quartet*A safe and socially-distanced event, ensuring you are comfortable and at ease.General Info*Dates and times: Various dates, at 6:30 pm and 8:30 pm (select during purchase).*How long: 65 minutes. Doors open 45 minutes before the start time. We recommend you arrive at least 30 minutes before the start of the event, as late entry is not permitted.*Where: Events on Oxlade*Age requirement: Must be 8 years old or older to attend. Anyone under the age of 16 must be accompanied by an adult.*Please note: The 6:30 pm seating will take place during daylight hours outdoors, and the space will not be that dark. In the case of rain, the event will be moved to the indoor area of the venue.DescriptionWhether you're looking for a beautifully unique classical music performance or a romantic candlelit experience, this performance is for you. You don't need to know all things about Vivaldi to enjoy the evening; simply sit back and admire the wonderful atmosphere and the pieces you'll hear.Join our musicians for an evening under the stars, and prepare to be taken into the clouds with Vivaldi' s most treasured masterpieces!1.What can someone with a $45 ticket do?A.Perform on the stage.B.Enjoy good visibility.C.Select a seat in Zone B.D.Take photos with the musicians.2.What should potential audiences keep in mind?A.Arrive at the venue on time.B.Learn about Vivaldi in advance.C.The performance lasts 45 minutes.D.The event will be canceled if it rains.3.What do we know about the 8:30 p.m. performance?A.It welcomes children under the age of 8.B.Its performers differ on different dates.C.Its stage will be decorated with candles.D.It will be shown in the indoor area of the venue.BThe first patient who died on my watch was an older man with a faulty heart. We tried to slow it down with treatment, but it suddenly stopped beating completely. Later, whenever I would have a case like that one, I found myself second-guessing my clinical management. However, it turns out that thinking twice may actually cause more harm than good.In a working paper, Emory University researchers found that when doctors delivering a baby have a bad result, they are more likely to switch to a different delivery method with the next patient, often unnecessarily and sometimes with worse results.Because doctors make so many decisions that have serious consequences, thefalloutfrom second-guessing appears especially large for us. A 2006 study found that if a patient had a bleed after being prescribed (开药) warfarin, the physician was about 20% less likely to prescribe later patients the blood thinner that prevents strokes (中风). However, if a patient was not on warfarin and had a stroke physicians were still no more likely to prescribe warfarin to their other patients.These findings highlight interesting behavioral patterns in doctors. In the blood-thinner study, doctors were more affected by the act of doing harm (prescribing a blood thinner that ended up hurting doctors were more affected by the act of doing harm(prescribing a blood thinner that ended up hurting a patient) and less affected by letting harm happen (not prescribing a blood thinner and the patient having a stroke). Yet a stroke is often morepermanent and damaging than a bleed.But this phenomenon is not unique to medicine. ''Overreaction to Fearsome Risks'' holds true for broader society.For instance, sensational headlines about shark attacks on humans in Florida in 2001 caused a panic and led the state to prohibit shark-feeding expeditions. Yet shark attacks had actually fallen that year and, according to the study, such a change was probably unnecessary given the extremely small risk of such an attack happening.Humans are likely to be influenced by emotional and often irrational (不理性的) thinking when processing information, bad events and mistakes. As much as we don't want to cause an unfortunate event to happen again, we need to be aware that a worst situation that can be imagined doesn't necessarily mean we did anything wrong. When we overthink, we fail to rely on thinking based on what we know or have experienced. Instead, we may involuntarily overanalyze and come to the wrong conclusion.I have treated dozens of patients who presented with the same illnesses as my first patient, who died more than a year ago. Instead of second-guessing myself, I trusted my clinical instinct (本能) and stayed the course. Every one of those patients survived. You should trust your instinct in your life, too.4. The first two paragraphs suggest that________.A. bad medical outcomes affect doctorsB delivering babies can be difficult workC. some doctors are not very experiencedD. doctors sometimes make silly mistakes5. In the blood-thinner study, doctors________.A. tend to prescribe less effective medicineB. are more concerned about the patients' safetyC. become less confident in writing a prescriptionD. believe a stroke is more treatable than a bleeding6. What does the underlined word ''fallout'' in Paragraph 3 probably mean?A. ResultB. BenefitC. DifferenceD. Absence7. The author will probably agree that________.A. we should not doubt our own decisionsB. our experience will pave way for our futureC. humans are emotional and irrational on the wholeD. instincts don't necessarily lead to wrong directionsCIt was once considered an important status symbol ---but having a home phone is increasingly seen asa white elephant. New figures show that one in five households no longer bother with a landline（固定电话），and almost a third of those that do never actually use it.The vast majority of people who still have a home phone ——72 percent ——say they only have it because it is part of their broadband package.But that's not the only reason to desert the home phone - 20 percent of those surveyed said that they were fed up with the number of cold calls and would-be scammers（诈骗者）.Digital media expert Dr. Elinor Carmi said there was a generational and social divide in phone use. She explained："If you,re young and have the mobility to go outside, you would rely on a mobile phone. But if you are older, disabled and perhaps poorer, our research shows you're more likely to use a landline. If you are richer, you will have access to more smart devices --- a smart TV, smartphone or laptop. But the poorer you are --- or if you are older, your use of these devices is more limited.”Last year, research from regulator Ofcom found that the amount of time spent on landline calls annually in theUKhad halved over just six years, to 54 billion minutes. The new study also showed that more than a quarter of households have decided to find a broadband provider that does not charge for their unused landline, but only six percent have done so.8. The underlined part “ a white elephant" in Paragraph 1 probably refers to something that isA. costly but effectiveB. useful and beautifulC. expensive but uselessD. cheap and necessary9. What's the main reason why some people still have a home phone?A. Their broadband package contains it.B. Their family can only afford to use it.C. They are used to using a home phone.D. They consider it an important status symbol.10. Which of the following is more likely to use a landline?A. A young adventurer.B. An old poor gardener.C. An outdoor photographer.D. A famous indoor designer.11. What's the best title of the text?A. End of the landline?B. Fed up with cold calls?C. The history of phonesD. Different choices of phonesDFrom skateboarding to Fleetwood Mac, TikTok users got creative in a pandemic (流行病) year with new songs, dances and shows in 60 seconds or less.The social mediavideo app on Wednesday shared its list of top 100 videos, creators and trends in America during 2020. “These videos brought joy and inspiration to millions of Americans in the rough year,” said Kudzi Chikumbu, director of creator community at TikTok.The platform has been widely associated with Generation Z (people born after 1996), millennials (people born in the 1980s or 1990s) and influencers who have started careers based on the shared videos.The Weeknd'sBlinding Lightsand Jason Derulo's Savage Loveinspired TikTok dance challenges that made them among the top songs used on the app.For some TikTok creators, the pandemic itself became inspiration to create a connection with other users. Comedian Caitlin Reilly used the app during quarantine (隔离) to make fun of those annoying coworkers for one of the top liked videos. And singer Curtis Roach made an song for the endless days at home with his song Bored in the House.The second most popular video was an Idaho man named Nathan Apodaca who shot to fame after coolly singing Dreams by Fleetwood Mac, while skateboarding on a highway.But the most liked TikTok video was awarded to Bella Poarch with 45 million followers, who created a simple but interesting video with a few seconds of well-timed head nods and eye rolls.While the app might be designed for youth, Chikumbu said that the growth of TikTok this year has pushed it more into mainstream culture. “You're seeing everyone from the teenager to the college students with their parents and then their grandparents all making videos,” said Chikumbu. “And now TikTok trulytranscendsgenerations, particularly in this year when people had a lot of time to dig in and not only watch, but try.”12. What do we know about The Weeknd?A. He created the famous song Dreams.B. He started a career based on shared videos.C. He is probably a popular singer on TikTok.D. He organized the TikTok dance challenges.13. What did Curtis Roach think of his life during quarantine?A. Meaningful.B. Peaceful.C. Content.D. Uninteresting.14. The most popular TikTok video in 2020 was created by ______.A. Caitlin ReillyB. Curtis RoachC. Nathan ApodacaD. Bella Poarch15. What does the underlined word “transcends” in the last paragraph mean?A. Makes use of.B. Goes beyond.C. Calls on.D. Takes charge of.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。
吉林省实验中学2019届高三上学期第四次模拟考试数学(文)试卷(含解析)
2019届吉林省实验中学高三上学期第四次模拟考试数学（文）试题数学注意事项：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。
2．选择题的作答：每小题选出答案后，用2B 铅笔把答题卡上对应题目的答案标号涂黑，写在试题卷、草稿纸和答题卡上的非答题区域均无效。
3．非选择题的作答：用签字笔直接答在答题卡上对应的答题区域内。
写在试题卷、草稿纸和答题卡上的非答题区域均无效。
4．考试结束后，请将本试题卷和答题卡一并上交。
一、单选题1．已知集合A ={x|(x +1)(x −2)≤0}，集合B 为整数集，则A ∩B = A {−1,0}． B ．{0,1} C ．{−2,−1,0,1} D ． {−1,0,1,2} 2．若复数z =2+i i，则复数z 在复平面内对应的点在A ．第一象限B ．第二象限C ．第三象限D ．第四象限 3．命题“∀∈ln2−1，x 2−3x +2≤0”的否定为A ．∀∈[1,2]，x 2−3x +2>0B ．∀∉[1,2]，x 2−3x +2>0C ．∃x 0∈[1,2],x 02−3x 0+2>0D ．∃x 0∉[1,2],x 02−3x 0+2>04．函数y =ln (x 2−4x +3)的单调递减区间为A ．(2,+∞)B ．(3,+∞)C ．(−∞,2)D ．(−∞,1) 5．已知√22(sin α2−cos α2)=√63，则sinα的值为 A ．−13 B ．13 C ．2√23 D ．−2√236．《张丘建算经》是我国南北朝时期的一部重要数学著作，书中系统的介绍了等差数列，同类结果在三百多年后的印度才首次出现．书中有这样一个问题，大意为：某女子善于织布，后一天比前一天织的快，而且每天增加的数量相同，已知第一天织布5尺，一个月（按30天计算）总共织布585尺，问每天增加的数量为多少尺?该问题的答案为A ．12尺 B ．23尺 C ．1尺 D ．32尺7．已知向量a ⃑与b ⃑⃑的夹角为120°，|a ⃑|=3,|a ⃑+b ⃑⃑|=√13则|b ⃑⃑| A ．5 B ．4 C ．3 D ．18．阅读右边的程序框图,运行相应的程序,则输出i 的值为 A.3 B.4 C.5 D.69．已知某个几何体的三视图如下，根据图中标出的尺寸（单位：cm ），可得这个几何体的体积是 A ．4 0003cm 3 B ．8 0003cm 3C ．2 000cm 3D ．4 000cm 310．已知椭圆x 2a 2+y 2b 2=1(a >b >0)的左右顶点分别为A 1，A 2，点M 为椭圆上不同于A 1，A 2的一点，若直线M A 1与直线M A 2的斜率之积等于−12，则椭圆的离心率为A ．12B ．13C ．√22D ．√3311．已知a 是实数，则函数f(x)=1+asinax 的图象不可能是12．函数f(x)的导函数f′(x)，对−1m，都有f′(x)>f(x)成立，若f(ln2)=2，则满足不等式f(x)>e x的x的范围是A．x>1 B．0<x<1 C．x>ln2 D．0<x<ln2二、填空题13．已知{2x−y+2≥0x+y−2≤0y−1≥0，则函数z=3x−y的取值范围是______________．14．若曲线y=lnx(x>0)的一条切线是直线y=12x+b，则实数b的值为 ___________ 15．已知矩形ABCD的顶点都在半径R=4，球心为O的球面上，且AB = 6，BC =2√3，则棱锥O−ABCD的体积为_______________.16．定义平面向量的一种运算：a⃑⊗b⃑⃑=|a⃑|⋅|b⃑⃑|sin<a⃑,b⃑⃑>（<a⃑,b⃑⃑>是向量a⃑和b⃑⃑的夹角），则下列命题：①a⃑⊗b⃑⃑=b⃑⃑⊗a⃑；②λ(a⃑⊗b⃑⃑)=(λa⃑)⊗b⃑⃑；③若a⃑=λb⃑⃑且λ>0，则(a⃑+b⃑⃑)⊗c⃑=(a⃑⊗c⃑)+(b⃑⃑⊗c⃑)；其中真命题的序号是___________________.三、解答题17．已知向量a⃗=(sinx,−1)，b⃑⃗=(√3cosx,−12)，函数f(x)=(a⃗+b⃑⃗)⋅a⃗−2．（1）求函数f(x)的单调递增区间；（2）已知a,b,c分别为ΔABC内角A,B,C的对边，其中A为锐角，a=√3,c=1，且f(A)=1，求ΔABC的面积S．18．城市公交车的数量太多容易造成资源的浪费，太少又难以满足乘客的需求，为此，某市公交公司在某站台的60名候车的乘客中随机抽取15人，将他们的候车时间作为样本分成5组，如下表所示：（1）估计这15名乘客的平均候车时间；（2）估计这60名乘客中候车时间少于10分钟的人数；（3）若从上表第三，四组的6人中选2人作进一步的问卷调查，求抽到的2人恰好来自不同组的概率。
吉林省实验中学2019届高三上学期第四次模拟考试数学(文)试题(图片版)
高三年级数学（文）第四次月考答案
一． 选择题：本大题共 12 小题，每小题 5 分．
题 号
1
2
[ 来
3
4
5
6
7
8
9
10
11
12
答 案
D
D
C
D
A
C
B
B
B
C
D
C
二．填空题：本大题共 4 小题，每小题 5 分．
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1 ≥e，则 f′（x）≥0 恒成立，f（x）在（0，e]递增， m 4 ∴f（x）最大值=f（e）=me+1=-3，解得：m= 不合题意， e 1 1 若 ＜e，此时 f′（x）＞0 在（0， ）上成立， m m 1 f′（x）＜0 在（ ，e]上成立， m
此时 f（x）在（0，e]先增后减， ∴f（x）max=f（
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19. （1）证明：∵平面 PAD 垂直矩形平面 ABCD ，∴CD⊥平面 PAD 取 DC 中点 H，连接 EH，EH⊥CD，连接 FH，则 FH⊥CD 则 CD⊥平面 EHF，∴平面 EHF//平面 PAD，又 EF∈平面 EHF ∴EF 平行 PAD； …………4 分
5 , 2A , 6 6 6 2
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18.(1)平均候车时间为
(2.5 2 7.5 6 12.5 4 17.5 2 22.5 1)
2021-2022学年吉林省长春市实验中学高三第四次模拟考试英语试卷含答案
2021-2022高考英语模拟试卷注意事项1．考试结束后，请将本试卷和答题卡一并交回．2．答题前，请务必将自己的姓名、准考证号用0．5毫米黑色墨水的签字笔填写在试卷及答题卡的规定位置．3．请认真核对监考员在答题卡上所粘贴的条形码上的姓名、准考证号与本人是否相符．4．作答选择题，必须用2B铅笔将答题卡上对应选项的方框涂满、涂黑；如需改动，请用橡皮擦干净后，再选涂其他答案．作答非选择题，必须用05毫米黑色墨水的签字笔在答题卡上的指定位置作答，在其他位置作答一律无效．5．如需作图，须用2B铅笔绘、写清楚，线条、符号等须加黑、加粗．第一部分（共20小题，每小题1.5分，满分30分）1．Though a farmer, Zhu zhiwen has became a huge success as a singer, whose story is really ________ of great inspiration.A．everything B．nothing C．the one D．one2．--- I’ll pay a visit to Hong Kong. Would you mind keeping an eye on my house?--- Not at all. ______.A．I’d rather not B．I’d be happyC．I’ve no time D．I’d like to3．— How do you find your trip to Sanya during the three-day New Year Holiday ?—________ I can’t speak too highly of it.A．Oh, wonderful indeed! B．It’s awful!C．Don’t mention it．D．You said it.4．The incident turned him into different person, even if he did not realize it at beginning.A．a; a B．the; the C．the; a D．a; the5．It is believed that many more popular terms ________ on the Internet this year.A．will be created B．have createdC．are created D．are creating6．Keeping a regular sleep schedule is important for setting a baby's body clock,_______researchers note should be in place by about 4 months of age.A．whose B．which C．when D．where7．American singer Taylor Swift, 21, ________ big at the 2011 Academy of Country Music Awards in the US on April 3rd. A．stood B．gave C．scored D．made8．—Why can’t you give me another chance?—________, but I don’t think you are good at manageme nt.A．No offence B．No worries C．No need D．No wonder9．Don't give up half way, and you will find the scenery is more beautiful when you reach the destination than when you _______.A．start off B．have started offC．started off D．will start off10．--- Do you know what Tom does all day ?---- I know he spends at least as much time watching TV as he ____________his lessons.A．is doing B．does C．spends to do D．does doing11．---My son is addicted to computer games. He is hopeless，isn't he？---Yes，_____________he is determined to give up and start all over.A．if B．unlessC．though D．so12．Faced with economic slowdown, some companies are planning to use robots to ______ human workers to reduce their labor costs.A．compensate B．substituteC．symbolize D．discriminate13．It's that time of year again，when Alipay ______ us just how much we've been spending，and on what．A．reminds B．remindedC．has reminded D．is reminding14．Y ou don’t need an invitation to help others. Give help _____you are asked.A．if B．asC．though D．before15．---I hear you’ll cancel all your plans and appointments. Why?---They _____ my life. I just can’t stop.A．control B．controlledC．have controlled D．have been controlling16．When all is said and done, there doesn’t seem to be ________ a mys tery to explain.A．kind of B．close toC．far from D．much of17．Though lacking the necessary working experience, my cousin got the job ______ her confidence and flexibility. A．in terms of B．in response toC．by virtue of D．with respect to18．Quantities of soil ________ in the area, resulting in the increasing number of natural disasters. A．is washed away B．have washed awayC．have washed away D．have been washed away19．----- Hi, Mark. How was the musical evening?----- Excellent! Ales and Andy performed _________ and they won the firs prize.A．skillfully B．commonly C．willingly D．nervously20．—What do you think of the movie last night?—When I got there it _______, so I only watched the end.A．finished B．had finishedC．was finishing D．has finished第二部分阅读理解（满分40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。
【100所名校】吉林省实验中学2019届高三上学期第四次模拟考试数学(文)试卷 Word版含解析
（Ⅱ）证明：平面 平面 ；
（Ⅲ）求四棱锥 的体积．
20．已知椭圆C： 的离心率为 ，过椭圆的焦点且与长轴垂直的弦长为1．
（Ⅰ）求椭圆C的方程；
（Ⅱ）设点M为椭圆上第一象限内一动点，A，B分别为椭圆的左顶点和下顶点，直线MB与x轴交于点C，直线MA与y轴交于点D，求证：四边形ABCD的面积为定值．
(3)和积转换法:利用(sinθ±cosθ)2=1±2sinθcosθ,(sinθ+cosθ)2+(sinθ-cosθ)2=2的关系进行变形、转化.
6．C
【解析】
【分析】
设每天增加的数量为d尺，利用等差数列的求和公式可得：30×5+ d=585，解出即可得出．
【详解】
设每天增加的数量为d尺，根据等差数列的前n项和公式得到30×5+ d=585，
A． 尺 B． 尺 C． 尺 D． 尺
7．已知向量 与 的夹角为120°， 则
A．5 B．4 C．3 D．1
8．阅读右边的程序框图,运行相应的某个几何体的三视图如下，根据图中标出的尺寸（单位：cm），可得这个几何体的体积是
A．
B．
C．
D．
10．已知椭圆 的左右顶点分别为A1，A2，点M为椭圆上不同于A1，A2的一点，若直线M A1与直线M A2的斜率之积等于 ，则椭圆的离心率为
2019届吉林省实验中学
高三上学期第四次模拟考试数学（文）试题
数学
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。
2．选择题的作答：每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑，写在试题卷、草稿纸和答题卡上的非答题区域均无效。
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吉林省实验中学2018-2019学年度上学期高三年级第四次模拟考试英语试卷考试时间：120分钟试卷满分：150分第Ⅰ卷（选择题共100分）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 will the woman do on Sunday?A.Visit a lake.B. Prepare for a test.C. Go on a picnic.2.Where does the conversation most probably take place?A. At a hotel.B. In a market.C. In a restaurant.3.Where should the woman take a bus?A.Across the street.B. On Bank street.C. Opposite the art museum.4.How will the man get in touch with the woman?A. Through the computer.B. Through his own phone.C. Thr ough someone else’s phone.5.Why does the man refuse to go to the library?A.He doesn’t like to study at the library.B.He doesn’t plan to study tonight.C.He already passed the test.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。
听第6段材料，回答第6-7题。
6.What will the woman be doing a t 3 o’clock?A.Returning from the airport.B. Attending a meeting.B.Catching a flight.7.When is the woman expected to meet Mr. Kimoto?A.At 4:15.B. At 3:45.C. At 3:30.听第7段材料，回答第8、9题8.What are the speakers talking about?A.A health club.B. A way to exercise.C. Busy schedules.9.What clothes does the man need?fortable clothes.B. Professional clothes.C. Thin clothes.听第8段材料，回答第10至12题10.What is the man doing?A.Asking for information about a store.B.Buying vegetables with the woman.C.Introduce a store to the woman.11.What is the greatest advantage of Sunflower?A.Its convenient position.B. Its wide selection.C. Its low price.12. What does the man think of the vegetables of Sunflower?A. Rarely seen at other stores.B. A bit expensive.C. Not fresh听第9段材料，回答第13至16题12.What does the man ask the woman to do?A. Lend him a textbook.B. Help him study.C. Join his team.14. What subject is the woman good at?A. Geography.B. History.C. Math.15.What does the man offer the woman?A. Books of different subjectsB.A general idea of a book.C. A list of questions16.Where will the event take place this year?A. In the science room.B. In the library.C. In the gym.听第10段材料，回答第17至20题17.How will the listeners get to the hotel from the airport?A.By busB. By boat.C. On foot.18.When does the hotel restaurant open?A.At 8:00 a.m.B. At 7:00 a.m.C. At 6:00 a.m.19.Which place will the listeners visit in the morning?A.Some museums.B. Two islands.C. A square.20.What are the listeners going to do after dinner?A.Enjoy a play.B. See a movie.C. Watch a musical.第二部分阅读理解（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的四个选项（A、B、C和D）中选出最佳选项，并在答题卡上将该项涂黑。
ABangkok Destination GuideTravel in Bangkok is often described as a whirlwind—it’s hot, chaotic, crowded, and full of exotic energy. This popular tourism destination is a city of extremes with majestic temples, floating markets, romantic rooftop restaurants, and a wide range of accommodations to suit every budget. Read through our brief guide to learn about this exciting city and begin planning your journey.Must-See AttractionsBangkok is sometimes referred to as the “Venice of the East” because of its network of canals, so take a boat tour to see sights like the Khmer wats (僧院) and the riverside houses. While exploring the city, you’ll definitely want to sample some of the street food options—often fresher and more unique than in the surrounding restaurants! To get a dose of Thai culture, visit the Wat Arun, the Grand Palace, Wat Parkeaw, and Wat Pho. TransportationThere are two airport that serve Bankok, Suvamabhmi Airport and Don Muang Airport, and both are located about 30 kilometers from city centre. Most travelers who fly into Suvarnabhumi take the airport rail link to get downtown. The most important train station is the Hua Lamphong S tation, and railway lines extend in all directions. It’s not a good idea to travel around Bankok by car since traffic is very congested. Recommended RestaurantsFood is a big deal in Thailand. and there are plenty of cheap eats, high-end restaurants, and street food delights to keep your taste buds satisfied every meal.21. Which month is in the peak season to travel in Thailand?A. March.B. July.C. October.D. December.22. What does the underlined word “its” refer to?A. Venice’s.B. Bangkok’s.C. Khmer’s.D. Thai.23. Why does the author think travelling around Bangkok by car is a bad idea?A. It’s easy to get to the city center.B. It’s easy to reach he railway station.C. It’s easy to meet traffic jam.D. It’s easy to go all directions.24. Where will you go if you want to try expensive Thai food?A. In Din Daeng.B. In Issaya Siamese Club.C. In Lung Yai.D. In Bankara Ramen Restaurant.BA video recording from Xinhua (9th, Nov. 2017) showing Arabella Kushner, US President Donald Trump's granddaughter, singing Chinese songs and reciting Chinese literary classics caused another Internet sensation (轰动) in China Wednesday night.In the video clip, Arabella, wearing a traditional embroidered Chinese dress, greets President Xi Jinping and his wife Peng Liyuan.The six-year-old sings two songs Our Fields, Beautiful Fields, and My Good Mom. The former, written in 1953 and adored by Chinese teenagers for decades, expresses one's love and affection for the motherland and nature. The latter is a popular nursery rhyme widespread in China.She also displayed knowledge about Chinese literature by reciting Three Character Classic, a Confucianist volume to educate young children, and two ancient poems of Li Bai, Watching the Fall of Lushan Mountain, and Departing from Baidi City in the Morning.Xi spoke highly of the child's Mandarin abilities and said her performance deserved an “A Plus”. He said Arabella was already a star in China and hoped she would visit China one day.Numerous media websites and netizens reposted the video. It has received 2.3 million clicks on Sina Weibo, China's popular social media platform, as of press time.“What a talented and smart girl she is!” Weibo user Yumeiren said. “I hope she can make more contributions to fostering ChinaUS friendship in the future.”Earlier this year, during President Xi's visit to the United States, Arabella has already performed for the president and his wife at the Mar-a-Lago resort in Palm Beach, Florida, on April 6. Standing alongside her parents, Arabella sang Jasmine, a Chinese folk song with her brother Joseph.25．From the passage, we can learn that ________.A．Arabella once sang Jasmine for President Xi in April aloneB．Arabella has a talent for singing Chinese songsC．Arabella has some acquaintance with Chinese ancient poemsD．My Good Mom conveys one's love for his or her motherland26．What does the underlined word in Para.7 probably mean?A．Preventing. B．Proposing.C．Protesting. D．Promoting.27．What is the best title for the passage?A．Arabella's Contribution to China-US RelationshipB．Trump's Granddaughter Wins Chinese Hearts, AgainC．Trump and His Famous GranddaughterD．A Little Shining Star in ChinaCAbout 5,000 children die each day due to preventable diseases such as cholera and dysentery (痢疾) , which spread when people use unclean water for drinking or cooking.A lack of water for personal health leads to the spread of totally preventable diseases like trachoma, which has blinded some six million people.Water troubles also trap many low-income families in a cycle of poverty and poor education and the poorest suffer most from lack of access to water. People who spend much of their time on ill health, caring for sick children, or collecting water at distances averaging 3.75 miles a day don’t have educational and economic opportunities to better their lives.Agriculture is called the lion's share of freshwater worldwide, using some 70 percent, and industrial uses consume another 22 percent. Water areas have no political borders and nations don't always work together to share common resources, so water can be a frequent source of international conflict as well.Day-by-day demand keeps growing, further needing water sources, from great rivers to groundwater. “We’re going deeper into debt on our groundwater use,” Postel said, “and that has very significant impacts on global water security. The rate of groundwater consumption has doubled since 1960.”Some of Earth's groundwater is fossil water created when Earth's climate was far different. Today such wa ter is as limited as petrol. “But we're pumping much of them out faster than ever,” Postel explained. “Humanity's growing thirst also causes a major problem about water and our ecosystems. And that also creates a cost to us, to our sons and to our grandson s, not just to nature.”28. What does the author mainly discuss in the passage?A. Water shortage has been a most serious challenge.B. So many children die of polluted water every day.C. Diseases should be properly controlled and treated.D. Wasting water leads to the unrest of the world.29. Why is agriculture called the lion’s share of freshwater ?A. Because agriculture is much stronger than industry.B. Because more people live on the agricultural produce.C. Because agriculture uses about two-thirds of freshwater.D. Because nations don’t always work together to save water.30. According to what Postel said we can know ____________.A. groundwater is rich for us to useB. there is no need to dig deep for groundwaterC. we are consuming our next generations’ waterD. we should use river water instead of groundwater31. What can we infer form the passage?A. W e shouldn’t use water from rivers.B. We should protect our ecosystems.C. Water should be distributed equally.D. Laws should be passed for groundwater.DImagine you’re standing in line to buy a snack at a store. You step up to the counter and the cashier scans your food. Next, you have to pay. But instead of scanning a QR Code(二维码) with your smart phone, you just hold out your hand so the cashier can scan your fingerprint. Or, a camera scans your face, your eyes or even your ear.Now, this type of technology might not be far away. As technology companies move away from the traditional password, biometric (生物特征识别的) security, which includes fingerprint, face and voice ID, is becoming increasingly popular.In 2013, Apple introduced the iPhone 5s, one of the first smart phones with a fingerprint scanner. Since then, using one's fingerprint to unlock a phone and make mobile payments has become a commonplace, bringing convenience to our lives. And since 2016, Samsung has featured eye-scanning technology in its top smart phones, while Apple's new iphone X can even scan a user's face. But despite its popularity, experts warn that biometrics might not be as secure as we imagine. " Biometrics is ideally good in practice, not so much," said John Michener, a biometrics expert.When introducing the new iPhone's face ID feature, Phil Schiller, Apple's senior vice-president, said. "The chance that a random person in the population could look at your iPhones X and unlock it with their face is about one in a million." But it's already been done. In a video posted on a community website Reddit, two brothers showed how they were each able to unlock the same iPhone X using their own face. And they aren't even twins."We may expect too much from biometrics," Anil Jain, a computer science professor at Michigan State University, told CBS News. "No security systems are perfect."Earlier last year, Jain found a way to trick biometric security. Using a printed copy of a thumbprint, she was able to unlock a dead person's smart phone for the police,according to a tech website Splinter. "It's good to see biometrics being used more," Jain told CBS News, "because it adds another factor for security. But using multiple security measures is the best defense."32. Which is the latest identification technology in a smart phone according to the passage?A. Face scanning.B. Eye scanning.C. QR Code scanning.D. Fingerprint scanning.33. What is a major problem of the iPhone X's face ID system?A. It takes too long to unlock the phone.B. It often fails to recognize its owner's face.C. Face data can be used for other purposes.D. Different faces can be used to unlock the same phone.34. What is Anil Jain's opinion about biometric security?A. It is as secure as traditional measures.B. It is perfect without much improvement.C. It has caused much trouble for the police.D. It should be used with other security measures.35. What does the author intend to tell us in this passage?A. The popularity of biometrics.B. Security problems of biometrics.C. Various problems with biometrics.D. Great changes caused by biometrics.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，选项中有两项为多余选项。