2020北京市顺义区初三一模英语试题

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2020年北京市顺义区中考模拟试卷(一)初中英语

2020年北京市顺义区中考模拟试卷(一)初中英语

2020年北京市顺义区中考模拟试卷(一)初中英语2020年北京市顺义区中考模拟试卷(一)初中英语第I卷笔试选择题(70分)第一部分听力(18分)一、听对话,选择与对话内容相符的图片,将代表图片的字母填写在相应的括号内。

(6分,每题1分,读两遍。

)A. B. C. D.1. ( )2. ( )3. ( )A. B. C. D.4. ( )5. ( )6. ( )二、听对话或独白,完成以下各题。

(12分,每题 1.5分,读两遍)请听第一段对话,回答7、8小题。

7. What season is it in the place where they’re talking?A. It’s summer.B. It’s autumn.C. It’s winter.8. Where does Judy come from?A. Australia.B. England.C. America.请听第二段对话,回答9--11小题。

9. What’s the conversation about?A. Some games.B. A working plan.C. A holiday plan.10. Why do they want to go outing together so much?A. They like the West Lake very much.B. They’ve been busy these days with hard work.C. They haven’t seen each other fo r quite a long time.11. What does the man suggest first?A. Go climbing.B. Go camping.C. Go swimming.请听一段独白,回答12—14 小题。

12. How long did the first balloon trip last in 1783? Eight ______.A. minutesB. hoursC. weeks13. In which year did an American and a Frenchman decide to make a balloon trip?A. 1782.B. 1783C. 178414. From the passage we know that their balloon trip was full of ______.A. dangerB. happinessC. excitement第二部分语言知识运用(52分)三、单项选择(18分,每题1分)从以下各题所给的A、B、C、D四个选项中,选择能够填入空白处的最正确选项。

2020年北京市顺义区中考模拟试卷(二)初中英语

2020年北京市顺义区中考模拟试卷(二)初中英语

2020年北京市顺义区中考模拟试卷(二)初中英语第I卷笔试选择题(70分)第一部分听力(18分)一、听对话,选择与对话内容相符的图片,将代表图片的字母填写在相应的括号内。

(6分,每题1分,读两遍。

)A. B. C. D.1. ( )2. ( )3. ( )A. B. C. D.4. ( )5. ( )6. ( )二、听对话或独白,完成文后各题。

(12分,每题1.5分,读两遍)请听第一段对话,回答7、8小题。

7. What does the woman do? She is a _______.A. teacherB. reporterC. shop assistant8. How often does the man eat fast food?A. During weekdays.B. At weekends.C. Twice a week.请听第二段对话,回答9--11小题。

9. Where are the two speakers? In a _____.A. bookshopB. restaurantC. ticket office10. How many guests will come? About _____.A. fiveB. eightC. ten11. What kind of dinner does the man prefer?A. The cheapest.B. The best.C. We don’t know.请听第三段对话,回答12--14小题。

12. What’s the season?A. SummerB. Autumn.C. Winter.13. What special view will the tourists get in the park?A. Beautiful flowers.B. Birds of all colors.C. Houses of all shapes and styles.14. What do people do here in autumn and winter?A. Take photos.B. Watch birds.C. Enjoy the beauty.第二部分语言知识运用(52分)三、单项选择(18分,每题1分)从以下各题所给的A、B、C、D四个选项中,选择能够填入空白处的最正确选项。

2020北京市中考英语模拟试卷8套(附答案解析)

2020北京市中考英语模拟试卷8套(附答案解析)

all his selfless love showered on me? I promise I will say all good and kind words to my dear
father, no matter how he behaves."
16. The father asked his son about a crow ______ .
A. built
B. will build
C. were built
D. will be built
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A. when you got
B. when did you get
C. when will you get
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Love Him as You Were Once Loved One day, an 80-year-old man was sitting on the sofa with his highly educated son. Suddenly a crow rested on their window. The old man asked his son, "What is this?" The son replied, "It is a crow. " After a few minutes, the father asked his son the second time, "What is this?" The son said, "I have just told you ‘It's a crow'." After a little while, the old father again asked his son, "What is this?" This time the son said to his father impatiently. "It's a crow, a crow." A little later, the father again asked his son the fourth time, "What is this?" The son shouted at his father, "Why do you keep asking me the same question again and again? I have told you so many times ‘IT IS A CROW'. Can't you get it?" A week later, the father was sent to hospital because of his heart problem. While the son was cleaning up the old man's desk, he noticed an old diary. On the first page, it read, "For My Beloved Son". Out of curiosity, the son sat down by the desk and read through the diary. On one page, it wrote, "Today my little son aged three was sitting with me on the sofa. When a crow was sitting on the window, my son asked me 23 times what it was, and I replied to him all 23

2020北京初三一模英语分类汇编—任务型阅读含答案

2020北京初三一模英语分类汇编—任务型阅读含答案

2020北京初三一模英语分类汇编—任务型阅读一、朝阳区Psychologists(心理学家) are interested in the reasons why some people like taking part in risky sports.When they studied people who were learning to jump from a plane with a parachute, they found that the parachutists’ bodies pro duced large amounts of two hormones(激素),adrenaline(肾上腺素) and noradrenaline(去甲肾上腺素), just before they made their jump.These hormones help to prepare us for any sudden activity. Adrenaline increases the heart beat and provides more sugar for the muscles(肌肉), while noradrenaline makes us react(反应) more quickly. However, noradrenaline also supplies energy to a part of the brain which controls feelings of pleasure. A feeling of pleasure caused by this hormone makes certain people want to take part in dangerous sports.Another possible reason is the level of excitement in part of the brain. According to some psychologists, the brain tries to manage a certain level of excitement. They believe that people who have a low level of excitement look for new experiences in order to fire themselves with excitement, but people who usually have a high level of excitement try to avoid risks in order not to become overexcited. If the psychologists are right, people with a low excitement level are the ones who enjoy taking part in dangerous sports and activities.It is thought that people with low levels of excitement have a slower-reacting nervous system than people with higher levels. So it may be possible to find out your level of excitement by testing your nervous system. A quick way of doing this is to put some lemon juice on your tongue(舌头). If you produce a lot of saliva(唾液), your nervous system has been affected(影响) by the lemon and so you probably have a high level of excitement; if you produce little saliva, you probably have a low excitement level. If you have a low level, you might enjoy taking part in risky sports. However, this does not mean that you have to try parachuting!34.Did the parachutists’ bodies produce large amounts of adrenaline and noradrenaline before they made their jump? _________________________35.What does adrenaline increase and provide?_________________________36.Why do people with a high level of excitement try to avoid risks?_________________________37.How can people find out their level of excitement?_________________________38.Who may enjoy taking part in risky activities?_________________________二、丰台区Hope for TigersIn 2010, the World Wildlife Fund (WWF) brought bad news that the world tiger population had hit an all-time low. There were just 3,200 tigers left in the wild, about half as many as there had been ten years before.Now there’s good news: Tigers could be making a comeback. There were about 4,000 tigers in the world in 2019. In July, India, which has 70% of the world’s tiger, announced(宣布) that its tiger population had reached nearly 3,000. That’s a 30% rise in just four years.India’s success was years in the making. In 2006, habitat(栖息地) loss made the number of India’s tigers reduce to only 1,411. So the Indian government decided to take a stronger plan of protection. Since its Wildlife Protection Act became law, India has given tigers a high level of protection.Also, India’s latest tiger amount was the work of thousands of scientists. They covered 150,000 square mil es of tiger habitat, using thousands of cameras to record the animal’s movements. With the help of their research, India created 50 reserves(保护区), where tigers can spread out and hunt(捕猎).It’s when the big cats move away from the reserves that trouble starts. “When tigers leave protected reserves, they often run into local people. We cannot save wildlife without the cooperation of the people.” says wildlife expert Shari Rodriguez. Therefore, India’s government has been moving villages away from reserves. “In India, there is a lot of national pride in tigers. They are India’s biggest attraction. Villagers benefit from jobs in the national parks or from selling art works to tourists.”But challenges remain for tigers all over Asia. They are hunted for their skin, and their teeth are sold as medicine. “They’re still in danger,” Rodriguez says. She draws hope from India’s success, “This is a small, small victory in a long war against dying out.”34.How many tigers were there in the world in 2019?__________________________________________35.Why did Indian government take a stronger plan of protection in 2006?__________________________________________36.What happened to India with the help of scientists’ research?__________________________________________37.What are the challenges for tigers all over Asia?__________________________________________38.What are Paragraph 3 to Paragraph 5 mainly about?__________________________________________三、海淀区实验中学阅读短文,根据短文内容回答问题。

北京市顺义区2024年中考英语一模试卷

北京市顺义区2024年中考英语一模试卷

北京市顺义区2024年中考英语一模试卷全文共3篇示例,供读者参考篇1Beijing Shunyi District 2024 Senior High School Entrance Examination English First Mock Exam PaperPart I Listening (30 points)Section A: Listening Comprehension (10 points)Directions: In this section, you will hear ten short conversations. At the end of each conversation, a question will be asked about what was said. The conversations will be spoken only once. After you hear a conversation and the question about it, read the four possible answers on your paper, and decide which one is the best answer to the question you have heard.Conversation 1Man: Can I help you with something?Woman: Yes, I'm looking for a book on how to grow tomatoes.Question: What is the woman looking for?A. A book on how to bake a cake.B. A book on how to grow tomatoes.C. A book on how to repair a car.D. A book on how to fly a plane.The correct answer is B. A book on how to grow tomatoes.Conversation 2Woman: I'm having a dinner party tomorrow night. Can you come?Man: I'm sorry, I have to work late tomorrow.Question: Why can't the man come to the dinner party?A. He has a doctor's appointment.B. He has to work late.C. He is going on vacation.D. He is sick.The correct answer is B. He has to work late.Section B: Mini-Listening Test (20 points)Directions: In this section, you will hear five conversations between two people. At the end of each conversation, a thirdvoice will ask a question. After you hear the question, read the four possible answers on your paper and decide which one would be the best answer to the question you have heard.Conversation 1Host: Welcome to our podcast! Today, we have a very special guest with us. Can you introduce yourself?Guest: Sure, my name is David and I'm a professional photographer.Host: That's great. How did you get into photography?Question: What is the guest's name?A. Peter.B. David.C. Jack.D. Tom.The correct answer is B. David.Conversation 2Teacher: Alright class, today we are going to learn about the water cycle. Who can tell me the three stages of the water cycle?Student: The three stages are evaporation, condensation, and precipitation.Question: What are the three stages of the water cycle?A. Evaporation, condensation, and rotation.B. Evaporation, condensation, and explosion.C. Evaporation, condensation, and precipitation.D. Evaporation, condensation, and freezing.The correct answer is C. Evaporation, condensation, and precipitation.Part II Reading Comprehension (40 points)Section A: Multiple Choice (20 points)Directions: Read the following passages carefully and answer the questions that follow. Choose the best answer for each question.Passage 1Being kind to others can have a positive impact on our own well-being. One study found that performing acts of kindness can significantly improve our overall mood. For example, helping a neighbor carry their groceries can lead to an increased feelingof happiness and satisfaction. Additionally, being kind to others can help create a sense of community and mutual support. In a world where people are becoming increasingly disconnected, kindness can be a powerful tool to bring people together.Question 1: According to the passage, what is a potential benefit of being kind to others?A. Improved physical health.B. Increased feeling of happiness.C. Decreased overall mood.D. Increased feeling of sadness.The correct answer is B. Increased feeling of happiness.Passage 2The importance of recycling cannot be overstated. By recycling materials such as paper, plastic, and glass, we can reduce the amount of waste that ends up in landfills. Recycling also helps to conserve natural resources and reduce pollution. In fact, it takes less energy to make products from recycled materials than from raw materials. By participating in recycling programs, we can all do our part to protect the environment for future generations.Question 2: According to the passage, what is a benefit of recycling?A. Increased waste in landfills.B. Conservation of natural resources.C. Increase in pollution.D. Increased energy usage.The correct answer is B. Conservation of natural resources.Section B: Matching (20 points)Directions: Read the passages carefully and match the people with the statements that best describe them.Passage 1John is a student at Beijing Shunyi District High School. He is passionate about science and hopes to become a doctor one day. In his free time, he enjoys playing basketball and reading books.Passage 2Sarah is a teacher at Beijing Shunyi District High School. She has been teaching English for five years and loves working with students. In her free time, she enjoys cooking and hiking.Question 3: Match the following statements to the correct people.A. JohnB. SarahC. Both1. Enjoys playing basketball and reading books.2. Teaches English and loves working with students.3. Enjoys cooking and hiking.The correct answers are:1. A. John – Enjoys playing basketball and reading books.2. B. Sarah – Teaches English and loves working with students.3. C. Both – Enjoys cooking and hiking.Part III Writing (30 points)Directions: Write an essay on the following topic. You should write at least 200 words.Topic: Describe a place you have visited recently and explain why you enjoyed your visit.Sample Essay:I recently visited the Great Wall of China, and it was an experience that I will never forget. The Great Wall is one of the most iconic landmarks in the world, and I was awestruck by its sheer size and beauty. As I walked along the ancient stone path, I couldn't help but feel a sense of wonder and reverence for the history and culture that this magnificent structure represents.One of the things that I enjoyed most about my visit to the Great Wall was the breathtaking views that it offered. From the top of the wall, I could see for miles in every direction, and the sight of the rolling hills and valleys stretched out before me was truly awe-inspiring. I also loved learning about the history of the Great Wall and the incredible feat of engineering that went into its construction.Overall, my visit to the Great Wall of China was a truly amazing experience. It gave me a greater appreciation for the rich history and culture of China, and I feel grateful to have had the opportunity to walk in the footsteps of the countless people who have traversed this ancient structure over the centuries.In conclusion, visiting the Great Wall of China was an unforgettable experience that I will always treasure. I highlyrecommend it to anyone who has the chance to visit this incredible historical site.篇22024 Beijing Shunyi District Junior High School Entrance Examination English Paper 1Listening Section (20 points)Part 1: Listen and choose the correct picture (5 points)1. Which picture shows a girl reading a book?2. Which picture shows a man playing basketball?3. Which picture shows a woman cooking in the kitchen?4. Which picture shows a boy riding a bike?5. Which picture shows a family having a picnic in the park?Part 2: Listen and match the words to the pictures (5 points)1. Apple2. Swimming3. Computer4. Sleeping5. GuitarPart 3: Listen and answer the questions (10 points)1. What did Sarah do last weekend?2. Where is Lucy going on vacation next month?3. What does Jack like to do in his free time?4. How does Mary go to school every day?5. What does Tom want to be when he grows up?Reading Section (40 points)Part 1: Vocabulary and Grammar (10 points)1. Choose the correct word to complete the sentence.2. Choose the correct tense of the verb.3. Complete the sentence with the correct preposition.4. Choose the correct form of the adjective.5. Choose the correct form of the adverb.Part 2: Reading Comprehension (30 points)1. Read the passage and answer the questions.2. Complete the passage with the correct words.3. True or False statements based on the passage.Writing Section (40 points)Part 1: Write a short paragraph (15 points)Write a paragraph about your favorite hobby and why you enjoy it. Include details about when you started this hobby, how often you do it, and any special memories you have related to it.Part 2: Write a letter (25 points)Write a letter to your friend inviting them to visit your city during the summer vacation. Include details about popular attractions, activities you can do together, and any special events happening during that time.This is the end of the English Paper 1 for the 2024 Beijing Shunyi District Junior High School Entrance Examination. Good luck!篇3Beijing Shunyi District 2024 Middle School English First Model ExamPart I Listening (20 points)Section ADirections: In this section, you will hear 10 short conversations. At the end of each conversation, a question will be asked about what was said. Both the conversation and the question will be spoken only once. After each question, there will be a pause. During the pause, you must read the four choices marked A), B), C) and D), and decide which is the best answer. Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Example:You will hear:You will read:A) At the office.B) In the waiting room.C) At the airport.D) In a restaurant.From the conversation we know that the two were talking about eating out. This is most likely happening at a restaurant. Therefore, A) "At the airport." is the best answer. You should choose [C] on Answer Sheet 1 and write it down.1. A) Summer camp.B) College application.C) Job interview.D) Birthday party.2. A) Martha is interested in writing a book.B) The man should write a note to Martha.C) Martha wants to have lunch later.D) The man wants to borrow a book from Martha.3. A) Train the new employee.B) Apply for a promotion.C) Welcome the new employee.D) Find out if Mary is available.4. A) She agrees with the man's suggestion.B) The man should transfer to another department.C) The man is mistaken about the office furniture.D) She doesn't mind if the man makes the changes.5. A) Dr. Wilson and Ms. Harper lent a football to David.B) David will come back to meet with Mrs. Johnson at five.C) Mrs. Johnson will tell Dr. Wilson and Ms. Harper to bring their money.D) Dr. Wilson and Ms. Harper will give David a football only after he pays.Section BDirections: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must read the four choices marked A), B), C) and D), and decide which is the best answer. Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Passage One6. A) It's a letter from a bank.B) It's a message from a friend.C) It's a notice from her teacher.D) It's a story about Peter Pan.7. A) On the table.B) In the garden.C) In her classroom.D) On the staircase.8. A) The woman kicked it into the river.B) The woman dropped it in the bushes.C) The woman drank water from it.D) The woman filled it with flowers.Passage TwoQuestions 9 to 11 are based on the passage you have just heard.9. A) She's preparing for a test.B) She's doing her morning exercise.C) She's sending an email to her teacher.D) She's thinking about a walk in the park.10. A) It's about a school in Mr. Spencer's hometown.B) It's about the school's inspiring students.C) It's about the school's gym being renovated.D) It's about Geoff applying to Mr. Spencer's school.11. A) Because her teacher wanted her to.B) Because she enjoys writing.C) Because she wants to share her experiences.D) Because she thinks her story is interesting.Passage ThreeQuestions 12 to 15 are based on the passage you have just heard.12. A) They were classmates in primary school.B) They met last week at a party.C) They're working on a school project together.D) They've been neighbors for five years.13. A) A famous travel writer.B) A young engineer.C) A well-known inventor.D) A leading scientist.14. A) To take part in the local plays.B) To run the country's biggest theater.C) To work in a train station.D) To develop the city's cultural events.15. A) She will write for the local theater.B) She will direct plays for people.C) She's going to produce friction.D) She's returning to her job at the theater.Part II G rammar and Vocabulary (40 points)Section ADirections: Beneath each of the following sentences, there are four choices marked A), B), C) and D). Choose the one answer that best completes the sentence. Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Example:16. _______ is the capital of the People's Republic of China.A) BeijingB) As ifC) Its beautyD) Some three thousand milesThe sentence given is grammatically complete. The sentence is simple and clear. In answer choice A) "Beijing" is the correct answer. Therefore, you should choose [A] on Answer Sheet1 and write it down.16. The students cheered loudly _______ they heard the good news.A) althoughB) whenC) unlessD) as17. I've always been interested in the way plants change with the _______ of the seasons.A) weatherB) planC) worthD) wonder18. _______ I get the job, my first task will be to hire a new assistant.A) WithoutB) ShouldC) ButD) What19. Sarah asked if I'd like to join her for coffee, so I agreed _______.A) to her invitationB) to doC) with her toD) soSection BDirections: Choose the one answer that best completes the sentence. Then mark the corresponding letter on Answer Sheet 1 with a single line through the center.20. The new computer program is expected to speed up the process, _______ saving us time and money.A) in additionB) thusC) whileD) for that21. The government has put forward a new policy in _______ to the increasing pollution in big cities.A) relationshipB) associationC) responseD) connection22. The weather forecast predicted rain, but _______ the sun came out and the day was beautiful.A) soB) insteadC) fortunatelyD) also23. It's _______ cold today that I regret not wearing my winter coat.A) suchB) soC) veryD) tooSection CDirections: In this section there are 10 sentences, each with one word or phrase underlined. Choose the one word or phrase that would be considered incorrect. Then mark the corresponding letter on Answer Sheet 1 with a single line through the center.Example:24. There are many different type/types of birds in the forest.A) ThereB) typesC) ofD) in25. The mechanic worked on the broken car yesterday and now it's running smooth/smoothly.A) onB) theC) andD) smooth26. Your current behavior is way different from how you acted before/beforehand.A) currentB) wayC) fromD) beforePart III Reading Comprehension (40 points)Section ADirections: Read the following passage and answer the questions. Then mark the corresponding letter on Answer Sheet 1 with a single line through the center.The idea of a driverless car seemed like science fiction just a few decades ago. Today, however, these vehicles are becoming a reality. Companies such as Google, Tesla, and Uber are investing millions of dollars in developing this technology, with the hope of changing the way we think about transportation.Driverless cars use different types of sensors, radars, and cameras to navigate without human input. They can detect other vehicles, pedestrians, and road signs, making decisions inreal-time. The potential benefits of driverless cars are numerous. Proponents argue that they will lead to safer roads, less traffic congestion, and reduced pollution.However, critics have expressed concerns about the safety and ethics of these vehicles. What happens if a driverless car is involved in an accident? Who is responsible when the vehicle makes a wrong decision? These are just some of the questions that need to be addressed as this technology continues to evolve.27. What is the main topic of this passage?A) The rise of driverless cars.B) The dangers of driverless cars.C) The benefits of driverless cars.D) The cost of developing driverless cars.28. How do driverless cars navigate?A) By using human input.B) Using sensors, radars, and cameras.C) By following the GPS.D) By learning the roads over time.29. What are the potential benefits of driverless cars?A) Safer roads, more traffic congestion, and less pollution.B) Fewer traffic accidents and reduced pollution.C) Faster commute times and fewer road signs.D) More investment in public transportation.Section BDirections: Read the passage and answer the questions. Then mark the corresponding letter on Answer Sheet 1 with a single line through the center.As technology continues to advance, the way we work is changing. More people are working from home, using laptopsand smartphones to stay connected with their colleagues. This shift to remote work has its advantages and disadvantages.On the one hand, working from home can lead to greater flexibility. Employees can set their own schedules and avoid long commutes to the office. This may result in increased productivity and job satisfaction. On the other hand, remote work can also lead to feelings of isolation and a lack of work-life balance.Employers need to find a balance between allowing their employees the freedom to work remotely while ensuring that they remain engaged and connected. Communication is key in remote work situations, as it helps to build trust and maintain relationships between team members.30. What is changing due to technological advancements?A) The way people communicate.B) The way people work.C) The way people socialize.D) The way people travel.31. What are some advantages of working from home?A) Increased productivity and job satisfaction.B) Greater social interaction.C) Longer commutes and less flexibility.D) More time spent in the office.32. What is important for employers to do in remote work situations?A) Provide more distractions for employees.B) Offer limited flexibility.C) Encourage isolation.D) Maintain communication and trust.Part IV Writing (20 points)Directions: For this part, you are allowed 30 minutes to write a composition on the topic "My Dream School". You should write at least 100 words following the outline given below in Chinese:梦想中的学校该是什么样子的?在梦想中,你的学校是一个什么样的地方?学校有哪些设施?老师和学生如何相处?你有什么想法或建议来完善现在的学校?Please write your composition on Answer Sheet 2.End of the Exam.以上为北京市顺义区2024年中考英语一模试卷,祝您考试顺利!。

2020届中考复习北京市顺义区中考第一次(5月)模拟英语试题有配套答案

2020届中考复习北京市顺义区中考第一次(5月)模拟英语试题有配套答案

2020届中考复习北京市顺义区中考第⼀次(5⽉)模拟英语试题有配套答案顺义区初三第⼀次统⼀模拟练习英语笔试试卷知识运⽤(共14分)⼀、单项填空(共6分,每⼩题0.5分)从下⾯各题所给的A、B、C、D四个选项中,选择可以填⼊空⽩处的最佳选项。

1.Tomorrow is my mother’s birthday and I’d like to buy ____ some flowers.A. themB. herC. usD. him2.The meeting will begin ________ 4:30 this afternoon. Don’t forget it.A. onB. inC. atD. for3.I’d like to go with you, I’m too busy.A.or B.and C.so D.but4.— ______ is it from your home to the school?— About ten minutes’ walk.A. How farB. How longC. How oftenD. How soon5.— Which do you like ______, tea or coffee?— A cup of tea, please.A. goodB. betterC. bestD. the best6.— Mum, may I go out to play basketball for a while?— No, you _________. The air outside is too dirty to do sports. A.can’t B. shouldn’t C. wouldn’t D. needn’t7.My grandpa ___________ a walk after supper every day.A. takesB. tookC. will takeD. has taken 8.–– Where is Mary, Mum?–– She ____ to music in her room.A. listenB. listensC. is listeningD. has listened 9.— What did you do after school yesterday?— I ____ football with my friends.A. playB. playedC. will playD. am playing10.— This school has a long history.— Yes, it _____ more than sixty years ago.A. was builtB. builtC. is builtD. builds11.We _______ in the same school since three years ago.A. studyB. will studyC. were studyingD. have studied 12.— Could you please tell me______ now, Tom?— Yes. I live in Beijing.A. where do you liveB. where did you liveC. where you liveD. where you lived⼆、完形填空(共8分,每⼩题1分)阅读下⾯的短⽂,掌握其⼤意,然后从短⽂后各题所给的A、B、C、D四个选项中,选择最佳选项。

顺义区2020届初三一模试卷(含答案)

顺义区2020届初三一模试卷(含答案)

顺义区2020届初三第一次统一练习一、选择题(本题共16分,每小题2分)第1-8题均有四个选项,符合题意的选项只有..一个.1.港珠澳大桥被英国《卫报》誉为“新世界七大奇迹”之一,它是世界总体跨度最长的跨海大桥,全长55000米.数字55000用科学记数法表示为(A)45.510⨯(B)45510⨯(C)55.510⨯(D)60.5510⨯2.下列有关医疗和倡导卫生的图标中,是轴对称图形的是(A)(B)(C)(D)3.将一副三角板和一个直尺按如图所示的位置摆放,则1∠的度数为(A)60︒(B)65︒(C)75︒(D)85︒4.在数轴上,点A表示数a,将点A向右平移4个单位长度得到点B,点B表示数b.若a b=,则a的值为(A)3-(B)2-(C)1-(D)15.箱子内装有除颜色外均相同的28个白球及2个红球,小芬打算从箱子内摸球,以毎次摸到一球后记下颜色将球再放回的方式摸28次球.若箱子内每个球被摸到的机会相等,且前27次中摸到白球26次及红球1次,则第28次摸球时,小芬摸到红球的概率是(A)12(B)114(C)115(D)127 6.已知直线l及直线l外一点P.如图,(1)在直线l上取一点A,连接PA;(2)作PA的垂直平分线MN,分别交直线l,PA于点B,O;NMBQOA lP1(3)以O 为圆心,OB 长为半径画弧,交直线MN 于另一点Q ; (4)作直线PQ .根据以上作图过程及所作图形,下列结论中错误的是 (A )△OPQ ≌△OAB (B )PQ ∥AB(C )12AP BQ =(D )若PQ=PA ,则60APQ ∠=︒7.用三个不等式a b >,c d >,a c b d +>+中的两个不等式作为题设,余下的一个不等式作为结论组成一个命题,组成真命题的个数为(A )0 (B )1 (C )2 (D )38.小明、小聪参加了100m 跑的5期集训,每期集训结束时进行测试,根据他们的集训时间、测试成绩绘制成如下两个统计图.图1 图2 根据图中信息,有下面四个推断: ①这5期的集训共有56天;②小明5次测试的平均成绩是11.68秒;③从集训时间看,集训时间不是越多越好,集训时间过长,可能造成劳累,导致成绩下滑; ④从测试成绩看,两人的最好成绩都是在第4期出现,建议集训时间定为14天. 所有合理推断的序号是(A )①③ (B )②④(C )②③ (D )①④二、填空题(本题共16分,每小题2分)926x -x 的取值范围是 .10.如图,在量角器的圆心O 处下挂一铅锤,制作了一个简易测倾仪,从量角器的点A 处观测,当量角器的0刻度线AB 对准旗杆顶端时,铅垂线对应的度数是50°,则此时观测旗杆顶端的仰角度数是________________.10题图 11题图11.在如图所示的几何体中,主视图、左视图和俯视图完全相同的几何体是 .(写出所有正确答案的序号)12.化简分式22231x y x y x y x y ⎛⎫--÷ ⎪+--⎝⎭的结果为 . 13.如图,将一矩形纸片ABCD 沿着虚线EF 剪成两个全等..的四边形纸片.根据图中标示的长度与角度,求出剪得的四边形纸片中较短的边AE 的长是 .14.已知点(2,3)A -关于x 轴的对称点A '在反比例函数ky x=的图象上,则实数k 的值为 .①从扇形图中分析出最受学生欢迎的种类 ②去图书馆收集学生借阅图书的记录 ③绘制扇形图来表示各个种类所占的百分比 ④整理借阅图书记录并绘制频数分布表 正确统计步骤的顺序是 .16.如图,在正方形ABCD 中,4AB =,E 、F 是对角线AC 上的两个动点,且2EF =,P 是正方形四边上的任意一点.若PEF ∆是等边三角形,符合条件的P 点共有 个,此时AE 的长为 .三、解答题(本题共68分,第17-21题,每小题5分,第22-23题6分,第24题5分,第25-26题,每小题6分,第27-28题,每小题7分) 解答应写出文字说明、演算步骤或证明过程. 17.计算:()15tan 30203--+︒--.18.解方程组:2313x y x y +=⎧⎨-=⎩19.已知:关于x 的方程()2220xm x m +--=.(1)求证:方程总有实数根;(2)若方程有一根小于2,求m 的取值范围.20.如图,AM ∥BC ,且AC 平分∠BAM .(1)用尺规作∠ABC 的平分线BD 交AM 于点D ,连接CD .(只保留作图痕迹,不写作法)(2)求证:四边形ABCD 是菱形.21.小宜跟几位同学在某快餐厅吃饭,如图为此快餐厅的菜单.若他们所点的餐食总共为10份盖饭,x 杯饮料,y 份凉拌菜.(1)他们点了份套餐, 份套餐, 份; (2)若x =6,且A 、B 、C 套餐均至少点了1份,则最多有 种点餐方案.22.如图,在□ABCD 中,∠B =45°,点C 恰好在以AB 为直径的⊙O 上.(1)求证:CD 是⊙O 的切线; (2)连接BD ,若AB =8,求BD 的长.23.2019年11月,胡润研究院携手知识产权与科创云平台汇桔,联合发布《IP 助燃AI新纪元—2019中国人工智能产业知识产权发展白皮书》,白皮书公布了2019中国人工智能企业知识产权竞争力百强榜,对500余家中国人工智能主流企业进行定量评估(满分100分),前三名分别为:华为、腾讯、百度.对得分由高到低的前41家企业的有关数据进行收集、整理、描述和分析.下面给出了部分信息:a .得分的频数分布直方图(数据分成8组:60≤x <65,65≤x <70,70≤x <75, 75≤x <80,80≤x <85,85≤x <90,90≤x <95,95≤x ≤100,);MCBADb.知识产权竞争力得分在70≤x <75这一组的是: 70.3 71.6 72.1 72.5 74.1c .41家企业注册所在城市分布图(不完整)如下:(结果保留一位小数)北京53.7% 深圳7家 上海m 家杭州2家 广州2家 苏州1家 合肥1家 南京1家d .汉王科技股份有限公司的知识产权竞争力得分是70.3 .(以上数据来源于《IP 助燃AI 新纪元—2019中国人工智能产业知识产权发展白皮书》) 根据以上信息,回答下列问题:(1)汉王科技股份有限公司的知识产权竞争力得分排名是第 ;(2)百度在人工智能领域取得诸多成果,尤其在智能家居、自动驾驶与服务于企业的智能云领域,百度都已进行前瞻布局,请你估计百度在本次排行榜中的得分大概是; (3)在41家企业注册所在城市分布图中,m = ,请用阴影标出代表上海的区域; (4)下列推断合理的是.(只填序号)①前41家企业的知识产权竞争力得分的中位数应在65≤x <70这一组中,众数在 65≤x <70这一组的可能性最大;②前41家企业分布于我国8个城市. 人工智能产业的发展聚集于经济、科技、教育相对发达的城市,一线城市中,北京的优势尤其突出,贡献榜单过半的企业,充分体现北京在人工智能领域的产业集群优势.24.如图,D 是直径AB 上一定点,E ,F 分别是AD ,BD 的中点, P 是»AB 上一动点,连接PA ,BAPE,PF.已知AB=6cm,设A,P两点间的距离为x cm,P,E两点间的距离为y1cm,P,F两点间的距离为y2cm.小腾根据学习函数的经验,分别对函数y1,y2随自变量x的变化而变化的规律进行了探究.下面是小腾的探究过程,请补充完整:(2)在同一平面直角坐标系xOy中,描出补全后的表中各组数值所对应的点(x,y1),(x,y2),并画出函数y1,y2的图象;(3)结合函数图象,解决问题:当△PEF为等腰三角形时,AP的长度约为cm.25. 已知:在平面直角坐标系xOy中,函数n=(n≠0,x>0) 的图象过点A(3,2),与yx=+交于点C,直线l与y轴交于点B(0,-1).直线l:y kx b(1)求n 、b 的值;(2)横、纵坐标都是整数的点叫做整点.记函数ny x(n ≠ 0,x>0) 的图象在点A ,C 之间的部分与线段BA ,BC 围成的区域(不含边界)为W .①当直线l 过点(2,0)时,直接写出区域W 内的整点个数,并写出区域W 内的整点的坐标;②若区域W 内的整点不少于...5.个,结合函数图象,求k 的取值范围.26.在平面直角坐标系x O y 中,二次函数y =ax 2+bx +c 的图象经过点A (0,-4)和B (-2,2).(1)求c 的值,并用含a 的式子表示b ;(2)当-2<x <0时,若二次函数满足y 随x 的增大而减小,求a 的取值范围;(3)直线AB 上有一点C (m ,5),将点C 向右平移4个单位长度,得到点D ,若抛物线与线段CD 只有一个公共点,求a 的取值范围.27.已知,如图,△ABC 是等边三角形.(1)如图1,将线段AC 绕点A 逆时针旋转90°,得到AD ,连接BD ,∠BAC 的平分线交BD 于点E ,连接CE . ①求∠AED 的度数;②用等式表示线段AE 、CE 、BD 之间的数量关系(直接写出结果).(2)如图2,将线段AC 绕点A 顺时针旋转90°,得到AD ,连接BD ,∠BAC 的平分线交DB 的延长线于点E ,连接CE . ①依题意补全图2;②用等式表示线段AE 、CE 、BD 之间的数量关系,并证明.图2图1ABCEDCBA28.已知:点P 为图形M 上任意一点,点Q 为图形N 上任意一点,若点P 与点Q 之间的距离PQ始终满足PQ >0,则称图形M 与图形N 相离.(1)已知点A (1,2)、B (0,-5)、C (2,-1)、D (3,4).①与直线y =3x -5相离的点是 ;②若直线y =3x +b 与△ABC 相离,求b 的取值范围; (2)设直线33+=x y 、直线33+-=x y 及直线y =-2围成的图形为W ,⊙T 的半径为1,圆心T 的坐标为(t ,0),直接写出⊙T 与图形W 相离的t 的取值范围.顺义区2020届初三数学第一次统一练习参考答案9.x≥3;10.40°;11.①③;12.1;13.3;14.6;15.②④③①;16.4,1或1.三、解答题(共12道小题,共68分)17.解:原式-……………………………………4分= …………………………………………………………5分18.解一:233x yx y+=⎧⎨-=⎩②×3得3x-1分①+③得510x=………………………………………2分∴2x=.……………………………………………………3分把2x=代入②得1y=-………………………………………4分∴原方程组的解是21xy=⎧⎨=-⎩……………………………………5分解二:由②得:3x y=+③………………………………………1分把③代入①得2(3)31y y++=……………………………2分解得1y=-……………………………………………3分把1y=-代入②得2x=…………………………………4分∴原方程组的解是21xy=⎧⎨=-⎩……………………………………5分19.解:(1)证明:()22224(2)41244(2)b ac m m m m m-=--⨯⋅-=++=+,…1分∵2(2)0m+≥,∴方程总有实数根.……………………………………………………2分(2)解:∵2(2)2m mx-±+==,∴12222m mx-++==,2222m mx m---==-.………4分∵方程有一根小于2,∴-m<2.∴m>-2.…………………………………………………………5分20.解:(1)作图如图1所示.…………1分(2)证明:∵AC平分∠BAM,∴∠1=∠2.……………2分MB∵AM ∥BC , ∴∠2=∠3. ∴∠1=∠3.∴AB =BC .……………… 3分 同理可证:AB =AD . ∴AD =BC . 又∵AD ∥BC ,∴四边形ABCD 是平行四边形.……………………………… 4分∵AB =BC ,∴□ABCD 是菱形.…………………………………………… 5分 21.解:(1)他们点了(10-y )份A 套餐,(10-x )份B 套餐,(x+y -10)份C 套餐(均用含x 或y 的代数式表示);…………………………3分(2)若x =6,且A 、B 、C 套餐均至少点了1份,则最多有 5种点餐方案. …………………………………………………………………………5分22.(1)证明:连接OC ,∵OB=OC ,∠B=45°, ∴∠BCO =∠B=45°.∴∠BOC =90°.…………………… 1分 ∵四边形ABCD 是平行四边形, ∴AB ∥DC .∴∠OCD=∠BOC =90°.…………2分 ∵OC 是,∴CD 是⊙O 的切线.……………… 3分(2)解:连接AC ,交BD 于点E .∵AB 是直径,AB =8, ∴∠ACB =90°.∴BC AC ==.…………4分 ∵四边形ABCD 是平行四边形,∴12CE AC ==∴BE ===.………………………………5分∴2BD BE ==6分23.解:(1)汉王科技股份有限公司的知识产权竞争力得分排名是第16;…… 1分(在90≤x <95范围内都对) 2分(3)在41家企业注册所在城市分布图中,m = 5 ,…………………… 3分在下图中用阴影标出代表上海的区域:D上海………………4分(4)推断合理的是①②.…………………………………………………6分24.解:(1)表中的所填数值是1.9;……………………………………………1分(2)…………………………2分(3)结合函数图象,解决问题:当△PEF为等腰三角形时,AP的长度约为 3.5,3.8,4.6 cm.………………………………………………………………………………5分25.解:(1)∵点A(3,2)在函数n=的图象上,yx∴n=6.………………………………………………………………1分=+上,∵点B(0,-1)在直线l:y kx b∴b=-1.………………………………………………………………2分(2)①区域W内的整点个数为 1 ,……………………………………3分区域W内的整点的坐标为(3,1);……………………………4分②(ⅰ)当直线l在BA下方时,若直线l与x轴交于点(3,0),结合图象,区域W内有4个整点,此时:3k-1=0,∴1k=.3当直线l与x轴的交点在(3,0)右侧时,区域W内整点个数不少于5个,.∴0<k<13(ⅱ)当直线l在BA上方时,若直线l过点(1,4),结合图象,区域W内有4 个整点,此时k-1= 4,解得k= 5.结合图象,可得k> 5时,区域W内整点个数不少于5个,图1综上,k 的取值范围是0<k <13或k > 5.…………………………………6分 26.解:(1)把点A (0,-4)和B (-2,2)分别代入y =ax 2+bx +c 中,得c =-4,…………………………………………………………………1分4a -2b +c =2.∴b=2a -3.……………………………………………………………2分(2)当a <0时,依题意抛物线的对称轴需满足232a a --≤-2. 解得32-≤a<0. 当a >0时,依题意抛物线的对称轴需满足232a a --≥0. 解得 0< a ≤32. ∴a (3)可求直线AB ∴C (-3,5) ①当a >0 (如图1)的下方.∴a +2a -3-4<5解得a <4. ∴0<a <4.②当a <0∴244ac ba -=解得3a =-+综上,a27.(1)解:①∵△ABC ∴AB=AC ,∠∵AE 平分∠∴∠BAE =12∠由旋转可知:∴AB=AD ,∠∴∠ABD =∠D ∴∠AED =∠ABD +∠BAE =45°.……………………………………2分654321FCBA 图3E D②用等式表示线段AE 、CE 、BD之间的数量关系为2BD CE =+. ………………………………………………………………………3分 (2)解:①依题意补全图2.……………………………………………………4分②用等式表示线段AE 、CE 、BD之间的数量关系为2BD CE =-.………………………………………………………………………5分 证明:过点A 作AF ⊥AE ,交ED 的延长线于点F (如图3).∵△ABC 是等边三角形, ∴AB=AC ,∠BAC =60°. ∵AE 平分∠BAC ,∴∠1=12∠BAC = 30°.由旋转可知:AD=AC ,∠CAD =90°. ∴AB=AD ,∠2=∠CAD -∠BAC =30°. ∴∠3=∠4=75°. ∴∠5=∠4-∠1=45°. ∵AF ⊥AE , ∴∠F =45°=∠5. ∴AF=AE . ∴AE .∵∠6=∠EAF -∠1-∠2=30°, ∴∠6=∠1=30°.又∵∠F =∠5=45°,AD=AB , ∴△ADF ≌△ABE . ∴DF=BE .∵AB=AC ,AE 平分∠BAC , ∴AE 垂直平分BC . ∴CE=BE . ∵BD =EF -DF -BE ,DE 图2ABC∴BD AE-2CE.……………………………………………7分28.解:(1)①与直线y=3x-5相离的点是A、C;……………………………2分②当直线y=3x+b过点A(1,2)时,3+ b=2.∴b=-1.当直线y=3x+b过点C(2,-1)时,6+ b=-1.∴b=-7.∴b的取值范围是b>-1或b<-7.……………………………………4分(2)t的取值范围是:t<或t或t. ……………………7分。

北京市顺义区2020年中考英语一模试题含答案

北京市顺义区2020年中考英语一模试题含答案

一年度九年级第一次模拟练习英语试卷(.4)1.本试卷共12页,满分120分,考试时间120分钟。

2.在试卷和答题卡上准确填写学校名称、姓名和准考证号。

3.试题答案一律填涂或书写在答题卡上,在试卷上作答无效。

4.在答题卡上,选择题用2B铅笔作答,其他试题用黑色字迹签字笔作答。

5.考试结束,请将本试卷和答题卡一并交回。

听力理解(共30分)、听对话,从下面各题所给的A、B、C三幅图片中选择与对话内容相符的图片。

每段对话你将听两遍。

(共5分,每小题1分)4.A.5.A.二、听对话或独白,根据对话或独白的内容,从下面各题所给A、B、C三个选项中选择最佳选项。

每段对话或独白你将听两遍。

(共15分,每小题1.5分)请听一段对话,完成第6至第7小题。

6.What size T-shirt does the man want to buy?A. Size L.B. Size M.C. Size S.7.How much is the T-shirt?A. $48.B. $50.C. $46.请听一段对话,完成第8至第9小题。

8.Who worked in the office all day?A. Kate.B. Ann.C. John.9.Where did Kate go before dinner on Sunday?A . A nice lake. B. John' s home C. An outdoor concert.请听一段对话,完成第10至第11小题。

10.How does the girl go to her school?A . By bike. B. On foot. C. By bus.11.Where does the girl eat lunch at school?A . In the lunchroom. B. In the classroom. C. In the cafe.请听一段对话,完成第12至第13小题。

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顺义区2020届初三第一次统一练习英语试卷学校________________ 姓名________________ 准考证号________________知识运用(共14分)一、单项填空(共6分,每小题0.5分)从下面各题所给的A、B、C、D四个选项中,选择可以填入空白处的最佳选项。

1. My mother is a nurse, __________ is very kind.A. HeB. SheC. TheyD. It2. David is going to buy a T-shirt for his father__________ Father’s Day.A. atB. inC. onD. for3. ----__________ do your parents usually go to work, Jack?----By bus.A. WhenB. WhereC. WhyD. How4. ----Peter, would you like to go shopping with me?----I’d like to, __________ I have to finish my homework first.A. orB. andC. soD. but5. ----Dad, _________ you make a kite for me?----Of course I can.A. canB. mustC. shouldD. need6. ----Which season do you like__________, spring or autumn?----Spring.A. wellB. betterC. bestD. the best7. ----What do you usually do on weekends?----- I usually__________ my grandparents.A. visitB. visitedC. will visitD. am visiting8. ----Where is Lily, Mum?----She__________ the flowers in the garden.A. waterB. watersC. is wateringD. has watered9. We__________ online classes on February 17 because of COVID-19.A. hadB. haveC. will haveD. are having10. ----Do you know Mr. Smith?----Yes. I __________ him since 2017.A. knowB. knewC. have knownD. will know11. The environment in my hometown is improving because many trees__________ every year.A. plantB. are plantedC. plantedD. were planted12. ----Excuse me, could you tell me__________.----Sure. Go down the street, and you can find it at the second crossing.A. where is the supermarketB. where was the supermarketC. where the supermarket isD. where the supermarket was二、完形填空(共8分,每小题1分)阅读下面的短文,掌握其大意,然后从短文后各题所给的A、B、C、D四个选项中,选择最佳选项。

Changing Makes You More ConfidentI used to hate being called upon in class mainly beca use I didn’t like a ttention drawn to myself. And unless otherwise assigned (指定) a seat by the teacher, I always __13__ to sit at the back of the classroom.All this changed after I joined a sports team. It began when a teacher suggested I try out for the basketball team. At first I thought it was a__14__ idea because I didn’t have a good sense of balance, nor did I have the__15__ to keep pace with the others on the team and they would laugh at me. But for the teacher who kept insisting on my “going for it”, I wouldn’t have dec ided to give it a try.When I first started __16__ the practice ses sions, I didn’t even know the rules of the game, much less what I was doing. Sometimes I’d get confused and take a shot at the wrong__17__---- which made me feel really stupid. Fortunately, I wasn’t the only one “new” at the game, so I decided to focus on learning the game, do my best at each practice se ssion, and not be too hard on myself for the things I didn’t know“just yet”.I practiced and practiced. Soon I knew the __18__ and the “moves”. Being part of a team was fun and motivating (激励,动力). With time, I learned how to play and made friends in the process-- friends who respected my efforts to work hard and be a team player. 1 never had so much fun!With my improved self-confidence comes more__19__ from teachers and classmates. I have gone from “__20__” in the back of the c lassroom and not wantingto call attention to myself, to raising my hand----even when I sometimes wasn’t 100 percent sure. I had the right answer. Now I have more self-confidence in myself.13. A. hoped B. agreed C. meant D. chose14. A. good B. crazy C. common D. bright15. A. ability B. night C. chance D. patience16. A. enjoying B. preparing C. attending D. watching17. A. direction B. decision C. competition D. discussion18. A. steps B. rules C. orders D. games19. A. praise B. advice C. comfort D. courage20. A. dreaming B. talking C. fighting D. hiding阅读理解(共36分)三、阅读下列短文,根据短文内容,从短文后各题所给的A、B、C、D四个选项中,选择最佳选项。

(共26分,每小题2分)ABest Ways to Improve Online Experience21. Who does preview work for the next day a night?A. Zhao Yuchen.B. Qiu Ziyin.C. Zhao Jiawen.D. Zhang Penghui.22. Zhao Yuchen__________ while having class online.A. has asked other family members not to use the internetB. watches several video from teachersC. likes to have snacks and drinksD. plays with the mobile phone23. Zhang Penghui thinks that__________.A. students’ self discipline is weakB. it’s good for students to get different teachers from ChinaC. a quiet room and clean desk can help students stay focusedD. the biggest problem about studying online is the poor internet connectionBLove on the Phone LineMost of us want to know what we mean to those who mean everything to us, but how do we kno w if we don’t tell each other? I wan t to share an experience of mine to tell you when you really love someone, tell them directly.When I was growing up, I never heard the words“I love you” from my father. If your father never says them to you when you are a child, it gets more and more difficult for him to say those words as you get alder. In fact, I never said those words to him, either.A few years ago, I decided to make the first move. After some thought, I called my father on the phone and said: "Dad, 1 love you!" There was a moment of silence at the other end of the line. “Well, same back at you!" he replied quietly.“Dad, I know you love me. When you’re ready, you’ll say it, too,” I s aid with a smile. Then I hang up the phone. But fifteen minutes later, my mother called and asked if everything was“OK”,She seemed nervous. “Your father seems to have something to say after answe ring your call”. 1 didn’t tell my mother abou t the call. Ijust told her it was a secret between us.A few weeks later, Dad called and ended our phone conversation with the words: “Son, I love you,” I was at work during this conversation and tears came to my eyes as I finally “hea r d” the love. This special moment took our father-son relationship to a new level. Later, we got used to saying “I love you” to each other.I think if I had not taken the first step, I would have never heard the love from my father.24. What did the writer do when he decided to show love to his father?A. He spoke out his love to his father on the phone.B. He told her mother about his love to his father.C. He bought some flowers to show love.D. He made a love card for his father.25. How did the writer’s mother feel when she called him?A. HappyB. Exited.C. Nervous.D. Confident.26. According to the passage, the writer wants to tell us that it’s necessary_________.A. to speak out our loveB. to call our parentsC. to go home oftenD. to keep love secretCWe take showers and use the toilet every day to get rid of badly waste. Our brains also need to take a hath every day. How can they do it?A 2013 study found the answer. Researchers at the LS University of Rochester studied the brains of mice and discovered that they cleaned themselves while the mice slept. A kind of fluid in the brain, called cerebral spinal fluid (CSF,脑脊液), was found to increase dramatically (显著地) during sleep, washing away waste proteins that had been building up between brain cells in waking hours.“This study shows that the brain has different functional stales when asleep and when awake," Maiken Nedergaard, the lead researcher, told NBC News. It also explains why we can’t seem to think clearly a fter a sleepless night while a good night’s sleep leaves us feeling sharp and refreshed.Now a new study, published on Oct 31 in Science, digs a little deeper into our brains’ self-cleaning procedure. Instead of mice, this time humans were the testsubjects.Researchers at Boston University, US, monitored (监测) the brain waves of 13 healthy adults who were sleeping, using accelerated MRI, which is capable of recording faster changes inside the brain than a regular MRI machine. They found that every 20 seconds, blood flowed out of the brain, making room for a large amount of CSF to come in and “clean”. This cycle coincided with (与……一致)) the rhythm of the brain’s sl ow waves—an electrical activity that happen s when we’re in de ep sleep.It’s s till unknown how these brain activities are connected. But the mere fact that they are connected is exciting enough, since it allows researchers to piece together (拼凑出) possible new explanations for misunderstood diseases.For example, slow-wave sleep has been proven to play a role in strengthening our memories. This may explain why pe ople with Alzheimer’s often have fewer and weaker slow brainwaves. Based on this new study, there could be one more explanation for diseased brains: They are not clean.Nedergaard, leader of the 2013 study, is also excited about the new findings.“Maybe the most important take-home message is that sleep is a serious thing, “she told Scientific American. “You really need to sle ep to keep a healthy brain because it links electrical activity to a practical ‘housekeeping’ fun c tion.”27. When the researchers studied the brains of mice, they found__________.A. CSF in their brains went down when the mice sleptB. CSF carried away waste proteins in their brain during sleepC. more waste proteins were produced in their brains when asleepD. the more CSF was in their brains, the fewer waste proteins were28. What did the researchers discover when they monitored human brain waves?A. The rhythm of the brain was slower than that of CSFB. The brains worked more slowly when asleep.C. Brains were cleaned when blood flowed out.D. It took 20 seconds for CSF to clean brains,29. Which of the following would be the best title for the passage?A. Connecting Brain ActivitiesB. Cleaning in Your DreamsC Having a Good SleepD. Explaining DiseasesDEach country has its own secret to happiness. If“pyt”,which means“don’t worry about it and stuff happens” , explains the relaxed attitude of Danish people,“niksen”will reveal how Dutch people combat (对抗) stress and burnout in a fast-paced lifestyle.The term “niksen” origins from the Dutch word “niks”, which refers to“nothing”. Mindfulness, another welcome subject to help people have a peaceful mind. But unlike mindfulness, niksen is not about concentrating on the present moment. It’s about letting yourself do nothing, and allowing your mind to run free without expectation. In practice, this means “hanging a round, looking at your surroundings, or listening to music as long as it’s without purpose,” according to Time Magazine.Niksen sounds contrary (矛盾的) to the advice we were all given as kids. Nowadays, we’re constan tly told to stay busy and work harder than everyone else. But niksen opposes (反对) that mentality. It offers the chance to “deliciously do nothing”, as Carolien Hamming, a coach at CSR Centrum, an organization devoted to fighting stress and burnout in the Netherlands, told Time. She thinks that niksen is essential (重要的) to staying healthy, since it’s a form of mental relaxation and healing. Just as a wild animal lies in wait for their prey,niksen seems to be a natural state of being.For some people, niksen can mean more than just stress reduction (减压). It’s also a way to imagine new ideas or plans. As an early adopter of niksen, Jenny Holden, a communications expert in the UK, adds it to her daily lunch breaks. “Within 10 minutes of doing nothing--just staring and listening to myself --my head began to clear and sort out my work and home to-do lists," she told the MetroUK.Above all, niksen is a suggestion for balancing work and rest. As Dutch-born writer Ogla Mecking wrote in US-based Whooly Magazine,niksen is the “thorough enjoyment of life’s pauses”.Everyone is encouraged to embrace your niksen moments. They revitalize (使恢复元气) you and give you the strength needed to face everyday challenges.30. What does niksen mean?A. Living in the moment.B. Leading a healthy lifestyleC. Using your wildest imagination.D. Being free and doing nothing31. The writer mentions Jenny Holden in Paragraph 4 to show _________.A. how niksen improves on e’s mental heathB. niksen is closely related to stress reductionC. niksen can help people come up with new thoughtD. niksen can offer the chance to do something more important32. The word “thorough” in Paragraph 5 probably means “_________”.A. longB. fullC. fastD. quiet33. What is the passage mainly about?A. An introduction to the Duteh lifestyle.B. Suggestions on how to balance work and restC. The importance of allowing time to pause life.D. An explanation of some Danish words about life attitudes.四、阅读短文,根据短文内容回答问题。

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