大学英语四级模拟试卷1-3(无快速阅读和听力)

四级模拟考试题库及答案一、听力部分1. A) The man is going to the cinema.B) The woman is going to the cinema.C) Both are going to the cinema.D) Neither is going to the cinema.答案：C2. A) The woman is a teacher.B) The man is a teacher.C) The woman is a student.D) The man is a student.答案：A3. A) The woman is satisfied with the meal.B) The man is satisfied with the meal.C) Both are satisfied with the meal.D) Neither is satisfied with the meal.答案：D二、阅读部分1. What is the main idea of the passage?A) The importance of sleep.B) The effects of sleep deprivation.C) The benefits of taking a nap.D) The relationship between sleep and health.答案：B2. According to the passage, which of the following is NOT a symptom of sleep deprivation?A) Difficulty in concentrating.B) Increased appetite.C) Irritability.D) Enhanced creativity.答案：D3. What does the author suggest to improve sleep quality?A) Exercising regularly.B) Drinking coffee before bedtime.C) Watching TV in bed.D) Taking a hot bath before sleep.答案：A三、写作部分1. Directions: Write an essay on the topic of "The Role of Technology in Education". You should write at least 120 words but no more than 180 words.答案：略2. Directions: Write an essay on the topic of "The Impact of Social Media on Communication". You should write at least 120 words but no more than 180 words.答案：略四、翻译部分1. 随着科技的发展，人们的生活方式发生了巨大的变化。

大学英语模拟真题Test 2第一部分：交际用语（共5小题；每小题3分，满分15分）此部分共有5个未完成的对话，针对每个对话中未完成的部分有4个选项，请从A、B、C、D四个选项中选出可以填入空白处的最佳选项。

1. —Why not go and have dinner in the restaurant?—_________ It’s too expensive.A. Why not.B. I agree .C. I’m afraid not.D. I’m sure.2. —Mike,I am going to skate in the mountains tomorrow.—Oh,really? _________A. Good luck.B. Great.C. Have a good time.D. Congratulations!3. —Please help yourself to the fish.—_________A. Thanks,but I don’t like the fish.B. Sorr y,I can’t help.C. Well,fish don’t suit me.D. No,I can’t.4. —_________—He teaches physics in a school.A. What does your father want to do?B. Who is your father?C. What is your father?D. Where is your father now?5. —Excuse me, how much is the jacket?—It’s 499 Yuan. _________A. Oh, no. Tha t’s OK!B. How do you like it?C. Which do you prefer?D. Would you like to try it on?第二部分：阅读理解（共10小题；每小题3分，满分30分）此部分共有2篇短文，在第一篇短文后有5个正误判断题，从每题后的两个选项中选出正确答案；在第二篇短文后有5个问题。

英语四级考试题模拟及答案英语四级考试是许多大学生必须通过的一项考试，它是考察英语能力的重要指标之一。

为了帮助考生更好地备考，以下是一份英语四级考试题目模拟及答案，供参考学习。

一、听力部分1. What does the woman advise the man to do?A. Change his major.B. Study harder.C. Take fewer courses.D. Drop the course.2. What does the woman think of their food?A. Delicious.B. Too salty.C. Overpriced.D. Terrible.3. Where is the man planning to go?A. To the library.B. To the bookstore.C. To the office.D. To the cafeteria.答案：1. B. Study harder.2. A. Delicious.3. B. To the bookstore.二、阅读部分Questions 4 to 6 are based on the following passage:Most experts agree countries need to start seriously slashing greenhouse gas emissions.. and that we can continue emitting greenhouse gases for only another 10 to 15 years before crossing a threshold into a more extreme climate.4. What do most experts agree on?A. Greenhouse gas emissions need to be increased.B. Greenhouse gas emissions need to be seriously reduced.C. Greenhouse gas emissions have no impact on the climate.D. Greenhouse gas emissions can continue as they are.5. How many years do most experts believe we have before crossing a threshold into a more extreme climate?A. 5 to 10 years.B. 10 to 15 years.C. 15 to 20 years.D. 20 to 25 years.6. What is the main idea of the passage?A. Countries should ignore greenhouse gas emissions.B. Countries have plenty of time to reduce greenhouse gas emissions.C. Countries must act now to reduce greenhouse gas emissions.D. Countries will not be affected by greenhouse gas emissions.答案：4. B. Greenhouse gas emissions need to be seriously reduced.5. B. 10 to 15 years.6. C. Countries must act now to reduce greenhouse gas emissions.三、写作部分请根据以下题目写一篇短文：题目：Does social media have a positive or negative impact on society?参考范文：Social media has become an indispensable part of our lives, with millions of people using platforms such as Facebook, Twitter, and Instagram on a daily basis. While social media has its benefits, such as connecting people from all around the world and providing a platform for sharing information and ideas, it also has negative impacts on society.One of the positive aspects of social media is its ability to bring people together. It allows individuals to stay in touch with friends and family, no matter where they are located. Social media also provides a platform for sharing news and information quickly and easily, which can be beneficial in emergency situations.However, social media also has negative impacts on society. One of the biggest concerns is the spread of fake news and misinformation. With the rise of social media, it has become increasingly difficult to distinguish between reliable sources and fake news. This can lead to a misinformed public and have serious consequences for society.Furthermore, social media can have a negative impact on mental health. Studies have shown that excessive use of social media can lead to feelings of loneliness, anxiety, and depression. The constant comparison to others on social media can also lead to low self-esteem and self-worth.In conclusion, while social media has its benefits, such as connecting people and sharing information, it also has negative impacts on society, such as the spread of fake news and negative effects on mental health. It is important for individuals to use social media responsibly and critically evaluate the information they see online.以上是一份英语四级考试题目模拟及答案，希望对大家备考有所帮助。

大学英语四级考试模拟题一Part Ⅰ Writing （30 minutes）Directions：For this part, you are allowed 30 minutes to write a short essay on the topic: ONE –OFF CHOPSTICKS. You should write at least 120 words following the outline given below in Chinese：1. 你和你的朋友在餐厅就餐，你的朋友对餐厅提供的非一次性筷子不满。

2. 餐厅的负责人解释说这是为了节约资源，并保证这些餐具已经严格消毒；3. 你对此事的看法和采取的做法。

One-off Chopsticks注意：此部分试题在答题卡1上。

Part ⅡReading Comprehension （Skimming and Scanning）（15 minutes）Directions：In this part, you will have 15 minutes to go over the passage quickly and answer the questions on Answer Sheet 1. For questions 1-7, choose the best answer from the four choices marked A,B, C and D. For questions 8-10, complete the sentences with the information given in the passage.注意：此部分试题请在答题卡1上作答；8-10题在答题卡1上。

Plastic Bag PollutionThe use of plastic bags has increased at an alarming rate since they became popular in the 1980s. Big black bin liners, plastic carrier bags carrying advertising logos, clear sandwich bags and a variety of other forms. They‟re lightweight, handy and easily discarded. Too easily discarded. Just take a look around you. Plastic bags can be seen hanging from the branches, flying in the air, settled amongst bushes, and floating on rivers. They block up drains causing water and sewage to overflow and become the breeding grounds of bacteria that cause diseases.Plastic bags are difficult and costly to recycle and most end up on landfill sites where they take around 300 years to decay. They break down into tiny toxic particles that pollute the soil and waterways and enter the food chain when animals accidentally consume them. But the problems surrounding waste plastic bags start long before they decay. Our planet is becoming increasingly endangered by our over-use of plastic bags.Production of Plastic BagsPlastic bags are made from ethylene (乙烯)，a gas that is produced as a by-product of oil, gas and coal production. Ethylene is made into polymers (聚合体)—chains of ethylene molecules—called polyethylene. This substance, also known as polythene, is used to produce a range of items, including plastic bags.You have probably noticed two types of plastic shopping bag s—the lighter, filmy bags you get from supermarkets and food outlets, and the heavier bags from other retail outlets, like clothing stores. The supermarket bags are made from high density polyethylene (HDPE), while the thicker bags are made from low density polyethylene (LDPE). Unlike HDPE, LDPE can not be recycled. While plastic bags may not be the most high tech application of plastics technology, it is certainly one of the most prevalent. According to Clean Up Australia, Australians use in excessof 6 billion plastic bags per year. If tied together these bags would form a chain that is long enough to go around the world 37 times. More than half of these bags (3.6 billion) are made from HDPE.Dangers to Sea LifePlastic bags are now amongst the top 12 items of waste most often found along the coastlines. Animals and sea creatures are hurt and killed every day by discarded plastic bag s—a dead turtle with a plastic bag hanging from its mouth isn‟t a pleasant sight but mistaking plastic bags for food is commonplace amongst marine animals. Plastic blocks their intestines (肠道) and leads to slow starvation. Others become entangled in plastic bags and drown.Because plastic bags take hundreds of years to break down, every year our seas become “home” to more and more bags that find their way there through our sewers and waterways. Every bag that‟s washed down a drain during rainfall ends up in the sea; every bag that‟s flushed down a toilet ends up in the sea; every bag that‟s blown into a river will most likely end up in the sea. One disquieting fact stemming from this is that plastic bags can become serial killers. Once an animal diet of plastic bags, it decays at a much faster rate than the bag. Once the animal has decomposed, the bag is released back into the environment more or less intact, ready to be eaten by another misguided organism. The incredibly slow rate of decay of plastic bags also means that each bag we use compounds the problem, because the bags simply accumulate.Pollution Taxes & BansDifferent countries have adopted a range of approaches to discourage the use of plastic bags in an attempt to cut down on the number of bags finding their way into the environment. In South Africa for instance, where an estimated eight billion plastic bags are used annually, the government has implemented new regulations that will see only thicker, more durable plastic bags produced. As well as making them more suitable for reuse, it is hoped that the extra cost associated with their production and supply will prevent retailers giving the higher quality bags away, making their use a more expensive option for consumers.The use of plastic bags is being discouraged in other places such as Singapore and Tainwan, while the tax imposed on the use of plastic shopping bags in Ireland has resulted in the use of plastic shopping bags being reduced by 90% in just six months. Prior to the 15 euro cent per bag tax, it was estimated that 1.2 million plastic shopping bags were being handed out in Ireland per year. The money raised from the tax will be used to fund environmental initiatives.While anything that lowers our consumption is good, why wait until we‟re hit financially before we change our habits when changes aren‟t difficult to make?How about taking previously used bags with you next time you go to the shops? Or even better—turn back time and do as grandma did and take a bamboo basket with you every time you go shopping. Shop-owners would rather you use their bags as they‟re a convenient and cheap form of advertising, but what‟s more important, shareholder profits or the environment?Plastic bags can be re-cycled although only about one in every 200 ever finds its way to a recycling unit. Find out if there‟s a re-cycling bin near you and , if not, ask your local authority for one.Greenhouse GasesSome countries have introduced so called “environmentally friendly plastic bags”that are biodegradable (可生物降解). These bags take about three years to break down into practically nothing and while that sounds like an attractive solution, the truth is that the process of breakingdown these petrol-based bags causes carbon to become methane (甲烷) which is a greenhouse gas.It‟s also possible to get “plastic”bags manufactured from corn. These break down very quickly and give off no more methane than another corn product on landfill sites. Unfortunately, they‟re more expensive to produce and few shops use them.Garbage BinsOne question that‟s often raised in connection with the plastic bag dilemma is what should be used to line bins if not plastic bags?To answer that, let‟s go back in time to when plastic bags were yet to become commonplace. What did we do?For one, we had far less garbage. Goods had much less packaging than is the case today so we didn‟t fill our bins as quickly. Peelings , eggshells, tea bags and coffee grounds were all used as compost (肥料) for crops, as was any paper that wasn‟t needed for lighting fires. What was left went into an unlined bin with anything dirty or wet being wrapped in newspaper first.If we choose carefully when shopping so as not to bring home more packaging than necessary—there‟s really no point in bring it home just to throw it straight in the bin when we unpack, the amount of waste that goes into the kitchen bin will be halved , at least.Individual EffortBy refusing to use plastic bags, you can make a huge difference to the pollution problem. Remember that each person uses about 83 bags a year. If there are four people in your family, that‟s 332 plastic bags less every year. That‟s 332 bags less that will:—release toxins into the ground water from landfill sites—stay in the environment for hundreds of years—get into the food chain through animals—waste energy during the manufacturing process—kill any of the estimated 100,000 marine animals that die each year of plastic pollution These are all-important factors that have a profound affect on our environment and the creatures we share our planet with. Should we really put our own selfish needs before the needs of everything around us now and the lives of future generations? That‟s up to you to decide.1.Many thick, clothing-carrying plastic bags, made from ________, can hardly be recycled.A. high density polyethyleneB. low density polyethyleneC. oil and coalD. gas and cola2. The annual use of plastic bags in ________ exceeds 6 billion.A. SingaporeB. AustraliaC. IrelandD. Taiwan3. Plastic bags can become a horrible serial killer because of ________.A. their toxic particlesB. their lightweightC. their incredibly slow rate of decayD. their overuse by people4. In South Africa, in line with a new government regulation, ________ will be banned from production.A. thicker, more durable plastic bagsB. plastic bags suitable for reuseC. thinner, short-living plastic bagsD. thicker, higher-quality plastic bags5. ________ , though friendly to the environment, cost too much in manufacture to widely used.A. The petrol based bagsB. The methane-releasing bagsC. The carbon-releasing bagsD. he corn-based bags6. What is bothering people in connection with plastic bag dilemma?A. The question of what should be used to replace plastic bags as garbage bin liners.B. The fact that only one in every 200 plastic bags end up being recycled.C. The increasing amount of garbage.D. The high cost involved in producing environmentally friendly bags.7. I t‟s estimated that every year about ________ are killed by discarded plastic bags.A. 10,000 animalsB. 100,000 sea animalsC. 100,000 land animalsD. 10,000 wildlife8. The final destination of many carelessly discarded plastic bags is____________________.9. In Ireland, following the collection of a 15 euro cent per bag tax, plastic bag usage has dropped by ________.10. The so-called environmentally friendless bags are much quicker to break down, but will release a great deal of ______________________________.Part Ⅲ Listening Comprehension （35 minutes）Section ADirections: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions 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 2 with a single line through the centre.注意：此部分试题请在答题卡2上作答。

四级模拟试题及答案[正文]四级模拟试题及答案Part I: 听力Section AQuestions 1-31. C) Attend a lecture.2. A) The school cafeteria.3. B) In the library.Section BQuestions 4-64. C) It's next door to the bookstore.5. A) The woman's watch is more expensive.6. B) She needs the man's help for furniture assembly. Section CQuestions 7-107. C) A university course.8. B) In a hospital.9. C) He was improved by medication.10. A) Studying on the beach.Part II: 阅读理解Passage One11. B) The invention of the steam engine.12. C) Coal mining.13. A) Reducing road congestion.14. D) It is an ineffective means of transportation. Passage Two15. C) Use solar energy to charge electronic devices.16. B) The design of the cap on the water bottle.17. D) You can use the built-in filter for tap water.18. A) They reduce the use of plastic water bottles. Passage Three19. D) It has many Internet users.20. A) It aids the government in monitoring its citizens.21. B) Over-dependence on technology.22. C) Greed and corruption within the government. Part III: 英语知识运用23. C) suddenly24. B) challenging25. A) dishonorable26. D) interpretation27. C) creative28. B) abstractPart IV: 写作Directions: For this part, you are allowed thirty minutes to write a short essay on the topic "The Advantages and Disadvantages of Online Learning". You should write at least 150 words but no more than 200 words.Online Learning: Advantages and DisadvantagesOnline learning, also known as e-learning or distance education, has gained increasing popularity in recent years. It provides students with the flexibility to study at their own pace and convenience. However, it also brings some disadvantages.One of the advantages of online learning is the flexibility it offers. Students can access course materials and lectures anytime and anywhere as long as they have an internet connection. This is especially beneficial for working adults who may not have the time to attend traditional classes. Moreover, online learning allows students to review the materials repeatedly until they fully understand the concepts.Another advantage is the cost-saving aspect. Online courses are often more affordable than traditional classroom-based courses. Students can save money on commuting, housing, and textbooks. Additionally, online learning opens up opportunities for students who do not have access to certain courses or universities in their local area.Despite its advantages, online learning also has some disadvantages. The lack of face-to-face interaction with instructors and peers can be a drawback for some students. Students may feel isolated and miss out on social interactions that are often experienced in a traditional classroom setting. Moreover, self-discipline and time management skills are crucial for successful online learning, and not all students possess these qualities.In conclusion, online learning has both advantages and disadvantages. It provides flexibility and cost-saving benefits, but it may also result in a lack of social interaction and require strong self-discipline from students. As technology continues to advance, it is important to find a balance between online and traditional learning methods for optimal educational experiences.答案及解析听力：1-3 主旨题。

大学英语四级模拟测试（一）（附答案）听力（略）Part II Reading ComprehensionDirections: There are 4 passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D), and you should decide which is the best choice. (40 points)Passage 1Questions 26 to 30 are based on the following passage:The United States is full of automobiles. There are still many families without cars, but some families have two or even more. However, cars are used for more than pleasure. They are necessary part of life.Cars are used for business. They are driven to offices and factories by workers who have no other way to get to their jobs. When salesmen are sent to different parts of the city, they have to drive in order to carry their products. Farmers have to drive into the city in order to get supplies. Sometimes small children must be driven to school. In some cities school buses are used only when children live more than a mile from the school. When the children are too young to walk that far, their mothers take turns driving them to school. One mother drives on Mondays, taking her own children and neighbors' children as well. Another drives on Tuesdays, another on Wednesdays, and so on. This is called forming a car pool. Men also form car pools, with three or four men taking turns driving to the place where they all work.More car pools should be formed in order to put fewer automobiles on the road and to use less gasoline. Parking is a great problem, and so is the traffic in and around cities. Too manycars are being driven. Something will have to be done about the use of cars.26. Many families in the U.S. own cars because ________.A) cars are a source of pleasure for themB) they need a car to form a car poolC) they live more than a mile away from the schoolD) cars form necessary part in their life27. Which of the following groups is NOT mentioned though they certainly drive cars?A) Office workers.B) Police and mail carriers.C) Salesmen and farmers.D) Factory workers.28. Paragraph 3 suggests that in the United States ________.A) children have to walk to schoolB) school buses take all the children to schoolC) mothers drive children to schoolD) families usually live within a mile from the school29. "A car pool" most probably means ________.A) a number of people sharing the use of a carB) a place for parking carsC) a group of tourists driving alternativelyD) a place for learning to drive30. What is the author's advice about the use of cars?A) To provide larger parking spaces.B) To build better roads.C) To produce fewer automobiles.D) To form more car pools.Passage 2Question 31 to 35 are based on the following passage:Recent fires have destroyed much of Indonesian forests and pose the latest threat to the survival of the endangered orangutans（红毛猿）. Thirty orangutans fleeing their burning forest home have been killed by villagers, who see the animals as crop raiders. Orangutan mothers have been killed so that their young can be captured and sold into the illegal wildlife pet trade. Orangutan experts continue to receive orangutan infants whose mothers have been killed while searching for food in plantations and fields.The fires, caused by drought and coupled with fire-setting methods to clear forests, have destroyed more than two million acres. When fire gets into the rainforests' layer of dry peat (partly decayed plant material which covers the soil), it can burn slowly off and on for months or years after the original fire. These fires continue until heavy rainfall soaks the peat through and through. Orangutans once numbered in the hundreds of thousands, but their population has dropped to roughly 25 000 due to fire, the destruction of forests from felling trees for timber and agriculture, and losses linked to the live-animal trade. Before the fires, only 40 percent of the orangutans' original habitat remained, and now, their habitat has become even smaller.31. What can be the best title for this passage?A) Fires Drive Orangutans to Danger.B) Orangutans Are Precious Animals.C) Fires in Indonesia Keep on Flaming.D) Orangutans Endanger the Crops of Indonesia.32. Which of the following is true about villagers?A) They set fire in order to kill orangutans for food.B) They are ignorant of wild life pets trade.C) They dislike orangutans because they destroy crops.D) They continue to receive orangutans infants.33. According to this passage, fires in Indonesia ________.A) will not end until it starts to rainB) will be eventually put out by human effortC) will die out when the winds stop blowingD) will only stop when the peat is totally wet34. Some people buy orangutans because ________.A) they want to save orangutansB) they want to keep orangutans as petsC) they want to build new homes for orangutansD) they want to take care of orangutan infants35. Which of the following is NOT a reason for the decreasing of orangutans in Indonesia?A) The forests have been burned to make land for agriculture.B) Most of orangutans' forests have been destroyed.C) Mother orangutans have been caught and sold in pet-animal market.D) Trees have been cut down for human profits.Passage 3Question 36 to 40 are based on the following passage:Don't try kicking the tires on a very modern and strange car developed by students at Coventry University. Not only does the car have no tires, it has no steering wheel, either.The Coventry Concept Car, as it is called is a completely new design that looks more like a snail（蜗牛）than an automobile. No working model, or functional form of the vehicle exists yet, but its designers recently introduced a life-sized model and explained how a real one would work. Electric motors would move rapidly undulating pad（形成波浪状气垫）underneath the car; moving the vehicle in any direction at speeds up to 480 kmper hour. The motion would be a much faster way of crawling ? the way snails move. (Muscles in the bottom of a snail's flat foot contract （收缩）in waves that push the snail along the ground.) Steering of the snail car would be handled automatically by an onboard computer, which would receive signals from orbiting satellites. Those signals would help guide the snail car along a preprogrammed route.Even the car's color could be computer-controlled, the student designer suggested. Instead of a painted out appearance, the snail car would sport an electronically sensitive film that changes color according to its surroundings.36. The Coventry Concept Car is designed mainly based on ________.A) the appearance of a snailB) the movement of a snailC) the life-size of a snailD) the behavior of a snail37. Which of the following is true about the Coventry Concept Car?A) Its first working model can run at 480 km per hour.B) Its direction is controlled by a steering wheel.C) It moves in all directions on a pair of flat feet.D) It travels automatically along preprogrammed routes.38. The color of the car can be changed ______.A) by applying different films onto its exteriorB) automatically in accordance with its surroundingsC) by signals received by the car computerD) according to the customer's requirement39. The word "sport" in the last but one line most probably means _______.A) applyB) wearC) runD) notice40. Which of the following might be the best title for the passage?A) A Car at a Speed of a SnailB) A Computer-Controlled Electronic VehicleC) A Car Without Tires and Steering WheelD) A Car with No Functional FormPassage 4Question 41 to 45 are based on the following passage:Have you ever been afraid to talk back when you were treated unfairly? Have you ever bought something just because the salesman talked you into it? Are you afraid to ask someone for a date?Many people are afraid to assert themselves（坚持自己的权利）. Dr. Alberti, author of Stand Up, Speak Out, and T alk Back, thinks it's because their self-respect is low. "Our whole set-up is designed to make people distrust themselves," says Alberti. "There's always a 'superior' around: a parent, a teacher, a boss who 'knows better'."But Alberti and other scientists are doing something to help those people assert themselves. They offer "Assertiveness Training" courses ? AT for short. In the AT course people learn that they have a right to be themselves. They learn to speak out and feel good about doing so. They learn to be aggressive without hurting other people.In one way, learning to speak out is to overcome fear. A group taking an AT course will help the timid person to lose hisfear. But AT uses an even stronger motive ? the need to share. The timid person speaks out in the group because he wants to tell how he feels.Whether or not you speak up for yourself depends on your self-image. If someone you face is more "important" than you, you may feel less of a person. You start to doubt your own good sense. You go by the other person's label. But, why should you? AT says you can get to feel good about yourself. And once you do, you can learn to speak out.41. The problem the writer talks about is that _______.A) some people buy things they don't wantB) some people are afraid of arguing for themselvesC) there are too many "superiors" around usD) there is too much pressure from our society42. The cause of the problem discussed in this passage is that _______.A) some people have a low self-imageB) there is always someone around who "knows better"C) salesmen talk people into buying things they don't wantD) people don't share opinions in a group43. The set-up of our society often _______.A) makes people distrust themselvesB) makes things more favorable for "superiors"C) keeps people from knowing as much as their "superiors"D) helps people to learn to speak up for their rights44. A T is one solution to the problem in this passage, but one thing AT doesn't promote is to help people ________.A) to share their feelingsB) to have a right to be oneselfC) to overcome their fear before othersD) to be more aggressive45. The title for this passage could be ________.A) Assertiveness TrainingB) Loss of Self-respectC) The Importance of Human RightsD) Share Your Feelings with OthersPart III Vocabulary and StructureDirections: There are 20 incomplete sentences in this part. For each sentence there are four choices marked A), B), C) and D). Choose the ONE that best completes the sentences. (10 points)46. Those high school students _____ to computer games will usually lose interest in their studies.A) absorbed B) addicted C) approached D) adapted47. What did you put in your suitcase? It's almost _____ mine.A) four times as heavy as B) four times heavier as C) as four times heavy as D) as heavy as four times48. In some countries today, it is still illegal for doctors to help a woman have a(n) _____.A) pregnancy B) abortion C) miscarriage D) embryo49. Metal _____ when cooled and expands when heated.A) decreases B) reduces C) condenses D) contracts50. The employees were afraid to ask for a salary raise _____ they should lose their jobs.A) lest B) or else C) so that D) in order that51. There has been a heated controversy over the new traffic _____ forbidding automobiles in downtown during the daytime.A) laws B) bans C) alerts D) regulations52. She has won a _____ prize for her poems published in the past 10 years.A) privileged B) awarded C) prestigious D) rewarded53. Each man and woman must sign _____ full names before entering the examination room.A) his B) her C) their D) one's49. Giving the child problems he can't solve will only ________ him.A) frustrate B) challenge C) conquer D) press54. It is pleasant to see that the whole community has participated in this environmental action with great _____.A) validity B) vow C) vigor D) vision55. As they can't have a child of their own, they're going to _____ a little girl.A) adapt B) adopt C) adjust D) receive56. It's no use _____ wit him. You might as well argue with a stone wall.A) arguing B) of arguing C) in arguing D) to argue57. The official figures of unemployment revealed that millions of citizens could hardly make a _____ living.A) honest B) decent C) appropriate D) suitable58. The company has been found guilty violating copyright laws _____ a regular _____.A) for ... reason B) by ... way C) on ... basis D) to ... degree59. Believe it or not, he arrived in America with only 25 dollars _____.A) by his name B) to his name C) in his name D) with his name60. _____ is no reason for dismissing her.A) A few minutes late B) Owing to a few minutes late C) Because she was a few minutes late D) Being a few minutes late61. I handed in the application two months ago, but I have not received any response _____.A) in date B) out of date C) to date D) on date62. In the course of a day our students do far more than just _____ classes.A) attending B) attended C) to attend D) attend63. The newspaper didn't mention its secret _____ who provided the information for the event.A) resource B) source C) origin D) cause64. The clothes a person wears may express his _____ or social position.A) state B) significance C) determination D) status65. If I hadn't turned off the power before you touched the wires, you _____ now.A) wouldn't have smiled B) didn't smile C) wouldn't be smiling D) couldn't have smiledPart IV TranslationSection A:Directions: Read the following passage and translate the 5 underlined sentences into Chinese.(5 points)(66) To be successful at business, you not only have to be good at what you do, but you have to be good at letting others know how good you are at what you do. You have to come up with a plan to get your product or service in the market place. You have to come up with a marketing plan. (67) This marketing plan involves two parts: you have to figure out who the market is; and you have to make the product or service known to that market. These two work together.It is a rare case in marketing when a product has appeal to everyone regardless of sex, age, income level or special interests.(68) The more typical case is that a product will appeal to a limited group of people who are willing to put down their hard-earned dollars to buy what you have to sell.(69) The basic question to keep in mind as you develop your marketing plan is: Who would want to buy the type of product I make and how can I develop it to be saleable to these special people? Once you define your market, you often have to modify your product to fit that market. Sometimes the answer to this question is clear and logical. Often, however, a business person has to do some research and experimentation to find the answer.(70) Many a business has failed because people didn't consider this obvious but critical question: Who is the market?66.____________________________________________________________________ ________67._____________________________________________________________ _______________68.____________________________________________________________________ ________69.____________________________________________________________________ ________70.____________________________________________________________________ ________Section BDirections: In this section, you will translate 5 sentences below into English. (10 points)71. 一群科学家上周在一次新闻发布会上宣布的克隆计划在全世界引起了轩然大波。

大学英语四级真题模拟试卷及答案三套全大学英语四级真题试卷及答案三套全目录年12 月大学英语四级真题试题一(完整版) (1)答案(15)年12 月大学英语四级真题试题二(完整版) (15)答案(24)年12 月大学英语四级真题试题三(完整版) (24)答案(34)年12 月大学英语四级真题试题一(完整版)Part I Writing (25 minutes)(请于正式开考后半小时内完成该部分，之后将进行听力考试)Directions:For this part, you are allowed 30 minutes to write an a short easy onhow to besthandle the relationship between doctors and patients. You should write at least 120words but no more than 180 words.Part II Listening Comprehension (30 minutes)Section ADirections:In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and questions will be spoken only once. After you hear questions, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter onAnswer Sheet 1 with a single line through the centre.注意：此部分试题请在答题卡1上作答。

2021年6月大学英语四级考试模拟试卷及参考答案(第一套〕Part II Reading Comprehension (35 minutes)Directions: There are 4 reading passages in this part. Each passage is foll owed by some questions or unfinished statements. For each of them there are fou r choices marked A), B), C) and D). You should decide on the best choice and ma rk the corresponding letter on the Answer Sheet with a single line through the center. Passage OneQuestions 21 to 25 are based on the following passage.There is a difference between science and technology. Science is a method o f answering theoretical questions; technology is a method of solving practical problems. Science has to do with discovering the facts and relationships betwee n observable phenomena in nature and with establishing theories that serve to o rganize these facts and relationships; technology has to do with tools, techniq ues, and procedures for implementing the finding of science.Another distinction between science and technology has to do with the progr ess in each.Progress in science excludes the human factor. Scientists, who seek to comp rehend the universe and know the truth within the highest degree of accuracy an d certainty, cannot pay attention to their own or other people's likes or disli kes or to popular ideas about the fitness of things. What scientists discover m ay shock or anger people-as did Darwin's theory of evolution. But even an unple asant truth is more than likely to be useful; besides, we have the choice of re fusing to believe it! But hardly so with technology; we do not have the choiceof refusing to hear the sonic boom produced by a supersonic aircraft flying ove rhead; we do not have the option of refusing to breathe polluted air; and we do not have the option of living in a non-atomic age. Unlike science progress, te chnology must be measured in terms of the human factor. The legitimate purpose of technology is to serve people in general, not merely some people; and future generations, not merely those who presently wish to gain advantage for themsel ves. Technology must be humanistic if it is to lead to a better world.21. The difference between science and technology lies in that _____.A) the former provides answers to theoretical questions while the latter to practical problemsB) the former seeks to comprehend the universe while the latter helps chang e the material worldC) the former aims to discover the inter-connections of facts and the rules that explain them while the latter, to discover new designs and ways of making the things we use in our daily lifeD) all of the above22. Which of the following may be representative of science?A) The improvement of people's life.B) The theory of people's life.C) Farming tools.D) Mass production.23. According to the author, scientific theories _____.A) must be strictly objectiveB) usually take into consideration people's likes and dislikesC) should conform to popular opinionsD) always appear in perfect and finished forms24. The author states that technology itself _____.A) is responsible for widespread pollution and resource exhaustionB) should serve those who wish to gain advantage for themselvesC) will lead to a better world if put to wise useD) will inevitably be for bad purpose25. The tone of the author in this passage is _____.A) positive B) negative C) factual D) critical Passage TwoQuestions 26 to 30 are based on the following passage.Americans have always been ambivalent in their attitudes toward education. On the one hand, free and universal public education was seen as necessary in a democracy, for how else would citizens learn how to govern themselves in a res ponsible way? On the other hand, America was always a country that offered fina ncial opportunities for which education was not needed: on the road from rags t o riches, schooling-beyond the basics of reading, writing, and arithmetic-was a n unnecessary detour.Even today, it is still possible for people to achieve financial success wi thout much education, but the number of situations in which this is possible is decreasing. In today's more complex world, the opportunities for financial suc cess is closely related to the need for education, especially higher education.Our society is rapidly becoming one whose chief product is information, and dealing with this information requires more and more specialized education. In other words, we grow up learning more and more about fewer and fewer subjects.In the future, this trend is likely to continue. Tomorrow's world will be e ven more complex than today's world, and, to manage this complexity, even more specialized education will be needed.26. The topic treated in this passage is _____.A) education in general B) Americans' attitudesC) higher education D) American education27. Americans' attitudes toward education have always been _____.A) certain B) contradictory C) ambitious D) unclear28. Today, financial success is closely related to the need for _____.A) higher education B) public education C) responsible citizens D) learning the basics29. It can be inferred from the third paragraph that _____.A) information is our only productB) education in the future will be specializedC) we are entering an age of informationD) we are living in an age of information30. Which of the following is the best title for the passage?A) The History of American Education.B) The Need for Specialized Education.C) The Future of the American Educational System.D) Attitudes toward American Education. Passage ThreeQuestions 31 to 35 are based on the following passage.A growing world population and the discoveries of science may alter this pa ttern of distribution in the future. As men slowly learn to master diseases, co ntrol floods, prevent famines, and stop wars, fewer people die every year; andin consequence the population of the world is steadily increasing. In 1925 ther e were about 2,000 million people in the world; by the end of the century there may well be over 4,000 million.When numbers rise the extra mouths must be fed. New lands must be brought u nder cultivation, or land already farmed made to yield larger crops. In some ar eas the accessible land is so intensively cultivated that it will be difficult to make it provide more food. In some areas the population is so dense that the land is parceled out in units too tiny to allow for much improvement in farmin g methods. Were a large part of this farming population drawn off into industri al occupations, the land might be farmed much more productively by modern metho ds. There is now a race for science, technology, and industry to keep the outpu t of food rising faster than the number of people to be fed. New strains of cro ps are being developed which will thrive in unfavorable climates: there are now farms beyond the Arctic Circle in Siberia and North America; irrigation and dr y-farming methods bring arid lands under the plough, dams hold back the waters of great rivers to ensure water for the fields in all seasons and to provide el ectric power for new industries; industrial chemistry provides fertilizers to s uit particular soils; aeroplanes spray crops to destroy locusts and many plant diseases. Every year some new means is devised to increase or to protect the fo od of the world.31. The author says that the world population is growing because _____.A) there are many rich valleys and fertile plainsB) the pattern of distribution is being alteredC) people are living longerD) new land is being brought under cultivation32. The author says that in densely populated areas the land might be more productively farmed if _____.A) the plots were subdividedB) a large part of the people moved to a different part of the countryC) industrial methods were used in farmingD) the units of land were made much larger33. We are told that there are now farms beyond the Arctic Circle. This has been made possible by _____.A) producing new strains of cropsB) irrigation and dry-farming methodsC) providing fertilizersD) destroying pests and disease34. Which of these words is nearest in meaning to the word "strains"?A) types B) sizes C) seeds D) harvests35. The author's main purpose is to _____.A) argue for a belief B) describe a phenomenonC) entertain D) propose a conclusion Passage FourQuestions 36 to 40 are based on the following passage.For some time past it has been widely accepted that babies-and other creatu res-learn to do things because certain acts lead to "rewards"; and there is no reason to doubt that this is true. But it used also to be widely believed that effective rewards, at least in the early stages, had to be directly related to such basic physiological(生理的) "drives" as thirst or hunger. In other words, a baby would learn if he got food or drink or some sort of physical comfort, no t otherwise.It is now clear that this is not so. Babies will learn to behave in ways th at produce results in the world with no reward except the successful outcome.Papousek began his studies by using milk in the normal way to "reward" the babies and so teach them to carry out some simple movements, such as turning th e head to one side or the other. Then he noticed that a baby who had had enough to drink would refuse the milk but would still go on making the learned respon se with clear signs of pleasure. So he began to study the children's responses in situations where no milk was provided. He quickly found that children as you ng as four months would learn to turn their heads to right or left if the movem ent "switched on" a display of lights-and indeed that they were capable of lear ning quite complex turns to bring about this result, for instance, two left or two right, or even to make as many as three turns to one side.Papousek's light display was placed directly in front of the babies and he made the interesting observation that sometimes they would not turn back to wat ch the lights closely although they would "smile and bubble" when the display c ame on. Papousek concluded that it was not primarily the sight of the lights wh ich pleased them, it was the success they were achieving in solving the problem, in mastering the skill, and that there exists a fundamental human urge to make sense of the world and bring it under intentional control.36. According to the author, babies learn to do things which . A) are direc tly related to pleasure B) will meet their physical needsC) will bring them a feeling of success D) will satisfy their curiosity37. Papousek noticed in his studies that a baby .A) would make learned responses when it saw the milkB) would carry out learned movements when it had enough to drinkC) would continue the simple movements without being given milkD) would turn its head to right or left when it had enough to drink38. In Papousek's experiment babies make learned movements of the head in o rder to .A) have the lights turned onB) be rewarded with milkC) please their parentsD) be praised39. The babies would "smile and bubble" at the lights because .A) the lights were directly related to some basic "drives"B) the sight of the lights was interestingC) they need not turn back to watch the lightsD) they succeeded in "switching on" the lights40. According to Papousek, the pleasure babies get in achieving something i s a reflection of .A) a basic human desire to understand and control the worldB) the satisfaction of certain physiological needsC) their strong desire to solve complex problemsD) a fundamental human urge to display their learned skillsPart III Vocabulary (20 minutes)Directions: There are 30 incomplete sentences in this part. For each senten ce 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 the Answer S heet with a single line through the center.41. It's the in this country to go out and pick flower on the first day of spring.A) case B) custom C) habit D) precedent42. He didn't take the flat because he couldn't afford the .A) hire B) fare C) rent D) salary43. I've made an for you to see the dentist at 5 o'clock tomorrow.A) appointment B) interview C) opportunity D) assignation44. The house was poorly built; for , the roof leaked.A) short B) certain C) one thing D) sure45. the weather is concerned, I do not think it matters.A) So long as B) So far as C) As long as D) So far46. The continuous rain set the harvesting of wheat by two weeks.A) off B) back C) down D) about47. The helicopter hovered the trees.A) in B) over C) down D) up48.The mother made a shirt for the boy out of the of the cloth.A) odd and end B) odd and ends C) odds and end D) odds and ends49. Let's get this old barn. It's of no use to us.A) over B) ready C) rid of D) used to50. George's ability to learn from observations and experience greatly to h is success in public life.A) owed B) contributed C) attached D) related51. I asked him where my sister was, and he the store across the street.A) nodded B) indicated C) figured D) guessed52. They are staying with us the time being until they find a place of thei r own.A) during B) for C) since D) in53. 100 competitors had the race.A) put their names for B) entered forC) put themselves for D) taken part54. He me by two games to one.A) beat B) conquered C) gained D) won55. They have put the bird in a cage to it from flying away.A) avoid B) prevent C) forbid D) control56. In recent years, new buildings have up like mushrooms in the city.A) jumped B) sprung C) leapt D) put57. I from among the crowd an old friend of mine whom I hadn't seen for ten years.A) figured out B) picked out C) realized D) picked over58. I thought he'd never anything, but it's turned out that I was wrong.A) arrive B) amount to C) reach for D) add to59. He managed to pay off his debts.A) anyhow or other B) anyhow or anotherC) somehow or other D) somehow or another60. You'd better not Mr. Ganz. He may get angry.A) play a joke on B) play outC) play into the hands of D) play at61. We existed on nothing but the necessities.A) empty B) bare C) hollow D) undressed62. The seasons change, independent anyone's wishes.A) on B) to C) with D) of63. The mail was for two days because of the snowstorm.A) misled B) lost C) delayed D) damaged64. He has been absent class for quite some time.A) in B) for C) with D) from65. I owe a great deal my parents and teachers.A) to B) for C) toward D) of66. We must manage to do our work better with people.A) less money and few B) less money and fewerC) little money and less D) few money and less67. Mr. Black is to our English evening.A) more pleased than to come B) more pleased to come thanC) more than pleased to come D) more pleasing than to come68. You that car with the brakes out of order. You might have had a serious accident.A) ought to drive B) oughtn't do driveC) ought to have driven D) oughtn't to have driven69. If it for their support, we would be in a very difficult position.A) is not B) weren't C) was not D) be not70. If only we as we were told! This would never have happened.A) would do B) had done C) do D) didPart IV Cloze (15 minutes)Directions: There are 20 blanks in the following passage. For each blank th ere are four choices marked A), B), C) and D). You should choose the ONE that b est fits into the passage.Everyone ___71___ of the President of the US ___72___ the most powerful man in ___73___. But when the representatives of the 13 former British colonies __ _74___ to draw up the constitution of the new country ___75___ 1788, ___76___ o f them were not sure whether they ___77___ to have a President at all. There we re even ___78___ who ___79___ a king, ___80___ their successful war against the British king, George III. The decision was in doubt ___81___ the last moment. One group wanted ___82___ for life, while ___83___ suggested that ___84___ not be a President, because a Committee would govern the country better; a third gr oup ___85___ a President ___86___ term of office would last seven years but who could not stand for reelection, because they were afraid he would spend his ti me ___87___ votes at the next election. In the end they chose George Washington as President for four years and let him ___88___ for reelection because they t rusted him. But they were ___89___ to make rules in case a future President ___ 90___ badly and these rules were used to get rid of President Nixon two hundred s years later.71. A) use to think B) think C) thinks D) uses to think72. A) to be B) being C) like D) as73. A) western world B) the western world C) accident D) the accident74. A) found B) met C) encountered D) put together75. A) at B) by C) on D) in76. A) a number B) a great deal C) a large amount D) the most77. A) should B) would C) needed D) must78. A) few B) a few C) little D) a little79. A) had preferred B) would have preferredC) should have preferred D) were preferring80. A) although B) however C) nevertheless D) in spite of81. A) until B) as far as C) so far as D) by82. A) that the President was elected B) that the President would be electe dC) to elect the PresidentD) to be elected the President83. A) another B) other C) the other D) some other84. A) it should B) it would C) there should D) there would85. A) would have liked B) would rather C) would like D) would be liking86. A) that's B) whose C) which D) of which87. A) looking for B) to look for C) to look at D) looking at88. A) stand B) to stand C) be standing D) that he stood89. A) so careful B) too careful C) careful enough D) enough careful90. A) would carry B) carried C) would behave D) behavedPart V Writing (30 minutes)Directions: For this part, you are allowed thirty minutes to write a compos ition on the topic "The Expenses of an Average Worker". You should study the fo llowing table carefully and base your composition on the outlines given below. You should write at least 100 words.1. The changes in the worker's expenses from 1990 to 2000.2. The possible reasons for the changes.3. My prediction.The Expenses of an Average Worker2021年6月大学英语四级考试模拟试卷参考答案(第一套〕21-25. DBACC 26-30. DBABD 31. CDAAA 36-40. CCADA41-45. BCACB 46-50. BBDCB 51-55. BBBAB 56-60. BBBCA61-65. BDCDA 66-70. BCDBB 71-75. CDBBD 76-80. ACBBD81-85. ACACC 86-90. BAACC。

大学英语四级模拟试题
一、听力理解（共25分）
1. 短对话理解（每题1分，共5题）
请根据所听到的对话内容，从A、B、C、D四个选项中选择正确答案。

2. 长对话理解（每题1分，共10题）
请根据所听到的对话内容，从A、B、C、D四个选项中选择正确答案。

3. 短文理解（每题1分，共5题）
请根据所听到的短文内容，从A、B、C、D四个选项中选择正确答案。

4. 复合式听写（共5分）
请根据所听到的内容，填写空缺的单词或短语。

二、阅读理解（共20分）
1. 快速阅读（每题1分，共5题）
请根据所给文章内容，从A、B、C、D四个选项中选择正确答案。

2. 仔细阅读（每题2分，共10题）
请根据所给文章内容，从A、B、C、D四个选项中选择正确答案。

三、词汇与语法结构（共15分）
1. 词汇题（每题0.5分，共10题）
请根据句子的语境，从A、B、C、D四个选项中选择正确的单词或短语填空。

2. 语法题（每题0.5分，共5题）
请根据句子的语法结构，从A、B、C、D四个选项中选择正确的答案。

四、完形填空（共10分）
请从A、B、C、D四个选项中选择正确的答案，使文章完整、通顺。

五、翻译（共20分）
1. 英译汉（共10分）
请将下列英文句子翻译成中文。

2. 汉译英（共10分）
请将下列中文句子翻译成英文。

六、写作（共15分）
请根据所给的题目和提示，写一篇不少于120词的短文。

以上为大学英语四级模拟试题的基本结构和题型分布，考生应根据实际题目内容进行作答。

大学英语四级考试模拟试卷三(总分：490.50，做题时间：120分钟)一、Part ⅠWriting (总题数：1，分数：106.50)1.Directions: For this part, you are allowed 30 minutes to write a composition on the topic: Precious Water. You should write at least 150 words following the outline given below:1. 举例说明水对人类的重要性；2. 举例说明我国所面临的水资源问题；3. 为了生存和发展人们要……（分数：106.50）_________________________________________________________________ _________________________正确答案：(Precious WaterNo one doubts the importance of water. Human beings live on water, animals live on water, plants live on water and all living things live on water. You can't imagine what would happen if there were no water in the world!China is one of the countries in the world that are badly short of water. Water problem has become more acute in recent years with the increase of water consumption and pollution. In big cities, the water problem has become even worse. With the growth of population, more and more water is needed. With the development of the industry, a large quantity of water has been and is being polluted. Water pollution is the most serious problem that China is facing. It has spread to rivers, lakes, and even the oceans.In order to survive, man has to be wise enough to treasure water and try to prevent it from being polluted. Man should also know that all resources in the world are limited, including water. Make good use of them, otherwise, man will be punished by nature. To treasure water is to treasure life; to protect our environment is to protect ourselves.)解析：二、Part ⅡReading Comprehension (Skimming and Scanning) (总题数：1，分数：71.00)Pollution: A Life and Death IssueOne of the main themes of Planet under Pressure is the way many of the Earth's environmental crises reinforce one another. Pollution is an obvious example-we do not have the option of growing food, or finding enough water, on a squeaky-clean planet, but on one increasingly tarnished and trashed by the way we have used it so far.Cutting waste and clearing up pollution cost money. Yet time and again it is the quest for wealth that generates much of the mess is the first place. Living in a way that is less damaging to the Earth is not easy, but it is vital, because pollution is pervasive and often life-threatening.Air: the World Health Organization (WHO) says three million people are killedworldwide by outdoor air pollution annually from vehicles and industrial emissions, and 1.6 million indoors through using solid fuel. Most are in poor countries.Water: diseases carried in water are responsible for 80% of illnesses and deaths in developing countries, killing a child every eight seconds. Each year 2.1 million people die from diarrhoeal (痢疾的) diseases associated with poor water.Soil: contaminated land is a problem in industrialized countries, where former factories and power stations can leave waste like heavy metals in the soil. It can also occur in developing countries, sometimes used for dumping pesticides. Agriculture can pollute land with pesticides, nitrate-rich fertilizers and slurry from livestock. And when the contamination reaches rivers it damages life there, and can even create dead zones off the coast, as in the Gulf of Mexico.Chronic ProblemChemicals are a frequent pollutant. When we think of chemical contamination it is often images of events like Bhopal that come to mind. But the problem is widespread. One study says 7～20% of cancers are attributable to poor air and pollution in homes and workplaces. The WHO, concerned about chemicals that persist and build up in the body, especially in the young, says we may "be conducting a large-scale experiment with children's health".Some man-made chemicals, endocrine (内分泌) disruptors like phthalates (酞酸盐) and nonylphenol a breakdown product of spermicides (杀精子剂), cosmetics and detergents-are blamed for causing changes in the genitals of some animals. Affected species include polar bears-so not even the Arctic is immune. And the chemicals climb the food chain, from fish to mammals, and to us.About 70,000 chemicals are on the market, with around 1,500 new ones appearing annually. At least 30,000 are thought never to have been comprehensively tested for their possible risks to people.At first glance, the plastic buckets stacked in the corner of the environmental NGO office look like any others. But the containers are an unlikely weapon in one poor community's fight against oil companies which they say are responsible for widespread ill-health caused by years of pollution. The vessels are used by a network of local volunteers, known as the Bucket Brigade, to gather air samples in neighborhoods bordering oil refineries, as part of a campaign to monitor and document air pollution which they believe is coming from the plants.In South Africa, as in many developing and newly industrialized countries, legislation on air pollution has failed to keep pace with mushrooming industries. So local residents, like many in poor communities around the globe, have faced the problem of investigating their claim that industries on their doorsteps are making them sick.Trade-offBut the snag is that modern society demands many of them, and some are essential for survival. So while we invoke the precautionary principle, which always recommends erring on the side of caution, we have to recognize there will be trade-offs to be made.The pesticide DDT does great damage to wildlife and can affect the humannervous system, but can also be effective against malaria (疟疾). Where does the priority lie?The industrialized world has not yet cleaned up the mess it created, but it is reaping the benefits of the pollution it has caused. It can hardly tell the developing countries that they have no right to follow suit.Another complication in tackling pollution is that it does not respect political frontiers. There is a U.N. convention on trans-boundary air pollution, but that cannot cover every problem that can arise between neighbors, or between states which do not share a border. Perhaps the best example is climate change-the countries of the world share one atmosphere, and what one does can affect everyone.For One and AllOne of the principles that are supposed to apply here is simple-the polluter pays. Sometimes it is obvious who is to blame and who must pay the price, but it is not always straightforward to work out just who is the polluter, or whether the rest of us would be happy to pay the price of stopping the pollution.One way of cleaning up after ourselves would be to throw less away, designing products to be recycled or even just to last longer.Previous generations worked on the assumption that discarding our waste was a proper way to get rid of it, so we used to dump nuclear materials and other potential hazards at sea, confident they would be dispersed in the depths.We now think that is too risky because, as one author wrote, "there's no such place as 'away', and there's no such person as the 'other'."Irritating AirDespite recent improvements, however, the health problems are still there. A 2002 medical study, carried out by Durban's Nelson Mandela School of Medicine and a U.S. university, found that an abnormally high 52% of students and teachers at a primary school bordering the Engen plant suffered from asthma (哮喘). It found that increases in air pollution tended to aggravate asthma symptoms in children.The petrol producers do not dispute the findings but argue that researchers were unable to establish a causal link between air pollution and the high prevalence of asthma among the school population.For the community, the next step is to take legal action. But, according to internationally recognized environmentalist Bobby Peek, targeting the companies would be difficult as it would be near-impossible to prove that illnesses suffered were caused by pollution coming from a particular plant.Mr. Peek, who grew up beneath Engen's stacks, says the activists are now considering taking action against the authorities. "We are now looking at suing the government on constitutional grounds, for failing to ensure our right to protection from a harmful environment as stipulated in the constitution," he said.Legislative ChangeA new batch (批) of environmental laws, the National Air Quality Management Act, has just been passed by the South African parliament to replace outdated 1965 legislation with tighter controls and tougher sanctions.Martinus van Schalkwyk, the minister of environmental affairs and tourism,visited the south Durban basin earlier this year and said there were measures in place to improve the situation. "I share the anger and frustration of this community. It is long overdue," he told the South African Broadcasting Corporation.The local authorities have also established a "Multi-Point Plan" for the area. They say it is a powerful model for tackling pollution and points to a 40% reduction in sulphur dioxide emissions in recent years.（分数：71.0）(1).According to World Health Organization, how many people are killed by outdoor air pollution?（分数：7.1）A.3 million√B.2.1 millionC.1.6 millionD.3.2 million解析：细节题。