星火英语四级模拟试卷样题及解析
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星火英语四级听力答案星火英语四级听力答案星火英语四级听力答案一Section A1. C) It links the science of climate change to economicand policy issues.2. B) It would be more costly to deal with itsconsequences than to avoid it.3. A) The transition to low-carbon energy systems.4. C) Plan well in advance.5. B) What determines success.6. D) It means being good at seizing opportunities.7. D) Practice is essential to becoming good at something.8. C) Being passionate about work can make one wealthy.Section B9. A) The stump of a giant tree.10. B) Wind and water.11. D) It was created by supernatural powers.12. C) By lifting them well above the ground.13. A) They will buy something from the convenience stores.14. A) They can bring only temporary pleasures.15. D) Small daily savings can make a big difference in one’s life.Section C16. B) They are necessary in our lives.17. B) They feel too overwhelmed to deal with life’s problems.18. A) They expand our mind.19. B) It came from a 3D printer.20. C) When she was studying at a fashion design school.21. C) It was hard and breakable.22. D) It marks a breakthrough in printing material.23. A) They arise from the advances in technology.24. D) It is intensely competitive.25. D) Sharing of costs with each other.星火英语四级听力答案二Section A1. A) They were all good at cooking.2. D) His parents’ friends.3. C) No one of the group ate it.4. D) It was rather disappointing.5. B) The business success of the woman’s shop.6. C) Keep down its expenses.7. A) They are sold at lower prices than in other shops.8. D) To maintain friendly relationships with other shops.Section B9. B) They deliver pollutants from the ocean to their nesting sites.10. C) They travel as far as 400 kilometers in search of food.11. A) They were carried by the wind.12. C) The harm Arctic seabirds may cause to humans.13. A) It has decreased.14. B) It is now the second leading cause of death for centenarians.15. C) Their minds fail before their bodies do.Section C16. A) They are focused more on attraction than love.17. C) It is not love if you don’t wish to maintain the relationship.18. D) How the relationship is to be defined if any one is missing.19. A) Social work as a profession.20. B) They help enhance the well-being of the underprivileged.21. B) They all have an academic degree in social work.22. D) Social workers’ job options and responsibilities.23. A) To fight childhood obesity.24. D) They impress kids more than they do adults.25. C) Message positive behaviors at alltimes.。
题材:商业经济字数:930建议做题时间:15分钟Encyclopedic Knowledge, Then vs. Now百科全书知识的过去与现在This is the end of the line for Encarta, the encyclopedia(百科全书)that Microsoft introduced in 1993 and still describes on its Web site as “the No. 1 best-selling encyclopedia software brand for the past eight years.” Microsoft recently announced that sales would soon stop and that the Encarta Web site, supported by advertising, would be shut down later this year.Microsoft says sales of Encarta, its encyclopedia, will soon stop.It’s hard to look at the end of the Encarta experiment without the free and much larger Wikipedia springing immediately to mind. But Encarta would have failed even without that competition. The Google-indexed Web forms a virtual encyclopedia that Encarta never had a chance of competing against.Encarta was considered pre-Web and had a long decision-making process. In 1985, Bill Gates pictured a CD-ROM encyclopedia as a “high-price, high-demand” prod uct with the ability of becoming as profitable to Microsoft as Word or Excel. Microsoft tried unsuccessfully to get permission rights to Encyclopedia Britannica’s text, then World Book’s. It finally found a willing one in Funk & Wagnalls.Microsoft’s Encar ta team concentrated on developing non-text addition that would make it a multimedia show. The team developed illustrations and maps, an occasion and a map collection, put together and wrote description for 11,000 photographs and digitized eight hours of sound parts.Early in the project’s history, a focus group of future customers was asked together, and people said they would happily pay $1,000 to $2,000 for a multimedia encyclopedia on CD-ROM. But at the time, no one foresaw the collapse of prices in the information economy. When Encarta was finally ready, Microsoft set its price at $395, the same price as other CD-ROM encyclopedias that had beaten it to the market.Encarta sold poorly, gaining only 3 percent of the market six months after its release, according to Microsoft. But the leader was Compton’s, which sold its CD-ROM Interactive Encyclopedia, priced at $395, for just $129 to any customer who claimed to own a competing product. sellers did not ask to see proof, and the boxes flew off the shelf.Microsoft’s sales managers were in a chaos, begging the team to give them a “$99 Encarta.” The Encarta team gave in, but said it was to be only a temporary reduction for the holiday sales season. Martin Leahy, a Microsoft sales manager, told any colleague who would listen, “You realize, don’t you, the price is never going up again, right?” It never did.The $99 Encarta was a great success: it quickly sold 350,000 units, making it the best-selling CD-ROM encyclopedia by the end of that year. Its sales passed a million units the next year.In 2000, a free Web version, which included less than half the full version, was introduced; to get online access to the complete encyclopedia, one had to buy Encarta on CD-ROM or DVD. Online-only subscription(订阅)plans came later.Over time, the price of the product fell even more. Earlier this year, Microsoft sold Encarta as a downloadable product for $29.95; most recently, it was marked down to $22.95.I contacted some of the people who worked on Encarta during its early days to collect their thoughts. Gary Alt, who joined Microsoft in 1995 after working as an editor at World Book andat Encyclopedia Britannica, spoke with pride of the editorial work that he and his Encarta team had done. Fifty people—editors, fact-checkers and indexers—were on the team in 2000, at the peak of Microsoft’s editorial investment in Encarta, he said.That investment, however, seems to have gone unnoticed by Encarta’s users. Tom Corddry, a senior manager at Microsoft from 1989 to 1996 who headed up its multimedia publishing unit, said, “The editors overestimated the way students would say, ‘This has been carefully edited! And is very authoritative (权威的)!’”Encarta would have been discontinued long before now if it hadn’t extended its natural life span by finding a market in international spots beyond the reach of the Internet, Mr. Corddry said. “That bought Encarta some time,” he added.Encarta could not compete, however, against the Web and Google. The Google search engi ne is an automated(自动化的), continuously updated, always-expanding guide to information that is com pletely free. Authority now comes not from a small group of encyclopedia editors and famous contributors but from Google’s algorithms(运算法则), which analyze links that point to Web pages elsewhere and other clues to make an educated guess about trustworthiness.Google has effectively included millions of Web page authors, whose links serve as suggestions for the largest editorial board ever collected. Many Google search results start with a pointer to Wikipedia. This may have been what Microsoft had in mind when it explained Encarta’s closing this way: “People today seek and consume information in considerably different ways than in years past.”In 1985, when Microsoft was turned down by Britannica, the traditional wisdom in the encyclopedia business held that a sales force that knocked on doors was necessary, that encyclopedias were “sold, not bought.” Encarta showed that with a low-enough price — it was selling for $99 when Britannica introduced its own CD-ROM encyclopedia in 1994 for $995 —it could become the best-selling encyclopedia.But the triumph was short-lived. Microsoft soon learned that the public would no longer pay for information once it was available free. Other information businesses, of course, are now facing the same fact, but without the Windows and Office granting rights to fall back upon.(此文选自New York Times 2009年刊)1. According to the passage, Encarta refers to ________.A) Encyclopedia BritannicaB) Funk & WagnallsC) the encyclopedia that Microsoft introducedD) a much larger Wikipedia2. Bill Gates considered the CD-ROM encyclopedia as a “high-price, high-demand” product that would ________.A) sell successfullyB) get permission rights to Encyclopedia Britannica’s textC) develop illustrations and mapsD) be as profitable to Microsoft as Word or Excel3. What’s the performance of Encarta after its release within six months?A) It was a great success.B) It beat the competitors but earned little money.C) It got only a small percentage of market shares.D) It was the leader.4. Why did the sales managers of Microsoft beg the team to cut down the price to $99?A) Because they wanted a temporary reduction.B) Because they were in a chaos at the poor sales.C) Because it was a great success.D) Because they were facing the holiday sales season.5. How can web users of Encarta get access to the complete version of encyclopedia in 2000?A) They had to purchase the CD-ROM or DVD.B) They had to ask for a free version.C) They had to subscribe the online version.D) They had to download the product.6. According to the passage, what did Gary Alt feel towards the editing work of Encarta?A) He was ashamed of the editorial work.B) He was indifferent of the editorial work.C) He was careful of the editorial work.D) He was proud of the editorial work.7. According to the passage, where do the authority of Google search engine come from?A) From a small group of encyclopedia editors.B) From a large group of encyclopedia editors .C) From famous contributors.D) From Google’s algorithms.8. In spite of the fact that Google included millions of web page authors, however, many Google search results begin with ______.9. When Britannica sold its own CD-ROM encyclopedia for $995,Encarta was sold at a price of ________.10. After the short-lived triumph, Microsoft soon recognized that the public prefer ________.背景链接如今的网友仍然热衷于网上的免费资源,不是百度就是谷歌;专业一点的问题就上百度知道;学究一点的会光临一下维基百科全书这样的严肃但免费的网站。
英语四级考试考前模拟试题与解析Part I: Listening Comprehension (40 marks)Section A: Short Conversations1. M: Are you going to attend the lecture on environmental protection this afternoon?W: No, I have a history class at the same time.Q: What is the woman's reason for not attending the lecture?A: She has a history class at the same time.2. W: Excuse me, is this seat taken?M: No, it's not. Please have a seat.Q: What does the man mean?A: The seat is available.Section B: Passages3. W: How did you like the museum?M: Oh, it was fantastic! They had an exhibition of ancient Chinese artifacts.Q: What does the man think of the museum?A: He thinks it's fantastic.4. W: Why did you switch your major from engineering to psychology?M: I found myself more interested in studying the human mind and behavior.Q: Why did the man switch his major?A: He was more interested in studying psychology.Part II: Reading Comprehension (60 marks)Section A: Multiple Choice QuestionsPassage One5. According to the passage, what is a major benefit of studying abroad?A: Experiencing a different culture.Passage Two6. What is the main idea of the passage?A: The impact of social media on mental health.Section B: True or False StatementsPassage Three7. The Great Barrier Reef is known for its rich marine biodiversity.A: TruePassage Four8. The author suggests that reducing meat consumption is essential for protecting the environment.A: TruePart III: Vocabulary and Structure (40 marks)9. Emily is very _____ about saving money, so she never buys anything that she doesn't need.A: thrifty10. The book, _____ "The Catcher in the Rye," has been assigned for our English literature class.A: titledPart IV: Translation (20 marks)11. Translate the following sentence into English:昨天我和我的朋友们一起去了海边度假。
11. A) He doesn't like cheese in the cafeteria. B) He prefers his own cooking. C) The man's favorite is the chicken salad. D) He doesn't have any favorite food. 12. A) In a shop. B) In a bookstore. C) In a library. D) In a school. 13. A) Doctor and patient. B) Nurse and patient. C) Teacher and student. D) Father and daughter. 14. A) Because he was a man. B) Because he went to a right section. C) Because he was the person the job needed. D) Because he was the most outstanding person. 15. A) They are talking about clothes. B) They are talking about carpet. C) They are talking about curtain. D) They are talking about flowers. 16. A) Jobs are easier to find in the city. B) Living in the city is not expensive. C) Her job is in the city. D) She can go to the cinema every day. 17. A) His wife deposited some money. B) His wife also opened an account. C) His wife also spent some money. D) There is something wrong with the bank. 18. A) She bought a sweater in the end. B) She bought a blouse finally. C) She bought a skirt finally. D) She bought a coat in the end. Questions 19 to 21 are based on the conversation you have just heard. 19. A) He wants to buy a house. B) He wants to rent several rooms for himself. C) He wants to rent a furnished room for himself. D) He wants to buy several rooms in the house. 20. A) A house with no storeys. B) A free-standing house with three storeys. C) A detached house with three storeys. D) A semi-detached house with three storeys. 21. A) It's a lovely area. B) It's an area where there are Chinese people. C) It's an area where there are people from different places. D) It's a place that is very convenient. Questions 22 to 25 are based on the conversation you have just heard. 22. A) To see movies. B) To watch birds. C) To smell the roses. D) To paint model planes. 23. A) Play a role in a movie. B) Enjoy the pleasure of life. C) Earn more and more money. D) Save money for his children. 24. A) Stop working. B) See movies in leisure time. C) Take full advantage of life like kids. D) Earn money and give it to his children. 25. A) He has to consider money when he wants to keep his hobby. B) The more money he has, the happier he is. C) He can't earn more money unless he works more hours a day. D) He can appreciate money only when he earns it by himself. Section B Directions: 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 choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre. Passage One Questions 26 to 28 are based on the passage you have just heard. 26. A) Gathering non-relevant materials. B) Stealing another person's idea. C) Sharing notes with someone else. D) Handing in assignments late. 27. A) In the student's own words. B) In direct quotations. C) In short phrases. D) In shorthand. 28. A) It should be assimilated thoroughly. B) It should be enclosed in quotation marks. C) It should be paraphrased by the student. D) It should be authorized by the author. Passage Two Questions 29 to 31 are based on the passage you have just heard. 29. A) They read poetry aloud. B) They delivered a speech. C) They took objective tests. D) They discussed questions with expert in a particular field. 30. A) There are more candidates than before. B) The modern industry is developing slowly. C) The written examinations are much easier than before. D) The written examinations are more objective than the spoken ones. 31. A) The objective test always deals with the personal opinions. B) The objective test is timed exactly by electric clocks. C) The question of the objective test has only one correct answer. D) The objective test resembles a group of workers at an automobile factory. Passage Three Questions 32 to 35 are based on the passage you have just heard. 32. A) The history of Benjamin Franklin. B) The history of the U.S.mail. C) The changes of writing letters. D) The history of the U.S.. 33. A) To deliver the mail from Boston on horseback to its destination. B) To take charge of the mail for all the colonies in North America. C) To introduce the use of stagecoaches to carry mail. D) To deliver mail to the communities from railways by horse and wagon. 34. A) The British government. B) The American government. C) Benjamin Franklin. D) George Washington. 35. A) He established a government service. B) He developed a system called "star routes". C) He built a lot of post offices. D) He established the postal system.。
第⼀节(共5⼩题)听下⾯5段对话。
每段对话后有⼀个⼩题,从题中所给的A、B、C三个选项中选出选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关⼩题和阅读下⼀⼩题。
每段对话仅读⼀遍。
1.What does the woman imply?A.She didn’t clean the apartment.B.She’ll help the man clean his apartment.C.She needs to clean the lab.2. What does the woman mean?A.She saw the man run out.B.She thought the man’s laundry was done badly.C.She was sorry the man couldn’t finish his laundry.3. What does the man imply?A.His coach didn’t help him enough.B.He had no chance of winning.C.He didn’t follow his coach’s advice.4.What does the woman mean?A.She likes the new theatre in town.B.She expects the theatre to close down.C.She’s surprised by the news.5. What does the man say about the activities?A.They aren’t very good because they’re so different.B.He thinks they should do both.C.It doesn’t matter which one they do.第⼆节(共15⼩题)听下⾯5段对话或独⽩。
听力各题型全面解码(一) 从场景入手解读听力短对话.四级听力的表达相对比较固定,对话内容也有规律可循.掌握听力场景规律=未听先知纵观历年听力考试试题,我们精心总结、概括出四级听力段对话的十大经典场景,均为考试中最常见、最贴切、最有效的习惯表达,希望大家认真背诵,烂熟于胸!!!一、 学校场景*(新生)注册/选课z真题回顾as hard as expected (03-06-10) 同想象的一样难continue taking the course (05-01-02) 继续上课class(05-01-02) 放弃,不再上课thedropget a class permit (03-09-07) 得到听课证it meets too early (05-01-02) (课)开始得太早optional course (03-06-10) 选修课registration (03-09-07) 登记&锦囊妙计选课首先要enroll或register,有时要经professor 或advisor的同意;上课时间太早的class 或lecture 要drop;那些optional course总是分词hard;好的课程会open a new world。
*上课/听课z真题回顾a strong accent (03-06-03) 很重的口音(05-01-07) 班级名单classlist(03-06-03) 陈述presentationreading assignment (05-01-07) 阅读作业take the notes (03-06-03) 记笔记too complicated to understand (03-06-03) 太复杂,不能理解&锦囊妙计课上分派的assignment 总是会缺少几个copies,老师肯定没有extra准备;老师们不是accent重,就是speak快,总是让学生难以follow。
星火英语四级考前预测卷英文回答:Section 1: Reading Comprehension.Passage 1。
Read the following passage and answer the questions that follow.The rise of artificial intelligence (AI) is rapidly transforming the world as we know it. AI-powered technologies are being used in a wide range of industries, from healthcare to finance to manufacturing. While AI offers many potential benefits, it also raises important ethical and societal concerns.One of the most pressing ethical concerns is the potential for AI to exacerbate existing inequalities. AI algorithms are often trained on data that is biased, whichcan lead to discriminatory outcomes. For example, a study by the University of California, Berkeley found that AI algorithms used to predict recidivism rates were morelikely to classify black defendants as high-risk than white defendants, even when controlling for factors such as criminal history and socio-economic status.Another ethical concern is the potential for AI to be used for malicious purposes. For example, AI could be used to develop autonomous weapons systems that could be used to kill people without human intervention. AI could also be used to spread misinformation or propaganda, which could undermine democracy and social stability.In addition to ethical concerns, AI also raises important societal concerns. One concern is the potential for AI to displace workers. As AI-powered technologies become more sophisticated, they could automate tasks that are currently performed by humans. This could lead to widespread job losses and economic dislocation.Another societal concern is the potential for AI tocreate a surveillance state. AI-powered technologies could be used to collect and analyze vast amounts of data about individuals. This data could be used to track people's movements, monitor their communications, and even predict their behavior.Questions:1. What are some of the potential benefits of AI?2. What are some of the ethical concerns raised by AI?3. What are some of the societal concerns raised by AI?Section 2: Writing.Task 1:Write an essay in which you discuss the potential benefits and risks of AI. In your essay, be sure to consider the ethical and societal concerns raised by AI.Task 2:Write a proposal for a new AI policy. In your proposal, be sure to address the ethical and societal concerns raised by AI.Section 3: Listening.Task 1:Listen to a lecture on AI and take notes. In your notes, be sure to include:The key points of the lecture.Examples of AI technologies.Potential benefits and risks of AI.Task 2:Listen to a conversation between two people about AI.In your notes, be sure to include:The main points of the conversation.The arguments made by each person.Your own opinion on the conversation.中文回答:Section 1: 阅读理解。
【星火英语版】2016年6月大学英语四级真题参考答案Part ⅡListening Comprehension(听力部分共有两套)四级第一套Section A1. C) Rising unemployment worldwide.2. A) Many countries have not taken measures to create enough jobs.3. B) Put calorie information on the menu.4. A) They will be fined.5. D) Failure to integrate innovation into their business.6. B) It is the creation of something new.7. C) Its innovation culture.Section B8. D) He does not talk long on the phone.9. B) Talk at length.10. A) He thought it was cool.11. C) It is childish and unprofessional.12. B) He is unhappy with his department manager.13. A) His workload was much too heavy.14. C) His boss has a lot of trust in him.15. D) Talk to his boss in person first.Section C16. A) The importance of sleep to a healthy life.17. C) They get less and less sleep.18. D) Their blood pressure will rise.19. B) What course you are going to choose.20. D) The personal statement.21. C) Indicate they have reflected and thought about the subject.22. B) It was built in the late 19th century.23. D) They often broke down.24. A) They were produced on the assembly line.25. C) It marked a new era in motor travel.四级第二套Section A1. C) Why sufficient sleep is important for college students.2. C) Making last-minute preparations for tests may be less effective than sleeping.3. B) Whether the British irports Authority should sell off some of its assets.4. D) Lack of runway and terminal capacity.5. D) Report the nicotine content of their cigarettes.6. A) The biggest increase in nicotine content tended to be in brands young smokers like.7. B) They were not prepared to comment on the cigarette study.Section B8. A) Holland.9. D) Learning a language where it is not spoken.10. C) Trying to speak it as much as one can.11. A) It provides opportunities for language practice.12. B) Rules and regulations for driving.13.C) Make cars that are less powerful.14. D) They tend to drive responsibly.15. C) It is not useful.Section C16. D) The card reader failed to do the scanning.17. B) By covering the credit card with a layer of plastic.18. A) Produce many low-tech fixes for high-tech failures.19. A) They vary among different departments.20.D) By contacting the deparmental office.21. B) They specify the number of credits students must earn.22. C) Students in health classes.23. A) Its overemphasis on thinness.24. B) To explain how computer images can be misleading.25. C) To promote her own concept of beauty.Part Ⅲ Reading Comprehension四级第一套Section A26.O) tend27.M) review28.L) performance29.K) particularly30.N) survive31.E) dropping32.J) mutually33.H) flow34.F) essential35.I) moodSection B36.E)“We thought we would see differences based on thehousing types,” said the lead author of the study, Julie Robison, an associate professor of medicine at the university. ......37.L)Of course, sons and daughters want to visit the facilities, talk to the administrators and residents and other families, and do everything possible to fulfill their duties. ......38.B)Does assisted living really mark a great improvement over a nursing home, or has the industry simply hired better interior designers? ......39.H)An elderly person who describes herself as in poor health, therefore, might be no less depressed in assisted living (even if her children preferred it) than in a nursing home. ......40.N)The daughter feared her mother would be ignored there, and so she decided to move her into a more welcoming facility. Based on what is emerging from some of this research, that might have been as rational a way as any to reach a decision.41.J)As I was considering all this, a press release from a respected research firm crossed my desk, announcing that the five-star rating system that Medicare developed in 2008 to help families......42.F)In the initial results, assisted living residents did paint the most positive picture. They were less likely to report symptoms of depression than those in the other facilities, for instance, and less likely to be bored or lonely. They scored higher on social interaction.43.C)I am about to make things more complicated by suggesting that what kind of facility an older person lives in may matter less than we have assumed. ......44.I)Such findings, which run counter to common sense, have surfaced before. In a multi-state study of assisted living, for instance, University of North Carolina researchers found that a host of variables—the facility's type, size or age; ......45.G)But when the researchers plugged in a number of other variables, such differences disappeared. It is not the housing type, they found, that creates differences in residents' responses. ......Section C46. C) It can be avoided if human values are translated into their language.47.D) They are ill-bred.48. C) By picking up patterns from massive data on human behavior.49. B) Stop to seek advice from a human being.50. A) Determine what is moral and ethical.51. A) to see whether people's personality affects their life span52. D) They are more likely to get over hardship.53. C) Such personality characteristics as self-discipline have no effect on longevity.54. D) Mothers' negative personality characteristics may affect their children's life span.55. B) Longevity results from a combination of mental and physical health.四级第二套Section A26.G) growing27.A) dependent28.C) fast29.F) give30.H) launch31.N) successful32.I) policyl33.B) designed34.O) treatments35.E) gainedSection B36.D)As we begin to examine our life, Soupios says, we come to Rule No. 2: Worry only about things that you can control. ......37.B)The wisdom of the ancient Greek philosophers is timeless, says Soupios. The philosophy professor says it is as relevant today as when it was first written many centuries ago. ......38.F)To have a meaningful, happy life we need friends. But according to Aristotle—a student of Plato and teacher of Alexander the Great—most relationships don't qualify as true friendships. ......39.A) Is it possible to enjoy a peaceful life in a world that isincreasingly challenged by threats and uncertainties from wars, terrorism, ......40.L)“This is Aesop, the fabulist (寓言家), the man of these charming little tales, often told in terms of animals and animal re lationships,” he says. ......41.H)“This was the highest and most desirable form of pleasure and happiness for the ancient Epicureans,” Soupios says. “This is something that is very much well worth considering here ......42.C)Soupios, along with his co-author Panos Mourdoukoutas, developed their 10 golden rules by turning to the men behind that philosophy—Aristotle, Socrates, Epictetus and Pythagoras, ......43.K)Instead, Soupios says, ancient wisdom urges us to do good. Golden Rule No. 10 for a good life is that kindness toward others tends to be rewarded.44.B)The wisdom of the ancient Greek philosophers is timeless, says Soupios. The philosophy professor says it is as relevant today as when it was first written many centuries ago. ......45.J)“This is Hesiod, of course, a younger contemporary poet, we believe, with Homer,” Soupios says. “Hesiod offers an idea—which you very often find in some of the world's great religions,......Section C46. D) It usually draws different reactions from different age groups.47. A) It does not seem to create a generational divide.48. B) It helps with their mobility.49. A) The location of their residence.50. C) The wealthy.51. C) Their daily routine followed the rhythm of the natural cycle.52. B) It brought family members closer to each other.53. D) Pace of life.54. B) It is varied, abundant and nutritious.55. A) They enjoyed cooking as well as eating.四级第三套Section A26.M) provide27.A) abandoned28.I) frequent29.L) merely30.C) biased31.G) dependent32.F) dampens33.E) commitment34.N) understandably35.D) chancesSection B36.[F]In contrast, the recent surge in world grain prices is trend-driven, making it unlikely to reverse without a reversal inthe trends themselves.......37.[K]In response to those restrictions, grain-importing countries are trying to nail down long-term trade agreements that would lock up future grain supplies. ......38.[C]As demand for food rises faster than supplies are growing, the resulting food-price inflation puts severe stress on the governments of many countries. ......39.[L]Since the current world food shortage is trend-driven, the environmental trends that cause it must be reversed. We must cut carbon emissions by 80% from their 2006 levels by 2020, ......40.[B]I can no longer ignore that risk. Our continuing failure to deal with the environmental declines that are undermining the world food economy forces me to conclude that such a collapse is possible.41.[H]What about supply? The three environmental trends—the shortage of fresh water, the loss of topsoil and the rising temperatures—are making it increasingly hard to expand the world's grain supply fast enough to keep up with demand. ......42.[M]For many in the development community, the four objectives were seen as positive, promoting development as long as they did not cost too much. Others saw them as politically correct and morally appropriate. ......43.[J]As the world's food security falls to pieces, individual countries acting in their own self-interest are actually worsening the troubles of many. The trend began in 2007, when leading wheat-exporting countries such as Russia and Argentina limited or banned their exports, ......44.[L]Since the current world food shortage is trend-driven, the environmental trends that cause it must be reversed. We must cut carbon emissions by 80% from their 2006 levels by 2020, ......45.[G]As incomes rise among low-income consumers, the potential for further grain consumption is huge. But that potential pales beside the never-ending demand for crop-based fuels. A fourth of this year's U.S. grain harvest will go to fuel cars.Section C46. B) It weakens in one's later years.47. D) Some of them begin to decline when people are still young.48. C) They function quite well even in old age.49. D) can put what they have learnt into more effective use50. A) find ways to slow down our mental decline51. C) Scholars and policymakers have different opinions about it.52. A) Pre-K achievements usually do not last long.53. B) When it is made part of kids' education.54. D) She is a firm supporter of pre-K.55. C) Early intervention.Part Ⅳ Translation四级第一套功夫(Kung Fu)是中国武术(martial arts)的俗称。
英语四级模拟考答案解析答案解析Part ⅠWritingLiving alone or Living with RoommatesNowadays, there has appeared a heated discussion among the college students as to whether they should live alone outside the campus or live together with other roommates in the students’ dormitory. Opinions are divided over the matter.Those who are in favor of Living alone maintain that it is very convenient to live by themselves. They can enjoy absolute freedom in a room of their own. They can have their own timetable without disturbing others. They are also free to equip the room with a personal computer so that they can have easy access to the Internet.But others argue that living with roommates has attractions of its own. With several students sharing the same room, each person’s experienc es can be greatly enriched. They can learn a lot from talking to one another. By learning to tolerate the differences between individuals, they can become more mature.As far a s I’m concerned, I prefer to live with roommates because I love the feeling of belonging. Besides, it is a lot cheaper to live in a dorm than to rent a apartment outside the campus.独居或与室友的生活独居或与室友的生活如今,出现了高校学生之间的激烈讨论是否应独居校外或住在一起的室友在学生宿舍。
大学英语四级模拟题四Part One Reading Comprehension (2’×10 = 20’)Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice and mark the corresponding letter on the Answer Sheet with a single line through the centre.Passage OneAir pollution can spread from city to city. It even spreads from one country to another. Some northern European countries have had “black snow”from pollutants that have traveled through the air from other countries and have fallen with the snow. So air pollution is really a global problem.Air pollution can kill babies, older people, and those who have respiratory(呼吸的)diseases. As found in cities, air pollution increases the risks of certain lung diseases.Air pollution can cause both airplane and car accidents because it cuts down visibility (能见度). There are other possible health dangers from air pollution that we don’t know much about. For example, scientists are trying to find out whether chemicals that reach us from the air may cause changes in our cells. These changes might cause babies to be born with serious birth defects. Scientists are trying to learn how all the many chemicals are apt(易于的)to take into our bodies from air, water, food, and even medicines act together to affect our health and the way our bodies work. That is another reason why it is so important to begin to control pollution now instead of waiting until we learn all the answers.Air pollution costs us a lot of money. It corrodes(腐蚀)our buildings. It damages farm crops and forests. It has a destructive effect on our works of art. The cost of all this damage to our government is great. It would be much more worthwhile, both for us and for the government, to spend our tax dollars on air pollution control.1. Air pollution may lead to airplane accidents because .A. it may cause pilots to be illB. engines may fail from the air-borne dirtC. visibility is reducedD. it brings a lot of black snow2. Scientists are trying to find a link between pollution and .A. intelligence levelsB. birth problemsC. man’s behaviorD. the nervous system3. Scientists have not yet determined .A. all of the effects of pollution on the human bodyB. how pollution can be controlled successfullyC. when the atmosphere first became pollutedD. how some snow becomes black4. The author suggests that before air pollution becomes more serious, .A. factories will be forced to stop operatingB. buildings should be protectedC. the earth will begin to grow colderD. more money should be spent to solve the problem5. We can conclude that .A. civilization may be ruined if pollution is not controlledB. pollution is more serious in Europe than it is in AmericaC. most people do not know that pollution is a serious problemD. we should learn all the answers before we begin to control pollutionPassage TwoStiletto heels could be banned from the workplace because of health and safety reasons, according to British Trade Union bosses. The Trade Union Congress, predominantly male, has proposed a motion arguing that high heels are disrespectful to women while they also contribute to long term injuries. They propose instead that women wear “sensible shoes”with an inch heel limit in an attempt to avoid future foot and back pain as well as injuries. The motion is due to be debated at next month’s conference. The motion states: “Congress believes high heels may look glamorous on the Hollywood catwalks but are completely in appropriate for the day-to-day working environment. Feet bear the burden of daily life, and for many workers prolonged standing, badly fitted footwear, and in particular high heels can be a hazard. Around two million days a year are lost through sickness as a result of lower limb disorders. Wearing high heels can cause long-term foot problems and also serious foot, knee and back pain and damaged joints. Many employers in the retail sector force women workers to wear high heels as part of their dress code. More must be done to raise awareness of this problem so that women workers and their feet are protected.”Nadline Dorries, the Tory Member of Parliament, however criticized the motion and said the extra height heels give women can help them when in the workplace. “I’m 5ft 3in and need every inch of my Christian Louboutin heels to look my male colleagues in the eye,”she said. “If high heels were banned in Westminster, no one would be able to find me. TheTrade Union leaders need to get real, stop using obvious sexist tactics by discussing women’s stilettos to divert tension away from Labor chaos.”Michelle Dewberry, a former winner of The Apprentice, said the motion was patronizing (自认为高人一等的). “This is absolutely ridiculous and I think these union officials should be spending their time dealing with more important issues”, she said. “I’m at work in five-inch heels and perfectly able to do my job. Heels are sexy, they boost your confidence and they are empowering to women. I can’t imagine these officials debating a motion about how tightly men should wear their ties. Wearing heels is a personal choice.”6. Which of the following best explains what stiletto heels are?A. Very high heels that women wear.B. Shoes with an inch heel limitC. High heels most appropriate for catwalks.D. Shoes most suitable for retailsector worker7. Why do the Trade Union leaders propose to ban stiletto heels from the workplace?A. Because they don’t want to have the workplace look like Hollywood.B. Because they think the stiletto heels give women excuse to ask for a sick leave.C. Because the shoes are believed to be harmful to people’s health.D. Because they hold the idea that women themselves should decide what to wear.8. Why did Nadline Dorries criticize the motion?A. Because she feels the extra height helps people to find her.B. Because she feels the extra height improves her vision.C. Because she feels the extra height adds to her personal charm.D. Because she feels the extra height makes her more confident.9. What is Michelle Dewberry’s opinion on the motion?A. The union leaders should mind their own business.B. Women are perfectly able to decide what to wear.C. Union officials shouldn’t have debates on any motions.D. Women will never be hurt wearing the stiletto heels.10. What can you infer from the passage?A. Union leaders care about women employees very much.B. Women think differently from male union leaders.C. There is going to be a heated debate over this motion.D. Height means power and confidence at workplaces.Part Two Listening Comprehension (35’)Section A (1’×15 = 15’) Directions: 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 with a single line through the centre.11.A. Invite four people to dinner.B. Book a corner table for six.C. Give a birthday party in the restaurant.D. Book a table for four people at 6:00.12.A. Teacher and student. B. Patient and doctor.C. Customer and waiter.D. Husband and wife.13.A. Walking. B. Sightseeing.C. Driving.D. Shopping.14.A. The man lives in New York.B. The man enjoys his trip.C. The man is going to phone the woman.D. Someone is waiting for him.15.A. She will decide later.B. She doesn’t care for either.C. She doesn’t want to go out.D. She wants the man to decide.16.A. Frank’s car was accidentally lost.B. Frank was killed in a car accident.C. Frank fell out of a car.D. Frank survived a car accident.17. A. At 8:30. B. At 9:00.C. At 9:10.D. At 10:00.18. A. Coming back for a later show.B. Waiting in a queue.C. Coming back in five minutes.D. Not going to the movie today.Conversation OneQuestions 19 to 22 are based on the conversation you have just heard.19. A. 80 pounds a month.B. 100 pounds a month.C. Ranging from 80 to 100 pounds a month.D. 180 pounds a month.20.A. 2 bedrooms with the kitchen and dining room separated or combined.B. 2 bedrooms with kitchen and dining room separated.C. 2 bedrooms with kitchen and dining room combined.D. 2 bedrooms without the kitchen and dining room.21. A. 0.5 mile.B. 1 mile.C. 1.5 miles.D. 2 miles.22. A. Look for more houses that might meet their needs.B. Go to the ideal house and have a look.C. Talk with their parents about the rental fees.D. Sign the contract terms.Conversation TwoQuestions 23 to 25 are based on the conversation you have just heard.23. A. Their different plans for summer vacation.B. A vacation without the sea.C. The silver beams of the moon reflected on the ocean.D. A group of tourists going to the mountain every summer.24. A. To go swimming every day.B. To stay in the mountains as usual.C. To go to the seaside.D. To enjoy the silver beams of the moon.25. A. He likes swimming.B. He will still go to the mountains this summer.C. He doesn’t want to go to the seaside.D. He will go to a seaside city alone.Section B (1’×10 = 10’) Directions: In this section, you are going to hear three short passages. At the end of each passage, you will hear some questions. Both the passages and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer sheet with a single line through the centre.Passage OneQuestions 26 to 28 are based on the passage you have just heard.26 A. Lack of confidence.B. Lack of intelligence.C. Carelessness.D. Absent-mindedness. 27 A. To accompany his children on a train ride.B. To have a holiday with his children on the beach.C. To take his children to visit a friend of his in a seaside town.D. To stay at home and take care of his children.28 A. He could not find his children at the station.B. He could not find the piece of paper his wife gave him.C. He forgot the phone number of his home.D. The train had already gone.Passage TwoQuestions 29 to 31 are based on the passage you have just heard.29 A. She told Peter to buy her an inexpensive gift.B. She told Peter not to buy her a gift.C. She told Peter to buy her an expensive gift.D. She told Peter not to buy any gift but write her a letter.30 A. The history and grammar of languages.B. Everyday use of language.C. Homes, work, coffee shops, elevators, and supermarkets.D. The relationship between people.31 A. The differences between the way men and women travel to different places.B. The differences in the way people treat others’ conversation.C. The differences between the way men and women communicate.D. The differences in the way people from different geographic areas behave.Passage ThreeQuestions 32 to 35 are based on the passage you have just heard.32 A. He listens to music and makes music himself.B. He listens to music from early in the morning till late at night, at home and at school.C. He goes to discos, parties and concerts frequently.D. He listens to music while he is having breakfast and doing homework.33 A. It makes young people neglect their studies.B. It causes clashes between parents and their teenage children.C. It is often too loud.D. It is often linked to young people taking drugs.34 A. Steve would take drugs.B. Steve’s hearing would be damaged someday.C. Steve would sooner or later get mixed up with some evil guys.D. Steve would become self-centered.35 A. Music has become a very important part of life for children and adults.B. Whether music is good or not to people depends on how it is used.C. Teenagers nowadays spend less time on their studies than listening to music.D. Music has more negative effects than positive effects on teenagers. Section C (10’) Directions : In this section, you will hear a passage three times. When the passage is read for the first time, you should listen carefully for its general idea. When the passage is read for the second time, you are required to fill in the blanks numbered from 36 to 43 with the exact words you have just heard. For blanks numbered from 44 to 46 you are required to fill in the missing information. For these blanks, you can either use the exact words you have just heard or write down the main points in your own words. Finally, when the passage is read for the third time, you should check what you have written. (请写在答题纸上) Advertising is a way of bringing (36) to the public for the purpose of selling a product, a service, an idea, or an (37) . The information is transmitted by means of (38) ___________ word or over the air. It may be presented as a simple (39) ____________ of fact, or as more often, it may be offered in colorful or even (40) language. All advertising is intended to stimulate people to do some (41) __________ things, such as buy a product, order a service, join an organization, or (42) ___________ a meeting and so on. Each advertisement is paid for by a person, a group, an organization, or a (43) ___________ enterprise seeking to advance his or her goals. In a modern society, everyone uses advertising in one way or another. A person may obtain a job by answering a classified ad, or sometimes called a small ad. It is placed in a newspaper by those wishing to sell or buy something, lease or rent something, offer or get employment, etc. (44) _____________________ whose advertisements express ideas that attract him. In choosing food products and other items of daily living, he is usually guided or influenced by advertising. (45) ___________________________. Advertising has certainly played an important part in making modern goods and services available to the general public, it hastened consumer ’s acceptance of such new products as cars, telephones, electric refrigerators, and frozen foods. (46) ___________________________________. Part Three Vocabulary and Structure (0.5’×20 = 10’) Directions: There are 20 incomplete sentences in this part. For each sentence 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 Sheet with a single line through the centre. 47. Isn ’t this straw hat beautiful? My wife ________ it on her business trip to China last year. A. runs into B. came upon with C. came upon D. comes across 48. The spokesman was merely given a _____ version of the document, so he didn ’t know much about the details.A. condenseB. condensedC. condensingD. condensable 49. To be granted a substantial yearly bonus (奖金)is considered ________ to getting a raise in pay. A. comparison B. comparative C. comparably D. comparable 50. The boss ________ him that she had no plan to let him go. A. insured B. ensured C. assured D. sured 51. Plenty of football and basketball clubs are eager to________ young athletes if they showgreat promise. A. smash B. sponsor C. steer D. spur 52. _________ fired, your health care and other benefits would not be immediately cut off. A. Would you be B. Should you be C. Could you be D. Might you be 53. Anyone without patience and _________ is unlikely to make a good researcher. A. persistence B. consist C. consistence D. persist 54. The new secretary has written a remarkably ________ report within a few hundred words but with all the important details included.A. briskB. preciseC. elaborateD. concise 55. He returned to his hometown so that he could ________ his passion for football. A. indulge B. break C. limit D. obsess 56. From all the indications, it is safe to ________ that the prices of cars will go down by large margins. A. consume B. assure C. resume D. assume57. He tried to explain the complicated theory to me, but I got even more _______ by the technical terms in his explanation. A. encouraged B. confused C. imported D. convinced 58. As the clouds drifted away, an even higher peak became_______ to the climbers. A. evident B. apparent C. visible D. obvious59. She wants to drop out of college and become a singer, but her parents _______ very muchon her intention.A. frownB. emphasizeC. disapproveD. focus60. A peculiarly pointed chin is her most memorable facial _______. A. mark B. feature C. appearance D. trace61. I have bought so many new books this year that it ’s really difficult for me to keep _______ of them.A. accountB. recountC. constantD. count62. The theories of relativity have made _______ changes in our views of the universe.A. fundamentalB. ambitiousC. linguisticD. respective63. The lady dressed in the latest Paris fashion is _______ in her appearance but rude inher speech.A. excessiveB. elaborateC. elegantD. exaggerated64. The failure of the movie hastened her decision to _______ from the glamorous screen andspend more time with her family.A. retreatB. resignC. rejectD. replace65. Our _______ talks promise a good future for our cooperation.A. exteriorB. initialC. interiorD. invisible66. There is much I enjoy about the changing seasons, but my favorite time is the _______from fall to winter.A. transmissionB. transformationC. transitionD. transfer Part Four Banked Cloze (1’×10 = 10’)Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. You may not use any of the words in the bank more than once. (请在答题纸上写单词的代号)Ivory Soap is an American institution, about widely recognized as the Washington Monument and far more well respected than Congress. It had already (67) ____________ this noble status when Theodore Roosevelt was still a rough-riding cowboy in North Dakota. Introduced in 1879 as an (68) ____________ white soap intended to rival the quality of (69) ____________ soaps, it was mass marketed by means of one of the first nationwide advertising (70) ____________. People were told that Ivory was “so pure that it floats,”and the notion took (71) ____________. As a result, at least half a dozen generations of Americans have gotten themselves clean with Ivory.So many hands, faces, and baby bottoms have been washed with Ivory that their numbers (72) ____________ the imagination. Not even Proctor & Gamble knows how many billions of (73) ____________ of Ivory have been sold. The company keeps a precise count, (74) ____________, of the billions of dollars it earns. (75) ____________ sales of Ivory Soap, Ivory Snow, Crest toothpaste, Folger’s coffee, and the hundreds of other products now marketed under the Proctor & Gamble umbrella (76) ____________ thirty billion dollars.Part Five Translation (写在答题纸上)( 2’×5 = 10’)Directions: Complete sentences by translating into English the Chinese given in brackets.77. If you do have financial difficulties, __________ (你可以申请学生贷款).78. His mother insisted that __________ (他每月的零花钱不能超过100元).79. His first debate on TV __________ (给听众留下了深刻的印象).80. It’s one thing to understand the principle, __________ (要付诸实践又是另外一回事).81. We bought a car last month, __________ (是用我的名字登记的).Part Six Writing ( 15’ ×1=15’)Directions: For this part, you are required to write a short essay on the topic Graduates’Cost in Job-hunting. You should write at least 120 words (no more than 150 words) based on the topic sentence for each paragraph:1.大学生的求职花费逐年增高2.分析原因3.我的观点(注:作文写在答题纸上)大学英语四级模拟题四答案Part One Reading Comprehension (2’×10 = 20’)1-5 C B A D A 6-10 A C D B CPart Two Listening Comprehension (1’×25+0.5×8+2×3 = 35’)11-15 D C C B D 16-20 D C A C A 21-25 A B A C A 26-30 D B B B B 31-35 C D D B B 36. information 37. event 38. printed 39. statement40. emotional 41. specific 42. attend 43. business44. A person may decide to join an organization.45. Advertisements may also influence his choice of a vacation spot, hotel, etc.46.It seeks to make each product represent a new and better way of life.Part Three Vocabulary and Structure (0.5’×20 = 10’) 47-51 C B D C B 52-56 B A D A D 57-61 B C A B D 62-66 A C A B CPart Four Banked Cloze (1’×10 = 10’)67-71 A I G L O 72-76 D K C M JPart Five Translation ( 2’×5 = 10’)77.you can apply for a student loan.78.his pocket money (should) not exceed 100 yuan per month.79. made / left a deep impression on his audience.80. it’s another thing to put it into practice.81. which was registered under my name / and it was registered under my name.Part Six Writing ( 15’×1=15’) Open.。
欢迎来主页下载---精品文档 精品文档 Model Test Part Ⅰ Writing (30 minutes) Directions: For this part, you are allowed 30 minutes to write a short essay entitled The Decrease of Public Transportation Ticket Fare. You should write at least 120 words following the outline given below: 1. 近来一些城市政府实施多项举措降低公共交通票价,大力发展公共交通; 2. 此措施带来的好处; 3. 作为市民应如何响应政府的号召。 The Decrease of Public Transportation Ticket Fare
The Debate Over Genetically Modified Foods For thousands of years farmers have used a process of selection and cross breeding to continually improve the quality of crops. Traditional breeding methods are slow, requiring intensive labor: while trying to get a desirable trait in a bred species, undesirable traits will appear and farmers must continue the process over and over again until all the undesirables are bred out. In contrast, organisms acquire one specific gene or a few genes together through genetic modification, without other traits included and within a single generation. However, this technology too is inherently unpredictable and some scientists believe it can produce potentially dangerous results unless better testing methods are developed. Traditional breeding is based on sexual reproduction between like organisms. The transferred genes are similar to genes in the cell they join. They are conveyed in complete groups and in a fixed sequence that harmonizes with the sequence of genes in the partner cell. In contrast, bioengineers isolate a gene from one type of organism and collect it randomly into the DNA of a dissimilar species, disrupting its natural sequence. One of the main differences between conventional and genetically modified crops is that the former involves crosses either within species or between very closely related species. However, GM crops can have genes from closely related species or even from bacteria and viruses. Benefits: one side of the debate Economical? GM supporters tell farmers that they stand to reap enormous profits from growing GM crops. It takes a shorter time to produce the desired product. It is precise and there are no unwanted genes. To produce the GM crops, modern biotechnology is used which requires highly skilled people and sophisticated and expensive equipment. Large companies need considerable investments in laboratories, equipment and human resources, hence the reason why GM crops are more expensive for farmers than traditional crops. Herbicide-resistant crops So what other advantages do GM crops hold for farmers? GM crops can be produced to be herbicide (除草剂) resistant. This means that farmers could spray these crops with herbicide and kill the weeds, without affecting the crop. In effect, the amount of herbicide used in one season would be reduced, with a subsequent reduction in costs for farmers and consumers. Biotechnology companies are even experimenting with crops that can be genetically modified to be drought and salt-tolerant, or less reliant on fertilizer, opening up new areas to be farmed and leading to increased productivity. 欢迎来主页下载---精品文档 精品文档 However, the claims of less herbicide usage with GM crops have till now not been independently supported by facts. Better quality foods Even animals can be genetically modified to be leaner, grow faster, and need less food. They could be modified to have special characteristics, such as greater milk production in cows. These modifications again lead to improved productivity for farmers and finally lower costs for the consumers. Modified crops could perhaps prevent outbreaks such as foot and mouth disease, which has badly influenced many farmers and local economies. No such products have been released to date; however, some are under consideration for release. For example, GM salmon, capable of growing almost 30 times faster than natural salmon, may soon be approved by the FDA (Food and Drug Administration) in the U.S. for release into open waters without a single study on the impact on human health or the environment. Risks: the other side of the debate Environmental damage The problem with GM crops is that there is little known about what effect they will have in, say, 20 years time. The genetic structure of any living organism is complex and GM crop tests focus on short-term effects. Not all the effects of introducing a foreign gene into the complex genetic structure of an organism are tested. Will the pests that a crop was created to resist eventually become resistant to this crop? Then there is always the possibility that we may not be able to destroy GM crops once they spread into the environment. Risk to food web. A further complication is that the pesticide produced in the crop may unintentionally harm creatures. GM crops may also pose a health risk to native animals that eat them. The animals may be poisoned by the built-in pesticides. Tests in the U.S. showed that 44% of caterpillars (毛虫) of the monarch butterfly died when fed large amounts of pollen(花粉)from GM corn. Disease. Another concern is disease. Since some crops are modified using the DNA from viruses and bacteria, will we see new diseases emerge? What about the GM crops that have antibiotic-resistant marker genes? Marker genes are used by scientists to determine whether their genetic modification of a plant was successful. Will these antibiotic-resistant genes be transferred to microorganisms that cause disease? We already have a problem with ineffective antibiotics. How can we develop new drugs to fight these new bugs? Until further studies can show that GM foods and crops do not pose serious threats to human health or the world's ecosystems, the debate over their release will continue. Living organisms are complex and tampering with their genes may have unintended effects. It is in our common interest to support concerned scientists and organizations, such as Friends of the Earth who demand required labeling of these food products and independent testing for safety and environmental impacts. 1. What is the main difference between conventional breeding and genetic breeding? A) The former is based on sexual reproduction between like organisms while the latter can have genes even from bacteria and viruses. B) The former is unpredictable while the latter is predictable. C) The former is applied by farmers while the latter by scientists. D) The former has a long history while the latter a short one. 2. Which of the following is the possible benefit of GM crops?