限时阅读2

限时阅读---45mins②第一节阅读理解(共20小题；每小题2分，满分40分)阅读下列短文，从每题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。

AEat nuts, live longer. Researchers have found that those who eat a handful of peanuts every day significantly decrease their risk of dying from all causes compared to those who do not eat nuts. A new study concludes that all types of nuts seem to be protective.Researcher Ying Bao is with the Department of Medicine at Brigham and Women’s Hospital and Harvard University Medical School in Boston, Massachusetts. She and her colleagues looked at the impact of nut consumption by analyzing two huge studies that began in 1980 - the Nurses’ Health Study, which tracks the well-being of more than 76,000 women, and 42,000 men enrolled in the Health Professionals Follow-up Study.Among the questions asked at the beginning of the studies was, 'how frequently do you eat nuts?' The information was updated every two to four years. Bao says the participants were followed for three decades.―What we observed is that people wh o eat more nuts are less likely to die over the next 30 years," said Bao. "So, for example, if a person eat(s) nuts once per day, that person has a 20 percent lower risk of dying.‖Bao says eating a handful of nuts five or more times per week was associated with a 29 percent reduced risk of dying from heart disease and an 11 percent lower risk of cancer death. A serving size is 28 grams.Nuts contain nutrients, including high quality proteins, vitamins and minerals, all of which have anti-cancer effects and may help protect the heart.Bao says researchers are planning studies to find out how nuts are beneficial to human health.The study on the health benefits of nuts was funded by the International Tree Nut Council Research and Education Foundation.26. People who often eat nuts ________.A. A. are more likely to live longer than people who often eat fruitsB. don’t need to go to hospitalB. C. may live longer than people who don’t eat nuts D. don’t have to do sports27. The unde rlined word ―well-being‖ in Paragraph 2 shares the same meaning as ―________‖.A. A. illness B．health C．diet D．habit28. About Bao’s research, which statement is true?A. A. She has done the research by herself.B. Her research was based on two studies.B. C. Her research lasted about three years. D. People should eat all kinds of nuts every day.29. Eating nuts may help us stay away from ________.A. A. cancer B．fever C．flu D．headache30. The passage is most probably from a journal of ___________ .A. A. entertainment B．diet C．sports D．scienceBArtie Shaw was born in New York City in 1910. His name was Arthur Arshawsky. His parents were poor immigrants who had come to the United States from Eastern Europe. His family later moved to New Haven, Connecticut.At the age of fourteen, he began to play the saxophone and then the clarinet. From a very young age, Artie Shaw wanted to play his clarinet better than anyone. He wanted his sound and music to be perfect. He worked at this task much of his life.He began working as a professional musician when he was fifteen. He left home and began playing in bands across the United States.In 1928, young Artie Shaw traveled to Chicago, Illinois to hear the great trumpet player, Louis Armstrong. He immediately understood that Armstrong's great jazz sound was the beginning of something new and exciting. Artie left Chicago with a growing interest in jazz music. Soon after, he moved to New York City.He got work playing the clarinet for the Columbia Broadcast System radio network. In 1936, he was given a chance to form a small group and play at New York's famous Imperial Theater on Broadway. Hisgroup was not the top band in the show. But the crowd loved his music. This proved to be a major step in his career.Artie Shaw was always trying something new, something different. He heard a young black woman sing and hired her for his band. This was the first time that a black woman sang with white musicians. Racial separation was the rule in many states. Artie Shaw did not care.Artie Shaw wrote several books in his later years. He wrote stories for magazines. He spoke about music at colleges and universities. But he had very little to do with the world of recording or music. During those years however, he received many awards and honors for his music. These included a Hall of Fame award from the National Academy of Recording Arts and Sciences.31. When he was very young, Artie Shaw was ________.A. A.born to a wealthy family B．a famous singerC．a man with a great dream D．was in love with music when he was a baby32. To achieve his music dream, Artie Shaw ________.A. A. first began to play the clarinetB. wanted to be the most famous musician around the worldB. C. began playing in bands across the United StatesC. D. became a famous musician when he was fifteen33. When Artie Shaw became an adult, ________.A. A. he showed a growing interest in jazz musicB. B. he worked for Columbia Broadcast System radio network as a singerC. C. he formed a small band when he was twenty threeD. D. he thought that racial separation should be the rule of the society34. In his later years, Artie Shaw ________.A. A. almost stopped playing musicB. worked for a magazine as an professional writerB. C. he made many speeches about his life at collegesC. D. he received many awards and honors for his books35. Which one can be the title of the passage?A.Artie Shaw’s Life Stories B．Artie Shaw — A Crazy MusicianC．Artie Shaw — A Great Writer D．Artie Shaw’s Music L ifeCThe illegal ivory trade has been a major problem in Africa for decades. Poachers(偷猎者) and hunters have killed off hundreds of thousands of elephants to obtain this precious material. Now, affected areas are taking action. The International Union for Conservation of Nature (IUCN) announced on Wednesday that key states where poaching takes place have promised to stop the ivory trade and protect Africa’s elephants.In the 1980s, as many as 1 million elephants across Africa were killed for their ivory tusks. This continued until 1989, when the Convention on International Trade in Species (CITES) voted to ban all trade in ivory. With trade choked off, demand for ivory fell. Elephant populations slowly began to increase. However, this progress was short-lived.According to the IUCN, 2011 saw the highest levels of poaching and illegal ivory trading in at least 16 years. Around 25,000 elephants were killed in Africa that year. Preliminary data from the IUCN shows even higher levels of illegal trade may have b een reached in 2013. ―With about 22,000 elephants illegally killed in 2012, we continue to face a critical situation,‖ said John E. Scanlon, CITES Secretary-General. ―Current elephant poaching in Africa remains far too high, and could soon lead to local extinctions if the present killing rate continues.‖At the African Elephant Summit, key African states where elephants make their home agreed to develop a ―zero-tolerance attitude‖ towards poaching. The deal calls for maximum sentences for poachers and hunters, and increased cooperation between affected states. Officials are determined to classifying wildlife trading as a serious crime — and to making sure that the people who commit it are punished. All participants at the conference agreed to sign the deal. With these states coming together, there may yet be hope for elephants. (293 words)36. What’s the best title for this passage?A. A. New Hope for Elephants.B. Elephants are dying.C. Elephants are valuable.D. How to protect elephants37. The un derlined phrase ―choked off‖ in Paragraph 2 can be replaced by ―________‖.A. appreciatedB. preventedC. admittedD. explored38. Which of the following statements is NOT true according to the passage?A. A. The CITES has helped to improve e lephants’ situation ever since 1989.B. B. Around one million elephants across Africa were killed for their ivory tusks in the 1980s.C. C. The poaching and illegal ivory trading in 2011 were very serious.D. D. The situation of elephants in 2012 was still terrible.39. All of the following measures will be taken to protect elephants EXCEPT ________.A. to identify wildlife trading a serious crimeB. to punish those who buy or sell wildlife belongingsC. to sentence all wildlife poachers and hunters to deathD. to work together to fight against wildlife hunting40. What’s the main idea of this passage?A. A. The illegal ivory trade has been a major problem in Africa.B. B. Elephants in Africa may die out because of the illegal poaching.C. C. Hunting elephants will be recognized as a very serious crime.D. D. A new agreement aims to develop a ―zero-tolerance attitude‖ towards poaching.DStudies show farmland in Africa is often lacking in important nutrients. But researchers say combining different farming methods may help.Since the world food crisis several years ago, researchers have directed more of their attention to small farms. Most farms in areas south of the Sahara Desert are only about one or two hectares. One of the goals is to increase production without necessarily clearing more land to grow additional crops.American researchers say that can happen with greater use of an agricultural system called perennation. It mixes food crops with trees and perennial plants – those that return year after year.Mr. Reganold, who is with Washington State University, says poor soil may have resulted from years of weathering that washed away many nutrients. He says some farmers may have done more harm than good.He estimates that up to two billion dollars worth of nitrogen, phosphorous and potassium is lost from African soil each year.The scientist says the word perennation defines three systems that are already used in Africa. The oldest of the three is called evergreen agriculture. This is where farmers plant trees with their crops. John Reganold says farmers in Africa have been doing this for sixty years, but it seems to be growing in popularity.The method is gaining widespread use in countries such as Niger, Burkina Faso, Malawi and Zambia. The trees are planted among maize, millet or sorghum crops. They not only add nitrogen to the soil through their roots, but also through their leaves when they fall off and break down. At other times of the year, the trees can protect plants from strong sunlight.Mr. Reganold was one of three researchers who wrote a report about perennation. It was published in the journal Nature.41. Farmland in Africa ________.A. A. is often small in sizeB. can produce more than enough crops for AfricansB. C. is short of important nutrients D. has got the attention of scientists around the world42. Researchers focused their attention on small farmlands for the reason that ________.A. A. Africa was going through a food crisisB. most farms in areas south of the Sahara Desert aresmallB. C. there are not enough farmlands D. farmers may grow additional crops on farmland43. The word―perennation‖mentioned in this passage ________.A. is a farming method of planting food crops with treesB. is a new farming methodC. can help African people produce more food than they needD. is gaining widespread use around the world44. We can infer from the passage that ________.A. A. perennation will be widely used by farmers in AfricaB. B. American government will help African countries increase food productionC. C. African countries is short of farmlandD. D. some farmers are destroying their farmland in Africa on purpose45. This report is mostly likely to be a journal of ________.A. A.food B．environment C．agriculture D．gardening第一节完形填空(共15小题；每小题2分，满分30分)Some passengers won’t turn off their mobile phones or iPads during takeoff or landing. It happens on almost every 1 now. It’s time to turn off personal electronic devices when the plane’s door 2 . However, there’s alway s at least one person who keeps talking, texting, playing, watching or emailing — and 3 strict orders to power down during flights.―People have become so 4 to those devices, and a lot of people 5 whether they really need to turn them off,‖ says an airhostess from Southwest Airlines.Is turning off the devices really 6 in the first place? Lots of passengers have doubted about the 7 of leaving devices on. They think one cell or message or game isn’t going to 8 down the plane.Indeed, there’s no 9 scientific evidence that having devices powered on during takeoff and landing would cause a 10 , only that there is the potential of a problem.In the US, pilots are allowed to use certain electronic devices during takeoff and landing, but if passengers’11 devices are tested at the same time, it may lead to wrong warnings and 12 readings on the aircraft instruments. In some studies researchers found mobile phones could 13 global-positioning satellite systems or other aircraft systems. Though the effects are 14 slight, they could result in disaster.If even the 15 possibility of disaster exists, it’s better to turn them off during takeoff and landing.1. A. seat B. flight C. passenger D. device2. A. opens B. closes C. turns D. moves3. A. giving B. obeying C. ignoring D. receiving4. A. addicted B. connected C. opposed D. exposed5. A. decide B. choose C. understand D. question6. A. reliable B. necessary C. dangerous D. excellent7. A. fact B. value C. danger D. price8. A. knock B. bring C. shut D. fall9. A. large B. great C. firm D. heavy10. A. problem B. difficulty C. question D. mistake11. A. small B. expensive C. various D. colorful12. A. clear B. right C. bad D. false13. A. affect B. operate C. control D. change14. A. unusually B. strangely C. exactly D. seemingly15. A. remotest B. biggest C. best D. worst第二节语法填空(共10小题，每小题1.5分，满分15分)Buying books on the Internet is a great way to save time and money. Online bookstores offer new books and used books that can save you a lot of money. What’s more, they are far better 16 (compare) to traditional bookstores as they offer much broader kinds of books. You can either click the kind of e-books online 17 type the book title and get it in seconds. Another advantage of shopping online 18 (be) that you can also read the book reviews as well as readers’ reviews to get an idea 19 the book is worth buying. Online bookstores offer great discounts, 20 is a big attraction for book lovers.For book lovers, 21 is most important to get books in time. Therefore, you need to find 22 reliable online bookstore that will be able to provide fast deliveries.Here are some tips to use when selecting an online bookstore. Some online bookstores are popular for fiction books; some are 23 non-fiction books or novels, etc. Understanding their specialization will help you to get the right kinds of books in time. Check whether you will be buying the books from a third-party seller or 24 (direct) from the websites. Never jump at stores that offer super cheap prices, as books 25 (sell) at such low price could be in very bad condition.。