2019高考英语一轮复习必修五练习试题(5份)

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2019高考英语一轮复习练习题(含解析)(打包5套)新人教版必修5
2019高考英语一轮复习练习题Unit1GreatScientists含解析新人教版必修5201809221104.doc
2019高考英语一轮复习练习题Unit2TheUnitedKingdom含解析新人教版必修520180922195.doc
2019高考英语一轮复习练习题Unit3Lifeinthefuture含解析新人教版必修520180922189.doc
2019高考英语一轮复习练习题Unit4Makingthenews含解析新人教版必修520180922181.doc
2019高考英语一轮复习练习题Unit5FirstAid含解析新人教版必修520180922176.doc
  Great Scientists  
  一、阅读理解
  阅读下面短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。
  "Breakfast is the most important meal of the day," reports the Daily Mail, claiming that "skipping it increases your chances of a heart attack."
  The study, published in the peer-reviewed journal Circulation, was carried out by researchers from the Harvard School of Public Health, Brigham and Women’s Hospital and Harvard Medical School. It was funded by the US National Institutes of Health and the Canadian Institutes of Health Research.
  This study followed 26,902 male American dentists, vets, pharmacists(药剂师), optometrists, osteopaths and podiatrists(足疗师) aged between 45 and 82 years old for 16 years. To be fit for the study, the men could not have a history of cancer, coronary heart disease, heart attack or stroke.
  The population being studied was also extremely limited — professional men who were almost white. More research in women and other groups is needed for us to learn more about breakfast and heart health.
  After tracking a large group of middle-aged and older male American health professionals, studying their eating habits and their risk of developing coronary heart disease for 16 years, it found that men who reported skipping breakfast had a 27% higher risk of coronary heart disease than men who ate breakfast.
  Men who regularly were addicted to a "midnight snack" were found to have a 55% higher risk of coronary heart disease than men who didn’t. However, no association was seen between eating frequency (number of meals per day) and the risk of coronary heart disease. This could suggest that it is the timing of meals rather than the frequency that has a bigger influence on heart health.
  But because of the design of this study, a direct cause and effect relationship between breakfast and health cannot be proved. While the researchers attempted to take certain lifestyle factors into account, it could be the case that people who take time to have a regular breakfast also tend to have healthier lifestyles.
  1.What is the passage mainly discussing?
  A. Heart disease risk is higher in men who skip breakfast.
  B. Breakfast is the most important meal of the day.
  C. Many professionals took part in the research.
  D. Some people have a preference for midnight snacks.
  2.If you want to be a participant    .
  A. you must be an American dentist B. you should contact Circulation
  C. you should be over 50 years old D. you must be free from some diseases
  3.A person who prefers to have midnight snacks    .
  A. may have a higher risk of coronary heart disease
  B. may have a habit of skipping breakfast
  C. may have less than three meals a day
  D. may eat more frequently than others
  4.According to the passage, we can know    .
  A. a regular breakfast will cost a lot of time
  B. more research should be done about breakfast and health
  C. the researchers must have developed healthy lifestyles
  The United Kingdom  
  一、阅读理解
  阅读下面短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。
  Cities usually have a good reason for being where they are, like a nearby port or river. People settle in these places because they are easy to get to and naturally suited to communications and trade. New York City, for example, is near a large harbour at the mouth of the Hudson River. Over 300 years its population grew gradually from 800 people to 8 million. But not all cities develop slowly over a long period of time. Boom towns grow from nothing almost overnight. In 1896, Dawson, Canada, was unmapped wilderness(荒野). But gold was discovered there in 1897, and two years later, it was one of the largest cities in the West, with a population of 30,000.
  Dawson did not have any of the natural conveniences of cities like London or Paris. People went there for gold. They travelled over snow-covered mountains and sailed hundreds of miles up icy rivers. The path to Dawson was covered with thirty feet of wet snow that could fall without warming. An avalanche(雪崩) once closed the path, killing 63 people. For many who made it to Dawson, however, the rewards were worth the difficult trip. Of the first 20,000 people who dug for gold, 4,000 got rich. About 100 of these stayed rich men for the rest of their lives.
  But no matter how rich they were, Dawson was never comfortable. Necessities like food and wood were very expensive. But soon, the gold that Dawson depended on had all been found. The city was crowded with disappointed people with no interest in settling down, and when they heard there were new gold discoveries in Alaska, they left Dawson City as quickly as they had come. Today, people still come and go — to see where the Canadian gold rush happened. Tourism is now the chief industry of Dawson City — its present population is 762.
  1. What attracted the early settlers to New York City?
  A. Its business culture.
  B. Its small population.
  C. Its geographical position.
  D. Its favourable climate.
  2. What do we know about those who first dug for gold in Dawson?
  A. Two-thirds of them stayed there.
  B. One out of five people got rich.
  C. Almost everyone gave up.
  D. Half of them died.
  Life in the future
    一、阅读理解
  阅读下面短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。
  Plastic-Eating Worms
  Humans produce more than 300 million tons of plastic every year. Almost half of that winds up in landfills(垃圾填埋场), and up to 12 million tons pollute the oceans. So far there is no effective way to get rid of it, but a new study suggests an answer may lie in the stomachs of some hungry worms.
  Researchers in Spain and England recently found that the worms of the greater wax moth can break down polyethylene, which accounts for 40% of plastics. The team left 100 wax worms on a commercial polyethylene shopping bag for 12 hours, and the worms consumed and broke down about 92 milligrams, or almost 3% of it. To confirm that the worms’ chewing alone was not responsible for the polyethylene breakdown, the researchers made some worms into paste(糊状物) and applied it to plastic films. 14 hours later the films had lost 13% of their mass — apparently broken down by enzymes (酶) from the worms’ stomachs. Their findings were published in Current Biology in 2017.
  Federica Bertocchini, co-author of the study, says the worms’ ability to break down their everyday food — beeswax — also allows them to break down plastic. "Wax is a complex mixture, but the basic bond in polyethylene, the carbon-carbon bond, is there as well, "she explains, "The wax worm evolved a method or system to break this bond. "
  Jennifer DeBruyn, a microbiologist at the University of Tennessee, who was not involved in the study, says it is not surprising that such worms can break down polyethylene. But compared with previous studies, she finds the speed of breaking down in this one exciting. The next step, DeBruyn says, will be to identify the cause of the breakdown. Is it an enzyme produced by the worm itself or by its gut microbes(肠道微生物)?
  Bertocchini agrees and hopes her team’s findings might one day help employ the enzyme to break down plastics in landfills. But she expects using the chemical in some kind of industrial process — not simply "millions of worms thrown on top of the plastic. "
  1. What can we learn about the worms in the study?
  A. They take plastics as their everyday food.
  B. They are newly evolved creatures.
  C. They can consume plastics.

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