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A、1800 calories. B、1280 calories. C、1680 calories. D、2960 calories. D由文中obese people require 1,680 daily calories to sustain nor
A、1800 calories. B、1280 calories. C、1680 calories. D、2960 calories. D由文中obese people require 1,680 daily calories to sustain nor
admin
2013-10-31
47
问题
Obesity contributes to global warming too
Obese and overweight people require more fuel to transport them and the food they eat, and the problem will worsen as the population literally swells in size, a team at the London School of Hygiene & Tropical Medicine says.
This adds to the food shortage and higher energy prices, the school’ s researchers wrote in the journal Lancet on Friday.
At least 400 million adults worldwide are obese. The World Health Organization(WHO)projects by 2015 ,2.3 billion adults will be overweight and more than 700 million will be obese.
In their model, the researchers pegged 40 percent of the global population as obese with a body mass index of near 30. Many nations are fast approaching or have surpassed this level.
BMI is a calculation of height to weight, and the normal range is usually considered to be 18 or 25. with more than 25 considered overweight and above 30 obese.
The researchers found that obese people require 1,680 daily calories to sustain normal energy and another 1, 280 calories to maintain daily activities, 18 percent more than someone with a stable BMI.
Because thinner people eat less and are more likely to walk than rely on cars, a slimmer population would lower demand for fuel for transportation and for agriculture.
This is also very important because 20 percent of greenhouse gas emission stem from agriculture.
The next step is quantifying how much a heavier population is contributing to climate change, higher fuel prices and food shortage.
" Promotion of a normal distribution of BMI would reduce the global demand for, and thus the price of, food," Edwards and Roberts wrote.
Questions
26. Which of the following can best describe the main idea of the talk?
27. According to the talk, which of the following can be made worse by the growing obese population?
28. According to WHO, by 2015, what would be the estimated figure of the global obese population?
29. According to the researchers, how much energy would an obese person need for a day?
30. According to Edwards and Roberts, what would happen if we promote a normal distribution of BMI?
选项
A、1800 calories.
B、1280 calories.
C、1680 calories.
D、2960 calories.
答案
D
解析
由文中obese people require 1,680 daily calories to sustain normal energy and another1,280 calories to maintain daily activities可知肥胖的人每天需要1680卡路里作为正常能源,和1280卡路里维持日常生活,所以每天共需要2960卡路里。
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