时间:2019-01-08 作者:英语课 分类:Scientific American(五)月


英语课

This is Scientific American's 60-second Science. I'm Cynthia Graber, this will just take a minute.


Americans have gained a lot of weight in the past few decades. Is it our sedentary lifestyle?  The increase in processed foods and sweeteners? Supersized portions? Researchers from the World Health Organization in Australia say it’s very simple: We eat too much. They presented their findings May 8th at the European Council on Obesity 1. Scientists measured the metabolism 2 of almost 1,500 adults to determine how many calories their bodies burn under normal conditions, then they calculated how many calories they'd need to maintain body weight. They figured out how much we are eating today versus 3 three decades ago by comparing agricultural data from then and now. They determined 4 total food grown and imported minus what was exported, thrown away or used for livestock 5. With that information, they predicted how much fatter we should be based just on consumption. Now we’ve actually gained a little less than the numbers say we should have. Maybe because we’ve added some exercise to the equation. The scientists say this study shows that the situation is straightforward 6: Exercise is great, but to get the weight down, Americans have to adopt the ELF diet where ELF stands for eat less food, “I’m sorry I called you fat, fat, fat.”


Thanks for the minute for Scientific American's 60-second Science. I'm Cynthia Graber.


 



n.肥胖,肥大
  • One effect of overeating may be obesity.吃得过多能导致肥胖。
  • Sugar and fat can more easily lead to obesity than some other foods.糖和脂肪比其他食物更容易导致肥胖。
n.新陈代谢
  • After years of dieting,Carol's metabolism was completely out of whack.经过数年的节食,卡罗尔的新陈代谢完全紊乱了。
  • All living matter undergoes a process of metabolism.生物都有新陈代谢。
prep.以…为对手,对;与…相比之下
  • The big match tonight is England versus Spain.今晚的大赛是英格兰对西班牙。
  • The most exciting game was Harvard versus Yale.最富紧张刺激的球赛是哈佛队对耶鲁队。
adj.坚定的;有决心的
  • I have determined on going to Tibet after graduation.我已决定毕业后去西藏。
  • He determined to view the rooms behind the office.他决定查看一下办公室后面的房间。
n.家畜,牲畜
  • Both men and livestock are flourishing.人畜两旺。
  • The heavy rains and flooding killed scores of livestock.暴雨和大水淹死了许多牲口。
adj.正直的,坦率的;易懂的,简单的
  • A straightforward talk is better than a flowery speech.巧言不如直说。
  • I must insist on your giving me a straightforward answer.我一定要你给我一个直截了当的回答。
标签: SSS portion
学英语单词
akutan i.
alternating-pressure method
analog computing circuit
anoxaemias
antimicrobial (agent)
bacterial food poisoning
ban ta sut
base transit time
batch freezer
beam attenuation coefficient
benzopteridine
berthing structure
blue cheese dressings
Bukit Rotan
call attention to
cat and dog
Catak
chastiment
chronogene
combined voltage current transformers
committo
console optical-display plotter
constancia
construction diagram
coral coast
cycliramine
day cares
differential GPS
export bar
extension head
fibrintimer
float-fishing
Gaponovo
governmental organs
Grasset's phenomenon
guide vane stem
hair dividers
Helerocolylea
high-q
high-sudsers
holographic data storage
intermediate crank pin
John Simmons
juggle black and white
lamboni
lan-free data movement
lay length of twist
main throttle
marineris
Marinka
metamorphide
newshams
Noether
noiseproofs
nong-nong
occupational and safety hazard organization
odontorrhagia
oral intake
Ornithogalum
oxidizing period
pay for your whistle
Peltier cooler
perfectings
pescadores islands
phase plane analysis
physical experience
plant protection
pleosphaerulina subtulatae tsukamoto et katsuki
pneutronic bunker
polvo
presentation level
primary cell power supply
Psocoptera
reacting fluid
Real Video
Redwood number
rehypnotized
Reinartz cyrstal oscillator
reinvent yourself
reserve for inventory of supplies
sarbanes - oxley act
scarleting
seal with U-packing U
separated oil skins
snowboards
sociopathic personality
spectroadiometer
stayed out
steam emulsion number
straighten
swordfighter
t-testing
taxocline
terpins
thaumatropical
theory of social science
todeschini
undecplate
visiting associate professor
wave-built terrace
wild service trees
wind-sensitive structure