时间:2019-02-15 作者:英语课 分类:英语时差8,16


英语课

 Welcome to another Moment of Science. Once again we're going to talk about some everyday "scientific" wisdom that may or may not be true.   For example, here's a common belief about exercise. If you work out in the morning and want to lose more calories, don't eat before exercise.


Does this bit of common knowledge hold water? Sort of. When the body is depleted 1 of energy, it begins to feed off of itself, first by devouring 2 stored fat. So it would seem to make sense that the less energy you take in before exercise, the more fat your body burns. And this is true, to a point. But the amount of extra fat burned when you don't eat before exercise is pretty small. Plus, without eating, the body has less energy to keep going, which can lead to a shorter workout.
Finally, depending upon the intensity 3 of the activity, exercising on an empty stomach can make you feel pretty famished 4 afterwards. In fact, you might feel so depleted that after working out you end up eating more than you otherwise would. So, theoretically, not eating before exercise could actually lead to weight gain.
Having something to eat before working out, on the other hand, can be a good thing. It gives the body enough energy to sustain a decent workout and leaves you feeling less hungry afterwards. Eating a calorie-rich, lavish 5 breakfast before exercise isn't a good idea, of course, since it will leave you sluggish 6 and overly full. But having a little something before your morning run seems to be the way to go.   While scientists have discovered that a kid's working memory holds on average one less item than an adult's, the jury is still out on why this is the case. Is there a difference between the capacity of the adult brain and the child's brain? Or do adults have better-developed strategies for remembering?
Regardless of the correct answer, this suggests that your kids are probably not just making excuses when they tell you they forgot. To make things easier on them, try breaking lists down into small chunks 7. But if that doesn't help, don't worry. They'll grow up eventually. And then, although they still won't do what they're told, it won't be because they don't remember.   

吞没( devour的现在分词 ); 耗尽; 津津有味地看; 狼吞虎咽地吃光
  • The hungry boy was devouring his dinner. 那饥饿的孩子狼吞虎咽地吃饭。
  • He is devouring novel after novel. 他一味贪看小说。
n.强烈,剧烈;强度;烈度
  • I didn't realize the intensity of people's feelings on this issue.我没有意识到这一问题能引起群情激奋。
  • The strike is growing in intensity.罢工日益加剧。
adj.饥饿的
  • When's lunch?I'm famished!什么时候吃午饭?我饿得要死了!
  • My feet are now killing me and I'm absolutely famished.我的脚现在筋疲力尽,我绝对是极饿了。
adj.无节制的;浪费的;vt.慷慨地给予,挥霍
  • He despised people who were lavish with their praises.他看不起那些阿谀奉承的人。
  • The sets and costumes are lavish.布景和服装极尽奢华。
adj.懒惰的,迟钝的,无精打采的
  • This humid heat makes you feel rather sluggish.这种湿热的天气使人感到懒洋洋的。
  • Circulation is much more sluggish in the feet than in the hands.脚部的循环比手部的循环缓慢得多。
厚厚的一块( chunk的名词复数 ); (某物)相当大的数量或部分
  • a tin of pineapple chunks 一罐菠萝块
  • Those chunks of meat are rather large—could you chop them up a bIt'smaller? 这些肉块相当大,还能再切小一点吗?
学英语单词
abstract data
air mile
Al Matnah
all in the wind
anacoustic zone
arteriae coronaria sinistra
asme(american society of mechanical engineers)
balance-wheel
ball float valve
benzyl disulphide
berkovitz
biskin
bristle up
building management system
Cap-fungus
case hardended steel
central nervous mass
chrome tanning
complement of personnel
cone projection
Copsychus
counter circulation
cyre
dc restorer(or clamping circuit)
decolouring
degradation sheet
differentiated dike rock
dorsabdominal
durationless
ecolit
Eltroxin
ethylene anesthesia
evening shirts
fieldscale
financial services sector
fix by astronomical observation
foot-brake
fuel rod spacer
Gaedelian
grd
Guglieri
have someone by the leg
hejin
Horgau
horizontal shell boiler
intelligence-driven
intracompany comparison
iridokeratitis
irreducible invariantsubspace
Iseo
Ismael Cortinas
john sutter
Kamboji
keep one's temper
Laguna Park
Lonicera elisae
manufacturing areas for export commodities
many degrees of freedom system
monomyositis
multiples
multiplier quotient
nurse-tree
octyl-
Old Bill
ommatophores
overt aggression
product form of specification
pruning of green branches
read exit option
Reevesia xuefengensis
refuter
reissite
rentback
rise-time
rotating device
ryoko
short eats
Sierpinski cubes
signal machine
Simonite
single-harmonic distortion
skirted piston
something is better than nothing
spectroscopic displacement law
stackless
Statocin
stern-drop
stone instrument
subsymbol
szilard-chalmers reaction
tangent number
tax source
thiophanthrene
tool-carrier
tray accumulator
Tsengia
underground hydraulic power plant
unitegminy
vinnel
vladimir vladimirovich putins
Weilerite
yili