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
-idium
abyssal hill
allowable switching current
APL/360
as dull as ditchwater
baghous
Beloitoceras
Calydonian boar
camshaft sleeve
Casaglia, Colla di
cathodochromic material
caudal horn
cloze test
coaxial carbon
concert hall acoustics
conduit tube
cyclotron maser
dangerous semicircle
de Hass-Schubnikov oscillation
dinky (jamaica)
document examiner
double eagles
drop count technique
dual frequency range rate instrumentation
echelon telegraphy
eicosapentaenoic acid(EPA)
Elatostema papillosum
electro-adsorption
emplastrum lithargyri
engineering bill of materials
equiamplitude surface
eutrophy
expenditure-switching policy
face plate jaw
fibre protective agent
fuel poverty
gastromancer
geographizes
get my goat
glyoxylase
Gwandu
hydrofracture grouting
hypocholesteromia
ice cream machine
incompressible ideal-fluid mechanics
inert gene
jet reaction control system
jpac
Kaffir circus
key file structure
king plank
left recursive
letter bundling machine
light coloured beer
Lutowiska
maiosis
mechanical degradation
medlate therapeutic
mellencamp
method of check-off
mnltiplication period
multicombustion chamber
naked fire light
number of
osteoclast
over-modulation
padovani
pervious course
pigilanidotriose
piston pneumatic drill
Polyarthrosis
ranking liabilities
refreshful
republicizes
resums
robot control command
rolled joint
sack dump hopper
science-fiction film
sclero-iridectomy
segment control code
Shikouan Stage
shire-horse
spore of fungus
static photographic resolution
subdevice bit
subject analysis block
subquests
Surface Transportation Board
to strike a bargain
Tonyol
trade data
traveling library
two dimension-two wire
uncomplexed
uniform of application
waterspout (wtspt)
waverneys
white-knuckle ride
wurman
X-ray burst
zongzi