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
.ccb
Adelostemma gracillimum
air defense
Aspergillus gliocladium
attorneys-at-law
Bosch, Carl
bromo-methyl-ether
Browning, John Moses
brummer
business-based
Chamaecyparis obtusa
Cisjordania
civil duties
clamp buffer
collura
crematoriums
detergences
didee
direct speech act
direct-examine
doubleedged
dual theory of light
empty container mileage
enclosed cockpit
fillups
fire-float
flavour
flooded type
focalized
follicular carcinonia
fracture control technique
frame pedestal thimble
free-space field intensity
genus chrysophryss
Gratiolet's optic radiation
handshake controller
heating hose coupling
high-q (high quality factor)
highly-rated
hollow-head set-screw
horseshoe life buoy U
huperzia phlegmaria
irmelas
Iroise, Mer d'
isogenies
Jacob's coat
Jangseongho
jobmaker
Konice
kusche
leafy powder
leurne
low blueberry
low refractive high dispersive glass
low-pressure purge
malformation syndrome
manual matching operations
mcui
melodeonists
metal-dielectric filter
midcolonial
miscarry
misphrase
Mlicrococcus mastitidis
multicaulis
mutato nomine de te fabula narratur
nitrogen solution boom
non-directional current protection
non-equilibrium thermodynamics
Norwegian elkhound
nuclei Spinalis nervi accessorii
phthalate anhydride
plastic injection moulding machine
polioencephalotropic
polypnea
pressure equipment
privacy network
prohibition sign
qizhi weitong granules
radar rating
ratchet wrenches
rectifier protection
red-eye special,the
reed type comparator
satellite navigational equipment
scarlet haw
scienticomic
sick-rooms
sotyl
strategic propaganda
Sólheimajökull
temperature-compensated equipment
trial-by-legislature
Trilobitae
tyropanoate
ur(o)-
Virgin Islands
walking over
width of panel
winninish
x-ray analysis (of crystals)