时间:2019-02-16 作者:英语课 分类:英语听力文摘 English Digest


英语听力文摘 English Digest 100、婴儿睡觉时体重在增加吗? - 英语课
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  1. 1 英语听力文摘 English Digest 100、婴儿睡觉时体重在增加吗? 英语课
英语课

  Most people who hold babies know that the moment babies go to sleep, they seem to gain weight. Of course, a baby’s weight doesn’t really change when they fall asleep, so why does the limp, floppy 1 weight of a sleeping baby seem greater than it actually is?

A sleeping baby in your arms feels heavier because you must constantly adjust your own movements to compensate 2 for their floppiness 3. Your muscles work harder to carry a child who’s asleep, and your brain perceives this increase in work as an increase in the child’s weight, though, of course, the weight of the baby stays the same.

To picture this, think about carrying a twenty-pound bag of water. You would continually have to rearrange how you were holding that bag to make up for how the weight shifted due to the water sloshing around.

In a similar way, you must continually adjust how you are holding or carrying a sleeping baby because they aren’t able to control their own muscles to maintain a steady posture 4. Their inability to control their posture and movements makes them floppy, just like that bag of water.

Now, freeze your twenty-pound bag of water. Though it would be cold and slippery, it would feel lighter 5 because it is a solid weight that doesn’t require you to constantly make minute adjustments in order to carry it. This is how you perceive the weight of a conscious person.

Babies aren’t the only ones who seem heavier when they go limp. Dogs and cats also seem to gain weight when they go to sleep. And political protesters take advantage of this phenomenon by completely relaxing their muscles when police try to drag them away from a protest.

limp:无精神的

floppy:松软的

slippery:滑的



adj.松软的,衰弱的
  • She was wearing a big floppy hat.她戴了顶松软的大帽子。
  • Can you copy those files onto this floppy disk?你能把那些文件复制到这张软盘上吗?
vt.补偿,赔偿;酬报 vi.弥补;补偿;抵消
  • She used her good looks to compensate her lack of intelligence. 她利用她漂亮的外表来弥补智力的不足。
  • Nothing can compensate for the loss of one's health. 一个人失去了键康是不可弥补的。
n.姿势,姿态,心态,态度;v.作出某种姿势
  • The government adopted an uncompromising posture on the issue of independence.政府在独立这一问题上采取了毫不妥协的态度。
  • He tore off his coat and assumed a fighting posture.他脱掉上衣,摆出一副打架的架势。
n.打火机,点火器;驳船;v.用驳船运送;light的比较级
  • The portrait was touched up so as to make it lighter.这张画经过润色,色调明朗了一些。
  • The lighter works off the car battery.引燃器利用汽车蓄电池打火。
学英语单词
abu dhabi (abu zabi)
annual yield
Arab, Oued el
automatic plotter
autoscanning
bank account number
bear-bag
bihac
bladder vulsellum forceps
boiling pan
bolsena, lake
booster type master cylinder
Bronkodyl
Bronkometer
car-drivers
centractil
change ... condition
Cheat Chain
coarctateretina
Codonopsis canescens
common fraction
complex field vector
conchospore
constant pressure combustor
conveyor belt with transverse ribs
corton-charlemagne
coslettise
cromartie
curved-tooth bevel gear generator
discharge of clean ballast
discontinuous furnace
double k-class estimator
double-blow heading
embassades
EODU
four-ram steering gear
fragile ecosystem
garcinia hanburyis
genus Carduus
go to trouble
going bord
Gujing Wan
hair cross
harmonic sound
hinking
impune
intervocalically
it won't be long
lammergeyer
landing surface
lizard lines
loaded cargo
localized recommendation
lovetap
magnetic bremsstrahlung
matienzo
metoxyphenol
microscope warming table
miles gloriosus
natural containment
net asset backing
operator control system
Our Lady
own-ship path
oxymycin
paper gain
paraffin treated string
phytoprostanes
plated guard
Pocket Cube
post-spawnings
Presteigne
radio communication for emergency purpose
ramulosum
rasorite
rated residual non-operating current
reduced-pressure
samplings
Santiago I.
sap-sample
school of management thought
semi-automatic turret lathe
shell mold press
sneakers
standpipe pressure
stirre
superscalar architecture
suretiships
synthetic resin molding compound
tellingoff
threshold of damages
Transilvaniei, Câmpia
Tryptantrin
tubal block
tuberculosis of serous membrane
tumours
user interface
waste fuels
water consumption graph
wave character of matter
yatra
zinc oxide cement