时间:2019-02-24 作者:英语课 分类:英语听力文摘 English Digest


英语课
Bedtime 1 Blues 2

尿床的困扰



Never a happy topic, bed wetting is a very distressing problem for five to seven million American kids. If we can’t explain why some people like to pick on these kids, can we at least shed 3 some light on what causes bed wetting?

 
 
At one time, people punished bed-wetters for acting 4 badly, but today scientists believe that this condition has several physical causes. Some kids suffer from problems like infections or anatomicaldefects that can be easily identified and treated.

 
 
Other causes are harder to pin down. One promising 5 area of research is on the kidneyhormoneADH. We all produce more ADHhormone at night. ADH signals the kidney to slow down production. This is why we don’t go to the bathroom for eight hours at night but could never last that long between bathroom breaks during the day. Some children who wet their beds do not produce enough ADH at night. When given drugs that boost this hormone, they stop bed wetting.

 
 
Finally, some kids simply have small bladders and an undeveloped nervous system. The good news is that these kids, like most bedwetters, will grow out of it as their bodies develop and mature.


 

尿床可是个不愉快的话题。尿床困扰着500万至700万名美国儿童。如果我们无法解释为什么偏偏这些儿童尿床,那么我们至少探究下尿床的原因吧!

 
 
以前,经常尿床的儿童会被罚。但是,如今科学家相信尿床是基于生理因素。一些儿童患常见可治愈传染病或结构缺陷。

 
 
其它原因就很难下定论了。有种可行性研究的方向是肾脏激素:抗利尿激素。夜晚人体分泌的抗利尿激素较多。抗利尿激素向肾脏发出减慢新陈代谢的信号。这是为什么我们夜晚八小时不上厕所,但是白天上厕所的间隔时间却更短。一些儿童尿床是因为夜晚没有分泌足够的抗利尿激素。服用药物促进抗利尿激素分泌就可以治疗儿童尿床。

 
 
另外,有些儿童尿床仅仅是因为膀胱小且神经系统发育不完善。可喜的是随着身体机能的发育和成熟,大多数尿床儿童不再尿床。

 
bed wetting:尿床
 
pin down:确定

grow out of :戒除




 



n.就寝时间
  • It's your bedtime. Go upstairs and go to bed.到睡觉的时间了,上楼去睡觉。
  • If you go to bed now,I've read you a bedtime story.假使你现在就上床睡觉,我就念个睡前故事给你听。
n.抑郁,沮丧;布鲁斯音乐
  • She was in the back of a smoky bar singing the blues.她在烟雾弥漫的酒吧深处唱着布鲁斯歌曲。
  • He was in the blues on account of his failure in business.他因事业失败而意志消沉。
n.车棚,小屋,脱落之物,分水岭;vt.使流出,放射,脱落,散发,摆脱;vi. 流出
  • There are a lot of straws in the shed.棚子里有许多稻草。
  • His nose told him that he was getting near the cow shed.他的嗅觉告诉他,他正走近牛棚。
n.演戏,行为,假装;adj.代理的,临时的,演出用的
  • Ignore her,she's just acting.别理她,她只是假装的。
  • During the seventies,her acting career was in eclipse.在七十年代,她的表演生涯黯然失色。
adj.有希望的,有前途的
  • The results of the experiments are very promising.实验的结果充满了希望。
  • We're trying to bring along one or two promising young swimmers.我们正设法培养出一两名有前途的年轻游泳选手。
学英语单词
A-service area
aerospace craft
augure
base loading
bases on balls
be in league to do
beehler
Bellarmino
cat-ear
catastrophic-illness
chape
cheveron notch
click-bait
closeness of relation
cold junciton
commonizes
complete limit
Conium maculatum poisoning
constantly acting load
continuous production process
critical bearing point
cyclic load-elution test
david gruns
deoxidized steel
developmental norm
differential capstan
dihaploid
dry construction
economics of consumption
edit test
edulious
elephant's ear
emptily
encrustment
entreprenetwork
epizoic
equation of state (EOS)
esophagical
family lactobacteriaceaes
fen-lich
fiber spinning
fit the action to the word
frauen
Galidzga
Ghon complex
goitrogenicity
Hanzi ink jet printer
hard-to-please
honey mouse
hoovers
humane studies
is in agreement with
k-spar (k-feldspar)
know something for a fact
Kogaku
landtied island
Letha Ra.
macromorphology
mammifer
method of spot parameter measurement
microbrachia
multipactor breakdown
nansen ridge
naren
newtons disk
non critical item
nondeterministic nested stack automaton
normal form of vector fields
nsn
osmotic effect
parastasia ferrieri formosana
pearlweeds
phylum cycliophoras
plane of uniform expansion or contraction
poltroon
power points
propyl p-hydroxybenzoate
Putnam.
Quiniluban Is.
ransack one's brain wits
repeat offender
rock soap
skeleton sledding
snapping turtle
spit venom
squooshing
Stephen's spots
stone releaser
sulpho-salt
takt time
theobromide
Thermomonosporaceae
throneroom
Tiroungoulou
tit for tat
utmost vacuum seal
verified copy
wire gauze with asbestos
with regard to
wriggle off the hook
yacoscope
yggdrasils