时间:2019-02-26 作者:英语课 分类:英语听力文摘 English Digest


英语课

   Ow! Why Hot Feels Cold


  Kids don’t try this at home!
  Have you ever dipped your toe into a very hot bath and felt a flash of icy cold just before you realize that its really burning? After you pull your toe out, you might wonder what causes very hot water to feel cold.

  This odd sensation is called paradoxical cold and is caused by the temperature receptors in the skin. There are separate, specific receptors that respond to decreases or increases in skin temperature. If skin temperature drops, the cold receptors fire and if it increases, the warmth receptors fire.
  However, if a strong stimulus 1, like very hot water, can stimulate 2 not only the warmth receptors but also stimulate the pain receptors. These warn us that we are doing ourselves damage, and should take action to prevent it. The strong stimulus can also cause the abnormal stimulation 3 of the cold receptors.
  Over-stimulation can cause the confusing sensation of cold, hot and pain, but as long as we’re clear about pulling the toe out to safety, paradoxical cold is just another strange trick of the senses.

n.刺激,刺激物,促进因素,引起兴奋的事物
  • Regard each failure as a stimulus to further efforts.把每次失利看成对进一步努力的激励。
  • Light is a stimulus to growth in plants.光是促进植物生长的一个因素。
vt.刺激,使兴奋;激励,使…振奋
  • Your encouragement will stimulate me to further efforts.你的鼓励会激发我进一步努力。
  • Success will stimulate the people for fresh efforts.成功能鼓舞人们去作新的努力。
n.刺激,激励,鼓舞
  • The playgroup provides plenty of stimulation for the children.幼儿游戏组给孩子很多启发。
  • You don't get any intellectual stimulation in this job.你不能从这份工作中获得任何智力启发。
学英语单词
594
Acer metcalfii
after-drying
Almanach de Gotha
ameiva ameiva
anastral mitosis
berdache,berdash
Big Valley
bogwoods
broad-arrow engine
commercial frontage
computer storage hierarchy model
Covenant Code
cryptocarine
darnest
distastefulness
draft apparatus
energetics of ecosystems
external spur gear
fibrocartilago interarticularis
fired heater
formylating agent
fortunacy
garbh
Gettorf
ghutra
Gilbert, Is.
group think
harelipped bat
hose beast
khvansar (khunsar)
label(l)ed atom
lancifolia
laplace's transformation
lattice-type frame
laugh against one's will
leave sth. out of consideration
leptastrea bewickensis
levigating
light triggered alarm
low-frequency rebroadcasting
marmaduc
maximum length of pile
meanly
meter wave
Methods Engineering Council
milliamp
mineralizes
Ministry of Labour and Personnel
mis-sware
modulating valve
monstrant
moozy
n-period moving average
narrative strategy
neurochemical
non-sulfur purple bacteria
nonaggregating
outbidden
Paracelsus, Philippus Aureolus
Paraphlomis gracilis
paravanes
parliamentarian
PB(Pushbutton or Pull Box)
per square inch
pesoizing
phyllachora laurinearum
pickled steel wire
Poa dshilgensis
pregnancy diagnosis
probabilistic fracture mechanics
propelling
prorupt
put something to the touch
Rabdosia excisa
radiolytic gas
recursive definition of domain
safety disc
school law
seawater filtration
semiconductors
Sicayari, Mesa de
sigma notation
ski boot
social identity theory
ST_disease-and-illness_losing-consciousness
steppes
string expression interpreter
suicide cable
Tardamid
templet tamper
twentieth
uniform algebra
untranslatables
Vaitupu
variable threshold decoding
verbal plea
villagers
wall collision
Wuchereria malayi
you've made your bed, now lie in it
zizyphus incurva roxb.