时间:2019-01-11 作者:英语课 分类:VOA慢速英语2009年(五)月


英语课

This is the VOA Special English Health Report.


If a person's heart stops, would you know how to perform CPR? CPR, or cardiopulmonary resuscitation 1, can save a life and reduce the risk of brain damage from loss of oxygen.


With traditional CPR, you give two breathes to force air into the lungs. Then you push hard on the chest thirty times. You repeat these two steps until the victim wakes up or medical help arrives.
 
A student practices traditional CPR in a training class


But people may worry about getting sick from blowing into a stranger's mouth. Also, the training is easy to forget, especially during an emergency.


And those without training may not do anything for fear that they will do something wrong. So in two thousand eight the American Heart Association 2 simplified its guidelines 3.


The group now calls for hands-only CPR for adults who suddenly collapse 4. Here is how it works 5:


A person has collapsed 6 unconscious on the ground. The victim has lost color in the face and does not appear to be breathing. These are signs of cardiac arrest. This is the time to begin CPR.


Place your hands, one on top of the other, on the center of the chest. Push hard and fast. Aim for a rate of about one hundred compressions each minute. Chest compressions keep the blood flowing to the brain, heart and other organs.


Guidelines from two thousand five said only untrained people should use hands-only CPR. Those with training were told to use traditional CPR. But now the heart association says everyone should use hands-only CPR unless they feel strong about their ability to do rescue breathing.


The guidelines were updated after three studies showed that the hands-only method was just as effective as traditional CPR. Scientists say enough oxygen remains 7 in a person's system for several minutes after breathing stops.


But the experts say you should still use traditional CPR with a combination 8 of breaths and compressions on babies and children. Traditional CPR should also be used for adults found already unconscious and not breathing normally 9. And traditional CPR should be used for any victims of drowning or collapse from breathing problems.


These are all examples where CPR with mouth-to-mouth breathing may be more helpful that hands-only CPR. Because there are many of these cases, people should still learn CPR with mouth-to-mouth.


And that's the VOA Special English Health Report. You can learn more at americanheart.org/cpr. For a link, go to voaspecialenglish.com. I'm Steve Ember.



n.复活
  • Despite attempts at resuscitation,Mr Lynch died a week later in hospital.虽经全力抢救,但林奇先生一周以后还是在医院去世了。
  • We gave him mouth-to-mouth resuscitation and heart massage.我们对他进行了口对口复苏救治和心脏按摩。
n.联盟,协会,社团;交往,联合;联想
  • Our long association with your company has brought great benefits.我方和贵公司的长期合作带来了巨大的利益。
  • I broke away from the association ten years ago.我10年前就脱离了那个团体。
n.指导方针,准则
  • The government has drawn up guidelines on the treatment of the mentally ill. 政府制订了对待精神病人的指导方针。
  • Planners seem a little uncomfortable with the current government guidelines. 规划师似乎不太接受现行的政府指道方针。
vi.累倒;昏倒;倒塌;塌陷
  • The country's economy is on the verge of collapse.国家的经济已到了崩溃的边缘。
  • The engineer made a complete diagnosis of the bridge's collapse.工程师对桥的倒塌做了一次彻底的调查分析。
n.作品,著作;工厂,活动部件,机件
  • We expect writers to produce more and better works.我们期望作家们写出更多更好的作品。
  • The novel is regarded as one of the classic works.这篇小说被公认为是最优秀的作品之一。
adj.倒塌的
  • Jack collapsed in agony on the floor. 杰克十分痛苦地瘫倒在地板上。
  • The roof collapsed under the weight of snow. 房顶在雪的重压下突然坍塌下来。
n.剩余物,残留物;遗体,遗迹
  • He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
  • The remains of the meal were fed to the dog.残羹剩饭喂狗了。
n.组合,合并,联合;
  • He carried on the business in combination with his friends.他与朋友们合伙做生意。
  • The materials can be used singly or in combination.这些材料可以单独使用也可以混合用。
adv.正常地,通常地
  • I normally do all my shopping on Saturdays.我通常在星期六买东西。
  • My pulse beats normally.我脉搏正常。
学英语单词
airinlet
all - terrain vehicle
Amble's method
antirickettsial
arthropod bites
barrage cell
Bensonian
blast cupola
Canadian Transport Commission
castro dei volsci
cell-counter with electric-resist detecting method
cheilotrichia (empeda) liliputina
colubrid
commutater end head felt pad
correalism
Crataegutt
disodium colour
ectocolostomy
exhalent
extraordinaire
eyelinerpencil
Ferri diffuser
flat policy
flight discipline
Franzen's index
get butterflies in one's stomach
grashof double-rocker
Grewia falcata
heavy-duty cutter
hovercraft dredger
hydroxytyramine hydrobromide
incident sound
initial assessment
insupportably
Ipyong-dong
iso-iec 11172-2 decoder
isoaldehydes
jugular lymph sac
kali-
ketothiolase
key sth in
lamp blown glass
laprobe
last use
law-list
layer of sugar
longitudinal arch of foot
longyearbyen (longyear city)
loss one's capital
low-level flight
Luisia morsei
MIAC
micropyle
minut
molecular stability
molten mass
much ado about nothing
narcotics(officer)
nitrocellulose-nitroglycerine mixture
nondepolarizing
OIAC
ozogamicin
parallel control
permanent set in fatigue
podzol type of soil formation
port arch
port opening
pretornal
primary bubo
quarter pounder
rate of flame propagation
recomforting
redeleting
repackings
repetition distance
reprofile
ribbon structure
rifled barrel
saffred
Sierra Blanca
silvias
smack-dab
sprue stopper
tangent friction force
the crock of gold
time-ship
tipping pitman
Tom Joneses
Tondern
transit rule
transposed teeth
trase
tropic lower low water
turning mechanism
tympanic trephine
Urtica thunbergiana
Virolahti
vulture
wastewater purification plant
wearing apparels
zygadenine