1.原材料引用（Materials）
This is the VOA Special English Health Report.?
Cardiopulmonary resuscitation, or CPR, can save the life of someone whose heart has?stopped. The condition is called cardiac arrest. The heart stops pumping blood. The?person stops breathing. Without lifesaving measures, the brain starts to die within four?to six minutes.?
CPR combines breathing into the victim's mouth and repeated presses on the chest.?CPR keeps blood and oxygen flowing to the heart and brain.?
However, a new Japanese study questions the usefulness of mouth-to-mouth?breathing.?
The study was published in the British medical magazine, The Lancet. Doctors in Tokyo?led the research. It examined more than four thousand people who had suffered?cardiac arrest. In all the cases, witnesses saw the event happen.
?More than one thousand of the victims received some kind of medical assistance from?witnesses. Seven hundred and twelve received CPR. Four hundred and thirty-nine?received chest presses only. No mouth-to-mouth rescue breaths were given to them.?The researchers say any kind of CPR improved chances of the patient's survival. But,?they said those people treated with only chest presses suffered less brain damage.?Twenty-two percent survived with good brain ability. Only ten percent of the victims?treated with traditional CPR survived with good brain ability.?
The American Heart Association changed its guidelines for CPR chest presses in two?thousand five. It said people should increase the number of chest presses from fifteen?to thirty for every two breaths given.?
Gordon Ewy is a heart doctor at the University of Arizona College of Medicine in Tucson.?He wrote a report that appeared with the study. Doctor Ewy thinks the CPR guidelines?should be changed again. He said the heart association should remove rescue breaths?from the guidelines.?
He argues that more witnesses to cardiac arrests would provide treatment if rescue?breaths are not a part of CPR. He says this would save lives. Studies show that many?people do not want to perform mouth-to-mouth breathing on a stranger for fear of?getting a disease.?
Cardiac arrest kills more than three hundred thousand people in the United States?every year. The American Heart Association says about ninety-five percent of victims?die before they get to a medical center.?
And that's the VOA Special English Health Report, written by Caty Weaver. I’m Bob?Doughty.
2.信息和事實(shí)（Facts）
Cardiopulmonary resuscitation——心肺復(fù)蘇
cardiac arrest——n.?心搏停止
?Lancet——n.?柳葉刀
guideline——n.?指導(dǎo)方針
3.感受和評(píng)價(jià)（Commens）
1.S說(shuō)中途放棄的人會(huì)達(dá)到了一半，這讓我有些緊張，這挺好锦秒，有點(diǎn)緊張總是好的力崇。希望自己能夠堅(jiān)持下來(lái)廉羔，雷打不動(dòng)蛔六，花一個(gè)月的時(shí)間用心把一件事做好磷蜀。
2.快慢轴捎、語(yǔ)調(diào)和停頓鹤盒，很多地方都與原聲不同蚕脏，努力改進(jìn)。
4.統(tǒng)計(jì)累計(jì)的練習(xí)小時(shí)數(shù)（Hours）
累計(jì)1小時(shí)
