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.
信息和事實(shí)（Facts）：
感受與評(píng)價(jià)（Comments）：
1.昨天 練完之后才發(fā)現(xiàn)自己的語(yǔ)速太快了，今天得好好練一下，語(yǔ)速放慢，元音飽滿，輔音清晰。
2.今天聽了老師的講解發(fā)現(xiàn)我的新概念學(xué)的太皮毛了，只知道每天查音標(biāo)，看固定短語(yǔ)，練朗讀，并沒有英譯漢，漢譯英，并沒有利用新概念做更多的事情，只知其一不知其二，而且聽了老師的分享感覺學(xué)好新概念，打遍天下小怪獸，所以以后真的得好好利用新概念。S老師團(tuán)隊(duì)的老師們?cè)趺凑f(shuō)話聲音都那么好聽呢，有美顏難道也有美聲？好想去參加新概念小組，可惜我沒有進(jìn)入成長(zhǎng)會(huì)。
3.帶腦子練習(xí)，感觸最深的一句，之前浪費(fèi)了太多時(shí)間，就是沒有帶腦子，溜號(hào)，不注意，只注重完成任務(wù)的結(jié)果，并沒有在過(guò)程中好好掌握應(yīng)當(dāng)學(xué)到的知識(shí)。
統(tǒng)計(jì)累計(jì)的練習(xí)小時(shí)數(shù)（Hours）：
50m/26h
