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.
信息和事实（Facts）：
感受与评价（Comments）：
1.昨天 练完之后才发现自己的语速太快了，今天得好好练一下，语速放慢，元音饱满，辅音清晰。
2.今天听了老师的讲解发现我的新概念学的太皮毛了，只知道每天查音标，看固定短语，练朗读，并没有英译汉，汉译英，并没有利用新概念做更多的事情，只知其一不知其二，而且听了老师的分享感觉学好新概念，打遍天下小怪兽，所以以后真的得好好利用新概念。S老师团队的老师们怎么说话声音都那么好听呢，有美颜难道也有美声？好想去参加新概念小组，可惜我没有进入成长会。
3.带脑子练习，感触最深的一句，之前浪费了太多时间，就是没有带脑子，溜号，不注意，只注重完成任务的结果，并没有在过程中好好掌握应当学到的知识。
统计累计的练习小时数（Hours）：
50m/26h