全文预览

高中英语 Unit 5 First aid Period 6 Reading and writing教学设计 新人教版必修5

上传者:蓝天 |  格式:doc  |  页数:16 |  大小:203KB

文档介绍
ks.Р6. Heart attack: First aidР?A heart attack occurs when one or more arteries supplying your heart with blood and oxygen e blocked. This loss of blood flow injures your heart muscle. A heart attack generally causes chest pain for longer than 15 minutes, but it can also be silent and have no symptoms at all.Р?About half the people who suffer a heart attack have warning symptoms hours, days or weeks in advance. The earliest predictor of an attack may be recurrent chest pain that’s triggered by exertion and relieved by rest.Р?The American Heart Association lists these warning signs and symptoms of a heart attack. Be aware that you may not have all of them and that symptoms e and go.Р?● fortable pressure, fullness or squeezing pain in the center of your chest, lasting more than a few minutes

收藏

分享

举报
下载此文档