https://online2.tingclass.net/lesson/shi0529/0009/9648/S113.mp3
https://image.tingclass.net/statics/js/2012
Millions of people are alive today because they received the blood given by another person. June 14 is World Blood Donor Day. This is the day on which we can say thank you to those who give blood. Every country raises awareness of the importance of giving blood. Most blood donors give blood voluntarily, but some countries pay for people to give blood. Doctors say the blood from unpaid donors is generally safer. The blood donation system is pretty much the same all around the world. You give blood and then get a free cup of tea, and perhaps a biscuit. There is a greater need for blood in developing countries. Under 40% of the world’s blood supply comes from the developing world, where 82% of the world’s population live.
通過(guò)獻(xiàn)血,數(shù)百萬(wàn)生命得以挽救。每年的6月14日為世界獻(xiàn)血日。我們要對(duì)獻(xiàn)血者說(shuō)聲謝謝。所有國(guó)家都提高了對(duì)獻(xiàn)血的重視程度。多數(shù)獻(xiàn)血者自愿獻(xiàn)血,但許多國(guó)家為有償獻(xiàn)血。醫(yī)生稱無(wú)償獻(xiàn)血者通常較為安全。全球獻(xiàn)血體制幾乎一樣。獻(xiàn)血后,工作人員會(huì)給你一杯免費(fèi)茶,或許還有餅干。在發(fā)展中國(guó)家,對(duì)于血的需要尤為突出。對(duì)于發(fā)展中國(guó)家,全球血液供應(yīng)量不到40%,而卻占據(jù)了全球82%的人口。
Blood is, of course, the red liquid that makes some of us faint when we see it. It delivers oxygen and vital nutrients, such as glucose, amino acids, and fatty acids, to our body's cells. It also carries away waste products, like carbon dioxide, from our cells to keep our body clean. Seven per cent of our body weight is blood. The average adult has about five litres of blood. Our heart pumps blood around our body at high speed. It travels through a system of arteries and veins, that reach every part of our body. Our blood is made up of red blood cells, white blood cells and platelets. When we cut ourselves, it is the job of platelets to clot the blood to stop us bleeding. We all have one of four different blood types. If we are given a different blood type, we’ll die.
有人看見紅色液體(血)會(huì)出現(xiàn)眩暈情況。通過(guò)血液傳播,氧氣以及像葡萄糖、氨基酸以及脂肪酸等重要營(yíng)養(yǎng)物可傳遞到細(xì)胞中。它還可清除細(xì)胞中的廢物,像二氧化碳等廢物可通過(guò)血液清除,保持身體清潔干凈。體重的7%為血液。成人平均血液含量為五升。心臟高速運(yùn)轉(zhuǎn)血液。穿過(guò)動(dòng)脈和靜脈系統(tǒng)流經(jīng)全身。血液由紅細(xì)胞、白細(xì)胞以及血小板組成。一旦身體被劃破,血小板會(huì)幫助凝結(jié)血液,止住流血。人類共有四種血液類型。一旦血液不匹配,死亡情況就會(huì)發(fā)生。