2015年12月英语六级听力VOA常速练习21

英语自学网

    听力部分一直以来都是同学们考试时的难点，也是吐槽最多的部分。想要早点为下半年的四六级考试做准备就来四六级考试网练习一下英语六级听力题吧，考虑六级听力的特点，我们特别准备了VOA的常速听力材料哦。
　　

20160513105357229.gif

听力音频点击下载.mp3

20160513105357977.gif

听力材料：
　　Sepsis can be triggered by pneumonia, surgery,even childbirth. Symptoms include fever, increasedbreathing, and confusion. The body’s defensesystem goes out of control, causing widespreadinflammation, organ failure and septic shock, whereblood pressure drops to a dangerously low level.
　　Scientists at Harvard University’s Wyss Institute are working on a new dialysis system thatcleans the blood of poisonous pathogens before they trigger that deadly inflammatoryresponse.
　　The current standard of therapy is to give antibiotics and fluids. But what we are talkingabout here is treatment for sepsis.
　　The researchers are filtering blood through a tube with tiny mesh fibers coated with anengineered protein called fcMBL. They bind to the cell wall of bacteria, of fungi, of manyviruses and many parasites and they bind to toxins as well.
　　Mike Super described the procedure. We’re coating the inside of the tubes with that proteinand we are running the infected blood from the patient through that, through the filter andbinding, absorbing, capturing the pathogens that are in that blood, so that the blood that isgoing back to the patient after the dialysis is cleansed.
　　In a trial phase using rats, the dialysis treatment was more than 99 percent effective infiltering out deadly bacteria. The research team hopes to begin human trials soon, in hopes ofsaving millions of lives around the world.
　　1.bind to 结合
　　例句：These may bind to receptor molecules on thesurfaces of cells.
　　这些可能会在细胞表面和受体分子结合在一起。
　　2.blood pressure血压
　　例句：He is being constantly monitored with regular checks on his blood pressure.
　　他被实时监测，定时量血压。
　　3.cell wall 细胞壁
　　例句：The combined cell then generates a new cell wall.
　　这样一来,已混合的细胞就会长出新的细胞壁.
　　4.coat with涂抹
　　例句：Coat the fish with seasoned flour.
　　用拌有佐料的面粉将鱼裹上。