血液的重要性  

EVERYONE NEEDS BLOOD

作　　者：Ruth Devlin 

机构地区：[1]不详

出　　处：《空中英语教室（初级版．大家说英语）》2024年第8期16-18,51,52,共5页Studio Classroom Let's Talk in Englisd

摘　　要：血液在我们的体内输送氧气,它还具备其他功能。每个人的体内都有4升左右的血液。如果你受伤失血,就可能需要输血。你要是接受手术,也可能需要额外的血液,这时就可以从血库获取血液。许多人都会献血给血库,血库把血液储存起来,等到有人需要时再提供给他们。不过,血液不是完全都一样,每个人各有不同的血型。血型主要分为4种,分别是A型、B型、O型与AB型。你如果需要输血,就必须获得与自己血型相匹配的血液。Blood moves oxygen around our bodies and does other things,too.Each person has about four liters of blood.If you get hurt and lose blood,you may need more.If you have an operation,you may need extra blood.You can get blood from blood banks.People donate blood to blood banks.They store blood until people need it.But all blood is not the same.Everyone has a blood type.The four main blood types are A,B,O and AB.When you need blood,you must get your type of blood.

关 键 词：献血 血型 血液储存 血库 输血 AB型 重要性 

分 类 号：R44[医药卫生—诊断学]