Hello, everyone. First let me introduce myself. My name is Jenny Barker, and I work at St. James Hospital. As most of you know, I’m here today to talk about blood transfusion. The idea of blood transfusion is very simple, but that idea has saved many thousands of lives over the past century. Often, if a person is in an accident, or has an operation, he will lose a lot of blood. And these are times when blood transfusion is needed. This simply means taking blood from another person and putting it into the body of the patient. Doctors have been carrying out blood transfusions for hundreds of years. At first, they used blood from sheep. But that wasn’t very successful. It wasn’t until the last century that doctors realized there are several types of blood, and that the correct type must always be used. Once they knew that, blood transfusion had become almost a hundred percent successful. So, you might be thinking: what does this have to do with me? Well, it has something to do with all of us. Hospitals need to keep banks of blood ready for transfusion. The only way they can get that blood is from ordinary people like you. All the human body has five liters of blood, and we take 0.5 liters from each person. This is completely safe. In fact, your body will make enough blood to replace it after around a day. Giving blood only takes a short while, and it doesn’t hurt. It costs you nothing, and it could save a life. So please give blood.

66. What might the speaker most probably be?

  A. A doctor or a nurse.      B. An engineer.              C. A teacher.                 D. A scientist.

67. What is a blood transfusion?

  A. Losing a lot of blood in a serious accident or a difficult operation.

  B. Finding out the amount of blood a patient needs for an operation.

  C. Identifying the right type of blood a person has for the patient.

  D. Taking blood from someone else and putting it into a patient’s body.

68. What finally made almost every blood transfusion successful?

  A.       The founding of a blood bank.                           B. The discovery of blood types. 

  C. The experiment with sheep blood.                            D. The developed skill of taking out blood.

69. If you give 10% of your blood, how long does it take your body to replace it?

  A. One week.                   B. Five days.                 C. Two days.                D. One day.

70. What is the main purpose of the speech?

  A. To call on people to give blood.                 B. To explain what a blood transfusion is .

  C. To review the history of research on blood. D. To explain the theory of blood replacement.