课时作业(三十七) [选修8 Unit 2 Cloning]
(限时：45分钟)
Ⅰ.语法填空
Many years ago, when I worked as a volunteer at Stanford Hospital, I got to know a little girl 1.________ (name) Lisa who was suffering from a rare and serious disease.Her only chance of recovery appeared to be a blood transfusion 2.________ her fiveyearold brother, 3.________ had miraculously (奇迹般地) survived the same disease and had developed the antibodies (抗体) needed to fight the 4.________ (ill)．
The doctor explained the situation to her little brother, and asked the boy 5.________ he would be willing to give his blood to his sister.I saw him hesitate for only a moment before taking 6.________ deep breath and saying, “Yes, I'll do it if it can save Li sa.”
As the transfusion progressed, he lay in a bed next to his sister and 7.________ (smile), as we all did, seeing the color returning 8.________ her cheeks.Then his face grew pale and his smile faded.He looked up at the doctor and asked with a trembling voice, “Will I start to die right away？”Being young , the boy had 9.________(understand) the doctor; he thought he was going to have to give he r all 10.________ blood.
Ⅱ.阅读理解
A
