Ⅰ.阅读理解
Are you at least 17 years old? Do you weigh more than 110 pounds? Do you consider yourself fairly healthy?
If you answered yes to all of these questions, you should be donating blood every two months. In my survey of my schoolmates, I found that only 50 percent of them have ever donated blood and that only 1 out of 13 of them donate regularly. The lack of blood donors is a serious problem that requires immediate action.
According to the American Red Cross Web pages, in the United States alone someone receives a blood transfusion (输血) once every three seconds. People who benefit from donations include cancer patients as well as babies. The need for blood never takes a vacation and neither should donors.
Let me tell you about Brooke, a threeyearold girl with cancer. Brooke has spent about half of her life in the hospital receiving treatments. Her treatment will require about 500 units of blood in total, of which only 250 units have been replaced. She still needs the other half of the total amount to continue her treatment. If she doesn't receive this blood, she will not live to start kindergarten.
Examples like Brooke's are becoming all too common these days, with only 1 in 20 Americans donating blood and this number keeps dropping each year. These facts are extremely worrying considering that nearly half of us here will need blood sometime in our lives.
You can now see the seriousness of the problem with the lack of blood donations. Fortunately, it is a problem that can be easily solved. Each and every one of you can be part of the solution. All you have to do is go to the nearest Red Cross and donate your blood.
语篇解读：本文是一篇议论文。文章主要论述了义务献血的紧迫性。
1．How does the author explain the problem mentioned in Paragraph 2?
A．By answering questions.
B．By making comparisons.
C．By presenting research findings.
D．By describing his own experiences.
解析：选C 写作手法题。根据第二段中的In my survey of my schoolmates, I found that可知，作者在第二段主要是通过陈述自己的调查发现来解释说明献血者少这一问题。
2．What can we learn from the American Red Cross Web pages?
A．The suffering of patients.
B．The strong need for blood.
C．The efforts of the Red Cross.
D．The benefits of taking vacations.
解析：选B 推理判断题。根据第三段中的in the United States alone someone receives a blood transfusion (输血) once every three seconds和The need for blood never takes a vacation不难看出市场对血液的强烈需求。
3．What is the purpose of the text?
A．To persuade people to donate blood.
B．To present some new medical results.
C．To call on people to save a little girl.
D．To explain the risks of blood donation.
解析：选A 写作目的题。通读全文可知，本文的目的是劝说人们义务献血。
