五、词汇运用

（一）根据汉语或首字母提示用所学单词的正确形式完成下列句子。（每小题1分，共10分）

1. The manager said to the worker, “Get to work or ______________ (辞职) right now.”

2. The professor instructed his students to ______________ (服从) the experimental rules.

3. What is the chief cause of ______________ (离婚) between Jack and Mary?

4. Don’t play with the ______________ (锋利的) knife, as you might hurt yourself.[

5. The cup isn’t made of ______________ (纯的) gold; it is mixed with other metals.

6. At night I like to look at the ______________ (遥远的) stars in the clear sky by myself. 7. You should have to ______________ (操作) the machine by winding this handle.

8. I hope this summer holiday will be ______________ (有益的)to your study.

9. He earns $ 2000 a month. That is to say, his a______________ income (收入) is $ 24000.

10. The warm-hearted woman is willing to d______________ some money to the poor child.

一名女青年，X线钡剂造影检查回盲部显示盲肠不规则挛缩，黏膜皱襞粗乱及多发性小龛影，应该诊断为（）

A.回盲部溃疡型癌

B.结肠克罗恩病

C.回盲部溃疡型结核

D.回盲部阿米巴病

E.过敏性结肠炎