单词拼写（共10小题，每小题1分，满分10分）
A.根据首字母写出正确的单词形式。
1. As the rocket rose into the air, we were pushed back into our seats because we were trying to e________ the pull of the earth’ gravity.
2. It is better for patients to live in an a________ of peace and calm in the
countryside.
3. Cigarette smoking m________ the risk of cancer.
4. She didn’t mean to hurt you. On the c_____, she was very kind.
B.根据中文和首字母提示写出正确的单词形式.
5. His illness a________ (解释) for his absence. That’s why he hasn’t turned up now.
6. The latest information c________ (使…坚信) him in the belief that we will surely win.
7. A knowledge of economics is f________（基本的）to any understanding of this problem.
C.用括号内的单词的正确形式填空:
8. He has made ________ (persist) efforts to realize his dream.
9. It is said that they have got the first place in the competition but they will be ________ (official) informed next Monday.
10. His work is ________ (impress) and we all admire him very much.