单词拼写（共10题，每小题1分；满分10分）
根据下列句子及所给汉语注释或单词首字母，在句子右边的横线上，写出空缺处各单词的正确形式。（每空只写一词）
66. He became a top sportsman at some ________（牺牲）to himself, for example, by training very hard, giving up many pleasures, etc.
67. They say such unkind things about you just out of ______________（嫉妒）。
68. Today there are more opportunities for disabled people to develop their _________（潜力）.
69. On _______（平均），people who don’t smoke are healthier than people who do.
70. He ______（按下）the button and the doorbell rang.
71. It is said Yogo is of great b___________ to human health.
72. I washed and _______（剃须）, then hurried out of the house.
73. The thunder is a natural _____________________（现象）.
74. The local c       is francs（法郎）
75. Those who wanted to enter the USA must go through both m        and physical tests.