短语讲解：
1. And in one recent year in Florida - the U.S. state with the largest per capita elderly population - drivers over 80 plowed into a Chinese restaurant, post office and state official’s office.
per capita照人数分配的,每人
例句：Many countries precede ours in per capita income.
许多国家的人均收入超过我国。
2. None fell asleep at the wheel, had been drinking, or was taking strong medications.
fall asleep入睡，睡着
例句：Don't cry, the sick have fallen asleep.
别叫喊，病人已经入睡了。
3. Few elderly drivers willingly hand over their keys.
hand over交出; 交付; 交给
例句：The material was handed over to the department just in time.
材料及时地交给了有关部门。
4. The goal, they say, is not to take drivers off the road and give them one more reason to be depressed about getting old.
take off中止，中断；停止(演出)，取消；(使火车、公共汽车等)停运
例句：The early morning train is being taken off for the summer.
早班火车夏季将停运。
