When you ______ your health, you are less worried about getting ill and not being able to support your family.
A、insure
B、assure
C、ensure
D、secure
【正确答案】：A
【题目解析】：本题考查动词词义辨析。insure,assure,ensure和secure都有保证，确保之意。然而insure强调在事情发生前采取必要的措施，比如用金钱，常用于谈论购买保险；assure常指消除某人脑海中的疑问和焦虑e.g.I assure you,it will be alright.；ensure保证某事e.g.I will ensure the report reaches the boss tomorrow.；secure：强调保护采取必要的行动前以免受到攻击或遭受损失e.g.you home will be secure if you install analarm.因此A最适合原句。答案为A。
