[单项选择]People, young and old, ought to take physical examinations at regular intervals so as to know their own health.
A. 不管是年轻的还是年老的，都必须在一段时间内进行体检，以了解自己的身体状况。
B. 无论年轻人还是老年人都应该按规定检查身体，以确保自己的健康。
C. 年轻人还是老年人都应该坚持体育锻炼，直到确保自己健康为止。
D. 老人也好，年轻人也好，都应该定期检查身体以了解自己的健康状况。

[单项选择]People ought to take physical examinations at regular intervals so as to know their own health.
A. 人们必须在一段时间内进行体检，以了解自己的身体情况。
B. 人们应当按规定进行体检，以确保自己的身体健康。
C. 人们应当进行体育锻炼，以确保自己的身体健康。
D. 人们应当定期检查身体以了解自己的健康状况。

[单项选择]

Most young people enjoy some forms of physical activity. It may be walking, bicycling, or swimming, or in winter, skating or skiing. It may be a game of some (36) -- football, hockey, golf or tennis. It may be mountaineering.
Those who have a passion for (37) high and difficult mountains are often (38) with astonishment. Why are men and women willing to (39) cold and hardship, and to take risks on high mountains This astonishment is caused, (40) , by the difference between mountaineering and other forms of activity to (41) men give their leisure. Mountaineering is a sport and (42) a game. There are no man-made roles, (43) there are for such games as golf and football. There are, (44) rules of a different kind which it would be dangerous to (45) , but it is this freedom from man-made rules that makes mountaineering (46) to many people. Those who climb mountains are (47) to use their own met
A. for example
B. then
C. perhaps
D. of course