16．Studies show that walking several times a week can lower the risk of a lot of
diseases．They include heart disease，diabetes（糖尿�。�，stroke（中風）and bone loss（骨質(zhì)疏松）．Walking can also help you lose weight．
Studies have also shown that walking for thirty minutes a day can slow down and
even prevent the development of type two diabetes．Walking several times a week is a
good way to control weight and lose body fat．Studies show it also helps reduce feelings of sadness．
Experts say walking is one of the safest ways to exereise．There is a low risk of injuries，So it is good for people who are starting an exercise program for the first time and for older people．
A walking program is easy to start．You should wear loose clothes and good shoes．There are shoes that are designed on purpose for lots of walking，Doctors say you should walk fast enough to have you breathe hard．Yet you should still be able to talk．Let your arms move freely while you are walking．
There are no rules for starting a walking program．You might walk short distances．Or you might walk up hills to strengthen your leg muscles（肌肉）．Health esperts say you can get the most from a walking program if you walk at about 6 kilometers an hour for thirty minutes a day．You should do this about several times a week．
61．Walking is one of theCways to exercise according to the passage．
A．funniest
B．worst
C．safest
D．fastest
62．Which of the following is NOT TRUE accoding to the passage．A
A．If you are over 70，you'd better not exercise walking
B．If you want to prevent yourself from heart disease and stoke，you can keep walking
C．If you want to lose weight，welking several times a week is a good choice
D．Whether you walk short distances or walk up hills，it's good for your health
63．According to the passage，which picture is RIGHT？A
64．Doctors or experts suggest that you shouldDwhen you are walking．
A．wear good shoes and tight（緊身的）clothes
B．walk as fast as you can
C．walk until you can't talk
D．walk with your arms moving freely
65．Which do you think is the best title？B
A．A Good Walking Program
B．Walking to Better Health
C．walking studies and Experts
D．Some Rules for Walking．
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