根据以下资料，回答下面试题。
People need to be active to be healthy.Our modem lifestyle and all the conveniences we've become used to have made us sitting much of the time - and that's dangerous for our health.Sitting around in front of the TV or the computer, riding in the car for even a short trip to the store and using elevators instead of stairs, all contribute to our inactivity.Physical inactivity is as dangerous to our health as smoking!
Add up your activities during the day in periods of at least 10 minutes each.Start slowly ...and build up.If you're already doing some light activities move up to more moderate ones.A little is good, but more is better if you want to achieve health benefits.
Scientists say add up 60 minutes of physical activity every day to stay healthy or improve your health.Time needed depends on effort - as you progress to moderate activities, you can cut down to thirty minutes, four days a week.
Physical activity doesn't have to be very hard to improve your health.This goal can be reached by building physical activities into your daily routine.Just add up in periods of at least ten minutes each throughout the day.After three months of regular physical activity, you will notice a difference - people often say getting started is the hardest part.
(From Handbook for Canada's Physical Activity Guide to Healthy Active Living p.4.Canadian Society for Exercise Physiology, Ottawa, Ontario, 1998)
44.Nowadays people __________.
A. are less active than in the past
B. are more active than in the past
C. are sitting as much as they used to be
D. are sitting as less as they used to be
答案：C
解析：第一段，我们已经习惯于现代生活带给我们的方便，这些方便使我们总是坐着。这段后半部分给了一些例子。
45.Time needed for physical activity depends on __________.
A. health
B. effort
C. money
D. kinds of activities
答案：B
解析： 第三段，科学家说每天的运动时间叠加起来60分钟会使你保持健康或改善你的健康。运动时间的长短依据你的努力。
46.You can improve your health by __________.
A. bringing physical activity into your timetable
B. eating less and less during short periods of time
C. relaxing and keeping coolD.
D.getting as many activities as you can
答案：A
解析： 第四段，运动并不难，只要把运动加入到日常生活当中，使其成为生活的一部分就可以达到目的。
47.People say that __________
A. they do not have time for physical activity
B. they do not know the suitable physical activity
C. getting into physical activity is not so difficult
D. getting into physical activity is the most difficult part
答案：D
解析： 最后一句话，人们认为万事开头难。
2017成考试题：2017年成人高考专升本英语考试备考试题及答案
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