【导语】中国教育在线成人高考频道根据《全国各类成人高等学校招生复习考试大纲》收集整理了2021年成人高考高起点《英语》模拟题以供考生参考，具体如下：
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2021年成考高起点《英语》考前训练第四套及答案（6）
B
The human body naturally prevents attempt( 企 图 )to lose or gainweight.Thus the best way to lower your weight is to do some exercise daily.Although scientists don’t agree exactly how this works to lower the“setpoint”，they do know that exercise helps your body work with you and not against you in at least the following ways：
1.Exercise burns calories(卡路里)：if you walk two miles every day， you use an extra 1400 calories a week—and lose about a pound in two weeks.
2.Exercise helps to bum fat and build muscle：since muscle requires more calories than fat does，the more muscle you have，the faster you will bum calories.
3.Finally exercise speeds up your metabolism(新陈代谢)，not just while you’re exercising，but for several hours after exercise ends. A program of light-to-moderate exercise done for only a half-hour a day is enough to keep your“setpoint”lowered，and thus helps you lose weight and keep it off.If you need to lose more than five pounds ，combine regular exercise with a moderate reduction in calories until you reach your goal(目标).
40.Scientists don’t________.
A.think exercise helps people's bodies work against them
B.agree exercise helps to lower people's weight
C.bilieve in exercise at all
D.think exercise helps people's bodies work with them
答案：A
41.Exercise helps you________.
A.save calories and gain weight
B.save calories but lose weight
C.bum calories and lose weight
D.burn calories but gain weight
答案：C
42.When you walk________.
A.slowly，the fat in your body increases
B.1ess，you build more muscles
C.faster，you bum less calories
D.fast，the fat in your body reduces
答案：D
43.Which of the following is NOT true?
A.A man of more muscles burns calories faster.B.Exercise speeds up your metabolism even after it.
C.An hour and a halls exercise is not enough to keep your“setpoint” lowered.
D.To lose more than 5 pounds，just doing exercise is not enough.
答案：C
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