首页
登录
职称英语
[originaltext] We think of aerobics as being a high impact activity but actu
[originaltext] We think of aerobics as being a high impact activity but actu
游客
2023-08-12
71
管理
问题
We think of aerobics as being a high impact activity but actually aerobic exercise by definition means we practice the same large muscle group, rhythmically, for a period of 15 to 20 minutes or longer while maintaining 60-80% of your maximum heart rate. Think of aerobic activity as being long in duration yet low in intensity. You should be able to carry on a short conversation while doing aerobic exercise. Aerobic exercise conditions the heart and lungs by increasing the oxygen available to the body and by enabling the heart to use oxygen more efficiently. The aerobic curve occurs when you begin exercising, increase your intensity level, hit the high point and gradually decrease your intensity level. The goal when exercising aerobically is to hit your target heart rate and maintain it for the entire exercise session. This works the heart muscle more effectively and burns more calories. You start, hit your target zone, then you maintain your pace until the cool down. As your heart becomes conditioned, you will have to work harder to reach the target zone. If you are too tired to continue exercising in an aerobic class, march in place for a while until you can resume exercising. It is not OK to stop in the middle of an aerobic class because your body is sending extra blood to the muscles. Stopping suddenly can lead to muscle cramping and dizziness.
12. What do we know about aerobics from the passage?
13. What will happen when we are doing aerobic exercises?
14. What is the goal of aerobics according to the speaker?
15. What does the speaker suggest we do when we are tired in an aerobic class?
选项
A、It’s a low impact activity and no one wants to do it
B、It helps us practise the same large muscle group rhythmically.
C、It’s a dangerous and unendurable exercise.
D、It’s not good to the heart.
答案
B
解析
文章开篇就介绍了什么是有氧运动,B与此一致。
转载请注明原文地址:http://tihaiku.com/zcyy/2919367.html
相关试题推荐
[originaltext]IcouldneverhadimaginedwhatIwouldachievethroughfootb
[originaltext]IcouldneverhadimaginedwhatIwouldachievethroughfootb
[originaltext]IcouldneverhadimaginedwhatIwouldachievethroughfootb
[originaltext]Inaway,allofusareonaspaceship—theplanetEarth.[13]
[originaltext]Inaway,allofusareonaspaceship—theplanetEarth.[13]
[originaltext]Inaway,allofusareonaspaceship—theplanetEarth.[13]
[originaltext]Inaway,allofusareonaspaceship—theplanetEarth.[13]
[originaltext]Tobesuccessfulinajobinterview,youshoulddemonstratec
[originaltext]Tobesuccessfulinajobinterview,youshoulddemonstratec
[originaltext]Tobesuccessfulinajobinterview,youshoulddemonstratec
随机试题
Thehumannoseisanunderratedtool.Humansareoftenthoughttobeinsensi
[originaltext]M:Iheardyouhadabarbecuedownatthebeach.How’ditgo?W:I
Themanagertriedtocreateasituation______(让所有在场的人都感到轻松自在).inwhichallpeopl
MaunaKeainHawaii:AstronomyontheWorld’sHighestIslandMountainFo
奖金和期权属于( )。A.工资 B.薪水 C.基本报酬 D.可变报酬
电磁干扰有传导干扰和辐射干扰两种。()
2016年面试热点:“我和微信的故事”朋友圈刷屏被谣言 面试热点相关背
资产评估的工作原则不包括()。A.公正原则 B.客观原则 C.预期收益原则
将一盏电灯放在桌子中央代表太阳,在离电灯大约1米远的桌边放一个地球仪代表地球,拨
下列化合物的水溶液强烈振摇后,会产生持久性的泡沫的是A.醌类化合物B.黄酮类化合
最新回复
(
0
)