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
2024-04-15
7
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. [21] 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. [22]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.
19. What do we know about aerobics from the passage?
20. What will happen when we are doing aerobic exercises?
21. What is the goal of aerobics according to the speaker?
22. 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:https://www.tihaiku.com/zcyy/3556438.html
相关试题推荐
[originaltext]Therehavebeenmanygreatinventions,thingsthatchangetheway
[originaltext]Therehavebeenmanygreatinventions,thingsthatchangetheway
[originaltext]Tobeaddictedtocigarettesmeansthatyourbodycomestoneedt
[originaltext](16)Lionsprefertoeatwithouthavingtodomuchwork.Whenres
[originaltext]M:Hello,Miss.Whatbringsyouheretoday?W:(13)Iamnotfeel
[originaltext]W:Hi.M:Hi,I’mgoingdoortodoortonighttotellpeopleabout
[originaltext]W:Hi.M:Hi,I’mgoingdoortodoortonighttotellpeopleabout
[originaltext]W:Hi.M:Hi,I’mgoingdoortodoortonighttotellpeopleabout
[originaltext]W:IheardMarilyn’sgoingtocollege.What’sshestudying?M:Sh
[originaltext]W:IheardMarilyn’sgoingtocollege.What’sshestudying?M:Sh
随机试题
ManagementinCyberspaceVirtualrealityisoftenusedt
OntheImportanceofBeingGratefulForthispart,youareallowed30minut
Onenightintheearly1600sGalileogottiredofusingthenewfangled(新花样的)
砖在砌筑前一天必须浇水进行湿润,普通砖、空心砖,其含水率应控制在()。A.0
B
在目前中国房地产经纪业中,最主要的代理业务是()。A:买方代理 B:卖方代理
水箱中的水经一扩散短管流到大气中,如图17所示。直径d1=100mm,该处绝对压
从理论上讲,如果利率水平一直不变,债权人在债券期满之前将债券转让获得的差价就是
在调查—分析—决策基础之上的偏离—纠偏—再偏离—再纠偏的工程造价控制属于()。A
由于承包商原因引起的延误一般是由于其管理不善所引起。比如计划不周密、组织不力、指
最新回复
(
0
)