首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
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、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
admin
2016-04-03
21
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.
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://kaotiyun.com/show/12G7777K
0
大学英语六级
相关试题推荐
A、Partiessuggestcandidatesforoffice.B、Thetwomajorpartiesoftenhavethesameplatform.C、Politicalpartiesusemoneyfro
A、Becausetheycan’taffordto.B、Becausetheythinksmallhousesaremorecomfortabletolivein.C、Becausebighousesareusua
A、Yesterdaybeforedinner.B、Twodaysago.C、Lastweekend.D、Oneweekago.D
A、Yesterdaybeforedinner.B、Twodaysago.C、Lastweekend.D、Oneweekago.D
A、Theytrytogivestudentsopportunitiesforexperimentation.B、TheyareresponsiblemerelytotheirMinistryofEducation.C、T
A、Savingenergy.B、Collectinginformation.C、Increasingspeed.D、Improvingperformance.B
Virtuallyunknownadecadeago,bigonlineteachereducationprogramsnowdwarftheirtraditionalcompetitors,outstripping(超过)
Alltoooften,peopleapproachtheirworkcareershaphazardly,waitingforopportunitiestopresentthemselves,hopingtofalli
Theneedforbirthcontrolmethodshasdevelopedfairlyrecently,withthedesireamongmanywomentobeableto【B1】_____whenth
A、Powerplantsburncoal.B、Factoriespoursewage.C、Peopleburytrashunderground.D、Citypopulationincreasesgreatly.A
随机试题
试回答下列道路交通标线工程质量检验评定问题。《公路工程质量检验评定标准第一册土建工程》(JTGF80/1—2017)中,交通标线应符合的基本要求为()。
某公司有5名顾问,每人贡献出正确意见的概率均为0.6,若对某事征求顾问意见,并按多数人意见决策正确的概率是__________.
正常成人的甲状旁腺的解剖,下列哪一项是错误的
一奶牛采食大量山芋藤后发生瘤胃积食,采用保守治疗后无效,现对其进行手术治疗。该手术中由无菌向有菌转变的操作是
企业法律顾问的工作原则包括:()。
[背景资料]某中型水库主坝为黏土心墙砂壳坝,心墙最小厚度为1.2m,其除险加固的主要工程内容有:①上游坝面石渣料帮坡;②完善观测设施;③坝基、坝肩水泥帷幕灌浆;④新建坝顶混凝土防浪墙;⑤增设混凝土截渗墙;⑥下游坝面混凝土预制块护坡;⑦新建坝
证券公司对客户买卖证券的收益作出承诺的,可采取的处罚措施有()。Ⅰ.没收违法所得,并处以5万元以上20万元以下的罚款Ⅱ.暂停或者撤销相关业务许可Ⅲ.对直接负责的主管人员给予警告Ⅳ.可以撤销直接负责的主管人员的
关于长期劳动力需求的说法,正确的是()。
肉________食べないで、野菜も食べたほうがいいですよ。
Newtechnologylinkstheworldasneverbefore.Ourplanethas【B1】______.It’snowa"globalvillage"wherecountriesareonlysec
最新回复
(
0
)