问题 问答题

任选一个运动项目,编制一套旨在提高运动员全面技术或体能的循环练习方案,并分析其构成要素及本方法的优点。

答案

参考答案:

解析:以篮球运动员的体能训练为例: 本练习共分为5站,第一站:俯卧撑20个;第二站:快速冲刺30米;第三站:仰卧起坐60次;第四站:跳跃10个栏架;第五站:400米跑(1分20秒内完成)。各站之间间歇1分钟,循环做5组,组间间歇5分钟。 循环训练法是指根据训练的具体任务,将练习手段设置为若干个练习站,运动员按照既定顺序、路线,依次完成每站练习任务的训练方法。可有效地激发训练情绪、累积负荷“痕迹”、交替刺激不同体位。 循环训练法的构成要素有:每站的练习内容、每站的运动负荷、练习站的安排顺序、练习站之间的间歇、每遍循环之间的间歇、练习的站数与循环练习的组数。 运用循环训练法,可以有效地提高不同层次和水平的运动员的训练情绪和积极性;可以合理地增大运动训练过程的练习密度;可以随时根据具体情况因人制宜地加以调整,做到区别对待;可以防止局部负担过重,延缓疲劳的产生,并有利于全面身体训练。实践中,循环训练法中所说的“站”是练习点,如果一个循环内的站数中有若干个练习点是以一种无间歇方式衔接,那么这几个练习点的集合可称为练习“段”。因此,考虑循环练习的顺序时,有时应以练习“站”为单位,有时则应以练习“段”为单位。

判断题
阅读理解

阅读理解。

                                              Smartphone Security Blankets

     Security-for the information on your smartphone, as well as for the phone itself-is a hot topic these

days. The truth is that you're packing a lot of sensitive information on your phone, and you should keep

it safe.

When it comes to physical security, iPhone users would do well to download Find My iPhone a free

app (application program) from Apple that allows you to visit a website  and see your (lost, stolen or

misplaced) phone on a map. You can then sound an alarm, send a message that will pop up on its screen,

lock the phone or erase all your data.

     Android  does not have an exact equivalent, but there are plenty of alternatives. A free app called

Lookout  offers the find-my-phone feature. The paid version allows you to wipe the data from your

phone remotely.

     Then there is your coffee shop's WiFi network. Anyone with minimal technical expert skill can snoop

on (窥视) people using shared wireless networks, harvesting passwords and other personal data.

Lookout's apps will caution you when you've logged on to an unsecure network, but cannot protect you

once you're there.

     In order to protect yourself on such networks, you can use a virtual private network, or V.P.N. This

turns all your activity into nonsense to anyone trying to read along with you from across the Starbucks. It

also keeps websites from tracking you and, if you're traveling, allows you to get access to sites that may

be blocked in other countries.

     If you have an iPhone, the simplest V.P.N. app is probably Hotspot Shield , whose distinguishing

feature is said to be that it automatically kicks in each time you start browsing (浏览), as opposed to

other V.P.N. apps that require you to start them up manually. This matters, because even if you decide

you want a V.P.N. app, you want to spend approximately zero time thinking about it. For the most part,

that was true of Hotspot Shield, though occasionally it took a while to connect or temporarily lost

connection without warning. I found myself having to turn the app on and off sometimes, which involved

setting my phone constantly.

     If even reading about the settings on your phone drives you crazy, then it is probably best to stay

away from a V.P.N. app. But if you're the type who can't resist checking your bank balance from your

corner bar, the hassle may be preferable to the risk.                        

1. Which of the following can warn you against the unsecure network?  

A. Android.  

B. V.P.N.  

C. Lookout.   

D. Find My iPhone.

2. By using V.P.N., users can _______.  

A. find their lost phone on the Internet

B. erase all the data from the phone remotely

C. check their bank balance now and then

D. save their browsing from being tracked    

3. The underlined word "that" in Para. 6 refers to the fact that _____. 

A. a V.P.N. app kicks in automatically

B. the user starts V.P.N. apps manually

C. the app takes a while to connect

D. users spend no time thinking about it