Office workers should know that long periods of sitting at your desk may be a killer. Scientists have shown a new threat from this lifestyle that they call  “muscular inactivity (肌肉迟钝)”．

Sitting still for long periods of time leads to the buildup of substances (物质) in the blood that are harmful to health. And exercise alone won’t drive them away.

Millions of people spend their days between car，office desk and the sofa in front of the TV. While the bad influences are well rocognized，it has been thought that they can be changed by regular trips to the gym or swimming pool.

Now researchers say that is not enough. In addition to regular exercise，office workers need to keep moving while they work，by making regular trips to the printer，coffee machine or to chat with workmates.

Elin Ekblom­Bak，an expert on health，says research shows long periods of sitting and lack (缺乏)  of “whole body muscular movement”  are strongly linked to obesity，heart disease and cancer，and a higher risk of death，regardless of (不管) whether they take enough exercise.

“Everyone knows about the health benefits of regular exercise. But what we haven’t realized before is that long­period sitting down carries an extra risk that cannot be dealt with by taking exercise，” Dr Ekblom­Bak said，adding that sitting still should be recognized as a risk to health.

“It is important to have a five­minute break from desk work every 45 minutes. Don’t email workmates—walk across the office to give them the message. Take a coffee break or put the printer in the next room. I am a desk worker and I try to do it. It is not difficult but sometimes you get lost in your work and you forget about it.”

However，more studies are needed to confirm the ill effects of sitting for too long and ways of fighting them. But at present they conclude that  “keep moving”  should be added to the advice to “keep exercising.”

1.Nowadays，many office workers wrongly think that________.

2.What does the author suggest office workers should do?

3.The last paragraph suggests that the result of the study is________.

4.What would be the best title for the passage?

短文改错（共10小题；每小题1分，满分10分）

Once there lived a man who was such lazy that no job was fit him. In order to make a living he went to the neighbor of his for help one day. The neighbor advised to him to be a grave caretaker as it is the easiest job one could find. The lazy man was delighting and soon became a grave caretaker. And to everybody’s surprise he gave up his job three days before he got it. “It’s unfair.” He said to the neighbor angry. “In the grave all the others are lying still when I am the only one who has to stand.”

The New York Times published an article recently that shows great regret for the "death of conversation"．It suggests that while technology such as cell phones, e-mails, and Internet posting makes us feel more  36  than ever, they’re also driving us  37  from people around us．

Users get final connectivity  38  the price of  39  face-to-face conversation. Sherry Turkle, author of the article in The New York Times says people are  40  to a different way of being “alone together”．

Actually ,  41  text messages or writing micro-blogs allows us to  42  thoughts.

 43  bits and pieces of online cannot  44  a “real conversation．” Lan Guo, 19, a freshman English major from Changsha University , said that she would like to hear people’s tone of voice and see their faces in a (n)  45 . “The give and take of ideas in a conversation sharpens our minds.” she said. She also mentions that  46  ourselves in mobile technology reduces our chance of starting conversations with strangers and  47  people．

Turkle mentioned the popular  48  of “I share, therefore I am ”among this generation. Liu Xuan, a young writer from Taiwan and psychology graduate from Harvard University, thinks it’s a mindset adopted by most young people. They are so busy creating or polishing their online persona (网络人格)that they forget how to live a (n)  49  life. For example, They may  50  more about blogging about attending a party rather than enjoying being  51 .

 52 , experts remind us that it’s unfair to blame mobile technology . Chen Chen, a sociology expert at China Youth &Children Research Center, points out that it is still owners of gadgets , such as cell phones and tablets , who’re avoiding personal  53 . We take advantage of these devices to hide ourselves  54  others. Texting messages or calling may be a (n)  55  to avoid contact with others, such as having eye contact. “Only by strengthening conversation can we understand each other. Simply throwing away the mobile gadgets is not a solution.” she said．

1.A．received               B．shared               C．connected          D．respected

2.A．off                    B．back                 C．away               D．down

3.A．beyond                 B．at                   C．for                D．above

4.A．having                 B．risking              C．sacrificing        D．sharing

5.A．related                B．committed            C．devoted            D．accustomed

6.A．sending                B．getting              C．reading            D．taking

7.A．change                 B．exchange             C．deliver            D．raise

8.A．So                     B．And                  C．Or                 D．But

9.A．indicate               B．replace              C．cover              D．involve

10.A．conversation          B．computer             C．party              D．Internet

11.A．abandoning            B．joining              C．burying            D．attaching

12.A．interviewing          B．introducing          C．knowing            D．meeting

13.A．feeling               B．concept              C．fact               D．truth

14.A．colorful              B．interesting          C．real               D．meaningful

15.A．worry                 B．care                 C．ask                D．debate       

16.A．there                 B．out                  C．down               D．in

17.A．Therefore             B．Altogether           C．Instead            D．However

18.A．information           B．space                C．contact            D．management

19.A．from                  B．of                   C．behind             D．under

20.A．approach              B．source               C．result             D．excuse

It’s unfair! You sit there, listening to me, _____ I stand here, teaching you.