Question

13．If you are sitting，please stand up．Move your legs．Touch your toes if you can．Do anything but sit．New research shows that if you cut down on the time you spend sitting，you might live longer．Sitting less than three hours a day might extend（延長） your life by two years．Cutting television time to less than two hours a day can add one point four years to life．
The human body is designed to move．The fact is just the opposite．Modern lifestyles and office jobs don't give us the chance to move around．We sit while we're eating； we sit in the car； we sit while we are watching TV．And most of us sit for many hours at work．Sitting is something we do all the time．On average，Americans sit for four and a half to five hours a day．But that does not make sitting good for us．
You may exercise often．That does not mean you can sit for the rest of your waking hours．We can't throw away physical activity．It is extremely important．Eve if you exercise for 30 minutes a day，what goes on in the other 23 and a half hours a day is also very important．
Changes are coming to some offices，especially in the design of desks．A"standing desk"lets people stand while they work．Another new design is called the"treadmill desk"．It is an exercise machine that lets you walk slowly in one place．Even some U．S．schools begin to experiment with desks that are part bicycle to keep children moving．
Many companies may not buy a standing desk for everybody．However，they may get five standing desks or a treadmill desk for their employees and put them in a certain place where people can go for an hour a day to answer their emails or talk on the phone．Experts suggest some other activities：take a walk at lunchtime； walk to the offices and talk directly instead of emailing colleagues（同事）．All these activities may help you live longer．
4．Why should people stand up according to the new research？D
A．They should touch their toes．
B．Standing more can cure some diseases．
C．They spend too much time watching TV．
D．Sitting less does people good and may help people live longer．
5．What can we learn about sitting？C
A．Sitting is the best position for the body．
B．The more people sit，the better they will be．
C．People usually have to sit for a long time nowadays．
D．Americans sit longer every day than people in other countries．
6．What does the underlined word"It"in Paragraph 3 refer to？A
A．Exercising．B．Sitting．C．Standing．D．The walking hour．
7．Which of the following is TRUE according to the passage？B
A．The"treadmill desk"is used by people to run．
B．The new design of desks can help people sit less．
C．It's better for school students to use standing desks．
D．It's necessary for companies to offer a sitting desk to every employees．

Answer 1

分析 長時間坐對人們的健康有很大的危害，而現(xiàn)代生活方式讓人們長時間坐著．為了改變這一情況，人們發(fā)明了新式的椅子，這種椅子可以讓人們站著工作，以提高人們的健康水平．

解答 4．D．細節(jié)理解題．由第一段If you cut down on the time you spend sitting，you might live longer，你坐的時間越少活得越長，本文在號召人們少坐，故選D．
5．C．細節(jié)理解題．由第二段We sit while we're eating； we sit in the car； we sit while we watch TV．Many of us sit for many hours at work．吃飯時坐著，在車里坐著，看電視坐著，我們工作時花費數(shù)小時坐著，可知坐很普遍，故選C．
6．A．詞義猜測題．根據(jù)本段前兩句Though you may exercise often，that does not mean you can sit for therest of your waking hours．We can't throw away physical activity．可知即使你經常鍛煉，也并不意味著你就可以坐很長時間．鍛煉對我們很重要，但是鍛煉之外的時間也很很重要．所以本句中的it就是指"exercising"，故A項正確．
7．B．理解判斷題．由倒數(shù)第二段It is an exercise machine that lets you walk slowly in one place．可知這個機器會使你慢慢的走在一個地方，即減少坐的時間，故選B．

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