Sitting for hours at a time is dangerous and can even lead to death.Today，however，many people spend more time sitting than sleeping.
Researchers say that all the time spent at the desk，at the computer，or in front of the television is taking years off your life.Ancient humans spent their days hunting，working，and moving from place to place.So being active is what our bodies are designed for.As a rapid reaction （反應(yīng)） to this discovery，many people have begun using standing desks.However，this really isn't an answer to the question.
A standing desk is a desk specially designed for use without a chair.There are many kinds of them，including normal work desks and special standing computer desks.Researchers say that simply standing instead of sitting won't make your body much better.Standing only costs a few more calories than sitting and places more stress on your joints （關(guān)節(jié)） and back.The best way is to actually move around more.Take a walk around the office every half an hour.You can also walk over to your colleagues and talk to them instead of sending emails.
These are just a few ways to start moving more while at work.Outside of work，of course，be sure to do plenty of exercise.
（1）What did ancient humans do in the daytime？ DD
①Hunt.
②Work.
③Sit.
④Move.
A．①②③
B．②③④
C．①③④
D．①②④
（2）What does the underlined word "them" in paragraph 3 refer to？ CC
A．Normal work desks.
B．Standing computer desks.
C．Standing desks.
D．Some chairs.
（3）The underlined word "colleagues" probably means " BB".
A．people who you study with
B．people who you work with
C．people who you live with
D．people who you exercise with
（4）Which of the following does the writer probably agree？ BB
A．Using standing desks is a good way to keep healthy.
B．People should be active both at work and after work.
C．Most people spend more time standing than sleeping.
D．The best way to communicate with others is to send emails.
（5）What does the text mainly tell us？ AA
A．Not to sit all day long.
B．The best way to exercise.
C．How to use a standing desk.
D．A new study on ancient humans.
【考點(diǎn)】說明文；衛(wèi)生與健康．
【答案】D；C；B；B；A
【解答】
【點(diǎn)評】
聲明：本試題解析著作權(quán)屬菁優(yōu)網(wǎng)所有，未經(jīng)書面同意，不得復(fù)制發(fā)布。
發(fā)布：2024/8/16 15:0:1組卷：15引用：1難度：0.5
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