We sit too much and it's dangerous.Most Americans spend more than seven hours（1）sittingsitting（ sit） every day.The more time you sit，the（2）weakerweaker（ weak） your body will be.Luckily，there are small changes you can make to help you to（3）keepkeep fit.
Take the stairs（4）insteadinstead/?n' sted/ of the lift.Waiting for the lift often（5）takestakes（ take） the same time as walking up the stairs. （6）SoSo why not use the chance to take some exercise？
Get up and move around the office as much as（7）possiblepossible/' p?s?bl/.When you are busy（8）withwithyour work，try to get up and do a quick walk around the office every 60 minutes.You can use the time to fill up your water bottle or go to the bathroom.
Stand up and stretch.If you have no time to walk around the office every 60 minutes，use the chance to stand up and stretch.Stretching is a great way to（9）relaxrelax /r?' l?ks/ and get your body moving.
So take care of（10）yourselfyourself（ you） and get your body moving as much as you can.
【考點】說明文；衛(wèi)生與健康．
【答案】sitting；weaker；keep；instead；takes；So；possible；with；relax；yourself
【解答】
【點評】
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發(fā)布：2024/4/20 14:35:0組卷：9引用：1難度：0.5
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Exercise is something that can help them.Experts suggest that teenagers should exercise at least five times a week.They will feel relaxed when they exercise.It can even help them to sleep better at night.
（1）What are important for teenagers to keep healthy？
（2）Who need more calories，teenage boys or teenage girls？
（3）How many hours' sleep do teenagers usually need at night？
（4）How often should teenagers exercise？
（5）Can exercise help teenagers to sleep better at night？發(fā)布：2024/12/27 18:0:2組卷：3引用：3難度：0.5 -
2．As more and more people are turning to a simple lifestyle，they would like to sell their used things at a low （1）
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A college student said， " When I want to buy books，I'll first go to the second hand markets or （3）some second-hand bookstores online.Such books are much cheaper—as much as 70 percent lower than new ones.If I'm （4）enough，I can even get books that are almost new.Since I have limited （限制） pocket money，it's a perfect choice for me. "
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A．蒼蠅
B．蜻蜓
C．蚊子
（2）We know the mosquitoes very well because.
A．they can be found easily
B．they fly here and there
C．there are many kinds of them
（3）If the mosquito doesn't bite you，it will.
A．get angry with you
B．be afraid of you
C．choose another one
（4）The mosquito bites you.
A．too quickly to let you know
B．when you're asleep
C．but doesn't like you
（5）Which of the following sentences is WRONG？
A．The itching begins after the mosquito bites you.
B．All mosquitoes like to bite people for blood.
C．Mosquitoes use blood to lay eggs.發(fā)布：2024/12/27 18:0:2組卷：3引用：2難度：0.5
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