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Mostkidslikeplayingcomputer.Theyspendmuchtimesittingatthecomputer,doingtheirschoolworkorplayinggames.Butusingacomputer(41)canbetoughonyourbody.How?Sittingforalongtimeinpositionsthataren'tnaturalfory
题目详情
Most kids like playing computer.They spend much time sitting at the computer,doing their schoolwork or playing games.But using a computer(41)___can be tough on your body.How?
Sitting for a long time in positions that aren't natural for your(42)___can strain(扭伤) your hands,wrists,back,and eyes.Over time,this can result in pain.
Sitting Square in Your Chair.
The way you sit is important.Sit square in your chair,put your behind in the center(43)___the seat.Your legs should bend(弯曲) at the knees and rest on the floor.Most kids are too(44)___to do this,so use a box of books to place under their feet.
Sit and make sure your back(45)___the seat back the whole time.Try not to slouch (低头松肩地坐) or lean over the keyboard while you type.A chair that has lower-back support can help you do this.
Typing Time
When you type,make sure your elbows are bent at 90-degree angles.Your wrists should be straight,not angled up or down so your fingers rest gently on the keys of the keyboard,(46)___it feels like you have to stretch(伸∽长) your fingers to reach the keyboard,move it(47)___to you.
All Eyes on this
Any time you're using the computer,your eyes are hard at work.But be kind to them by putting the monitor 18to 20inches away from your face.At this distance,you shouldn't have to lean in to read (48)___ is on the screen.
Take a Break
Kids(49)___sit at a computer for more than 30minutes without a break.Remember to have a rest.When it's time for a break,start with your eyes.Focus on (50)___far away by looking out of a window.This gives your eyes a rest.
Sitting for a long time in positions that aren't natural for your(42)___can strain(扭伤) your hands,wrists,back,and eyes.Over time,this can result in pain.
Sitting Square in Your Chair.
The way you sit is important.Sit square in your chair,put your behind in the center(43)___the seat.Your legs should bend(弯曲) at the knees and rest on the floor.Most kids are too(44)___to do this,so use a box of books to place under their feet.
Sit and make sure your back(45)___the seat back the whole time.Try not to slouch (低头松肩地坐) or lean over the keyboard while you type.A chair that has lower-back support can help you do this.
Typing Time
When you type,make sure your elbows are bent at 90-degree angles.Your wrists should be straight,not angled up or down so your fingers rest gently on the keys of the keyboard,(46)___it feels like you have to stretch(伸∽长) your fingers to reach the keyboard,move it(47)___to you.
All Eyes on this
Any time you're using the computer,your eyes are hard at work.But be kind to them by putting the monitor 18to 20inches away from your face.At this distance,you shouldn't have to lean in to read (48)___ is on the screen.
Take a Break
Kids(49)___sit at a computer for more than 30minutes without a break.Remember to have a rest.When it's time for a break,start with your eyes.Focus on (50)___far away by looking out of a window.This gives your eyes a rest.
41.A.too many | B.many too | C.much too | D.too much |
42.A.body | B.head | C.foot | D.mind |
43.A.to | B.for | C.of | D.on |
44.A.short | B.heavy | C.light | D.tall |
45.A.arrives | B.reaches | C.gets to | D.touches |
46.A.before | B.after | C.if | D.until |
47.A.closer | B.farther | C.right | D.left |
48.A.what | B.where | C.when | D.how |
49.A.have to | B.must | C.needn't | D.shouldn't |
50.A.anything | B.something | C.everything | D.nothing. |
▼优质解答
答案和解析
41.D 考查短语辨析.A表示许多,修饰可数名词复数;B短语不存在;C表示太,非常,修饰形容词与副词;D表示太多,修饰不可数名词或动词.此处修饰动词using,选D,表示但使用电脑太多会对身体造成负担.
42.A 考查名词辨析.A表示身体;B表示头; C表示脚;D表示大脑.your hands,wrists,back,and eyes都是身体的一部分,所以选A.
43.C 考查介词与固定搭配.A表示到;B表示对于,为了;C表示…的;D表示在…上.in the center of…表示在…的中央,此处表示将你的屁股放在座位中央,选C.
44.A 考查形容词辨析.A表示短的,矮的;B表示重的;C表示轻的;D表示高的.由so use a box of books to place under their feet可知此处表示大多数孩子太矮了这样做不了,选A.
45.D 考查动词辨析.A表示到达;B表示到达;C表示到达;D表示触摸.结合语境可知此处表示坐着并确保你的背部和座位的靠背一直保持接触,选D.
46.C 考查条件状语从句.if引导的条件状语从句,从句为一般现在时时,主句可用一般将来时或祈使句,此句的主句move it(47)to you是祈使句,且结合语境可知此处表示如果感觉你像要伸长你的手指去触摸键盘,选C.
47.A 考查形容词辨析.A表示更近的;B表示更远的;C表示右边的,对的;D表示左边的.由it feels like you have to stretch(伸∽长) your fingers to reach the keyboard可知此处表示将它向你移近点,选A.
48.A 考查宾语从句.分析句子可知空格处引导宾语从句作read的宾语,且从句中缺主语,要用what来引导,选A.
49.D 考查情态动词辨析.A表示不得不;B表示一定;C表示不需要;D表示不应该.由Remember to have a rest可知此处表示孩子们不应该在电脑前坐超过30分钟而不休息,选D.
50.B 考查不定代词.A表示任何事物,常用于否定句或一般疑问句;B表示某事物,常用于肯定句;C表示一切事物;D表示没有事物.结合语境可知此处表示集中注意力在远处的事物上,选B,
42.A 考查名词辨析.A表示身体;B表示头; C表示脚;D表示大脑.your hands,wrists,back,and eyes都是身体的一部分,所以选A.
43.C 考查介词与固定搭配.A表示到;B表示对于,为了;C表示…的;D表示在…上.in the center of…表示在…的中央,此处表示将你的屁股放在座位中央,选C.
44.A 考查形容词辨析.A表示短的,矮的;B表示重的;C表示轻的;D表示高的.由so use a box of books to place under their feet可知此处表示大多数孩子太矮了这样做不了,选A.
45.D 考查动词辨析.A表示到达;B表示到达;C表示到达;D表示触摸.结合语境可知此处表示坐着并确保你的背部和座位的靠背一直保持接触,选D.
46.C 考查条件状语从句.if引导的条件状语从句,从句为一般现在时时,主句可用一般将来时或祈使句,此句的主句move it(47)to you是祈使句,且结合语境可知此处表示如果感觉你像要伸长你的手指去触摸键盘,选C.
47.A 考查形容词辨析.A表示更近的;B表示更远的;C表示右边的,对的;D表示左边的.由it feels like you have to stretch(伸∽长) your fingers to reach the keyboard可知此处表示将它向你移近点,选A.
48.A 考查宾语从句.分析句子可知空格处引导宾语从句作read的宾语,且从句中缺主语,要用what来引导,选A.
49.D 考查情态动词辨析.A表示不得不;B表示一定;C表示不需要;D表示不应该.由Remember to have a rest可知此处表示孩子们不应该在电脑前坐超过30分钟而不休息,选D.
50.B 考查不定代词.A表示任何事物,常用于否定句或一般疑问句;B表示某事物,常用于肯定句;C表示一切事物;D表示没有事物.结合语境可知此处表示集中注意力在远处的事物上,选B,
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