new or old injuries是什么意思

Computers can injure you. Most other injuries happen suddenly. For example, if you fall off a bike and break your arms, it happens very quickly. But computer injuries happen slowly.
You probably know how to ride a bike safely. Now learn to use a computer safely.
Your eyes
Too much light can injure your eyes, so never sit too close to a computer screen. Your eyes should be at least 50cm from the screen. Remember to look away from it sometimes. This gives your eyes a rest.
When you use a computer, the window should be on your left or your right. If it is behind you, the light will reflect(反射) on the screen. If the window is in front of you, the sun and the screen will both shine into your eyes.
Your hands and wrists(手腕)
Hand and wrist injuries can happen because the hands and wrists are moved in the same way hundreds of times. If you use a keyboard for a long time, follow these rules: ①Rest your wrists on something. ②Keep your elbows at the same height as the keyboard. ③Stop sometimes and exercise your hands, wrists and fingers in a different way.
Your back
Some people sit for many hours in front of a computer. If you sit in the wrong way, you can injure your back or your neck. So you should sit with your back straight. The top part of the screen should be in front of your eyes. Your forearms, wrists, hands and the upper part of your legs should all the parallel (平行) to the floor. If you are sitting for a long time, get up every 30 minutes and exercise your arms, legs and neck.
小题1:A computer screen may injure your eyes if __________.
A. you sit 60cm away
B. your eyes are too close to it
C. the window is on your left or right
小题2:Hand and wrist injuries are caused when you __________.
A. move in the same way again and again
B. rest your wrists on something
C. keep your elbows as high as the keyboard
小题3:When using a computer, your eyes and hands will be safe if you __________.
A. work near a window
B. work for a long time
C. take rests at times
小题4:It is good for your back and neck if you sit __________.
A. for many hours
B. in the right way
C. with the screen below your eyes
小题5:What would be the best title for the text?
A. How to Use a Computer Safely
B. How to Keep your Hands and Wrists Safe
C. How to Protect your Eyes and your Back

[ ]

Computers can injure(伤害)you. Most other injuries happen suddenly．For example，if you fall off a bike and break your arms, it happens very quickly. But computer injuries happen slowly．
You probably know how to ride a bike safely. Now learn to use a computer safely．

Your eyes
Too much light can injure your eyes, so never sit too close to a computer screen. Your eyes should be more than 50 centimeters from the screen. Don’t forget to look away from it sometimes. This gives your eyes a rest．
When you use a computer, the window should be on your left or your right. If it is behind you, the light will reflect on(反射)the screen. If the window is in front of you，the sun and the screen will both shine into your eyes．
Your hands and wrists(手腕)
Hand and wrist injuries can happen because the hands and wrists are moved in the same way hundreds of times. If you use a keyboard for a long time, follow these three rules: 1) Rest your wrists on something.
2) Keep your elbows(肘)as high as the keyboard.
3) Stop sometimes and exercise your hands, wrists and fingers in a different way．
Your back
Some people sit for many hours in front of a computer. If you sit in the wrong way, you can injure your back or your neck. So you shouldn’t bend your back when you sit. The top part of the screen should be in front of your eyes. Your forearms, wrists, hands and the upper part of your legs should all be parallel(平行)to the floor. If you are sitting for a long time, get up every half an hour and exercise your arms, legs and neck．
Enjoy your computer, but use it safely．

Title: How to use a computer safely
Different 小题1: of your body	Causes of the injuries	Some 小题2: of keeping you away from computer injuries
Your eyes	◆Too much light can injure your eyes	◆Don’t sit too close to a computer screen． ◆Your eyes should be 小题3: 50 centimeters from the screen． ◆ 小题4: to look away from the screen sometimes．
Your 小题5: and wrists	◆You 小题6: them in the same way hundreds of times. ◆You use a keyboard for a long time.	◆小题7: your wrists on something. ◆Keep your elbows at the same 小题8: as the keyboard． ◆Exercise your hands, wrists and fingers in different ways．
Your back	◆You sit for many hours 小题9: a computer． ◆ You sit in the wrong way.	◆You should keep your back 小题10: when you sit． ◆Get up every half an hour if you are sitting for a long time.

Computers can injure you. Most other injuries happen suddenly. For example, if you fall off a bike and break your arms, it happens very quickly. But computer injuries slowly.
You probably know how to ride a bike safely. Now learn to use a computer safely.
Your eyes
Too much light can injure your eyes, so never sit too close to a computer screen. Your eyes should be at least 50 centimeters from the screen. Remember to look away from it sometimes. This gives your eyes a rest.
When you use a computer, the window should be on your left or your right. If it is behind you, the light will reflect on (反射) the screen. If the window is in front of you, the sun and the screen will both shine into your eyes.
Your hands and wrists (手腕)
Hand and wrist injuries can happen because the hands and wrists are moved in the same way hundreds of times. If you use a keyboard for a long time, follow these three rules: 1) Rest your wrists on something. 2) Keep your elbows at the same height as the keyboard. 3) Stop something and exercise your hands, wrists and fingers in a different way.
Your back
Some people sit for many hours in front of a computer. If you sit in the wrong way, you can injure your back or your neck. So you should sit with your back straight. The top part of the screen should all be in front of your eyes. Your forearms, wrists, hands and the upper part of your legs should all be parallel (平行) to the floor. If you are sitting for a long time, get up every 30 minutes and exercise your arms, legs and necks.
Enjoy your computer, but use it safely.
小题1:A computer screen may injure your eyes if __________.
A. you sit 60 centimeters away
B. you remember to look away
C your eyes are too close to it
D the window is on your left or your right
小题2:Hand and wrist injuries are caused when you _________.

A．get plenty of exercise

B．move in the same way again and again

C．rest your wrists on something

D．keep your elbows as high as the keyboard

小题3:Your eyes and hands will be safe if __________.

A．you work near a window

B．you often take a rest from working

C．you use a keyboard for a long time

D．the window is behind you

小题4:It is good for your back and neck if you sit __________.

A．in the right way

B．for many hours

C．with the screen below your eyes

D．with your back leaning forward

小题5:What would be the best title for the passage?

A．How to protect your eyes.

B．How to protect your hands and wrists.

C．How to use a computer safely.

D．How to protect your back.

Computers can injure (伤害) you. Most other injuries happen suddenly. For example, if you fall over a bike and break your arms, it happens very . But computer injuries happen slowly. You probably know how to ride a bike safely. Now learn to use a computer safely.
Your eyes light can injure your eyes, never sit too close to a computer screen. Your eyes should be 50centimeters（厘米）on the screen. remember to look away from it. This gives your eyes a rest. When you use a computer, the window be on your left or your right. If it is behind you, the light will reflect on（反射）the screen. If the window is in front of you, the sun and the screen will shine into your eyes.
Your hands and wrists(手腕)
Hand and wrist injuries can happen because the hands and wrists are moved in the same way. Hundreds of times. If you use a keyboard for a long time, these three rules: 1）Rest your wrists on some­thing. 2）Keep your elbows（肘）at the same height as the keyboard. 3）Stop sometimes and exercise your hands, wrists and fingers in a different way.
Your back
Some people sit for many hours in front of a computer. If you sit in the wrong way, you can injure your back or your neck. So you should sit with your back straight. The top part of the screen should be in front of your eyes. Your forearms, wrists, hands and the upper part of your legs should all be parallel（平行）to the floor. If you are sitting for a long time, get up every 30 minutes and your arms, legs and neck. your computer, but use it safely.

小题1:	A．much quickly B．faster C．slowly D．quickly

小题2:	A．Too many B．Too much C．Much too D．Many more

小题3:	A．so B．because C．but D．when

小题4:	A．at last B．at most C．at least D．less than

小题5:	A．Sometime B．Some time C．Some times D．Sometimes

小题6:	A．can B．may C．must D．should

小题7:	A．both B．never C．all D．neither

小题8:	A．follow B．work C．copy D．write

小题9:	A．need B．exercise C．walk D．shake

小题10:

A．Enjoy B．Watch C．Protect D．Keep

______ some injuries to his face and hands, he broke both legs.

A．Except

B．Except that

C．But for

D．Apart from

Cities alarmed by deaths and injuries of pedestrians are taking efforts to make crosswalks safer for people on foot, especially seniors and children who need more time to cross streets.
A pedestrian is killed in a traffic accident in the USA every 110 minutes；one is injured every nine minutes, according to official date. Crosswalk can be especially dangerous for the elderly. Among people 70 and older, 36% of pedestrian deaths in 2006 occurred in crosswalks, compared with 21% of those younger than 70, according to the Insurance Institute for Highway Safety.
The Federal Highway Administration（FHWA）advises that next year states increase by nearly 15% the amount of time traffic lights provide for pedestrians to cross the street after the flashing orange hand appears .
FHWA spokesman Doug Hecox says reasons for the change include an aging population that needs more time to cross, health-conscious Americans walking more, children encouraged to walk to prevent getting overweight and high gas prices pushing people to walk instead of drive.
Pedestrian deaths went down by 12% from 5,449 in 1996 to 4,784 in 2006. But among those in 2006, 471 were killed in crosswalks, down slightly from 488 ten years earlier, the National Highway Traffic Safety Administration (NHTSA) says.
小题1:Which of the following is true according to the text?

A．Among 100 pedestrian deaths there were 21 people younger than 70.

B．Old people are more likely to meet with accidents in crosswalks.

C．Traffic accidents killed more old people than young people.

D．About seven traffic accidents happened per hour.

小题2:What is FHWA’s suggestion to states?

A．Fixing more traffic lights.

B．Providing more crosswalks.

C．Giving pedestrians more time to cross streets.

D．Increasing the time before the orange lights appear.

小题3:What’s the cause of the crosswalk safety problem according to the test?

A．There’re many cars and buses on the road.

B．Pedestrians are careless.

C．Crosswalks are crowded.

D．Drivers don’t give way.

小题4:The report from NHTSA suggests that

A．fewer people were injured in crosswalks

B．crosswalk safety has been greatly improved

C．much has been done to reduce traffic accidents

D．pedestrian deaths in crosswalk remain a serious problem

小题1:Probably most injuries happen to skaters’ wrists because ________.

A．few skaters wear wrist guards

B．The wrist is the most fragile body part

C．skaters often push out their hands when falling

D．skaters don’t know how to protect their wrists

小题2:________ are the majority in the study.

A．Those who wore helmets

B．Those who wore wrist guards

C．Those who wore knee pads

D．Those who wore no protective gear

小题3:To reduce injuries greatly, a skater should at least wear __________.

A．a helmet and elbow pads

B．wrist guards and knee pads

C．elbow pads and wrist guards

D．the whole set of protective gear

小题4:This passage is most probably be found in __________.

A．a poster	B．science fiction
C．collection of choice stories	D．newspaper

小题5:What was the main point of the study?

A．To encourage people to learn skating.

B．To advise skaters to wear safety pads.

C．To advertise for skating protective gear.

D．To introduce ways of protecting skaters.

Computers can injure you. Most other injuries happen suddenly. For example, if you fall off a bike and break your arms, it happens very quickly. But computer injuries happen slowly.
You probably know how to ride a bike safely. Now learn to use a computer safely.
Your eyes--Too much light can injure your eyes, so never sit too close to a computer screen. Your eyes should be at least 50 centimeters (厘米) from the screen. Remember to look away from it sometimes. This gives your eyes a rest.
When you use a computer, the window should be on your left or your right. If it is behind you, the light will reflect (反射) on the screen. If the window is in front of you, the sun and the screen will both shine into your eyes.
Your hands--Hand injuries can happen because the hands are moved in the same way hundreds of times. If you use a keyboard for a long time, follow this rule: Stop sometimes and exercise your hands and fingers in different ways.
Your back--Some people sit for many hours in front of a computer. If you sit in the wrong way, you can injure your back and your neck. So you should sit with your back straight. The top part of the screen should be in front of your eyes. If you are sitting for a long time, get up every 30 minutes and exercise your arms, legs and neck.
Enjoy your computer, but use it safely.
小题1:How many kinds of computer injuries are mentioned in this passage?

A．One.

B．Two

C．Three.

D．Four.

小题2:A computer screen may injure your eyes if .

A．you sit 60 centimeters away

B．you remember to look away

C．your eyes are too close to it

D．the window is on your left or right

小题3:Your eyes and hands will be safe if _________.

A．you work near a window

B．you often take rests from working

C．you use a keyboard for a long time

D．the window is behind you

小题4:Which sentence is NOT true according to this passage?

A．You should sit with your back straight while you work on a computer.

B．Staying in front of a computer too long may injure your eyes.

C．When you work on a computer, your hands almost move in the same way.

D．The writer thinks that computer is bad for your health.

小题5:What would be the best title for the text?

A．How to protect your eyes

B．How to protect your hands

C．How to use a computer safely

D．How to protect your back

[ ]

Computers can injure (伤害) you. Most other injuries happen suddenly. For example, if you fall off a bike and break your arms, it happens very quickly. But computer injuries happen slowly. You probably know how to ride a bike safely. Now learn to use a computer safely.
Your eyes
Too much light can injure your eyes, so never sit too close to a computer screen. Your eyes should be more than 50 centimeters from the screen. Don’t forget to look away from it sometimes. This gives your eyes a rest.
When you use a computer, the window should be on your left or your right. If it is behind you, the light will reflect on (反射) the screen. If the window is in front of you，the sun and the screen will both shine into your eyes.
Your hands and wrists (手腕)
Hand and wrist injuries can happen because the hands and wrists are moved in the same way hundreds of times.
If you use a keyboard for a long time, follow these three rules:
1) Rest your wrists on something.
2) Keep your elbows (肘) as high as the keyboard.
3) Stop sometimes and exercise your hands, wrists and fingers in a different way.
Your back
Some people sit for many hours in front of a computer. If you sit in the wrong way, you can injure your back or your neck. So you shouldn’t bend your back when you sit. The top part of the screen should be in front of your eyes. Your forearms, wrists, hands and the upper part of your legs should all be parallel (平行) to the floor. If you are sitting for a long time, get up every half an hour and exercise your arms, legs and neck.
Enjoy your computer, but use it safely.

Title: How to use a computer safely
Different parts of the body	Causes of the injuries	Some ways of keeping you away from computer injuries
Eyes	◆Too much light can injure your eyes	◆Don’t sit too close to a computer screen. ◆Your eyes should be over小题1: from the screen. ◆Remember to小题2: the screen sometimes.
小题3:	◆You move them in the same way hundreds of times. ◆You use a keyboard for a long time.	◆Rest your wrists on something. ◆Keep your elbows at the same height as小题4: . ◆Exercise your hands, wrists and fingers in different ways.
Back	◆You sit for many hours before a computer． ◆ You sit in the wrong way.	◆You should keep your back straight when you sit. ◆小题5: every 30 minutes if you are sitting for a long time.