---- My mother is ill in hospital?
---- _________.
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A．I don’t think so. |
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B．Oh, she is unlucky. |
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C．No problem. |
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D．I’m sorry to hear that. |
---- Do you know Jack well?
---- Certainly, we _________ friends since ten years ago.
|
A．were |
B．have made |
C．have become |
D．have been |
The box is too heavy for me _________.
|
A．carrying |
B．carries |
C．carry |
D．to carry |
It _________ rain this afternoon, but I am not sure.
|
A．will |
B．can |
C．must |
D．may |
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.
1.A computer screen may injure your eyes if __________.
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A．you sit 60 centimeters away |
|
B．you remember to look away |
|
C．your eyes are too close to it |
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D．the window is on your left or your right |
2.Hand and wrist injuries are caused when you _________.
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A．get plenty of exercise |
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B．move in the same way again and again |
|
C．rest your wrists on something |
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D．keep your elbows as high as the keyboard |
3.Your eyes and hands will be safe if __________.
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A．you work near a window |
|
B．you often take a rest from working |
|
C．you use a keyboard for a long time |
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D．the window is behind you |
4.It is good for your back and neck if you sit __________.
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A．in the right way |
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B．for many hours |
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C．with the screen below your eyes |
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D．with your back leaning forward |
5.What would be the best title for the passage?
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A．How to protect your eyes. |
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B．How to protect your hands and wrists. |
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C．How to use a computer safely. |
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D．How to protect your back. |
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HOUSE TO RENT Old house to rent in city center. One bedroom and one kitchen. Near important station. Buses pass back door. $75/month. Phone: 4461324 |
SWIMMING LESSON FOR STUDENTS Newquay Training Center July 5-7. 312 Kings Road. |
|
WELCOME TO OUR DANCE CLUB Free lessons. Once a week. Every Saturday evening a different lesson. Bring your favorite CDs. Call Alice at 2122819. |
WORK WANTED Strong boy to work in gardens or do housework. 3 hours a week. Call Tom at 4235857. |
1.Mr Black wants to live in the house with his little son for half a year. He should pay ___.
|
A．$75 |
B．$150 |
C．$450 |
D．$900 |
2.Linda is interested in dancing. She will _______.
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A．buy many CDs in the dance club |
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B．spend much money joining the dance club |
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C．go to the dance club every week in the dance club |
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D．have the same lesson every week in the dance club |
3.How long can students learn to swim in the Newquay Training Center?
|
A．3 days. |
B．4 days |
C．1 week |
D．2 weeks. |
4.What will you do if you want to do the garden work?
|
A．Call 4461324 |
B．Call 4235857 |
C．call 2122819 |
D．Go to 312 Kings Road. |
5.Which of the following is true?
|
A．The old house has one bedroom and a kitchen. |
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B．If you want to learn to swim, you can go to 321 Kings Road. |
|
C．Linda should go to dance club twice a week. |
|
D．If you want to do the garden work, you should work three hours a day. |
