题目内容
选词填空 阅读下面短文,从方框中选择单词,根据实际情况用其适当形式填空,使短文意思完整、通顺。每空一词,每词只能用一次。
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Hey,friends!Are you the only child in the family?Do you feel lonely sometimes?If so it’s 1. to have the feeling.And because you are the only child,you’re the most important person in the family.Of course,your parents care about you a lot,right?When you’re free,they often 2. with you,don’t they?And maybe they always 3. you with other children,right?Sometimes,they don’t 4. you to make phone calls to a boy or a girl,do they?These things may make you unhappy.Maybe you think they put too much5. on you.Do you often argue with them?Some of you may even decide to leave home.But if so,you will have more problems.I think you should show your parents that you’re growing up.Then they’re no longer(不再) think of you as a small child.Then you’ll have a happy life and never think of leaving home.
If the only sports you do are dancing your fingers across your keyboard, you could be in serious danger of more than just becoming overweight and out of shape.
Do you often feel sleepy, like something is weighing down on your head? Do you feel forgetful? Do you sometimes feel uncomfortable up and down your neck and lower back, and you can’t explain why? Do you get sick often? It could be radiation(辐射) from your computer causing it. If you spend three hours or more a day in front of a computer, you are more easily harmful by the hazard(危险).
We have got so used to using computers that we often neglect(忽略) to think of them as dangerous sources of harmful radiation. A safe amount of radiation is 25V/m(Volts/meter). Do you want to guess how much our personal computers give off?
Keyboard: 1000 V/m
Mouse: 450 V/m
Monitor: 218 V/m
CPU: 170 V/m
Notebook computers: 2,500 V/m
Ways to Protect Yourself from Harmful Computer Radiation
1. Decorate your desk with cactus(仙人掌) plants, they take in radiation.
2. Drink two or three cups of green tea a day and eat an orange daily. The vitamins in tea leaves and oranges protect us from radiation and keep our eyes healthy as well.
3. Use a screen filter(过滤器) for your monitor.
4. Avoid having metal objects nearby on your desk.
5. Put the back of the computer to the wall. Most of the radiation comes off the back.
6. Keep your monitor at least 50 cm away from your face.
7. Keep your computer rooms ventilated(空气流通的).
8. Eat healthily---especially fruits and vegetables.
9. Don’t fall asleep on your computer. Turn it off if you have to rest nearby.
The ways above are useful, why not have a try at once?
Ways to reduce1.____________________ | |
Symptom(症状) affected by computers | Feeling sleepy, forgetful and 2.___________ |
A safe amount of radiation | 3.___________________ |
The radiation a mouse gives off | 4.___________________ |
There are 5._________ ways to protect yourself from harmful computer radiation. | |