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 (and at this point, who doesn’t?), you are more easily harmed by the hazards.
We have got so used to using computers that we often neglect (忽视) to think of them as dangerous sources of harmful radiation. A safe amount of radiation is 25 V/m (Volts/meter). Do you want to guess how much our personal computers give off?
Keyboard: 1000 V/m
Mouse: 450 V/m
Monitor: 218V/m
CPU: 170V/m
Notebook computers: 2,500 V/m
Ways of Protect Yourself from Harmful Computer Radiation
1. Decorate your desk with cactus (仙人掌) plants, they take in radiation.
2. Drink two to 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（滤色镜） for your monitor.
4. Avoid having metal objects (金属物体) 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 50cm 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?
1.Sitting to close to your computer for too long can cause .
A. your fingers to turn blue
B. radiation sickness
C. your parents to think you’re smart
D. your games scores to go down
2.The underlined word “hazards” in paragraph 2 means .
A. illness B. feelings C. danger D. headache
3.How can you avoid the affects (影响) of radiation?
A. Spend less time at your computer.
B. Use plastic to cover your screen.
C. Type in a dark room.
D. Have your cat do your homework for you.
4.Which of the following is NOT true according to the passage?
A. Cactus plants take in harmful radiation.
B. Eating healthily helps you stay well.
C. You should fall asleep at your computer daily.
D. A well ventilated room is good prevention.
5.The best title of the passage is .
A. Computer problems
B. Computer radiation: a silent killer
C. Protect yourself
D. Harmful radiation
灵星计算小达人系列答案科目：初中英语 来源：2015-2016学年广西钦州经济技术开发区中学八年级上学期期末英语卷（解析版） 题型：单项填空
---How do usually come to school? ---________my father’s car.
A. By B. At C. In D. With
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English ─ speaking people say many“thank you”every day. Early in the morning when a teacher asks a student，“Good morning. How are you?”, his answer should be.“I'm fine, thank you. And you?" This is the first "thank you" of a day.
When you hear “Your skirt is nice.” you say“Thank you. I'm happy you like it.” At your birthday party, When people give you something and say“This is for you. Happy birthday!”，you
also answer, “Thank you."
When your friend helps you clean the classroom after school, you say“thank you" to him.
When you hear people say to you "Your English is very good.” , how do you answer it?
1.When people say to an English girl，“You look beautiful today.”she will say .
A. "Yes, I'm always beautiful.”
B. "No，not at all.”
C. “Do you think so?”
D. "Thank you. I'm happy to hear it.”
2.When someone says "thank you" to you, your answer is “ ”
A. Not at all. B. That 's OK
C. It's all right. D. A, B or C
3.You don't say “thank you" when .
A. you hear someone say to you，"Your English is very good!”
B. someone gives you a present
C. you meet an old friend of yours
D. you hear people say "good luck"(好运)to you
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─When do you get up Sunday morning?─I usually get up 8 in the morning.
A. in; at B. on; in C. on; at D. in; on
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单词拼写
根据下列句子及所给单词的首字母，在答题卷上按题号写出各单词的完全形式 (每空限填一词)。
1.The number after twenty-nine is t .
2.It is r heavily outside. Take the raincoat with you.
3.The speech was so b that he fell asleep in the hall.
4.The coat is too light to k out the cold in winter.
5.It is s that he is going to university in Canada. We can’t believe it.
6.The song “I believe I can fly” tells us that believing o is very important.
7.There were q a few students who could work out this difficult problem.
8.I know a girl w mother is a German doctor. We can ask her for help.
9.Ted often f his homework alone before he goes to bed.
10.After a few y time, Sonia could play the piano very well.
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完形填空,阅读下面短文.从短文后各题所给的四个选项A、B、C、D中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
Old George selected（挑选） his food in the supermarket more carefully than NASA chose its astronauts. When he left the cashier, he was ________ to think that he had saved 80 cents today.
At the exit, the cold wind made him ________ his gloves. He looked for them in his coat and pants ________ could not find them anywhere. He had bought the black gloves at a(an) ________ price, for just $35, years ago. They were ________ and very comfortable. He had taken great care looking ________them, so they were in good condition.
George, calm on the outside but mad on the inside, re-entered the ________. He followed the same route he had walked before. Several minutes of searching turned out to be in vain (徒劳). His ________ were gone. “People have changed,” he said to himself. “Years ago, if somebody picked up something lost, they would give it back. Not any more!”
He stared at anybody wearing black gloves to see if they looked like ________. On his way to the dairy section, he ________ a lady wearing a pair of black gloves. He sped up and in three seconds was in front of her. But ________ the surprised woman looked over, his eyes dropped, for her gloves were just far too small to be his. He went over to the cashier to ask if she had received any lost gloves, but she said no. He finally walked out________ the street.
A few days later, poor George decided to buy another leather pair. ________ getting on the subway, he stepped into the supermarket again. He wanted to see if by any chance his gloves had been returned to the lost and found office. “What color are they?” the woman in the office asked. “Black,” he ________the same answer. She looked into her drawer and drew out a pair of ________ leather gloves. “Are they?”
“Yes! Those are mine,” George exclaimed, his eyes full of joy.
1.A. sad B. sorry C. pleased D. worried
2.A. think of B. think about C. think over D. think for
3.A. when B. and C. but D. so
4.A. good B. high C. cheap D. expensive
5.A. hard B. soft C. new D. small
6.A. for B. after C. at D. over
7.A. exit B. condition C. store D. office
8.A. coats B. pants C. gloves D. cents
9.A. him B. his C. them D. theirs
10.A. caught B. knocked C. held D. noticed
11.A. although B. when C. unless D. until
12.A. of B. off C. on D. into
13.A. After B. When C. While D. Before
14.A. returned B. got C. gave D. took
15.A. kid’s B. men’s C. women’s D. lady’s
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In a classroom in any countries, the teacher teaches more than art or history or language. He or she teaches something behind--- the culture of the country.
In a country such as the United States, people with different history, culture and language join together and they pay much attention to person ideas. Teachers try to make each student special. Students do not have to remember a lot of information, instead, they work and find answers by themselves. There is often discussion in the classroom. At an early age students learn to have their own ideas. Their education encourages personal thought . The importance is placed on how to arrive at an answer and not only to get the correct answer.
In most Asian countries, people have the same language, history and culture. Perhaps for this reason, the education there pays more attention to group goals than personal ideas. Children in China and Japan often work together and help each other on homework. In the classroom, the ways of teaching are often very traditional. The teacher says, and the students listen. There is not much discussion. Instead, the students repeat rules or information that they have been taught in order to keep them in mind.
In many ways these differences come from different educational ideas. In Western countries teachers are taught to help students to learn. They make it easier for the students to learn by themselves. In some Asian countries, however, teachers often feel that their job is to pass knowledge to students.
1.Do students in the United States have to remember a lot of information?
__________________________________________________________
2.There is often discussion in the classroom in America, isn’t there?
___________________________________________________________
3.What does the education in the United States encourage?
___________________________________________________________
4.Which does the education in some Asian countries pay more attention to, group goals or personal ideas?
___________________________________________________________
5.Put the sentence “In some Asian countries, however, teachers often feel that their job is to pass knowledge to students,” into Chinese.
_____________________________________________________________
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She felt ___________when she sat there __________.
A. alone, lonely B. lonely, lonely
C. lonely, alone D. alone, alone
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完形填空
请先阅读下面的短文，掌握其大意，然后从各小题所给的A、B、C、D四个选项中选出可以填入相应空白处的最佳选项，并将其填到答题卷的相应位置。
Dear Dale ,
Thanks for your letter. Do you want to know about my life here ? I am not very happy. I have a lot of ________in school and at home. ________ school rules（规则）, I ________ wear my uniform(校服) . I can’t________ late for school. I can’t _________in the classroom. I can’t run in the hallways( 走廊), _________. And teachers tell us not to __________ with others. For home rules, my parents are very _________ with me. I can’t get up late. I must __________ home before five thirty p.m. I can play computer games only _________ half an hour every day . I can’t_________ outside(外面) with my friends on weekends. I must clean my bedroom every_________. When it is time to bed, I must stop __________ TV. I don’t _________ them . What can I do ?
Write_________ me soon .
Best wishes,
Dave
1.A. rooms B. books C. rules D. classes
2.A. To B. Of C. For D. In
3.A. must B. can’t C. can D. don’t
4.A. is B. am C. are D. be
5.A. read B. write C. sit D. eat
6.A. to B. too C. also D. either
7.A. speak B. fight C. talk D. read
8.A. strict B. nice C. good D. well
9.A. get to B. go C. get D. go to
10.A. with B. in C. at D. for
11.A. stay B. leave C. take D. in
12.A. year B. day C. month D. hour
13.A. seeing B. watching C. looking D. reading
14.A. like B. want C. stand D. see
15.A to B. for C. with D. At
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