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 over1. from the screen. ◆Remember to2. the screen sometimes. |
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 as4. . ◆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. ◆5. every 30 minutes if you are sitting for a long time. |
八年级英语其他题困难题
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 50 centimeters(厘米)from 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.
1.A. much quickly B. faster C. slowly D. quickly
2.A. Too many B. Too much C. Much too D. Many more
3.A. so B. because C. but D. when
4.A. at last B. at most C. at least D. less than
5.A. Sometime B. Some time C. Some times D. Sometimes
6.A. can B. may C. must D. should
7.A. both B. never C. all D. neither
8.A. follow B. work C. copy D. write
9.A. need B. exercise C. walk D. shake
10.A. Enjoy B. Watch C. Protect D. Keep
八年级英语完形填空中等难度题查看答案及解析
完形填空 (5分)
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 50 centimeters(厘米)from 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.
1.A. much quickly B. faster C. slowly D. quickly
2.A. Too many B. Too much C. Much too D. Many more
3.A. so B. because C. but D. when
4.A. at last B. at most C. at least D. less than
5.A. Sometime B. Some time C. Some times D. Sometimes
6.A. can B. may C. must D. should
7.A. both B. never C. all D. neither
8.A. follow B. work C. copy D. write
9.A. need B. exercise C. walk D. shake
10.A. Enjoy B. Watch C. Protect D. Keep
八年级英语完形填空极难题查看答案及解析
任务型阅读
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) at the same height (高度)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 1.of the body | Causes of the injuries | Some 2. 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 3. 50 centimeters from the screen. ◆ 4. to look away from the screen sometimes. |
5. and wrists | ◆You 6. them in the same way hundreds of times. ◆You use a keyboard for a long time. | ◆ 7. your wrists on something. ◆Keep your elbows as 8. as the keyboard. ◆Exercise your hands, wrists and fingers in different ways. |
Back | ◆You sit for many hours 9. a computer. ◆ You sit in the wrong way. | ◆You should keep your back 10.when you sit. ◆Get up every half an hour if you are sitting for a long time. |
八年级英语其他题中等难度题查看答案及解析
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 may 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 the screen(反射在屏幕上). 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(弯曲) 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 1. of your body | Causes(原因) of the injuries | Some 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 3. 50 centimeters from the screen. ◆ 4. to look away from the screen sometimes. |
Your 5. and wrists | ◆You 6. them in the same way hundreds of times. ◆You use a keyboard for a long time. | ◆ 7. your wrists on something. ◆Keep your elbows at the same 8. as the keyboard. ◆Exercise your hands, wrists and fingers in different ways. |
Your back | ◆You sit for many hours 9. a computer. ◆ You sit in the wrong way. | ◆You should keep your back 10. when you sit. ◆Get up every half an hour if you are sitting for a long time. |
八年级英语其他题中等难度题查看答案及解析
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 over1. from the screen. ◆Remember to2. the screen sometimes. |
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 as4. . ◆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. ◆5. every 30 minutes if you are sitting for a long time. |
八年级英语其他题困难题查看答案及解析
Computers can injure(伤害) you. Most other injuries happen suddenly. For example, if you a bike and break your arms, it happens very . But computer injuries slowly.You probably know how to ride a bike safely. Now learn to a computer safely.
Your eyes
light can injure your eyes, never sit too close to a computer screen. Your eyes should be 50 centimeters(厘米) the screen(平幕), Remember to look away from it sometimes. 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 times. If you use a keyboard for a long time, 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 30 minutes and your arms, legs and necks.
your computer, but use it safely.
1.A. fall over B. fall down C. fall off D. fall onto
2.A. carefully B. luckily C. slowly D. quickly
3.A. fix B. run C. ride D. drive
4.A. Too many B. Too much C. Much too D. Many more
5.A. so B. because C. but D. when
6.A. at last B. at most C. at least D. less than
7.A. to B. from C. on D. away
8.A. sometime B. some time C. some times D. sometimes
9.A. can B. may C. must D. should
10.A. both B. never C. all D. none
11.A. hundred of B. hundreds C. hundreds of D. two hundreds
12.A. follow B. work C. copy(复制) D. write
13.A. one B. every C. both D. once
14.A. need B. exercise C. move D. climb
15.A. Enjoy B. Use C. Protect (保护) D. Keep
八年级英语阅读理解中等难度题查看答案及解析
阅读短文,把A—D四个句子填入文中空缺处,使短文内容完整正确,然后完成小题。(5分)
Computers can injure (伤害) you .Most other injures happen suddenly .___1___. Now learn to use a computer safely .
Too much light can be bad for you eyes , so never sit too close to a computer screen .___2___ . This gives your eyes a rest .
When we 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 .That may hurt your eyes .
Hand and wrist ( 手腕 ) injures can happen because the hands and wrists are moved in the same way hundreds of times .__ 3___,stop sometimes and exercise your hands ,wrists and fingers in a different way .
If you sit in wrong way ,you can injure your back or your neck . ___4___. The top part of the screen should be in front of your eyes .
A. Remember to look away from it sometimes
B .But computer injures happen slowly .
C. So you should sit with your back straight..
D. If you use a keyboard for a long time .
Which of the following is WRONG according to the passage ?( )
A. When you use a computer , the window should be in front of you .
B. Computers ’injures happen slowly .
C. The top part of the screen should be in front of your eyes .
D. After using a computer for a long time ,you should exercise your hands ,wrists and so on.
八年级英语阅读理解中等难度题查看答案及解析
What’s the most important thing for you to have in your life? Somebody mentions hard-work, others suggest knowledge, love and luck.
If you arrange the 26 English letters alphabetically(按字母表的顺序)and use numbers to represent each of them, for example, 1 for a, 2 for b, 3 for c…, you can change an English word into a number. So hard-work becomes 8+1+18+4+23+15+18+11=98, meaning 98 is its mark; knowledge: 11+14+15+23+12+5+4+7+5=96, while love :12+15+22+5=54, and luck : 12+21+3+11=47, a small mark. None of these words can give one a full mark. What about money or prayer(祈祷)? They can’t, either.
Then what else? Don’t be worried. You can always find an answer to a problem in your life, when you change your way of looking at things or doing things, or your attitude. Yes, attitude is the word. See for yourself: attitude:1+20+20+9+20+21+4+5=100,a full mark.
Different attitudes lead to different courses of life. Most times people hope for a better life. It is possible that one will have a change for the better after one has changed one’s attitude.
When you change your manner and become friendly towards others, you’ll meet more smiling faces towards you. In the same way, if you take a positive attitude towards failure(失败), you’ll find it’s also rewarding though it has caused you losses.
1.In the writer’s opinion, what is the most important things in a person’s life?
A. Hard-work. B. Knowledge. C. Money. D. Attitude.
2.According to the passage, what’s the mark of the word “succeed”?
A. 50 B. 60 C. 70 D. 80
3. What does the underlined word “positive” mean in the text?
A. 正面 B. 反面 C.积极的 D.消极的
4.According to the passage, if you meet with problems, the best way out is to ___________.
A. change your attitude B. say your prayers to God
C. ask for help from others D. try math-solving methods
5.From the passage we can learn that ______________.
A. different attitudes come from different courses of life.
B. mathematics can solve every problem easily in our daily life
C. failure sometimes can bring you good if you take a positive attitude
D. none of the English words except “attitude” equals to 100 or more
八年级英语阅读理解简单题查看答案及解析
What’s the most important thing for you to have in your life? Somebody mentions hard-work, others suggest knowledge, love and luck.
If you arrange the 26 English letters alphabetically(按字母表的顺序) and use numbers to represent each of them, for example, 1 for a, 2 for b, 3 for c…, you can change an English word into a number. So hard-work becomes 8+1+18+4+23+15+18+11="98," meaning 98 is its mark; knowledge: 11+14+15+23 +12+5+4+7+5="96," while love: 12+15+22+5="54," and luck: 12+21+3+11="47," a small mark. None of these words can give one a full mark. What about money or prayer(祈祷)? They can’t, either.
Then what else? Don’t be worried. You can always find an answer to a problem in your life, when you change your way of looking at things or doing things, or your attitude(态度).Yes, attitude is the word. See for yourself: attitude:1+20+20+9+20+21+4+5=100,a full mark.
Different attitudes lead to different courses of life. Most times people hope for a better life. It is possible that one will have a change for the better after one has changed one’s attitude.
When you change your manner and became friendly towards others, you’ll meet more smiling faces towards you. In the same way, if you take a positive (积极地) attitude towards failure(失败), you’ll find it’s also rewarding though it has caused you losses.
1.In the writer’s opinion, what is the most important thing in a person’s life?
A.Hard-work. | B.Knowledge. | C.Money. | D.Attitude. |
2.According to the passage, if you meet with problems, the best way out is to _______.
A.ask for help from others |
B.say your prayers to God |
C.change your attitude |
D.try maths-solving methods (方法) |
3.From the passage we can learn that ______.
A.different attitudes come from different courses of life |
B.mathematics can solve every problem easily in our daily life |
C.failure sometimes can bring you good if you take a positive attitude |
D.none of the English words except “attitude” equals to 100 or more |
八年级英语阅读理解中等难度题查看答案及解析
Most children like chocolates, candies and other kinds of sweet food. Sometimes they put a lot of sugar into their food. They don't know that sugar is bad for their teeth. Children also like fast food. It is ___ ____ delicious than home cooking, and children can take it away and eat it anywhere. Other children like to eat too much meat. Fast food or too much meat doesn't help build a strong and healthy body.
Children grow fast. They need to eat more eggs, milk, corn(谷物),fruit, vegetables and other healthy things. Eggs and milk are good for their bones. Corn gives them energy. Fruit and vegetables give them vitamins(维生素). Children should eat an egg, and have about 200ml of milk every day. It's best to drink milk after eating bread in the morning. They should eat 150g of corn to give them energy, too. They should also eat an apple or some other fruit with their breakfast. Eating enough vegetables is important for lunch and supper.
1.How many kinds of healthy foods are mentioned(提及) in this passage?
A. Three B. Five C. Six D. Seven
2. According to this passage, we ______.
A. shouldn't put any sugar into their food
B. should eat more fast food to make us strong and healthy
C. should eat corn to keep us active
D. shouldn't drink milk after eating bread
3.选择最佳答案,填在空白处。
A. much B. a little
C. much more D. very
4.What does the underlined word "build" mean?
A. buy B. let C. have D. make
5.What's the main idea of this passage?
A. Children shouldn't eat sweet food.
B. Children grow quickly.
C. Children should eat home cooked food instead of fast food.
D. Children should eat more healthy foods.
八年级英语阅读理解中等难度题查看答案及解析