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 题目和参考答案——青夏教育精英家教网—

题目内容

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 __________.

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

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

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

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

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.

【答案】

1.C

2.B

3.B

4.A

5.C

【解析】略

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【小题1】This ad is for_____________.

【小题2】If you buy something ________, the first thing you need is a computer.

【小题3】After you find sweaters online, you want a small black one and you can click on “__________”.

【小题4】What don’t you need to enter into the computer?

A．Your name.	B．Your address.
C．Your ID card number.	D．Your age.

【小题5】What does the underlined word “click” mean?

These days, cars are designed using computers. Let’s look at how a new car is created.
First, several designers talk about the new car and any good ideas that they have. Then they sit down at their computers and draw many sketches. The best two or three drawings are chosen and then more detailed(细节的，详情的) drawings of cars are developed on the computer. You can change the size, shape or color of any part on the computer to see how the car would look and then (73 ) you can choose the best design.
Both the inside and the (71) ________of the car have to be designed. Part of the inside of the car is built so that the designers can sit in it. They can feel if there is enough room inside and if they can reach everything. Then some cars are built—there are more than 15 000 parts of a car to test.
(74) When everything is safe, the cars are made in the factory. Again, computers are used to make sure that all the parts are ready as they are needed. （72）The factory usually stays open all through the night so that the car production never stops.
【小题1】Fill in the missing word:
“Both the inside and the _____________of the car have to be designed.”
【小题2】The underlined phrase “stays open” means______________________. (Only in English）
【小题3】“You can choose the best design.” means:
The best design can __________ __________.
【小题4】Please translate the following sentence into Chinese:
“When everything is safe, the cars are made in the factory.”
__________________________________________________________________________
【小题5】The main idea of the passage is
____________________________________________________________________.

The human brain weighs about 1.4 kilograms, but it can hold much more information than most computers. However, there is another difference between humans and computers. Computers don't forget information they are given, but humans often do. No one remembers everything, and luckily we don't usually have to. But everyone can improve their memory if they want to. Here are some suggestions.

◆Try to use new informati6n immediately. For example, if you meet someone who says "Hi! I'm Carlos," don't just say "Hello." Repeat the person's name. Say"___________"

◆Break a big number into smaller parts. For example, it's hard to memorize (记忆) 109244153. But if you break it into three parts--109/244/153—it becomes easier.

◆Write out what you need to remember ever and over again. This will help you keep it in mind longer, especially for memorizing formulas (公式) or facts.

◆Always review information. If you bring what you've learned back to your mind, they become easier to remember. For example, before you go to sleep, it’s a good idea to review the new things you learned that clay.

◆Discuss with a friend. It is always easier to remember things through discussions. You can have a discussion about what's right and what's wrong, and it will lead to the right answer.

◆Never tell yourself that you have a bad memory. You can always do something to help improve your memory. And everyone's memory gets better if they use it often enough.

All of the suggestions are helpful. If you follow them, you are certain to improve your memory.

1.Which should be put in the blank (空格) in Paragraph 2？

A. Hello, Carlos. B. How do you do?

C. Hello, I am Sophia. D. Glad to meet you!

2.What can help memorize a big number more easily according to the passage?

A. To store it in a computer.

B. To break it into smaller parts.

C. To discuss it with a friend.

D. To review it before you sleep.

3.Which of the following is true according to the passage?

A. Discussing with friends can help you remember things.

B. Always reviewing information can help you fall asleep.

C. Formulas and facts can help you learn about your brain.

D. Human beings can improve their memory by computer.

4.What does the sentence "Never tell yourself that you have a bad memory” mean?

A. You should tell others about your bad memory.

B. You should believe in other people all the time.

C. You should ask others to improve their memory.

D. You should have confidence in your memory ability.

The teacher asked the students _________________.

A. if they are interested in dinosaurs

B. when was Audery Heben born

C. What they will do with the computers

D. how many trees they had planted

根据短文内容及首字母提示，填写所缺单词。

When every Apple Fan was waiting for the next surprise, Steve Jobs, the founder and former CEO of Apple, p1. away on October 5th, 2011, at the a 2. of fifty-six after a seven-year-long battle with cancer.

What is Jobs best remembered for? Many of u 3. would name some great products：the iPod, iTouch, the iPhone and the iPad. They have changed the way we e 4. music, television, and even books.

But Jobs brought much more to the world t 5. these popular products. As a successful businessman, Jobs’ passion (激情) and energy e 6. the world. He told us “do what you love”. He said, “the only thing that k 7. me doing is that I love what to do.” He believed that “People with passion can change the world for the better”. Jobs made computers i 8. and easy to use. His iPhone, iPad and iTouch are popular around the world. People say Jobs sold d 9. , not products. As the US President Barack Obama said, Jobs was “brave enough to think d 10. , bold (大胆的) enough to believe he could change the world, and talented enough to do it”.

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