Learn how to use the words and phrases in this unit. 查看更多

 

题目列表(包括答案和解析)

                                 

  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 (肘部) 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(前臂), wrists, hands and the upper(上部) 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

 

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阅读理解

  When you are learning English, listening, speaking and writing are important, but reading can also be very helpful.When you read, you cannot only learn some new words, but also you can learn how to use these English words.When you read, it gives you a good example for writing.

  Good reading tips(建议):

  Try to read at the right level(水平).Read something that you can(more or less)understand.If you need to stop every three words to use a dictionary, it is not interesting.

  Try to increase(提高)the number of your new words.If there are four or five new words on a page, write them in your notebook.But you don’t have to write them while you read.Instead, try to guess their meanings as you read, and mark them with a pen.Then come back when you have finished reading to look them up in a dictionary and write them in your own vocabulary book.Then try to remember them.

  Try to read regularly(定期).For example, read for a short time once a day.Fifteen minutes every day is better than two hours every Sunday.Fix(固定)a time to read and keep to it.For example, you could read for fifteen minutes when you go to bed, or when you get up or at lunchtime.

  Read what interests you.Choose a book or a magazine about a subject that you like.Because you are going to spend time and money to read it, choose an interesting one.You can also read newspapers.There are many English newspapers in China.For example, 21st Century Teens.It is easy enough for you to understand.There is something interesting in it.

(1)

How many reading tips does the writer give us?

[  ]

A.

Six.

B.

Three.

C.

Five.

D.

Four.

(2)

Which of the following is true?

[  ]

A.

When you read, you can only learn some new words.

B.

It is interesting for you to stop every three words to use a dictionary.

C.

Reading a lot can help you write better.

D.

Try to read something that you can’t understand to make your English better.

(3)

If you meet a few words on a page while reading, ________

[  ]

A.

write them down at once

B.

guess the meaning at first

C.

give up reading

D.

don’t mark with a pen

(4)

To make your reading better, ________.

[  ]

A.

only read a magazine about a subject that you like

B.

reading English for two hours every Sunday is much better than a short time once a day

C.

you should read something that you like for a short time once a day at least

D.

it’s enough for you to read 21st Century Teens

(5)

The best title is ________.

[  ]

A.

Reading is Very Helpful

B.

When to Read

C.

What to Read

D.

How to Make Reading Better

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阅读理解。

  We are a non-profit(非营利性)organization.We have volunteer jobs for people of all ages.Anyone, from twelve-year-old children to people in their eighties, can become a volunteer.

  You can help people in many ways.School need help with taking care of children while parents are working.Hospitals need volunteers to look after children while their parents see a doctor.Animal lovers can help take care of those dogs and cats without homes.There is something for everyone.

  “As a volunteer, I don't want to get anything.Seeing the children's happy faces, I am happy too,”said Carlos Domingo, an old woman of 62.

  “I often played computer games in my spare time before.Now I help older people learn how to use computers.”said another volunteer at the age of 18.

  If everyone helps a bit, we'll all have a better world to live in.

  Interested?Call us on 1-800-555-5756.Or visit our website:www.active, com.

(1)

What kind of people can become volunteers?

[  ]

A.

Both young and old.

B.

Both rich and poor.

C.

Both male and female.

D.

A, B and C.

(2)

Volunteers want to get ________ when they help others.

[  ]

A.

nothing

B.

very little money

C.

the same help

D.

A, B and C

(3)

Carlos Domingo does volunteer work with ________.

[  ]

A.

dogs

B.

cats

C.

old people

D.

children

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(阅读理解)

  American Teenagers

  Teenagers who are between the ages of 13 and 19 are no longer childran,or they are not yet adults.They express themselves through their own music,clothes and language.There are more than 36 million teenagers in America.

  Teenagers have the emotions of a child in the body of an adult.They want to be free and independent.Yet they also want to be taken care of.Many teenagers disagree with their parents how much freedom they should have.Some disobey their parents.They say their parents do not understand them.

  Today American teenagers spend a lot of money buying records,clothes and electronic devices.They also spend a lot on entertainment.Where do the American teenagers get all this money? Many of them have part-time jobs.Some work as baby-sitters.Others work at fast food places.They make about 4 dollars an hour.Many teenagers do not have jobs.Instead,they receive 20 dollars a week from their parents.

  American students usually begin school at the age of 13 or 14.Some leave at the age of 16,but most complete the 4-year high school program.

They do not get their first full-time jobs or begin university studies until they are 17 or 18 years old.The high school day is about 7 hours long.The day is divided into classes of about 50 minutes.The students have a meal in the middle of the day.

  American teenagers study English,history,math,science,art and foreign languages.Some also learn job skills.They might learn how to use a computer or how to fix a car.Other students might learn by working in an office,a hospital or other places one day a week.

(1)

They express themselves NOT through their own _________.

  A. music  B. clothes C. language  D. manners

[  ]

(2)

Today American teenagers spend a lot of money buying _________.

  A. records B. clothes and electronic devices C. entertainment D. all the above

[  ]

(3)

Where do the American teenagers get no money?

  A. They work part-time jobs.

B. They work as baby-sitters.

  C. They work at fast food places.  

D. They receive 20 dollars a week from their friends.

[  ]

(4)

How old do the American students usually begin high school?

  A. 13 or 14.  B. 15 or 16. C. 16 or 17.  D. 12 or 13.

[  ]

(5)

What may the American teenagers NOT study in a high school?

  A. English and history.

B. Math and science.

C. Art and foreign languages.

D. How to fix a computer or how to drive a car.

[  ]

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根据短文内容及首字母提示,填写所缺单词,使短文意思完整。

  Knowing how to use a computer is an essential skill for everyone w  1   wants to succeed in today’s world.One basic computer program that everyone should learn to use is the word processing program.Most types of writing are e  2   produced with a word processing program.For e  3  , everyone must sometimes write a business letter.Using a computer allows you to arrange(整理、排列)and rearrange information easily, making your writing more c  4   and exactly correct.Word processing programs can help you check your s  5   and grammar.A computer makes it easy to correct m  6  

  Computers can be u  7   for much more than word processing, however.Other areas are picture design, programming, and creating new g  8  .Jobs i  9   the computer field are growing, and strong computer skills can s  10   you well now and into the future.

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