What must you do when you get a present for your birthday? You have to sit down and

w 1. a thank-note. The words“thank you” are very important. We have to use them very

o2.We say them when someone gives us a drink, h3.us to pick up things,

or lends us a book.

Another i4.word is “please”. Many people forget to use it. It is not polite to ask someone to do something without s5.“please”. We have to use it w6.we ask for something, too. It may be a book or a pencil, more rice or help.

We have to l7.to say “sorry”, too. If we hurt (伤害)someone, we’ll have to go up to say “we’re s8.”. When we forget something, we will a9.say “sorry”.

These three words are easy b 10. important. Our children must learn to use them. They are pleasing(令人高兴的) words to use in any language(语言).

 

Computers are useful machines. They can help people a lot in their daily life. For example, they can help people to save much time to do more work, and they can help people to work out many problems they can't do easily. Our country asks everyone to learn to use computers before the twenty-first century, except the old people.

Today more and more families own computers. Parents buy computers for their children. They hope computers can help them improve their studies in school. However, many of their children use computers to play games, to watch videos or to sing. The teachers and parents complain that computers can not help children to study but make them fall behind. So computers are locked in boxes by parents.

In some other countries, even some scientists also hate computers. They say computers let millions of people lose their jobs or bring them a lot of trouble. Will computers really bring trouble to people or can they bring people happiness?

It will be decided by today's students themselves!

1.Why do we say the computer is a useful machine? Because ______. 

A．our country asks us to learn it

B．it can help us a lot

C．we can use it to play games

D．it can help us to find jobs

2.What do many teachers and parents complain about? They complain that ______ .  

A．their students and children use computers to study.

B．computers let them lose their jobs

C．computers make their students and children fall behind

D．computers bring people a lot of trouble

3.How do you understand the last sentence of this passage? I think it means ______. 

A．computers are used by people

B．people can live well without computers

C．one must decide how to use computer

D．computers are strange machines

 

                                 
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.
【小题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

【小题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

【小题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

【小题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

【小题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

People know the danger of fires. It’s good for a family to learn how to prepare for a fire. Here are some suggestions:

Put a smoke alarm in the house. Smoke from a fire causes the alarm to go off. The alarm makes a loud sound. The sound tells everyone to leave the house at once.

Make escape (逃脱) plans. They should know all the ways out of the house. If there is a fire, everyone follows the plan to get out. Part of the plan is to check all the windows to make sure they can be opened easily.

Buy fire extinguishers (灭火器) in the house. Everyone in the family should know how to use them.

Practice for a fire. They do fire practice because they teach children about fire safety. Everyone in the family should know the following fire rules:

    ＊Don’t open a hot door! The fire can grow more quickly if you open the door.

＊Stay close to the floor! Smoke can be more dangerous than fire; the best air is near the floor because smoke rises.

＊What will you do if you hair or clothes start to burn? First, stop! Don’t run! The fire burns faster because of more air. Drop! Fall to the floor. They roll! Turning over and over will make the fire go out. Put a blanket (毯子) around you to keep air away from the fire that may still be on you.

There are many possible causes for firs. A wise family is ready all the time. If there is a fire, don’t forget to call 119 for help.

1.What does it mean when a smoke alarm rings at home?

    A. You have to get up.                  B. Water is running to the floor.

    C. Something is burning.                D. Someone breaks your window.

2.The writer advices people to do the following to prepare for a fire except that _______.

    A. they practice for a fire             B. they make escape plans

    C. they buy fire extinguishers              D. they use electrical cookers

3.When a fire happens, _______ if you open the hot door.

    A. the fire will grow more quickly          B. the electricity will be cut off

    C. the door will soon be on fire            D. the house will fall down

4.What are the right steps you should take when your hair or clothes catch fire?

    A. Stop, run, roll.                     B. Stop, drop, roll.

    C. Run, drop, roll.                     D. Roll, drop, stop

5.What is the best title for this passage?

    A. The Dangers of a Fire.               B. The Cause of a Fire.

    C. Learn to Use a Fire Extinguisher.        D. Be Ready for a Fire.

 

根据情景和所给的首字母，在空格内填入一个适当的单词，使对话意思完整

What must you do when you get a present for your birthday? You have to sit down and

w  1  a thank-note. The w 2   “thank you” are very important. We have to use them very often. We say them when someone gives us a drink, h  3   us to pick up things, or lends us a book.

A  4    important word is “please”. Many people forget to use it. It is n  5    polite to ask someone to do something without s  6    “please”. We have to use it when we ask for something, too. It may be a book or a pencil, more rice or help.

We have to l  7    to say “sorry”, too. When we hurt someone, we’ll have to go up to say “we’re sorry”. When we forget something, we will a  8    say “sorry”.

These three words are easy b  9    important. Our children must learn to use them. They are pleasant words to use in a  10    language.