Idioms are phrases and sentences that do not mean exactly what they say. Even if you know the meaning of each word you see or hear, you may not understand the idiom because you don’t understand the culture behind it.
For example, if an American boy asks his mother what’s for dinner tomorrow, she may say “I’ll play it by ear”, that means she doesn’t have plans for dinner and she will decide later. "Play by ear" used to mean playing music using the sheet music, but now people often use it when they’re not talking about music.
There’re many idioms in English. If you learn to use them, your English will be more vivid and colorful. English idioms are more common in spoken English. They can be difficult to remember sometimes. Next time when you hear somebody saying to you, "Give me a hand", you don’t necessarily stretch out your hand to him/her, but you do need to be helpful. And when the situation is out of hand, you usually can do very little to manage all that. What about a green hand? It’s not about the color of your hand! You’re a green hand when you are very new at your work and don’t have much experience. If you and your partner always work together hand in glove, you two definitely work together very well.
Can you guess the meanings of some common English idioms to do with parts of your body?
【小题1】What is an idiom ?
【小题2】What does “ Can you give me a hand “ mean ?
【小题3】Are English idioms more common in written English or spoken English ?

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

    Today more and more families own computers. Parents buy computers for their children.

    They hope computers can help them improve(提高) their studies in school. Yet many of the children use computers to play games, to watch video or to sing Karaoke instead of studying. So many teachers and parents complain that computers can not help children to study but make them fall behind. So computers are locked by parents in the boxes.

    In some other countries, even some scientists hate computers. They say computers let millions of people lost 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 people 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?

A. Their students and children use computers to study.

B. Computers let them lost their jobs.

C. Computers make the students and children fall behind.

D. Computers bring people a lot of trouble,

3. In this passage we know computers _______.

A. also bring us trouble

B. bring us happiness only

C. are hated by people

D. are bad for people's health

4.Why do some scientists hate computers?

A. Because computers let people lost their jobs.

B. Because computers bring them trouble.

C. Because some sciestists don't know how to use computers.

D. Both A and B.

5.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 computers

D. computers are strange machines

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.

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 __________.

2.Hand and wrist injuries are caused when you _________.

3.Your eyes and hands will be safe if __________.

4.It is good for your back and neck if you sit __________.

5.What would be the best title for the passage?