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

Do you know why different animals or insects have their special colors? Colors are used mainly to protect themselves.

Why can’t some birds easily catch locusts（蝗虫）? It is because locusts change their colors together with the change of the colors of crops. When crops are green, locusts look green. But as autumn comes, locusts change to the same brown color as crops have. Some other insects with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives in the day and appear only at night.

If you study the animal life, you’ll find the main use of coloring is to protect themselves. Bears, lions and other animals can’t be easily seen by hunters. This is because they have the colors much like the trees.

Have you ever noticed an even more strange thing? A kind of fish in the sea can send out black liquid when it faces danger. While the liquid spreads over, its enemies can’t find it. And it quickly swims away. So it has lived up to now though it is not strong at all.

1. From the article we learn that locusts 　　　　　　　　　.

A. are dangerous to their enemies           B. are easily found by birds

C. change their colors to protect themselves   D. are small animals

2.How can insects with different colors from plants keep out of danger?

A. They have to move quietly.

B. They hide themselves in the day and appear at night.

C. They have the colors much like their enemies.

D. They run away quickly.

3. Bears and lions can keep safe because 　　　　　　　　　.

A. they live in forests                  B. they like brown and grey colors

C. they move quietly　                   D. they have the colors similar to the trees

4.What does the word “liquid” mean in the last paragraph?

A. 气体          B. 固体　       C. 液体　       D. 水蒸气

5. Which is the best title for this passage?

A. The Main Use of Colors for Animals and Insects

B. Colors of Different Animals and Insects

C. The Change of Colors for Animals and Insects

D. The Change of Different Animals and Plants

 

 

A 10-year-old boy decided to study judo (柔道), although he had lost his left arm in a car accident.

　　The boy began lessons with an old Japanese judo teacher, Mr. Tanaka. The boy was doing well, but his teacher had taught him only one move in three months of training.

　　“Mr. Tanaka,” the boy finally asked, “shouldn’t I be learning more moves？”

　　“This is the only move you know, but this is the only move you’ll ever need to know,” his teacher replied.

　　Several months later, Mr. Tanaka took the boy to his first tournament (锦标赛). The boy won his first three matches, using his one move to win. The boy was now in the finals, and was amazed by his own success.

　　This time, his opponent (对手) was bigger, stronger, and more experienced. The referee (裁判) wanted to stop the match.

　　“No,” the teacher insisted, “let him continue.” Soon, his opponent lowered his guard. At that moment the boy used his move to pin (钉住) him. The boy won the match and became the champion.

　　On the way home, the boy and his teacher reviewed every match. Then the boy asked what was really in his mind.

　　“Mr. Tanaka, how did I win the tournament with only one move？”

　　“You won for two reasons,” his teacher answered. “First, you’ve almost mastered one of the most difficult throws in all of judo. And second, the only defense (防守) for that move is for your opponent to catch your left arm.”

　　The boy’s biggest weakness had become his biggest strength (优点).

1.The boy decided to study judo though ____________.

A．he was only ten years old

B．he would have an old teacher

C．he had lost his left arm in a car accident

D．he knew he was not clever

2.How did the boy feel when he was in the finals？

A．Proud.   B．Surprised.   C．Worried.   D．Happy.

3.What can you infer (推断) from the passage？

A．The boy wasn’t doing well at first.

B．Mr. Tanaka is a good teacher because he knows his student’s strength and weakness.

C．The referee believed the boy would win.

D．The boy had predicted that he would win.

 

Are you still doing the V for victory sign? It’s out. The latest popular hand gesture（手势）is to curl both of your hands and put them together to make a heart—shape. Known as “hand heart”, many young stars in the US including Justin Bieber , Blake Lively and Taylor Swift have done the move in recent photos.
“The heart — hand gesture means something between ‘I love you’ and ‘thank you’, ”said the country singer Taylor Swift,21.”It’s a sweet, simple message which you can send without saying a word.”
Taylor Swift often puts her hands above her head in the heart shape at her concerts. And she is believed to be the first to make the gesture popular.
Last month during a charity show, Justin Bieber and his superstar friends did it to help out three kids whose parents were killed in a car accident. The gesture became a real hit after that.
“It used to take longer for nonverbal（不用语言的）culture to move. But now ,with smart phones and the Internet, it’s much faster,” said Patti Wood, an American language expert.
In the Republic of Korea, the hand heart has been popular for a long time, in a different way. People there like making a “bigger heart” by putting their hands above their heads and making a heart shape with their arms. It means: “I love you.”
【小题1】When we want to express ideas, we often move our hands to mean something besides language. Do you know the meaning of this gesture(手势)?

A．Good luck.	B．We’ve won.
C．Everything is all right.	D．Best wishes.

【小题2】Who is the first to make the heart — hand gesture popular?

A．Justin Bieber

B．Blake Lively

C．Patti Wood

D．Taylor Swift

【小题3】A charity show is a show that is put on to.

A．help the people in need	B．make a gesture popular
C．express your love or thanks	D．show your special gesture

【小题4】Which of the following statements is true?

A．Smart phones and the Internet are improving fast.

B．Smart phones and the Internet used to take longer time in use.

C．It’s much easier for nonverbal culture to reach more people.

D．It takes nonverbal culture a long time to become popular.

选词填空

other, move, enough, find ,desert, make, use another, friend , carry , trouble, friendly

You may think there is nothing but sand in the desert of the world, but it is not true. In the desert we can   76   stones. We can see hills, too. There is a little rain in the   77   , but it is not   78  for most plants.

　　The animals are   79  to the desert people in many ways. The desert people eat the meat and drink the milk of the animals. They use their skins to    80  shoes, water bags and even tents(帐篷). They use the camels(骆驼) for   81  things.

The people of the desert have to keep    82  from places to place. They must always look for grass or desert plants for their animals. They usually live in the tents. When there is mo more food for their animals, they take down their tents, put them on the camels and move to    83  place. The desert people are very   84 . No man in the desert would ever refuse to help the people in   85  and give them food and water