Sales of laptop computers passed desktops in the U.S. for the first time ever this fall, according to market-research firm IDC. That's bad news for backs, necks and shoulders.

Laptops are bad for our body. When you work at a computer, the keyboard should be at elbow height and the monitor should be roughly at eye level, so you can sit well in a chair. But most users simply set their laptops on a desk or table. The keyboard is too high, which makes your arms reach up, your shoulders feel tired and your wrists bend down. The monitor is too low, which pulls your head and neck forward and down and your back may feel hurt.

That's OK if you use your laptop for a short time. But if you use one for hours without stopping – as do millions of college students, business travelers, telecommuters, video-gamers and growing numbers of office workers – your body may feel hurt. Ergonomics experts have warned about laptop problems for years. But people still like laptops better than the desktops. And they use laptops anywhere – in bed, on the floor – in all kinds of positions.

“How can a mouse or a keyboard hurt you?” says Thomas Caffrey, the founder of Myofactors LLC, “Wrong positions can be bad for your body. As time goes by, a wrong position can lead to pain in the neck, shoulders, back and arms, as well as headaches.”

1.When you work at a computer, the keyboard should be ________.

A．at elbow height	B．at eye height
C．on a desk	D．on a table

2.The writer asks us not to use the laptop ________.

A．for a short time	B．to play video games
C．for hours without stopping	D．to buy things on the Internet

3.From the passage, we know that laptop computers ________.

A．are not so popular as the desktops

B．are more popular than the desktops

C．are not bad for our body

D．have no mouse now

4.Using a laptop in a wrong position may make ________.

A．people’s sight lower	B．people have cancer
C．people’s arm longer	D．people feel pain in the body

5.According to the passage, which of the following is NOT true?

A．When you use a laptop, you should put your monitor at eye height.

B．Laptop computers sold more than desktops this autumn.

C．To keep healthy, you should use laptop computers.

D．Business travelers often use the laptop computers for a long time.

 

Here is how to leave the supermarket with the things you wanted to buy and nothing more.

Suggestion 1: Pick up a basket. You’ll head straight for the checkout (收款台) when it starts to get heavy. Don’t use the trolleys (购物车) because they will make you put in extra things.

Suggestion 2: Make a list and stick to（坚持） it. Supermarkets usually place things we use every day far away, such as bread and milk. So you have to walk along the aisles (过道) in between, buying things you don’t really need on the way.

Suggestion 3: Keep away from BOGOFs (Buy One Get One Free offers). Just how many watermelons can you eat in a week? Fruit and vegetables usually work out cheaper.

Suggestion 4: Look up and down. The most expensive things are placed in the middle. For cheaper things, check the higher and the lower places.

 

1.How many suggestions does the writer give us?

A．One.

B．Two.

C．Three.

D．Four.

2.To buy things we use every day in the supermarket, we have to ______.

A．pick up a basket	B．look up and down
C．walk along the aisles	D．keep away from BOGOFs

3.The most expensive things are placed in the ______ places.

A．middle

B．high

C．low

D．near

 

  Time is very important in our life. However, I had never realized it until I received a beautiful gold watch from my father one day when I was 19 years old. This watch always   16   me the importance of time in my life.

   It was a cold rainy day. My father asked me to go to the   17  to pick up my uncle and take him home. I should have arrived there before 4:30p.m. We had a basketball match at school that afternoon and the match was so __18  that I forgot the time. When the match was nearly over, I suddenly remembered my uncle and hurried to the airport .It was too late. He had left the airport and take a taxi to our house.

   I was very worried that my father would complain   19   the thing. As soon as I entered the living room, I saw my uncle in the sofa looking very tired. I do not   20  uncle and my father .I said hello to them in a very low voice .My father didn’t say   21   .Instead, he asked me to sit    22   him. “Peter, did you have a good time today?” I felt so sorry and answered in a   23    voice. “Yes, Dad, but I ’m really sorry .This will  24  happen again. I promise.”My father handed me a box with a beautiful gold watch inside .It was a gift my uncle bought for him. He gave it to me and said, “I hope you have learned something important today, and this watch will help you remember the importance of time.”

   The watch has been with me for twelve years .I wear it not because of its price, but because of   25   I learned. It tells me to respect（重视）and never be late to do what I have promised to .

(    ) 16. A.says      B.talks          C.tells           D.gives

(    ) 17. A.hotel      B.station        C.bus stop       D.airport

(    ) 18. A.exciting   B.boring        C.surprising      D.strange

(    ) 19. A.to        B.at            C.about          D.with
(    ) 20. A.look up    B.look at       C.look for        D.look after

(    ) 21. A.anything   B.something    C.nothing         D.everything

(    ) 22. A.behind    B.in front       C.next to         D.down

(    ) 23. A.higher     B.lower        C.bigger         D.smaller

(    ) 24. A.always    B.usually       C.often           D.never

(    ) 25. A.what      B.that          C.which         D.who