摘要:4.desk 与table l desk n. 书桌,写字台,办公桌.通常用于学习.工作中.如: There are 50 desks in our classroom. 我们教室里有50张课桌. l table n. 桌子,台子,餐桌.通常用于日常生活中.如: There is a big table in my bedroom. 我的卧室有一张大桌子.

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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.”
【小题1】When you work at a computer, the keyboard should be ________.

A.at elbow heightB.at eye height
C.on a deskD.on a table
【小题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
【小题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
【小题4】Using a laptop in a wrong position may make ________.
A.people’s sight lowerB.people have cancer
C.people’s arm longerD.people feel pain in the body
【小题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.

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Earthquakes happen without warning(前兆).They can happen any time of a day,at any point during the year.But don’t worry because most are so weak that they cannot be felt. Only a few big ones hurt people. However,it’s important to know what to do when an earthquake is happening.
Do NOT go outside.You could get injured from falling glass or parts of buildings.If you are outside,stay away from buildings and power lines (输电线).
Stay under a desk,table,or other strong furniture(家具).Hold on to it.Or stay in a corner of the building.Cover your face and head with your arms and cover your mouth with a towel(围巾) or clothing.Stay inside until shaking stops and it is safe to go outside.
Keep away from windows,pictures or advertisements on the wall or the building,and anything else that could fall and hurt you.Most people get injured by falling things during an earthquake,not by the shaking itself.
Also keep away from a fire.You could fall down and burn yourself on the fire.
If you are driving when an earthquake happens,stop the car if it’s safe.Stay inside your car until the earthquake stops,and don’t drive near bridges. Try not to stop by power lines or trees.These could fall and hurt you.
【小题1】Most earthquakes are too ----to hurt people.
A.strongB.weakC.dangerous D.heavy
【小题2】From the passage,when an earthquake is happening,we should.
A.stay under a big building
B.stay under a strong furniture
C.stand by windows
D.drive near a big bridge
【小题3】It isn’t safe for you to    while the earthquake is happening.
A.run out of the building
B.stay in a corner of the building
C.cover your head with your arms
D.cover your mouth with a towel
【小题4】This passage tells us .
A.how dangerous the earthquake is.
B.how to be safe in an earthquake.
C.we shouldn’t be afraid of the earthquake.
D.how the earthquake comes into being.
【小题5】The best title for this passage should be“ ”.
A.How Earthquakes Happen
B.How to Drive a Car
C.What We Should Do in Earthquakes
D.Why Earthquakes Happen
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Earthquakes happen without warning(前兆).They can happen any time of a day,at any point during the year.But don’t worry because most are so weak that they cannot be felt. Only a few big ones hurt people. However,it’s important to know what to do when an earthquake is happening.
Do NOT go outside.You could get injured from falling glass or parts of buildings.If you are outside,stay away from buildings and power lines (输电线).
Stay under a desk,table,or other strong furniture.Hold on to it.Or stay in a corner of the building.Cover your face and head with your arms and cover your mouth with a towel or clothing.Stay inside until shaking stops and it is safe to go outside.
Keep away from windows,pictures or advertisements on the wall or the building,and anything else that could fall and hurt you.Most people get injured by falling things during an earthquake,not by the shaking itself.
Also keep away from a fire.You could fall down and burn yourself on the fire.
If you are driving when an earthquake happens,stop the car if it’s safe.Stay inside your car until the earthquake stops,and don’t drive near bridges. Try not to stop by power lines or trees.These could fall and hurt you.
【小题1】Most earthquakes are too          to hurt people.

A.strongB.weak
C.dangerousD.heavy
【小题2】From the passage,when an earthquake is happening,we should          
A.stay under a big buildingB.stay under a strong furniture
C.stand by windowsD.drive near a big bridge
【小题3】It isn’t safe for you to          while the earthquake is happening.
A.run out of the buildingB.stay in a corner of the building
C.cover your head with your armsD.cover your mouth with a towel
【小题4】This passage tells us           
A.how dangerous the earthquake is.
B.how to be safe in an earthquake.
C.we shouldn’t be afraid of the earthquake.
D.how the earthquake comes into being.
【小题5】The best title for this passage should be“        ”.
A.How Earthquakes HappenB.How to Drive a Car
C.What We Should Do in EarthquakesD.Why Earthquakes Happen

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Earthquakes happen without warning(前兆).They can happen any time of a day,at any point during the year.But don’t worry because most are so weak that they cannot be felt. Only a few big ones hurt people. However,it’s important to know what to do when an earthquake is happening.

Do NOT go outside.You could get injured from falling glass or parts of buildings.If you are outside,stay away from buildings and power lines (输电线).

Stay under a desk,table,or other strong furniture.Hold on to it.Or stay in a corner of the building.Cover your face and head with your arms and cover your mouth with a towel or clothing.Stay inside until shaking stops and it is safe to go outside.

Keep away from windows,pictures or advertisements on the wall or the building,and anything else that could fall and hurt you.Most people get injured by falling things during an earthquake,not by the shaking itself.

Also keep away from a fire.You could fall down and burn yourself on the fire.

If you are driving when an earthquake happens,stop the car if it’s safe.Stay inside your car until the earthquake stops,and don’t drive near bridges. Try not to stop by power lines or trees.These could fall and hurt you.

1.Most earthquakes are too          to hurt people.

A.strong                      B.weak

C.dangerous                   D.heavy

2.From the passage,when an earthquake is happening,we should          

A.stay under a big building    B.stay under a strong furniture

C.stand by windows             D.drive near a big bridge

3.It isn’t safe for you to          while the earthquake is happening.

A.run out of the building         B.stay in a corner of the building

C.cover your head with your arms  D.cover your mouth with a towel

4.This passage tells us           

A.how dangerous the earthquake is.

B.how to be safe in an earthquake.

C.we shouldn’t be afraid of the earthquake.

D.how the earthquake comes into being.

5.The best title for this passage should be“         ”.

A.How Earthquakes Happen             B.How to Drive a Car

C.What We Should Do in Earthquakes   D.Why Earthquakes Happen

 

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