Can you imagine astronauts' everyday life in space? They also need to eat,  sleep, exercise and relax. They do the same things as us, but they do them differently.

On Earth, we put food on a plate. Gravity holds the food down and keeps it on a place. But there is almost no gravity in space, so food can float (漂浮)away, and astronauts must eat carefully.

Sleeping is very different in space. Some astronauts like to float in the air, but most like to be in a sleeping bag. They tie the bag to a wall so that they won't float away at night.

Exercise is very important in space. On Earth,  your legs carry your body,  but in space, astronauts float, so they do not use their legs often. This is very bad for their legs, so they must exercise for thirty minutes every day.

After a day's work, astronauts relax. They may listen to music, read, watch films, play games, or talk to their friends and families on the radio. Sometimes they just enjoy floating in the air.

1.What does the underlined word "gravity" mean in Chinese?

A.平衡

B.引力

C.磁性

D.重力

2.Why do astronauts tie the sleeping bag to a wall?

A.Because in that way they won't float away.

B.Because that makes them sleep well.

C.Because they can't get to sleep if they don't do that.

D.Because the sleeping bag is not safe enough.

3.What's the main idea of the passage?

A.It is about the importance of gravity.

B.It is about astronauts' everyday life in space.

C.It is about the differences between space and Earth.

D.It is about how to avoid (避免) floating away while sleeping.

 

You must have seen ads on TV about hair care products (护发用品). The models have shining hair like jewels (珠宝). But now to make hair shine is no longer the task of hair care products, because hair can be made into real jewels. Believe it or not, a company called LifeGem in the US turns hair into jewels.

The company is in the business of taking hair from dead people and making it into diamonds (钻石). The diamonds are for the families to remember the dead people.

Now the company plans to make three diamonds using Beethoven's hair to show their latest technology (技术). The work will take about 7 months and in the end, Beethoven's long hair will become 3 shining diamonds between 0.5 to 1 carat (克拉)in size.

Since the great musician died in 1827, you may wonder how they got Beethoven's hair. Actually, the hair was given by John Rezniloff, who holds the Guinness World Record for the largest and most valuable collection of celebrities' (名人) hair. His collection also includes hair of Napoleon, Albert Einstein,  Abraham Lincoln and John F. Kennedy. In total,  the collection is worth over 5 million dollars.

Though it sounds unbelievable (难以置信), to have such diamonds made with hair may be a good way to show respect (尊敬) and love to those who died.

1.What does the company of LifeGem do?

A.It buys shining hair.

B.It produces hair care products.

C.It uses hair to make jewels.

D.It sells expensive diamonds to famous people.

2.Why does the company decide to make diamonds out of Beethoven's hair?

A.To show the latest technology.

B.To make the biggest diamond.

C.To make the most shining diamond.

D.To help the dead people become famous.

3.How long will the work take?

A.Half a month.

B.One month.

C.Three months.

D.Seven months.

4.What does the underlined word "it" refer to?

A.The collection of celebrities' hair.

B.The making of hair care products.

C.To make diamonds with hair.

D.The Guinness World Record.

 

 0  33624  33632  33638  33642  33648  33650  33654  33660  33662  33668  33674  33678  33680  33684  33690  33692  33698  33702  33704  33708  33710  33714  33716  33718  33719  33720  33722  33723  33724  33726  33728  33732  33734  33738  33740  33744  33750  33752  33758  33762  33764  33768  33774  33780  33782  33788  33792  33794  33800  33804  33810  33818  159627 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网