The Statue of Liberty enlightening the world is the copper figure of a majestic woman dressed in flowing robes，with the torch of liberty in her raised right hand．In her left arm she carries a tablet of law．Inscribed on the tablet in Roman numerals is the date of the American declaration of independence，July4，1776．
自由女神铜像手里拿的是什么书
照亮世界的自由女神像，是身披飘垂法衣的庄严的女铜像。她右手举起自由的火炬。左手拿着一本法律书板。书板上用罗马字刻着美国独立宣言的日期：一七七六年七月四日。
How Are Marbles Made
Most marbles are made of glass with pigments inserted for colour．To make glass marbles with coloured designs，small rods of coloured hot glass are twisted and rolled together．The candystriped glass is then covered by a layer of clear hot glass．while the glass is still hot and soft，a machine called the“marble scissors”ships off marblesized chunks and forms them into balls．
玻璃弹子是怎样做成的
大多数弹子是由玻璃加上颜料而做成的。为了使玻璃球带有彩色图案，把带色彩的热玻璃小棒放在一起卷扭和滚动。然后，将这些条纹图案的玻璃裹一层透明的热玻璃。当这些玻璃还处在很热和柔软时，一种称做弹子裁剪刀的机器把这些玻璃剪成弹子大小的一块块，并把它们做成球形。
Why Is the Pound Abbreviated“LB．”
Here is why the pound is abbreviated“LB．”when the letters“LB．”do not appear in the spelling of“pound”．In ancient Roman times，the pound，as a unit of weight，was called a“libra”．Our abbreviation for the pound comes from this word．Today we say“pound”instead of libra．But we still use the old abbreviation．
为什么磅缩写为“LB．”
这里要讲的是磅为什么缩写为“LB.”，虽然“pound”（磅）这个词的拼写中并没有“LB.”这两个字母。在古罗马时代，磅作为一个重度单位，称为“libra”。磅的缩写“LB.”就是来自这个词。现在人们用“pound”取替了“libra.”但仍然采用古时候的缩写。
Why Do We Sneeze
Usually we sneeze to get rid of an irritation in the air passages of the nose．Cold germs can irritate the tender lining of the nose．So can dust or pollen from grass or flowers．That’s when we feel that irresistible tickle and…AH—CHOO！During a sneeze，the muscles that help us breathe send out a blast of air．And out goes the bothersome irritation from the nose．
为什么人们会打喷嚏
通常，人们打喷嚏是为了消除鼻腔里的刺激物。寒冷的微生物能刺激鼻腔中非常敏感的内壁。灰尘和草木花粉也是如此。这时人们就感觉痒得无法忍耐，于是就打一声“啊——咄”。打喷嚏时，帮助人们呼吸的肌肉发出一阵气流。于是，令人讨厌的刺激物便被气流冲出鼻腔。
Why Do You Get Dizzy When You Spin Around
The dizziness you feel when spinning around is caused by a fluid sloshing around in your inner ear．Normally，this fluid helps you to keep your balance．The fluid moves when you move．It touches cells that send signals about balance to your brain．When you spin around，th6fluid sloshesaround so violently that your brain receives confused signals．As a result，you feel dizzy．
为什么人们转圈圈时会头晕
人们转圈圈时会觉得头发晕，这是因为内耳里有一种液体在晃动的缘故。通常，这种液体能够使人保持身体平衡。这种液体随着身体的运动而晃动，它接触为大脑传送平衡信号的细胞。当人们转圈圈时，这种液体剧烈地摇晃，致使大脑收到混乱的信号，结果引起头晕。
Why Do Some People Have Freckles
The brown pigment，or melanin，which determines your skin colour causes freckles．All of us have some melanin in our skin．Usually，melanin is evenly distributed in the skin．But some times this melanin is produced in small spots．These dark spots of melanin are your freckles．Freckles can be inherited from your parents．So it’s quite possible that if they have freckles，so will you．
为什么有的人有雀斑
皮肤的颜色是由褐色素或称黑色素所决定的。这种色素也可引起雀斑。每个人的皮肤里都有一定的黑色素。通常，黑色素很均匀地分布在皮肤里。但是，有时候黑色素却生长成为一些小黑点。这些由黑色素形成的黑点就是雀斑。雀斑可以是从父母那里遗传来的。如果父母有雀斑，其子女也很可能有。
Why Do People Have Eyebrows
Taking baths in the dust may help birds get rid of insect pests that find their way under the feathers．The powdery dust may also help to smooth the feathers and keep them in good condition for flying．After dusting，a bird combs its bill over the feathers to make them lie smoothly．
人的眉毛有什么用处
眉毛能保护眼睛。每当人们因为热而汗流满面时，眉毛可以阻止额头上的汗水流进眼睛，免得使视线模糊。浓密的眉毛能遮住光线，保护眼睛。眉毛还可以保护多骨的额头免遭猛烈的撞击。人们的喜怒哀乐，各种感情无不流露在眉梢上。
Why Does Salty Food Make Us Thirsty
We need salt in our bodies to keep us healthy．But the amount of salt in the body must be kept exactly right．If the food we eat is very salty，the body rids itself of the extra salt by washing it away with water through the kidneys．Because the body loses a lot of water in order to get rid of the extra salt，we become thirsty．
为什么吃咸的食物会使人口渴
我们身体需要盐分来保持健康，但是身体内盐分的数量必须保持适当。如果我们吃的食物非常咸，那么我们身体就要用水分通过肾脏把多余的盐分排出。由于要排出多余的盐分，我们身体就需要耗掉大量的水分，所以我们感到口渴。
Why Do Older People Have Wrinkles
