你可能不知道的冷知识

张慧

Dolphins never drink water directly[1] from the sea. If they do they will get sick or even die. They

take in water needed for living only from their food.

海豚是不会在海中直接喝水的。如果海豚喝了海水就会生病，甚至可能有致命的危险。他们都是从食物中摄取身体需要的水分。

Humans eyes never get bigger with ages， but their nose and ears never stop growing.

我们的眼睛在我们出生后大小就没变过，但是我们的鼻子和耳朵却永远在长大。

A cat has thirty two muscles in each ear.

猫的每只耳朵里有三十二块肌肉。

鸵鸟的眼睛比脑大。

An ostrichs eye is bigger than its brain.

Scissors are invented by Da Vinci.

剪刀是达芬奇发明的。

A goldfish has a memory span of only three seconds.

金鱼的记忆只能持续3秒。

Women blink[2] almost twice as much as men.

女人眨眼的次数是男人的两倍。

Butterflies taste with their feet.

蝴蝶用脚品尝食物。

You burn more calories[3] sleeping than you do watching TV.

人睡觉时消耗的卡路里比坐着看电视所消耗的要多。

Snails can sleep for three years without eating anything.

蜗牛可不吃东西睡3年。

A starfish has an eye at the end of each arm.

海星的每一条臂尖都有一只眼睛。

Giraffes fight by wrapping[4] their long necks around each other. The one with the longer neck usually has more force and wins at last.

长颈鹿打架时会把它们的长脖子缠在一起看谁的力量大，赢者一般是脖子较长的，因为它的力量更大。

Infants can breath and swallow at the same time， while adults can not.

婴儿可以呼吸和吞咽同时进行，但成人做不到。

Dolphins have ninety six teeth but they eat without chewing[5].

海豚有96颗牙，但它们吃东西根本不用咀嚼。

Cows produce more milk when listening to music.

乳牛听音乐时能供应更多的牛奶。

Elephant is the only mammal that can not jump.

大象是唯一一种不会跳的哺乳类动物。

You cant keep your eyes open when you sneeze[6].

打喷嚏的同时是不可能睁着双眼的。

Why can you hear the roar of the ocean waves when you hold a seashell up to your ear？ The best explanation for that sound is the noise from around you. The seashell that you are holding captures[7] this noise， which resonates[8] inside the shell. The size and shape of the shell has

some effect on the sound you hear. You can produce the same “ocean” sound using an empty cup or even by cupping your hand over your ear.

为什么把贝壳放在耳边会听到海浪的声音呢？最好的解释就是，这声音来源于环境噪声。你拿着的贝壳会捕捉到环境噪音，并在壳内产生共振。贝壳的大小和形状都会对你听到的声音有一定的影响。如果你用一个空杯子替代贝壳或直接用手罩住耳朵，也会听到类似的“海洋”的声音。

[1] directly adv. 直接地 [2] blink v. 眨眼 [3] calory n. 卡路里（热量单位）

[4] wrap v. 围绕 [5] chew v. 咀嚼 [6] sneeze v. 打喷嚏

[7] capture v. 捕获 [8] resonate v. 共鸣