still notice different sounds. When the alarm clock rings, our brains wake us up to see whether... sounds. When the alarm clock rings, our brains wake us up to see whether or not there is real danger ……

. The clock rings and you shut if off.But after a while, the clock rings again. This time it rolls...Most of us struggle to get out of bed everyday. When the alarm clock goes off, we wish we could lie ……

. The clock rings and you shut if off.But after a while, the clock rings again. This time it rolls...Most of us struggle to get out of bed everyday.When the alarm clock goes off, we wish we could lie ……

快来看看这些神奇的闹钟！Can your clock hide itself away? Nanda Clocky in Japan can. Clocky rings. But you don't want to get up. Okay, let's shut it off. But after a while, Clocky rings again. And this time ……

布谷鸟钟和自行车铃
cuckoo clock! Mom will love it!(Charlie rides his bike. He turns the corner and crashes into Postman Pig.)Charlie: Oh, no! The clock is broken!Postman Pig: You were going too fast. And you did not ring ……

inside the clock tower. It rings every hour.The clock has four faces and is famous for itsaccuracy(精确... a month of repairs of the famous clock known as "Big Ben."The team worked nearly 100 meters up ……

sunlight. There is no clock for moon time, which seems a little unfair to the moon, right?Well, now the UK is planning to build the world’s first moon clock, and it’s going to be a huge one. According ……

RESEARCHERS think the human body clock could hinder space exploration.A team at the Imperial... human body clock has a period of 24 hours and 11 minutes. The human body is used to this "circadian ……

going to ask the farmer what to do.”3.Dad rings the farmer. “The farmer says that we have to find an old clock, a teddy and a hot water bottle,” Dad says. Amy finds a hot water bottle in the bathroom ……

the next morning? It's your "body clock". It controls yournightly(每夜的) habits. It makes you feel sleepy and at other times awake. But what controls your body clock? What changes it according ……

."(14) It's 3:00 and Big Ben rings out again. Westworth checks the tower's famous opal glass clock...Behind the face of a famous clock(1) IT'S 1:30 and 36 seconds. Ian Westworth knows this for certain ……

going to ask the farmer what to do.”3.Dad rings the farmer. “The farmer says that we have to find an old clock, a teddy and a hot water bottle,” says Dad. Amy finds a hot water bottle in the bathroom ……

with technology.Deep inside the brain there is a clock that governs every aspect of the body... and is called the biological clock.This body clocks programs us to be sleepy twice a day, between 3–5 ……

Can you color the Olympic rings right? ……

. Scientists believe the habit may be more in tune with our body rhythms than working all day like a slave without a break.A study of mice indicates that the circadian clock, the mechanism that controls ……