feelers help the cockroach hear the smallest sound and make it know where you are moving.What if our..., astronauts have come back to the Earth with hearing problems.Bugs can hear me?IT'S difficult to catch ……

. Their main job is to help us hear. But they do much more. There are special organs (器官) in our ears...) their ears to get cool air. So what can we do to protect our ears? Let’s take a look!Ear dos and don’tsDos1 ……

你好呀，耳朵！“Tweet (鸟叫声), tweet, tweet!” Can you hear the birds singing? Our ears help us hear beautiful sounds. But how much do you know about your ears? Let’s take a look! Can you hear clearly? About 34 ……

Hearing is a really special process and our ears are nothing short of amazing. But why do we have... have large ears that help them hear low-frequency sounds over long distances.Our outer ears catch ……

to enjoy different sounds, such as music and the singing of birds. But how do they work? Our ears have... reaching the brain (大脑). But how do they work? Our ears have three parts: the outer ear, the middle ……

and Sophie are good friends.15. Both Sophie's parents are teachers.四. 听短文, 填表格. (每题1分，共5分) AnnAmy... to play tennis C. 18 The sameA. 19B. both like tennisc. both outgoing and funnyD. 20E. both have a lot ……

We do eye exercises. We wear sunglasses. We do lots of things to protect our eyes. But we usually forget another important part of our body－ the ears.Ears help us hear the world. But many things ……

日常生活中应当怎样爱护耳朵？We do eye exercises. We wear sunglasses. We do a lot of things to protect our eyes. But we usually forget another important part of our body－ the ears.Ears help us hear the world ……

.As for our ears, when we hear, the force of sound waves (声波的力度) into different ears is different. Our brain...;As for our ears, when we hear, the force of sound waves (声波的力度) into different ears is different. Our brain ……

volume loss, so the sound we hear is louder. That’s why when we cover our ears, we can still.... That’s why when we cover our ears, we can still clearly hear ourselves.The second reason has ……

were asleep.But ears do more than hear. They help you keep your balance, too. In the inner ear... heard something, but you don’t know what it was, since you were asleep.But ears do more than hear ……

我们是怎么听到声音的?How can we hear? It’s because we have ears, of course. But do you know how our ears work.... This way, you hear sounds around you.Have a go1. How many parts do our ears have?A. One. B. Two. C. Three ……

“Laurel”. How could that be?It has to do with the frequencies (频率) you hear, according to Lars Riecke... differently. As we get older, our ears become less sensitive to high frequencies. So older people are more ……

of one important organ (器官) –   the ear. You may wonder: how do our ears work? The ear... ear and then to your brain (大脑).You may wonder: how do our ears work? The ear has three different ……

课上物理课上Teacher: Why do we see the lightning first, and then hear the thunder?Teacher: Why do we see the lightning first, and then hear the thunder?Tom: Because our eyes are before ears.Tom: Because our eyes ……