初三英语短文填空When you sing in the shower your voice sounds louder

初三英语短文填空
When you sing in the shower your voice sounds louder and richer.Did you ever w why?
Your voice sounds loud in the bathroom because the room is small.Sound is a f of wave energy that can t through air.But sound waves lose strength as they move through the air.That means that it gets h to hear a sound the farther you are from its source (来源).In the bathroom,the sound waves do not go very far.Sounds stay loud.You don’t even need a microphone (扩音器) to feel like you’re on stage at a music concert!
The walls,ceiling ,and floor a help your voice sound better.Sound waves bounce (反弹) off the hard surfaces in a bathroom and come b to you.This makes your voice sound louder and clearer.
The air in the bathroom really gets into the act.Sound waves make the air vibrate (振动).In a small space,this lets your ears c a lot of those song vibrations.
There’s a kind of wave that gets things shaking in your house.Can you guess what it is?Take a trip to the kitchen.
When you sing in the shower your voice sounds louder and richer.Did you ever w why?
Your voice sounds loud in the bathroom because the room is small.Sound is a (f )of wave energy that can (t )through air.But sound waves lose strength as they move through the air.That means that it gets (h )to hear a sound the farther you are from its source (来源).In the bathroom,the sound waves do not go very far.Sounds stay loud.You don’t even need a microphone (扩音器) to feel like you’re on stage at a music concert!
The walls,ceiling ,and floor (a ) help your voice sound better.Sound waves bounce (反弹) off the hard surfaces in a bathroom and come (b ) to you.This makes your voice sound louder and clearer.
In a small space,this lets your ears (c ) a lot of those song vibrations.
There’s (a ) kind of wave that gets things shaking in your house.Can you guess what it is?

1,wonder
2,frequency
3,travel
4,higher
5,also
6,back
7,collect
8,another
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