百度作业网英语翻译Bats are the only flying mammals in the world.They can't
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英语翻译
Bats are the only flying mammals in the world.They can't see very well.It was long believed and still is in many places,that all bats are blind."Blind as a bat" is often heard.Yet they have no trouble in flying on the darkest nights and finding their way around very well.How can bats fly and see at night?They fly by radar (雷达)!
The bat's radar system works the same way as the one that ships and planes use.As a bat flies through the air,he makes a sound that is too high for our ears to hear.If the sounds hit things,they come back.The bat's ears receive the messages.In this way they are able to tell the bat where the things are:Bats go out to look for food at night.In the daytime they hang in some dark places.Some people think the bats are bad animals.In fact,they are useful animals.
Bats are the only flying mammals in the world.They can't see very well.It was long believed and still is in many places,that all bats are blind."Blind as a bat" is often heard.Yet they have no trouble in flying on the darkest nights and finding their way around very well.How can bats fly and see at night?They fly by radar (雷达)!
The bat's radar system works the same way as the one that ships and planes use.As a bat flies through the air,he makes a sound that is too high for our ears to hear.If the sounds hit things,they come back.The bat's ears receive the messages.In this way they are able to tell the bat where the things are:Bats go out to look for food at night.In the daytime they hang in some dark places.Some people think the bats are bad animals.In fact,they are useful animals.
世界上唯一会飞行的哺乳动物是蝙蝠.它们的视力不太好.从古至今,在很多地方,蝙蝠被认为是瞎子.“像蝙蝠一样瞎”是经常能听到的.但是,无论黑夜有多么黑,它们都能畅通无阻地飞行,并且能准确找到它们的方向.蝙蝠是怎样在黑夜里进行飞行,又是怎样在黑夜里进行辨别事物的呢?它们靠的是雷达!
蝙蝠的雷达系统和在海上航行的船、在空中飞行的飞机的运行方式是一样的.蝙蝠在空中飞行的时候会发出一种我们人类耳朵听不到的超声波.如果这个声波遇到物体,就会反射回去.然后蝙蝠的耳朵就会接收这个反射信息.通过这种方式,雷达帮助蝙蝠物体的具体位置：这样蝙蝠就能在夜里寻找食物了.白天,蝙蝠会把自己倒挂在不见光的地方.有些人认为蝙蝠是有害动物.其实,它们是有益的.
蝙蝠的雷达系统和在海上航行的船、在空中飞行的飞机的运行方式是一样的.蝙蝠在空中飞行的时候会发出一种我们人类耳朵听不到的超声波.如果这个声波遇到物体,就会反射回去.然后蝙蝠的耳朵就会接收这个反射信息.通过这种方式,雷达帮助蝙蝠物体的具体位置：这样蝙蝠就能在夜里寻找食物了.白天,蝙蝠会把自己倒挂在不见光的地方.有些人认为蝙蝠是有害动物.其实,它们是有益的.
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