英语阅读翻译51A,接纳人工翻译,在线等,急急急
Supposeyouarereadingabook.Suppose,too,yousuddenlycloseyoureyes.Canyoustillseethebook?...
Suppose you are reading a book.Suppose,too,you suddenly close your eyes.Can you still see the book?"Of course not,"you will say.But can you tell why?You would probably say,"when I close my eyes my eyesight cannot get out of my eyes to get to the book."But this explanation is wrong.
You cannot see any object unless light from that object gets into your eyes.Some of the things you see give off light of their own.The sun,the stars,a lighted lamp are the examples that can be seen by their own light.Such things are luminous.Most of the things you see are not giving off light of their own.They are simply reflecting(反射) light that falls on them from the sun or some other luminous body.The moon,for example,doesn’t give off any light of its own.It is nonluminous.You see it because sunlight falls on it and some of it reflects in our direction.So moonlight is only second-hand sunlight.
When you look at a book,it sends some of the light which falls on it to your eyes,and you see the book.If light could be kept out from where you are so that there would be no light from the book to reflect,then you could not see the book even with your eyes wide open.
Light travels so fast that the time in which it travels from the book you are reading to your eyes is as short as if there were no time at all.Light reaches us from the moon,which is about 380 000 kilometres away,in only a little more than a second. 展开
You cannot see any object unless light from that object gets into your eyes.Some of the things you see give off light of their own.The sun,the stars,a lighted lamp are the examples that can be seen by their own light.Such things are luminous.Most of the things you see are not giving off light of their own.They are simply reflecting(反射) light that falls on them from the sun or some other luminous body.The moon,for example,doesn’t give off any light of its own.It is nonluminous.You see it because sunlight falls on it and some of it reflects in our direction.So moonlight is only second-hand sunlight.
When you look at a book,it sends some of the light which falls on it to your eyes,and you see the book.If light could be kept out from where you are so that there would be no light from the book to reflect,then you could not see the book even with your eyes wide open.
Light travels so fast that the time in which it travels from the book you are reading to your eyes is as short as if there were no time at all.Light reaches us from the moon,which is about 380 000 kilometres away,in only a little more than a second. 展开
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假设你在读一本书。同时,假设你突然闭上了眼睛。那么你还能看见那本书吗?当然你会说“台看不见”。但是你知道为什么吗。也许你会说我的视线无法触及到那本书。但是这个理解是错误的。你看不见任何东西除非那样东西反射的光进入了你的眼睛。你所看见的有些东西它自身就发出一些光亮。比如太阳,星星,台灯这些东西能被看见都是因为它们自身的光亮。这些东西都是发光的。但是大多数你所能看见的东西自身都不能发光。它们仅仅是反射了太阳或者其他一些能发光的物体所发出的光。比如说月亮,它自己不能发光。它是不能发光的物体。你能看见他是因为太阳光的反射,并进入我们的视线。所以月光只是次级的太阳光。
当你看一本书的时候,他会反射一些光到你的视线,然后你就能看见他了。如果你的周围没有亮光,那也就没有光可以被反射,那样即使你睁大眼睛也看不见书。
光速很快,当它反射时经由书本到达你的眼睛速度快的仿佛根本不需要时间一样。我们所看到的月光距离我们有380000千米远,只不过需要一秒多一点而已。
当你看一本书的时候,他会反射一些光到你的视线,然后你就能看见他了。如果你的周围没有亮光,那也就没有光可以被反射,那样即使你睁大眼睛也看不见书。
光速很快,当它反射时经由书本到达你的眼睛速度快的仿佛根本不需要时间一样。我们所看到的月光距离我们有380000千米远,只不过需要一秒多一点而已。
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假想,你正在看一本书,然后,你突然的闭上眼睛。那,你还可以看到书吗?“肯定是不能”你会这样回答。但是你知道为什么吗?你可能会说,“当我闭上我的眼睛的时候,我的视线就不能从我眼睛里到达书本上了。”然而,这样的解释是不对的。
除非光线从物体到达你的眼睛,否则你不可以看到任何的东西。你看到的有一些东西是自己放出光的。例如,太阳,星星,电灯泡等都是很闪耀的。很多的你看到的东西自身是不能放出光芒的,它们只是把太阳或者是一些自身可以发光的的光芒反射出来了。例如,月亮,它就不能自己发出光芒,你看到的只是太阳的光由它反射到达了我们的眼睛。因此月光是反射的光。
当你看书的时候,它就发射了一些光到达你的眼睛,然后你就看到了书上的文字。如果光线与你的位置隔离了,那么久不会有光被书给反射到你的眼睛,那么即使你打开你的眼睛,你也是不可以看到书上的文字的。
光的速度很快,因此当你在看书的时候,你根本就感觉不到光是经历了由书反射到你眼睛的那段时间。光从距我们有大约380 000千米远的月球上传到我们的眼睛,连一秒钟都没有用。
除非光线从物体到达你的眼睛,否则你不可以看到任何的东西。你看到的有一些东西是自己放出光的。例如,太阳,星星,电灯泡等都是很闪耀的。很多的你看到的东西自身是不能放出光芒的,它们只是把太阳或者是一些自身可以发光的的光芒反射出来了。例如,月亮,它就不能自己发出光芒,你看到的只是太阳的光由它反射到达了我们的眼睛。因此月光是反射的光。
当你看书的时候,它就发射了一些光到达你的眼睛,然后你就看到了书上的文字。如果光线与你的位置隔离了,那么久不会有光被书给反射到你的眼睛,那么即使你打开你的眼睛,你也是不可以看到书上的文字的。
光的速度很快,因此当你在看书的时候,你根本就感觉不到光是经历了由书反射到你眼睛的那段时间。光从距我们有大约380 000千米远的月球上传到我们的眼睛,连一秒钟都没有用。
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眼睛为什么能看见物体
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