The eye · 眼睛
| English | 中文 | Pinyin · 拼音 |
|---|---|---|
| cornea/ˈkɔːnɪə/ | 角膜 | jiǎo mó |
| pupil/ˈpjuːpl/ | 瞳孔 | tóng kǒng |
| iris/ˈaɪrɪs/ | 虹膜 | hóng mó |
| lens/lenz/ | 晶状体 | jīng zhuàng tǐ |
| retina/ˈretɪnə/ | 视网膜 | shì wǎng mó |
| optic nerve/ˈɒptɪk nɜːv/ | 视神经 | shì shén jīng |
A living camera
- The eye is a remarkable organ that focuses light to form a clear image.
- Each part has a specific job in capturing and focusing light.
一台活的相机
- 眼睛是一个非凡的器官,聚焦光以形成一个清晰的图像。
- 每个部分在捕获和聚焦光中都有一个特定的工作。
The part that controls the size of the pupil is the: · 控制瞳孔大小的部分是:
The iris adjusts the pupil size. · 虹膜调节瞳孔大小。
Light first enters the eye through the transparent ______. · 光首先通过透明的______进入眼睛。
The cornea does most of the focusing. · 角膜做大部分的聚焦。
Letting light in
- Light enters through the clear cornea 角膜, then the pupil 瞳孔 (the hole in the middle).
- The coloured iris 虹膜 controls how big the pupil is.
Light is focused by the cornea and lens 晶状体 onto the retina 视网膜; impulses leave by the optic nerve 视神经
让光进入
- 光通过透明的角膜(cornea)进入,然后是瞳孔(pupil,中间的孔)。
- 有颜色的虹膜(iris)控制瞳孔有多大。
光被角膜和晶状体聚焦到视网膜上;冲动经视神经离开
Explore the eye · 探索眼睛
Tap each part to follow light through the eye — from the cornea and lens that focus it to the retina that detects it. · 点击每个部分,跟随光通过眼睛——从聚焦它的角膜和晶状体到检测它的视网膜。
Light is focused onto the: · 光被聚焦到:
The lens focuses light onto the retina. · 晶状体把光聚焦到视网膜上。
Focusing the light
- The lens focuses light onto the retina at the back.
- The cornea does most of the focusing; the lens fine-tunes it.
聚焦光
- 晶状体(lens)把光聚焦到后面的视网膜(retina)上。
- 角膜做大部分的聚焦;晶状体进行微调。
Impulses travel from the retina to the brain along the: · 冲动从视网膜沿以下哪个行进到脑:
The optic nerve carries impulses to the brain. · 视神经把冲动携带到脑。
The image formed on the retina is upside down. · 在视网膜上形成的图像是倒着的。
The brain interprets it the right way up. · 脑把它解读为正着的。
Sending the signal
- The retina has light-sensitive cells that turn light into nerve impulses.
- The optic nerve carries these impulses to the brain.
The image on the retina is upside down. The lens flips the image, so it lands inverted on the retina. Your brain turns it the right way up — you never notice.
发送信号
- 视网膜有把光变成神经冲动的光敏细胞。
- 视神经(optic nerve)把这些冲动携带到脑。
视网膜上的图像是倒着的。 晶状体翻转图像,所以它倒着落在视网膜上。你的脑把它转正——你从不注意到。
You've got it
- light enters through the cornea and pupil (size set by the iris)
- the lens focuses light onto the retina
- the retina makes nerve impulses; the optic nerve carries them to the brain
你掌握了
- 光通过角膜和瞳孔(大小由虹膜设定)进入
- 晶状体把光聚焦到视网膜上
- 视网膜制造神经冲动;视神经把它们携带到脑