Iris 虹膜
The iris is the colored ring around the black part of your eye.
It controls how much light enters your eye by making the pupil smaller or bigger.
People can have brown, blue, green, or even gray irises.
Everyone’s iris pattern is unique, just like a fingerprint.
The iris works all day to help your eyes see clearly in bright and dim light.
When you go outside or come inside, your iris quickly changes to protect your eyes.
虹膜是围绕在眼睛黑色部分周围的有色环。
它会调整瞳孔的大小，从而控制进入眼睛的光线多少。
人们的虹膜颜色可以是棕色、蓝色、绿色，甚至灰色。
每个人的虹膜花纹都不一样，就像指纹一样独特。
虹膜整天都在工作，帮助眼睛在强光和弱光下都能看清东西。
当你从室内到室外或反过来时，虹膜会迅速变化，保护你的眼睛。
配套练习✍️Iris /ˈaɪrɪs/
🔍 完形填空（Cloze Test）
-
The iris is a _____ found around the black part of your eye.
（a. line / b. ring / c. spot） -
One job of the iris is to change the size of the _____.
（a. nose / b. pupil / c. ear） -
People can have different iris _____.
（a. colors / b. clothes / c. hands） -
When you move from a bright room to a dark room, the iris _____.
（a. disappears / b. grows / c. changes） -
Everyone’s iris pattern is as unique as a _____.
（a. footprint / b. fingerprint / c. photograph）
✅ 选择题（Multiple Choice）
-
What does the iris control?
A) The number of eyelashes
B) The amount of light entering the eye
C) The shape of the eye -
Which of the following is not a natural color of the iris?
A) Pink
B) Gray
C) Green -
Why does the iris adjust quickly when you walk outside?
A) To help your eyes see clearly
B) To make the eye color lighter
C) To keep your eyes closed
📝 判断题（True or False）
-
The iris is the same in every person.
(True / False) -
Iris patterns are as unique as fingerprints.
(True / False) -
The iris helps protect your eyes from too much light.
(True / False) -
Only adults have iris color in their eyes.
(True / False)
练习答案✅
完形填空
- b. ring
- b. pupil
- a. colors
- c. changes
- b. fingerprint
选择题
- B) The amount of light entering the eye
- A) Pink
- A) To help your eyes see clearly
判断题
- False
- True
- True
- False
