五、新素养 自然探究 阅读所给材料,选择正确的答案。
Yellow, green, rainbow... Animals have a lot of beautiful and different colours. These colours are important to them. Some animals use the colours to scare away(吓跑) or hide from unfriendly animals. Others use the colours to find their partners. But how do animals have their colours?
Food gives them colours Some animals get colours from their food. For example, flamingos(火烈鸟) eat a lot of shrimp or sea plants. These things have a red-orange colour. The colour of the food gives flamingos a pink colour. The more they eat, the pinker they get.
Body gives them colours Animals' body parts, like feathers, hair and skin, have special structure. They reflect(反射) light to make animals colourful. This is called structural colour(结构色). For example, blue butterflies have fancy scales(鳞片) on their wings. This gives them a bright blue colour. Structural colours don't fade(变暗). People use the idea to make special clothes and paints.
( )1. Animals can use their colours to ______.
A. protect(保护) themselves
B. find their partners
C. A & B
( )2. The author lists ______ ways in which animals have their own colours.
A. two
B. three
C. four
( )3. Flamingos have pink colour because they ______.
A. like red-orange colour
B. eat lots of shrimp or sea plants
C. live in pink water
( )4. What can we know about structural colours according to the material?
A. They fade over time.
B. Structural colours are dark.
C. They're from the light reflected from animals' body parts.
( )5. How do people use the idea of structural colours?
A. To make special clothes and paints.
B. To build colourful houses.
C. To make special food.
Yellow, green, rainbow... Animals have a lot of beautiful and different colours. These colours are important to them. Some animals use the colours to scare away(吓跑) or hide from unfriendly animals. Others use the colours to find their partners. But how do animals have their colours?
Food gives them colours Some animals get colours from their food. For example, flamingos(火烈鸟) eat a lot of shrimp or sea plants. These things have a red-orange colour. The colour of the food gives flamingos a pink colour. The more they eat, the pinker they get.
Body gives them colours Animals' body parts, like feathers, hair and skin, have special structure. They reflect(反射) light to make animals colourful. This is called structural colour(结构色). For example, blue butterflies have fancy scales(鳞片) on their wings. This gives them a bright blue colour. Structural colours don't fade(变暗). People use the idea to make special clothes and paints.
( )1. Animals can use their colours to ______.
A. protect(保护) themselves
B. find their partners
C. A & B
( )2. The author lists ______ ways in which animals have their own colours.
A. two
B. three
C. four
( )3. Flamingos have pink colour because they ______.
A. like red-orange colour
B. eat lots of shrimp or sea plants
C. live in pink water
( )4. What can we know about structural colours according to the material?
A. They fade over time.
B. Structural colours are dark.
C. They're from the light reflected from animals' body parts.
( )5. How do people use the idea of structural colours?
A. To make special clothes and paints.
B. To build colourful houses.
C. To make special food.
答案
1. C 2. A 3. B 4. C 解析 根据“Animals' body parts, like feathers, hair and skin, have special structure. They reflect light to make animals colourful.”可知，结构色来自动物身上的一些特殊结构的光反射，C 选项表述正确。故选 C。5. A
