高二课标英语周报答案2020-2021第11期，小编收集了高二课标英语周报答案2020-2021第11期的相关答案，没有答案的敬请期待！完整版的周报答案关注wx号：趣找答案
1. 阅读短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。
I was asked by a reader recently why so
many animals seem to have pink ears, when their bodies are all different
colours? The truth is that most animals actually don't have pink ears. Let us
explain.
Near the equator (赤道), where the climate is hot, animals are likely to have darker skin,
including on their ears. Think of the African elephant, which has quite dark
ears. In colder climates, skin colour is usually lighter and often pink.
Why is skin colour different in different
climates？Skin pigmentation, which is what gives skin its colour, can protect
against sunburn and skin cancer (癌症). When animals live
in colder parts of the world, they don't need it as much to survive. Light-coloured
skin also helps animals stay warmer because it reduces heat loss, which is
useful if you're in a colder climate.
For most animals, the colour of their fur
or other body covering has generally developed as camouflage. That allows
animals to mix into the background and avoid being eaten, or for predators (捕食者) to remain hidden during hunting. One example is the sandy-coloured
coat of the desert fennec fox, which uses camouflage for both hunting and
hiding.
By the way, in many animals, ears come in
many different shapes and sizes. For example, in bats, the serval (a type of
African wildcat) and the fennec fox, the ears are large compared to their body
size—this helps them hear better because it allows them to sense more
sound waves. Naked mole-rats have tiny ears because
they need to dig a lot. Big ears would get in the way. The other downside of
big ears is that you can lose a lot of body heat. That's why animals that live
in really cold places, like the Arctic fox, have quite small ears.
（1）Who is the author most likely to be?
A . A teacher.
B . A librarian.
C . A zoo worker.
D . A science writer.
（2）What does the underlined word "it" in Paragraph 3 refer to?
A . Sunlight
B . Camouflage
C . Skin pigmentation
D . Light-coloured skin
（3）Which animal uses its skin colour to protect itself from being eaten?
A . The Arctic fox.
B . The naked mole-rat.
C . The African elephant.
D . The desert fennec fox.
（4）What do we know about animals living in cold places?
A . They usually have small light-coloured ears.
B . They know ways to store body heat.
C . They need big ears to keep warm.
D . They usually have good hearing.
