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Do you know why different animals or pests (害虫) have their special colors? Colors in them seem to be used mainly to protect themselves.

Some birds like eating locusts (蝗虫). But birds cannot easily catch them. Why? It is because locusts change their colors together with the change of the colors of crops. When crops are green, locusts look green. But as the harvest time comes, locusts change to the same brown color as crops have. Some other pests with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives and appear only at night.

If you study the animal life, you’ll find the main use of coloring is protecting themselves. Bears, tigers and other animals move quietly through forests. They cannot be seen by hunters. This is because they have the colors much like the trees.

Have you ever noticed an even stranger act? An octopus (章鱼) can send out a kind of very black liquid when it faces danger. While the liquid spreads over, the enemies cannot find it. And it immediately swims away. So it has lived up to now though it isn’t strong at all.

【小题1】From the passage we learn that locusts ________.
A.are small animalsB.are easily found by birds
C.are dangerous to their enemiesD.change their colors to protect themselves
【小题2】How can pests with different colors from plants keep out of danger?
A.They run away quickly.
B.Their colors are like their enemies’.
C.They hide themselves in the day and appear at night.
D.They have to move quietly.
【小题3】Bears and tigers can keep safe because they ________.
A.have the colors much like the treesB.move quickly
C.like brown and grey colorsD.live in forests
【小题4】An octopus lives up to now because ________.
A.it is very big and strong
B.the liquid it sends out helps it escape from its enemies
C.the liquid it sends out can kill its enemies
D.it swims faster than any other fish
【小题5】Which is the BEST title for this passage?
A.The Changes of Colors for Animals and PestsB.Colors of Different Animals and Pests
C.The Main Use of Colors for Animals and PestsD.Some Animals and Pests
22-23八年级下·全国·单元测试
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Do you know anyone born in the Year of the Tiger? What’s their personality like? Are they brave, strong and tenacious (坚韧的)? If so, then they are a typical “tiger”.

In Chinese culture, tigers are considered the king of all animals. They stand for power, energy and protection. Tigers are regarded as fearless animals, so that’s why in China you can see pictures of tigers on the walls of houses to keep away danger.

Tigers have an important cultural meaning not just in China, but across Asia. As they mostly live in Asia, for many people in the West, they have become a cultural symbol of Eastern countries and regions. For example, strong economies in the East—Singapore, South Korea, China’s Hong Kong and Taiwan—were called “The Four Asian Tigers”. In the book Life of Pi, Canadian writer Yann Martel chooses a Bengal tiger as the partner for the Indian boy Pion his adventure in the Pacific Ocean.

In the West, . A famous phrase is “eye of the tiger”, which means power and strength. In English, if you want someone to calm down, you can say to them, “Easy, tiger.”

Tigers are also one of my favourite animals. I first learned about the beauty of tigers as a child, while watching animal programs. If you ask my mom, she’ll tell you that my favourite toy was my toy tiger, which I have treasured dearly to this day. As an animal lover, I feel so sad that they are in danger and I want to help protect them.

Just as tigers serve as a symbol of protection in Chinese culture, we hope that in the Year of the Tiger more people can learn about tigers and help protect them.

根据材料内容选择最佳答案。
【小题1】What’s the purpose of asking the questions in Paragraph 1?
A.To discuss the importance of tigers.
B.To lead into the topic of the passage.
C.To ask readers to answer the questions.
D.To check readers’ knowledge about tigers.
【小题2】Why can we see pictures of tigers on the walls of Chinese houses?
A.Because they mean wealth.
B.Because they are welcomed by kids.
C.Because they can make people become brave.
D.Because they serve as a symbol of protection.
【小题3】If you want someone to calm down, which one can you use?
A.Eye of the tiger.
B.Work like a tiger.
C.Easy, tiger.
D.Choose a tiger as the partner.
【小题4】Which of the following is the best to fill in “” in Paragraph 4?
A.tigers also have special meanings in their culture
B.people can make friends with tigers easily
C.tigers are also seen as a very powerful animal
D.different people have different ideas about tigers
【小题5】What does the writer mainly want to tell us in the last two paragraphs?
A.The writer can’t wait to enjoy the Year of the Tiger.
B.The writer really loved the tiger when he was a child.
C.More and more people will love the tiger in the future.
D.The writer is worried about the tigers and hopes to protect them.

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