Have you ever wanted to know why zebras are black and white? Surely, the zebra is not the animal that only has one color, but it is black and white striped (有条纹的). Why? It’s a question that scientists have been researching for a long time. And the following reasons may make sense.
Zebras use the stripes to protect themselves from lions. The horse-like animal has lots of enemies who feed on them, and the lion is one of them. Luckily, lions are color blind. So the black and white stripes help zebras hide in the grass so that the lions can hardly find them.
Stripes can keep both big animals and little insects away from zebras. Flies usually like to lay their eggs in water. It is said that they prefer to lay their eggs on black things too, as black reflects (反射) the light in the same direction as water. In a certain way, white stripes save the zebras.
According to scientists, stripes can also be a symbol of the zebra. Just like humans, we can find people of the same kind from their eyes, hair or language. Zebras can easily find their own kind from others by the stripes. No other animals have the same stripes like them.
1. Why do lions have difficulty in finding the zebras in the grass?Because the lions are
2. Where do flies probably lay their eggs?
Flies prefer to lay their eggs in water or
3. Which color of stripes can keep flies from zebras?
The
4. Why are stripes a symbol of zebras?
Because the stripes can help zebras
5. What does the passage mainly talk about?
It mainly talks about
Round eyes, a round head, round ears and a round body! What is this little animal? He looks like a little bear. But he is not a bear. He’s a koala. Soft gray fur(毛) covers his little fat body. His eyes look like buttons(纽扣). He has small feet and big ears.
Where do koalas live? In Australia. The people of Australia take care of the koalas. They build places for them to live in. Here the little animals are safe. No one can kill them for their beautiful fur. There are many koalas in Australia. The people of Australia love them very much.
When a koala is born, he has no fur. And he is no bigger than your little toe(脚趾).
The mother koala has a pocket in the front of her body. The baby stays in this warm pocket. There he stays for six months.
When the little koala leaves the pocket, he has lots of fur. And he is about as big as your shoe. He climbs to his mother’s back. And she teaches him to find food.
1. What’s this little animal?2. What color is this animal?
3. Where do the koalas live?
4. Where do they stay when the little koalas are born?
5. Who teaches the little koala to find food?
Pandas are not bears(熊). There are not very many pandas living in the wild(野外). In the world the number of pandas in the wild is less than five hundred. They live only in a small part of China, a country in Asia. Chinese people want to protect them best. Until October, 2011, pandas in the wild could live for eighteen to twenty years. Pandas in the zoo could live for more than thirty years. To save pandas, Chinese people keep them in the zoo.
You might see pandas in the zoo. Pandas are covered with fur. They are white with black legs. They have black fur around their eyes. Their ears are black，too. They have short tails(尾巴). Pandas weigh(重量为) about ninety kilograms. Pandas eat a kind of plant called bamboo. Pandas have strong jaw(下颚). They usually eat bamboo with their large teeth. Sometimes they also eat meat. They spend at least twelve hours each day eating. Pandas like to live and play alone. They do not live in groups. Baby pandas are very small. When they are born, they are about as big as a stick of butter(一条黄油).
1. How many pandas are there in the wild all over the world?2. How long do pandas in the wild can live?
3. Which pandas can live over thirty years?
4. What do pandas usually feed on?
5. Do pandas like to live and play in groups?
