题型:阅读选择 题类:模拟题 难易度:普通
Few people like insects (昆虫) because they are dirty and often bit e people. Here are some of them. They are common in our life.
Dung beetles (屎壳郎) are very strong. They can pull things which are 1,000 times heavier than them. They are good at making big dung balls. They love anything to do with dung. They even eat dung. That's so funny. | |
It's common to see fireflies (萤火虫) on summer nights. Fireflies live near water or in a wet environment. At night, fireflies fly up from grass. They blink (闪烁) their lights and look very friendly. But most fireflies eat snails (蜗牛) for food. Usually many fireflies share a snail. | |
Cockroaches (蟑螂) live in dark, warm and wet places. They can run up to about 1.5 meters in one second. So it's difficult for people to catch a cockroach. And cockroaches can stay underwater for 15 minutes. However, cockroaches are harmful for people. | |
There are 629 muscles (肌肉) in the human body. However, a caterpillar (毛毛虫) has about 40,000 muscles. Caterpillars eat a lot of food to be strong, and they eat quickly. When they become strong enough, they turn into butterflies. |
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