阅读理解。 Snake meat is popular in restaurants. Some people think eating snakes is good for their health. But these people don't know that snakes feed on mice and worms, so there are many parasites (寄生虫) in snakes' bodies. They may be bad for our health. And we're sorry to see a butcher's (屠夫的) knife is killing more snakes. An English newspaper says, 'People eat about 1,000 tons of snakes every year in China. In Shenzhen, sometimes people serve 10 tons of snakes on dinner tables in a day.' If we continue to eat snakes, there will be a vicious circle (恶性循环). If people eat more snakes, snakes are becoming fewer and fewer. But mice are becoming more and more, there will be few crops. This will make more people hungry. Who wants to see such a bad thing happen? So people must stop eating snakes. To protect snakes is to protect ourselves. 根据短文内容，选择正确答案。 1. The writer thinks _____. A. eating snake meat is helpful to our health B. eating snake meat isn't bad for our health C. eating snake meat is expensive D. eating snake meat may be bad for our health 2. People sometimes serve about _____ tons of snakes in a day in Shenzhen. A. 10 B. 365 C. 3 D. 100 3. Why does the writer say 'To protect snakes is to protect ourselves'? A. Because snake meat is good for our health. B. Because we can use snake skin to make many beautiful shoes, bags and clothes. C. Because eating snake meat is very popular now. D. Because if snakes are becoming fewer and fewer, there will be few crops. 4. A butcher kills snakes to _____. A. get snake meat and make more money B. have pleasure C. eat meat and build him up D. protect people 5. This will make more people hungry. This means _____. A. Eating snakes B. vicious circle C. Mice becoming more and more . D. There will be few crops