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 mice and bad worms are often in snakes' bodies. And we're sorry to see that some people are killing more snakes. The English newspaper Shanghai Star says,'People in Shanghai eat about l0 tons of snakes every year. In Shenzhen, sometimes people serve lo tons of snakes on dinner tables in a day.' If we still do like this,there will be a vicious (恶性的) circle: If people eat more snakes, the snakes will disappear, but the mice will be more, there will be fewer crops. This will make more people hungry (挨饿). Who wants to see such a bad thing happen? So let's not eat snakes any more. To protect snakes is to protect ourselves. 给下列句子填上适当的单词。 1. Snakes eat lots of  _________ 2. People in Shanghai eat _________ snakes than those in Shenzhen. 回答下列问题。 3. Are snakes good or bad for humans? ________________________________________________ 4. What will happen if there are no snakes? ________________________________________________ 将文中画线的句子译成汉语。 5.________________________________________________