阅读下面短文, 按照句子结构的语法性和上下文连贯的要求, 在空格处填入适当的词或使用括号中词语的正确形式填空.
Snake dishes have become popular recent years. Snake meat in various flavors(风味) is often seen in restaurant advertisements. Eating snake seems to be now in vogue(盛行), and     you haven’t eaten snake yet, you are considered “ out of date”. But I wonder whether all the trends are worth     (follow).
Some people may defend themselves    saying that snake meat is nutritious. But these people don’t realize that many parasites (寄生虫),   (find) inside snakes, will do harm to our health.
According to a survey, about 1,000 tons of snakes are eaten every year in China and sometimes as many as 10 tons of snakes    (serve) on dinner tables in Shenzhen in a single day!
These figures warn us that if no     (act) is taken, the number of snakes will drop and that will make    increase in mice and worms population,     will result in a decrease (减产) of crops output. Who will see such tragedy happen?
So let’s start not to eat snakes any more because “ to protect the snake is to protect  .”