阅读下面材料，在空白处填入适当的内容或括号内单词的正确形式。
Snake dishes have become popular in_____ (recently) years. Snake meat in ______(vary ) flavors (风味) can ________ (see) in restaurant ads very often. Eating  snake seems to be now in vogue(盛行), and if you haven’t eaten a snake yet, you are considered “out of date”. But I wonder __________ all the trends are worth ______ (follow).
Some people may defend themselves by saying that snake meat is nutritious . But these people don’t realize that many parasites(寄生虫)，_______ do harm to our health, are found inside snakes.
According ______ a survey, about 1000 tons of snakes are eaten every year in China and sometimes as many as 10 tons of snakes are served on dinner tables in Shenzhen in a single day!
These figures warns us that if no action is taken, _____ number of snakes will drop and make an increase in ____(mouse) and worms population, which will result in a decrease(减产) of crop 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 _________.”