Snail

I have seen a artical what about snail.

"Several days of rain in a row, whether becomes nice and cool. Yesterday, after we had dinner, we went downstairs to the flower bed edges, see a lot of snails,and we started grasping the snail. I want to grasped one by my self...
To the flower beds,I squat body, turn pieces of leafage over,and look for a while, but could not found a snail. We also found it in many leaf, finally I found a snail. I reached my hand out to grabed it.My hand just lay a finger on it, its head pinch in shell quickly,that scare me. snail can bite people??
Recommend from book,said: snails are pests. these snails eating leaves,more hateful Yeah! TV also reported that: a lot of snails chew many vegetables, snails eat leaves of green plants, so many vegetables died.

Think about those, I boost my courage to catched it, throw it on the floor, and made its life ended···"

This artical's style are fresh and fluency,but reveal some thinking by worth of think.
That girl  "throw it on the floor, and made its life ended",I have a bit hurt on my heart.Why the girl hate snail?Because the book says that snails are pest.So,is snail pest or not actually?
If we check information,we will find that, snails are pests  for purposes of crops, but it for purposes of humen,snails are beneficial insect.

Snail's body is a treasure,can be used to do drugs, treat hypertension, heart disease, arteriosclerosis and so on. Eat snails, you can clearing heat, detumescence, detoxicate, hairdressing, lengthen one's life, improve people's eyesight, appetite, sleep and so on. Longevity areas in the world like British and French, there must have snails on the dishes, and be listed as first famous food in the world. On the side, snail has another ability,it helps farmers to find situation of land pollution. French researchers found that the metal contaminants in the snail digestive gland contents to reflect the degree of soil pollution is an important indicator.


Information from this search process, we teach anyone that is not specific knowledge, is not let you to remember all of snails' benefit, but teach you a way for thinking.
First:, look at the issue must be comprehensive and should learn to think from different angles.

Secound,  learn to make question, question is a core element of critical thinking.





I'm Li peijuan, one of my group mambers. My ID number is 1071119953