Because he saw many empty bottles and bags of pesticides and fertilizers floating on the surface of the pond. Thinking of the massive use of fertilizers will affect the environment
2. Now the hometown spring is not like the previous scene, what is the cause of this?
Because of the uncontrolled abuse of pesticides and fertilizers by human beings.
3. Why is returning to your hometown like returning to your childhood?
Because going back to one's hometown is always as wonderful as childhood in the author's memory, and it also shows the author's love for his hometown
4. What scenes from the author's childhood are mainly recalled in the text? What are the thoughts and feelings?
The memories of the old trees, swallows, ponds (I'm not sure this is right), revealing the author's love and attachment to his childhood
5. Why did the tears stop falling down as I was writing?
One is because I remembered my best friend, and the other is because I thought of the environment is deteriorating day by day
I'm typing this myself, and I hope it's adopted, (*^__^*) hee hee ......