7. Lao Li picked up the little fish that was still in its infancy, and later raised her by herself. Finally, when Xiaoyu went to build a house in other places, Lao Li died of illness, leaving only the endless memories of Xiaoyu beside the boat.

8. Lao Li is alone, raising small fish that has nothing to do with him; When Xiaoyu asked Lao Li to move out, Lao Li smiled and encouraged her to go out, although she was reluctant. From these details, we can see that Lao Li has devoted his life to Xiaoyu, and he is a person who can be broad-minded and selfless. In addition, from the place where he doesn't want to leave his job, we can see his persistence in his spiritual home (2 points can be combined with the content of the article, 2 points can write his personality characteristics).

9.( 1) The word "fly" vividly describes the cheerful mood brought by the child's crying to the quiet river and Lao Li with figurative rhetoric.

(2) The word "falling" originally refers to soft objects falling from the air with the wind. It is used here to describe Lao Li's thin and sickly body, and it also implies the loneliness and liveliness of Lao Li after Xiaoyu left.

10. "Ship" is the carrier of Lao Li's caring for small fish. Lao Li has lived on a boat all his life and raised his own boat. The boat finally became the symbol of Lao Li (2 points). Touch the Boat is not only the sustenance of Xiaoyu to Lao Li's thoughts, but also the image of Lao Li in readers' minds (2 points).