Analysis of test questions: If you want to accurately write appropriate sentences in the underlined places, you must do it according to the requirements of the stem, that is, according to the context. The first point is that he compared poetry to a fruit tree and put forward the famous thesis of "root feeling, Miao character, Hua Sheng and true meaning". The content before the horizontal line is "emotion is the content of poetry", and the social effect of poetry is "meaning" after the horizontal line. It can be seen that the object on the horizontal line should be harmony, and then the conclusion that "harmony is the form of poetry" is drawn according to "emotion is the content of poetry", and the answer is there. The second place should also do this analysis to solve the problem.