1. Paper title: overall perception, grasping the topic sentence well, and not deviating from the content. The topic sentence of the article is the key to understanding the meaning of the topic.

2. Thesis topic: opinions and ideas; More abstract, sometimes it can be understood as a kind of spirit to reflect.

Second, the role is different.

1. Thesis title: Attract readers' interest in reading and hint at the main idea of the article.

2. Thesis title: The author's basic views expressed through the whole content of the article or work when explaining problems, expressing opinions or reflecting social life phenomena are the purpose of the article's narration and discussion.

Third, the meaning of existence.

1. Paper title: Belonging to a person or an object, or an action with rich connotations, etc. , is probably the clue of this article.

2. Theme of the paper: The commander-in-chief of the article, whether it is the choice of materials, the arrangement of structure or the use of words, an article should be considered according to the needs of the theme. Ancient literary critics often compared the theme of the article to "handsome" in the army.