1, beginning: (1) opening point, laying the emotional tone of the full text (2) the general introduction of the full text (3) causing the following, paving the way for the following; (4) setting suspense to arouse readers' interest or thinking; (5) If it is a scene description, answer it in combination with relevant functions.

2. The function of the ending: A summarizes the full text in structure (1), (2) takes care of the beginning (or echoes from beginning to end) to make the structure of the article complete and rigorous, (3) takes care of the title content B (1) to point out the center (the topic at the end of the article) and deepen the sublimation center, (2) makes people think, and (3) makes people think.

The function of the title: it is the trigger point of the author's thoughts and feelings, summarizes the main contents of the article, acts as a clue to the article, reveals the center of the article, is novel and attracts readers.

Explanatory genre

First, set suspense to attract readers' interest in reading; 2, increase interest and vividness, enhance literary color and attract readers; 3. Introduce the description object (or description content) 4. Introduce and describe the characteristics of the object.

Argumentative writing

Beginning: a. Leading to the central argument; B. act as an argument; C. Lead the topic; D. attract readers' interest in reading and enhance the interest of the article.

That's all I know