Function of Intermediate Sentence or Paragraph-Transition (Connection, Cohesion, Connection)
Explain the function of the opening sentence-explain the characteristics and explain the object.
The function of a paragraph or sentence in the middle —— Explain or transform spatial order from another angle. )
The function of the beginning of an argumentative essay-the central argument and theme.
The function of the middle paragraph-the transformation of factual argument and rational argument, and the transformation of sub-argument.
Note: The above are general rules. In fact, there is no clear method in this paper. You should study the original text carefully before answering the question.