In the process of writing academic papers, we often use punctuation marks to organize sentences and paragraphs in order to achieve the purpose of clear expression and strict logic. However, some academic writers like to use too many symbols such as commas and semicolons when using punctuation marks, so as to realize more complicated and cumbersome sentence structures. This writing method will affect the matching degree of base paper and duplicate checking system to a certain extent.

First of all, too many punctuation marks will reduce the matching degree between the base paper and the duplicate checking system. Paper duplicate checking system usually regards punctuation as invalid characters and ignores their existence. If too many punctuation marks are used in the paper, the answers obtained by the original paper and the duplicate checking system will be different, thus reducing the duplicate checking rate of the paper.

Secondly, too many punctuation marks will reduce the readability of the paper. Academic papers should strive to accurately and concisely express research contents and innovative ideas. Too many punctuation marks will make the sentence structure complicated, and it is difficult for readers to understand the main idea and logical relationship of the sentence when reading. In this case, it will not only affect the quality and credibility of the paper, but also cause readers' confusion and dissatisfaction.

However, it is worth noting that although too many punctuation marks may affect the repetition rate and readability of the paper, punctuation marks should be used appropriately. Punctuation marks can not only help to divide sentences and paragraphs, but also express the author's mood and emotion. Therefore, when writing a paper, punctuation should be used reasonably according to the actual needs and language expression requirements to avoid excessive use.

To sum up, too many punctuation marks may affect the repetition rate and readability of the paper. In order to ensure the quality and credibility of the paper, we should pay attention to the use of punctuation marks in the writing process to avoid excessive use, so as to ensure the original flavor of the paper and the readability of readers. Finally, we should be more aware of the standardization and importance of punctuation, and improve the quality of the paper while using it correctly.