To summarize the topic of an article, one usually needed to start from the following aspects: 1 Title: The title of the essay usually provides clues to the topic of the essay. If the title of the article is related to the topic, the topic of the article can be inferred. The main topic of the article is usually the most representative sentence in the article. You can infer the theme of the article by analyzing the context and meaning of the sentence. 3. The topic sentence of a paragraph: The topic sentence of a paragraph is usually the most prominent sentence in the paragraph. It express the central idea of the paragraph. The main idea of the article can be inferred by analyzing the context and meaning of the sentence. 4. Contexts: The context of the article can provide more information and clues to help infer the topic of the article. For example, if the article uses a metaphor or metaphor, these clues can help us better understand the main idea of the article. To sum up, the topic of the article needs to be analyzed from many aspects, such as topic, topic sentence, paragraph topic sentence and context clues, to determine the theme of the article.