The explanation is as follows:
Keyword sentences play a finishing touch on the structure of the article and represent the central idea of ??the article. Keyword sentences mainly include:
1. Sentences that highlight the topic
2. Sentences that express emotion, discussion, and description
3. Sentences that summarize the entire text
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4. Quoted sentences
5. Sentences that connect, connect, and connect
The criteria for a wonderful paragraph are:
First of all, a paragraph must have a The center is the theme idea, which is expressed by the topic sentence, especially the title. The entire paragraph must stick to the theme. This is the unity of the paragraph.
Secondly, a paragraph must have several promotional sentences to fully develop the theme and give readers a complete feeling. This is completeness.
Furthermore, a paragraph is not a mess, but an organic combination. The order of sentences must be logical, and the transition from one sentence to another must be smooth. This is coherence.