Most paragraphs have a "topic sentence”which expresses the central idea.The remaining.sentences in the same paragraph expand or suppord that idea.It has been that between 60-90% of all_说明_，paragraphs in English have the topic sentences placed at the beginning of the paragraphs.Always pay special attention to the first sentence of a paragraph it is most likely to give you the man idea.
參考答案:Most paragraphs have a "topic sentence”which expresses the central idea.The remaining.sentences in the same paragraph expand or suppord that idea.It has been that between 60-90% of all_ explanations_，paragraphs in English have the topic sentences placed at the beginning of the paragraphs.Always pay special attention to the first sentence of a paragraph it is most likely to give you the man idea.
多数文章都有一个用来表达中心思想的“主题句”。该段落其他的句子都是该中心句的扩展和支持论据。60%到90%的英语说明文章的结构都是如此，都是把中心句放在段落的开头。当你阅读时，要特别留心每个段落的第一句，因为它很可能会告诉你整个段落的大意。
