In English, each paragraph should be about only one main idea. The main idea is what the paragraph is about. All the sentences in the paragraph should be about the main idea. If a sentence is not about the main idea, the sentence is irrelevant.
( Source: Writers at Work Chapter 1)
The topic sentence tells us the main idea in the paragraph. All of the other sentences or “supporting sentences” should always be relevant to the main idea of the paragraph. Supporting sentences help the reader understand the main idea by giving more information about it. What would be the supporting sentences of the paragraph above after your editing?
EXTRA PRACTICE ON THE PARAGRAPH: http://www.cengage.com/cgi-wadsworth/course_products_wp.pl?fid=M20b&product_isbn_issn=9781424051007
Click on “Web Activities” and then select “Chapter 1”