Here are two groups of sentences that look like paragraph. Read both of them carefully.

Are they both paragraphs?

Example (a):Science may be broadly defined as the development and systemization of positive knowledge about the physical universe. The history of science, then, is the description and explanation of the development of that knowledge. Science is generally viewed as a cumulative and progressive activity by its nature. Such views, however, have profound philosophical implications, and in fact the effort to define the nature of science is in itself part of the history of philosophy.

Example (b):Philosophers of the late renaissance were optimistic about humanity's ability to understand and control the natural world. The English philosopher Francis Bacon whose New Organon in 1620 also believed that there was a rigorous 'organ' or method for making scientific discoveries, but his history of method was quite different from that of Descartes. A science such as physic should be based on first principles comparable to the axiom of geometry, which were discovered and validated through the systematic analysis of intuitive ideas.

A paragraph is a group of sentences that are all about the same thing. That is, they all have the same topic.

Topic Sentence is a term often used in English classes to describe a statement found in a paragraph which states the topic and the main idea of the paragraph. The main idea of a paragraph is what all sentences all about. Main ideas are often found at the beginning of a paragraph and in the concluding sentences of a paragraph.

Because of his sickness, Andhy was not present.

When looking at the goldfish, they fell in love with it.

1. As soon as you can define the topic, ask yourself "What general point does the author want to make about this topic?" Once you can answer that question, you have more than likely found the main idea.

most main ideas are stated or suggested early on a reading; pay special attention to the first third of any passage, article, or chapter. That's where you are likely to get the best statement or clearest expression of the main idea.

Pay attention to any idea that is repeated in different ways. If an author returns to the same thought in several different sentences or paragraphs, that idea is the main or central thought under discussion.

The motorbike parked by the mango tree belongs to me

The engineer standing in front of the garage is my cousin.The motor generatings the ----- is ----

The man meeting yesterday is a mechanical engineer.