Writing a Unified Paragraph
As mentioned earlier, a unified paragraph has only a main idea, and every explanatory sentence in paragraph helps to illustrate that idea. If there are sentences in a paragraph that do not develop the main idea, reader may be confused.
Writing a unified paragraph requires discipline because in writing as in conversation, we often change the subject Remember when Uncle Joe started to tell about his fishing trip to Alabama, but the story you heard was more about the his falling off the back gate? Or perhaps you wrote a paragraph intending to describe Disney World’s Fantasyland, but instead you wrote about the cute person serving hamburgers in Ad ventureland. Your paragraph was not unified, and your reader was probably left confused.
The paragraph on the next page, from the book Beyond Tomorrow by D. S. Halacy, Jr., is about replacing human eyes lost because of disease or injury. The topic sentence, which enclosed in brackets, is not part of the original paragraph.
Writing a Coherent Paragraph
Paragraphs need not only to be well-developed and unified, but also to be coherent. In a coherent paragraph, all sentences show their relationship to one another.
One way to achieve coherence is to arrange the sentences in a logical order. Logical order means arranging sentences reason. For example, if you write about events as they are it is logical to use chronological, or time, order. If you describe an object or a place, it is logical to arrange details spatial the way they appear in space. If you write using examples, or reasons, it is logical to arrange them according to order of importance.
Paragraphs without coherence are difficult to read following sentences from the book DNA: The Ladder of Edward Frankel, tell about a researcher named Fred Gr who found a clue to the mystery of heredity when he performing an experiment with bacteria that cause pneurc At the time of this experiment, people believed that only c germs could cause pneumonia. As you read the sentence to understand the experiment. (It cannot be done unles rearrange the sentence order.)
• Back in 1928, Fred Griffith, an English bacteriologis experimenting with pneumonia organisms.
• What was that something?
• Not one of these animals became sick.
• From what was then known about these microbe mice should have remained alive and healthy.
• Apparently the dead germs were really dead.