Martha Kolln explains cohesion in writing

Martha Kolln‘s  three methods of achieving paragraph cohesion:

  1. The subject of all or most sentences in the paragraph is the same.
  2. In each two-sentence pair, information included in the predicate of the 1st sentence becomes the subject of the 2nd sentence. In other words, something in the end of Sentence 1 becomes the beginning of Sentence 2.
  3. In paragraphs of description, a list of details follows the topic sentence. In such paragraphs, you don’t need to use explicit transitions, although you certainly may if you wish. SEE: SM’s cohesive paragraph

Note that in all three cases, “old” information comes before new information: sentences begin with something we ‘know’ (or have already read about, usually in the preceding sentence), then introduce something new in the predicate. This old-to-new principle is true with the paragraph of descriptive details because the reader knows the situation each detail refers to. The paragraph topic is old; each sentence in the list is new (see the example below).

EXAMPLES

1. Same subject – same subject

Despite the immense racial gulf separating them, Lincoln and Douglass had a lot in common. They were the two pre-eminent self-made men of their era. Lincoln was born dirt poor, had less than a year of formal schooling and became one of the nation’s greatest Presidents. Douglass spent the first 20 years of his life as a slave, had no formal schooling–in fact, his masters forbade him to read or write–and became one of the nation’s greatest writers and activists. Though nine years younger, Douglass overshadowed Lincoln as a public figure during the 15 years before the Civil War. He published two best-selling autobiographies before the age of 40, edited his own newspaper beginning in 1847 and was a brilliant orator–even better than Lincoln–at a time when public speaking was a major source of entertainment and power.

2. Predicate becomes Subject

Thunderstorms can be categorized as single cell or multicell.

Basically, a single-cell thunderstorm is the lone thunderstorm that forms on a hot humid day. The heat and humidity of the day is the only trigger for the storm. This type of storm forms in an environment with little difference in the wind speed and direction—or wind shear—between the surface and cloud level.
– Joe Murgo (Centre Daily Times)

3. List of details in paragraph of description

Our trip to Florida for spring break turned out to be a disaster. The hotel room we rented was miserable—shabby and stuffy and downright depressing. The food we could afford made our dining hall remembrances from campus seem positively gourmet. The daily transportation to the beach we had been promised showed up only once and even then was an hour late.

Source: Kolln, Martha J. Rhetorical Grammar: Grammatical Choices, Rhetorical Effects. 5th ed.  New York: Longman 2006. 69. Print.

AND SEE:
Sentence Cohesion – excerpt from Rhetorical Grammar
Coherent paragraphs & the bride on her wedding day

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