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College Composition / Unit 2   CMP 0045 review, 2 to 3 minutes

One Sentence, Four Structures

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The idea

The same information can be arranged in each of the four sentence structures, and each arrangement tells the reader something different about how the ideas relate.

In practice

This worked example is constructed for this course. Start with three facts: the library extended its hours; students had asked for more study space; exam week was approaching. First, as simple sentences: "The library extended its hours. Students had asked for more study space. Exam week was approaching." Every fact gets equal weight, and the passage reads as choppy. Second, as a compound sentence: "Students had asked for more study space, and the library extended its hours." The facts are joined but presented as equal, so the cause is only implied. Third, as a complex sentence: "Because students had asked for more study space, the library extended its hours." Now the request is marked as the reason, and the main clause carries the decision. Fourth, as a compound-complex sentence: "Because students had asked for more study space, the library extended its hours, and the change took effect before exam week." Now all three facts fit, with the cause subordinated and two results treated as equal. Which version is best depends on what the paragraph needs to emphasize: the decision, the reason or the timing.

Where people slip

None of these structures is correct in itself. A revision choice is right when its structure matches the relationship the writer means; a compound sentence that hides a cause, or a complex sentence that subordinates the main point, is a weaker version even when it is grammatical. On the exam, read the sentences around the one being revised, because the paragraph tells you which idea the writer wants to stress, and that decides which structure fits.

Your place on the trail

Every lesson rests on earlier ones and opens later ones. Tap any to jump.

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