Question

Difficulty: EasyRhetorical Functions of Sentences and Paragraphs

Many people assume that desert plants survive solely by storing water in thick, fleshy leaves. However, the creosote bush employs a completely different survival mechanism: it produces toxic chemicals that it secretes into the surrounding soil. These toxins prevent other plants from growing nearby, effectively eliminating competition for the scarce water resources in the area. In this way, the creosote bush secures its own survival not by adapting its physical structure to retain water, but by actively dominating its immediate environment.

Based on the passage, what is the primary rhetorical function of the second sentence ("However, the creosote bush... surrounding soil")?

  1. It introduces an alternative survival method that contradicts a common belief.Answer
  2. B
    It states literally that the creosote bush releases toxic chemicals into the soil.
  3. C
    It explains how desert plants store water in their thick, fleshy leaves.
  4. D
    It proves that creosote bushes cannot survive in dry desert environments.

Answer

The option stating that the sentence introduces an alternative survival method that contradicts a common belief.
The correct option correctly identifies the sentence's function as introducing an alternative survival method. The paragraph opens with a common assumption (that desert plants survive by storing water in leaves), and the target sentence uses the word 'However' to present a contrasting mechanism (releasing toxins) employed by the creosote bush.

Step-by-Step Solution

1
Analyze the target sentence and its surrounding context.
The target sentence follows the statement that many assume desert plants survive solely by storing water in their leaves, and it introduces the creosote bush's chemical defense system.
Understanding the surrounding sentences helps identify the relationship between the target sentence and the rest of the paragraph.
2
Identify the transition word and its purpose.
The sentence begins with the transition word 'However', which signals a contrast or shift in direction.
Transition words provide direct clues to the structural or rhetorical function of a sentence.
3
Determine the rhetorical function of the contrast.
The sentence functions to contrast the common assumption about desert plant survival with a specific, different survival mechanism.
This matches the rhetorical definition of introducing an alternative that challenges a common belief.

Key Concept

Identifying the rhetorical function of a sentence by analyzing transitional cues and context relationships.
Estimated Time:1m 0s
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