16Hit1600
Expression of IdeasHardUsing notes to accomplish a rhetorical goal

Expression of Ideas practice question

While researching a topic, a student has taken the following notes: - A cheetah's top speed is about 100 kilometres per hour. - An elite human sprinter reaches about 44 kilometres per hour. - A cheetah can hold its top speed for roughly 30 seconds. - A sprinter holds top speed for only a few seconds.

The student wants to emphasise how much faster a cheetah is than a human sprinter. Which choice most effectively uses relevant information from the notes to accomplish this goal?

  1. A. A cheetah's top speed of about 100 kilometres per hour is more than double an elite human sprinter's roughly 44 kilometres per hour.Correct
  2. B. A cheetah can hold its top speed for roughly 30 seconds.
  3. C. An elite human sprinter reaches about 44 kilometres per hour.
  4. D. Both cheetahs and sprinters can hold their top speed only briefly.

Answer: A. A cheetah's top speed of about 100 kilometres per hour is more than double an elite human sprinter's roughly 44 kilometres per hour.

A size-of-difference goal needs both speeds and the comparison between them. Choice A supplies both and states the ratio.

Why the other answers are wrong

B. A cheetah can hold its top speed for roughly 30 seconds.
Duration isn't speed, and only the cheetah is mentioned.
C. An elite human sprinter reaches about 44 kilometres per hour.
Only the sprinter's speed is given; there's nothing to compare it with.
D. Both cheetahs and sprinters can hold their top speed only briefly.
This stresses a SIMILARITY, the opposite of the goal.

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