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Difficulty: EasyTransitions: Contrast and Concession

For centuries, most astronomers adhered to the geocentric model, which posited that Earth sat stationary at the center of the universe while all other celestial bodies revolved around it. This view was widely accepted because it aligned with daily observations of the Sun rising and setting. _______, in 1543, Nicolaus Copernicus published a groundbreaking mathematical model showing that Earth and the other planets actually revolve around the Sun, challenging the long-held geocentric consensus.

Which choice completes the text with the most logical transition?

  1. A
    Therefore
  2. B
    In addition
  3. HoweverAnswer
  4. D
    For instance

Answer

However
The correct transition is 'However' because it signals a contrast between two opposing ideas: the long-held belief in the geocentric model (where Earth is stationary at the center of the universe) and the introduction of Copernicus's heliocentric model (where Earth and planets revolve around the Sun).

Step-by-Step Solution

1
Analyze the first two sentences to determine the initial idea.
The text explains that the geocentric model, which states that everything revolves around a stationary Earth, was widely accepted for centuries.
Understanding the context of the first part of the passage is necessary to find the relationship with the second part.
2
Analyze the sentence following the blank to determine how its idea relates to the first part.
The next sentence introduces Copernicus's model, which states that Earth and the other planets revolve around the Sun, directly challenging the geocentric model.
Comparing the two ideas reveals their logical relationship.
3
Identify the relationship and select the transition that expresses it.
The transition must indicate a contrast between the long-held geocentric belief and the newly proposed heliocentric model. 'However' is the only option that signals contrast.
Selecting the correct transition ensures the sentence flows logically.

Key Concept

Transitions: Contrast and Concession
Estimated Time:45s
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Topics

Transitions: Contrast and Concession

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