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Question

Difficulty: HardSentence-Level Transitions

When Mount Vesuvius erupted in 79 CE, the intense heat carbonized hundreds of papyrus scrolls in a villa at Herculaneum, leaving them fragile and fused together. For centuries, researchers who tried to physically unroll these charred documents ended up destroying them. Indeed, modern scientists have turned to non-invasive technologies like X-ray phase-contrast tomography to read the text without disturbing the physical structure. This technique can detect the minute difference in thickness between the carbonized ink and the carbonized papyrus, allowing scholars to virtually unroll and read the scrolls.

Which of the following options best replaces the underlined portion to establish a logical transition between the two sentences?

  1. A
    NO CHANGE
  2. destroying them; instead, modernAnswer
  3. C
    destroying them, instead, modern
  4. D
    destroying them. Furthermore, modern

Answer

destroying them; instead, modern
The sentence describes two contrasting methods: the destructive physical unrolling used in the past versus the non-destructive X-ray scanning used today. The transition word 'instead' correctly establishes this contrast. Furthermore, since both clauses are independent, they must be separated by a semicolon when joined by a conjunctive adverb like 'instead'. Therefore, the option with the semicolon and 'instead' is both grammatically and logically correct.

Step-by-Step Solution

1
Analyze the logical relationship between the two clauses separated by the transition.
The first clause describes how past physical attempts to unroll the scrolls resulted in their destruction. The second clause describes how modern scientists use non-invasive virtual scanning. These two ideas represent a contrast or a transition from a failed physical approach to a successful modern alternative.
Identifying the logical relationship helps determine the correct transition word category (contrast, addition, illustration, or cause-effect).
2
Evaluate the transition words in the options based on the identified relationship.
'Indeed' and 'Furthermore' are incorrect because they indicate emphasis and addition, respectively, rather than the necessary contrast. 'Instead' is the correct transition because it introduces a contrasting alternative to the destructive physical methods.
Selecting the correct logical connector ensures the coherence of the passage.
3
Verify the punctuation separating the two independent clauses.
Both parts are independent clauses, so they must be separated by a period or a semicolon when using a conjunctive adverb like 'instead'. Using a comma before 'instead' creates a comma splice. The option with a semicolon and 'instead' is grammatically and logically correct.
Ensuring proper punctuation prevents run-on sentences and comma splices.

Key Concept

Selecting logical sentence transitions and joining independent clauses correctly with proper punctuation.
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Topics

Sentence-Level Transitions

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