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Question

Difficulty: MediumContext Clues for Synonyms

What single-word synonym for the bolded term accurately completes the sentence according to the surrounding context clues?

Answer:The laboratory supervisor emphasized that strict adherence to safety protocols is imperative; in such a hazardous testing environment, double-checking all emergency valves is absolutely 【essential】 for preventing accidents.

Answer

essential (or an equivalent direct synonym such as crucial, vital, necessary, mandatory, or required)
In this context, 'imperative' means indispensable or obligatory due to the dangers of the workplace. Synonyms such as 'essential', 'crucial', 'vital', 'necessary', or 'mandatory' correctly complete the thought that safety checks are required to avoid accidents.

Step-by-Step Solution

1
Analyze the surrounding context and sentence structure for clues to the meaning of 'imperative'.
The sentence links the supervisor's instruction with the condition of working in a 'hazardous testing environment' where following protocols avoids accidents. The semicolon establishes a cause-and-effect restatement between the two clauses.
Context clues indicate that the action described is obligatory and indispensable rather than optional.
2
Identify the precise meaning of 'imperative' and substitute an equivalent single-word synonym into the blank.
'Imperative' means of vital importance or mandatory. Inserting 'essential', 'vital', 'crucial', or 'necessary' maintains both grammatical structure and semantic intent.
The blank requires an adjective expressing necessity to modify the noun phrase that follows.

Key Concept

Context Clues for Synonyms
Estimated Time:45s
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Context Clues for Synonyms

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