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Question

Difficulty: MediumNoun and Adjective Suffixes

Complete the technical evaluation by applying the correct noun suffix to the root "stable" for the first blank and the correct adjective suffix to the root "resist" for the second blank. What derivative words properly complete the sentence?

Answer:To ensure long-term structural 【stability】 in high-stress environments, the airframe must be built from alloys that are 【resistant】 to continuous vibration.

Answer

The first blank requires the noun 'stability' (formed with the suffix '-ity') and the second blank requires the adjective 'resistant' (formed with the suffix '-ant').
In the initial clause, the adjective 'structural' modifies the direct object, necessitating the abstract noun 'stability' derived via the noun suffix '-ity'. In the relative clause, 'are' acts as a linking verb requiring the predicate adjective 'resistant' derived via the adjective suffix '-ant'.

Step-by-Step Solution

1
Analyze the syntactic role required for each blank in the sentence.
The phrase 'structural {{blank_1}}' functions as a direct object requiring a noun head. The predicate phrase 'alloys that are {{blank_2}} to...' follows the linking verb 'are' and modifies the subject 'alloys', requiring a predicate adjective.
Determining the grammatical function establishes whether a noun-forming or adjective-forming suffix is necessary.
2
Attach the appropriate noun suffix to the root word 'stable'.
Adding the Latin noun suffix '-ity' creates 'stability', meaning the condition or state of remaining firm and steadfast.
The suffix '-ity' transforms adjectives into abstract nouns indicating a state or condition.
3
Attach the appropriate adjective suffix to the verb root 'resist'.
Adding the suffix '-ant' creates 'resistant', meaning offering resistance or characterized by an ability to oppose.
The suffix '-ant' converts verbs into adjectives denoting a specific property or active quality.

Key Concept

Morphological derivation using the noun suffix '-ity' to indicate state of being and the adjective suffix '-ant' to indicate a characteristic property.
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Topics

Noun and Adjective Suffixes

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