原题
There are four locations █ in the passage that indicate where the following sentence could be added.
Linguistic Structural Diversity
Linguistic typology investigates structural features across languages, revealing both universal patterns and language-specific variation. A central area of study is word order—the arrangement of subjects, verbs, and objects. English follows a subject-verb-object (SVO) pattern, while Japanese uses subject-object-verb (SOV). Most languages conform to a limited set of dominant word orders, which may reflect cognitive efficiency: Placing the subject first helps listeners quickly identify the sentence's main actor, aiding comprehension.
Beyond syntax, languages differ in morphological complexity—the degree to which inflection (such as noun or verb endings) marks grammatical relationships. Turkish uses extensive inflection to express subtle distinctions, whereas Mandarin Chinese relies more on word order and context. These contrasts suggest that languages balance morphology and syntax based on communicative needs. Highly inflected languages can afford flexible word order because grammatical roles are marked morphologically. In contrast, languages with minimal inflection often depend on fixed word order to maintain clarity.
█ This trade-off reflects deeper functional pressures. █ Languages evolve not randomly but in response to cognitive constraints and social factors, including contact with other languages and cultural shifts. █ Studying this evolution helps linguists understand not only how languages differ but why certain grammatical strategies emerge and persist across communities.█
Such changes can alter the communicative priorities of a speech community, affecting which features are emphasized or simplified over time.
解题思路
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