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Leia o texto para responder às questões de números 52 e 53.
Culture is really an integral part of the interaction between language and thought. Cultural patterns of cognition and customs are sometimes explicitly coded in language. Conversational discourse styles, for example, may be a factor of culture. Consider the “directness” of discourse of some cultures: in the United States, for example, casual conversation is said to be less frank and more concerned about face-saving than conversation in Greece, and therefore a Greek conversation may be more confrontational than a conversation in the United States, In Japanese, the relationsltip of one’s interlocutor is almost always expressed explicitly, either verbally and/or non-verbally. Perhaps those forms shape one’s perception of others in relation to self.
(Douglas Brown. Principles of language learning and teaching. 5th ed. Longman, 2000. P. 211. Adaptado)
Note the use of the passive in “Casual conversation is said to be less frank than conversation in Greece”. Another correct use of an impersonal passive is found in alternative
Resolução comentada
Voz passiva impessoal com verbo de relato (reporting verb).
'Is said to be' é passiva impessoal formada com verbo de relato + infinitivo. Em 'has been reported to be very fearful', ocorre a mesma estrutura: o sujeito gramatical é um terceiro e o relato é impessoal.
Análise das alternativas
B) 'Are being classified' é passiva comum, sem verbo de relato + infinitivo. C) 'Could have been pronounced' é passiva modal comum. D) 'Have been banned... by the new governor' é passiva com agente. E) 'Have their perceptions increased' é estrutura causativa (have + objeto + particípio).
Referência: Gramática da língua inglesa – impersonal passive
Resolução comentada do VaiConcursos.