The underlined grammatical construction is a:
Text 4
Eclipse in Africa: 'Ring of Fire' eclipse wows stargazers
Stargazers in parts of Africa have been treated to a spectacular "ring of fire" in the sky as the
sun was almost - but not completely - eclipsed.
An annular eclipse happens when the moon is farther away from the Earth than during a
total eclipse.
The result is a bright circle of sunshine surrounding a dark, shadowy core.
The best views were seen in Tanzania, where the event lasted about three minutes.
The eclipse could also be viewed in parts of Gabon, Congo-Brazzaville, the Democratic
Republic of Congo, Madagascar, and the French Indian Ocean island of La Reunion.
The moon does not move in a perfect circle around the earth - instead, its orbit is slightly
elliptical. That means the distance of the moon varies between around 225,000-252,000 miles
(362,000-405,555 km).
When the moon is farther away from the earth, it appears smaller - and does not totally cover
the sun's disc during a total eclipse. The result is also known as a "ring of fire" eclipse.
The next eclipse is due to take place in February 2017, and can be seen from parts of South
America and Africa.
Avaiable at:http://www.bbc.com/news/world-africa. Accessed on 02/09/16.
Answer the question below, according to the Text 4.
Text 4
Eclipse in Africa: 'Ring of Fire' eclipse wows stargazers
Stargazers in parts of Africa have been treated to a spectacular "ring of fire" in the sky as the sun was almost - but not completely - eclipsed.
An annular eclipse happens when the moon is farther away from the Earth than during a total eclipse.
The result is a bright circle of sunshine surrounding a dark, shadowy core.
The best views were seen in Tanzania, where the event lasted about three minutes.
The eclipse could also be viewed in parts of Gabon, Congo-Brazzaville, the Democratic Republic of Congo, Madagascar, and the French Indian Ocean island of La Reunion.
The moon does not move in a perfect circle around the earth - instead, its orbit is slightly elliptical. That means the distance of the moon varies between around 225,000-252,000 miles (362,000-405,555 km).
When the moon is farther away from the earth, it appears smaller - and does not totally cover the sun's disc during a total eclipse. The result is also known as a "ring of fire" eclipse.
The next eclipse is due to take place in February 2017, and can be seen from parts of South America and Africa.
Avaiable at:http://www.bbc.com/news/world-africa. Accessed on 02/09/16.
Answer the question below, according to the Text 4.
Gabarito comentado
Gabarito comentado:
Tema central: A questão avalia seu conhecimento sobre voz passiva (passive voice) em inglês, tema muito frequente em provas de Vestibular e concursos.
Conceito-chave: A voz passiva é uma estrutura usada quando o objetivo é enfatizar quem recebe a ação, e não quem a executa. Sua formação básica consiste no verbo to be + particípio passado do verbo principal, podendo variar conforme o tempo verbal ou presença de modais.
Exemplo prático:
Voz ativa: The scientist observed the eclipse.
Voz passiva: The eclipse was observed (by the scientist).
Aplicação ao texto: As construções sublinhadas (were seen, could be viewed, can be seen) seguem perfeitamente o padrão da voz passiva:
- were seen: "to be" no passado + particípio "seen"
- could be viewed: modal "could" + "be" + particípio "viewed"
- can be seen: modal "can" + "be" + particípio "seen"
Essas formas realçam o acontecimento e não quem realizou a ação, como frequentemente ocorre em reportagens ou textos científicos.
Análise das alternativas:
- A) Present perfect tense: Seria "have/has + particípio passado". Não é o caso.
- B) Pure modals: Apesar de "can" e "could" serem modais, a estrutura destaca a voz passiva com uso de modal – não apenas o modal em si.
- C) Active voice: Na voz ativa, o sujeito pratica a ação. Ex: "Stargazers saw the eclipse." No texto, o foco é quem recebe a ação.
- D) Passive voice: Correta! As formas sublinhadas são exemplos típicos da voz passiva.
- E) Participle to be: Não existe tal construção na gramática inglesa.
Dica de prova: Fique atento à posição do verbo "to be" e ao particípio nas frases! Questões costumam disfarçar a estrutura com modais ou tempos verbais diferentes.
Portanto, a alternativa correta é D) passive voice.
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