Marque a opção em que a indicação sobre o uso dos sufixos no texto 2 está correta.
Texto 2
THE NEXT ERA OF DRONES WILL BE DEFINED BY ‘SWARMS’
[ …]
Drones are becoming smaller, cheaper to make, can zoom around on their own, and gather
in groups of hundreds, even thousands, to fly like a flock of birds.
They’re called swarms – get enough of them together, and they could save your life, or they
could be a deadly collaborative force on the battlefield.
[ …]
Plus there is no leader (1) or commander in a swarm; the swarm is a self-organising system
in which allows drones to fly together without colliding. And only one operator (2) is needed
to control the whole swarm.
Swarms are tough. One missile can bring down an aircraft, but a swarm can lose dozens of
members and keep going. Air defences with a limited (3) supply (4) of missiles can be
overwhelmed by enough opponents.
But drones will soon be swarming in many other situations too, from rock concerts to
barnyards. In fact, you probably already have seen swarms of drones in everyday life.
Chinese company eHang claimed the record for the biggest swarm, in a spectacular New
Year show in which 1,000 drones formed a map of China and the Chinese character for
'blessings' (5).
Drone swarms may even have a place on the farm. They can spot plant disease and help
manage water use, or spray pesticides and herbicides only in the exact spot needed, all
working cooperatively to cover the area and fill in gaps.
So, what does the future hold for swarming (6) drones? Swarming drone technology is still
very much in their infancy. But it’s evolving fast. In fact, they could one day live alongside us.
Fonte: adapted from: <http://www.bbc.com/future/story/20170425-were-entering-the-next-era-of-drones>.
Acesso em: 02 maio 2017.
Texto 2
THE NEXT ERA OF DRONES WILL BE DEFINED BY ‘SWARMS’
[ …]
Drones are becoming smaller, cheaper to make, can zoom around on their own, and gather in groups of hundreds, even thousands, to fly like a flock of birds. They’re called swarms – get enough of them together, and they could save your life, or they could be a deadly collaborative force on the battlefield.
[ …]
Plus there is no leader (1) or commander in a swarm; the swarm is a self-organising system in which allows drones to fly together without colliding. And only one operator (2) is needed to control the whole swarm.
Swarms are tough. One missile can bring down an aircraft, but a swarm can lose dozens of members and keep going. Air defences with a limited (3) supply (4) of missiles can be overwhelmed by enough opponents.
But drones will soon be swarming in many other situations too, from rock concerts to barnyards. In fact, you probably already have seen swarms of drones in everyday life. Chinese company eHang claimed the record for the biggest swarm, in a spectacular New Year show in which 1,000 drones formed a map of China and the Chinese character for 'blessings' (5).
Drone swarms may even have a place on the farm. They can spot plant disease and help manage water use, or spray pesticides and herbicides only in the exact spot needed, all working cooperatively to cover the area and fill in gaps.
So, what does the future hold for swarming (6) drones? Swarming drone technology is still very much in their infancy. But it’s evolving fast. In fact, they could one day live alongside us.
Fonte: adapted from: <http://www.bbc.com/future/story/20170425-were-entering-the-next-era-of-drones>
Gabarito comentado
Tema central: A questão aborda formação de palavras em inglês com foco em sufixos (suffixes) — elementos adicionados ao final das palavras para modificar seu significado ou função. Entender como funcionam é essencial para provas de vestibular, pois ajuda na interpretação de textos e análise gramatical.
Análise da alternativa correta — Letra A:
Na alternativa A, os sufixos –er (em leader) e –or (em operator) aparecem formando substantivos que indicam o agente (quem executa a ação do verbo). Exemplos clássicos incluem teacher (de “teach”) e actor (de “act”). Em manuais como o de Michael Swan (“Practical English Usage”), confirma-se que esses sufixos servem para identificar o autor da ação. Portanto, a alternativa A está correta.
Por que as demais alternativas estão incorretas?
B) O sufixo –ed em limited não indica passado aqui, mas sim forma um adjetivo (algo que tem limites). “Limited supply”: “fornecimento limitado”. Cuidado com a armadilha do uso flexional; nem sempre –ed é passado!
C) Supply não tem o sufixo –ly. O advérbio corresponde a palavras como slowly ou quickly (rapidamente). “Supply” é substantivo ou verbo.
D) Blessings contém –ing formando um substantivo (“bênçãos”), não um adjetivo. O plural –s indica mais de uma bênção.
E) Apesar de “swarming” com –ing indicar ação contínua, a alternativa A traz a explicação mais precisa, pois pede-se a identificação correta do uso dos sufixos, e –er / –or identificando o agente é mais direta.
Dica para provas: Fique atento à função real do sufixo no contexto, e desconfie de afirmações automáticas (“–ed é sempre passado”, por exemplo). Observe como o sufixo altera não só o sentido, mas também a classe gramatical da palavra!
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