Questão bfcffb9e-e9
Prova:ULBRA 2011
Disciplina:Inglês
Assunto:Vocabulário | Vocabulary, Sinônimos | Synonyms, Interpretação de texto | Reading comprehension
The word “since” in the statement: “Since there is no burning process in a wind powered generator that produces
toxic gases, it is very safe to build one in residential areas” may be substituted, with the same meaning as the
original sentence, for:
The word “since” in the statement: “Since there is no burning process in a wind powered generator that produces
toxic gases, it is very safe to build one in residential areas” may be substituted, with the same meaning as the
original sentence, for:
As we all know, electricity is a fundamental need. On a daily basis, we consume electricity even without us
knowing it. Just a simple task such as listening to your music player consumes electricity. Today, most of our electric
generators and power plants are fed with fossil fuels such as petroleum and coal. However, due to the exponential
increase of power demand, fossil fuel supplies are slowly being depleted. Not only that, but also burning fossil fuels
has given off greenhouse gases and other unwanted byproducts. Because of this, the search for alternative energy
sources is now a necessity. One of the most promising alternative energy sources today is Wind Powered Generators.
So, what is a wind-powered generator? Basically it is the use of wind as a mechanical force needed to power an electric
generator. Utilizing wind as an energy source is not exactly a new idea. The ancient Persians were the first to use wind
to pump water, cut wood, and grind food and others by building windmills. Even today you can find windmills still
being used on some farms. It was the use of wind as an electric source that came into existence much later. The first
practical wind powered generators were built in 1970, but yet we rarely see them in widespread use today, why? Let’s
look at the advantages and disadvantages of the wind powered generator.
The main advantage of wind powered generators is that they have, ideally, zero gas emissions – unlike fossil-fueled
power generators. Because of the alarming effects of greenhouse gases and global warming, we want our power
generators to be as clean and as environmentally friendly as possible. Since there is no burning process in a wind
powered generator that produces toxic gases, it is very safe to build one in residential areas. Also, with proper
engineering and enough wind, these generators can provide a high rate of wattage that can go as high as the Megawatt
range. Another advantage is that it can be implemented using several small turbines connected together. This is a good
thing when there is not enough space for huge structures.
The major disadvantage of wind powered generators is that wind power varies greatly from one place to another
and from day to day and season to season. Sometimes wind may be strong enough to supply energy, but that strength
cannot be maintained due to changes in weather patterns. Needing strong, constant wind to most effectively power
wind generators is one reason they are often built in coastal areas. Another disadvantage is that the structure of most
practical wind powered generators is huge and bulky. Commonly, its size is proportional to the wind power it can
collect.
Research in wind power has now intensified because of its innate advantages over other power generators. With
this increase in interest in wind energy and alternative energy sources as a whole, our future will become brighter and
more and more remote areas will eventually enjoy the benefits of clean electric energy. In an electricity-dependent
world, power supplies must provide the required electricity for communities and businesses. Wind powered generators
might just be the solution for power shortages.
Disponível em: http://mysolarcellhome.org/articles/pros-and-cons-of-wind-powered-generators.
As we all know, electricity is a fundamental need. On a daily basis, we consume electricity even without us
knowing it. Just a simple task such as listening to your music player consumes electricity. Today, most of our electric
generators and power plants are fed with fossil fuels such as petroleum and coal. However, due to the exponential
increase of power demand, fossil fuel supplies are slowly being depleted. Not only that, but also burning fossil fuels
has given off greenhouse gases and other unwanted byproducts. Because of this, the search for alternative energy
sources is now a necessity. One of the most promising alternative energy sources today is Wind Powered Generators.
So, what is a wind-powered generator? Basically it is the use of wind as a mechanical force needed to power an electric
generator. Utilizing wind as an energy source is not exactly a new idea. The ancient Persians were the first to use wind
to pump water, cut wood, and grind food and others by building windmills. Even today you can find windmills still
being used on some farms. It was the use of wind as an electric source that came into existence much later. The first
practical wind powered generators were built in 1970, but yet we rarely see them in widespread use today, why? Let’s
look at the advantages and disadvantages of the wind powered generator.
The main advantage of wind powered generators is that they have, ideally, zero gas emissions – unlike fossil-fueled
power generators. Because of the alarming effects of greenhouse gases and global warming, we want our power
generators to be as clean and as environmentally friendly as possible. Since there is no burning process in a wind
powered generator that produces toxic gases, it is very safe to build one in residential areas. Also, with proper
engineering and enough wind, these generators can provide a high rate of wattage that can go as high as the Megawatt
range. Another advantage is that it can be implemented using several small turbines connected together. This is a good
thing when there is not enough space for huge structures.
The major disadvantage of wind powered generators is that wind power varies greatly from one place to another
and from day to day and season to season. Sometimes wind may be strong enough to supply energy, but that strength
cannot be maintained due to changes in weather patterns. Needing strong, constant wind to most effectively power
wind generators is one reason they are often built in coastal areas. Another disadvantage is that the structure of most
practical wind powered generators is huge and bulky. Commonly, its size is proportional to the wind power it can
collect.
Research in wind power has now intensified because of its innate advantages over other power generators. With
this increase in interest in wind energy and alternative energy sources as a whole, our future will become brighter and
more and more remote areas will eventually enjoy the benefits of clean electric energy. In an electricity-dependent
world, power supplies must provide the required electricity for communities and businesses. Wind powered generators
might just be the solution for power shortages.
Disponível em: http://mysolarcellhome.org/articles/pros-and-cons-of-wind-powered-generators.
A
As long.
B
Considering that.
C
Although.
D
Until.
E
Despite.
Gabarito comentado
F
Fábio de AguiarMonitor com apoio de IA
Gabarito: B
Fundamento decisivo: O critério decisivo é identificar que “since” no trecho “Since there is no burning process in a wind powered generator that produces toxic gases, it is very safe to build one in residential areas” tem valor causal/explicativo, isto é, introduz a razão pela qual é seguro construir o gerador em áreas residenciais. Por isso, a alternativa correta é a que preserva essa relação de causa, “Considering that”.
Tema central: valor causal de since
Análise das alternativas
A
Errada
Incorreta. “As long”/“as long as” expressa principalmente condição ou duração, não causa. O trecho original apresenta motivo, não condição, e a forma dada não substitui adequadamente a conjunção causal do período.
B
Certa
A alternativa B está correta porque “Considering that” mantém a função de “since” no período: introduzir a justificativa para a segurança do uso em áreas residenciais. No contexto, a ausência de processo de combustão que produza gases tóxicos é a მიზეზ/razão apresentada para a afirmação de que é seguro construir um gerador desse tipo em áreas residenciais.
C
Errada
Incorreta. “Although” introduz concessão ou contraste. No trecho, a relação entre as orações é causal/explicativa, não de oposição; portanto, a substituição altera o sentido.
D
Errada
Incorreta. “Until” é marcador temporal de limite. Como o período não expressa tempo, mas causa, o valor semântico é incompatível com o de “since” no contexto.
E
Errada
Incorreta. “Despite” expressa concessão/oposição, não causa, e ainda exige outra estrutura sintática. Assim, não mantém o sentido nem a construção da oração causal original.
Pegadinha da questão
A questão explora a polissemia de “since”: no trecho, ele não tem valor temporal (“desde”), mas causal (“já que/porque”).
Dica para questões semelhantes
- Antes de substituir um conector, identifique a relação lógica entre as orações: causa, tempo, condição ou concessão.
- Em casos de polissemia, use o contexto da frase para decidir o sentido real do termo.
- Não escolha a opção apenas por soar natural; verifique se ela preserva exatamente o encadeamento lógico original.
- Observe também se o conector candidato exige a mesma estrutura sintática da frase original.
