Complete the statements bellow. ■ The project is so expensi...
Water, Water Everywhere
Approximately 70 percent of our planet is covered in water. In total, that’s approximately 1,260 million trillion liters, which sounds like an enormous amount, but less than one percent of it can easily be used as drinking water. A major amount, 97 percent, is salt water, and two percent is glacier ice. Scientists and politicians are becoming increasingly worried about the amount of water, and predict that there will be wars in the future to control our water supplies.
The world’s population is growing rapidly, and the need for water in industry and agriculture is enormous. Climate change also adds to the problem: droughts restrict access to water even further, and flooding can pollute supplies of drinking water. Furthermore, these threats to our environment are probably only going to get worse. Already 1.2 billion people live in areas with limited access to water, and the UN predicts that, by 2025, this figure will rise to 1.8 billion, or two thirds of the world’s population.
But the problem isn’t only how much water we need, it’s also how we clean and store it. In the US, for example, water facilities are old and inefficient, and it’s hugely expensive to improve them. In China, the government knows it will need to spend $850 billion to improve its water infrastructure. Currently, India can only clean about 30 percent of its wastewater, meaning that people risk disease when they drink from polluted sources. Some countries filter sea water to make their drinking water. But this process is also very expensive, so it isn’t viable in many countries.
We can’t give up on this problem, however, because without water we can’t survive. Thankfully, there are already some excellent water purification products operating on a small scale, which are already helping people whose access to water is limited.
The “Slingshot” is a new water purifier, about the size of a small refrigerator, and is the creation of American inventor Dean Kamen. The purifier works by heating the water, which kills anything harmful. It can purify even the dirtiest water, requires minimal electricity, and can clean up to 1,000 liters a day. The “Slingshot” is already helping communities in several countries, including South Africa and Mexico. It will soon provide a cheap and safe supply of water in many other places where poverty prevents access to clean water.
Dean Kamen believes that every human should
have the right to clean water every day. Hopefully,
with more devices like the “Slingshot”, there will soon
be more water to go around.
Complete the statements bellow.
■ The project is so expensive it isn’t .................... .
■ Millions of people live in ........................, without enough food to eat.
■ The factory’s systems are so .................. ; it doesn’t manufacture enough products.
■ Tom wants to .................... how much sugar I eat. So I can’t eat chocolate every day!
■ Sufferers of the ................. have difficulty walking.
Choose the alternative that completes the sentences in the correct order.
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A alternativa correta é a D. Vamos entender o porquê.
Para resolver essa questão, é necessário compreender o contexto fornecido pelo texto sobre a situação dos recursos hídricos no mundo. O texto aborda problemas como a escassez de água potável, a infraestrutura inadequada para tratamento de água, e soluções inovadoras como o purificador "Slingshot". Com base nisso, podemos analisar cada lacuna e identificar a alternativa que melhor completa as frases.
Analisando a alternativa correta:
D - viable • poverty • inefficient • restrict • disease
■ The project is so expensive it isn’t viable.
A palavra "viable" (viável) se encaixa no contexto de projetos caros que não são considerados viáveis financeiramente.
■ Millions of people live in poverty, without enough food to eat.
A palavra "poverty" (pobreza) é adequada aqui, pois aborda a falta de recursos básicos, incluindo comida suficiente.
■ The factory’s systems are so inefficient; it doesn’t manufacture enough products.
"Inefficient" (ineficiente) descreve sistemas que não produzem a quantidade necessária de produtos.
■ Tom wants to restrict how much sugar I eat. So I can’t eat chocolate every day!
"Restrict" (restringir) é a palavra correta para indicar a limitação da quantidade de açúcar consumida.
■ Sufferers of the disease have difficulty walking.
A palavra "disease" (doença) é a correta, referindo-se a pessoas que têm dificuldades de locomoção devido a enfermidades.
Analisando as alternativas incorretas:
A - inefficient • poverty • viable • disease • restrict
■ "Viable" não faz sentido no contexto da terceira frase. ■ "Restrict" não é adequado no contexto da última frase.
B - inefficient • disease • viable • restrict • poverty
■ "Disease" não é correto no contexto da segunda frase. ■ "Poverty" não se encaixa na última frase.
C - restrict • poverty • inefficient • viable • disease
■ "Restrict" não é apropriado para a primeira frase.
E - poverty • restrict • disease • restrict • inefficient
■ "Poverty" não faz sentido na primeira frase. ■ "Restrict" repetido na mesma alternativa não é coerente.
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d-
if something isn't viable, it means that it's not a rather profitable business undertaking
The project is so expensive it isn’t viable
■ Millions of people live in poverty, without enough food to eat.
■ The factory’s systems are so inefficient ; it doesn’t manufacture enough products.
■ Tom wants to restrict how much sugar I eat. So I can’t eat chocolate every day!
■ Sufferers of the disease have difficulty walking.
Questão fácil, somente pela primeira frase já era possível acertar. O projeto é muito caro, ele não é viável.
Marco!
Fácil para quem já está algum tempo em contato com o idioma...
Cuidado com comentários desnecessários.
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