Questões de Concursos Inglês

A deep freeze this week in the Lone Star state, which relies on electricity to heat many homes, is causing power demand to skyrocket. At the same time, natural gas, coal, wind and nuclear facilities in Texas have been knocked offline by the unthinkably low temperatures.

“The extreme cold is causing the entire system to freeze up,” said Jason Bordoff, director of Columbia University’s Center on Global Energy Policy. “All sources of energy are underperforming in the extreme cold because they’re not designed to handle these unusual conditions.”

The ripple effects are being felt around the nation as Texas’ prolific oil-and-gas industry stumbles.

It’s striking that these power outages are happening in a state with abundant energy resources. Texas produces more electricity than any other US state — generating almost twice as much as Florida, the next-closest, according to federal statistics.

Wind power is also booming in Texas, which produced about 28% of all the US wind-powered electricity in 2019, the EIA said. But the problem is that not only is Texas an energy superpower, it tends to be an above-average temperature state. That means its infrastructure is ill-prepared for the cold spell currently wreaking havoc. And the consequences are being felt by millions.

Critics of renewable energy have pointed out that wind turbines have frozen or needed to be shut down due to the extreme weather.

Even though other places with colder weather (like Iowa and Denmark) rely on wind for even larger shares of power, experts said the turbines in Texas were not winterized for the unexpected freeze.

But this is not just about wind turbines going down. Natural gas and coal-fired power plants need water to stay online. Yet those water facilities froze in the cold temperatures and others lost access to the electricity they require to operate.

It’s too early to definitively say what went wrong in Texas and how to prevent similar outages. More information will need to be released by state authorities. Still, some experts say the criticism of wind power appears overdone already. “In terms of the blame game, the focus on wind is a red herring. It’s more of a political issue than what is causing the power problems on the grid,” said Dan Cohan, associate professor of environmental engineering at Rice University.

The energy crisis in Texas raises also questions about the nature of the state’s deregulated and decentralized electric grid. Unlike other states, Texas has made a conscious decision to isolate its grid from the rest of the country.

That means that when things are running smoothly, Texas can’t export excess power to neighboring states. And in the current crisis, it can’t import power either.

Internet: <www.cnn.com> (adapted).

As questões 75 a 78 referem–se ao texto a seguir.

In recent years there have been suggestions that, instead of raising sheep, Australia should be raising kangaroos, which (unlike sheep) are native Australian species that are adapted to Australian plants and climates. It is claimed that the soft paws of kangaroos are less damaging to soil than are the hard hooves of sheep. Kangaroo meat is lean, healthy, and (in my opinion) absolutely delicious. In addition to their meat, kangaroos yield valuable hides¹. All of those points are cited as arguments to support replacing sheep herding with kangaroo ranching.
However, that proposal faces real obstacles, both biological and cultural ones. Unlike sheep, kangaroos are not herd animals that will docilely obey one shepherd and a dog, or that can be rounded up and marched obediently up ramps into trucks for shipment to the slaughterhouse. Instead, kangaroo ranchers have to hire hunters to chase down and shoot their kangaroos one by one. Further problems with kangaroos are their mobility and ability to jump fences: if you invest in promoting growth of a kangaroo population on your property, and if your kangaroos perceive some inducement to move (such as rain falling somewhere els(E), your valuable crop of kangaroos may end up 30 miles away on somebody else?s property. Kangaroo meat is accepted in Germany and some is exported there, but the sale of kangaroo meat faces cultural obstacles elsewhere. For Australians, kangaroo meat has little appeal, and they continue to prefer their more traditional types of meat, especially lamb and beef. Many Australian animal welfare advocates oppose kangaroo harvesting, not taking into consideration the fact that living conditions and slaughter methods are much crueler for domestic sheep and cattle than for wild kangaroos. The U.S. explicitly forbids the importation of kangaroo meat because we find the beasts cute, and because a congressman?s wife heard that kangaroos are endangered. Some kangaroo species are indeed endangered, but ironically the species actually harvested for meat are abundant pest animals in Australia.

(DIAMOND, J. Collapse. New York: Penguin, 2005. Adaptado) ¹ hides = skins

Passwords to be replaced by Web Authentication

It looks iike login usernames and passwords are on __(I)__ way out. No longer will we have to worry about the security of __(II)__ login credentiais. They are set to be replaced by an infinitely more secure login system known as Web Authentication. Web Authentication has become an official standard for logging in at the main Internet standards body, the World Wide Web Consortium (WWWC). It is a system that will be universally used by web browsers and platforms for simpier and stronger authentication processes. It will allow website users to iog in securely to their online accounts using a digital device, biometrics (such as fingerprints and facial recognition) or USB security keys.

The WWWC spoke about the days of passwords being numbered. A spokesperson said: "lt’s common knowledge that passwords have outlived their efficacy. Not only are stoien, weak or default passwords behind 81 per cent of data breaches, they are a drain of time and resources." It added: "Now is the time for web Services and businesses to adopt Web Authentication to move beyond vulnerable passwords and help web users improve the security of their online experiences," Web Authentication means users are at less risk of having their passwords and credentiais stoien. This is because login authentication is achieved via physicai vices or biometrics from our body.

              <https://breakingnewsenglish.eom/1904/190401 -webauthentication.html>

A deep freeze this week in the Lone Star state, which relies on electricity to heat many homes, is causing power demand to skyrocket. At the same time, natural gas, coal, wind and nuclear facilities in Texas have been knocked offline by the unthinkably low temperatures.

“The extreme cold is causing the entire system to freeze up,” said Jason Bordoff, director of Columbia University’s Center on Global Energy Policy. “All sources of energy are underperforming in the extreme cold because they’re not designed to handle these unusual conditions.”

The ripple effects are being felt around the nation as Texas’ prolific oil-and-gas industry stumbles.

It’s striking that these power outages are happening in a state with abundant energy resources. Texas produces more electricity than any other US state — generating almost twice as much as Florida, the next-closest, according to federal statistics.

Wind power is also booming in Texas, which produced about 28% of all the US wind-powered electricity in 2019, the EIA said. But the problem is that not only is Texas an energy superpower, it tends to be an above-average temperature state. That means its infrastructure is ill-prepared for the cold spell currently wreaking havoc. And the consequences are being felt by millions.

Critics of renewable energy have pointed out that wind turbines have frozen or needed to be shut down due to the extreme weather.

Even though other places with colder weather (like Iowa and Denmark) rely on wind for even larger shares of power, experts said the turbines in Texas were not winterized for the unexpected freeze.

But this is not just about wind turbines going down. Natural gas and coal-fired power plants need water to stay online. Yet those water facilities froze in the cold temperatures and others lost access to the electricity they require to operate.

It’s too early to definitively say what went wrong in Texas and how to prevent similar outages. More information will need to be released by state authorities. Still, some experts say the criticism of wind power appears overdone already. “In terms of the blame game, the focus on wind is a red herring. It’s more of a political issue than what is causing the power problems on the grid,” said Dan Cohan, associate professor of environmental engineering at Rice University.

The energy crisis in Texas raises also questions about the nature of the state’s deregulated and decentralized electric grid. Unlike other states, Texas has made a conscious decision to isolate its grid from the rest of the country.

That means that when things are running smoothly, Texas can’t export excess power to neighboring states. And in the current crisis, it can’t import power either.

Internet: <www.cnn.com> (adapted).

Judge the following items, which refer to text tipology.

As questões 75 a 78 referem–se ao texto a seguir.

In recent years there have been suggestions that, instead of raising sheep, Australia should be raising kangaroos, which (unlike sheep) are native Australian species that are adapted to Australian plants and climates. It is claimed that the soft paws of kangaroos are less damaging to soil than are the hard hooves of sheep. Kangaroo meat is lean, healthy, and (in my opinion) absolutely delicious. In addition to their meat, kangaroos yield valuable hides¹. All of those points are cited as arguments to support replacing sheep herding with kangaroo ranching.
However, that proposal faces real obstacles, both biological and cultural ones. Unlike sheep, kangaroos are not herd animals that will docilely obey one shepherd and a dog, or that can be rounded up and marched obediently up ramps into trucks for shipment to the slaughterhouse. Instead, kangaroo ranchers have to hire hunters to chase down and shoot their kangaroos one by one. Further problems with kangaroos are their mobility and ability to jump fences: if you invest in promoting growth of a kangaroo population on your property, and if your kangaroos perceive some inducement to move (such as rain falling somewhere els(E), your valuable crop of kangaroos may end up 30 miles away on somebody else?s property. Kangaroo meat is accepted in Germany and some is exported there, but the sale of kangaroo meat faces cultural obstacles elsewhere. For Australians, kangaroo meat has little appeal, and they continue to prefer their more traditional types of meat, especially lamb and beef. Many Australian animal welfare advocates oppose kangaroo harvesting, not taking into consideration the fact that living conditions and slaughter methods are much crueler for domestic sheep and cattle than for wild kangaroos. The U.S. explicitly forbids the importation of kangaroo meat because we find the beasts cute, and because a congressman?s wife heard that kangaroos are endangered. Some kangaroo species are indeed endangered, but ironically the species actually harvested for meat are abundant pest animals in Australia.

(DIAMOND, J. Collapse. New York: Penguin, 2005. Adaptado) ¹ hides = skins