Questões para Concursos

An increasing body of evidence suggests that the time we spend on our smartphones is interfering with our sleep, self-esteem, relationships, memory, attention spans, creativity, productivity and problem-solving and decision-making skills. But there is another reason for us to rethink our relationships with our devices. By chronically raising levels of cortisol, the body’s main stress hormone, our phones may be threatening our health and shortening our lives. If they happened only occasionally, phone-induced cortisol spikes might not matter. But the average American spends four hours a day staring at their smartphone and keeps it within arm’s reach nearly all the time, according to a tracking app called Moment. “Your cortisol levels are elevated when your phone is in sight or nearby, or when you hear it or even think you hear it,” says David Greenfield, professor of clinical psychiatry at the University of Connecticut School of Medicine and founder of the Center for Internet and Technology Addiction. “It’s a stress response, and it feels unpleasant, and the body’s natural response is to want to check the phone to make the stress go away.” But while doing so might soothe you for a second, it probably will make things worse in the long run. Any time you check your phone, you’re likely to find something else stressful waiting for you, leading to another spike in cortisol and another craving to check your phone to make your anxiety go away. This cycle, when continuously reinforced, leads to chronically elevated cortisol levels. And chronically elevated cortisol levels have been tied to an increased risk of serious health problems, including depression, obesity, metabolic syndrome, Type 2 diabetes, fertility issues, high blood pressure, heart attack, dementia and stroke. (Catherine Price. www.nytimes.com, 24.04.2019. Adaptado.)

Wood wide web: trees’ social networks are mapped Research has shown that beneath every forest and wood there is a complex underground web of roots, fungi and bacteria helping to connect trees and plants to one another. This subterranean social network, nearly 500 million years old, has become known as the “wood wide web”. Now, an international study has produced the first global map of the “mycorrhizal fungi networks” dominating this secretive world. Using machine-learning, researchers from the Crowther Lab at ETH Zurich, Switzerland, and Stanford University in the US used the database of the Global Forest Initiative, which covers 1.2 million forest tree plots with 28,000 species, from more than 70 countries. Using millions of direct observations of trees and their symbiotic associations on the ground, the researchers could build models from the bottom up to visualise these fungal networks for the first time. Prof Thomas Crowther, one of the authors of the report, told the BBC, “It’s the first time that we’ve been able to understand the world beneath our feet, but at a global scale.” The research reveals how important mycorrhizal networks are to limiting climate change — and how vulnerable they are to the effects of it. “Just like an Magnetic Resonance Imaging scan of the brain helps us to understand how the brain works, this global map of the fungi beneath the soil helps us to understand how global ecosystems work,” said Prof Crowther. “What we find is that certain types of microorganisms live in certain parts of the world, and by understanding that we can figure out how to restore different types of ecosystems and also how the climate is changing.” Losing chunks of the wood wide web could well increase “the feedback loop of warming temperatures and carbon emissions.” Mycorrhizal fungi are those that form a symbiotic relationship with plants. There are two main groups of mycorrhizal fungi: arbuscular fungi (AM) that penetrate the host’s roots, and ectomycorrhizal fungi (EM) which surround the tree’s roots without penetrating them. (Claire Marshall. www.bbc.com, 15.05.2019. Adaptado.)

Wood wide web: trees’ social networks are mapped Research has shown that beneath every forest and wood there is a complex underground web of roots, fungi and bacteria helping to connect trees and plants to one another. This subterranean social network, nearly 500 million years old, has become known as the “wood wide web”. Now, an international study has produced the first global map of the “mycorrhizal fungi networks” dominating this secretive world. Using machine-learning, researchers from the Crowther Lab at ETH Zurich, Switzerland, and Stanford University in the US used the database of the Global Forest Initiative, which covers 1.2 million forest tree plots with 28,000 species, from more than 70 countries. Using millions of direct observations of trees and their symbiotic associations on the ground, the researchers could build models from the bottom up to visualise these fungal networks for the first time. Prof Thomas Crowther, one of the authors of the report, told the BBC, “It’s the first time that we’ve been able to understand the world beneath our feet, but at a global scale.” The research reveals how important mycorrhizal networks are to limiting climate change — and how vulnerable they are to the effects of it. “Just like an Magnetic Resonance Imaging scan of the brain helps us to understand how the brain works, this global map of the fungi beneath the soil helps us to understand how global ecosystems work,” said Prof Crowther. “What we find is that certain types of microorganisms live in certain parts of the world, and by understanding that we can figure out how to restore different types of ecosystems and also how the climate is changing.” Losing chunks of the wood wide web could well increase “the feedback loop of warming temperatures and carbon emissions.” Mycorrhizal fungi are those that form a symbiotic relationship with plants. There are two main groups of mycorrhizal fungi: arbuscular fungi (AM) that penetrate the host’s roots, and ectomycorrhizal fungi (EM) which surround the tree’s roots without penetrating them. (Claire Marshall. www.bbc.com, 15.05.2019. Adaptado.)

Wood wide web: trees’ social networks are mapped Research has shown that beneath every forest and wood there is a complex underground web of roots, fungi and bacteria helping to connect trees and plants to one another. This subterranean social network, nearly 500 million years old, has become known as the “wood wide web”. Now, an international study has produced the first global map of the “mycorrhizal fungi networks” dominating this secretive world. Using machine-learning, researchers from the Crowther Lab at ETH Zurich, Switzerland, and Stanford University in the US used the database of the Global Forest Initiative, which covers 1.2 million forest tree plots with 28,000 species, from more than 70 countries. Using millions of direct observations of trees and their symbiotic associations on the ground, the researchers could build models from the bottom up to visualise these fungal networks for the first time. Prof Thomas Crowther, one of the authors of the report, told the BBC, “It’s the first time that we’ve been able to understand the world beneath our feet, but at a global scale.” The research reveals how important mycorrhizal networks are to limiting climate change — and how vulnerable they are to the effects of it. “Just like an Magnetic Resonance Imaging scan of the brain helps us to understand how the brain works, this global map of the fungi beneath the soil helps us to understand how global ecosystems work,” said Prof Crowther. “What we find is that certain types of microorganisms live in certain parts of the world, and by understanding that we can figure out how to restore different types of ecosystems and also how the climate is changing.” Losing chunks of the wood wide web could well increase “the feedback loop of warming temperatures and carbon emissions.” Mycorrhizal fungi are those that form a symbiotic relationship with plants. There are two main groups of mycorrhizal fungi: arbuscular fungi (AM) that penetrate the host’s roots, and ectomycorrhizal fungi (EM) which surround the tree’s roots without penetrating them. (Claire Marshall. www.bbc.com, 15.05.2019. Adaptado.)

Wood wide web: trees’ social networks are mapped Research has shown that beneath every forest and wood there is a complex underground web of roots, fungi and bacteria helping to connect trees and plants to one another. This subterranean social network, nearly 500 million years old, has become known as the “wood wide web”. Now, an international study has produced the first global map of the “mycorrhizal fungi networks” dominating this secretive world. Using machine-learning, researchers from the Crowther Lab at ETH Zurich, Switzerland, and Stanford University in the US used the database of the Global Forest Initiative, which covers 1.2 million forest tree plots with 28,000 species, from more than 70 countries. Using millions of direct observations of trees and their symbiotic associations on the ground, the researchers could build models from the bottom up to visualise these fungal networks for the first time. Prof Thomas Crowther, one of the authors of the report, told the BBC, “It’s the first time that we’ve been able to understand the world beneath our feet, but at a global scale.” The research reveals how important mycorrhizal networks are to limiting climate change — and how vulnerable they are to the effects of it. “Just like an Magnetic Resonance Imaging scan of the brain helps us to understand how the brain works, this global map of the fungi beneath the soil helps us to understand how global ecosystems work,” said Prof Crowther. “What we find is that certain types of microorganisms live in certain parts of the world, and by understanding that we can figure out how to restore different types of ecosystems and also how the climate is changing.” Losing chunks of the wood wide web could well increase “the feedback loop of warming temperatures and carbon emissions.” Mycorrhizal fungi are those that form a symbiotic relationship with plants. There are two main groups of mycorrhizal fungi: arbuscular fungi (AM) that penetrate the host’s roots, and ectomycorrhizal fungi (EM) which surround the tree’s roots without penetrating them. (Claire Marshall. www.bbc.com, 15.05.2019. Adaptado.)

Leia o texto para responder à questão. The Mona Lisa was recently moved from her usual gallery in the Salle des États, currently being renovated, to a temporary home in the Galérie Médicis. Visitors to the Louvre who have queued patiently for hours are complaining that museum staff are allowing them less than a minute to view the masterpice. The relocation has created bottlenecks of visitors lining corridors and the Louvre is now advising that only those who have pre-booked will be guaranteed a glimpse of the world’s most famous portrait. (David Chazan. www.telegraph.co.uk, 13.08.2019. Adaptado.)

Leia o texto para responder à questão. The Mona Lisa was recently moved from her usual gallery in the Salle des États, currently being renovated, to a temporary home in the Galérie Médicis. Visitors to the Louvre who have queued patiently for hours are complaining that museum staff are allowing them less than a minute to view the masterpice. The relocation has created bottlenecks of visitors lining corridors and the Louvre is now advising that only those who have pre-booked will be guaranteed a glimpse of the world’s most famous portrait. (David Chazan. www.telegraph.co.uk, 13.08.2019. Adaptado.)

Leia o texto para responder à questão. What does love look like? Love is accepting that your partner is not perfect, but you want to be with him or her anyway. Love is being grateful that you are accepted despite your imperfections. Love is still being happy to come home to that same person, even after 30 years. (Harriet Koral. www.nytimes.com, 19.11.2017. Adaptado.)

Leia o texto para responder à questão. What does love look like? Love is accepting that your partner is not perfect, but you want to be with him or her anyway. Love is being grateful that you are accepted despite your imperfections. Love is still being happy to come home to that same person, even after 30 years. (Harriet Koral. www.nytimes.com, 19.11.2017. Adaptado.)

Read the text and asnwer questions: HOME They rose up like men. We saw them. Like men they stood. We shouldn’t have been anywhere near that place. Like most farmland outside Lotus, Georgia, this here one had plenty scary warning signs. The threats hung from wire mesh fences with wooden stakes every fifty or so feet. But when we saw a crawl space that some animal had dug—a coyote maybe, or a coon dog—we couldn’t resist. Just kids we were. The grass was shoulder high for her and waist high for me so, looking out for snakes, we crawled through it on our bellies. The reward was worth the harm grass juice and clouds of gnats did to our eyes, because there right in front of us, about fifty yards off, they stood like men. Their raised hooves crashing and striking, their manes tossing back from wild white eyes. They bit each other like dogs but when they stood, reared up on their hind legs, their forelegs around the withers of the other, we held our breath in wonder. One was rust-colored, the other deep black, both sunny with sweat. The neighs were not as frightening as the silence following a kick of hind legs into the lifted lips of the opponent. Nearby, colts and mares, indifferent, nibbled grass or looked away. Then it stopped. The rust-colored one dropped his head and pawed the ground while the winner loped off in an arc, nudging the mares before him. As we elbowed back through the grass looking for the dug-out place, avoiding the line of parked trucks beyond, we lost our way. Although it took forever to re-sight the fence, neither of us panicked until we heard voices, urgent but low. I grabbed her arm and put a finger to my lips. Never lifting our heads, just peeping through the grass, we saw them pull a body from a wheelbarrow and throw it into a hole already waiting. One foot stuck up over the edge and quivered , as though it could get out, as though with a little effort it could break through the dirt being shoveled in. We could not see the faces of the men doing the burying, only their trousers; but we saw the edge of a spade drive the jerking foot down to join the rest of itself. When she saw that black foot with its creamy pink and mud-streaked sole being whacked into the grave, her whole body began to shake. I hugged her shoulders tight and tried to pull her trembling into my own bones because, as a brother four years older, I thought I could handle it. The men were long gone and the moon was a cantaloupe by the time we felt safe enough to disturb even one blade of grass and move on our stomachs, searching for the scooped-out part under the fence. When we got home we expected to be whipped or at least scolded for stayingout so late, but the grown-ups did not notice us. Some disturbance had their attention. Since you’re set on telling my story, whatever you think and whatever you write down, know this: I really forgot about the burial. I only remembered the horses. They were so beautiful. So brutal. And they stood like men. SOURCE: Excerpted from MORRISON, Toni. Home (2012), Harmondsworth: Penguin, 2012.