Questões de Concurso
Comentadas sobre presente perfeito | present perfect em inglês
Foram encontradas 150 questões
Read the text below to answer the question:
ICEBERG A68a
An enormous iceberg that is heading toward the island of South Georgia in the southern Atlantic Ocean has broken up into three large chunks. Scientists from NASA have been tracking the berg - dubbed A68a - for several weeks. It actually calved from the Larsen C ice shelf in 2017 and has been floating northwards ever since. In recent weeks, a fast-moving stream of water known as the Southern Antarctic Circumpolar Current Front has put the chunks on a trajectory that means they could run aground off the coast of South Georgia. Scientists say the three fragments are roughly 2,600 square kilometres in size. The submerged part of one chunk is 106 metres at its thickest point.
The sheer bulk of the three iceberg chunks poses a serious threat to the wildlife of South Georgia. There could be an environmental catastrophe waiting to happen. If the three mini icebergs collide with the seabed, they could obstruct penguins and seals from foraging for fish. They could also block the route between penguin colonies and their feeding grounds during the breeding season. Scientists worry the underside of the fragments could grind the seabed near South Georgia and disrupt delicate underwater ecosystems. This could be exacerbated by the introduction of a mass of fresh water to the ecosystems as the stationary fragments melt over the summer months.
Available at: https://breakingnewsenglish.com/2012/201229-iceberg-a68a.html
Accessed on January 5th 2021.
Complete the sentences with the correct form of the verb in parenthesis:
1.She ____ the text frequently.(to forget)
2.I_______a new bicycle two months ago. (to buy)
Respectively the order is:
CRIMINALS HAVE SMALLER BRAIN SIZE, SAYS STUDY
A new study has found that antisocial people are more likely to have smaller areas of their brain. Researchers said criminals' brains had a different structure to the brains of people who followed the law. The study is published in the journal "Lancet Psychiatry". Researchers used data from 672 people born in 1972-73. They looked at records of the people's antisocial behaviour between the ages of seven and 26. At the age of 45, the researchers scanned the people's brains. Eighty of the people had a history of criminal and antisocial behaviour from being early teenagers. Researchers found that the areas of the brain linked to emotions, motivation and behaviour control were smaller in the long-term criminals' brains.
Professor Terrie Moffitt, a co-author of the research, said the research could help doctors understand what is behind long-term antisocial behaviour. She said the antisocial people in the study may have behaved badly because of their brain structure. She said: "They are actually operating under some [disability] at the level of the brain." She added that because of this, we needed to care for these people in a kinder way. Lead author Dr Christina Carlisi said: "Differences in brain structure might make it difficult for people to develop social skills. This may prevent them from engaging in antisocial behaviour. These people could benefit from more support throughout their lives."
Available on: https://breakingnewsenglish.com/2002/200221-brain-size.html Accessed on: March, 20th 2020.
Newly discovered primate 'already facing extinction'
(Adaptado de https://www.bbc.com/news/science-environment-54894681)
“He told me about his favorite, but I _________ its name.”
Dr. Dweck’s research into growth mindset
changed education forever
Over 30 years ago, Carol Dweck and her colleagues became interested in students' attitudes about failure. They noticed that some students rebounded while other students seemed devastated by even the smallest setbacks. After studying the behavior of thousands of children, Dr. Dweck coined the terms fixed mindset and growth mindset to describe the underlying beliefs people have about learning and intelligence. When students believe they can get smarter, they understand that effort makes them stronger. Therefore they put in extra time and effort, and that leads to higher achievement.
Recent advances in neuroscience have shown us
that the brain is far more malleable than we ever
knew. Research on brain plasticity has shown how
connectivity between neurons can change with
experience. With practice, neural networks grow
new connections, strengthen existing ones, and
build insulation that speeds transmission of
impulses. These neuroscientific discoveries have
shown us that we can increase our neural growth
by the actions we take, such as using good
strategies, asking questions, practicing, and
following good nutrition and sleep habits. […]
So the researchers asked, “Can we change
mindsets? And if so, how?” This began a series of
interventions and studies that prove we can indeed
change a person’s mindset from fixed to growth,
and when we do, it leads to increased motivation
and achievement. For example, 7th graders who
were taught that intelligence is malleable and
shown how the brain grows with effort showed a
clear increase in math grades.
In addition to teaching kids about malleable
intelligence, researchers started noticing that
teacher practice has a big impact on student
mindset, and the feedback that teachers give their
students can either encourage a child to choose a
challenge and increase achievement or look for an
easy way out. For example, studies on different
kinds of praise have shown that telling children
they are smart encourages a fixed mindset,
whereas praising hard work and effort cultivates a
growth mindset. When students have a growth
mindset, they take on challenges and learn from
them, therefore increasing their abilities and
achievement. […].
Source: https://www.mindsetworks.com/science/.Access:02/12/2019)
Observe the following sentences taken from the text:
I. Recent advances in neuroscience have shown us that the brain is far more malleable than we ever knew.
II. Research on brain plasticity has shown how connectivity between neurons can change with experience.
Mark what is CORRECT about verb tenses in the above sentences:
Australia fires: What's being done to fight the flames?
Large parts of Australia __________ (devastate) by the worst wildfires the country __________ (see) in decades, with huge blazes tearing through bush, woodland and national parks. Record-breaking temperatures and months of drought __________ (help) the fires burn an estimated 10 million hectares (100,000 sq km) of land since 1 July.
Bushfire conditions EASED over the weekend, giving fire crews a period of temporary respite. But authorities __________ (say) the huge fires will persist until there is substantial rainfall. More hot weather is __________ (expect) next week and the risk was far from over, they said. Thousands of firefighters are still battling blazes across large swathes of Australia - ranging in size from small fires to infernos burning across hectares of land. Entire towns have been engulfed and residents across several states have lost their homes. At least 28 people have died.
State and federal authorities have been working together to try to stem the spread. While they have managed to contain some within a matter of days, the biggest blazes have been burning for months.
At least 3,700 firefighters are on the ground at any one time across the country during the worst periods, according to the country's state fire services. Most are in the worst-hit states of New South Wales (NSW) and Victoria. When fires have been at their worst, about 2,700 firefighters have been battling the blazes at any one time in NSW alone. Ben Shepherd, of the NSW Rural Fire Service, said his colleagues had dealt with 4.2m hectares of burning land this season, compared with the typical 300,000 hectares. "It's been an incredibly long campaign," he said.
Fire crews across the country have been joined by 3,000 army, navy and air force reservists who are assisting with search and rescue and clean-up efforts. Further support coming from the US, Canada, and New Zealand, who have sent additional teams and equipment to help.
(https://www.bbc.com/news/world-australia-51008051 )

This is a mind map about:
While in Pakistan the good news is that the killing of journalists _________________ a merciful reduction, intimidation of the media continues to grow. Identify the best alternative that completes the context.
Considere the sentence below:
“Our classes begin at nine.”
The verb tense is:
“My family and I _________ at the hotel since Friday.”
For the question, fill in the blanks with the correct alternative.
Nobody has ________ to my webpage yet.