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Read text III to answer questions 30 to 32.
Text III
Causes and Effects of Climate Change
Glaciers are melting, sea levels are rising, cloud forests are dying, and wildlife is scrambling to keep pace. It has become clear that humans have caused most of the past century's warming by releasing heat-trapping gases as we power our modern lives. Called greenhouse gases, their levels are higher now than at any time in the last 800,000 years.
We often call the result global warming, but it is causing a set of changes to the Earth's climate, or long-term weather patterns, that varies from place to place. While many people think of global warming and climate change as synonyms, scientists use "climate change" when describing the complex shifts now affecting our planet's weather and climate systems — in part because some areas actually get cooler in the short term.
Climate change encompasses not only rising average temperatures but also extreme weather events, shifting wildlife populations and habitats, rising seas, and a range of other impacts. All of those changes are emerging as humans continue to add heat-trapping greenhouse gases to the atmosphere, changing the rhythms of climate that all living things have come to rely on.
What will we do — what can we do — to slow this human-caused warming? How will we cope with the changes we _______ into motion? While we struggle to figure it all out, the fate of the Earth as we know it — coasts, forests, farms, and snow-capped mountains — hangs in the balance.
By Christina Nunez
Adapted from https://www.nationalgeographic.com/environment/article/global-warming-overview
Read the following sentence.
"How will we cope with the changes we _______ into motion?"
Which option completes the sentence correctly?
Read text III to answer questions 30 to 32.
Text III
Causes and Effects of Climate Change
Glaciers are melting, sea levels are rising, cloud forests are dying, and wildlife is scrambling to keep pace. It has become clear that humans have caused most of the past century's warming by releasing heat-trapping gases as we power our modern lives. Called greenhouse gases, their levels are higher now than at any time in the last 800,000 years.
We often call the result global warming, but it is causing a set of changes to the Earth's climate, or long-term weather patterns, that varies from place to place. While many people think of global warming and climate change as synonyms, scientists use "climate change" when describing the complex shifts now affecting our planet's weather and climate systems — in part because some areas actually get cooler in the short term.
Climate change encompasses not only rising average temperatures but also extreme weather events, shifting wildlife populations and habitats, rising seas, and a range of other impacts. All of those changes are emerging as humans continue to add heat-trapping greenhouse gases to the atmosphere, changing the rhythms of climate that all living things have come to rely on.
What will we do — what can we do — to slow this human-caused warming? How will we cope with the changes we _______ into motion? While we struggle to figure it all out, the fate of the Earth as we know it — coasts, forests, farms, and snow-capped mountains — hangs in the balance.
By Christina Nunez
Adapted from https://www.nationalgeographic.com/environment/article/global-warming-overview
Read the following sentence.
"How will we cope with the changes we _______ into motion?"
Which option completes the sentence correctly?
Resolução comentada
"Set into motion" com present perfect: have already set.
A expressão é "set into motion" (pôr em movimento). O contexto fala de mudanças que já causamos, então usa-se o present perfect: "have already set". O particípio de set é set.
Análise das alternativas
B) "sat" é de sit, verbo diferente. C) "have sit" é de sit e está errado. D) "have sat" é de sit, sentido errado. E) "have set yet" é inadequado numa oração afirmativa; "yet" é típico de negativas e interrogativas.
Referência: Gramática: Present Perfect e verbos irregulares
Resolução comentada do VaiConcursos.