Questões de Concursos Sinônimos Synonyms

TEXT I

Why do birds sing so loudly in the morning in spring? It’s the ‘dawn chorus’

As spring begins, so does a fresh song at daybreak, unique to the season. Just before the sun rises, birds start singing their melodies, creating a chirpy symphony.

This phenomenon is known as the dawn chorus, and it’s special for a number of reasons: There are more birds singing at this time of year, and they also sing more often. This energetic burst of birdsong is often louder than usual too. The dawn chorus’ early morning explosion of sounds has even inspired multiple poems and songs.

“It's the epitome of spring,” says Jordan E. Rutter, an ornithologist at the American Bird Conservancy. After the long and cold winter, “all of a sudden you have this influx of so many beautiful birds coming back and singing.”

This harmony of birdsong at dawn happens during a fundamental time of the year. The dawn chorus is, in fact, mostly composed of birds of both genders singing to find a mate so they can breed (though males may sing more).

“There is such a large increase in quantity of song by individuals and the collective,” Rutter says. “These birds sing louder to literally be heard. They need to compete with each other as well, and the louder the better in regards to who is the most impressive mate.”

During this time, males also sing to assert their dominance and claim their territory. “Those songs are how they communicate to other males of the same species, or even just other birds and predators in general, and say, ‘This is my home,’” says Rutter.

In the United States and Canada, the dawn chorus can be heard roughly from March through May, when many bird species migrate there from their winter homes to breed. Peak dawn chorus times might depend on where you live, Rutter says. For example, April is peak for the southern U.S., but birds in Washington, D.C., will put on the best show in early May. (Alternatively, in the tropics, the dawn chorus can be heard almost any time of year, as many birds have a prolonged breeding season in those warmer climates.)

Why is it a ‘dawn’ chorus?

But why birds sing in the early morning is still “an open question,” says Mike Webster, an ornithologist at the Cornell Lab of Ornithology. “There's a lot of debate, and I don't think there's any consensus on exactly why it is that everything happens at dawn."

One hypothesis is that weather conditions at daybreak make it easier for birdsong to travel.

“In general, sound travels farther when the air is cooler and more dense. Sound also transmits more clearly (and very slightly faster) when humidity is higher so that details of the song do not degrade as much over distance,” says Heather Williams, a professor at Williams College who has studied the neuroscience of birdsong. She notes that wind may also impede sound transmission. “At dawn, the cooler air results in decreased winds at ground level, so coupled with the higher humidity, sound carries farther and more clearly, with less distortion.”

Extract from

https://www.nationalgeographic.com/animals/article/birds-dawn-chorus (Accessed on 14 April 2025.)

TEXT I

Why do birds sing so loudly in the morning in spring? It’s the ‘dawn chorus’

As spring begins, so does a fresh song at daybreak, unique to the season. Just before the sun rises, birds start singing their melodies, creating a chirpy symphony.

This phenomenon is known as the dawn chorus, and it’s special for a number of reasons: There are more birds singing at this time of year, and they also sing more often. This energetic burst of birdsong is often louder than usual too. The dawn chorus’ early morning explosion of sounds has even inspired multiple poems and songs.

“It's the epitome of spring,” says Jordan E. Rutter, an ornithologist at the American Bird Conservancy. After the long and cold winter, “all of a sudden you have this influx of so many beautiful birds coming back and singing.”

This harmony of birdsong at dawn happens during a fundamental time of the year. The dawn chorus is, in fact, mostly composed of birds of both genders singing to find a mate so they can breed (though males may sing more).

“There is such a large increase in quantity of song by individuals and the collective,” Rutter says. “These birds sing louder to literally be heard. They need to compete with each other as well, and the louder the better in regards to who is the most impressive mate.”

During this time, males also sing to assert their dominance and claim their territory. “Those songs are how they communicate to other males of the same species, or even just other birds and predators in general, and say, ‘This is my home,’” says Rutter.

In the United States and Canada, the dawn chorus can be heard roughly from March through May, when many bird species migrate there from their winter homes to breed. Peak dawn chorus times might depend on where you live, Rutter says. For example, April is peak for the southern U.S., but birds in Washington, D.C., will put on the best show in early May. (Alternatively, in the tropics, the dawn chorus can be heard almost any time of year, as many birds have a prolonged breeding season in those warmer climates.)

Why is it a ‘dawn’ chorus?

But why birds sing in the early morning is still “an open question,” says Mike Webster, an ornithologist at the Cornell Lab of Ornithology. “There's a lot of debate, and I don't think there's any consensus on exactly why it is that everything happens at dawn."

One hypothesis is that weather conditions at daybreak make it easier for birdsong to travel.

“In general, sound travels farther when the air is cooler and more dense. Sound also transmits more clearly (and very slightly faster) when humidity is higher so that details of the song do not degrade as much over distance,” says Heather Williams, a professor at Williams College who has studied the neuroscience of birdsong. She notes that wind may also impede sound transmission. “At dawn, the cooler air results in decreased winds at ground level, so coupled with the higher humidity, sound carries farther and more clearly, with less distortion.”

Extract from

https://www.nationalgeographic.com/animals/article/birds-dawn-chorus (Accessed on 14 April 2025.)

Text 7A1-II

Two roads diverged in a yellow wood,

And sorry I could not travel both

And be one traveler, long I stood

And looked down one as far as I could

To where it bent in the undergrowth;

Then took the other, as just as fair,

And having perhaps the better claim,

Because it was grassy and wanted wear;

Though as for that the passing there

Had worn them really about the same,

And both that morning equally lay

In leaves no step had trodden black.

Oh, I kept the first for another day!

Yet knowing how way leads on to way,

I doubted if I should ever come back.

I shall be telling this with a sigh

Somewhere ages and ages hence:

Two roads diverged in a wood, and I—

I took the one less traveled by,

And that has made all the difference.

Robert Frost. The Road Not Taken. 1916 (adapted).

Read the text by Brown to answer question.

The question of whether or not to distinguish between native and nonnative speakers in the teaching profession has grown into a common and productive topic of research in the last decade. For many decades the English language teaching profession assumed that native English-speaking teachers, by virtue of their superior model of oral production, comprised the ideal English language teacher. Then, Medgyes (1994), among others, showed in his research that nonnative English speaking teachers offered as many if not more inherent advantages. Other authors concur by noting not only that multiple varieties of English are now considered legitimate and acceptable, but also that teachers who have actually gone through the process of learning English possess distinct advantages over native speakers.

As we move into a new paradigm in which the concepts of native and nonnative “speaker” become less relevant, it is perhaps more appropriate to think in terms of the proficiency level of a user of a language. Speaking is one of four skills and may not deserve in all contexts to be elevated to the sole criterion for proficiency. So, the profession is better served by considering a person’s communicative proficiency across the four skills. Teachers of any language, regardless of their own variety of English, can then be judged accordingly, and in turn, their pedagogical training and experience can occupy focal attention.

(Brown, 2006. Adaptado)

Read the following text to answer the question.

By Leo Selivan

In this article, informed by the Lexical Approach, I reflect on grammar instruction in the classroom […]. I consider the problems with ‘traditional’ grammar teaching before arguing that what we actually need is more grammar input as well as showing how lexis can provide necessary ‘crutches’ for the learner.

Lexis = vocabulary + grammar

The shift in ELT from grammar to lexis mirrors a similar change in the attitude of linguists. In the past linguists were preoccupied with the grammar of language; however the advances in corpus linguistics have pushed lexis to the forefront. The term ‘lexis’, which was traditionally used by linguists, is a common word these days and frequently used even in textbooks.

Why use a technical term borrowed from the realm of linguistics instead of the word ‘vocabulary’? Quite simply because vocabulary is typically seen as individual words (often presented in lists) whereas lexis is a somewhat wider concept and consists of collocations, chunks and formulaic expressions. It also includes certain patterns that were traditionally associated with the grammar of a language, e.g. If I were you…, I haven’t seen you for ages etc.

Recognising certain grammar structures as lexical items means that they can be introduced much earlier, without structural analysis or elaboration. Indeed, since the concept of notions and functions made its way into language teaching, particularly as Communicative Language Teaching (CLT) gained prominence, some structures associated with grammar started to be taught lexically (or functionally). I’d like to is not taught as ‹the conditional› but as a chunk expressing desire. Similarly many other ‹traditional› grammar items can be introduced lexically relatively early on.

Less grammar or more grammar?

You are, no doubt, all familiar with students who on one hand seem to know the ‘rules’ of grammar but still fail to produce grammatically correct sentences when speaking or, on the other, sound unnatural and foreign-like even when their sentences are grammatically correct. Michael Lewis, who might be considered the founder of the Lexical Approach, once claimed that there was no direct relationship between the knowledge of grammar and speaking. In contrast, the knowledge of formulaic language has been shown by research to have a significant bearing on the natural language production.

Furthermore, certain grammar rules are practically impossible to learn. Dave Willis cites the grammar of orientation (which includes the notoriously difficult present perfect and the uses of certain modal verbs) as particularly resistant to teaching. The only way to grasp their meaning is through continuous exposure and use.

Finally, even the most authoritative English grammars never claim to provide a comprehensive description of all the grammar, hence the word ‘introduction’ often used in their titles (for instance, Huddleston & Pullum’s A Student’s Introduction to English Grammar or Halliday’s An Introduction to Functional Grammar).

If grammarians do not even attempt to address all areas of grammar, how can we, practitioners, cover all the aspects of grammar in our teaching, especially if all we seem to focus on is a limited selection of discrete items, comprised mostly of tenses and a handful of modal verbs? It would seem that we need to expose our students to a lot of naturally occurring language and frequently draw their attention to various grammar points as they arise.

For example, while teaching the expression fall asleep / be asleep you can ask your students:

• Don’t make any noise – she’s fallen asleep.

• Don’t make any noise – she’s asleep.

What does’s stand for in each of these cases (is or has)?

One of the fathers of the Communicative Language Teaching Henry Widdowson advocated using lexical items as a starting point and then ‘showing how they need to be grammatically modified to be communicatively effective’ (1990:95). For example, when exploring a text with your students, you may come across a sentence like this:

• They’ve been married for seven years.

You can ask your students: When did they get married? How should you change the sentence if the couple you are talking about is no longer married?

The above demonstrates how the teacher should be constantly on the ball and take every opportunity to draw students’ attention to grammar. Such short but frequent ‘grammar spots’ will help to slowly raise students’ awareness and build their understanding of the English grammar system.

[…]

Conclusion

So is there room for grammar instruction in the classroom? Certainly yes. But the grammar practice should always start with the exploitation of lexical items. Exposing students to a lot of natural and contextualised examples will offer a lexical way into the grammar of the language.

To sum up, grammar should play some role in language teaching but should not occupy a big part of class time. Instead grammar should be delivered in small but frequent portions. Students should be encouraged to collect a lot of examples of a particular structure before being invited to analyse it. Hence, analysis should be preceded by synthesis.

Lastly, language practitioners should bear in mind that grammar acquisition is an incremental process which requires frequent focus and refocus on the items already studied.

Available at: https://www.teachingenglish.org.uk/professionaldevelopment/teachers/knowing-subject/articles/grammar-vs-lexisor-grammar-through. Accessed on: April 29, 2024.

O texto seguinte servirá de base para responder a questão.

HVAC Contractors Need to Adapt to Repair Market

Repair or replace is a question homeowners often need to answer, and it greatly impacts an HVAC contractor's business. During COVID, the residential HVAC industry saw a replacement market boom. But in 2023 and now the beginning of 2024, there has been a shift to a repair market that HVAC contractors need to be aware of as they run their businesses.

According to numbers from the Air-Conditioning, Heating and Refrigeration Institute (AHRI), shipments of unitary air conditioners and heat pumps were down 16.7% in 2023, compared to 2022. Gas furnaces were down 23%.

"The replacement market is performing worse when you strip out new construction," said industry leader Matt Michel. "Housing starts were down around 5%, according to the St. Louis Federal Reserve, so the replacement market for unitary air conditioners and heat pumps was down in the low 20s."

Distributors are seeing similar numbers, according to the Heating, Air-conditioning, & Refrigeration Distributors International (HARDI).

"We definitely are seeing a shift here. And that shift has actually been visible for some time," said Tim Fisher, HARDI director of market intelligence.

HARDI receives data from FieldEdge on the invoice and quote trends exhibited by their users. Invoices reflect work that has been completed, whereas quotes reflect potential future work and are most often provided for new system installations. HARDI has found that, over time, the ratio of new invoices to new quotes is a useful indicator of whether a market is trending more toward repair than replace and vice versa.

The numbers show the annual growth rate bottomed out in the spring of 2022 but remained negative through most of the year, indicating that replacement trends were broadly higher in 2022 than in 2021. That figure increased through 2023, peaking in May but generally remaining positive for most of the year. While the three-month growth rate has slowed in recent months — an encouraging sign — they don't expect much of a negative drift in 2024, meaning that repair versus replace trends will broadly remain similar to where they were in 2023.

So why is this change happening? It can't be attributed to any single factor but rather a combination of items. Certainly, higher costs of both HVAC systems and housing in general play a role.

"Adapting to the economy is something contractors need to do. We can't just assume people are going to reach into their pocket and replace," said ACCA CEO Bart James. "Contractors need to help customers get through the current need. People are slowing down on theirspending. People are worried about what is coming and how they are preparing for it. Wages and other things are not keeping up with how fast prices are going up."

James said reading the numbers shows there is a shift in the home improvement market.

"Just look at the Walmart and Home Depot quarterly projections. Walmart did well with more visits but had smaller purchases, while Home Depot did not hit their numbers. That tells you that people are handling investments into housing differently. That will catch up with HVAC, too. "Contractors need to prepare by making investments in their team to meet the needs of the customer. And that need is not always a replacement option but also can be a repair option," James continued.

The sluggish home resale market is another reason for the shift towards a repair market. "Home improvement spending, in aggregate, tends to follow existing home sales totals nationally," Fisher said. "People invest more in their homes prior to selling to boost its value, and new homeowners spend more in their first year of moving than homeowners who stay put. This has major implications for HVAC replacement demand, which, historically, peaks when existing home sales are at their highest and falls off when existing home sales decline.

"Both the 3-month and 12-month growth rates bottomed out earlier in 2023, and while still negative, have slowed significantly," he continued. "We believe that home sale totals are at or nearing their trough, and over the duration of 2024 should steadily improve and finish at or ahead of 2023 totals."

The final reason is the cyclical nature of HVAC. It reflects the shipment cliff from 15 years ago, when the industry contracted 40% after peak shipments in 2005. Contractors cannot replace what was never installed.

How do HVAC contractors deal with this shift? Michel believes they should embrace the repair market.

"The money is better in replacements," he said. "It always has been and always will be. However, margins are better in service. For the next couple of years, anyway, contractors should focus on building up their service business and making money on it."

Since service involves more labor, and labor carries more overhead than equipment and material, keeping a close watch on overhead expenses is a must.

"Contractors need to build the service base, watch your marketing expenses drop, and down the road, the replacement margins and close rates to a satisfied service base will rise," Michel said. "Once we get past the shipment cliff, the replacement market will begin a decade-long run with every year being better than the year before it. We know this because it's what happened in the past, and when it comes to replacements, the past truly is a prologue."

Contractors in most parts of the country are already feeling the pinch of a slower market, and their experiences in 2024 are unlikely to be much different from their experiences in 2023 though rebounds from themilder temperatures we saw during peak months last year would go a long way in improving demand in 2024.

HARDI advises contractors should consider the following six tactics in '24:

• 
  
• •Offer financing options: Any homeowner considering a new system is likely going to feel some sticker shock if it's been a few years since they
• last bought a system. Financing a new system helps to alleviate that shock, making the big sticker prices much more palatable monthly payments.
• •Protect margins: Work to ensure that your pricing for jobs is consistent with market trends, and attempt to pass through as much of the higher system costs as possible. Likewise, now is a critical time to manage operating expenses closely. Together, good cost  management and smart pricing can help protect business margins in 2024.
• •Educate homeowners: Many homeowners may not fully understand the long-term benefits of replacing their HVAC system versus frequent repairs. Offer educational materials, such as blog posts, videos, or pamphlets, explaining the advantages of a new system 
• in terms of energy efficiency, lower maintenance costs, and improved IAQ. Also, be sure to make clear to your customers which incentives they may qualify for through IRA or other state-level rebate/incentive programs. 
• •Focus on value proposition: Emphasize the value proposition of a new HVAC system, highlighting its reliability, longevity, and performance. Help homeowners understand that investing in a replacement now can save  them money and hassle in the long run.
• •Offer maintenance packages: Create maintenance packages that bundle regular servicing with discounts on repairs or replacements. This can encourage homeowners to invest in preventive maintenance and build a long-term relationship with your company. 
• •Diversify services: Explore diversifying your services beyond just HVAC installations and repairs. For example, you could offer IAQ assessments, smart thermostat installations, or energy audits to provide additional value to homeowners and generate new revenue streams.

https://www.achrnews.com/articles/154324-hvac-contractors-need-to-ad apt-to-repair-market

Atenção! Leia o texto a seguir para responder à questão.

The research paper published in ‘Humanities & Social Sciences Communications’ — an open-access journal, distributed by Springer Nature — examines the impact of AI on “loss in decisionmaking and privacy concerns among university students in Pakistan and China”.

The rise of AI has also exposed students and teachers to a number of challenges, particularly data hacking and systemic and racial biases. “Many people are now concerned with the ethical attributes of AI systems and believe that the security issue must be considered in AI system development,” the researchers claimed. In order to mitigate safety concerns, the paper said there was a need to “continuously re-evaluate and re-design” security practices. However, academia is poorly equipped to deal this issue due to a shortage of funding and technical staff. “No one can run from the threat of AI concerning cybersecurity, it behaves like a double-edged sword.”

As per the research, AI has the potential to revolutionise the education sector but with certain drawbacks. In order to effectively harness this technology, the paper called for steps to ensure AI does not cause at least “severe ethical concerns”, and technology backed by secure algorithms to ensure data security and minimisation of AI’s bias. It also recommended measures to curtail overreliance on AI to address “laziness” and cognitive deficiency.

ABBAS, Zaki. AI making students lazy, impairing cognition: study. Disponível em: https://www.dawn.com/news/1759121/ai-making-students-lazy-impairingcognition-study. Acesso em: 12 jul. 2024. Adaptado.