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Questões de Concurso Sobre verbos modais | modal verbs em inglês

Questões Discursivas

Foram encontradas 371 questões

Q4247247 Inglês
Read the text to answer question.


Using Machine Learning to Develop Personalized Vaccines for Cancer


Yale researchers have developed a machine learning model, called Immunostruct, that can help scientists create more personalized vaccines, including vaccines for cancer. They described the tool in Nature Machine Intelligence along with findings from applying it to cancer and immunology data.

    When a potential threat, such as a virus or tumor, arises in our body, our immune cells recognize peptides---essentially short proteins---on the surface of the invader and mount a defensive response. This small region that the immune system interacts with is known as an epitope. 

    Epitope-based vaccines are an emerging technology that contain specific peptides in order to trigger immune responses that precisely target particular diseases. Ongoing studies show that these vaccines are a promising potential immunotherapy for a range of cancers including melanomas, breast cancers, and glioblastomas. Researchers are also investigating whether these vaccines could more effectively combat new variants of infectious diseases.

    To develop these vaccines, scientists can use models that help them predict which peptides are most likely to trigger a strong immune response to a particular antigen. A limitation of many of these models, the researchers say, is that they treat peptides as a one-dimensional sequence of amino acids, not the three-dimensional, active structures that they are.

    Now, Yale researchers have created a model that also incorporates structural and biochemical properties of peptides. In the new study, they show that the multimodal model is more effective at identifying peptide candidates than its predecessors.

    "Cancer is extremely heterogeneous---which often makes it very hard to treat effectively," says Kevin B. Givechian, PhD, an MD-PhD student at Yale and co-first author on the study. “We have built a deep-learning model that integrates more information than had previously been combined to help us improve the identification of vaccine targets that stimulate people's immune system against their own tumor. Doing so would enable a more effective and less toxic method of treatment."


ВАCKMAN, Isabella. Using Machine Learning to Develop Personalized Vaccines for Cancer. Yale School of Medicine, 24 fev. 2026. Acesso em: 28 june. 2026.
Read the excerpt: "these vaccines could more effectively combat new variants of infectious diseases."

The modal verb "could" in this context primarily expresses:
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Q4246813 Inglês
READ TEXT II AND ANSWER THE  QUESTION THAT FOLLOW.

TEXT II 


q20_23.png (213×194)

Taken from: https://ecdn.teacherspayteachers.com
A typical situation during a class is when a student asks to leave the room.

In this case, when granting permission, the teacher’s reply should be
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Q4242176 Inglês
As conditional clauses, (orações condicionais), são empregadas para expressar diferentes relações entre condição e consequência. A Second Conditional é utilizada para indicar situações hipotéticas ou improváveis no presente ou no futuro.
Considerando-se as regras de uso da Second Conditional, assinale a alternativa que apresente a construção gramaticalmente correta.
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Q4229156 Inglês
O texto seguinte servirá de base para responder à questão.


Peru's Nazca lines were paths for prehistoric culture: Japanese researchers


Tokyo, 16 Jan (EFE).- The mysteries shrouding Peru's Nazca Lines have intrigued scientists for decades. Now, a group of Japanese researchers has developed a new theory that the geoglyphs etched into the ground served as paths and routes. The lines forged into myriad figures of animals and plants straddle an area of 1,000 square kilometers of the immense Ica desert in southern Peru. They were created during the Nazca culture, a pre-Columbian archaeological culture that flourished between the 1st and 7th centuries BC. A research team led by Masato Sakai, of the University of Yamagata in western Japan, has discovered, with the help of local archaeologists, aerial images and drones, over 350 new etchings since 2004. Sakai says there are two types of geoglyphs, linear motifs that were created by removing the upper black stones to reveal the white earth underneath and raised lines that give the pictorial representations depth and that archeologists call relief lines. «The linear ones exist at the beginning and end of straight paths and can be used to travel from one valley to another (...) while the relief ones are on the sides of paths that are not straight and are usually etched on a slope,» the expert says. The meaning of the lines has long been up for debate. Some say they represented an astronomical calendar, others considered they were religious figures and some have even suggested that they serve as landing pads for UFOs. «I'm interested in letters,» Sakai says. «Everyone uses alphabets, but in Andean civilization, they didn't have that way of communicating, so I wanted to discover how they did (communicate).» 


The researcher is convinced that the Nazca lines were used as a means of prehistoric communication


Despite their antiquity, the geoglyphs were not discovered until 1930 because these could only be appreciated with an aerial view or from some of the site's surrounding hills. The team of Japanese researchers started the project using satellite and aerial photos, and more recently using drones, and have now identified hundreds of figures, including a spider, a monkey, a hummingbird, a condor, a pelican, a gull, a snail, a whale, a snake and a llama. The team struck a deal with tech giant IBM in 2019 and have tapped into state-of-the-art artificial intelligence (AI) that could help reveal the location of more figures and help with deciphering their meaning. «It is always a hypothesis, but we hope that with AI we can check whether theories are correct or suggest better ones that coincide with the new data,» the expert adds. Finding all the figures, which according to the expert could be in the thousands, is key to their conservation from both the weather and mining and agriculture which is prevalent in the region. «For the people of Nazca, the geoglyphs are a source of pride because the city is not very big, but many people come to see the figures. When we find new ones, we share the information with the local people because we know that they will respect and defend them, because it is the work of their ancestors» Sakai says. EFE


https://efe.com/other-news/2023-01-16/nazca-lines/
Read the sentence below:

"It is always a hypothesis, but we hope that with AI we can check whether theories are correct or suggest better ones that coincide with the new data," the expert adds.

The modal verb "can" is used in the sentence to express:
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Q4219684 Inglês
Why art gallery visits may be one of the healthiest habits you can build

This year’s top Health stories celebrate the kind of progress that hits close to home: advances that help us live longer, feel better, and take care of one another. From mental health wins to medical innovations, these 2025 highlights are all about healing, hope, and human potential.

Most of us know the feeling of standing in front of a painting that makes us pause. Maybe it’s a burst of color that lifts our mood or a quiet scene that steadies the mind. Either way, a new study from King’s College London suggests that these moments are doing far more than sparking emotion. Researchers have found measurable evidence that viewing original art can support both mental health and long-term physical wellbeing.

Their findings point to something powerful: spending even a short amount of time with original artworks may reduce stress, improve emotional balance, and potentially contribute to a longer, healthier life. And the best part is that you do not need to be an art expert to benefit.

What the study actually measured

To explore the connection between art and health, researchers invited fifty healthy adults between the ages of eighteen and forty to take part in an experiment. One group visited The Courtauld Gallery in London, where they viewed original masterpieces by artists including Vincent van Gogh and Édouard Manet. A second group viewed high-quality reproductions in a non-gallery setting.

Participants wore sensors that tracked heart rate, skin temperature, and other subtle responses. They also provided saliva samples before and after the experience so researchers could measure changes in stress and inflammation.

The results were striking:

   Cortisol, better known as the body’s primary stress hormone, fell by 22 percent among gallery visitors. Those who saw reproductions saw only an eight percent drop.

     Pro-inflammatory cytokines decreased by 30 percent in the gallery group and 28 percent in the reproduction group.
    
    Gallery visitors also showed signs of emotional engagement, including small drops in skin temperature and variation in heart-rate patterns.

These shifts matter because high cortisol and inflammation are linked to chronic conditions such as anxiety, heart disease, and diabetes. In other words, your quiet moment with an original painting could be supporting your long-term health in ways you cannot feel immediately.

Why original art matters even more

Although both groups experienced some positive changes, the impact was stronger for those who viewed original artworks. Researchers believe that the immersive environment of a gallery adds layers of sensory experience with elements that highlight space, scale, texture, and atmosphere. These aspects work together to deepen the body’s response.

Importantly, the researchers emphasized that the benefits appeared regardless of art knowledge or emotional intelligence. You do not need to understand an artist’s entire catalog or even consider yourself an “art person” to gain something meaningful.

A simple, accessible step toward wellbeing

The implications of this study reach beyond museum walls. These findings help pave the way for broader integration of art and wellbeing, offering a low-cost and accessible option for reducing loneliness, easing depression, and improving life satisfaction.

And while art may not replace clinical care, it can be a gentle, joyful tool to add to your wellness routine. The next time you find yourself lingering in front of a painting, know that your body is responding in ways that support you; calming, stimulating, and restoring at the same time.


Source: https://www.optimistdaily.com/2026/01/why-art-galleryvisits-may-be-one-of-the-healthiest-habits-you-can-build-2/. Access on May 4th 2026. 
Read the fifth and sixth paragraphs of the text and analyze the statements below.

I. In ‘Those who saw reproductions saw only an eight percent drop’, ‘who’ is a relative pronoun.
II. In ‘your quiet moment with an original painting could be supporting your long-term health in ways you cannot feel immediately’, there are two examples of modal verbs.
III. In ‘Those who saw reproductions saw only an eight percent drop’, ‘an’ is an example of preposition.
IV. In ‘The results were striking’, ‘the’ is an example of indefinite article.

Which statements are completely accurate?
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Q4217986 Inglês

Read text I and answer the  question that follow it.


TEXT I

The Growing Complexity of Airspace

        The aviation industry has witnessed unprecedented growth in recent years. The number of flights, both commercial and private, has surged, resulting in a more congested airspace. This increased traffic volume places immense strain on air traffic controllers, who must manage a complex web of aircraft movements with precision and efficiency.

        Moreover, the integration of unmanned aerial vehicles (UAVs or drones) into the airspace adds another layer of complexity. While drones offer various benefits, their unregulated use poses significant risks to commercial aviation. Harmonizing the operations of manned and unmanned aircraft is a major challenge that requires careful consideration and robust regulations.

        Despite advancements in aviation technology, the air traffic control system still relies heavily on outdated infrastructure and systems. Many air traffic control centers operate with aging equipment that is prone to failures and lacks the capacity to handle the increasing volume of traffic. This infrastructure gap can lead to delays, inefficiencies, and safety concerns.

         Furthermore, the integration of new technologies, such as advanced automation and data analytics, has been slow. While these technologies hold the potential to revolutionize air traffic management, their implementation has been hindered by various factors, including cost, interoperability, and cybersecurity concerns.

        Air traffic control is a high-pressure job that demands exceptional focus, decision-making skills, and situational awareness. While air traffic controllers undergo rigorous training, human error remains a significant risk factor. Factors such as fatigue, stress, and workload can contribute to mistakes that have serious consequences. […]

        The increasing reliance on technology in the aviation industry has made it a prime target for cyberattacks. Air traffic control systems are critical infrastructure and must be protected from malicious actors. A successful cyberattack could have catastrophic consequences, including loss of life and economic damage. […]

        Addressing the problems facing air traffic control requires a multi-faceted approach involving collaboration between government agencies, aviation industry stakeholders, and technology providers.


Adapted from https://birminghamjournal.co.uk/ problems-with-air-traffic-control-today/

The modal verb in “must be protected from malicious actors.” (6th paragraph) indicates 
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Q4204987 Inglês
You __________ wear a seatbelt while driving.
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Q4203080 Inglês
Choose the sentence in which the modal verb expresses obligation.
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Q4197728 Inglês
Escolha o verbo modal que indica uma obrigação ou regra:
"You ________ wear a seatbelt while driving. It's the law."
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Q4186210 Inglês

California is Free of Drought for The First Time in 25 Years


By Clara Harter 



*California can be referred to as “The Golden State”.

(Available at: https://www.latimes.com/california/story/2026-01-09/california-has-no-areas-of-dryness-first- time-in-25-years – text specially adapted for this test).  

The underlined word “should” in “Fortunately, California should be clear of water supply risks” (l. 37) expresses a: 
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Q4183486 Inglês
Identify the correct structure for a Third Conditional sentence, which is often used to express regrets about the past:
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Q4176297 Inglês
In communicative interaction, modality may reveal speaker attitude, interpersonal positioning, and degrees of certainty during spoken or written production. Teachers frequently examine modal structures to explore how meanings are negotiated according to context and communicative intention. Considering modality in English grammar and discourse, identify the correct statement:
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Q4174345 Inglês

Read the sentences below and choose the alternative that correctly explains the meaning of the modal verb in each case.



I. Candidates shall submit all required documents before the final deadline.


II. Shall we begin the meeting now? 

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Q4155962 Inglês
Choose the statement in which the underlined modal verb denotes a logical necessity.  
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Q4149827 Inglês
Regarding traffic signs and regulations, identify the alternative in which the modal verb expresses a strict obligation:
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Q4149825 Inglês
Considering the conditional sentences below, identify the option that expresses a hypothetical situation in the past (third conditional). 
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Q4134591 Inglês
Analyze the alternatives below carefully and identify the sentence in which there is a correct example of the use of a modal verb according to standard English grammar.
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Q4125818 Inglês

Modal verbs in English express notions such as obligation, possibility, permission, and ability, varying according to the communicative context. Consider the sentence: "Students ___ wear uniforms at this school; it is a mandatory rule." Choose the alternative that presents the modal that expresses obligation and appropriately fills the gap.

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Q4117231 Inglês
What is the semantic function of the expression “can do my job”?
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Q4108009 Inglês
Choose the alternative that expresses obligation: 
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Respostas
1: E
2: E
3: D
4: C
5: A
6: B
7: A
8: E
9: D
10: A
11: C
12: A
13: B
14: C
15: C
16: A
17: D
18: C
19: A
20: D