Questões de Inglês - Pronome relativo | Relative clauses para Concurso

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Q2453841 Inglês
Predicting the unpredictable


Some years ago, a devastating earthquake struck the Italian town of L’Aquila. More than 300 people lost their lives, over 1,500 people were injured, and many buildings were destroyed. Two years later, seven earthquake experts were involved in a court case: Did they adequately warn the public after the initial tremors began? At the heart of the debate is whether they could have predicted a disaster like this.


Although a lot of scientists are working to improve our ability to predict natural disasters, so far no one has come up with a reliable method to forecast earthquakes or volcanic eruptions, days or weeks beforehand. Most of the research focuses on the areas most likely to experience seismic activity – but even our knowledge about where these areas are, is very limited. One reason for this is that human beings have only been around for a very small part of the Earth’s history. In geological terms, we all arrived on the scene very recently. Records from the past 2,000 years are incomplete, and the biggest earthquakes nearly always happen in areas where there have been no earthquakes in recorded history.


So, is there any hope for improving our ability to predict disasters? A solution may come from an unexpected source. Four years ago, a team of US physicists at Rutgers University in New Jersey were studying why pharmaceutical powders stick together. They observed that the powder stuck together when placed in a spinning cylinder, but then developed cracks and collapsed. Just before the cracks developed, an electric signal, like a small bolt of lightning, was created. The scientists repeated the experiment with a wide range of different materials, and they got similar results every time.


This phenomenon might also exist in nature. Some scientists believe that rocks may become electrically charged under unusual pressure, such as before an earthquake. This electric charge then causes changes in the surrounding air or water, which animals may be able to sense before humans do. For example, while biologists were studying a colony of frogs in a pond near L’Aquila, they noticed that nearly all the animals left the water days before the earthquake. A similar thing happened in China, when snakes were hibernating for the winter in caves, but escaped just before a large earthquake. The same kind of electric charge, like the small bolt of lightning felt in the experiment at Rutgers, may have been responsible.


At the moment, there is no reliable way ............ using such findings to predict earthquakes, and further studies may be necessary to give us a better understanding of the interactions involved, but one day, the technology may be used ............ predict future catastrophes. For example, two science institutions in Russia and Britain are already developing a new micro-satellite, which could detect these electric signals and help rescue people ................ natural disasters in time. Scientists are planning to launch the first of these satellites ............... space. Will these satellites be the solution? Only time will tell. For the time being, the best defense is to be prepared.
In the sentence, This electric charge then causes changes in the surrounding air or water, which animals may be able to sense before humans do (paragraph 3), the underlined relative pronoun which refers to:
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Q2389806 Inglês

        Drones are an integral part of the defense and supply-chain industry. However, their prowess and versatility extend beyond these sectors. As the demand for UAVs (unmanned aerial vehicles) continues to increase, the drone market is now estimated to be valued at over 127 billion dollars.


        These uncrewed aircrafts can potentially develop numerous sectors, including transport and travel, exponentially. This is primarily due to their remarkable evolution of collision-avoidance technologies through computer vision and artificial intelligence, allowing them to operate autonomously.


        The dynamic innovation of drone transportation can positively impact emergency services by decreasing emergency response time, offering valuable data from inaccessible regions, and identifying victims via thermal imaging.


Though the concept of a UAV emerges from being “unmanned,” its autonomous power can be used to create functional, personal transportation. Well-known companies like Uber, Airbus, and Boeing are constantly working on developing self-flying drones that can take people from one place to another. 


        In conclusion, drone transportation has a lot of untapped potential beyond supply chain and security surveillance. Whether it is for emergencies, luxury, or space exploration, the future is optimistic for the travel industry.


Internet: <www.skygrid.com> (adapted).




Based on the previous text, judge the following item. 


The word “their” (second sentence of the second paragraph) refers back to “sectors” (first sentence of the second paragraph).  

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Q2383500 Inglês
Text 3A4


      During the last century water infrastructure projects involving large dams played a major role in the socio-economic transformation of many countries. At the same time, in a significant number of cases the benefits were not shared equitably, and the negative impacts on the environmental and sociocultural structures were excessive. In some cases their economic performance was questionable. Diverging views have arisen on the merits and demerits of dams, the roles they play, and their alternatives in providing water and energy services. However, recognition that such roles are complementary rather than mutually exclusive has been growing as the dam debate has moved forward.

      It is envisaged that, as part of the global effort to improve water and energy supplies, more dams will be constructed, especially in developing countries, alongside other diverse alternatives. There will, consequently, be a need to enhance the benefits of dams and avoid many of their drawbacks by applying better decision-making processes within the overall framework of sustainability. There are complex issues around the planning and management of dams in the context of sustainable development which will need to be adequately considered and addressed to achieve sustainable outcomes.

      Dealing with the environmental and social challenges within the context of meeting water and energy needs is at the heart of the sustainability of projects involving dams. Dams are one of the options, structural or non-structural, available to meet specific water or energy needs. In many cases water and energy services are best provided through a mix of options. Each case is different. A decision to build a dam should emerge after a comprehensive assessment of the full range of available options, giving appropriate consideration to all aspects of sustainability.


 United Nations Environmental Programme. Dams and Development: Relevant Practices for Improved

Decision-making. Nairobi: The Secretariat of the Dams and Development Project, 2007. p. 10-1 (adapted).

In the end of the second paragraph of text 3A4, the term “which” refers to
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Q2372092 Inglês
READ TEXT 1 FOR THE QUESTION:


TEXT 1





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What kind of cohesive resource does the pronoun “He” can be classified when used in the sentence: “He never talks to us”? 
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Q2353153 Inglês
Choose the correct relative pronoun to complete the sentence: "I have a friend _________ loves to travel."
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Respostas
1: D
2: E
3: A
4: D
5: E