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Q2453835 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.
After reading the text carefully, we can infer that the main intention of the author of the article is to:
Alternativas
Q2453834 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.
Study these sentences and decide if they are true ( T ) or false ( F ), according to the article.

( ) Some years ago, a court found that seven scientists were responsible for 300 deaths and 1,500 injuries in the L’Aquila earthquake.
( ) Several research studies in physics and biology show that electric charges may be able to predict earthquakes in the future.
( ) Scientists in Britain and Russia have developed satellites that can already predict earthquakes accurately.
( ) Scientists believe that rocks may become electrically charged before an earthquake.

Choose the alternative which presents the correct sequence, from top to bottom.
Alternativas
Q2452360 Inglês
Read the excerpt that follows from Khalid and Husnin’s (2019) paper “CHALLENGES AND SUPPORT FOR THE DEVELOPMENT OF NOVICE TEACHERS’ PROFESSIONAL IDENTITIES”.


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“In order to become effective, teachers have to be professionally prepared. Teachers therefore need to experience continuing professional development so as to become more effective (Harris, 2002). For pre-service teachers, teaching practice is one of the key elements in their training (Haigh and Tuck, 1999; Hill and Brodin, 2004). Through pre-service training, student teachers are provided with experience in teaching and learning in and outside the classroom, as well as opportunities to enhance the development of their characters so as to become ethical and professional (Kennedy, 2006). Some past studies have proven that teaching practice helps pre-service teachers to have better discussions with lecturers and mentors, and thus helps pre-service teachers to determine the approaches to use and their implications in teaching (Botha and Reddy, 2011; Agbo, 2003). In addition, teaching practice has been found to help pre-service teachers to enhance those skills related to problem identification, decision making, and the selection of approaches to overcome problems in classroom situations, and has also been found to be incredibly significant in developing pre-service teachers’ confidence in themselves (Khalid, 2014). Nevertheless, teachers’ professional development is not merely limited to preservice training. Berliner (1995) views the initial stage of new teachers’ professionalism as the critical stage in which novice teachers will face numerous conflicts, responsibilities and tasks”.


That being said, relying on linguistic skills and reading techniques, check the answer which is associated with the global meaning of the excerpt of the paper provided. 
Alternativas
Q2452359 Inglês
Comparative Adjectives compare one person or thing with another and enable us to say whether a person or thing has more or less of a particular quality. On the other hand, Superlative Adjectives describe one person or thing as having more of a quality than all other people or things in a group. Both Comparatives and Superlatives Adjectives can be used to highlight SUPERIORITY, as their principles and rules of formation may differ typically based on the type of adjectives, may it be short or long. That being said, check (T) for TRUE and (F) for FALSE, considering the information provided on Comparatives and Superlatives Adjectives formation to highlight SUPERIORITY, then check the correct answer.


( ) The comparative of short adjectives such as “pretty, happy and heavy” are “prettyer than, happyer than and heavyer than”, for the vowel “y” is preceded by another consonant.


( ) The comparative of long adjectives such as “beautiful, interesting and expensive” are “beautifuler than, interestinger than and expensiver than”, as the suffix “ER” is considered to be the general rule for those type of adjectives.


( ) The comparative of short adjectives such as “grey, fey and stray” are “greier than, feier than and straier than”, for the vowel “y” is preceded by another vowel.


( ) The comparative of Latin origin adjectives such as “basic, famous and competent” are “more basic than, more famous than and more competent than”, for using “more” before adjectives like those is considered to be the most adequate rule to use.


( ) The comparative of short adjectives such as “nice, wise and late” are “nicer than, wiser than and later than”, for they are all ending in “E”, and adding only the suffix “R” at the end of those type of adjectives is the correct rule to use.


( ) The superlative of short adjectives such as “fat, thin and big” are “the fatter, the thinner and the bigger”, for they all are ending in “C-V-C” (consonant-vowel-consonant).


( ) The superlative of irregular adjectives such as “good, bad and far” are “the goodest, the baddest and the farrest”, for adding the suffix “EST” at the end of those type of adjectives is considered to be the most appropriate rule to use.


( ) The superlative of long adjectives such as “pleasant, intelligent and successful” are “the most pleasant, the most intelligent and the most successful”, for adding “most” before those types of adjectives, instead of suffixes such as “ST, EST or IEST”, is the correct rule to use.


( ) The superlative of short adjectives such as “much, some and many” is “the most”, not because those adjectives are necessarily short, but because they are all irregular and share at certain point and extent the same semantics – meaning.


( ) If it is correct to say adjectives such as “bad, good and far” are irregular, it is also correct to say that the comparative of these adjectives are “worse than, better than and farther than” in this respective order.
Alternativas
Q2452358 Inglês
Sentence can be defined as a group of one or more words. On the other hand, sentence structure is understood as the way basic grammatical elements (a subject, predicate, and sometimes direct or indirect objects) of a sentence are combined. The rules for how a sentence is constructed are simple. These include the necessity for a subject, predicate, and object (in that order) in every sentence. Beyond that, we can also add elements like prepositions and conjunctions. In English, for example, sentences can be classified as simple, complex and compound. That being said, check the answer that provides the correct information about the types of sentence structure in English.
Alternativas
Respostas
11: A
12: D
13: C
14: D
15: B