Questões de Concurso Sobre inglês
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Today, it seems that no one is uninformed about the environment. Every day the media shows us more evidence of climate change: extreme weather, melting ice-caps, and rising seas. Most of us believe we can do something to prevent global disaster, such as recycling, or conserving energy. It’s strange to recall that, before the 1960s, few people knew of the damagewe were doing to the planet. However, one scientist had already realized the dangers ahead. And today, this same man believes it may be too late to save the world. In the 1960s, Professor James Lovelock came up with one of the most famous theories on the environment – the GAIA hypothesis. According to this hypothesis, the earth’s atmosphere, soil, and oceans work in concert to provide an inhabitable environment for humans. If we disrupt these elements too severely, the earth may one day become uninhabitable. In the decade before he developed the Gaia hypothesis, Lovelock had created a device to detect atmospheric chemicals. With this device, he discovered particular chemicals, called CFCs. Later, other scientists discovered that these CFCs had damaged the earth’s ozone layer. Before then, we hadn’t knows about the hole in the ozone layer. By 1979, Lovelock had put forward his theories on the environment, in his first book. At that time, few people believe him. Before scientists such as Lovelock publicized environmental issues, the environment hadn’t been a very fashionable topic. In 2004, after many people had only just started to accept the reality of global warming, Lovelock became convinced that climate change was irreversible. In 2006, he wrote another book describing his latest ideas. In 40 years, Lovelock believes large parts of the world will be desert. We will need to make synthesized food to feed the world’s population. ‘Is Lovelock right this time too? Surely we can prevent this nightmare, if we all recycle, use renewable energy, and travel less by plane and car? Lovelock disagrees. According to him, it is now impossible to reverse global warming. We did not act quickly enough when we had the chance. Renewable energy and recycling are a case of too little, too late. Ultimately, if the human race is to survive, Lovelock believes we need to use more technology, not less. In his view, only nuclear energy can provide sufficient power for the planet. Now over 90 years old, Lovelock may not live to find out if he is right. But we will...
Choose the alternative which presents the correct definitions. They are underlined in the text.
Real-time
A real-time operating system is a multitasking operating system that aims at executing real-time applications. Real-time operating systems often use specialized scheduling algorithms so that they can achieve a deterministic nature of behavior. The main objective of real-time operating systems is their quick and predictable response to events. They have an event-driven or time-sharing design and often aspects of both. An event-driven system switches between tasks based on their priorities or external events while time-sharing operating systems switch tasks based on clock interrupts.
Multi-user
A multi-user operating system allows multiple users to access a computer system at the same time. Time-sharing systems and Internet servers can be classified as multi-user systems as they enable multiple-user access to a computer through the sharing of time. Single-user operating systems have only one user but may allow multiple programs to run at the same time.
Multi-tasking vs. single-tasking
A multi-tasking operating system allows more than one program to be running at the same time, from the point of view of human time scales. A single-tasking system has only one running program. Multi-tasking can be of two types: pre-emptive and co-operative. In pre-emptive multitasking, the operating system slices the CPU time and dedicates one slot to each of the programs. Unix-like operating systems such as Solaris and Linux support pre-emptive multitasking, as does AmigaOS. Cooperative multitasking is achieved by relying on each process to give time to the other processes in a defined manner. 16-bit versions of Microsoft Windows used cooperative multi-tasking. 32-bit versions of both Windows NT and Win9x, used pre-emptive multi-tasking. Mac OS prior to OS X used to support cooperative multitasking.
Distributed
A distributed operating system manages a group of independent computers and makes them appear to be a single computer. The development of networked computers that could be linked and communicate with each other gave rise to distributed computing. Distributed computations are carried out on more than one machine. When computers in a group work in cooperation, they make a distributed system.
Embedded
Embedded operating systems are designed to be used in embedded computer systems. They are designed to operate on small machines like PDAs with less autonomy. They are able to operate with a limited number of resources. They are very compact and extremely efficient by design. Windows CE and Minix 3 are some examples of embedded operating systems.
Based on the text above, judge the following item.
Since the first release of Windows NT, no version of Windows used cooperative multi-tasking.
Outcry as Chinese school makes iPads compulsory
Apple products are incredibly popular in China, but not everyone can afford them
A school in northern China has been criticised for enforcing iPad learning as part of its new curriculum, it's reported.
According to China Economic Daily, the Danfeng High School in Shaanxi province recently issued a notice saying that, “as part of a teaching requirement, students are required to bring their own iPad” when they start the new school year in September.
Staff told the paper that using an iPad would “improve classroom efficiency”, and that the school would managean internet firewall, so that parents would not have to worry about students using the device for other means.
However, China Economic Daily says that after criticism from parents, who felt that it would be an “unnecessary financial burden”, eadmaster Yao Hushan said that having an iPad was no longer a mandatory requirement. Mr Yao added that children who don't have a device could still enrol, but that he recommended students bring an iPad as part of a “process of promoting the digital classroom”.
The incident led to lively discussion on the Sina Weibo social media platform. “Those parents that can't afford one will have to sell a kidney!” one user quipped.
Others expressed concerns about the health implications of long-term electronic device use. “I worry about their vision,” one user said, and another said they would all become “short-sighted and have to wear glasses.”
But others felt that it was a good move in line with new modern ways of teaching. “They are affordable for the average family, one said, “they don't necessarily need to buy the latest model.”
Reporting by Kerry Allen
Taken from: www.bbc.com/news/blogs-news-from-elsewhere
Teachers at Danfeng High School want their students to bring their iPads to the classroom because:
Based on the text, decide whether the following statement about the author's position on the trivialization of personal relationships is right (C) or wrong (E).
He is non-committal about it, assuming this is an inescapable trend in contemporary American life.
Mark the correct alternative:
“Sarah often ______ until late in the library.”
To exercise or not to exercise ...
Are more young people overweight than in the past and do they exercise enough? We decided to ask four young people what they thought about this problem.
1- HEATHEROHURUOGU, aged 14 from Leeds, tells us what she thinks about keeping fit. “I know there have been a lot of stories in newspapers about how fat young people are getting, but we're not all sitting at home at a computer eating crisps and chocolate. Some of us do actually realise that keeping fit is quite important. If anybody should be blamed, I think schools and parents are the problem. At my school we have fewer hours of PE lessons than we used to have. The school has decided we need to spend more time preparing for our exams. My mum and dad trust me to take a bus home if I stay late at school for hockey training, but my friend Carly can't come because her parents work and they are worried about her travelling alone.”
2- OLIVER MCKENNA, aged 15, Edinburgh, sees things differently.
“I don't like organised sport or spending my time with guys skateboarding. I love computers – programming them, playing games on them, surfing the Internet and in my free time that's what I do. It's true that I do need to lose some weight, though. Next week, Mum's taking me to a doctor so we can ask about going on a diet. Dad wants me to join the gym he goes to, but I think it's a bit boring working out all the time. In fact, there's a computer game now called Wii. I'm thinking of getting it because you actually do the actions of the games – you know, things like swinging your arm to hit the ball in tennis. That'd be a good way to get some exercise!”
3- REECEWILKINS, aged 13, Swansea, has another view.
“I'm an active person and so are most of my friends. We all like to spend some time on our Nintendos, PlayStations or whatever – all young people enjoy computer games – but we also belong to football teams or some kind of sports club. We don't have to make an effort to be fit – young people like active games. No, our problem is that we eat too much rubbish. In fact, we drink a lot of bad things – sweet, fizzy drinks which are full of sugar and very unhealthy. Also, we all love fast food and often eat hamburgers and chips. If we ate better, I think most of us would lose the extra weight we have.”
4- HANK DARROW, aged 14, London, shares his opinions with us.
“I've spent the last four years trying to lose weight, and it hasn't been easy. My problem started when I was a baby – it wasn't really my fault. You see, I wasn't very interested in food, and so my mum made all kinds of delicious things to get me to eat. Of course, all those tasty foods were very fattening. My mum used to carry a bowl of food everywhere we went and would follow me around the house or playground trying to get me to eat just one more bite. Well, I got used to eating constantly and, by the time we all realised that I had gained too much weight, the damage had been done. Now I follow a special diet – it was hard at first, but once I got used to it, I actually like it.And I look and feel so much better – I don't want to go back to the way I was.”
Taken from: CHAPMAN, Joanne. Laser B1 +. Teacher's book. Macmillan, 2008.
Two young people say that they take a lot of exercise. Who are they?
A world of connections
Source: www.economist.com (Adapted)
Jan 28th, 2010
To sceptics all this talk of twittering, yammering and chattering smacks of another internet bubble in the making. They argue that even a huge social network such as Facebook will struggle to make money because fickle networkers will not stay in one place for long, pointing to the example of MySpace, which was once all the rage but has now become a shadow of its former self. Last year the site, which is owned by News Corp, installed a new boss and fi red 45% of its staff as part of a plan to revive its fortunes.
Within companies there is plenty of doubt about the benefits of online social networking in the office. A survey of 1,400 chief information officers conducted last year by Robert Half Technology, a recruitment firm, found that only one-tenth of them gave employees full access to such networks during the day, and that many were blocking Facebook and Twitter altogether. The executives’ biggest concern was that social networking would lead to social notworking, with employees using the sites to chat with friends instead of doing their jobs. Some bosses also fretted that the sites would be used to leak sensitive corporate information.
According to paragraph 2, the benefits of online social networking in the office are
Today, it seems that no one is uninformed about the environment. Every day the media shows us more evidence of climate change: extreme weather, melting ice-caps, and rising seas. Most of us believe we can do something to prevent global disaster, such as recycling, or conserving energy. It’s strange to recall that, before the 1960s, few people knew of the damagewe were doing to the planet. However, one scientist had already realized the dangers ahead. And today, this same man believes it may be too late to save the world. In the 1960s, Professor James Lovelock came up with one of the most famous theories on the environment – the GAIA hypothesis. According to this hypothesis, the earth’s atmosphere, soil, and oceans work in concert to provide an inhabitable environment for humans. If we disrupt these elements too severely, the earth may one day become uninhabitable. In the decade before he developed the Gaia hypothesis, Lovelock had created a device to detect atmospheric chemicals. With this device, he discovered particular chemicals, called CFCs. Later, other scientists discovered that these CFCs had damaged the earth’s ozone layer. Before then, we hadn’t knows about the hole in the ozone layer. By 1979, Lovelock had put forward his theories on the environment, in his first book. At that time, few people believe him. Before scientists such as Lovelock publicized environmental issues, the environment hadn’t been a very fashionable topic. In 2004, after many people had only just started to accept the reality of global warming, Lovelock became convinced that climate change was irreversible. In 2006, he wrote another book describing his latest ideas. In 40 years, Lovelock believes large parts of the world will be desert. We will need to make synthesized food to feed the world’s population. ‘Is Lovelock right this time too? Surely we can prevent this nightmare, if we all recycle, use renewable energy, and travel less by plane and car? Lovelock disagrees. According to him, it is now impossible to reverse global warming. We did not act quickly enough when we had the chance. Renewable energy and recycling are a case of too little, too late. Ultimately, if the human race is to survive, Lovelock believes we need to use more technology, not less. In his view, only nuclear energy can provide sufficient power for the planet. Now over 90 years old, Lovelock may not live to find out if he is right. But we will...
About Professor James Lovelock, it is correct to state that:
Microsoft has confirmed a security flaw in Windows 2000 that could allow attackers to execute malicious code via Windows Explorer and other programs. The flaw, involving a problem in the way the webvw.dll library validates document metadata, was disclosed earlier this week by security firm GreyMagic. The flaw could be exploited by distributing a malicious file which, when selected in Windows Explorer, could execute malicious script commands. More dangerously, an attacker could exploit the bug via a document on a remote SMB share, GreyMagic said. "Script commands that are injected in this manner will execute as soon as the malicious file is selected in Windows Explorer and will be executed in a trusted context, which means they will have the ability to perform any action the currently logged on user can perform," GreyMagic said in its advisory. "This includes reading, deleting and writing files, as well as executing arbitrary commands." Microsoft has confirmed that it is investigating the flaw, and as usual stated that it is not aware that any customers have been affected so far. The company has also criticised GreyMagic for posting proof-of-concept code along with its advisory. Stephen Toulouse of Microsoft's Security Response Center (MSRC), in a message posted on the Microsoft TechNet website, downplayed the danger posed by the flaw. "Significant user interaction would be required for an attacker to exploit this vulnerability," he wrote. Any attack would rely on Server Message Block (SMB) communication, which customers should block at the firewall level as a best practice, Toulouse said. No patch exists, but users can protect themselves by disabling the "Web view" option in Windows Explorer, Microsoft said. The company said it may patch the bug once its investigation is complete. The flaw affects Windows 2000 Professional, Server and Advanced Server versions, GreyMagic said. The affected library, webvw.dll, is used in displaying information in Windows Explorer's preview pane, which is enabled by default in Windows 2000 systems. An input-validation bug means an attacker could inject script commands into the "author" metadata field of a document, which could be executed when the metadata is processed by webvw.dll. Other applications using the library are also affected, GreyMagic said. "The malicious file does not need to be executed in order to activate the exploit, double-clicking is not required," the firm said in its advisory. "The exploitation takes place as soon as the file is selected." GreyMagic said it first notified Microsoft of the flaw on 18 January.
(http://www.techworld.com/security/news/index.cfm?NewsID=3543)
Segundo o texto, a falha em questão
Regarding the language underlined in the text, it can be said that
Principies for an effective informatics curriculum
The committee performed a comprehensive review of the considerabie existing material on building informatics curricula, including among many others the (UK) Royal Society report, the CSPrinciples site, the Computing at Schools Initiative, and the work of the CSTA. Two major conclusions follow from that review.
The first is the sheer number of existing experiences demonstrating that it is indeed possible to teach informatics successfully in primary and secondary education. The second conclusion is in the form of two core principies for such curricula. Existing experiences use a wide variety of approaches; there is no standard curriculum yet, and it was not part of the Committee's mission to define such a standard informatics curriculum for the whole of Europe. The committee has found, however, that while views diverge on the details, a remarkable consensus exists among experts on the basics of what a school informatics curriculum should (and should not) include. On the basis of that existing work, the Committee has identified two principies: leverage students' creativity, emphasize quality.
Leverage student creativity
A powerful aid for informatics teaching is the topic's potential for stimulating students; creativity. The barriers to innovation are often lower than in other disciplines; the technical equipment (computers) is ubiquitous and considerably less expensive. Opportunities exist even for a beginner: with proper guidance, a Creative student can quickly start writing a program or a Web Service, see the results right away, and make them available to numerous other people. Informatics education should draw on this phenomenon and channel the creativity into useful directions, while warning students away from nefarious directions such as destructive "hacking". The example of HFOSS (Humanitarian Free and Open Software Systems) shows the way towards constructive societal contributions based on informatics.
Informatics education must not just dwell on imparting information to students. It must draw attention to aspects of informatics that immediately appeal to young students, to encourage interaction, to bring abstract concepts to life through visualization and animation; a typical application of this idea is the careful use of (non- violent) games.
Foster quality
Curious students are always going to learn some IT and in particular some programming outside of informatics education through games scripting, Web site development, or adding software components to social networks. Informatics education must emphasize quality, in particular software quality, including the need for correctness (proper functioning of software), for good user interfaces, for taking the needs of users into consideration including psychological and social concerns. The role of informatics education here is:
• To convey the distinction between mere "coding" and software development as a constructive activity based on scientific and engineering principies.
• To dispel the wrong image of programming as an activity for "nerds" and emphasize its human, user-centered aspects, a focus that helps attract students of both genders.
Breaking the teacher availability deadlock
An obstacle to generalizing informatics education is the lack of teachers. It follows from a chicken-and-egg problem: as long as informatics is not in the curriculum, there is Iittle incentive to educate teachers in the subject; as long as there are no teachers, there is Iittle incentive to introduce the subject.
To bring informatics education to the levei that their schools deserve, European countries will have to take both long-term and short-term initiatives:
• Universities, in particular through their informatics departments, must put in place comprehensive programs to train informatics teachers, able to teach digital literacy and informatics under the same intellectual standards as in mathematics, physics and other Sciences.
• The current chicken-and-egg situation is not an excuse for deferring the start of urgently needed efforts. Existing experiences conclusively show that it is possible to break the deadlock. For example, a recent New York Times article explains how IT companies such as Microsoft and Google, conscious of the need to improve the state of education, allow some of their most committed engineers and researchers in the US to pair up with high school teachers to teach computational thinking. In Russia, it is common for academics who graduated from the best high schools to go back to these schools, also on a volunteer basis, and help teachers introduce the concepts of modern informatics. Ali these efforts respect the principie that outsiders must always be paired with current high-school teachers.
(Excerpt of ' Report ofthe joint Informatics Europe & ACM Europe Working Group on Informatics Education April 2013')
According to the text, it is correct to say that:
I) Conceber o letramento em língua inglesa a partir da interação com uma língua estrangeira demanda experimentar essa língua por meio de práticas sociais que integrem as habilidades (leitura, escrita, compreensão e produção oral) de forma que o aluno se constitua como enunciador na nova língua sem perder sua inscrição discursiva na língua materna. Ao nos situarmos nesse âmbito teórico, entendemos o processo de ensino-aprendizagem como uma troca linguística em que o indivíduo social fala de si para se constituir numa língua outra, expressando percepções, sua visão de mundo e inscrições ideológicas, balizadas pelo conflito/confronto de culturas e práticas discursivas.
II) De acordo com a teoria bakhtiniana, a língua não se transmite, ela dura e perdura sob a forma de um processo evolutivo contínuo. Os indivíduos não recebem a língua pronta para ser usada, eles adentram na corrente da comunicação verbal, ou melhor, apenas quando imergem nessa corrente é que sua consciência desperta e começa a atuar. É apenas no processo de aquisição de uma língua estrangeira que a consciência já constituída (devido à língua materna) se confronta com uma língua pronta, que só lhe resta assimilar.
III) Uma interação verbal se processa enquanto um ato de linguagem em que os indivíduos sociais entrecruzam seus mundos possíveis, balizados pela ótica de um processo de ensino-aprendizagem. Nessa ótica se incluem referências linguísticas de diferentes níveis de interlíngua, referências sociais de diferentes ethé de linguagem, referências patêmicas de diferentes hierarquias culturais, referências filosóficas de diferentes campos e visões de conhecimentos, entre outros fatores. Isso nos remete a uma compreensão desse ato de linguagem não como atos responsáveis e sim voluntários.
A resposta CORRETA é: