Pular para o conteúdo

Banco de questões

Todas as questões do ENEM

Use os filtros para chegar às questões que interessam. Cada resultado abre em uma página própria com enunciado, alternativas e gabarito.

  • 58.062 questões
  • 160 instituições
  • 23 anos de prova

Resultados: 58.062 questões

Página 1.028 de 2.904

  • Ciências Humanas

    História

    Nas décadas de 1860 e 1870, as escolas criadas ou recriadas, em geral, previam a presença de meninas, mas se atrapalhavam na hora de colocar a ideia em prática. Na província do Rio de Janeiro, várias tentativas foram feitas e todas malsucedidas: colocar rapazes e moças em dias alternados e, em 1874, em prédios separados. Para complicar, na Assembleia, um grupo de deputados se manifestava contrário ao desperdício de verbas para uma instituição “desnecessária”, e a sociedade reagia contra a ideia de coeducação.

    VILLELA, H. O. S. O mestre-escola e a professora. In: LOPES, E. M. T.; FARIA FILHO, L. M.; VEIGA, C. G. (Org.). 500 anos de educação no Brasil. Belo Horizonte: Autêntica, 2003 (adaptado).


    As dificuldades retratadas estavam associadas ao seguinte aspecto daquele contexto histórico:

    Escolha uma alternativa para a questão 5a73a9e7-0e
  • Linguagens

    Português

    Imagem da questão de Português, Universidade Federal do Ceará 2011, Sintaxe

    Adaptado de SANT’ANNA, Affonso Romano de. Melhores crônicas. São Paulo. Global, 2003, pp. 52-54 

    O termo “contudo” (linha 36) pode ser substituído, sem que se altere o sentido do texto, por:
    Escolha uma alternativa para a questão 5a74c987-f8
  • Ciências da Natureza

    Biologia

    Considerando que todos os seres vivos necessitam de uma fonte de carbono para construir suas moléculas orgânicas, a diferença essencial entre os autotróficos e os heterotróficos, respectivamente, é usar
    Escolha uma alternativa para a questão 5a75209e-b7
  • Linguagens

    Espanhol

    Imagem da questão de Espanhol, UNIR 2010, Interpretação de Texto | Comprensión de Lectura

    Sobre o trecho algunos se empecinen en poner etiquetas individuales a los clubes o las selecciones (linhas 3 e 4), marque V para as afirmativas verdadeiras e F para as falsas.

    ( ) Significa que clubes e seleções insistem em confiar seus resultados a apenas um atleta.

    ( ) Afirma que o futebol é um esporte essencialmente coletivo.

    ( ) A expressão grifada corresponde à frase poner nombre propio a los estadios (linhas 10 e 11).

    ( ) O sentido da expressão grifada contrapõe-se a uno han sido 11 (linha 9).

    Assinale a sequência correta.

    Escolha uma alternativa para a questão 5a757a3f-eb
  • Linguagens

    Inglês

    Argentina defaults – Eighth time unlucky

    Cristina Fernández argues that her country's latest default is different. She is missing the point.

    Aug 2nd 2014

         ARGENTINA'S first bond, issued in 1824, was supposed to have had a lifespan of 46 years. Less than four years later, the government defaulted. Resolving the ensuing stand-off with creditors took 29 years. Since then seven more defaults have followed, the most recent this week, when Argentina failed to make a payment on bonds issued as partial compensation to victims of the previous default, in 2001.

         Most investors think they can see a pattern in all this, but Argentina’s president, Cristina Fernández de Kirchner, insists the latest default is not like the others. Her government, she points out, had transferred the full $539m it owed to the banks that administer the bonds. It is America’s courts (the bonds were issued under American law) that blocked the payment, at the behest of the tiny minority of owners of bonds from 2001 who did not accept the restructuring Argentina offered them in 2005 and again in 2010. These “hold-outs”, balking at the 65% haircut the restructuring entailed, not only persuaded a judge that they should be paid in full but also got him to freeze payments on the restructured bonds until Argentina coughs up.

        Argentina claims that paying the hold-outs was impossible. It is not just that they are “vultures" as Argentine officials often put it, who bought the bonds for cents on the dollar after the previous default and are now holding those who accepted the restructuring (accounting for 93% of the debt) to ransom. The main problem is that a clause in the restructured bonds prohibits Argentina from offering the hold-outs better terms without paying everyone else the same. Since it cannot afford to do that, it says it had no choice but to default.

         Yet it is not certain that the clause requiring equal treatment of all bondholders would have applied, given that Argentina would not have been paying the hold-outs voluntarily, but on the courts' orders. Moreover, some owners of the restructured bonds had agreed to waive their rights; had Argentina made a concerted effort to persuade the remainder to do the same, it might have succeeded. Lawyers and bankers have suggested various ways around the clause in question, which expires at the end of the year. But Argentina's government was slow to consider these options or negotiate with the hold-outs, hiding instead behind indignant nationalism.

         Ms Fernández is right that the consequences of America's court rulings have been perverse, unleashing a big financial dispute in an attempt to solve a relatively small one. But hers is not the first government to be hit with an awkward verdict. Instead of railing against it, she should have tried to minimise the harm it did. Defaulting has helped no one: none of the bondholders will now be paid, Argentina looks like a pariah again, and its economy will remain starved of loans and investment.

         Happily, much of the damage can still be undone. It is not too late to strike a deal with the hold-outs or back an ostensibly private effort to buy out their claims. A quick fix would make it easier for Argentina to borrow again internationally. That, in turn, would speed development of big oil and gas deposits, the income from which could help ease its money troubles.

       More important, it would help to change perceptions of Argentina as a financial rogue state. Over the past year or so Ms Fernández seems to have been trying to rehabilitate Argentina's image and resuscitate its faltering economy. She settled financial disputes with government creditors and with Repsol, a Spanish oil firm whose Argentine assets she had expropriated in 2012. This week's events have overshadowed all that. For its own sake, and everyone else's, Argentina should hold its nose and do a deal with the hold-outs.

    (http://www.economist.com/news/leaders/21610263. Adapted)


    According to the sixth paragraph,
    Escolha uma alternativa para a questão 5a768bed-3c
  • Matemática

    Matemática

    Os pontos U e V dividem respectivamente os lados XZ e XY do triângulo XYZ em segmentos que satisfazem às igualdades XU/UZ = 2 e XV/VY = 2/3. Se a medida da área do triângulo XVU é 8 m2 , então a medida, em m2 , da área do triângulo XYZ é
    Escolha uma alternativa para a questão 5a769ac2-b7
  • Ciências Humanas

    Sociologia

    O justo e o bem são complementares no sentido de que uma concepção política deve apoiar-se em diferentes ideias do bem. Na teoria da justiça como equidade, essa condição se expressa pela prioridade do justo. Sob sua forma geral, esta quer dizer que as ideias aceitáveis do bem devem respeitar os limites da concepção política de justiça e nela desempenhar um certo papel.

    RAWLS, J. Justiça e democracia. São Paulo: Martins Fontes, 2000 (adaptado).


    Segundo Rawls, a concepção de justiça legisla sobre ideias do bem, de forma que

    Escolha uma alternativa para a questão 5a76f453-0e
  • Ciências da Natureza

    Biologia

    Considere os seguintes hormônios:

    1. Glucagon
    2.Adrenalina
    3.Somatotrofina
    4.Noradrenalina
    5.Insulina


    As glândulas responsáveis pela secreção desses hormônios são respectivamente:

    Escolha uma alternativa para a questão 5a785aa4-b7
  • Ciências Humanas

    História

    Imagem da questão de História, ENEM 2018, História do Brasil


    Considerando o funcionamento do regime democrático, o episódio retratado na imagem está associado ao(à)

    Escolha uma alternativa para a questão 5a7a310f-0e
  • Matemática

    Matemática

    Se x ∈ R, o maior inteiro menor do que ou igual a x é denotado por [x]. Se f, g: R → R são funções definidas por f(x) = cosx e g(x) = [x] , então a interseção do gráfico de f com o gráfico de g é um conjunto
    Escolha uma alternativa para a questão 5a7a56cb-b7
  • Linguagens

    Inglês

    Argentina defaults – Eighth time unlucky

    Cristina Fernández argues that her country's latest default is different. She is missing the point.

    Aug 2nd 2014

         ARGENTINA'S first bond, issued in 1824, was supposed to have had a lifespan of 46 years. Less than four years later, the government defaulted. Resolving the ensuing stand-off with creditors took 29 years. Since then seven more defaults have followed, the most recent this week, when Argentina failed to make a payment on bonds issued as partial compensation to victims of the previous default, in 2001.

         Most investors think they can see a pattern in all this, but Argentina’s president, Cristina Fernández de Kirchner, insists the latest default is not like the others. Her government, she points out, had transferred the full $539m it owed to the banks that administer the bonds. It is America’s courts (the bonds were issued under American law) that blocked the payment, at the behest of the tiny minority of owners of bonds from 2001 who did not accept the restructuring Argentina offered them in 2005 and again in 2010. These “hold-outs”, balking at the 65% haircut the restructuring entailed, not only persuaded a judge that they should be paid in full but also got him to freeze payments on the restructured bonds until Argentina coughs up.

        Argentina claims that paying the hold-outs was impossible. It is not just that they are “vultures" as Argentine officials often put it, who bought the bonds for cents on the dollar after the previous default and are now holding those who accepted the restructuring (accounting for 93% of the debt) to ransom. The main problem is that a clause in the restructured bonds prohibits Argentina from offering the hold-outs better terms without paying everyone else the same. Since it cannot afford to do that, it says it had no choice but to default.

         Yet it is not certain that the clause requiring equal treatment of all bondholders would have applied, given that Argentina would not have been paying the hold-outs voluntarily, but on the courts' orders. Moreover, some owners of the restructured bonds had agreed to waive their rights; had Argentina made a concerted effort to persuade the remainder to do the same, it might have succeeded. Lawyers and bankers have suggested various ways around the clause in question, which expires at the end of the year. But Argentina's government was slow to consider these options or negotiate with the hold-outs, hiding instead behind indignant nationalism.

         Ms Fernández is right that the consequences of America's court rulings have been perverse, unleashing a big financial dispute in an attempt to solve a relatively small one. But hers is not the first government to be hit with an awkward verdict. Instead of railing against it, she should have tried to minimise the harm it did. Defaulting has helped no one: none of the bondholders will now be paid, Argentina looks like a pariah again, and its economy will remain starved of loans and investment.

         Happily, much of the damage can still be undone. It is not too late to strike a deal with the hold-outs or back an ostensibly private effort to buy out their claims. A quick fix would make it easier for Argentina to borrow again internationally. That, in turn, would speed development of big oil and gas deposits, the income from which could help ease its money troubles.

       More important, it would help to change perceptions of Argentina as a financial rogue state. Over the past year or so Ms Fernández seems to have been trying to rehabilitate Argentina's image and resuscitate its faltering economy. She settled financial disputes with government creditors and with Repsol, a Spanish oil firm whose Argentine assets she had expropriated in 2012. This week's events have overshadowed all that. For its own sake, and everyone else's, Argentina should hold its nose and do a deal with the hold-outs.

    (http://www.economist.com/news/leaders/21610263. Adapted)


    In the excerpt from the last paragraph – ... perceptions of Argentina as a financial rogue state – the expression financial rogue state implies a country which is
    Escolha uma alternativa para a questão 5a7d3394-3c
  • Ciências da Natureza

    Biologia

    A digestão transforma as moléculas grandes e complexas dos alimentos em outras, pequenas, simples e solúveis. O alimento degradado é o provedor da energia necessária a todo trabalho realizado pelo organismo, inclusive o da digestão.
    Partindo-se da premissa de que esse mecanismo (mecânico e químico) é imprescindível à vida, assinale a opção correta quanto ao processo da fisiologia da digestão humana.
    Escolha uma alternativa para a questão 5a7d5015-b7
  • Ciências Humanas

    História

    Em Utopia, tudo é comum a todos. A distribuição dos bens lá não é um problema, não se vê nem pobre nem mendigo e, embora ninguém tenha nada de seu, todos são ricos. Haverá maior riqueza do que levar uma existência alegre e pacífica, livre de ansiedades e sem precisar se preocupar com a subsistência?

    MORUS, T. Utopia. Brasília: UnB, 2004.


    Retirado da obra de Thomas Morus, escrita no século XVI, esse trecho influenciou movimentos sociais do século XIX que lutaram para

    Escolha uma alternativa para a questão 5a7daa9b-0e
  • Linguagens

    Português

    Imagem da questão de Português, Universidade Federal do Ceará 2011, Interpretação de Textos

    Adaptado de SANT’ANNA, Affonso Romano de. Melhores crônicas. São Paulo. Global, 2003, pp. 52-54 

    A expressão “um arco-íris na alma” (linha 36) sugere que as “pessoas” (linha 35) são:
    Escolha uma alternativa para a questão 5a7dbf5c-f8
  • Matemática

    Matemática

    Um cone circular reto está inscrito em uma esfera, isto é, o vértice do cone e a circunferência que delimita sua base estão sobre a esfera. Se a medida do raio da esfera é 3 m e se a medida da altura do cone é igual a 2/3 da medida do diâmetro da esfera, então o volume do cone, em m3 , é
    Escolha uma alternativa para a questão 5a7e3472-b7
  • Ciências Humanas

    Geografia

    Imagem da questão de Geografia, ENEM 2018, Integração Regional


    No planejamento das ações governamentais, a segunda forma de regionalização apresenta a vantagem de

    Escolha uma alternativa para a questão 5a811af8-0e
  • Ciências da Natureza

    Biologia

    Cerca de 90% dos pacientes com casos de câncer na próstata, mama, pulmão e intestinal que sofrem metástase, quando o câncer se espalha, desenvolvem resistência à quimioterapia. O tratamento para estes casos é feito com intervalos, para que o corpo do paciente possa se recuperar da toxicidade da quimioterapia. Mas estes intervalos permitem que as células do tumor se recuperem e desenvolvam a resistência. No estudo dos pesquisadores do Centro de Pesquisa do Câncer Fred Hutchinson, em Seattle, analisaram células fibroblásticas, que normalmente têm um papel muito importante na recuperação em casos de feridas e na produção de colágeno, o principal componente de tecidos de ligação, como os tendões, por exemplo. A quimioterapia gera danos no DNA, o que faz com que estas células produzam uma quantidade de uma proteína chamada WNT16B trinta vezes maior do que deveriam. Esta proteína é o “combustível” que faz com que as células cancerosas cresçam e invadam tecidos que cercam o tumor além de causar a resistência à quimioterapia. Já se sabia que esta proteína estava envolvida no desenvolvimento do câncer, mas não na resistência ao tratamento. (BBC–Brasil, 2012).

    Essa é uma importante informação científica. No entanto, estudos anteriores foram muito necessários, como o mecanismo da síntese do colágeno, por exemplo. Sendo assim, assinale a opção que descreve corretamente esse mecanismo.
    Escolha uma alternativa para a questão 5a81bbf0-b7
  • Linguagens

    Inglês

    Argentina defaults – Eighth time unlucky

    Cristina Fernández argues that her country's latest default is different. She is missing the point.

    Aug 2nd 2014

         ARGENTINA'S first bond, issued in 1824, was supposed to have had a lifespan of 46 years. Less than four years later, the government defaulted. Resolving the ensuing stand-off with creditors took 29 years. Since then seven more defaults have followed, the most recent this week, when Argentina failed to make a payment on bonds issued as partial compensation to victims of the previous default, in 2001.

         Most investors think they can see a pattern in all this, but Argentina’s president, Cristina Fernández de Kirchner, insists the latest default is not like the others. Her government, she points out, had transferred the full $539m it owed to the banks that administer the bonds. It is America’s courts (the bonds were issued under American law) that blocked the payment, at the behest of the tiny minority of owners of bonds from 2001 who did not accept the restructuring Argentina offered them in 2005 and again in 2010. These “hold-outs”, balking at the 65% haircut the restructuring entailed, not only persuaded a judge that they should be paid in full but also got him to freeze payments on the restructured bonds until Argentina coughs up.

        Argentina claims that paying the hold-outs was impossible. It is not just that they are “vultures" as Argentine officials often put it, who bought the bonds for cents on the dollar after the previous default and are now holding those who accepted the restructuring (accounting for 93% of the debt) to ransom. The main problem is that a clause in the restructured bonds prohibits Argentina from offering the hold-outs better terms without paying everyone else the same. Since it cannot afford to do that, it says it had no choice but to default.

         Yet it is not certain that the clause requiring equal treatment of all bondholders would have applied, given that Argentina would not have been paying the hold-outs voluntarily, but on the courts' orders. Moreover, some owners of the restructured bonds had agreed to waive their rights; had Argentina made a concerted effort to persuade the remainder to do the same, it might have succeeded. Lawyers and bankers have suggested various ways around the clause in question, which expires at the end of the year. But Argentina's government was slow to consider these options or negotiate with the hold-outs, hiding instead behind indignant nationalism.

         Ms Fernández is right that the consequences of America's court rulings have been perverse, unleashing a big financial dispute in an attempt to solve a relatively small one. But hers is not the first government to be hit with an awkward verdict. Instead of railing against it, she should have tried to minimise the harm it did. Defaulting has helped no one: none of the bondholders will now be paid, Argentina looks like a pariah again, and its economy will remain starved of loans and investment.

         Happily, much of the damage can still be undone. It is not too late to strike a deal with the hold-outs or back an ostensibly private effort to buy out their claims. A quick fix would make it easier for Argentina to borrow again internationally. That, in turn, would speed development of big oil and gas deposits, the income from which could help ease its money troubles.

       More important, it would help to change perceptions of Argentina as a financial rogue state. Over the past year or so Ms Fernández seems to have been trying to rehabilitate Argentina's image and resuscitate its faltering economy. She settled financial disputes with government creditors and with Repsol, a Spanish oil firm whose Argentine assets she had expropriated in 2012. This week's events have overshadowed all that. For its own sake, and everyone else's, Argentina should hold its nose and do a deal with the hold-outs.

    (http://www.economist.com/news/leaders/21610263. Adapted)


    The last paragraph implies that
    Escolha uma alternativa para a questão 5a82607f-3c
  • Linguagens

    Português

    Imagem da questão de Português, Universidade Federal do Ceará 2011, Denotação e Conotação

    Adaptado de SANT’ANNA, Affonso Romano de. Melhores crônicas. São Paulo. Global, 2003, pp. 52-54 

    Assinale a alternativa em que o adjetivo está empregado em linguagem figurada.
    Escolha uma alternativa para a questão 5a83604a-f8