Questões de Concurso

Foram encontradas 523 questões

Resolva questões gratuitamente!

Junte-se a mais de 4 milhões de concurseiros!

Q2342564 Inglês
The sentence with the correct possessive pronoun is: 
Alternativas
Q2342562 Inglês
The sentence with a correct relative clause is:
Alternativas
Q2341033 Inglês
Text 1A1-I


        Hydrogen is viewed as a promising alternative to fossil fuel, but the methods used to make it either generate too much carbon dioxide or are too expensive. Rice University researchers have found a way to harvest hydrogen from plastic waste using a low-emission method that could more than pay for itself.

           By comparison, “green” hydrogen ⎯ produced using renewable energy sources to split water into its two component elements ⎯ costs roughly US$ 5 for just over two pounds. Though cheaper, most of the nearly 100 million tons of hydrogen used globally in 2022 was derived from fossil fuels, its production generating roughly 12 tons of carbon dioxide per ton of hydrogen.

          The researchers exposed plastic waste samples to rapid flash Joule, bringing their temperature up to 3100 Kelvin. “We demonstrated that we are able to recover up to 68% of that atomic hydrogen as gas with a 94% purity,” Kevin Wyss said. “I hope that this work will allow for the production of clean hydrogen from waste plastics, possibly solving major environmental problems like plastic pollution and the greenhouse gas-intensive production of hydrogen by steam-methane reforming.”


Internet: <news.rice.edu> (adapted).

Based on text 1A1-I, judge the following item.



The pronoun “their” (first sentence of the third paragraph) refers back to “plastic waste samples”.


Alternativas
Q2337764 Inglês
Text 2


Communicative Language Teaching aims broadly to apply the theoretical perspective of the Communicative Approach by making communicative competence the goal of language teaching and by acknowledging the interdependence of language and communication. What this looks like in the classroom may depend on how the tenets are interpreted and applied. Nevertheless, we will follow our usual way of und erstanding the theor y and ussocia rcd practices by visiting a class in which a form of Communicative Language Teaching is being practiced. The class we will visit is one being conducted for adult immigrants to Canada . These twenty people have lived in Canada for two years and are at a high-intermediate level of English proficiency. They meet two evenings a week for two hours each class.


LARSEN-FREEMAN, Diane. Techniques and Principles in Language Teaching. 3rd ed. Oxford ; New York: Oxford University Press, 2011.
What alternative presentes a wrong use of the possessive case?
Alternativas
Q2334622 Inglês

Julgue o item que se segue.


The indefinite article is correctly used in: an umbrella; an hour; an art book. 
Alternativas
Respostas
21: B
22: C
23: C
24: B
25: C