Foram encontradas 120 questões.
How to reduce your sugar intake
Begin by replacing sugar in drinks with saccharin or aspartame. Drink low-calorie soft drinks. This means that you will get an immediate reduction in calorie intake without having to change your taste for sweet things.
Stop buying biscuits, sweets and chocolates, and choose fruit and vegetables _________. If you must have cakes, make your own, using half the quantity of sugar given in standard recipes.
Watch out for what you eat!
(Adapted from The Sunday Times ABC Diet and Body Plan)
GLOSSARY
intake – ingestão
intake – ingestão
According to the text, people who want to reduce their sugar should
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Assinale a alternativa que apresenta em destaque o complemento nominal.
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Dear Maggie,
My son just announced that he is going away to school. Bobby is a good student, and I am very proud of him. Any college would be lucky to have him!
My only concern is that he’s never lived away from home before. Will he be able to take care of _______?
What if there’s an emergency?
Give me some advice so that I can relax!
Doubtful Dad
Based on the letter, all alternatives are correct, except:
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The US space organization, NASA developed and built the first space shuttle. The shuttle was the first rocket to fly into space, come back to earth and fly again. The first shuttle to fly in space was Columbia. It took off on the 12th April 1981. In January 1986 the shuttle Challenger exploded at take-off. Everyone on the shuttle died. This accident slowed down the shuttle programme for the next six years. A new shuttle, Endeavor, replaced Challenger in May 1992.
On 25th April 1990, NASA used the shuttle Discovery to put the Hubble Space Telescope into space at a distance of 512 kilometres from the earth. Hubble travels around the earth and sends back photos of the stars and planets.
GLOSSARY
NASA – National Aeronautics and Space Administration
NASA – National Aeronautics and Space Administration
The nouns that correspond to the verbs in bold type, in the text, are, respectively:
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Unbeetable: The humble root which fights cancer
and lowers blood pressure
and lowers blood pressure
With its sweet, earthy taste and ruby-red interior, beetroot is a favourite of foods, but there’s far more to it than that.
The majority of beetroot’s benefits stem from the unusually high level of nitrates it contains.
Nitrates have suffered a bad reputation because of their use as a food additive. However, recent studies have shown that nitrates in beetroot lower blood pressure.
A study carried out in 2010 also found that the _____the blood pressure, the _____ the drop observed. If beetroot juice is consumed widely, there will be reduction in death from cardiovascular disease.
Among other benefits, beetroots may also slow progression of dementia and growth of tumours.
The title of the article reveals that beetroots are
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Considerando que a figura representa um conjunto de vetores sobre um quadriculado, assinale a alternativa que indica o módulo do vetor resultante desse conjunto de vetores.

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Uma espira circular, de raio igual a 10 cm, percorrida por uma corrente elétrica de intensidade igual a 50 mA produz, no centro da espira, um vetor indução magnética de intensidade B. Para se obter um valor igual a 2B, mantendo constante a intensidade de corrente elétrica e o mesmo meio (!$ μ_0 !$), é necessário que o novo raio da espira seja, em cm, de:
Dado: !$ μ_0 = 4 \pi.10^{-7} T.m/_A !$
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Se !$ i !$ é a unidade imaginária, pode-se afirmar que !$ i^7 !$ é igual a
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Dados sen a = x, cos a = y, sen b = z e cos b = w, então sen (a + b) é igual a
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Se x é um arco do terceiro quadrante tal que !$ tg x = { \large 2 \over 3} !$, o valor de sen x é
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