Choose the alternative that presents the present progressiv...

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                                      What causes hunger?

      The world produces enough to feed the entire global population of 7 billion people. And yet, one person in eight on the planet goes to bed hungry each night. In some countries, one child in three is underweight. Why does hunger exist? There are many reasons for the presence of hunger in the world and they are often interconnected. Here are six that we think are important.  


      Poverty trap

      People living in poverty cannot afford nutritious food for themselves and their families. This makes them weaker and less able to earn the money that would help them escape poverty and hunger. This is not just a day-to-day problem: when children are chronically malnourished, or ‘stunted’, it can affect their future income, condemning them to a life of poverty and hunger. In developing countries, farmers often cannot afford seeds, so they cannot plant the crops that would provide for their families. They may have to cultivate crops without the tools and fertilizers they need. Others have no land or water or education. In short, the poor are hungry and their hunger traps them in poverty. 


      Lack of investment in agriculture

      Too many developing countries lack key agricultural infrastructure, such as enough roads, warehouses and irrigation. The results are high transport costs, lack of storage facilities and unreliable water supplies. All conspire to limit agricultural yields and access to food. Investments in improving land management, using water more efficiently and making more resistant seed types available can bring big improvements. Research by the UN Food and Agriculture Organization shows that investment in agriculture is five times more effective in reducing poverty and hunger than investment in any other sector. 


      Climate and weather

      Natural disasters such as floods, tropical storms and long periods of drought are on the increase – with calamitous consequences for the hungry poor in developing countries. Drought is one of the most common causes of food shortages in the world. In 2011, recurrent drought caused crop failures and heavy livestock losses in parts of Ethiopia, Somalia and Kenya. In 2012 there was a similar situation in the Sahel region of West Africa. In many countries, climate change is exacerbating  already adverse natural conditions. Increasingly, the world’s fertile farmland is under threat from erosion, salination and desertification. Deforestation by human hands accelerates the erosion of land which could be used for growing food.


      War and displacement

      Across the globe, conflicts consistently disrupt farming and food production. Fighting also forces millions of people to flee their homes, leading to hunger emergencies as the displaced find themselves without the means to feed themselves. The conflict in Syria is a recent example. In war, food sometimes becomes a weapon. Soldiers will starve opponents into submission by seizing or destroying food and livestock and systematically wrecking local markets. Fields are often mined and water wells contaminated, forcing farmers to abandon their land. Ongoing conflict in Somalia and the has contributed significantly to the level of hunger in the two countries. By comparison, hunger is on the retreat in more peaceful parts of Africa such as Ghana and Rwanda.  


      Unstable markets

      In recent years, the price of food products has been very unstable. Roller-coaster food prices make it difficult for the poorest people to access nutritious food consistently. The poor need access to adequate food all year round. Price spikes may temporarily put food out of reach, which can have lasting consequences for small children. When prices rise, consumers often shift to cheaper, less-nutritious foods, heightening the risks of micronutrient deficiencies and other forms of malnutrition.  


      Food wastage

      One third of all food produced (1.3 billion tons) is never consumed. This food wastage represents a missed opportunity to improve global food security in a world where one in 8 is hungry. Producing this food also uses up precious natural resources that we need to feed the planet. Each year, food that is produced but not eaten guzzles up a volume of water equivalent to the annual flow of Russia’s Volga River. Producing this food also adds 3.3 billion tons of greenhouse gases to the atmosphere, with consequences for the climate and, ultimately, for food production. 


Choose the alternative that presents the present progressive form of the sentence below.


“Deforestation by human hands accelerates the erosion of land which could be used for growing food.”

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Escolha a alternativa que apresenta a forma do presente progressivo da frase abaixo.

“Deforestation by human hands accelerates the erosion of land which could be used for growing food."  (O desmatamento pelas mãos humanas acelera a erosão da terra que poderia ser usada para o cultivo de alimento.)

Bem, a forma do presente progressivo é a seguinte:
verbo "to be" conjugado no presente simples ("am, are ou is") + o verbo principal da frase acrescido de "ING".
No caso da frase acima, o verbo principal é "accelerates", que está conjugado no presente simples, na terceira pessoa do singular, o que nos leva a usar a forma "IS" do verbo "to be" para formar o presente progressivo e acrescentar "ING" a "accelerates" que é o verbo principal e ter "accelerating". Logo, procuramos uma frase que contenha "IS ACCELERATING" que é a forma do presente progressivo da frase dada no item.

A) accelerated - passado simples - afirmativa
B) didn't accelerate - passado simples - negativa
C) is accelerating - presente progressivo - afirmativa - a nossa resposta
D) has accelerated - present perfect - afirmativa
E) was accelerated - passado simples na voz passiva - afirmativa

Gabarito: C

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accelerating is the correct present progressive form

The PRESENT PROGRESSIVE TENSE indicates continuing action, something going on now. This tense is formed with the helping "to be" verb, in the present tense, plus the present participle of the verb (with an -ing ending): "I am buying all my family's Christmas gifts early this year. She is working through the holiday break. Dierdre is being a really good girl in these days before Christmas".

The present progressive can suggest that an action is going to happen in the future, especially with verbs that convey the idea of a plan or of movement from one place or condition to another: "The team is arriving in two hours. He's moving to Portland this summer." Because the present progressive can suggest either the present or the future, it is usually modified by adverbs of time.

FONTE: http://grammar.ccc.commnet.edu/grammar/tenses/present_progressive.htm

 

c-

present progressive - present continuous. Present continuous indica uma ação temporaria que esta em andamento agora. É diferente do simple present, o qual é usado para ações rotineiras ou fatos. (e.g.: The char lady leaves the broom by the doorstop every morning. Water boils when subject to 100 C° temperatures). 

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