Question

1. Complete the text using the correct form of the verbs in parentheses (first conditional). Mankind has negatively altered the climate of our planet by producing high concentrations of CO2 (carbon dioxide) during the last 100 years. As a result, global warming has appeared, and rising temperatures are common these days. If the government (a) __________ (not use) alternative ways to produce energy, the planet (b) ___________ (face) a terrible chain of weather changes. If the warming effect (c) ___________ (continue) to intensify, glaciers and ice near the poles (d) ___________ (melt). If ice (e) ___________ (melt), species such as the polar bear and de Adélie penguin (f) _____________ (disappear). If glaciers (g) ___________ (melt), the sea level (h) ___________ (rise). If the sea level (i) ___________ (rise), many places in the world will become flooded. If many places become flooded, millions of people (j) ___________ (lose) their homes and numerous migrations will take place. What can we do to stabilize C02 concentrations? These are some ideas: • If you (k) ___________ (buy) fluorescent light bulbs, they (l) ___________ (use) 70% less energy than regular bulbs. • If we (m) ___________ (plant) a tree, it (n) ___________ (absorb) one ton of C02 over its lifetime. • If she (o) ___________ (take) public transportation, (p) ___________ (walk), or (q) ___________ (ride) her bicycle, she will (r) ___________ (save) gasoline. Keep in mind that one gallon of gasoline burned releases 20 pounds of C02. According to Al Gore and the UN Intergovernmental Panel on Climate Change, everybody (s) ___________ (help) the planet if they (t) ___________ (reduce) their C02 emissions by 3,035 pounds a year. 2. Put the verbs in the correct tenses using the first conditional. ‘If we (a) _________ (not do) something soon, electronic products (b) ___________ (create) serious problems for the environment. We use more and more energy because we buy more and more electronic gadgets. If this situation (c) ______________ (continue), each house (d) _______________ (need) an incredible quantity of energy. The popularity of computers, tablets and mobile phones has created an enormous need for more power. In the 1970s homes contained, on average, just 17 electronic products. But now some people think that they (e) _____________ (not be) able to brush their teeth if they (f) ________________ (not have) an electric toothbrush. If we (g) ____________ (forget) to switch off all these electronic gadgets, we (h) ______________ (use) up all of our electricity for nothing.’

Answer 1

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Explicación:346346+346346+45655=2352552