Exercise 6. Complete the text with one word in each gap.
Environmental issues
Everyone agrees dial a) unless die world's liger population is protected, tigers b)… eventually become extinct. If it c)… not for the efforts made by International campaigns over past decades, the extinction d)… already have become a fact. Tigers can coexist with human beings, e)… local people are involved in conservation. However, f)… if tiger habitats are redeveloped there is no guarantee of success. Government agencies must be Involved, and there must be adequate finance: g)… conservation projects are neglected. An organized programme with safeguards must be introduced. If h)… die illegal hunters quickly move back in. i)… there were no tigers left in the world: how j)… we all feel? According to some environmentalists, that day may be coming sooner rather than later.
Exercise 7. Underline the best verb form.
The arguments about climate change
According to all the measurements, climate change happens / is happening, bet science appears / is appearing to be split on what to do about it. Unfortunately, scientists do not all agree / are not all agreeing about the causes of global warming. In a recent book, two scientists – Fred Singer, a climate physicist, and Dennis Avery, a biologist – argue / are arguing that the warming currently observed around the world is part of a 1,500-year cycle in solar energy. Singer, an outspoken critic of the idea that humans warm / are warming the planet, and Avery, believe / are believing that a well-established, 1,500-year cycle in the Earth's climate can explain most of the global warming that takes place / has taken place in the last 100 years. We are currently on an upswing, getting warmer after the Little Ice Age, but in a few hundred years will be / are back on the downswing, and getting colder again. They say / are saying that efforts to slow down the current warming by reducing emissions of greenhouse gases are at best pointless, or at worst economically damaging. This, of course, is not what the fourth assessment report of the UN Intergovernmental Panel on Climate Change (IPCC) has said / said a few weeks ago. That report from the UN climate science working group has concluded / concluded that it is / has been likely that rising greenhouse gas concentrations have caused / caused most recent warming and that, depending on our actions now to slow the growth of emissions, warming by 2100 will probably be / is probably between about 1.5 °C and 6 °C. So, which scientists tell / are telling us the truth?
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Exercise 8. Choose the right word.
1. This is the principal gas which causes the greenhouse effect.
a) carbon dioxide;
b) dust;
с) oxygen.
2. Old bottles, paper and plastics are collected so they can be used again.
a) cycling;
b) recycling;
с) refuse collection.
3. These are what we need to discover and develop in order to stop using fossil fuels.
a) alternative energy sources;
b) bicycles;
с) coal and gas.
4. These can be controlled by buying environmentally friendly products.
a) hamburgers;
b) market forces;
с) stupid children.
5. The idea that industrial societies can enjoy a good economy without destroying the environment.
a) destroying everything for money;
b) eating less hamburgers;
с) sustainable growth.
6. This is how we need to think in order to have a healthy planet.
a) about getting rich and famous;
b) long term;
с) short term.
7. Greedy companies who exploit everything living and dead in order to make money.
a) Amnesty International;
b) Greenpeace;
c) The multi-nationals.
8. This is what is needed so that people know how the planet is being damaged.
a) more hamburgers;
b) more press coverage;
с) more video games.
9. This is what we must do to show politicians we care about the environment.
a) demonstrate;
b) eat more hamburgers;
с) play more video games.
10. This is what stupid smelly people do.
a) eat organically grown produce;
b) drop litter;
с) never eat hamburgers.
11. Flora and fauna which face extinction.
a) boring plants;
b) endangered species;
с) stupid animals.
12. This is what needs to be done so we can take care of our beautiful planet.
a) make cheaper hamburgers;
b) make more cars;
с) raise awareness.
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