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ENGLISH 12 Ortaöğretim Genel Müdürlüğü

ANSWER KEYS

FUNCTIONS: English 12
• Describing problems
Theme 8
• Making complaints Alternative Energy 23
• Offering solutions
L2
1. Read the text and fill in the blanks with the correct statements. 4. Listen to a phone call between an energy consultant and a client. Tick (√) the energy sources
you hear. Tapescript 8.2.1
a it absorbs carbon dioxide not only from the water but also from the air while growing
b the scientists are putting a lot of effort into searching for promising alternative energy sources √
c engineers have been working hard to convert kinetic energy
d this gas covers 74% of the universe
e these sources are still far from meeting the world’s growing energy demands
The Future of Alternative Energy
As renewable energy technologies develop, solar, wind and water power have been put into use in recent years.
They have contributed to decreasing the damage caused by fossil fuels, but (1) e . As a result of this fact,
scientists have been seeking non-polluting and more affordable alternative energy
sources. biomass geothermal power wind power
To begin with, hydrogen energy is one of the most promising future energy ideas. It √ √
will provide a big mass power as (2) d . It has already been proved that it is a clean
energy source which causes almost no pollution. The only problem is that it is found only
in combination with other elements, and it requires an enormous budget to produce pure
hydrogen power with today’s technology. At present, it is majorly being used in industry,
aviation and heavy shipping because it’s highly expensive. Once the budget problem is
resolved, it will sufficiently provide green electricity and low-carbon fuel.
In addition to hydrogen power, algae production for biofuel has a tremendous potential for
clean energy. Algae is a quick-growing plant that contains energy-rich oils. It’s eco-friendly
in that (3) a . They can easily grow in wastewater or man-made ponds; however, algal
biofuel production requires an expensive and time-consuming process. Therefore, the solar power hydropower tidal power
number of refineries producing algal oils to supply biofuels for planes, trains and cars is
far from ideal. Fortunately, attentive studies have been underway to lower the cost.
How about saving the planet by doing some exercise? Producing energy from the human 5. Listen to the phone call again and answer true (T), false (F) or not stated (NS).
body is not a new idea. There have been potential developments in human-powered
electricity generators, but their efficiency is still in question. You may be surprised to hear F 1 Mr. Token is suffering from energy cuts because he lives in a crowded neighborhood.
that human power has already been used at a gym in Hong Kong and a dance club in T
London. In recent years, (4) c , which is a free constant power source, into electrical 2 He doesn’t want to harm the environment while generating electricity.
energy. Doing the required physical movements may be difficult for old or disabled T 3 His property contains sustainable energy sources.
people, though. Not to mention that it is bad news for couch potatoes! But who knows,
maybe science fiction movies will actually come true. NS 4 He will be able to make money by selling the excess electricity to the grid.
The inevitable technological progress is, unfortunately, harming nature day by day, so clean energy sources must F 5 The cost of installment is standard for all homes.
be used without delay. Thankfully, (5) b , as we still have a long road ahead of us.
NS 6 Hybrid energy systems have become increasingly popular in recent years.
2. Read the text again and complete the table.
Alternative source Pros Cons 6. Look at the environmental problems and take notes on the cards. Then, discuss your ideas with
your friends. Students’ own answers
• provides a big mass power • a highly expensive process
Hydrogen power • produces low-carbon fuel
• grows quickly • takes a long time to grow a b c
Algal biofuel • cleans the water and air • a highly expensive process
• good for health • difficult for old and disabled people
Human power • free and never-ending
3. Imagine you are working on a project to find an alternative energy source for the future world.
Write an opinion essay including the points below and then talk about your ideas.
• The sustainable source you want to use • The problems it will solve
• The pros and cons of the suggested source
cause: cause: cause:
Students’ own answers effect: effect: effect:
solution: solution: solution:
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FUNCTIONS: English 12
• Describing problems Theme 8
• Making complaints Alternative Energy 24
• Offering solutions
L3
1. Listen to the podcast about the success story of Freiburg, Europe’s solar city, and put the events 5. Read the news story and complete the blanks with the following numbers.
in the correct order. Tapescript 8.3.1
3 GW €28 billion 80 km 2033 200 70% 1991
5 The city was given an award for their efforts to protect nature.
3 The first example of a solar-powered resident was built in the city to solve energy problem.
1 Thousands demonstrated against the use of nuclear energy. The World’s
4 The residents got the right to receive money to set up solar panels on their roofs. First Artificial Energy
2 A terrible accident occurred at a nuclear power plant. Island on Danish Coast
Denmark is preparing to build a huge island
to supply energy for millions of households
and green hydrogen for use in industry, the North Sea and started to invest more in
transportation and aviation. The world’s first alternative energy sources. The Nordic country
energy island will be situated (1) 80 km intends to reduce greenhouse gas emissions
off the west coast of the country. When it is by (5) 70% within a decade. “This is truly
completed, it will be as big as 18 football pitches, a great moment for Denmark and for global
serving as a hub for (2) 200 offshore wind green transition,” said the Energy Minister Dan
tribunes. Being the largest construction project Jorgensen.
in Danish history, the artificial island will cost The energy island, estimated to be in service
about (3) €28 billion . The Danish Energy Agency in (6) 2033
2. Listen to the podcast again and choose the correct option. , will produce energy more than
reported that the country, which is the primary the country needs; therefore, it will be capable
1 Freiburg was a pioneer in in Europe. stakeholder, would be partners with the private of distributing electricity to the neighboring
sectors in this project.
countries, too. The capacity of the energy
a objecting to a project that would harm the environment Setting up the world’s first wind farms back hub, calculated to be (7) 3 GW
b cooperating with the authorities to start the energy projects 1991 in the initial
in (4) , Denmark has been a leader phase, can be increased by three times in the
2 Chernobyl disaster forced the city council to . in onshore and offshore wind farms. The future. In this way, millions of households in
a meet the energy demand from reliable nuclear plants government announced that the country had Europe will be able to use the green energy
decided to stop searching for oil and gas in provided by the giant island.
b work on sustainable energy solutions
3 After the introduction of clean bill by the government, .
a people started selling the surplus energy to the grid 6. Read the news story again and answer the questions below.
b more and more houses installed solar panels
1 What is the purpose of constructing an energy island?
4 People prefer cycling or using trams because the city . To provide clean energy and reduce greenhouse gas emissions.
a promotes the use of public transportation
2 Who are the sponsors in project finance?
b does not allow cars in the streets The Danish state and the private sectors.
3 How has Denmark contributed to the reduction of greenhouse gases so far?
3. Choose one of the cities which have been using alternative energy successfully for years. Do
some research on them to write about their success story. Include the answers of the following It set up wind farms, stopped searching for oil and gas and started to invest more in alternative energy.
questions in your writing. 4 What is Denmark planning to do with the excess energy produced on the island?
It will supply electricity to the neighboring countries.
5 How will the number of countries benefiting from the island be increased?
• What kind of power • How much energy will • How much does the By expanding the capacity of the energy hub.
source is used? it produce? project cost?
Students’ own answers 7. Work in groups and discuss the questions below. Students’ own answers
a How does the use of fossil fuels affect the environment?
b How can we reduce our carbon footprints?
c Can renewable energy completely replace fossil fuels in the future?
d What is the most promising alternative energy source of the future?
4. Imagine you are responsible for the energy policies of your city. Work with a partner and discuss e Are you pleased with the renewable energy policies in the world? Why/Why not?
what renewable energy sources you will invest in. Students’ own answers
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