Unit 7A

What is NOT true about solar power?

• Solar power is clean and does not produce emissions.

• Solar energy supplies less than two percent of the world’s energy.

• Solar panels are cheap to produce.

• Solar power depends strongly on the weather.

What is the main purpose of paragraph D?

• to compare the price of solar power with fossil fuels

• to explain the advantages of putting solar power stations in space

• to explain why solar space stations will be expensive

• to explain that solar energy is clean

What would be the best location for wind towers?

• in a remote place where the wind is constant but not too strong

• in national parks where they can be protected

• in urban areas where there is a high population

• in seaside areas that get storms with very high winds

What is the main idea of paragraph H?

• In future decades, the weather will be calmer so the wind would not be as strong.

• The average homeowner prefers to import power produced far from home.

• It will take 20 or 30 years for solar and wind to be practical sources of energy.

• Businesses may find it difficult to balance the inconsistency of available power.

What does the passage say about alternative sources of energy?

• Solar, wind, and nuclear power all have drawbacks, so we need a new source of green energy.

• A combination of solar, wind, and nuclear power will be better than using fossil fuels.

• Like solar and wind power, nuclear power is produced without harmful carbon emissions.

• Despite concerns about safety and radioactivity, nuclear power is the source of 13% of Earth's energy.

The word finite in paragraph A, line 3 is closest in meaning to ______.

• limited

• expanding

• crucial

• unknown

The word ideal in paragraph D, line 3 is closest in meaning to ______.

• desirable

• perfect

• impossible

• potential

The author does NOT say that space-based energy ______.

• is a form of nuclear energy

• can function all day, every day

• could provide power to all countries

• will be expensive at first, then cheaper

The author mentions a problem with a nuclear plant in ______.

• France

• China

• Japan

• India