▶ Topic :
The lecturer argues that not everyone
agrees with the advantages of wave-energy facilities and even contends that they
are illusion. This directly contradicts the reading passage’s claim that wave-energy
has distinctive strengths that will make it increasingly common in the near
future.
First, the
lecturer maintains that there is another factor to consider when it comes to
the reliability of the wave-energy. The convertors can have technical problems.
To be specific, in the harsh marine environment, they experience a lot of
breakdown, so it is easy for them to malfunction. This casts doubt on the
reading passage’s claim that the wave-power is a constant and predictable
resource of energy.
Second, the
lecturer claims that it is easy to dismiss the assumption that wave-power
facilities are eco-friendly. The convertors contain harmful chemical, which enable
their turbines and other part of them move freely. Thus, they might have
negative influence on the marine organisms. This refutes the reading passage’s
claim that wave-energy does not harm environment, because it does not use
fossil fuels and contaminate the ocean.
Lastly, the
lecturer asserts that wave farms do harm the landscape. The reason is the
convertors are highly visible. They are painted with bright colors in order to
be easily found by the shipping vessels, which makes tourists could detect them
as well. This rebuts the reading passage’s claim that wave-energy generators
are not noticeable, and thus, they do not distract the tourists from the
natural scenery.
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