According to the reading passage, wave-energy facilities will be increasingly common in the future due to their many advantages. However, the lecturer says it is not true that everyone agrees with this argument that the advantages of wave-energy facilities are controversial, giving counter-arguments to the reading’s claim.
First, the lecturer says that we cannot accurately predict the generation capacity of a wave-power facility because of the technical problems. According to the reading passage, wave farms are incredibly reliable generators of power, because they make use of waves that are constant and predictable. However, according to the lecturer, the level of technique of wave-power facility is not good enough to take into account the ocean's harsh environment into account, and thus we cannot say wave-energy is a predictable and stable source of energy.
Second, the lecturer says that wave-power facilities can have a negative effect on the environment because of the harmful chemical materials in the facility. According to the reading passage, wave-energy facilities have been proven to be environmentally friendly because it does not involve the burning of fossil fuels and the floating convertors use the movement of the waves, which are eco-friendly, to turn their turbines. However, according to the lecturer, the facilities use harmful chemical materials to let themselves freely move around on the ocean, so we cannot say they are harmless to the environment.
Third, the lecturer says that wave-power facilities can have a negative effect on the natural beauty of the surrounding landscape because of the brilliant colors of the facilities. According to the reading passage, wave-power convertors are fairly small and usually float on or just below the surface of the water, so they will not be noticeable to anyone in the area from the beach. However, according to the lecturer, they are painted with brilliant colors because the brilliant colors help people easily find the location of it when people need it.
Writing 0-30 scale
Good (25-26)
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