2017托福写作真题范文一
In the lecture, the professor refutes the three solutions raised in the reading passage to reduce the impact of wind turbines on the bats population, for he thinks those are all infeasible.
Firstly, the professor opposes the reading’s idea that the wind turbines should be built in the areas far away from the migratory routes of the bats. He suggests that the migratory routes of bats are exactly the places where wind turbines should be built, for if they are built in the remote areas such as flat plain, the wind speed will decline, which is very disadvantageous to the power generation function of wind turbines.
Secondly, the reading claims that turning off the wind turbines in the night is one of the solutions, for bats are nocturnal. The professor disapproves, because though the bats are not active in the daytime, they will choose sleep on tall structures, and the tops of the turbines are such places. When the wind turbines function in the day, the bats will get harmed.
Finally, in the reading passage, it suggests that radars can be used to repel the bats, for the bats hate radar waves. The professor disagrees with this, for if bats meet the electromagnetic waves emitted by radars, those waves will prominently influence the reproductive system of the bats.
2017托福写作真题范文二
In the lecture, the professor disagrees with the opinion in the reading passage that the recently issued law to forbid the import and selling of nonnative species is implausible, for he holds that the law is worthwhile to implement.
Firstly, the professor opposes reading’s idea that some pet owners will be forced to turn their pet over to the authorities, which is too merciless. He suggests that the owners’ pets don’t need to be forfeited. Only import and selling of nonnative species will be restricted.
Secondly, the professor disapproves the reading’s idea that the law is too expensive to implement for it will examine thousands of nonnative species in US. The professor points out that the money spent in carrying out the law is much fewer than that used to remove the negative impact of nonnative species.
Finally, in the reading passage, it suggests that it’s unreasonable to apply one same standard to all species and areas. For example, Brazil rabbits can not stand the cold weather in the north so they can’t breed, which indicates that they will not pose a threat to the local species. But the professor refutes that, even so, those animals may carry fatal virus which can be transmitted to other animals, resulting in the possible extinction of local animals.