托福综合写作优秀作文

托福写作分为综合写作和独立写作，这两部分写作的评分所占权重一样，所以同学们在复习时应当都要重视起来。接下来小编给大家介绍托福综合写作优秀作文，供大家参考学习。

托福综合写作优秀作文

The lecturer and the reading passage suggest two competing theories, the predation theory vs. the pollution theory, to explain why the sea otter population is in rapid decline.

The professor reasons that the absence of dead sea otters washed up the coast suggests that their decline is not caused by sea pollution but rather by sea predators who consume their bodies after killing them. In contrast, the reading passage attributes the death of sea otters to pollution, citing evidence of increased sources of ocean contaminants which lead to greater vulnerability to infections.

Furthermore, the lecturer argues that orcas are likely factors in the disappearance of sea otters, because the scarcity of whales, their usual prey, has left them with no other choice but to start hunting smaller mammals like the seals for food. The reading passage, on the other hand, rules out this theory based on the orca’s praying habit, and instead approves of the pollution theory as the only explanation for the decline of both large and small sea mammals across the entire ecosystem.

Finally, according to the lecturer, the uneven pattern of sea otter decline corresponds to the distribution of the orcas; she argues that the fact that their population has declined most rapidly where orcas are most prevalent further validates the predation theory. However, the reading passage argues that changeable environmental factors, which lead to different concentrations of pollutants, better explains the varying pattern of sea otter decline.

满分托福综合作文

The reading states that fuel-cell engines have several advantages over internal-combustion engines. However, the lecturer points out that replacing internal-combustion engines with hydrogen-based fuel-cell engines is technologically unfeasible, environmentally unfriendly, and economically unviable.

First, the lecturer argues although, as the reading states, hydrogen resource are abundant in various resources, it cannot be utilized before being turning into liquid state, which is hard to produce and store technologically. For example, it must be kept cold at minus 253 degrees Celsius which can only be realized with elaborate cooling technology.

Second, the lecturer refutes the claim in the reading that hydrogen cells are environmentally friendly. She argues that although engines that use hydrogen cells produce less pollution, the manufacturing of hydrogen cells generates large amounts of harmful by-products due to the burning of fossil fuels in the purification process.

Third, although the reading suggests that hydrogen-based engines are more fuel-efficient and thus economically competitive than internal-combustion engines, the professor argues that such an advantage is undermined by the fact that fuel-cell engines are extremely expensive to manufacture because they require the addition of platinum, a very rare and expensive material.

托福综合作文万能模板

1.Agree or disagree

Some people prefer to A, others believe B, Nowadays some may hold the opinion that ________________, but others have a negative attitude. As far as I am concerned, I agree/disagree that_______________. MY arguments for this point are listed as follows.

One of the primary causes is that_______________________.

Examples_______________.

But there is a fruther more subtle point we must consider. Examples.

What is more_______________. Examples___________

General speaking, __________. Recongizing the fact that _______________should drive us to conclude that______________.

2.　he lecture is mainly discussing____ _____and ______by_____， challenging what are stated in the reading passage that ______，____and ____.

First of all， the speaker thinks that ____.In contrast，the reading passage believes that ____，so the lecture totally disagree with the view made in reading.

Second， the speaker discuss____， contradicting what is stated in the reading that____.

Finally， the speaker raises the issue that ____.This point disagrees that____demostrated in reading.

So， the contents in the reading passage are totally jeopardized by the speaker and the speaker has tatally different ideas on the topics made in the reading.