範例回答1（高級程度）：得分[5.0]

I think air pollution from sources such as vehicles is a significant environmental issue. For instance, when a vehicle burns gasoline, it releases contaminents into the air. These chemicals damage the atmosphere, which contributes to global warming. As a result, in polar areas, glaciers are melting, and the oceans keep rising. In addition, when the air is polluted, it impacts people with conditions like asthma. Their lungs are vulnerable, and polluted air makes it a struggle for them to breathe. I know some governments have taken steps to solve the problem with air pollution. However, I believe most governments have not done enough and need to act more now. If not, these kinds of problem will just become worse and people will continue to suffer.

回答說明 1

这篇文章是一篇相当高水平的写作，根据写作评分规则，可能会获得5分的成绩。回答者提供了复杂的想法，并巧妙地通过详细的解释和实例，成功地对讨论做出贡献。回答者选择了空气污染这个想法，提供了产生空气污染的示例，说明了空气污染对空气的损害，并列出了一些损害的结果。文章的描述顺序是逻辑和一致的。此外，回答者还触及了另一个相关结果，即空气污染对人体健康的影响，并解释了空气污染如何影响健康状况。回答者不仅在语法和句子结构方面具有多样性，还提供了与主题相关的术语和许多同义词。

文章中错误非常少，唯一的缺陷是单词“contaminants”的拼写错误，但这是特定单词属性内容容许的错误。另外，“problem with air pollution”这个短语中存在语法错误，正确的是“problem of air pollution”。最后一句中的名词“problem”存在语法错误，必须是复数形式。然而，这些语法错误在限制时间内高水平英语水平也是可能出现的错误。因此，这些错误不会影响得分。

样本回答2（中级水平）：分数[3.0]

Pollution in the air is a problem, and governments should try to solve it. A lot of pollution come from factories. Smoke goes to the air and makes the air dirty. I live in Los Angeles, and the air is not clean. This is because there are too many cars. Maybe it is a good idea for governments to make electric cars cheaper. I want to buy a electric car, but I can not afford one. Also, when there is too much pollution in the air, it causes global warming. Governments need stop this problem because the weather is changing too much. The weather is inpredictable. Some areas are getting too much rain now. Other areas are too hot and do not get enough rain.

回答說明 2

这个写作范例是一个中级水平的回答，可能会根据TOEFL写作评分标准获得3分。回答者对讨论有所贡献，但一些想法可能不完整或缺乏足够的细节，可能导致评分下降。例如，作者提到工厂是污染源，但随后提到了洛杉矶和汽车相关的信息，并没有关联性。此外，回答者建议使用电动车，但没有说明这种车如何减少污染量。回答者在语法和句子结构方面缺乏多样性，词汇多样性有些程度。回答者还在回答中使用了与主题相关的术语，如“全球变暖”。回答中存在各种错误。这些错误可能会降低评分，并且可能是由于英语能力不足，而与时间限制无关。例如，“a lot of pollution come from”这样的短语使用了错误的动词时态，“a lot of pollution comes from”才是正确的。此外，“smoke goes to the air”这句话需要使用不同的介词，“smoke goes into the air”才是正确的。此外，在有关信息提供的句子中，助动词“need”后面需要跟随不定式“to stop”，而不是“stop”。回答者在使用“可预测的”形容词的前缀时犯了错误，但在标点符号方面有正确的知识，并在适当的地方使用了逗号和句号。