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TOEFL Academic Discussion Writing Sample: Directions: Your professor is teaching a class on environmental science. Write a post responding to the professor’s question. In your response you should: express and support your personal opinion make a contribution to the discussion in your own words An effective response will contain at least 100 words.

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Task Overview

Diaz

Nowadays, the world is facing a number of pressing environmental problems, and over the next few weeks, we’ll be discussing various innovations that may help solve these problems. To begin our discussion, I’d like you to think of one global environmental problem—for example, it could be related to water, air, land, climate, biodiversity, energy, or something similar. Then explain what you think would be an effective solution to this problem.

Kelly

One of the major environmental problems is the limited freshwater supply in many areas of the world, which means that we need to find effective technologies to provide people with enough drinking water. One solution is to improve the technology for removing salt from seawater, which could allow us to use seawater to replenish dwindling freshwater supplies.

Paul

I think the biggest problem is the air pollution caused by the overuse of motorized vehicles. The obvious solution is for local governments to promote alternatives, like building bike lanes in cities or improving public transportation with electric buses. Both of these would be easy to implement as well.

User Samples & Evaluation Results

User Sample

In my opinion, the greenhouse effect is a global environmental problem.Due to the greenhouse effect, the annual average temperature is raising fast globally, which has caused the glacier to melt faster and the amount of freshwater supply to decrease.One innovative solution is building rooftop greenery.Building rooftop greenery has multiple benefits.First, it can reduce the dramatic heat produced by urban area.Secondly, it can decrease the carbon emission greatly by its leaves.Last but not least. It contributes in the biodiversity in urban area as it provides the birds and other creatures living in cities a habitat which might help them to settle down in the cities. All in all, this rooftop greenery solution is a quintessential example of using one way to solve multiple problems. Adapting it surely will be worthwhile.

Evaluation Result

1. 子项得分

  • Relevance and Contribution to Discussion: 5

  • Clarity and Elaboration of Viewpoint: 4.5

  • Language Use and Grammar: 4

2. 预估分数

26. 3 任务完成度

整体来说,你的文章回答了问题,并提出了一个创新的解决方案。然而,为了更好地完成任务,你可以在阐述观点时提供更多细节和例子。例如,你可以描述一下建立屋顶绿化的具体过程以及如何实施这个方案。

示例1(英文):To implement rooftop greenery, local governments can provide incentives for building owners to install green roofs, such as tax breaks or subsidies. This would encourage more people to adopt this environmentally friendly solution.

示例2(英文):In addition to the benefits you mentioned, rooftop greenery can also help reduce energy consumption in buildings by providing natural insulation, which keeps the building cooler in summer and warmer in winter.

4. 文章结构与组织

你的文章结构清晰,包括引言、主体和结论。但是,在组织上还有一些改进空间。首先,在引言部分可以简要介绍一下你要讨论的环境问题和解决方案。其次,在主体部分,可以使用段落来详细阐述每个观点,并使用过渡词或短语使文章更连贯。

建议1(简体中文):在引言部分简要介绍一下你要讨论的环境问题和解决方案。

示例1(英文):In this post, I would like to address the issue of the greenhouse effect and propose an innovative solution: building rooftop greenery.

建议2(简体中文):在主体部分,使用段落来详细阐述每个观点,并使用过渡词或短语使文章更连贯。

示例2(英文):Firstly, rooftop greenery can help reduce the urban heat island effect. This is because plants absorb sunlight and release moisture through a process called transpiration, which cools the surrounding air. Moreover, green roofs can also contribute to reducing carbon emissions...

5. 语法批改

In my opinion, the greenhouse effect is a global environmental problem.Due Due(Missing space between sentences) to the greenhouse effect, the annual average temperature is raising fast globally, which has caused the glacier to melt faster and the amount of freshwater supply to decrease.One One(Missing space between sentences) innovative solution is building rooftop greenery.Building Building(Missing space between sentences) rooftop greenery has multiple benefits.First First(Missing space between sentences), it can reduce the dramatic heat produced by urban area.Secondly Secondly(Missing space between sentences), it can decrease the carbon emission greatly by its leaves.Last Last(Missing space between sentences) but not least. It contributes in the biodiversity in urban area as it provides the birds and other creatures living in cities a habitat which might help them to settle down in the cities. All in all, this rooftop greenery solution is a quintessential example of using one way to solve multiple problems. Adapting it surely will be worthwhile.

Section Title: 6 文章修订

In my perspective, the greenhouse effect poses a significant global environmental challenge. This phenomenon leads to rapidly increasing annual average temperatures worldwide, resulting in accelerated glacial melting and a subsequent decline in freshwater supplies. A novel approach to addressing this issue is the implementation of rooftop greenery. This solution offers numerous advantages; firstly, it mitigates the intense heat generated in urban areas. Secondly, it substantially reduces carbon emissions through the natural process of photosynthesis. Lastly, rooftop greenery enhances urban biodiversity by providing habitats for birds and other species, enabling them to thrive within city environments. In essence, this innovative strategy exemplifies a comprehensive solution to multiple problems, making its adoption highly beneficial and rewarding. (118 words)

In my opinion, perspective [revised for a more formal tone], the greenhouse effect is poses a significant global environmental problem.Due challenge [rephrased for clarity]. This phenomenon leads to the greenhouse effect, the rapidly increasing annual average temperature temperatures worldwide [rephrased for clarity], resulting in accelerated glacial melting and a subsequent decline in freshwater supplies [rephrased for clarity]. A novel approach to addressing this issue is raising fast globally, which has caused the glacier to melt faster and the amount implementation of freshwater supply to decrease.One innovative solution is building rooftop greenery.Building rooftop greenery has multiple benefits.First, [rephrased for clarity]. This solution offers numerous advantages; firstly, it can reduce mitigates the dramatic intense heat produced by urban area.Secondly, it can decrease the carbon emission greatly by its leaves.Last but not least. It contributes in the biodiversity generated in urban area as areas [rephrased for clarity]. Secondly, it provides substantially reduces carbon emissions through the natural process of photosynthesis [added information for better understanding]. Lastly, rooftop greenery enhances urban biodiversity by providing habitats for birds and other creatures living in cities a habitat which might help species, enabling them to settle down in the cities. All in all, thrive within city environments [rephrased for clarity]. In essence, this rooftop greenery innovative strategy exemplifies a comprehensive solution is a quintessential example of using one way to solve multiple problems. Adapting it surely will be worthwhile.problems, making its adoption highly beneficial and rewarding [rephrased for emphasis and clarity].

Display title: 8 思维导图

Mindmap:

1. Greenhouse effect
   1.1 Global environmental challenge
   1.2 Increasing temperatures
   1.3 Glacial melting
   1.4 Decline in freshwater supplies

2. Rooftop greenery
   2.1 Mitigates urban heat
   2.2 Reduces carbon emissions
       2.2.1 Photosynthesis
   2.3 Enhances urban biodiversity
       2.3.1 Habitats for birds and other species

3. Comprehensive solution
   3.1 Multiple benefits
   3.2 Highly beneficial and rewarding adoption 

Display title: 9 关键词

WordPhonetic SymbolPart of SpeechEnglish DefinitionSimplified Chinese TranslationSample Sentence
Greenhouse effect/ˈɡriːnhaʊs/ /ɪˈfekt/NounThe warming of the Earth's atmosphere due to trapped heat from the sun's rays温室效应The greenhouse effect poses a significant global environmental challenge.
Phenomenon/fəˈnɒmɪnən/NounA fact or situation that is observed to exist or happen, especially one whose cause is in question现象This phenomenon leads to rapidly increasing annual average temperatures worldwide.
Mitigate/ˈmɪtɪɡeɪt/VerbTo make something less severe, serious, or painful; alleviate or reduce the impact of something negative.缓解、减轻(尤指痛苦、困难、损失等)Rooftop greenery mitigates the intense heat generated in urban areas.
Photosynthesis/ˌfəʊtəʊˈsɪnθɪsɪs/NounThe process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll pigments光合作用Carbon emissions are substantially reduced through the natural process of photosynthesis.
Biodiversity/ˌbaɪoʊdaɪˈvɜrsəti/NounThe variety of plant and animal life in a particular habitat, ecosystem, or the world as a whole; a high level of biodiversity is desirable for maintaining ecological balance.生物多样性Rooftop greenery enhances urban biodiversity by providing habitats for birds and other species.
Habitat/ˈhæbɪtæt/NounThe natural home or environment of an animal, plant, or other organism.栖息地、生境Birds and other species can thrive within city environments due to the habitats provided by rooftop greenery.
Comprehensive/ˌkɒmprɪˈhensɪv/AdjectiveIncluding or dealing with all or nearly all elements or aspects of something; complete; thorough.全面的、综合的This innovative strategy exemplifies a comprehensive solution to multiple problems.
Beneficial/ˌbenəˈfɪʃəl/AdjectiveResulting in good; favorable or advantageous; contributing to well-being.有益的、有利的The adoption of rooftop greenery is highly beneficial and rewarding.
Rewarding/rɪˈwɔrdɪŋ/AdjectiveProviding satisfaction; gratifying; worthwhile.值得的、有益的Implementing rooftop greenery is a rewarding solution to the greenhouse effect.

How Academic Discussion Is Scored

The TOEFL Academic Discussion task is evaluated based on the official ETS scoring rubric. AI evaluation analyzes each response across multiple dimensions.

Relevance & Contribution

Does the response address the question and contribute meaningfully to the discussion?

Language Use

Grammar accuracy, vocabulary range, and sentence structure quality.

Development & Support

Are ideas well-developed with specific examples and clear reasoning?

Common Patterns Across Responses

Based on analysis of user submissions for this task, here are common patterns observed in student responses.

Many students provide clear opinions but lack specific supporting examples.

Strong responses directly reference the reading passage and other speakers' viewpoints.

Higher-scoring responses use varied sentence structures and academic vocabulary.

Time management is a key factor — responses that feel rushed tend to score lower on development.

Learning Tips

1

Read the prompt carefully and identify all parts of the question before writing.

2

Reference the reading passage and the other students' opinions in your response.

3

Use specific examples to support your main point — avoid generic statements.

4

Aim for 120-150 words. Longer responses are not always better; clarity and focus matter more.

5

Practice timed responses (10 minutes) to build fluency under exam conditions.

Frequently Asked Questions

What is the TOEFL Academic Discussion task?
The TOEFL Academic Discussion task requires you to contribute to an online classroom discussion. You'll read a professor's question and other students' responses, then write your own post expressing and supporting your opinion in about 10 minutes.
How is the Academic Discussion task scored?
The task is scored on a scale of 0-5 based on relevance to the discussion, quality of language use (grammar, vocabulary, sentence structure), and how well you develop and support your ideas with specific examples and reasoning.
What are the user samples on this page?
These are real responses submitted by TOEFL test-takers who practiced this question on LingoLeap. Each sample has been evaluated by our AI scoring engine, which provides a score and detailed feedback on strengths and areas for improvement.
How accurate is the AI evaluation?
LingoLeap's AI evaluation engine is trained on official ETS scoring rubrics and calibrated against human rater scores. While no automated system is perfect, it provides reliable feedback for practice purposes and helps identify specific areas for improvement.
How can I practice this Academic Discussion task?
You can practice by signing up for a free LingoLeap account. Write your own response to this exact question, submit it, and receive instant AI evaluation with detailed feedback on your writing.
How long should my Academic Discussion response be?
Aim for 120-150 words. The task gives you 10 minutes to write your response. Focus on clarity, supporting your opinion with specific examples, and referencing the discussion context rather than writing a longer response.

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