光合作用雅思范文
- 2026年02月03日13:44 来源：小站整理
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雅思写作Task 2 范文示例
题目： Some people think that planting trees in open spaces in cities and towns is more important than building housing. To what extent do you agree or disagree? （有人认为，在城镇的空地上植树比修建住房更重要。你在多大程度上同意或不同意？）
范文：
While the demand for residential housing in urban areas is undeniable, I firmly believe that prioritizing the planting of trees in city spaces is equally, if not more, crucial for sustainable urban living. This practice yields irreplaceable ecological and social benefits that far outweigh the short-term gains of additional construction.
The most significant advantage of urban greenery lies in its environmental remediation capabilities. Trees are the lungs of our planet through the process of photosynthesis, whereby they absorb carbon dioxide and other pollutants while releasing life-sustaining oxygen. In cities plagued by vehicular and industrial emissions, this natural air-purifying system is indispensable for mitigating climate change and improving public health. Moreover, tree canopies provide shade, reduce the urban heat island effect, and help manage stormwater runoff, directly enhancing the city’s resilience and livability.
From a social and psychological perspective, green spaces are vital for community well-being. Parks and tree-lined streets offer residents accessible areas for recreation, exercise, and social interaction, which are essential for mental health in densely populated, high-stress environments. Studies have shown that proximity to nature reduces stress, boosts concentration, and fosters a sense of community. Sacrificing these spaces for concrete housing projects might address physical shelter needs but at the cost of degrading the overall quality of life, potentially creating sterile and stressful habitats.
Admittedly, housing shortages are a pressing issue in many growing towns. However, the solution does not have to be an either-or dilemma. Urban planning can embrace a balanced approach through innovative architectural solutions such as vertical gardens, green roofs, and the preservation of existing parks while developing housing in a more compact and efficient manner. The key is to integrate nature into development, not replace it.
In conclusion, although providing housing is a fundamental urban function, the ecological services provided by trees—primarily through photosynthesis—and their contribution to social welfare make them an essential component of any healthy city. Therefore, I strongly agree that urban afforestation should be given priority comparable to, if not higher than, residential development in urban planning decisions.
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范文解析与“光合作用”的应用要点
论点融入：范文没有大段解释光合作用的科学原理，而是将其作为一个有力的、公认的科学事实来使用。用“the process of photosynthesis”和“ecological services provided by trees—primarily through photosynthesis”这样的短语，简洁有力地支撑了“树木净化空气、对抗气候变化”的核心论点。
词汇亮点：
Photosynthesis (n.) 光合作用
Absorb carbon dioxide 吸收二氧化碳
Release oxygen 释放氧气
Air-purifying system 空气净化系统
Mitigate climate change 缓解气候变化
Urban heat island effect 城市热岛效应
Ecological remediation 生态修复
Sustainable urban living 可持续的城市生活
论证结构：
明确立场：开篇表明观点（同等甚至更重要）。
主体段1（环境论据）：以光合作用为核心，展开其对城市空气、温度和气候的益处。
主体段2（社会论据）：论证绿地对心理健康和社区建设的价值。
让步段：承认住房需求，但提出解决方案（平衡与创新）。
结论：重申立场，并再次点明光合作用带来的不可替代的生态价值。
如果在口语中被问到如何解释光合作用？
可以给出一个简洁、地道的版本：
“Well, photosynthesis is basically how plants make their own food. It’s a process where plants use sunlight, take in carbon dioxide from the air, and water from the soil to produce glucose (which is sugar, their food) and oxygen. So, in a way, plants are the ultimate ‘green machines’ that clean our air and provide us with the oxygen we breathe.”
总结：
在雅思考试中，面对“光合作用”这类学科概念，最好的策略是：
知其核心：知道它的基本定义和结果（吸收CO₂，释放O₂，制造养分）。
作为论据：在环境类话题中，将其作为支持“保护植物/森林重要性的”王牌科学证据。
简洁表述：不需要复杂生化过程，用简单准确的词汇（absorb, release, using sunlight）说清即可。
希望这篇范文和解析能对您有所帮助！
