新航道上海學校雅思頻道小編第一時間帶來分享每次雅思考試大作文范文及解析，希望對各位備考考生們有所幫助，對雅思寫作有所提高!本文是2022年7月23日雅思大作文范文及解析：城市化對環境的影響。

  2022年7月23日雅思大作文題目

  More and more people move from the countryside to big cities. Does this development bring more advantages or disadvantages to the environment?

  高分范文及解析

  Introduction

  With the increasing population shifting from rural to urban areas, an array of hazards have been brought to the natural environment.

  解析

  老題新改，城市化話題，但要求利弊全都只能寫對“環境”的影響。細想這個題，有點難度。

  hazard n.[C] 害處

  Body 1

  Of all the detriments to the environment, the most conspicuous one is the urban heat island effect, which means a city or metropolitan area that is significantly warmer than its surrounding rural areas due to human activities. To illustrate, as the population density is getting higher in urban areas, human activities wreak havoc on the environment. For example, more vehicles, factories, and domestic heating and cooling units not only release more heat but also discharge more contaminants amassing above cities, rendering the air saturated with harmful chemicals, dust, and other pollutants. // Additionally, with an increasing number of people migrating to cities, public parks and green lands need to be converted into residential areas for the surging demand for housing. The less the greenery is in cities, the severer the pollution is.

  解析

  (1) 城市化 → 人類活動更多，比如：開車出行、家用電器使用等 → 更多污染物排放，污染聚集在城市上空; (2) 城市化 →城市的住房需求增加 → 城市的公園或綠色區域會被轉化為住宅區 → 更嚴重的污染

  urban heat island effect n. 城市熱島效應

  metropolitan adj. 大都市的

  wreak havoc on v. 對…造成威脅

  contaminant n.[C] 污染物

  amass vi. 聚集

  be saturated with adj. 充斥著

  migrate vi. 遷徙

  covert vt. 使轉變

  greenery n. 綠色植物

  Body 2

  Admittedly, it is justifiable for some to argue that the natural environment in remote areas, with the process of urbanisation, will be improved, as fewer human activities there exert a negative impact. However, this is merely an incomplete part of the whole picture. As a matter of fact, the urban area teeming with the sea of people fails to alleviate, or even worse, fuels the urban heat island effect. This is mainly because most of the sun's energy in cities, where there is less vegetation and exposed soil, is absorbed by buildings and asphalt, leading to higher surface temperatures. By stark contrast, if the population scatters in urban and rural areas, the heat and pollutants brought by human activities in each area are more likely to be consumed by evaporation of water from larger areas of vegetation and soil.

  解析

  讓步：盡管郊區沒了人口后，環境會得到改善// 反駁：城市人口過于密集，帶來的熱島效應無法緩解，反而加劇 [對比論證] 如果分散居住，有足夠的綠色植被空間，改善熱島效應

  teem with vi. 充滿著

  fuel vt. 加劇

  asphalt n. 瀝青

  scatter vi. 分散

  Conclusion

  In the light of the above, the final verdict is quite crystal-clear. Though such a trend may moderately better the environment in remote areas, such an advantage pales into insignificance when set against the hazards to the environment in metropolises.

  解析

  重申觀點

  verdict n. 意見;結論

  pale into insignificance 使顯得不那么重要;使相形見絀

  metropolis n.[C] 大都市