雅思寫作背景素材：環境類

　　下面雅思為大家整理了雅思寫作背景素材：環境類，供考生們參考，以下是詳細內容。

　　Everywhere man is altering the balance of nature. He is facilitating the spread of plants and animals into new regions, sometimes deliberately, sometimes unconsciously. He is covering huge areas with new kinds of plants, or with houses, factories, slag-heaps and other products of his civilization. He exterminates some species on a large scale, but favours the multiplication of others. In brief, he has done more in five thousand years to alter the biological aspect of the planet than has nature in five million.

　　以上就是雅思為大家整理的雅思寫作背景素材：環境類，非常實用。更多資訊、資料盡在雅思。最后，雅思預祝大家在雅思考試中取得好成績!