外教参考范文:

While the past fewcenturies have witnessed increasingly better quality of human life, humanactivity is doing more and more harm to the Earth. Natural resources are beingdepleted and pollution is being created as a result of development oftechnology. Natural areas are being damaged as a result of urban expansion topopulate more people.

First, we harm theEarth by using more and more natural resources. If we fell too many trees atone time to build houses and make paper, or if we cut down trees before theygrow to maturity, they can hardly grow back in time. As worrisome asovercutting of trees is overfishing. With improved technology and greater drivefor money, fish of all kinds are being over hunted, reducing the biomass ofsome fish to the verge of extinction. Whaling seems a most irksome issue. Whilemost countries argue against it, some countries go whaling to extremes. Weoften take it for granted that we have unlimited natural resources and use themin a wasteful manner, bringing about great losses.

Second, we damagethe Earth by producing pollution in all forms. Factories pollute water and theair. Vehicles pollute the air. Nuclear-related and electronic products areplaying an increasingly big role in polluting the air, especially when wedispose of related waste carelessly. We take it for granted that Nature canhelp clean everything, but it cannot.

Third, expandingtowns and cities are taking up more and more land. As populations flood tocities, new house and stores have to be built to accommodate their needs. Landthat was good for farming has now become factories and apartment buildings. Weseem to take it for granted that we have unlimited land, but we do not.

In summary, human activity seems to be going at theexpense of the Earth in various ways. However, our survival depends on theEarth, including natural areas and natural resources, so we have to veneratethe Earth.