新托福写作真经4test5-综合写作解析.docx

新托福写作真经4test5-综合写作解析 　　备考托福的小伙伴，托福真题是必备的考试神器。所以，接下来， HYPERLINK /forum-1.html \o 前程百利 前程百利小编和大家分享托福写作真经4test5综合写作的题目解析。备考托福的小伙伴们，赶紧来围观吧。 　　阅读文本： 　　Forestry officials in the United States once sought to prevent even small forest fires from breaking out. But, in recent decades, many forestry services have enacted policies permitting controlled burnings, also called prescribed burns. In a controlled burn, parts of a forest are allowed to burn, but care is taken to ensure that the fire does not spread too much. While prescribed burns are popular nowadays, there is mounting evidence that they do more harm than good. 　　One of the greatest negative effects of a prescribed burn is its impact on a region’s wildlife. Prescribed burns frequently directly cause the deaths of forest denizens such as deer, bears, squirrels, and rabbits. Additionally, the fires destroy the homes of most animals that survive. Having lost their habitats, these animals must move to new areas. This negatively affects the wildlife native to those areas since more animals are forced to compete for a finite supply of food. 　　Prescribed burns in national parks do not just take a day or two. They often last for days at a time. These burns therefore produce large amounts of air pollution in the form of smoke from burning trees and other vegetation. This smoke is extremely thick and full of ash. It is not only hazardous to those nearby who breathe it, but it can also flow through the atmosphere, where it decreases the air quality in areas far from the burning region. 　　Many forestry officials claim that prescribed burns are necessary since they prevent large-scale forest fires. Yet forest fires often simply bypass the burned areas and spread to other places instead. In some cases, prescribed burns have gotten out of control and transformed into major forest fires. Thus, forestry officials themselves have been the cause of widespread destruction in some forested areas. 　　阅读要点分析