托福口語備考過程中大傢往往會用到一些素材或者模板之類的，其實一些優秀的托福口語范文也是非常不錯的。不知道大傢在平時的備考過程中收集到瞭哪些，今天小編在這裡為大傢整理瞭托福口語經典文章，希望對大傢托福口語提分有幫助。
托福口語經典文章系列匯總：http://toefl.zhan.com/tfziliao63989.html
托福口語必背篇經典文章：摩天大樓 Skyscrapers and Environment
In the late 1960's, many people in North America turned their attention to environmental problems, and new steel-and-glass skyscrapers were widely criticized. Ecologists pointed out that a cluster of tall buildings in a city often overburdens public transportation and parking lot capacities.
Skyscrapers are also lavish consumers, and wasters, of electric power. In one recent year, the addition of 17 million square feet of skyscraper office space in New York City raised the peak daily demand for electricity by 120, 000 kilowatts-enough to supply the entire city of Albany, New York, for a day.
Glass-walled skyscrapers can be especially wasteful. The heat loss ( or gain ) through a wall of half-inch plate glass is more than ten times that through a typical masonry wall filled with insulation board. To lessen the strain on heating and air-conditioning equipment, builders of skyscrapers have begun to use double-glazed panels of glass, and reflective glasses coated with silver or gold mirror films that reduce glare as well as heat gain. However, mirror-walled skyscrapers raise the temperature of the surrounding air and affect neighboring buildings.
Skyscrapers put a severe strain on a city's sanitation facilities, too. If fully occupied, the two World Trade Center towers in New York City would alone generate 2.25 million gallons of raw sewage each year-as much as a city the size of Stanford, Connecticut , which has a population of more than 109, 000.
以上就是小編為大傢整理的托福口語備考必背的經典文章，大傢一起來看看這些文章是如何獲得高分的吧，希望這些可以幫助以大傢廣大考生。最後，小編預祝大傢托福考試能取得理想的成績。
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