【名词&注释】
自然辩证法(dialectics of nature)、周期性(periodicity)、政治家(politician)、明末清初(late ming and early qing dynasty)、教育家(educator)、《长生殿》(the palace of eternal youth)、《西厢记》(the west chamber)、热带雨林(tropical rain forest)、思想家(thinker)、大气层(atmosphere)
[单选题]清代戏剧家洪昇的代表作品是
A. 《长生殿》
B. 《汉宫秋》
C. 《西厢记》(the west chamber)
D. 《赵氏孤儿》
The atmosphere and oceans are not the only parts of the environment being damaged. Rain forests are being quickly destroyed as well, and their survival is questionable. E．O. Wilson, a biologist at Harvard, calls the depletion(枯竭、耗尽)of rain forest areas "the greatest extinction since the end of the age of dinosaurs(恐龙)." Unlike some environmental issues, rain forests' depletion has fortunately received significant public and media's attention. Despite the opposition to the cutting down of rain forests, the problem continues. Every year, Brazil chops down an area of forests the size of the state of Nebraska. In addition to the Amazon's rain forests, many other forests are being cut down as well.: In Indonesia, Zaire, Papua-new Guinea, Malaysia, Burme, the Philippines, Peru, Colombia, Bolivia, and Venezuela, rain forests that were once great have been lost.
