1、全球变暖与城市热岛 全球变暖会引起世界各地区降水与干湿状况的变化,进而导致世界各国经济结构的变化。中纬度地区将会因气候变暖使蒸发强烈而变得干旱,现在农业发达的地...
6、大气污染 科学家发现,至少有100种大气污染物对环境产生危害,其中对人体健康危害较大的 有二氧化硫、氮氧化合物、一氧化碳、氟氢烃等。大气污染物严重危害人的气管、肺等呼...
First Inaugural Address(Excerpts) We observe today not a victory of party, but a celebration of freedom, symbolizing an end, as well as a beginning; signifying renewal, as well as change. For I have sworn before you and Almighty God the sam...
在20世纪,人类开始认识到保护生物多样性、实现可持续发展等问题的重要性。一些学者更发现已有基本理论观念存在问题,导致人类社会提系列危机的存在民族冲突、文化冲突日益激...
假定你是初三(1)班的李霞,你五月十四日晚上在阅览室里丢失了一个绿色书包,内有两本英语书,一个铅笔盒,一个MP3及自行车钥匙。你非常着急。你根据以上提示,用英语写一则5 O词...
When autumn comes, I feel so excited, because the sports meeting comes. I like sports so much. When I was very small, my father took me to watch the basketball match, in the long time, sports have become part of my life. When I st...
有一位赫赫有名的集团老总,在40岁以前,穷困潦倒,家徒四壁,没有人看得起他,包括他的妻子。但他只身下海,从小本生意开始,在短短的十年内,把一家手工作坊扩张成了资产达...
Direction: For this part, you are allowed thirty minutes to write a composition on the topic: A letter to the university president about the canteen service on campus, you should write at least 100 words, and base your composition...
todays society is a highly developed technological society. however, the shortcomings in the development process are obvious, such as: carbon dioxide, and environmental pollution. but the most serious should be the carbon dioxide pr...
假定你叫王丽,三年的初中学习生活即将结束.你能用英语写出几句对老师表达感谢和祝福的话语吗? 要求:1.不少于四句;2.不要使用真实姓名、校名、地名等,否则不得分。Dear Miss...