六级With fertilizer prices jumping nearly 50% per metric ton over the last year in some places, human waste is an attractive, and often necessary, alternative.
在一些地方,化肥价格比去年每公吨上涨了近50%,人类粪便是一种有吸引力的、而且经常是必要的替代品。
2016年6月阅读原文
六级billion metric tons of carbon into the atmosphere each year - making forests the leading source of greenhouse gases.
每年有10亿公吨的碳排放到大气中,使森林成为温室气体的主要来源。
2013年6月阅读原文
六级Today, we produce about four billion metric tonnes of food per year
今天,我们每年生产大约40亿吨粮食
2013年12月阅读原文
六级Amazon plants, for instance, hold more than 100 billion metric tons of carbon, equal to 15 years of tailpipe and chimney emissions.
例如,亚马逊工厂的碳排放量超过1000亿吨,相当于15年的排气管和烟囱排放量。
2013年6月阅读原文
六级billion metric tons of carbon into the atmosphere each year - making forests the leading source of greenhouse gases
每年有10亿公吨的碳排放到大气中,使森林成为温室气体的主要来源
2013年6月阅读原文
六级Each burning season in the Amazon, fires deliberately set by frontier settlers and developers hurl up almost half a billion metric tons of carbon a year, placing Brazil among the top five contributors to greenhouse gases in the world.
在亚马逊地区的每个燃烧季节,边境定居者和开发商故意放火,每年排放近5亿吨碳,使巴西成为世界上温室气体排放量最大的五个国家之一。
2013年6月阅读原文
六级Each burning season in the Amazon, fires deliberately set by frontier settlers and developers hurl up almost half a billion metric tons of carbon a year, placing Brazil among the top five contributors to greenhouse gases in the world
在亚马逊地区的每个燃烧季节,边境定居者和开发商故意放火,每年排放近5亿吨碳,使巴西成为世界上温室气体排放量最大的五个国家之一
2013年6月阅读原文
六级It is estimated that in 2014 the world produced some 42 million metric tons of e-waste discarded electrical and electronic equipment and its parts with North America and Europe accounting for 8 and 12 million metric tons respectively.
据估计,2014年,全世界产生了约4200万公吨的电子废弃物废弃电气和电子设备及其零件,北美和欧洲分别占800万公吨和1200万公吨。
2019年6月六级真题(第二套)阅读 Section B
六级If the collapse of the rain forests speeds up dramatically,it could eventually release 3.5-5 billion metric tons of carbon into the atmosphere each year - making forests the leading source of greenhouse gases.
如果雨林的崩塌速度急剧加快,每年可能最终向大气释放35-50亿吨碳,使森林成为温室气体的主要来源。
2013年6月阅读原文
六级As a bonus, the hotel’s lower energy needs have reduced its annual carbon emissions by more than 200 metric tons.
此外,酒店较低的能源需求使其年碳排放量减少了200多公吨。
2007年12月英语六级真题
四级The Newsweek list of top U. S. high schools was made this year, as in years past, according to a single metric, the proportion of students taking college-level exams.
与往年一样,《新闻周刊》今年公布了美国顶尖高中的名单,根据一个单一的指标,即参加大学水平考试的学生比例。
2012年6月英语四级考试真题
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