"First of all," he began, "teacher told us that coal can"t be dug up anywhere. The right name for a place where coal can be got is a coalfield. In the ground under the coal-field there is coal.""Yes," said Willie, "but coal, like all other minerals,is always found in beds or layers. These beds are often many hundreds of feet down in the earth.""The mine has to be dug right down into the coal-bed," said Fred. "At first it is only a deep wide pit, going down, down, through all the beds that lie above the coal. This pit is called the shaft.
同类推荐
中学文科课程资源-诗中水
诗词是阐述心灵的文学艺术,而诗人、词人则需要掌握成熟的艺术技巧,并按照严格韵律要求,用凝练的语言、绵密的章法、充沛的情感以及丰富的意象来高度集中地表现社会生活和人类精神世界。中国诗起源于先秦,鼎盛于唐代。中国词起源于隋唐,流行于宋代。
热门推荐
关公为什么这样红:关公文化精神新解
《关公为什么这样红——修崃荣谈关公文化精神》依托中国社科院文学研究所研究员胡小伟的研究成果,重点解读了关公“惟正是忠为正而义”的正义观,辨正了“大意失荆州”传统说法,阐释了弘扬关公文化的当代文化意义和社会意义。作者认为,关羽死后逐步被神化,最终成为“武圣”,这是人民的最终选择,也是关羽践行孟子所说的“大丈夫”精神的必然结果。关公信仰作为全世界华人的共同信仰,具有“圆融儒释道,覆盖多民族,连通港澳台,护佑全华人”的力量,应作为中华优秀传统文化的一部分予以大力弘扬。