Every year people celebrate the Spring Festival in China．Usually it is in January or February．It's the most important (重要的) festival in China．So before it comes，everyone buys many things，and they often make a special kind of food called dumplings—It means(意思是) “come together”．Parents always buy new clothes for their children and children also buy presents for their parents．On the Spring Festival eve (除夕)，all the family come back home. They sing, dance and play cards．When they enjoy the meal，they give each other the best wishes for the coming new year．All of them have a good time.

蚯蚓有“活犁耙”和’天然肥料加工厂”的美称，是因为它们的钻穴和取食等活动可使土壤变得更加疏松和肥沃，这说明生物的生存能____环境．

材料一：每当人们在中国文献中查找任何一个具体的科技史料时，往往会发现它的主要焦点就在宋代。恩格斯说：“现在已经毫无疑义地证实了，火药是从中国经过印度传给阿拉伯人，又由阿拉伯人和火药武器一道经过西班牙传入欧洲。

——英国学者李约瑟

材料二：这三种东西曾改变了整个世界的面貌和状态。第一种在文学方面，第二种在战争上，这种变化是如此之大，以至于没有一个帝国，没有一个教派，一个赫赫有名的人物能比这三种机械发明在人类的事业中产生更大的力量和影响。

——英国学者培根