A woman was lucky. One day, she had a chance to visit 1 the hell(地狱) and the heaven(天堂).

    An angel(天使) took her to the hell first. The woman 2 a table in the hell. There was lots of food on the table. Many people sat around the table, but they felt 3^. They were hungry." Why are they still hungry with so much food here?" she asked the angel.

    "Look at their 4," the angel said. The people held 5 chopsticks(筷子) in their hands. They used the chopsticks to 6 the food. But the chopsticks were so long that they couldn't 7 the food to their mouths.

    Then the angel took her to the heaven. There was a table and there was food on it, too. They 8 used long chopsticks. People there felt happy. They weren't hungry 9 they learned to feed each other.

    That's the 10 between the hell and the heaven. Can you understand it?

阅读《送东阳马生序》选段，完成下列各题。

       ①余幼时即嗜学。家贫，无从致书以观，每假借于藏书之家，手自笔录，计日以还。天大寒，砚冰坚，手指不可屈伸，弗之怠。录毕，走送之，不敢稍逾约。以是人多以书假余，余因得遍观群书。既加冠，益慕圣贤之道。又患无硕师名人与游，尝趋百里外从乡之先达执经叩问。先达德隆望尊，门人弟子填其室，未尝稍降辞色。余立侍左右，援疑质理，俯身倾耳以请；或遇其叱咄，色愈恭，礼愈至，不敢出一言以复；俟其欣悦，则又请焉。故余虽愚，卒获有所闻。

       ②当余之从师也，负箧曳屣，行深山巨谷中，穷冬烈风，大雪深数尺，足肤皲裂而不知。至舍，四支僵劲不能动，媵人持汤沃灌，以衾拥覆，久而乃和。寓逆旅主人，日再食，无鲜肥滋味之享。同舍生皆被绮绣，戴朱缨宝饰之帽，腰白玉之环，左佩刀，右备容臭，烨然若神人；余则缦袍敝衣处其间，略无慕艳意。以中有足乐者，不知口体之奉不若人也。盖余之勤且艰若此。

生物圈养育着万物生灵，人和各种生物共同生活在这个大家庭里，它们各自承担着不同的角色。下面承担分解者角色的是(    )
①淡水中的衣藻　②高山上的油松　③土壤中的细菌　④朽木上的蘑菇　
⑤树上的麻雀   ⑥河边的青蛙　 ⑦池塘里的蠕虫 ⑧树叶上的毛毛虫