先通读下面的短文，掌握其大意，然后从A、B C、D四个选项中选择可以填入空白处的最佳答案。

    Tom began to learn to cook when he was six years old. At that time,he was ill in hospital．During the first three days there,Tom1a lot of TV cartoons and felt bored with them．Then he visited the Internet for fun．He 2an interesting website(网站)．It taught people how to cook．Tom was very3the pictures on the website and fell in love with(爱上)cooking．4he got better,Tom went back home and tried to learn to cook by himself．Tom spent most of his free time learning5to cook．He tried a lot of recipes(食谱)．

    Now after five years of6．Tom is a famous cook in his town．He also uses his cooking to make money7poor children in his town．He's already given them more than 10,000 dollars．He8has his own book to teach people to cook food．The book is quite popular．"When you9to do something，try your best to do it．Then you will be10one day!"said Tom．

某研究所根据水果在不同硬朗程度时释放的某挥发性化合物的浓度变化，经过多次试验，制成了一种能“感知”水果成熟程度的标签。这一研究佐证了（    ）

①人为事物的联系是意识活动的直接产物    ②意识主动性是人们认识世界的重要条件

③实践活动可以创造出新的物质生活资料    ④从认识到实践、再从实践到认识的过程