按要求为下面的词语分类。   

茄子      老虎     杨树      白菜      豆角      柳树      鸽子      松树

黄瓜      马铃薯 海龟     榕树       黑熊  

1．蔬菜：                                                                                                                                          

2．树木：                                                                                                                                         

3．动物：