根据下面每句句意、汉语提示及英语解释，写出空白处所缺单词的正确形式；每空一词。

1．Plants and ________（动物），including human beings need water and food．

2．We should be careful with time and not ________（浪费）it．

3．________（绿色的）food is healthy and environmentally-friendly．

4．Parents should not ________（say loudly）at but reason with their children．

5．Jay Chou is my favorite ________（a person who sings in public）．