Ⅰ.词汇万花筒。（15分）
A.根据题意及首字母提示填空(5分)
1.Elephants are the most e_________ animals in the world.
2.That zoo is s_________ for animals to live in.
3.It's important to r______ paper to save the trees.
4.Most people are a__________ putting animals in the zoo.
5.The a_______ animals should be put in cages.
