【学习目标】:
1.掌握Page87-88的单词，重点短语及句型。
2.自学理解文章内容。
3.通过合作探究，熟练掌握和运用下列句型。
5). Now whales are in danger because some people make their ocean home dirty and others kill whales for their meat.
6). Chinese tigers live in the south of china.
7). Chinese tigers are the oldest type of tigers living in the world .
