2b 部分答案
10—Adult pandas eat about 10 kilos of bamboo daily.
12—Adult pandas spend more than 12 hours a day eating.
300—About 300 pandas live in zoos or research centers in China and other countries.
2,000—Scientists say there are now fewer than 2,000 pandas living in the forests.
2c 部分答案
1. A panda keeper. 2. Milk.
3. Humans cut down bamboo forests. Pandas don't have many babies and baby pandas often die from illnesses and don't live very long.
4. It teaches children about pandas and other endangered wild animals.
5. They are doing research to better understand the habits of pandas.
（答案仅供参考）
2d 部分答案
1. keepers,prepare 2. fact, popular 3. often, illnesses
4. children,endangered 5. save, understand
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