Task 2 What can dogs do? Word tips: sniffer dog(用于探查毒品和炸药的)嗅探犬 e.g. The police used sniffer dogs to hunt down the criminals. imitate v. 模仿 (copy) e.g. When one company has an innovative product, other companies imitate it. puppy n. 小狗 (a young dog) e.g. He gives her a puppy for her birthday present. Questions 1.