Lesson57Lead-in• wag • tail• grateful • thankful• put its ears straight upRevision• Does anyone have a pet? • What kinds of animals would you like to have as pets? Lesson Fifty-sevenThe father and the son rewarding 值得做的 humans 人 grateful 感激的；表示感谢的 wag one’s tail 摇……尾巴 feel less lonely 感到少一点孤独 success---succeed 成功 successful successfully1.What does your father do? ( mother, uncle, aunt )2. What does a doctor do?What does a doctor do?• A person who has been trained in medical science and who treats people who are ill.doctor, nurse, engineer, worker, teacher, sportsman, policeman, singer, dancer, artist, painter, judge, lawyer, writer, guide, journalist, businessman, officer, manager, scientist, inventor…3. What do you want to be when you grow up?My brother is an officer. But he wanted to be a teacher. He liked being a teacher. He thought to be a teacher was very rewarding. He thought it was very rewarding to be a teacher. What else do you think is rewarding? • Does anyone have a pet? • What kinds of animals would you like to have as pets?Do you think it’s rewarding to keep a pet? Why (not)?It can help a person feel less lonely. A pet doesn’t complain. It is very grateful ( thankful ) to its owner.When it wants to show it’s grateful, it wags its tail or puts its ears straight up. It gives people a lot of pleasure. It’s a friend of the owner and it’s like one of the family members. wag its tail wagging, wagged Sometimes a pet may fall ill. What should we do? We should send it to a special doctor --- a vet ( a doctor for animals ).Leading in • What do you want to be when you grow up?• What do you want to be a doctor for humans o...
