master/masterpiece/headmaster/owner/ownership/own/owe
记忆：
1. master [ 5mB:stE ] n. 主人, 师傅, 大师, 硕士, <称呼>少爷 vt. 征服, 控制, 精通 No one can be our master, for we are the masters of ourselves. 没有人能成为我们的主人，因为我们是自己的主人。 格言： Better master one than engage with ten.会十事，不如精一事。 He that is master of himself will soon be master of others. 会自控者控制他人。
2. masterpiece [ 5mB:stEpi:s] n. 杰作, 名著 Everyone can benefit a lot from the world’s masterpieces.每个人都能从世界杰作中获益。
3. headmaster [hed5mB:stE(r)] n. 英国中小学校长 The headmaster called on all the students to learn from her.校长号召所有的学生向她学习。
4. owner [ 5EunE ] n. 所有者, 业主 We may ask the police to find the owner of the cell phone. 我们可以请警察去查找这手机的主人。
5. ownership [ 5EunEFip ] n. 所有制 The ownership of the land requires reforming.土地所有制需要改革。
6. own [ Eun ] adj. 自己的, 特有的 vt. 拥有 Not everything needs to be seen with our own eyes before we believe it.不是每样东西都需要亲眼看到后才相信。
7. owe [ Eu ] vt.欠(债等), 感激, 把...归功于 vi. 欠,应感激,应该把…归功于(to) How much do I owe you?我该付你多少？
8. owing to 由于, 因...之缘故 Owing to his advice, everything goes well these days.由于他的建议，这些日子一切进展顺利。
另类阅读：
The headmaster owns some masterpieces on the national ownership. He owes his achievements to the inspiration the masters brought him. He has also created some good works of his own.

轻松一刻
Six people were travelling in a compartment on a train. Five of them were quiet and well behaved, but the sixth was a rude young man who was causing a lot of trouble to the other passengers.
At last this young man got out at a station with his two heavy bags. None of the other passengers helped him, but one of them waited until the rude young man was very far away and then opened the window and shouted to him, "You left something behind in the compartment!" Then he closed the window again.
The young man turned around and hurried back with his two bags. He was very tired when he arrived, but he shouted through the window, "What did I leave behind?"
As the train began to move again, the passenger who had called him back opened the window and said, "A very bad impression!"