20160712—G70

单元音 [u] 嘴唇张开略向前突出，嘴形稍收圆并放松些，舌头后缩。
字母o可以发[u] —wolf, woman
字母u 可以发[u]—bull, cushion, full, Jupiter, put, pull, push, sugar
字母组合oo—bedroom, book, cook, good, hook, look, oops, stood, took, wood, wool
字母组合ou—could, should, would 
2. Conversation 会话
A: Hello, where are you from?
B: Oh, I’m English.
A: Really? Which part do you come from?
B: Well, I live in London, but I was born in Manchester.
A: Oh!