20160817—G72

新内容：
 
容易混淆的辅音
1. [v] [w]—vest west; vet wet; vine wine; very well
2. [s] [θ]—sink think; mass math; miss myth; sort thought
3. [z] [e]—close clothes; breeze breathe; base bathe
4. [n] [ŋ]—thin thing; sin sing; ran rang; ban bang; win wing


日常英语部分：
今天我们来学习一些西餐的词汇：
牛排steak  披萨pizza  意面pasta/spaghetti  薯条French fries  
汉堡包 hamburger/burger  沙拉salad  冰淇淋ice cream  
烤土司toast  培根bacon  香肠sausage  土豆泥mashed potatoes
谷物cereal  火腿ham