Lesson 18 What are their jobs? 他们是做什么工作的？
　　
　　选择疑问句
　　Are you a teacher or a student?
　　Are you teachers or students?
　　We are not teachers. We are students.
　　Are they mechanics or hairdressers?
　　They aren’t hairdressers. They are mechanics.
　　
　　★ Text
　　Lesson seventeen: How do you do?
　　Come and meet our employees, Mr. Richwrds.
　　Thank you, Mr. Jackson.
　　
　　This is Nicola Grey, and this is Claire Taylor.
　　How do you do?
　　
　　Those women are very hard-working. What are their jobs?
　　They’re keyboard operators.
　　
　　This is Michael Baker, and this is Jeremy Short.
　　How do you do?
　　
　　They are’t very busy! What are their jobs?
　　They’re sales reps. They are very lazy.
　　
　　Who is this young man?
　　This is Jim. He is our office assistant.
　　
　　
　　音标学习：双元音
　　/ai/ price／white／quite／ride／fight／mind
　　/ei/ hate／waste／game／snake／plate／shame
　　/Ci/ boy／soil／choice／join／noise／employ
　　
　　price 价格 white 白色的 quite 相当 ride 骑 flight 战斗 mind 介意
　　hate 狠 waste 浪费 game 游戏 snake 蛇 plate 盘子 shame 害羞
　　boy 男孩 soil 土壤 choice 选择 join 加入 noise 噪音 employ 雇用
　　
　　这几个音标叫：合口双元音
　　双元音即由两个元音组成的音标，发音时注意嘴形的变化，其特点是：
　　1、前重后轻
　　2、从第一个音滑到第二个音
　　
　　make／lake／take／sake／wake／snake／shame
　　line／time／price／ride
　　cat /kAt/
　　late /leit/
　　
　　发音规则小结：
　　五个元音字母在单词中处于倒数第三位的位置，并且单词的末尾是e ，则这五个元音字母都发其字母音。
　　
　　开音节／闭音节
　　在单词中发它本身的字母音就叫开音节，发其它音的就是闭音节。
　　动词的重读闭音节就是所谓的元音字母不是发它本身的字母音。