二、重点讲解

　　1. The potato chips were invented by mistakes.土豆条被误打误撞地发明了。

　　by mistake错误地；make mistakes犯错误、出错；mistake…for把…错当成

　　如：Li Lei took my umbrella by mistake.

　　Lily made few mistakes in the English exam.

　　We often mistake the twins for each other.

　　2. Did you know the tea，the most popular drink in the world，was invented by accident？你知道茶——世界上最受欢迎的饮料是被偶然发现的吗？

　　by accident=by chance=accidentally偶然的、无意中。如：Cathy met his classmate on the way to the shop by accident.

　　3.…this beverage was discovered over three thousand years before that.

　　discover与find的区别：

　　find指寻找的结果即“发现、找到”。如：The girl was looking for her wallet， at last she found it under her desk.

　　discover表示“偶然或经过努力发现客观存在的事物、真理或错误”。

　　如：Columbus discovered America in 1492.哥伦布于1492年发现了美洲。

　　4. According to an ancient Chinese legend，……按照中国古老的传说……

　　according to 依照、按照、根据

　　如：According to what he said，we know he was interested in pop music.根据他所说的，我们知道他喜欢流行音乐。

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