distinguish... from. 辨别，把...和...区别开
be distinguished by 以...为特征
be distinguished for 因...而著称
【点拨】distinguish=tell常用于否定句，且常与can或could连用
I can’t tell the difference between the usages of “above all” and “first of all”
【典型例题】
It is not easy to ____ cultured pearls from genuine pearls.
A. distinguish B. separate C. identity D. recognize
【答案】A 考查distinguish的用法。
【点拨】distinguish... from. 辨别，把...和...区别开；separate---from把---隔开；identity辨别；recognize认出，这两个词后面都不跟from
考点二 convenient
