2017届高考英语一轮复习教案：3.2《Healthy eating》（人教版必修3）_高考复习指南

　　I hope to write to you before long.

　　我希望不久就能给你写信。

　　●用法拓展

　　long before很久以前

　　ever after从此以后(用于一般过去时)

　　ever since从此以后(用于现在完成时)

　　●易混辨析

　　before long与long before

　　before long是“不久以后”的意思，可用于任何时态。如：

　　At the time I had fully expected to find work before long.

　　那个时候我还一心盼望不久就可找到工作。

　　long before是“很久以前”的意思。单独使用，一般用在过去完成时的句子里。

　　She said she had seen the film long before.

　　她说她很久以前就看过这部电影。即境活用翻译句子

　　①他很快也能用英语谈论政治了。

　　________________________________________________________________________

　　②曾经报道过很久以前该地区暴发过一次这样的疾病。

　　________________________________________________________________________

　　答案：①Before long he would be able to talk about politics in English.

　　②It was reported that the disease had broken out in this area long before.

　　3．have sb. doing sth.

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