介词from的基本意思是: “从……，来自，与……分离”可以表示时间，地点，方式;也可以表示原因，译作“因为”。

1.作状语

From then on, he had a pair of fire eyes with golden pupils.

从那时起，他就练就了一双“火眼金睛”。

After sharing the story online, I heard from someone,who identified the lady as Erin Smith.

在网上分享了那个故事之后，我就收到那个自称为依琳·史密斯的信件。

There is a good shop not far from here.

离这儿不远的地方有一个很好的商店。

At age 68, he retired from the post office, but be never stopped serving the community.

68岁的时候，他从邮局退休，但是从未停止为社区服务。

Apart from serving the customers, you'll also do the window dressing.

除了为顾客服务之外，你也得布置橱窗。

According to the passage, children's fear and dislike of books may result from being made to read aloud before others.

根据文章所述，孩子们对书的恐惧和不喜欢可能是因为被迫在他人面前大声朗读。

2.作补语

A lunchtime escape allows her to keep a boss from tapping her on the shoulder.

午餐时间离开单位可以让她远离老板，避开老板拍她的肩膀。

用from短语作补语的动词有:keep= stop= prevent=discourage意为:阻止

还有:protect... from...保护……不要……