表示时间的前缀：

1.fore-：before 前、预先

forecast v.& n.预测;预示

例句：

Such events may forecast an outbreak of war.

这些事件可能预示着战争的爆发。

foretell v.预言;预告

例句：

We can't foretell how the world will end.

我们不能预言世界将如何终结。

foreground n.前景

例句：

The figure in the foreground is the artist's mother.

图画前景中的人是画家的母亲。

foresee vt.预见;预知

例句：

It is difficult to foresee the consequences that may arise from this action.

预见这一行动可能产生的后果是困难的。

2.pre-：before 之前

prehistory n.史前

例句：

In the long period,the researches of prehistory are abundant.

在漫长的时间长河中，对于史前文明的研究可谓浩瀚如星海。

prerequisite n.先决条件;

例句：

Good self-esteem is a prerequisite for a happy life.

良好的自尊心是幸福生活的先决条件。

prelude n.序言前奏曲;序幕

例句：

The rural reform has opened the prelude of China's reform and opening-up.

农村改革揭开了中国改革开放的序幕。

3.pro-：预先的

prologue n.序言，序幕;

例句：

The prologue of the book is a famous writer.

这本书的序言是由一个著名作家写的。

prophet n.先知，预言家

E.g.He holds the belief that he is a latter-day prophet.

他深信自己是当代先知。

4.post-：after 之后

postwar n.战后

例句：

During the postwar years in Germany,many honors were heaped upon Einstein.

在战后的岁月里，爱因斯坦在德国得到了种种荣誉。

postgraduate n.研究生

例句：

She has satisfied the entrance requirements for a po