1. 常见的时间副词
常见的时间副有now, then, soon, ago, recently, lately, later, finally, before, early, today tomorrow, yesterday, tonight, suddenly, immediately, already, just 等。

 2. 时间副词在句中的位置
(1) 表确定时间的副词(如today, yesterday等)通常位于句末，有时也位于句首：He went home yesterday. / Yesterday he went home. 他昨天回家了。而那些表示非确定时间的副词(如 soon, recently, suddenly 等)则除可用于句末(最常见)或句首外，还可位于句中(通常位于实义动词之前，动词be、助动词、情态动词之后)：He went to Paris recently. / He recently went to Paris. / Recently he went to Paris. 最后他去了巴黎。(2) still, already, just 等几个表示时间的副词通常位于句中(等几个表示时间的副词实义动词之前，动词be、助动词、情态动词之后)：He's just left for school. 他刚刚去学校。I have already finished my work. 我已经做完了工作。still和already也可位于动词be、助动词等之前：She was still [still was] beautiful at the age of forty. 她到了40岁仍然很美。I already have told him about it. 我已经把情况告诉他了。still若用于否定句，则总是位于助动词之前：I still don't understand what you mean. 我还是不明白你的意思。另外，still 和already 还可位于句末，表示惊奇：Are you on page one still? 你还在看第1页？Is your mother back already? 你妈妈就已经回来了？