3. 时间副词

(1) Time时候： 可以用作when的答语， 如： late ( = at a late time)， now ( = at this time)， presently (= at the present time)， then ( = at that time)， just， nowadays， today， etc.

Ive just heard that you are leaving us. ( = at this very moment)

Nowadays， many teenagers have long hair. ( = at the present time)

注： 两个以上表时间的副词须依单位小的时间+单位大的时间排列。

Ill see you at nine on Monday.

(2) Duration期间 ： 用来作how long的答语，如：

momentarily， temporarily， for many weeks， long， from May till August， etc.

Has he been ill long? Yes， he has been ill since the end of May.

He was away from school (for) four or five weeks.

(3) Frequency频率： 用来作how often的答语，可分两种：

(A) 非限定频率：always， usually， often， sometimes， seldom， ever， etc.

The sun always rises in the east. My brother rarely writes to me.

(B) 限定频率：daily， hourly， monthly， annually， twice， everyday， once， etc.

I have been in Singapore once.

We have English lessons every other day.

注：以上三种时间副词在一起时，其顺序为期间+频率+时间。

【一定要知道英语语法】相关文章：

★ 高中英语语法-Brass ring 发财机会

★ 英语常用同义词的辨析S

★ 大学生常见的十大语法错误

★ 如何完美用英语表达书信中“谢谢”

★ 谈谈英语词汇中嫁接艺术

★ 英语写作两个要素:语言和思想

★ 如何写好英语句子

★ 实用英语写作指导

★ 英语形容词排列顺序

★ 英语写作的要诀