ever、never、rarely、seldom、once,、often、occasionally、 constantly、 frequently等。

一、ever英 ['ev?(r)] 美 ['ev?r]

adv. 曾經(jīng)；在任何時(shí)候；究竟；一直；永遠(yuǎn)

示例：Nothing ever happens in this village.

這村里從來(lái)沒(méi)有發(fā)生過(guò)什么事情。

二、rarely英 ['re?li] 美 ['rerli]

adv. 很少；難得

示例：She rarely went anywhere except to her office.

她除了去辦公室以外, 很少去別的地方。

三、seldom英 ['seld?m] 美 ['seld?m]

adv. 很少；難得

示例：The apple tree is seldom fruitful.

這棵蘋(píng)果樹(shù)很少結(jié)果。

四、always英 ['??lwe?z] 美 ['??lwe?z]

adv. 總是；一直；始終；永遠(yuǎn)；隨時(shí)；無(wú)論如何

示例：A live band is always a good draw at a party.

現(xiàn)場(chǎng)演奏的樂(lè)隊(duì)在聚會(huì)上總是很吸引人的。

五、often英 ['?fn] 美 ['??fn]

adv. 經(jīng)常；時(shí)常；屢次

示例：I often take my children to play in the park.

我經(jīng)常帶我的孩子們?nèi)ス珗@玩。