副词（adverb,简写为adv）是指在句子中表示行为或状态特征的词,用以修饰动词、形容词、其他副词或全句,表示时间、地点、程度、方式等概念.副词可分为：地点副词、方式副词、程度副词、疑问副词和连接副词.
1) 时间和频率副词:
now,then,often,always,usually,early,today,late,next,lastday,already(已经),generally(一般地),frequently（频繁）,
seldom（很少地）,ever,never,yet,soon,too,immediately（立即）,finally,shortly（很快）,before,ago,sometimes,yesterday.once,twice
2) 地点副词:
here,there,everywhere,anywhere,somewhere,in,out,inside,outside,above,below,down,back,forward（向前地）,home,upstairs(楼上地),downstairs,across,along,round ,around,near,off,past,up,away,on.
3) 方式副词:
carefully,properly(适当地),anxiously(焦虑地),suddenly,normally(正常地),fast,well,calmly(冷静地),politely(有礼貌地),proudly(自豪地),softly,warmly ,slowly,badly,hard,bravely
4) 程度副词:
much,little,very,rather(相当),so,too,still,quite,perfectly(完美地),enough,extremely(非常),entirely(整个),almost,slightly(细小地),hardly.
5) 疑问副词:
how,when,where,why.
6) 关系副词:
when,where,why.等.
7) 连接副词:
therefore(因此),moreover(此外),however,otherwise(另外的),then,when ,where,how,why等.
