精选优质文档-倾情为你奉上频率副词:一般用来表示动作发生的频率。一般放在be动词之后或者助动词与主要动词之间 但sometimes、often等还可以放在句首或句尾,usually可放在句首,once可放在句尾,twice、three times等一般放在句尾。如:Sometimes I get up early.(我有时起得早)/ The workers usually have lunch at the factory.(工人们通常在厂里吃午饭) / Take this medicine twice a day.(这种药一天吃两次)1.频率副词是表示与次数,频率有关的副词,如:always(总是), usually(通常),frequently(经常) often (经常)sometimes(有时), seldom(不常),rarely(极少),never(从不) once(一次), twice(两次),等。2.频率副词等级 :all the time 100%;almost , always 90%;gener