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1、英语中“频率”的相关用法一、确定频率：(1). 次数a时间计量单位（dayweekmonthyear）一周一次 once a week一个月两次 twice a month 一年三次 three times a year(补充知识点：次数：once一次，twice两次，three times三次，之后都是数字timestime：做不可数名词表示“时间”，有“s”的时候表示“次数”)(2). every时间单位（eg. two days/ three months）两周一次 every two weeks三个月一次 every three months二、表示频率的程度:程度从大到小总是 alw
2、ays all the time经常 usually时常 often偶尔 sometimes几乎不 hardly ever从不 never三、频率的使用方法:表示程度的单词和词组放在实义动词前，修饰动作He always goes to the theatre on Friday nights.表示确定频率的词组，要放在句尾。I got the chances to travel abroad once a month.四、询问事情发生的频率询问事情发生频率的特殊疑问词是：How oftenHow often +do（助动词）+要询问的事How often do you go to libra
3、ry? 助动词do要根据时态和人称进行变化：单三：how often doesHow often does he visit you?过去时：how often did How often did you come back home?将来时：how often willHow often will you go to gym?五、情景对话：Cathy: Talking about family. How often do you go back to see your parents? 说道家人，你多长时间回家看父母一次？Ying: As often as I can, about three times a year. 我尽量多回去，大约每年三次吧。
