頻度副詞。how often用來(lái)提問(wèn)某動(dòng)作或狀態(tài)發(fā)生的頻率,對(duì)“一段時(shí)間內(nèi)發(fā)生了幾次活動(dòng)”（always,usually,often,never或twiceaday等表示頻度的詞或短語(yǔ)）提問(wèn)時(shí)用；

how often用法是什么

意為“多久……次，是否經(jīng)常”，主要用來(lái)對(duì)動(dòng)作發(fā)生的頻率進(jìn)行提問(wèn)，用來(lái)提問(wèn)某動(dòng)作或者狀態(tài)發(fā)生的頻率，指的是“一段時(shí)間內(nèi)發(fā)生了幾次活動(dòng)”。

即在某一特定的時(shí)間進(jìn)行某個(gè)動(dòng)作的次數(shù)。

如：How often do you visit your grandma?你多長(zhǎng)時(shí)間去看你的奶奶？

How often do you go to see a film?你多長(zhǎng)時(shí)間看一次電影？

答語(yǔ)通常是always,usually,often,sometimes,once/twice a day/month/year等。

如：I visit my grandparents twice a year。

I go to see a film three times a month。

how often的用法例句

1.how often指“每隔多久,多久一次做...”，主要用來(lái)對(duì)頻度副詞或狀語(yǔ)(如：once a day, three times a week 等)提問(wèn)。

How often does he come here? 他(每隔)多久來(lái)一次?

Once a month. 每月一次。

How often do you visit your mother? 你多長(zhǎng)時(shí)間看你媽媽一次?

Once a week. 一周一次。

2.用來(lái)提問(wèn)某動(dòng)作或者狀態(tài)發(fā)生的頻率，指的是“一段時(shí)間內(nèi)發(fā)生了幾次活動(dòng)”。

How often do your parents let you to watch TV.你的父母多久讓你看一次電視?

3.注意和how soon,how long的區(qū)別，how soon主要是對(duì)“多快，多久”提問(wèn)?

How soon will you come back?how long是就 "一段時(shí)間"提問(wèn)的，how long have you lived here?