1、含义不同
How many times:多少次;几次;提问次数。
How often:多长时间一次。
2、询问对象不同
How many times:询问次数
How many times has your mother told you never to talk to strangers?
你母亲告诉你多少次了,绝不能和陌生人谈话?
How often:询问频率
How often do you brush your teeth?
你多久刷一次牙?
3、侧重点不同
How many times:用来询问动作发生的次数。其提问部分或答语部分往往是表示次数的once, twicey以及three times, ten times等“基数词+times等结构。
How often:用来对动作在时间上所发生的频率提问,其提问部分或答语部分往往是频度副词或every day, every week等。
how many times
1、How many times Ive told you!
我跟你说过不知多少次了。
2、How many times do I have to spell it out?
我要仔仔细细讲多少遍?
3、I dont know how many times he comes a day.
他一天不定来多少次。
how often
1、No matter how often they turn up, their welcome never wears out.
不管他们多久露面一次,都永远那么受欢迎。
2、I don't know how often I heard the same awful jokes.
这种千篇一律的烂笑话我不知道听过多少回了。
3、No matter how often they were urged, they could not bring themselves to join in.
就算别人说破了嘴皮,他们就是不加入。