how long和how often 有什么区别（还不清楚）
how long和how often 有什么区别（还不清楚）你做老师多久了？How long have you been a teacher?For ten years.你学英语多久了?十年了。
今天来看几组常用疑问副词辨析:
how long， how soon， how often，how far，how many 和how much。
how long:多久，多长时间，对一个持续的时间段提问，常用for 时间段和since 时间点来回答。例句:
How long have you learned English?
For ten years.
你学英语多久了?
十年了。
How long have you been a teacher?
你做老师多久了？
I have been a teacher since two years ago.
我从两年前就当老师了。
How long have you been in China?
你来中国多久了？
For two weeks.
2周了。
how soon: 多快，多久以后，对一个短暂性动作提问，用于一般将来时的句子当中，常用in 时间段来回答:
How soon will you come back?
In five minutes.
你多久以后会回来？
五分钟以后。
How soon will he graduate?
In one month.
他多久会毕业？
一个月后毕业。
how often:多长时间一次，对频率提问，常用once ，twice ，three times a day/week等回答:
How often do you go to the movies? 你多久去看一次电影?
once a year.一年一次。
How often do you swim?
你多久游泳一次？
Twice a month.
一月两次。
How often do you exercise?
你多久锻炼一次？
Every day./Three times a week .
天天锻炼。/一周三次。
How far:多远，对距离提问
How far is it from your home to the supermarket?
你家离超市有多远？
About 100 meters。
大概100米。
how many:多少，后面跟可数名词复数:
How many sons do you have?
你有几个儿子?
Two.
两个。
How many students are there in Class Three?
3班有多少学生？
Fifty. 五十个。
how much:多少，后面跟不可数名词，常用来询问价钱。有单数句和复数句。
How much is the hat?
这顶帽子多少钱？
It's twenty yuan.
20元。
How much are these socks?
这些袜子多少钱？
They are Five yuan.
五块钱。
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