英语中how long, how soon和how often均可表示“多久”“多长时间”的意思，但含义不同，它们提问的对象也各不相同。 一、how long是对一个延续性动作或状态所占用的时间进行提问。例如：
1.My uncle has lived in Shenyang for ten years. (对划线部分提问)
How long has your uncle lived in Shenyang?
2.It took me half an hour to work out the maths problem. (对划线部分提问)
How long did it take you to work out the maths problem?
二、how soon是对一个从现在起到将来某一动作结束或发生的这一段时间有多久进行提问，回答常用“in+一段时间”。例如：
1.We will be ready in two hours. (对划线部分提问)
How soon will you be ready?
2.His father can come back in a week. （对划线部分提问）
How soon can his father come back?
三、how often则是对一段时间内某一动作发生的次数，即“频率”进行提问。例如：
1. She gets a letter from her mother once a month. (对划线部分提问)
How often does she get a letter from her mother?
2. We have a sports meeting twice a year.(对划线部分提问)
How often do you have a sports meeting?
【链接中考】单项选择。
1.―Rita, your Chinese is very good______have you been in China?
―Since I was five.(重庆市)
A.How longB.How farC.How soon D.How often
2.―_________has your brother studied in New York?
―For two years. (福州市)
A. How far B.How old
C. How often D.How long
3. ―_________ have you stayed in Shanghai?
―For about two months.(温州市)
A. How often B.How long
C.How soonD.How far
4．―______ do you water the plants?
―Twice a day. (宁波市)
A. How B.How soon
C.How often D.How much
5．―________ do you visit your grandparents?
―Once a week.（芜湖市)
A. How B.How soon
C.How often D.How many
Keys: 1―5ADBCC