Howlonghaveyoubeendoingsth及答语例析.doc

关于句式How long have you been doing sth及答语例析

—_______ have you been reading?
—I’ve been reading for two hours?
A. How soon B. How often
C. How long D. How many
【精析】此题考查对一段时间提问的方式，常用how long；A项how soon询问将来时间，意为“多久”；B项how often询问频率，表示“多长时间一次”； D项询问可数名词的数量。
【答案】C

—How long have you been here?
—I’ve been here_________.
A. since two years B. since two years ago
C. for two years ago D. for two year
【精析】此题中与现在完成时连用的时间短语有两种方式，即for two years/since two years ago.
【答案】B

对划线部分提问
I’ve been skating since I was five Years old.
_________ _________ _________ you been skating?
【精析】since连接的句子表示“从五岁到现在”，属一段时间，故用how long提问。
【答案】How long have