how long,how soon,how far 怎们用?

1。how long“多长”,询问动作在时间上所持续的长度。其答语部分或划线部分可能是：1）“for + 时间段”,有时可能没有介词for。如：---How long did he wait for you here?他在这儿等了你多久?--- For two hours。两个小时。It took him 20 minutes to finish his homework。(对话线部分提问)→How long did it take him to finish his homework?2）“since + 具体时间”,“since + 时间段 + ago”或者“since + 从句”。如：---How long are you feeling like this?像这样已经多久了?---Since last night。从昨晚到现在。3）表示时间的between…and…,from…to…等介词短语。如：They were playing football from 9:00 to 10:00 yesterday。(对话线部分提问)→How long were they playing football yesterday?另外,how long也可以询问某事物的具体长度。如：---How long is the desk?这张桌子有多长?---1。2 meters。1。2米。2。how soon“多久,多快”,询问动作在将来要经过多长时间才会发生。其答语部分或划线部分可能是：in + 时间段。如：He’s going to Zhengzhou in two days。(对话线部分提问)→How soon is he going to Zhengzhou?3。how far“多远”,询问路程、距离。如：How far is it from here to school?从这儿到学校有多远?