howlong和howfar区别
how long的意思是多长,询问动作在时间上所持续的长度;how far的意思是多远,一般引导提问路程的特殊疑问句。它们都是属于英语的概念,而英语已经发展了1400多年。英语的最早形式是由盎格鲁-撒克逊人移民于5世纪带到英国的一组西日耳曼语支(Ingvaeonic)方言,被统称为古英语。
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.
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