题目内容
2.Mr.Smith has worked in the factory for 30years.(对划线部分提问)Howlong has Mr.Smith worked in the factory?
分析 史密斯先生在这家工厂已经工作三十年了.
史密斯先生在这家工厂工作多久了?
解答 答案:How; long.
划线部分是for 30 years是一段时间,提问用疑问词组how long表示多久,故答案是How long.
点评 how long意为"多久、多长时间",主要是对一段时间进行提问,答语通常是(for)three days/weeks/months等时间段,它可用于各种时态.
How long do you stay in Beijing every year?每年你在北京住多久?
How long have they lived here?他们住在这里有多久了?
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