发布网友 发布时间:2022-05-17 10:30
共2个回答
热心网友 时间:2023-10-19 04:29
这三个搭配均可表示“多久”的意思,但它们意思有区别。现解释如下:一、关于how long的用法how long有以下两个主要意思:1. 表示多长时间,主要用来对一段时间(如three days, four weeks 等)提问。如:A:How long did he stay here? 他在这儿呆了多久?B:About two weeks. 大约两个星期。A:How long does it take to get to London from here? 从这里到伦敦要多长时间?B:At least ten hours. 至少要10个小时。2. 表示某东西有多长。如:A:How long is the river? 这条河有多长?B:About 500 km. 大约500千米。二、关于how often的用法how often 指每隔多久,主要用来对频度副词或状语(如:once a week, three times a month 等)提问。如:A:How often does he come here? 他(每隔)多久来一次?B:Once a month. 每月一次。A:How often do you visit your mother? 你多长时间看你妈妈一次?B:Once a week. 一周一次。三、关于how soon的用法how soon 指再过多久,主要用来对表示将来的一段时间(如:in an hour, in two weeks 等)提问。如:A:How soon will he be back? 他要多久才回来?B:In an hour. 1 小时以后。A:How soon shall we know the results? 我们多久能知道结果?B:I don’t know. 我不知道。热心网友 时间:2023-10-19 04:29
how soon 表“多快”:How soon will he come here?how long 表“多久”:How long have you been there?how often 表“频率”:How often do you play baseball?