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1词组 1. how long, how often, how soon (1)how long指多长时间,主要用来对一段时间(如three days, four weeks 等)提问?如:How long ago was it? 这是多久前的事了? (2)how often指每隔多久,主要用来对频率副词或状语(如once a week等)提问?如:—How often does he come here? —Once a month. 他(每隔)多久来一次?每月一次。 (3)how soon指再过多久,主要用来对表示将来的一段时间(in an hour, in two weeks 等)提问?如:How soon can you come? 你多快能赶来? 2. few, a few, little, a little, several, some (1)few 和little的意思是否定的,表示“很少”或“几乎没有”;而a few和a little的意思是肯定的,表示“有一些,有一点儿” (2)few 和 a few修饰可数名词;little 和 a little 修饰不可数名词 (3)several用于修饰可数名词,语意比a few和some更肯定,含有“好几个”的意思 (4)some可修饰可数名词,也可修饰不可数名词,从数量上说,它有时相当于a few 或 a little,有时指更多一些的数量 (责任编辑:admin) |