英语时态有16种,请详细并举例说说在句中的用法?答:【注】 1) 含有界限意义的动词(Terminative Verb)如:begin,end,die,lose,find,fall,go,come,join等,以及含有瞬间意义的动词(Momentary Verb)如:knock,jump,strike,hit等,不能用于完成时的第二种用法。(参见第七讲7-2)例如:不可说:He has joined the army for ten years.应该说:He has been an armyman...