7、刚刚),ever(曾经),never,for+时间段,since+时间点等词或短语连用.already:常用于肯定句中.yet:常用于否定句,疑问句尾.3)表示从过去开始并持续到现在的动作或状态,常与包括现在在内的一段时间的状语连用。ShehaslearnedEnglishfor5years.HehaslivedinBeijingsince5yearsago.since:(自…以来)1)since+时间点He has stayed heresince 5 o’clock.2)since+时间段+agoHe has s
8、tayed heresince 5 hours ago.3)since+从句She has taught Englishsince he came here.for:(长达)for+时间段Hehaskeptthebookfor2weeks.since,for的用法:Takenotes用for或since填空Mr.BrownhashadhisTV