[课文原句] It’sbeen six years since we last saw each other, you know. (page 32) [译文] 要知道,我们六年没见面了。 [分析] 句型“It is/ has been + 一段时间 + since从句”用法如下: (1) 当从句谓语动词为非延续性动词时,表示这段时间从该动作开始时算起,即“自从做……以来已经多久了”。 (2) 当从句谓语动词为延续性动词时,表示这段时间从动作结束时算起,即“自从不做……以来已经多久了”。 (3) 从句通常用一般过去时。例如: It is two years since he joined the army. 他参军两年了。 (从参军那一刻算起) It is two years since he was a soldier. 他退役两年了。 (从他不再是士兵算起) 【注意】 如果表示过去的情况,主句用一般过去时,从句用过去完成时;或主句用过去完成时,从句用一般过去时。例如: It was three years since Jack had been a teacher. 杰克不当老师已经三年了。 [练习] 句型仿写。 ①李明退团半个月了。 It is half a month since Li Ming ____________. ②我上次离开伦敦至今颇有一段时间了。 It has been quite some time since I _____________. ③我两年没有抽烟了。 It’s two years since I _____________________. Key: ① was a League member ② was last in London ③ smoked
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