• 现在完成时和一般过去时的区别
• 现在完成时所表明的是过去发生的动作对现在的影响,强调的是现在的情况,不可以和表示过去的时间状语yesterday,in 1991,three days ago last time,last night等连用.
• 一般过去时表明的是过去发生的事实,和现在不发生关系.
• 5.现在完成时中的 for 与 since
• for + 时间段 与延续性动词的现在完成时连用
• since + 时间点/从句
• I have kept the library bookfor a week.= I have kept the library booksince aweek ago.
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期末送命题答错扣41分,你的期末考题还好吗?
内蒙古太仆寺旗宝昌一中2017-2018学年高二上学期期末考试英语试卷
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