固安高中英语家教 暑假英语家教

固安高中英语家教 暑假英语家教

固安暑假高中英语家教 培训地址：固安县106国道东侧建行南100米 佳诚文化 固安暑假高中英语家教 辅导编号：May05- 2019 高中英语家教/初中英语家教/小学英语家教 固安县暑假英语家教 以课本为基础 又**课本，着重提高学生的英语听说读写的能力，为学生的英语学习打下坚实的学习基础。 初中英语教学讲解实例:比较since和for Since 用来说明动作起始时间，for用来说明动作延续时间长度。 I have lived here for more than twenty years. I have lived here since I was born.. My aunt has worked in a clinic since 1949. Some new oilfields have been opened up since 1976. I have known Xiao Li since she was a little girl. My brother has been in the Youth League for two years. I have not heard from my uncle for a long time. 注意:并非有for 作为时间状语的句子都用现在完成时。 I worked here for more than twenty years. (我现在已不在这里工作。) I have worked here for many years. (现在我仍在这里工作。) 培训地址：固安县106国道东侧建行南100米 佳诚文化 小窍门: 当现在完成时+一段时间，这一结构中，我们用下面的公式转化，很*就能排除非延续动词在完成时中的误使。培训地址：固安县106国道东侧建行南100米 佳诚文化 1) (对) Tom has studied Russian for three years. = Tom began to study Russian three years ago, and is still studying it now. 2) (错) Harry has got married for six years. = Harry began to get married six years ago, and is still getting married now. 显然，*二句不对，它应改为 Harry got married six years ago. 或 Harry has been married for six years. 培训地址：固安县106国道东侧建行南100米 佳诚文化 13. since的四种用法 1) since +过去一个时间点 (如具体的年、月、日期、钟点、1980, last month, half past six)。 I have been here since 1989. 2) since +一段时间+ ago I have been here since five months ago. 3) since +从句 Great changes have taken place since you left. Considerable time has elapsed since we have been here. 4) It is +一段时间+ since从句 It is two years since I became a postgraduate student.