Unit 10 语法课件 2022-2023学年人教版八年级英语下册

英语傲学课件系列 八年级下册(unit10)语法 现在完成时（带有since,.for和how long) Go for iat 知识精讲 月 现在完成时态 acau since的用法 how long 提问 for的用法 Macau returned to the motherland on 12,20, 1999. S0 it has been back to the motherland for many years for用于现在完成时态时,应与一段时间连用. 肯定句中谓语动词必须是可延续性动词. e.g.I have waited for you here for 2 hours Mr. Wang has worked in this factory for nearly 20 years. We haven't seen each other for so many years! e.g.We have learned English for nearly 6 years. We have learned English since 2013. We have learned English since we were in Grade 3. We have learned English since 6 years ago. +过去的时间 since“自从”用于现 在完成时态，肯定句 +句子（一般过去时） 中的谓语动词必须是 可延续性动词。 +一段时间+ag0 短暂性动词与延续性动词的转换 动作（短暂性） 状态（延续性） come/arrive at/reach/get to be in/at leave/go be away (from...) buy have borrow keep begin be on open close be open be closed 短暂性动词与延续性动词的转换 动作（短暂性） 状态（延续性） join the army/Party/League be a soldier/Party member /League member end、finish be over marry be married die be dead Jack has arrived at school. Jack has been at school for an hour. I have bought a new CD. I have had this new CD since I got some pocket money last time. This drug shop has opened/closed. This drug shop has been open/closed since 2003. My brother has joined the army. My brother has been a soldier for 3 years. 典型应用