英语语法-现在完成时讲解培训资料
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第六讲现在完成时
1.概念:
1)、表示动作或状态在过去已经开始, 持续到现在, 也许还要持续下去,常和for, since, 连用, 表示持续的动作或状态多为延续性动词.
eg: We have lived here since 2000.
自从2000年以来我们一直住在这里. ( 说明一直住在这里, 也许还会住下去. )
She has worked in Nanning for five years.
She has been ill for a week.
2)表示过去发生的或已经完成的某一动作对现在造成的影响或结果.
eg: I have lost my pen. 我把钢笔弄丢了. ( 过去某时丢的, 现在还没有找到)
I have already watched the TV play. 我已经看过这部电视剧了.
--- Have you had your lunch yet ? 你吃过午饭了吗?
--- Yes, I have just had it. 是的, 我刚吃过. ( 说明现在饱了)
2. 结构: 主语+ have / has + done + …
3. 句型: ⑴肯定句: ①主语+ have / has + done + …
eg:She has been to Shanghai. 她去过上海.
I have finished doing my homework. 我已经完成我的作业了.
⑵否定句: ①主语+ have / has + not +done + …
eg:I haven’t seen this film. 我没有看过这部电影.
eg:She hasn’t finished doing his homework. 她还没有完成她的作业.
⑶一般疑问句:① Have / Has + 主语+ done + …
eg: Have you seen this film ? Yes, I have. / No, I haven’t .
你看过这部电影吗? 是的, 看过. / 不, 没有.
eg:Has she finished do ing his homework ? Yes, she has . / No, she hasn’t.
她完成她的作业了吗? 是的, 完成了. / 不, 没有.
⑷特殊疑问句:①特殊疑问词+ have / has + 主语+ done + …
eg: When has you seen this film ? 你什么时候看的这部电影?
eg: Who has finished doing his homework ? 谁完成了作业?
4. 时间状语:典型的表时间的词与现在完成时连用,这些词有:
for 、since、already、yet、ever、never、recently、just、before、so far、by now、…
等连用.
注意: for+一段时间since+过去的某一个时间点
I have lived in Nanning for ten years.
I have lived in Nanning since ten years ago/ 2002.
I haven’t eaten anything for ten hours.
I ha haven’t eaten anything since 6am.
already :用于肯定句, 可放在助动词之后、过去分词之前,也可放在句末.
I have already finished my homework.
yet: 用在疑问句中意为”已经”, 用在否定句中表示”还”, 常放在句末.
Have you finished your homework yet?
I haven’t finished my homework yet.
ever: 曾经用于疑问句中:
Have you ever been to Beijing?
Have you ever been to Shanghai ? 你去过上海吗?
never: 未曾从未
I have never traveled by plane before. 我以前从来没有乘飞机旅行过.
recently:最近用于肯定否定疑问句中
I have been busy recently.
We have not seen Tom recently.
Have they been here recently.
eg: I have just seen Tom.
I haven’t heard of it before. 我以前从来没有听说过这件事.
They have planted 2000 trees so far.
The child has learned 100 English words by now.
5. 当与一段时间连用时, 经常用for 加一段时间, 这时候谓语动词一定要用延续性的.
非延续性动词----延续性动词
改错:They have got married for ten years. I have borrowed this book for a week.
get married--- be married borrow --- keep
come ---- be here go --- be away / off buy --- have
start / begin --- be on leave --- be away die --- be dead
arrive---be in/at join---be in /be a member of stop---be over
return----be back open/close---be closed/open