英语现在完成时ppt

have been to/have gone to/have been in have been to 意思是“到过，去过”，去 了已回 have gone to 意思是“去了”，去了未 回 have been in 意思是“待在某地”归期 未知
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用Have been to, have gone to, have been in 填空
Exercise
1.-Have you B travelled on the train? Yes, I have. (A) never (B)ever (C)just (D)yet
2.-Have you C learned English? -Yes, I've learned a lot. (A) never,ever (B)ever,never (C)ever,already (D)a lready.ever
3. yet在现在完成时中的用法 否定句:句末 “还(没)” I haven’t had breakfast yet. 疑问句: 句末 “已经” Have you had breakfast yet? 4.before ,表示“之前，以前”，常置于句末 , 不受句型限制 I have seen this moive before.
4. He ______________ (play) soccer on the playground every day.
5. He ______________ (play) soccer on the playground tomorrow
afternoon.
6. He ______________ (play) soccer on the playground for a long time.
Present Perfect Tense
初中现在完成时
1. He ______________ (play) soccer on the playground now. 2. He ______________ (play) soccer on the playground yesterday. 3. He ______________ (play) soccer on the playground when I saw him yesterday.
for 3. Our teacher has studied Japanese ___three years. 4. She has been away from the city ___ for about ten y ears. 5. It’s about ten years since __ she left the city.
词…?
实义动词的过去分词：
规则变化（和过去式一样）
1、一般情况下,动词词尾加-ed,如：work—worked play—played want—wanted ask—asked
2、以不发音的-e结尾动词,动词词尾加-d,如 ： live—lived move—moved taste—tasted. 3、 以“辅音字母+y”结尾的动词,把y改成i,加 — ed,如：study—studied try—tried carry—carried 4、重读闭音节动词,双写词尾辅音字母,再 加—ed, 如：stop—stopped
7.up to now=so far, 迄今为止，到目前为止，
I have done so much works so far.
8.in/during the last/past +时间段， in/during the last five years,this city has changed a lot
定义 结构 标志词 非延续性动词的转换 Have 的动词词组如何区分
定义
※现在完成时表示过去发生或已经完成的动作 对现在造成的影响或结果 Someone has turned off the light. ※表示发生在过去某一时刻的动作,持续到现 在. I have lived there for five years
1.Mike and his parents have gone ___ to the north for half a year,and their home is still empty.
been to 2.I have__________ Beijing many times.
3.Mr. Brown has been inShanghai for three days.
。பைடு நூலகம்
不规则变化：
am/is-was-been do-did-done ride-rode-ridden come-came-come take-took-taken run- ran – run begin-began-begun
see-saw-seen
标志词
already，yet, never, ever ,before ,just
9.for +时间段 Mary has been ill for three days. Since+时间点 since+一段时间+ago I have lived here since 1998. I have lived here since ten years ago. It is+时段+since从句（过去时） 等于 It has been +时间段+ since从句
1.He got to Beijing five years ago. been He has ﹍﹍ ﹍ in Beijing for five years . 2.Maria borrowed this book three days ago . has kept Maria ﹍ ﹍ ﹍ this book for three days 3. The shop closed two hours ago. closedfor two hours . The shop has ﹍ been ﹍ ﹍
现在完成时的基本句型：
※肯定句：主语 + 助动词have/has + 动词的过去分词…
※否定句: 主语 + 助动词have/has + not + 动词的过去分词….
※ 一般疑问句：助动词Have/Has + 主语 + 动词的过去分词…? 肯定回答：Yes,主语+ have/has 否定回答： No，主语+ have/has not ※特殊疑问句：疑问词+助动词Have/Has + 主语 + 动词的过去分
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up to now, so far, for the last few weeks since for
1.already 表示已经，置于助动词之后和实 意动词之前，常用于肯定句； He has already left here. 他已经离开这里了。 2.just表示刚刚，置于助动词之后和实意动词 之前，常用于肯定句。 I have just finished my homework.
For since
非延续性动词转换成延续性
※非延续性动词：动作一经发生即告结束，不与一
段时间连用 ※延续性 ：动作发生后还可以持续一段时间，可 以与一段时间连用
现在完成时表示的是过去的一个动作一直持续到现 在，如果与一段时间连用时，谓语动词必须是延续 性动词，或者就是非延续性动词转换成延续性动词
come—be here; go—be there; close—be closed; open—be open; buy—have; borrow —keep; leave—be away; begin—be on; finish—be over; die—be dead etc.
5、never 表示“从来没有“，置于助动词之后和实 意动词之前，常用于肯定句表示否定 We have never been to the Great Wall. 我们从来没有去过长城。
6、ever 表示“曾经”置于助动词之后和实意动词之前，

用于疑问句，
Have you ever been to Canada? 你们曾经去过加拿大吗？