The Present Perfect Tense 现在完成时 课件 (共22张PPT) 外研版英语八年级下册

(共22张PPT)
现在完成时
The Present PerfectTense
结构：
肯定形式：
否定形式：
一般疑问句：
肯定回答：
否定回答：
have/has（助动词）+done(动词的过去分词）
主语+have/has not+done
Have/Has+主语+done+其他？
Yes,主语+have/has.
No,主语+haven't/hasn't.
主语+have/has+done
特殊疑问词+have/has+主语+done其他？
eg: finish
finished
finished
我已经完成了我的家庭作业。
I have finished my homework.
I haven't finished my homework.
特殊疑问句：
造句
否定
Have you finished your homework
Yes, I have./No, I haven't.
She ________ finished her homework.
has
Has she finished her homework
Yes,she has./No,she hasn't.
一般疑问句
回答
一般疑问句
回答
意义：
1.过去已经发生的动作对现在的影响
eg: I have read this book.
eg: Have you found him yet
2.过去的动作持续到现在且有可能持续下去
eg: I haven't seen her these days.
eg: She has lived here for three years.
eg: She has taught me for ten years.
yet
标志词
eg: I have already got the main point.
eg:Have you finished your homework yet
eg: He has just taught us for one year.
eg: Has she ever fed (feed) the pet
eg:Have you been to Guangzhou before
请找出每句话中的现完标志词
already
yet
so far
in the past/ last few years
recently
before
just, ever, never
肯 句中/句尾
已经
已经；还
否/疑 句尾
迄今为止
在过去的几年里
最近
之前
辨析 in the past 和 in the past few years
in the past ----
in the past 3 years ---
一过
现完
eg.Tianjin ________ (be) an old city in the past.
eg. In the past few years, Tianjin ___________ (change)
a lot.
was
has changed
改错
1. He has yet left his office.
2. Mary hasn't got home already.
3. Have you ever go abroad by yourself
4. He has taken part in a party yesterday.
5. I already mended my watch.
already
yet
gone
took
have
现完 vs 一现
现完：动作发生在过去，强调对现在产生的影响和结果
一过：只表示过去的动作和状态，和现在没有关系
already, yet, just, so far, before, etc.
yesterday, last night, just now, ... ago,
in+过去年份
标志词：
标志词：
区别：have been to/ have gone to/have been in
have been to 去过某地（已回） 【后可加次数】
have gone to 去了某地（未回）
have been in 呆在某地多久 + 一段时间
-Where is Jim
-He _____________ the library.
I _______________ Beijing twice.
My parents ____________ Shanghai for two years.
has gone to
have been to
have been in
区别：for，since
eg: I have learned English for seven years.
eg: We have found the secrety for many years.
eg: I haven't seen you for a long time!
eg:She has lived here for three years.
for+一段时间
since 自从
eg: She has lived here since 2007.
eg: He has got the news since last night.
eg: The city has improved a lot since I came here a few years ago.(从句）
since+时间点/时间段 ago/从句
eg:We have known each other since two days ago.
He has died.
He has died for 3 weeks.
He has been dead for 3 weeks.
√
×
√
瞬间动词不可与时间段连用，需改为
延续性动词
用_____________进行提问
how long
判断正误
瞬间动词 vs 延续性动词
瞬间动词 延续性动词
arrive/reach
leave
die
begin/start
borrow
buy
finish/end
be (in/on/at sp.)
be away
be dead
be on
keep
have
be over
瞬间动词 延续性动词
get into trouble
open
close
join
fall asleep
catch a cold
fall ill
wake up
be in trouble
be open
be closed
be in/ be a member of
be asleep
have a cold
be ill
be awake
––Hi, Kate, where have you ________
––The bank.
A.gone B.been to C.been D.gone to
Great changes ________ in my hometown.
A.have taken place B.take place
C.have happened D.happened
—Have you ________ been to Qingdao
—Yes, I have. And I hope I can go there again.
A.always
B.ever
C.never
D.sometimes
1.We _____ ______(know)each other for many years.
have known
2.His story ____ ______ (encourage)many people since 2022.
has encouraged
总结:
1.现在完成时结构
肯定：主语+ have/has +done
否定：主语+ have/has not+done
一般疑问：Have/Has+主语+done+时间状语？
特殊疑问句：特殊疑问词+have/has+主语+done？
2.区别：have/has been to 和have/has gone to
区别：for和since
3.连用副词：just,already,ever,never,yet,before