Unit 9 Have you ever been to a museum? 现在完成时与一般过去时的区别 课件(共12张PPT)

(共12张PPT)
The Present Perfect Tense
现在完成时
与
The simple past tense
一般过去时
the Pirates of the Caribbean 5
A:Have you ever _____ (see)the Pirates of the Caribbean 5 yet
B:Yes, I _______(have), I ____ (see) it last month.
A:When _____ (do) you see it
B:I _____（see）it five days ago.
seen
have
saw
did
saw
一般过去时与现在完成时之比较
1.基本结构不一样
一般过去时：主语+动词过去式+其他
主语+ have / has + 动词过去分词
现在完成时：
present(now)
future
past
现在完成时
( present perfect tense)
一般过去式
I came in Urumqi 14 years ago.
I have lived in Urumqi for over 14 years.
一般过去时
现在完成时
2、搭配的时间状语不一样
一般过去时常与yesterday, last week，…ago, in1980, just now. 等具体的时间状语连用。
现在完成时通常与模糊的时间状语连用，或无时间状语。有：for, since, already, yet, in past few years, ever, never, just. 等不确定的时间状语连用。
一般过去时与现在完成时之比较
一般过去时:
Tom wrote a letter to his parents last night.
I had a breakfast just now.
现在完成时:
I have already seen the film.
He has learned English for three years(since three years ago).
Exercise:The past tense or the present perfect tense
A: When______ you ______ the film
B: I ____ it two days ago. (see)
DiLireba _____________ in
Urumqi for several years . (live)
did
has lived
see
saw
3、强调的内容不一样
一般过去时表示过去某时发生的动作或单纯
叙述过去 的事情,强调动作, 和现在不发生关系。
现在完成时表示过去发生的某一动作对现在
造成的影响或结果，强调的是现在的情况。
一般过去时与现在完成时之比较
I saw the Pirates of the Caribbean 5 yesterday.
（强调看的动作发生过了）
I have seen the Pirates of the Caribbean 5 in the past five days.
（强调对现在的影响，电影的内容已经知道了）
1.President Xi______ to (Visit) the UK in 2015.
2.The visit ___________(open) a new chapter (新篇章)for Chinese and the UK in the past years.
3. PengLiyuan ___________( become) a fashion icon (时尚偶像) in the world.
4.They ______(have) a dinner at Buckingham Palace two years ago.
visited
has opened
has become
had
牛刀小试
Thank you for listening!