初中英语牛津译林版（2024）八年级下册（2024）Unit 1 Past and presentGrammar教学演示课件ppt

这是一份初中英语牛津译林版（2024）八年级下册（2024）Unit 1 Past and presentGrammar教学演示课件ppt，共20页。PPT课件主要包含了havehas，done，present，past，present ，Practice， has， turned， have， moved等内容，欢迎下载使用。
Read and find ut mre abut Shenzhen’s changes.
Presentatin
What tense is used in these sentences?
Present perfect tense 现在完成时
1. He’s lived there since he finished cllege.2. Transprt has als imprved a lt. Peple can get arund the city easily.3. I’ve nly been there nce.
_________+_________
the past participles f verbs
He’s lived there since he finished cllege.自大学毕业以来，他就一直住在那里。
We use the present perfect tense t talk abut: ① an actin that started in the past and cntinues t the present;（从过去持续到现在的动作或状态）;
has lived there
finished cllege
Transprt has als imprved a lt. 交通也有了很大的改善。
② an actin that happened in the past and has a cnnectin with the ______________ (past, present);（动作发生在过去但对现在有一定的影响）;
peple can get arund the city easily
Transprt imprved
I have been t Beijing many times. 我去过北京好多次了。
③ hw many times an actin has happened up t ______________(the present, sme pint in the future).（表示某个动作从过去到现在发生的次数）
the present
1. fr +一段时间
2.since+过去的时间点或一般过去时从句
4.ever, never, befre
5.time adverbials indicating the number f times
What time adverbials usually appear in sentences with the present perfect tense?
3.just, already, yet, recently, ver(the past/last...) years, s far, till nw, up t nw, by nw
fr five days
since last Mnday, since he arrived
three times
Frm the past participles f verbs
Rules f frming the past participles f regular verbs
Rules f frming the past participles f irregular verbs
Frm the sentence structures
have/has + dne
have/has+ nt + dne
Have/Has + subject+
Yes, subject + have/has.
N, subject + haven’t/hasn’t.
Finish Part A n page 13
has changed
has imprved
haven’t visited
Q: Why shuld we use the present perfect tense?
Finish Part B n page 14
has wrked
have visited
指代前文提到的某个过去时间点之后，动作从该时间点开始持续或重复到现在。
Finish Part C n page 14
have fallen
单数形式：there has been + 单数名词复数形式：there have been + 复数名词
We used t live in small huses, but mst families have mved int new buildings.
Have there been great changes in yur hmetwn?
The quality f life
A: Hi! Lng time n see. I heard yu went back t yur hmetwn last mnth. Hw was the visit?B: Oh, it’s amazing!_____________________________________________.A: Ww, that’s great. My hmetwn has changed a lt t.___________________________________________________________________________.B: Really? ____________________________________________________.A: That’s cl. In my hmetwn, __________________________________.B: Times really have changed. I think ur hmetwns will becme even better in the future.A: I agree. I can’t wait t g back during the hliday t see mre changes!
Cmpulsry hmewrk:1. Review the grammar rules f the present perfect tense.2. Write an article abut the changes in yur hmetwn, using the present perfect tense.Optinal hmewrk:Interview yur classmates and knw mre abut the changes in their hmetwn.