初中英语牛津译林版（2024）八年级下册（2024）Grammar课前预习ppt课件

这是一份初中英语牛津译林版（2024）八年级下册（2024）Grammar课前预习ppt课件，共21页。PPT课件主要包含了Lead-in，现在完成时，Sentences等内容，欢迎下载使用。
Present perfect tense
The rise f Shenzhen
Learning Aims
What tense des the writer use?Hw d yu knw that?
Wrk ut rules
主语+have/has助动词 + dne(过去分词)+其他
Present perfect tense
现在完成时的基本构成 ：
I/We/Yu/They + have + dne(过去分词）+其它。He/She/It + has + dne(过去分词）+其它。
______________ their hmewrk. (finish）He ______________his hmewrk. （finish)
have finishedhas finished
现在完成时的一般疑问句
Have yu arrived？
Has she arrived？
Have Tm and Jane arrived？
肯定句的主语和have/has调换位置变一般疑问句
Yes, I have. / N, I haven’t.
Yes, she has. / N, she hasn’t.
Yes, they have. / N, they have’t.
过去持续到现在的动作或状态过去的行为对现在产生影响动作已经发生0-多次
主语+have/has dne+其它
already,ever,just,never,recently,yet,befre
since,fr,in the past years,ver/during the years,in recent years, s far
When t use?
现在完成时与fr和since的用法
I have been here fr 10 days.
I have been here since 10 days ag.
I have been here since I was brn.
since+时间点（年月周日时）
I have been here since January 10th.
since+时间段+ag
since+一般过去时从句
现在完成时的肯定句、否定句与一般疑问句
肯定句否定句一般疑问句肯定回答否定回答
sb have/has dne (sth).
sb have/has nt dne (sth).
Have/Has sb arrived?
Yes, sb have/has.
N, sb haven’t/hasn’t .
I haveWe haveYu haveThey haveHe/She/It has
have nthas nt
=I’ve =We’ve=Yu’ve =They’ve =He’s/She’s/It’s
=haven’t =hasn’t
finish / repairchange / livetry / studystp / plan
以辅音字母y结尾的-y+ied
以元音+辅音结尾的短动词，双写尾字母+ed
A-A-A A-B-AA-B-BA-B-C
hit,put,cut,cst,spread,hurt,set,let
cme,becme,run
meet,make,catch,keep,win,hld,tell,spend,have,lead,fight,think,
fall,take,drive,knw,see,write,chsefrget,lie,hide,wake,eat,steal,begin
has changed
has imprved
haven’t visited
have visited
have lived
have fallen
Talk with yur partner abut the changes in yur hmetwn, using the present perfect tense
rads:transprt:buildings:envirnment:city:
A: Hi! Lng time n see.I heard yu went back t yur hmetwn in Guizhu last mnth. Hw was the visit?B: Oh, it's amazing! S many changes have taken place since I left ur twn five years ag. The ld dirt rads have turned int wide streets, and there are even new bus statins. Have yu ever seen a village with its wn library?Ours has ne nw-we never had that befre!
A: Ww, that's great. My hmetwn in Sichuan has changed a lt t. We used t live in small wden huses, but mst families have mved int new buildings.B: Really? My grandma says the gvernment has built a new bridge thrugh the muntain. It used t take tw hurs t g t the twn centre, but nw it nly takes 20 minutes. Many yung peple have cme back t start businesses-like my cusin, wh has pened an nline fruit shp.
1. I can’t find my key. I’m afraid I ________ it.2. I wn’t g t the cinema with my friends tmrrw. I ____________ the film many times.3. Can I brrw yur dictinary? Srry, I ____________ it t Sandy.4. Let’s g hme nw. The rain ___________.5. The bus _________. Yu’d better wait fr anther 10 minutes.
have watched