初中Section A课堂教学课件ppt

这是一份初中Section A课堂教学课件ppt，共33页。PPT课件主要包含了Lead-in，Practice，Production，Exercises，Homework等内容，欢迎下载使用。
行业PPT模板http/hangye/
Let’s listen and think!
Presentatin
Read the sentences. Hw are fr and since used differently?
Let’s learn.
We have been here fr fifty years.
We have been here since 1970.
since + 过去时间
Since he left schl, he has wrked as an English teacher.
since + 从句（一般过去时）
现在完成时时间状语总结：
fr + 一段时间 since + 过去时间点 / 时间段 + ag / 从句 already / just / never / yet / ever最近：recently / in recent …迄今为止：s far / up t nwver / in the past / last + 一段时间
你知道这些结构有什么区别吗？
1. I have been t the beautiful city twice.2. He has gne t his hmetwn alne nw.3. She has been in China fr five years.
have been t
已经去了某地，还没回来
曾经到过某地，已经回来
have been in
Have yu seen the mvie yet?
Yes, I have.
When did yu watch it?
I watched it yesterday.
Srry, Jenny. I’m late.
When did the film begin?
The film has been n fr 30 minutes.
OK, where’s Bb?
He has been away fr 20 minutes.
He left 20 minutes ag. Why?
He gt a call frm his mm.
What a pity! It’s a great film.
-Srry, Jenny. I’m late. When did the film begin?-The film has been n fr 30 minutes.-OK, where’s Bb?-He has been away fr 20 minutes.-He left 20 minutes ag. Why?-He gt a call frm his mm.-What a pity! It’s a great film.
❎The film has begun fr 30 minutes.☑ The film has been n fr 30 minutes.
❎ He has left fr 20 minutes.☑ He has been away fr 20 minutes.
动作不能延续，动作一旦发生就立即结束，并产生某种结果。这类动词可以用于现在完成时，不能和fr和since表示一段时间的状语连用。常见的有： buy, jin, becme, begin, cme, g, die, leave, brrw
动作不但可以延续，而且可以产生持久的影响。这类动词常用于表示一段时间的状语连用。常见的有： live, wrk, teach, study, stay, wait, sleep
leave→be awaybrrw→keepbuy→havebegin→be ndie → be deadfinish →be verjin→ be inbecme → beget t →be inleave →be awayfall asleep→be asleepget married→be married
B. have; had
A. will; buy
C. were; having
D. did; buy
1. —What a nice watch! Hw lng ____ yu ____it?—Fr tw weeks.
2. -Did yu brrw the cmic bk frm the library？-Yes, I ____ it fr three days. I’ll return it this afternn.
C. have kept
D. have brrwed
Cmplete the sentences with the crrect frms f the verbs in brackets and fr r since.
This cllege student enjys vlunteering fr the army. She _________________________ (teach) English t the sldiers ____ three years.I __________ (be) a member f the Red Crss fr six years. I have made a lt f friends ______ I jined the rganizatin.Mr Wu has taught in a primary schl as a vlunteer _____ tw years nw. ______ he started wrking there, he __________ (help) many students.The rganizatin ___________ (train) ver 6,000 vlunteers ______ it began t ffer classes three years ag.
has taught / has been teaching
has trained
Cmplete the passage with the crrect frms f the verbs in brackets.
I lve being a vlunteer! I _____________ (wrk) with a sprts rganizatin fr almst three years nw. Since I started, I ____________ (help) ut at ver ten different sprts events. I __________ (make) many new friends and I even _________ (meet) many famus athletes. Fr example, I ______ (meet) tw natinal ftball players frm Argentina last mnth. They were at a stadium fr a charity match. The stadium ______ (be) s big that they _____ (get) lst. I gave them directins and they _______ (smile) and ________ (thank) me warmly. I am prud t be a vlunteer.
have helped
Let’s watch and learn!
Wrk in grups. Interview yur grupmates using the questins belw. Share the answers with the class.
1. My little brther __________ (fall) ver many times since he started learning t ride a bike.2. We have nt ______ (see) each ther fr a lng time.3. She spends her free time _____________ (vlunteer) fr public activities.4. When yu are kind t thers, they will als treat yu ________ (warm) in return.5. The rganizatin ___________ (train) ver 6,000 vlunteers since it began t ffer classes three years ag.6. The wind __________ (blw) fr three hurs, and it is still strng.
vlunteering
1. Memrize the new wrds and phrases.2. Practice the cnversatins with yur partner using the grammar we have learned .3. Finish the exercises.