初中英语牛津译林版（2024）八年级下册（2024）Grammar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）Grammar教学演示课件ppt，共24页。
1、T understand the differences between the simple past tense and the present perfect tense.2、T grasp the expressins with the present perfect tense.3、T grasp the expressins with the simple past tense.4、T understand different uses f the present perfect tense.
Learning bjectives
Yesterday Once MreWhen I ________yung I'd listen t the radiWaiting fr my favrite sngsWhen they _______ I'd sing alngIt _______ me smile.Thse ______such happy times And nt s lng agHw I _________where they had gneBut they _______back again just like a lng lst friendAll the sngs I lve s wellEvery shalalala every w'w Still shines
Find the Simple past tenseand fill in the blanks
Seasns in the sngGdbye t yu my trusted friend We_________ each ther since we were nine r ten Tgether we ___________hills and trees Learned f lve and abc skinned ur hearts and skinned ur knees
've climbed
Find the Present perfect tense and fill in the blanks
1. 表示过去某个时间发生的动作或存在的状态。2. 表示过去经常或反复发生的动作。
yesterdaylast night / week / 1990tw days ag …just nw
have / has + dne
1. 表示过去发生或已经完成的动作对现在造成的影响或结果。2. 表示从过去某一时间开始一直持续到现在的动作或状态。3.表示某个动作从过去到现在发生的次数。
already, yet, just, recently, never, befre, ver the years,in the past few years, s far,till nw
Presentatin
What are the frms f these verbs? And which tense are they used in?
Simple past tense
Present perfect tense
Wrk ut the rules (1)
Daniel went t Beijing tw years ag.
We use the simple past tense t tell what happened in the past.
We use the present perfect tense t talk abut an actin that started in the past and cntinues t the present.
Daniel has lived in Beijing fr tw years.
我们用一般过去时讲述过去发生的事情。
我们用现在完成时讲述一个动作发生在过去并且持续到现在的动作。
Wrk ut the rules (2)
We use the present perfect tense t talk abut the result f an actin. When the actin happened is nt very imprtant. It may have just happened r happened sme time ag.
Daniel has bught a new cmputer. (He has a cmputer nw.)
Daniel bught a new cmputer last mnth.
我们用现在完成时谈论或强调一个动作的结果，而动作发生的时间可能并不重要。
Wrk ut the rules (3)
He visited Canada in 2010 and 2011.
We use the present perfect tense t tell hw many times an actin has happened till nw.
He has been t Canada twice.
我们用现在完成时讲述一个动作到现在为止已经发生的次数。
simple past
present perfect
时间标志词分类（一般过去时）1.昨日/前日类：yesterday, the day befre yesterday2.上周/上月类：last week/mnth/year/term3.多久前：（tw days ag, five years ag）4.具体过去时间：in 2019, n Mnday mrning（过去的）5.其他：the ther day（前几天）
时间标志词分类（现在完成时）1.不确定时间：ever, never, already, just, yet, befre2.至今类：s far, up t nw, till nw, by nw3.一段时间：fr+时间段（fr three years, fr a mnth）4.自从类：since+时间点/从句（since 2020, since he came）5.次数类：nce, twice, many times
易混标志词——fr & since均为现在完成时专属，表“动作持续多久”fr + 时间段（表时长）：fr tw hurs, fr a weeksince + 时间点/一般过去时从句（表起点）例：since 2021 / since I was ten / since he arrived转换：fr three years = since three years ag
易错点提醒1.现在完成时不能与yesterday/last week等连用2.一般过去时必须有明确的过去时间状语3.看到ever/never/yet/s far，直接用现在完成时4.看到ag/last+时间/in+过去年份，直接用一般过去时5.注意：主语为三单时，现在完成时用has
I ________ (visit) the Palace Museum with my grandparents the ther day.
I ________ (climb) Munt Huang last summer.
I am happy that I ___________ (learn) t swim.
______ yu ever ______ (try) the famus Tianjin Bazi?
Have tried
have learnt
I ________________ (finish/just) my hmewrk.Millie _______ (finish) her hmewrk 20 minutes ag.
2. I ______ (write) an email t my friend yesterday.Daniel __________________ (write/already) tw emails.
have just finished
has already written
用括号中所给词的适当形式填空。
4. I _________ (live) in Sunshine Twn since I was brn.Daniel ____ (live) in Nanjing in 2007.
专项练习——单项选择 1.—__________ yu ever __________ t the nline z?—Yes, I __________ it last mnth.A. Did; g; visited B. Have; been; visited C.Have; gne; visited2.My brther __________ the bike in 2022 and he __________ it fr tw years.A. bught; has had B. has bught; had C.bught; bught3.—Have yu __________ finished yur prject?—Yes, I __________ it an hur ag.A. yet; finish B. already; finished C.already;have finished
专项练习——单项选择 4.He __________ t Nanjing three times s far. He __________ there last year.A. has been; went B. has gne; has been C.went; has gne 5.I __________ the bk yesterday. I __________ it fr ne day.A. read; have had B. have read; read C.read; read6.—__________ did yu g t Shanghai?—Last summer. I __________ there with my family.A. When; went B. Hw; have been C.When;have gne
have played
has visited
have cllected
have visited
has nt visited/hasn’t visited
has bked
定义：一般过去时表示过去某个时间发生的事情或存在的状态，说话的侧重点在陈述过去发生的事情或存在的状态。
标志词：一般过去时通常与表示过去的时间状语连用,yesterday，last week，tw years ag，just nw, in2022等。
定义：现在完成时表示到说话时为止已经发生或完成(不一定结束)的动作或状态,强调造成的结果或对现在产生的影响。
标志词：现在完成时则通常和频度副词或表示一段时间的状语连用,如 many times, never, these days, this week, since ... fr ..., till nw, recently等.