英语人教版八年级下册Unit 10 Section A 1a-2d 课件.pptx

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1、Unit10I‘vehadthisbikeforthreeyears.PeriodOne（1a-2d）Unit10LanguageGoal:Talkaboutpossessionsandthingsaroundyou.(学会谈论自己拥有的物品和周围的事物。)GrammarFocus:Use“have/hasdone”totalkaboutpossessions.学会“since”和“for”的用法.Emotionalgoal:Developthelovetohometown.SectionA11a-2dIstartedteachingEnglishin1997.Iamstillteaching

2、Englishnow.Howlonghave…taughtEnglish?IhavetaughtEnglishforabout10years.since1997.Howlonghaveyou…?I’ve…for…since…现在完成时表示动作从过去某一时刻开始,一直延续到现在(动作可能刚开始，也有可能持续下去),常和ever,never,just,already,before,yet等词以及since和for引导的时间状语连用。(多用于延续性动词).构成：have/has+动词的过去分词nowIamteachingEnglishnowTimeline1997IstartedtoteachEng

3、lishin199720years1997nowItaughtEnglishfor20years.HowlongdidIteachEnglish?20years1997nowtomorrowHowlonghaveyoutaughtEnglish?IhavetaughtEnglishforabout20yearsnownowIamstudyingEnglishnow…IstartedtostudyEnglishin……yearsnowIstudiedEnglishfor…years.HowlongdidyoustudyEnglish?…years…nowtomorrowHowlonghaveyo

4、utaughtEnglish?IhavetaughtEnglishfor…yearsWhatareyoudoingnow?WhendidyoustarttostudyEnglish?…2hoursHowlonghassheread?Shehasreadfor2hours.ShehasreadSince2hoursago.halfanhourHowlonghasheplayedcomputergames?Hehasplayedcomputergamesforhalfanhour.sincehalfanhourago45minutesHowlonghavetheyplayedsoccer?They

5、haveplayedfor45minutes.since45minutesago.anhourHowlonghavetheyswum?Theyhaveswumforanhour.sinceanhourago.引导时间的介词for与since的区别(for与since引导的短语用howlong提问)forsince表示时间的持续表示“自从过去某一时间点以来”for+时间段since+过去时间点强调一段时间强调动作或状态一直延续到现在Hehaswrrittensongssince1995.Hehaswrittensongsfor16years.Hehassungsince1997.Hehassun

6、gfor14years.Hehasswumsince1970.Hehasswumfor41years.since+过去的一个时间点(和表示过去某一时刻的词或词组连用)since后可跟句子,时态多用一般过去时for+一段时间(和表示一段时间的词组连用)Fillintheblankwithfororsince1.Ihavebeenstudyinginthisschool____twoyears.2.MissWanghasbeenteachinghere____lastyear..4.ShehasbeenintheU.S.Asixyearsago.5.Ihavebeenpracticingthepi

7、ano____10:30.3.Hehaslivedhere____hewasborn.forsincesincesincesince6.Mariciahasbeenrunning____15minutes.7.Sarahhasbeensleeping_____9:00.8.Dalehasbeentalkingonthephone_____5minutes.9.Louiehasbeenstudyin