人教版八下英语 Unit10 Ive had this bike for three years 第3课时（SectionA Grammar Focus-4c）.pptVIP

SectionAGrammarFocus-4c;1.Newword:hometown

2.Grammar:①Presentperfecttensewithsinceandfor.

②Continuationandnon-continuationverbs;FORVS.SINCE;Usefororsincetoformadverbialsoftime.;Howlonghaveyouhadthatbikeoverthere?;用什么疑问词来询问拥有某物品的时间？;现在完成时的特殊疑问句结构是什么？;现在完成时（3）;Hehaslearnedabout5,000Englishwordssincehe

wenttocollege.

She’sbeenatthisschoolsincefiveyearsago.

【拓展】含for和含since的现在完成时的句子有时可互相转换。

我从13年前开始就住在这里。

I’velivedheresince13yearsago.

=I’velivedherefor13years.

=Ithasbeen13yearssinceIbegantolivehere.;思考:

与howlong,for或者since搭配使用在现在完成时中的动词有什么共同特点？;A.HowlonghasMaryleft?

HowlonghasMarybeenaway?

B.Howlonghasheborrowedthebook?

Howlonghashekeptthebook?

C.MariahascomebacksinceMonday.

MariahasbeenbacksinceMonday.

D.Tonyhasboughtthecomputerfortwoyears.

Tonyhashadthecomputerfortwoyears.;二、现在完成时中的谓语动词

在含有现在完成时的肯定句中，与“for+时间段”

“since+过去的时间点或从句”或“since+时间段+ago”连用的动词必须为延续性动词。常见的延续性动词有have、live、teach、learn、work、study、know等；常见的非延续性动词（词组）有come、go、leave、start、die、finish、become、join、buy、getmarried等。;他加入共青团两年了。

(×)HehasjoinedtheCommunistYouthLeague

fortwoyears.

(√)HehasbeenaCommunistYouthLeaguemember

fortwoyears.

这块手表我买了两年了。

(×)Ihaveboughtthiswatchfortwoyears.

(√)Ihavehadthiswatchfortwoyears.;练一练;【拓展】部分非延续性动词（词组）和与之对应的延续性动词（词组）的表达：;非延续性动词（词组）;思考:

什么情况下非延续性动词（词组）

可以和一段时间连用？;1.JimisinJapan.Hearrivedtherethreedaysago.

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2.Theyareveryhungry.Theirlastmealwastenhoursago.

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3.Ihaveacamera.Iboughtitin2009.

____________________________________________;4.IknowAnna.Ifirstmetherthreeyearsago.

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5.Lindaisill.ShebecameillonMonday.

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