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1、Revision:北京因长城作为一个旅游城市而著名。Beijing___________________________.2.这条河是个钓鱼和放松你自己的极好地方。Thisriverisa__________________________.3.我三天前听说了这件惊讶的事。I_____________________________________.4.自从上世纪起，他就已经很出名了。He_____________________________________.5.这网站叫做“…”/找一个叫….的
2、网站isfamousfortheGreatWallasatourcityperfectplacetogofishingandrelaxyourself.heardof/abouttheamazingthingthreedaysagohasbeenveryfamoussincethelastcenturyThiswebsiteiscalled.../searchforawebsitecalled…GrammarSimplepasttense&presentperfecttenseDaniel两年前去了
3、北京。DanielwenttoBeijingtwoyearsago.Daniel已经在北京居住两年了。DanielhaslivedinBeijingfortwoyears.Weusesimplepasttensetotellwhathappenedinthepast.Weusethepresentperfecttensetotalkaboutanactionthatstartedinthepastandcontinuestothepresent.PresentationDaniel上个月买了台新电脑
4、。Danielboughtanewcomputerlastmonth.Daniel已经买了台新电脑。Danielhasboughtanewcomputer.(Danielhasanewcomputernow.)Weusethesimplepasttensetotellwhathappenedinthepast.Weusethepresentperfecttensetotalkabouttheresultofanaction.Whentheactionhappenedisnotveryimportan
5、t.Itmayhavejusthappenedorhappenedsometimeago.Presentation吴老师2010年和2011年访问过加拿大。MrWuvisitedCanadain2010and2011.吴老师已经去过加拿大两次。MrWuhasbeentoCanadatwice.Weusethesimplepasttensetotellwhathappenedinthepast.Weusethepresentperfecttensetotellhowmanytimesanactionh
6、ashappenedtillnow.Presentation1)一般过去时表示过去某时发生的动作或单纯叙述过去的事情，强调动作；现在完成时为过去发生的，强调过去的事情对现在的影响，强调的是影响。Summary2)现在完成时可表示持续到现在的动作或状态，与延续性的动词连用，如：live,teach,learn,work,study,know。若遇到短暂性动词如：come,go,leave,start,die,finish,borrow,getmarried等，需要转换成延续性状态或动作。3)一般过去时
7、的时间状语：yesterday,lastweek,…ago,in1980,inOctober,justnow,theotherday等，皆为具体的时间状语。Tips:theotherday相当于afewdaysago,意为“几天前、某天、那天、不久前”，句中用一般过去时。如：Imetherinthestreettheotherday.几天前我在街上碰见过她。Iboughtthewatchtheotherday.这手表我是几天前买的。现在完成时的时间状语：for,since,howlong,ever,
8、never,just,already,yet,sofar,till/untilnow,uptonow,over/inthepastfiveyears,recently,lately等，句子中如有过去时的时间副词（如yesterday,lastweek,in1960）时，不能使用现在完成时，要用过去时。（错）Tomhaswrittenalettertohisparentslastnight.（对）Tomwrotealettertohisparentslastnight.
