一般过去时和现在时区别辨析PPT讲座

致的含义上的差别延续性动词和瞬间性动词之间的转化(重难点)1.Hediedtenyearsago.---He_______________fortenyears/sincetenyearsago.2.Heborrowedthebook2weeksago.---He__________thebookfor2weeks.3.Heboughtthebikeamonthago.---He__________thebikeforamonth.4.Hearrivedherethreedaysago.---He__________heresincethreedaysago.5.Theyturnedoffthelight2hoursago.---Thelight________________for2hours.hasbeendeadhaskepthashadhasbeenhasbeenon6.Helefthere2yearsago.---He_______________fromherefor2years.7.Thefilmbegan30minutesago.---Thefilm_______________for30minutes.8.Theyopenedthedooranhourago.---Thedoor_______________foranhour.9.Theyclosethedooranhourago.---Thedoor_______________foranhour.10.Hejoinedthearmylastyear.---He__________asoldierforayear.---He_______________thearmyforayear.hasbeenawayhasbeenonhasbeenopenhasbeenclosedhasbeenhasbeenin