精品公开课优质课课件Unit 10Ive had this bike for three years.SectionA(1a-2d)boughtthebikenow_|_|_20133years2015 HowlonghasJeffhadthisbike? Hehashadthisbikefor3years.Hehashadthisbikesince3yearsago.Hehashadthisbikesince2013. Heboughtthisbike3 years ago.Itis3yearssinceheboughtthisbike.时间状语:1.for+一段时间e.g:for8years2.since+过去的时间点e.g:since1999lastspring3.since+一段时间+agoe.g:since23yearsago4.since+从句（一般过去时态）SinceIcameherefourweeksago.用since或for填空。 1. Amy has had her favorite bike _ three years. 2. Tony has had the
