八年级下册unit5课件.ppt

文档介绍：Unit5Whatwereyoudoingwhentherainstormcame?--alarm,begin,heavily,suddenly,strange,gooff,pickup,bebusydoing,lookfor,takeashower,--Whatwereyoudoingatsevenlastnight?-Iwasinthekitchenhelpingmymom.\Whenyoucalled,Iwastakingashower.\Sowhileyouweresleeping,????,然后补全空格中的内容。,,,而从句动作是短暂性的,此时用when引导时间状语从句,主句用过去进行时时态,从句用一般过去时态。,,,从句的动作是持续性的,此时用while引导从句,主句用一般过去时时态,从句用过去进行时态。,当他们正在等公共车时,:00yesterdaymorning,