基本概念过去进行时表示在过去某一时刻或一段时间内正在进行的动作
过去时间除有上下文暗示以外,一般用时间状语来表示
结构was/were+动词-ingShewasreadingathome
Askandanswerquestionsbyusing“was/were+doing”
Whatwasshedoingatthetimeoftherainstorm
Theywerestudyinginthelibrary
Whatweretheydoingwhentherainstormcame
Shewaswaitingforthebusatthebusstop
Whatwasshedoingwhentherainstormcame
Whatwashedoingatthetimeoftherainstorm
HewasplayingbasketballHewasdoinghishomework
Whatwasyourbrotherdoingatthetimeoftherainstorm
when和while都可表示“当……的时候”,引导时间状语从句
你知道两者在过去进行时中的用法有什么不同吗
WhenI…Hewasdoing…WhenIcalledhimup,hewassleeping
Makesentenceswithwhenandwhile
Icalledhimupwhilehewassleeping
WhenI…Hewasdoing…WhenIwalkedtoschool,hewaseating
IwalkedtoschoolWhilehewaseating
WhenI…Hewasdoing…WhenIreadthenewspaper,hewaswatchingTV
IreadthenewspaperwhilehewaswatchingTV
WhileJohnwas