高中英语语法详解：过去进行时的基本概念详解
<p>过去进行时(<span word="Past">Past</span> <span word="continuous">continuous</span> <span word="tense">tense</span>或<span word="Past">Past</span> <span word="Progressive">Progressive</span> <span word="tense">tense</span>)表示在过去某一时刻或某一段时间内发生或进行的动作或状态.</p><p>过去进行时(<span word="Past">Past</span> <span word="continuous">continuous</span> <span word="tense">tense</span>或<span word="Past">Past</span> <span word="Progressive">Progressive</span> <span word="tense">tense</span>)表示过去某时某刻正在进行的动作(不强调是否完成).(过去进行时具体用在什么地方,看下面的内容)</p><p>具体概念</p><p>一、 概念和用法：过去进行时</p><p>表示在过去某一时刻或某一段时间内进行或发生的动作.其形式为<span word="was">was</span> /<span word="were">were</span> + <span word="V">V</span>-<span word="ing">ing</span>.常与表示过去的时间状语连用,如：<span word="last">last</span> <span word="night">night</span>,<span word="last">last</span> <span word="Saturday">Saturday</span>等;或者与<span word="when">when</span>,<span word="while">while</span>,<span word="as">as</span>引导的过去时间状语连用.</p><p>如：<span word="We">We</span> <span word="were">were</span> <span word="watching">watching</span> <span word="TV">TV</span> <span word="from">from</span> <span word="seven">seven</span> <span word="to">to</span> <span word="nine">nine</span> <span word="last">last</span> <span word="night">night</span>. 昨天晚上七点到九点的时候我们在看电视.</p><p><span word="What">What</span> <span word="was">was</span> <span word="he">he</span> <span word="researching">researching</span> <span word="all">all</span> <span word="day">day</span> <span word="last">last</span> <span word="Sunday">Sunday</span>? 上周日他一整天都在研究什么?</p><p>二、 过去进行时可以表示在过去某个时间点发生的事情.时间点可以用介词短语、副词或从句来表示.</p><p>如：<span word="What">What</span> <span word="was">was</span> <span word="she">she</span> <span word="doing">doing</span> <span word="at">at</span> <span word="nine">nine</span> <span word="o">o</span>‘<span word="clock">clock</span> <span word="yesterday">yesterday</span>? 昨天晚上九点她在做什么? (介词短语表示时间点)</p><p><span word="When">When</span> <span word="I">I</span> <span word="saw">saw</span> <span word="him">him</span> <span word="he">he</span> <span word="was">was</span> <span word="decorating">decorating</span> <span word="his">his</span> <span word="room">room</span>. 当我看见他的时候他正在装饰房间.(<span word="when">when</span>从句表示时间点)</p><p>三、 在复合句中,如果主要动作和背景动作都是延续的或同时发生的,那么主从句的动词都可用过去进行时.</p>
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