初中英语语法动词八种时态详解：过去进行时
<p> 初中英语语法动词八种时态详解：过去进行时</p><p> 主要表示在过去的某个时间点上正在发生、进行的动作。由于它的定义是表示在过去的某个时间点上正在发生、进行的动作，所以，句子常带有一个表示过去某个时间点的状语。这个状语可能是短语，词组，或是一个从句。也可能是通过上下文来表达这层意思。过去进行时主要用于下面的情景中：</p><p> 1)表示在过去某时刻正在进行的动作，例如：</p><p> <span word="At">At</span> <span word="this">this</span> <span word="moment">moment</span> <span word="yesterday">yesterday</span>, <span word="I">I</span> <span word="was">was</span> <span word="packing">packing</span> <span word="for">for</span> <span word="camp">camp</span>.昨天这个时候，我正在收拾东西去露营。</p><p> <span word="When">When</span> <span word="I">I</span> <span word="came">came</span> <span word="to">to</span> <span word="see">see</span> <span word="her">her</span> <span word="last">last</span> <span word="time">time</span>, <span word="she">she</span> <span word="was">was</span> <span word="writing">writing</span> <span word="an">an</span> <span word="article">article</span>.上次我来看她的时候，她正在写一篇文章。</p><p> <span word="What">What</span> <span word="were">were</span> <span word="you">you</span> <span word="doing">doing</span> <span word="at">at</span> <span word="eight">eight</span> <span word="last">last</span> <span word="night">night</span> ? 昨晚八点钟你在做什么?</p><p> 2)用于故事的开头，交代故事发生的背景情况。</p><p> 过去进行时所描述的动作是正在进行，所以，在这种情景中用过去进行时可以给读者一种动感，从而能使文章更加生动活泼。例如：</p><p> <span word="One">One</span> <span word="night">night</span>, <span word="he">he</span> <span word="was">was</span> <span word="typing">typing</span> <span word="in">in</span> <span word="his">his</span> <span word="study">study</span> . <span word="Suddenly">Suddenly</span> , <span word="a">a</span> <span word="man">man</span> <span word="broke">broke</span> <span word="into">into</span> <span word="his">his</span> <span word="house">house</span> <span word="and">and</span> <span word="cut">cut</span> <span word="off">off</span> <span word="the">the</span> <span word="electricity">electricity</span> .一天晚上，他正在书房里打字。突然，一个人闯进屋来，切断了电源</p><p> 3)(仅限少数动词)表示在过去的未来时间要发生的动作。例如：</p>
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