'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); ⒈表示在过去某一时刻或动作以前完成了的动作，可以用by，before等介词短语或一个时间...

'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 2022年初中英语语法复习过去完成时讲解 分页标题 '); (window.slotbydup=window.slotbydup |...

'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 由时间状语来判定 一般说来，各种时态都有特定的时间状语。与过去完成时连用的时间...

'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 1. 由时间状语来判定：一般说来，各种时态都有特定的时间状语。与过去完成时连用的...

'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 过去时： 1)过去时表示过去某时发生的动作或单纯叙述过去的事情，强调动作;现在完成...

'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 基本用法 1)表示在过去某一时刻或动作以前完成了的动作，也可以说过去的时间关于过...

'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 过去完成时的判定 由过去的过去来判定。 过去完成时表示过去的过去，是指过去某一动...

'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 标志性词语 过去进行时常见的标志性时间状语主要有：this morning、the whole morning、all...

'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 过去进行时四大句型 肯定句： 主语+was/were+doing+其他 We were having class at this time yesterda...

'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 区分when 与while的用法。 when后即可以加时间点，又可以加时间段，while 只能加时间段。...