'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 现在进行时 1.概念:表示现阶段或说话时正在进行的动作及行为。 2.时间状语:now,...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 现在进行时用法: 1) 表示现在(指说话人说话时)正在发生的事情。 例如:We are waiting...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); since的三种用法 1) since +过去一个时间点(如具体的年、月、日期、钟点、1980, last mont...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 现在完成时: 1.概念:过去发生或已经完成的动作对现在造成的影响或结果,或从过去...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 现在完成时 1.概念:过去发生或已经完成的动作对现在造成的影响或结果,或从过去已...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 过去完成时与现在完成时的区别 现在完成时表示的动作发生在过去,它侧重的是对现在...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 过去完成时的基本用法 过去完成时的用法,我们可以从以下三个方面来说: 第一个是用...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 过去完成时的构成 肯定句:had+动词的过去分词;否定句:had后面加上not;一般疑问句:把...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 过去完成时: 1.概念:以过去某个时间为标准,在此以前发生的动作或行为,或在过去...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 练习及答案 【典型考例】John and I____ friends for eight years. We first got to know each other at a C...