'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 现在进行时的三种句式结构 现在进行时在句式的变化上,都应在助动词be上做文章。...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 缩写补充:I have=Is (同学们注意和He is=Hes区分开了,记忆技巧看句子的成分和意思,巧妙...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 一些短暂性动词及相应的延续性动词: 一定要准确背诵! arrive(get to /reach) be here (in) be...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 现在完成时基本结构 ①肯定句:主语+have/has+动词的过去分词 ②否定句:主语+have/has+...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 表示过去发生的动作持续到现在,并可能还要延续 It has been five years since he joined the ar...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 例:我去过北京。 I have gone to Beijing. 答案:I have been to Beijing. 解析:have been to+地点 是...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 现在完成时是一个与过去和现在都有关系的时态,因此,具有这样时间特点的状语都可...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 一般过去时只单纯表示过去的动作或状态,和现在不发生联系,它可以和确定的表示过...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 现在完成时的时间状语 (1)现在完成时属于现在时范围,故不能和过去的时间状语连用。...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 现在完成时常见考法 现在完成时往往同表示不确定的过去时间状语连用,如already(肯定...