'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 1.表示到说话人说话时已经完成的动作,却对现在仍有影响或结果。 例如: He has lost...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 一、弄清基本构成方法 现在完成时由have / has+过去分词构成。其中的have / has 为助动词,...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 1. A couple of years _______ since we ______ last time.( ) A. have passed; have met B. have past; have met C. ha...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 一、弄清基本构成方法 现在完成时由have / has+过去分词构成。其中的have / has 为助动词,...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 肯定句: ① 主语 + have / has + done + She has been to Shanghai. 她去过上海. I have finished doing my...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 一:for + 时间段;since + 时间点 They have lived in Beijing for five years. They have lived in Beijing si...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 瞬间动词可变为延续动词: go out----be out finish----be over open----be open die----be dead buy---hav...
'); (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' });})(); 1. The children ________________(watch) TV since noon. Will you stop them? 2. They _________________(build) the...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 过去分词变化规则如下: 1 、规则动词:规则动词的过去分词的构成规则与规则动词的...