现在完成时态的标志词

★一般现在时: often, usually, always, sometimes, never, seldom, every week/day/year/month..., once a week, on Sundays ★一般过去时： ago, yesterday, the day before yesterday, last week/year/night/month..., in 1989, just now, at the age of five, one day, ago, long ago, once upon a time, then(那时), on that day, ★现在进行时： now, at this time, these days, Listen! Look! at this moment/time ★过去进行时： at this time yesterday，at that time 或"when + 一般过去时从句", at 1:00 last night ★现在完成时： recently, recent years, these days/years, lately, since, for + 时段, in the past few years, ever since, in the last five months, up to now, since then, so far, ever, never, yet, lately, once, twice, three/four times..., already, before, just. ★过去完成时： before, by the end of last year/term/month... ★一般将来时： tomorrow, next day/week/month/year..., soon, in a few minutes, by..., the day after tomorrow, in the future ★过去将来时： the next day/morning/year..., the following month/week... 现在完成时：already, yet, so far, as yet, lately ,recently,these days/weeks/years, until now, up to now, since+ 时间点, for+时间段, in the last/past( few years)等 过去式：以前的某个时间点如 yesterday，one year ago 等， in the past 一般现在时：always, usually, often, sometimes 等 现在完成时英语16 种时态中不易掌握的一种时态，不仅用法法复杂，而且还通常要与某些特定的词语连用。本文对现在完成时通常连用的词语作一归纳，供大家参考。 一、since 不管 since 是用作介词、连词还是副词，它通常都与现在完成时连用。如：Charles has worked hard since leaving school. 自从离开学校以来查尔斯工作一直很努力。(since 为介词) Great changes have taken place here since 1978. 自 1978 年以来这里发生了巨大的变化。(since 为介词)Her reading has improved greatly since she changed schools. 自从她转校以来，...