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现在完成时标志词口诀

1.一般现在时:sometimes,often,usually,always,regularly,generally,every day,once aweek,at present,nowadays, at the moment. 2.一般过去时: yesterday,last week,three days ago,in 1980 3.一般将来时: be going to, be to, be about to 4.过去将来时

现在完成时的标志词有以下这些:1、Already:用在肯定句中(be动词、助动词、情态动词之后,实意动词之前)常与yet进行转换.例如:I have already finished the work.我已经完成这项工作了. 改为否定句:I haven't finished the work yet.我还

一般过去时动词都是过去式,时间状语也都是表示过去的,标志词有:yesterday,last week ,last month,last year,two years ago,in the past等.现在完成时中 have/has+动词的过去分词 是核心.时间标志词是for sometime,ever,never,since,already,yet,before,twice,once,three times等.过去完成时中 had+动词的过去分词 是核心.此时态是发生在过去的过去,就是在过去之前发生的事,常用在从句里,而此时从句中一般有过去时.有时有标志词:by the year xxxx(2008、2007)等.

already:用在肯定句中(be动词、助动词、情态动词之后,实意动词之前)常与yet进行转换.例如:I havealreadyfinished the work.我已经完成这项工作了. 改为否定句:I haven't finished the work yet.我还没有完成这项工作.改为一般疑问句:

for,since,ever,never,just,yet,up to now,in the past/last few years,recently,so far、、、好像是吧,时间状语应该……

第一部分:现在完成时表示过去发生或已经完成的动作对现在造成的影响或结果,也可表示过去已经开始,一直延续到现在的动作或状态.学习现在完成时,先从结构和句式开始: 构成:主语 + have / has + 过去分词 + 其他(当主语是第三人称

现在完成时 have/has + done 现在完成时的被动语态 have/has+been done现在完成时的标志性时间状语already , ever , never , yet , just , before, still , lately ,since , for a long time ,up to now, until,so far,in the last few years/weeks/mouths , till now,recently

yet,since,ever since,already,by now,in the last few years,

现在完成时的构成是have 和has + v现在分词构成.标志词一般有 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,always, in the last/past( few years)

1.for + 一段时间2.in/during/ever+ the+ 一段时间3.since当 自从 来讲时4. 次数 once/twice/three timesmany times5.already before yet recently ever by

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