2 Complete the pairs of sentences. Use the past simple and the present perfect of the verbs.● visita I have visited Greece more than 20 times.b I first___ Greece in 1998.1 wina He already___ three gold medals, and he hopes to win more.b He___ a gold medal in the 2012 Olymp...
现在完成时(The present perfect tense)的用法小结 一、构成:助动词have / has+p.p(动词的过去分词) 二、用法:现在完成时既涉及过去,又联系现在。用法一:表示过去发生或已经完成的某一动作对现在造成的影响或结果。常与just(刚刚),already(已经),never(从来没有),ever(曾经),before(以前),yet(仍然),once(一...
教材原文中文对译Present perfect tenseWe use the present perfect tense to talk about an我们用现在完成时谈论发生在过去并持续到action that started in the past and continues to the现在的一个动作。present.I have lived here since I was born.我自从出生就住在这儿。We use the present perfect tense ...
当你想说一件在过去发生但持续至现在的事情时，或刚刚完成的事情，你就用present perfect tense；但若你想说那是完仕过去的事情，你就会用past tense。 例如：（第十条） I have been at school since nine. To be 是一个可以持久的动作，当你用present perfect tense写这句时，你是说从九时开...
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现在完成时(The present perfect tense)的用法小结 一、构成:助动词have / has+p.p(动词的过去分词) 二、用法:现在完成时既涉及过去,又联系现在。用法一:表示过去发生或已经完成的某一动作对现在造成的影响或结果。常与just(刚刚),already(已经),never(从来没有),ever(曾经),before(以前),yet(仍然),once(...
现在完成时态(二)presentperfect解析 现在完成时 movedherehavienb2r0e0a4kfast I’mIsntoiltlhliuvenghreyrenow past now 1.过去发生的动作对现在造成的影响或结果。和already，never,ever,just,before,yet等状语 连用。Ihavejusthadmybreakfast.(现在我不饿)2.过去已经开始，持续到现在的动作或状态，常与for或...
1、1 现在完成时 Present perfect 接触一:肯定句式 现在完成时的肯定句式是“have(has)过去分词”。如: We have just finished our homework She has gone home 注意:1)该句式中的have或has是助动词,has用于第三人称单数,其它人称一律用have。 2)该句式中have(has)和过去分词之间可用just插入。 3)把该句式...
think - thought - thought 想,觉得,认为throw - threw - thrown 投,抛,掷,扔understand - understood - understood 明白,理解,懂得wake - woke - woken 醒来wear - wore - worn 穿(衣服),戴(首饰帽子手套等)win - won - won 赢,赢得,获胜write - wrote - written 写,写字,写信 更多全部...
语法讲解——现在完成时( Present Perfect Tense ).doc,语法讲解——现在完成时( Present Perfect Tense ) 结构 主语+ have/has + done(动词过去分词) 用法 1、表示发生过的动作,并对现在有影响。常与already, just, recently, ever, never, before等表示不确定时间