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      2. have是什么時(shí)態(tài)的標(biāo)志

        回答
        瑞文問(wèn)答

        2024-09-20

        現(xiàn)在完成時(shí)是英文時(shí)態(tài)的一種。
        現(xiàn)在完成時(shí)的用法:
        主語(yǔ)+have(has)+過(guò)去分詞(done);
        現(xiàn)在完成時(shí)用來(lái)表示現(xiàn)在之前已發(fā)生過(guò)或完成的動(dòng)作或狀態(tài),但其結(jié)果卻和現(xiàn)在有聯(lián)系,也就是說(shuō),動(dòng)作或狀態(tài)發(fā)生在過(guò)去但它的影響現(xiàn)在還存在。

        擴(kuò)展資料

          現(xiàn)在完成時(shí)可以用來(lái)表示發(fā)生在過(guò)去某一時(shí)刻的,持續(xù)到現(xiàn)在的情況,常與for,since連用.

          Mary has been ill for three days.

          I have lived here since 1998.

          現(xiàn)在完成時(shí)往往同表示不確定的過(guò)去時(shí)間狀語(yǔ)連用,如already, yet, just, before, recently,still, lately等:

          He has already obtained a scholarship.

          I haven't seen much of him recently (lately).

          We have seen that film before.

          Have they found the missing child yet

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