Question

4．從上個月起，那個新博物館已經投入使用．The new museum has been in use since last month．．

Answer 1

分析 The new museum has been in use since last month．

解答 答案：The new museum has been in use since last month．
句中的投入使用come into use發生在過去，已經持續了一段時間，用現在完成時have/has+過去分詞，主語是the new museum三單，故用has，come into use是短暫性動詞短語，需換成狀態be in use，be的過去分詞been，故The new museum has been in use，時間狀語since last week從上月起，故答案是The new museum has been in use since last month．

點評 現在完成時表示過去發生或已經完成的動作對現在造成的影響或結果，或從過去已經開始，持續到現在的動作或狀態． 時間狀語：recently，lately，since…for…，in the past few years，etc．基本結構：have/has+done  否定形式：have/has+not+done．