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homework ? 誰完成了作業(yè)? 4. 時間狀語:典型的表時間的詞與現(xiàn)在完成時連用,這些詞有:for 、since、 already、 yet、 ever、 never、 recently、just、before、 so far、 by now、 …等連用. 注意: for+一段時間 since+過去的某一個時間點 I have lived in Nanning for ten years. I have lived in Nanning since ten years ago/ 2002. I haven’t eaten anything for ten hours. I ha haven’t eaten anything since 6am. already :用于肯定句, 可放在助動詞之后、過去分詞之前,也可放在句末. I have already finished my homework. yet: 用在疑問句中意為”已經(jīng)”, 用在否定句中表示”還”, 常放在句末. Have you finished your homework yet? I haven’t finished my homework yet. ever: 曾經(jīng) 用于疑問句中: Have you ever been to Beijing? Have you ever been to Shanghai ? 你去過上海嗎? never: 未曾 從未 I have never traveled by plane before. 我以前從來沒有乘飛機旅行過.recently:最