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        1. I ______ Mr. Smith since he moved to Shanghai.
          A.didn’t hear fromB.don’t hear from
          C.haven’t heard from D.won’t hear from
          C

          試題分析:句意:自從史密斯先生搬去了上海,我就再也沒有知道他的消息了。since“自從”,一般與現(xiàn)在完成時(shí)連用,其后用一般過(guò)去時(shí),前面用現(xiàn)在完成時(shí)。故選C.
          點(diǎn)評(píng):現(xiàn)在完成時(shí)表示動(dòng)作已經(jīng)完成,并對(duì)現(xiàn)在造成了影響。初中階段注意兩個(gè)詞所連的時(shí)間狀語(yǔ),即for后面加一段時(shí)間;since后面加點(diǎn)時(shí)間,有這兩個(gè)短語(yǔ)在句子中時(shí),句子都需要用現(xiàn)在完成時(shí)。
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