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        1. We were sad to know that about 30 kids had been killed in Sandy Hook, Newtown, the USA ____ December 14, 2012.
          A.inB.a(chǎn)tC.onD.by
          C

          試題分析:在表示時(shí)間時(shí),in表示在一個(gè)時(shí)間范圍;at表示在具體時(shí)刻;on表示在具體某一天.by表示到某時(shí)為止。本句中December 14, 2012為具體某一天,故用介詞on,選C.
          點(diǎn)評(píng):英語(yǔ)介詞的一個(gè)特點(diǎn)是一詞多義,并且介詞間語(yǔ)義交叉現(xiàn)象很多,習(xí)慣用法也很多,有時(shí)很難從詞義上區(qū)分開(kāi)來(lái)。故學(xué)習(xí)中要注意不斷總結(jié),熟記一些介詞和動(dòng)詞的固定搭配用法及習(xí)慣用法,是完成此類問(wèn)題的捷徑。
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