He newly-discovered star was named _____ a Chinese astronomer ________his contributions to astronomyA.for; in favor ofB.after; in honor ofC.by; in memory ofD.as; in praise of
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B解析考查介词和介词短语,第一空填after,词组:be named after”以…命名，第二空填in honor of“为了对…表示敬意，为了纪念”句意是：新发现的星星是以中国宇航员命名的，为了纪念他对航天事业做出的贡献。选B。