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表语是用来说明主语的身份、性质、品性、特征和状态的，表语常由名词、形容词、副词、介词短语、不定式、动词的-ing、从句来充当，它常位于系动词(be, become, appear, seem,look,sound,feel,get,smell等词)之后。表语多由形容词、名词担当，也可是介宾短语、不定式、分词或动名词等 如： She was in hospital. He is a doctor. It's fantastic. 以上句子中a doctor, fantastic, in hospital就是表语 例题： (1) Quasars----emitting extremely intense radio waves and visible radiation. (A) starlike objects are (B) starlike, they are objects (C) are starlike objects (D) are they starlike objects 答案：C 解释：此句缺少谓语，C由系表结构组成，原句中的分词短语恰好作表语的定语。A B 与原句主语冲突，也不符合同位语的要求;D中they和starlike objects重复 (2) Wherever there is plenty of rain during the growing season, life is ----in various forms. (A) abundant (B) the abundance (C) an abundant (D) it abundant | 
