作业帮At the age of fifteen,he became a famous pianist里找出那个单词是主语,连系动词,表语
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At the age of fifteen,he became a famous pianist里找出那个单词是主语,连系动词,表语
At the age of fifteen,he became a famous pianist里找出那个单词是主语,连系动词,表语
At the age of fifteen,he became a famous pianist里找出那个单词是主语,连系动词,表语
主语是he
系动词是became
表语是a famous pianist
作为系动词,它本身有词义,但不能单独用作谓语,后边必须跟表语,构成系表结构说明主语的状况、性质、特征等情况.
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.
这个句子中,表示主语he的性质的就是a famous pianist（一个著名的钢琴家）.
额，我发现我刚才错了~~
这句话是主+系+表结构的
At the age of fifteen, he became a famous pianist
时间状语 主 系动词 表语
he 主语
became 连系动词
pianist 是表语 （famous 是表语的定语）
希望我的回答能帮到你，望采纳。如有疑问，欢迎追问。
祝你快乐！
是主系表结构。http://baike.baidu.com/view/200953.htm 是系动词的介绍。
At the age of fifteen, he became a famous pianist。
时间状语 主语 系动词 表语。