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求分析句型:Thetheoryheadvancedhasprovedachallengetomanytraditionalconcepts.我觉得这句话中应该省略了几个从句的连接词,想还原这个句子中省略的连接词?分析一下句型.Thetheoryhe(advanceds是动

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求分析句型:The theory he advanced has proved a challenge to many traditional concepts.
我觉得这句话中应该省略了几个从句的连接词,想还原这个句子中省略的连接词?分析一下句型.
The theory he (advanceds是动词?) has (proved又是动词)(直接接 a challenge to many traditional concepts?我怎么总想在proved后面放一个BE动词才觉得顺口呢).  不是一句句子里只有1个动词吗?除非有从句?
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答案和解析
The theory 主语
(that/whic) he advanced定语从句修饰先行词the theory
has proved a challenge系表结构用作谓语.
to many traditional concepts介词短语用作状语
.