句子成分分析

attachments-2020-12-azzzMUtN5fdc18acec8ef.png

proved做定语吗?即是否能这么改写:

“the hydrogen itself was proved too expensive.” or

"the hydrogen is too expensive which was proved."

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最佳答案 2020-12-19 17:45

but后是另外一个分句,一个完整的句子,因为but是连接词。所以proved是分句的谓语动词,storing and supplying the hydrogen itself 是此分句的主语,ing形式做主语。

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  • 莱茵 提出于 2020-12-18 10:51