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英语从句问题 请指教We felt it a pity that the research team failed to

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英语从句问题 请指教
We felt it a pity that the research team failed to such a plant as had been
described in the botanist's diary.
谁能分析一下句子结构?
英语从句问题 请指教We felt it a pity that the research team failed to
这句话包含了一个that引导的宾语从句和一个as引导的定语从句.
主句主语为we,谓语是felt,it是做felt的宾语,是形式宾语,a pity是宾语补足语.
既然it是形式宾语,那么真正的宾语就是that引导的从句,that引导名词性从句无成分无意义,从句中the research tearm做主语,failed谓语动词,后跟to find...不定式(你少打了find),find是及物动词,它的宾语为such a plant (as had been described in the botanist's diary).
as 引导定语从句修饰先行词a plant,在从句中as充当主语,谓语动词为had been destribed,这是被动结构,in the botanist's diary是地点状语.