if needed是否正确,句子结构分析

老师好,这是kindspring 中的一句话,麻烦老师分析一下 told to tread carefully 的句子成分和if needed的合理性

The other shoppers and I were shepherded out the storeroom back door, told to tread carefully and were offered support if needed. 

 told to tread carefully 是状语吗?

if needed省略的support还是it?谢谢老师!

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最佳答案 2020-11-18 21:24

The other shoppers and I were shepherded out the storeroom back door, told to tread carefully and were offered support if needed. 

told to tread carefully 是过去分词短语,作 were shepherded 时的伴随状语,然后,were shepherded 和 were offered support 并列(and 连接)。

if needed = if it was needed。it 指 support。

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  • 提出于 2020-11-18 17:34

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