请帮我分析此英语句子关于宾语从句

Question

By watching what people search for , click on and say online ,companies can aim "behavioural " ads at
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状语 宾语从句，做which 的宾语 主句主语 谓语 宾语

those most likely to buy
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状语

1 我想请问关于这个宾语从句的，跟一般的宾语从句不一样，感觉怪怪的，因为by watching 是做的状语，而在状语中有动名词watching 所以 跟宾语 是宾语从句，这属于什么用法，感觉好怪异。
2 整个 By watching what people search for , click on and say online 做的是状语成分么？
句子 是By watching what people search for ，click on and say online,。companies can aim "behaviorual "ads at those most likely to buy 。

Answer 1

by 是个介词,后面跟介词宾语，来构成介词短语；所以watch要用动名词，这你也明白；watch 是个动词，作及物动词用的时候，当然要跟名词或从句来做宾语，此处what people search for , click on and say online 做watch的宾语从句很正常！


介词短语 都 做 状语；

Answer 2

By watching what people search for , click on and say online,是介词By+动名词的方式状语成分，其中what people search for , click on and say online 作watching 的宾语从句。

those most likely to buy 不是状语，those是at的宾语，most likely to buy是those的定语从句。
欢迎追问。