they can locate flying insects on which they feed 请分析下句中on which 起码回答这2个问题,最好多分析下,1、on 是否是多余的,能否去掉.2、on which 在这里做什么成分,有实在意思没

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they can locate flying insects on which they feed 请分析下句中on which 起码回答这2个问题,最好多分析下,1、on 是否是多余的,能否去掉.2、on which 在这里做什么成分,有实在意思没

they can locate flying insects on which they feed 请分析下句中on which 起码回答这2个问题,最好多分析下,1、on 是否是多余的,能否去掉.2、on which 在这里做什么成分,有实在意思没
they can locate flying insects on which they feed
请分析下句中on which
起码回答这2个问题,最好多分析下,
1、on 是否是多余的,能否去掉.
2、on which 在这里做什么成分,有实在意思没

they can locate flying insects on which they feed 请分析下句中on which 起码回答这2个问题,最好多分析下,1、on 是否是多余的,能否去掉.2、on which 在这里做什么成分,有实在意思没
1 on which they feed ------on不能省略,因为是定语从句的一部分.翻译是:靠它们生存的昆虫 === they feed on the insects

2 on which 是定语从句的一部分 == on the insects they live ------它们靠吃这样的昆虫生活.

on which 作宾语 不能去掉on 在这里和feed 搭配 on which 实际等于where 因为feed的关系 只能用 on which

宾语从句 不能去掉 feed on 是固定搭配

on which引导的是一个定语从句,用介词+关系代词的形式来引导,介词的选用一般是要根据从句中的动词固定搭配而定,就像这一题从句的动词的固定句型为be