This build-up blocks the flow of blood, reducing the heart's blood supply.这个句子中的reducing为什么是动名词形式?如果这样写This build-up blocks the flow of blood, reduce the heart's blood supply.语法上有错误吗?
问题描述：
This build-up blocks the flow of blood, reducing the heart's blood supply.这个句子中的reducing为什么是动名词形式?如果这样写This build-up blocks the flow of blood, reduce the heart's blood supply.语法上有错误吗?
答
reducing接状语从句 此时是主动故用ING如果是被动的要加ED
reducing=which reduces 两者等同 不能单用reduce