It leads to people buying in bulk without intention of eating them, and clips emerged of people throwing food away.
3个问题分别解答如下:
1. leads to people buying in bulk作什么成分?—— leads to people buying in bulk 是句子的谓语部分。其中,people buying in bulk 是动名词复合结构(即含有逻辑主语people的动名词短语),作 to 的宾语。
2. without intention of eating them是作什么类型的状语?——作条件状语。意为“在无意食用的情况下(购买)”。
3. of people throwing food away是什么成分呢?——是介词短语,作clips 的定语。介宾仍然是动名词复合结构(即含有逻辑主语people的动名词短语),作 of 的宾语,这里 of 表示 “描述” 意义(关于扔掉食物的视频)。 为照顾句子匀称,主语 clips 和作定语的 of people throwing food away,被谓语动词 emerged 分隔。