Question

这句话后面的…… fed throughout the whole year.做句子的什么成分?

They would keep the entire family well fed throughout the whole year.
没太看懂这句话，求详解。谢谢！

Answer 1

They would keep the entire family well fed throughout the whole year.
well fed 过去分词做the entire family的宾语补足语，keep sb fed，跟宾语补足语，fed 过去分词表示feed与 the entire family是动宾关系【被动关系】。

Answer 2

They 是主语（指前面提到的土豆）would keep 是谓语the entire family 是宾语well fed throughout the whole year是过去分词短语作宾补，其中throughout the whole year是过去分词的状语。
句子字面意思：它们会使整个家庭一整年吃没问题。
意译就是：我们一家子靠着这些土豆能过一整年。

Answer 3

首先你要明白the children是主语，had played the whole day long 是定语，用来修饰the children的 如果你在这个句子中用them，那么the children和all of them 就都变成了主语。因为你看啊，这两个句子都是通的： The children were worn out. All of them were worn out. 你用哪一个当作主语，另一个都得哭，是不是？ 如果你在这个句子中使用whom, whom 在这里代指the children而且whom不能做主语，你看： all of whom were worn out 不是一个句子。在这里用whom而不是用who是因为whom做宾格用在介词后面

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Answer 4

fed是过去分词， well fed……是分词短语，作宾语补语。
全句的意思是：
他们(它们)能使整个家庭在一年内吃得很好。（温饱无忧）

Answer 5

keep the family well fed使家人一直吃好，throughout the whole year 一整年。