请帮我分析一下这个句子我学新概念三上面的句子：Theoldfarmhousethefamilylivedinwastobereplacedbyanew$500,000home.这里的wastobe我不懂,为什么硬要tobe……,而不直接wasreplaced,变成：Theoldfarm

Question

请帮我分析一下这个句子
我学新概念三上面的句子：The old farmhouse the family lived in was to be replaced by a new $500,000 home.
这里的was to be我不懂,为什么硬要to be……,而不直接was replaced,
变成：The old farmhouse the family lived in was replaced by a new $500,000 home.
望英语达人给个详细说明,谢谢!

Answer 1

be to do有will的意思
也就是说那话的时候,老农场将要被新房取代.
你改后就成了,说这话的时候老农场已经被新房取代了.