Question

哪位大神能帮我分析一下这个句子的成分，例如主谓宾，从句之类的，急急急，拜托了，小生感激不尽

A future husband wanted to be sure that if his marriage didn't work out, he could keep his treasured ice-cream collection safely stored away in a freezer

Answer 1

a future husband 是主语，wanted谓语，to be sure...in a freezer宾语。
宾语中，sure是表语，be sure后跟从句一般认为是宾语从句，所以that是宾语从句的连接词。
在that从句中，if引导条件状语从句，在条件状语从句中，his marriage是主语，didn't work out是谓语。that从句里的主句的主语是he, could keep是谓语，his treasured ice-cream collection是宾语，safely状语，stored away in a freezer是过去分词短语做宾语补足语，其中in a freezer是地点状语。