帮我分析一下这几个句子的成分

题目

帮我分析一下这几个句子的成分
1.so many thousands of terrified people died every time there was an outbreak
2 It seemd the water was blame
3 To prevent this from happening again,jogn snow suggested thar the source of all water supplies be examined and new methods of dealing with polluted water be found.
顺便教下我应该如何去分析.

答案

成分分析最简单的不过主语,谓语,宾语/表语/状语,及在其基础上的补语,从句1.主语:so many thousands of terrified people 谓语：died状语（从句）：every time there was an outbreak 2.形式主语：it谓语：seemed（系...