Question

关于托福TPO5 第二篇阅读的问题：求详细分析下面的句子成分

Contrary to the arguments of some that much of the pacific was settled by Polynesians accidentally marooned after being lostand adrift, it seems reasonable that thisfeat was accomplished by deliberatecolonization expeditions that set out fully stockedwith food and domesticated plants and animals.

Answer 1

Contrary to... 一直到逗号前是 形容词短语作伴随状语，表示与.... 相反
其中，that much of the pacific was settled by Polynesians accidentally marooned after being lostand adrift 是 arguments of some 的同位语从句
主句的形式主语是it；seems是系动词；reasonable 是形容词作表语；整句是一个主系表结构。
that this feat... 是主语从句后置，that set out... 是定语从句，修饰 colonization expeditions

全句翻译：

有些人认为太平洋的大部分地区是波利尼西亚人意外迷路后四处漂流，摆脱不了孤立无援的处境才定居于此的。与之相反的似乎更合理的解释是：这一壮举是由有意想移居的远征队完成的，他们是备齐食物和家养动植物后出发的。

Answer 2

有些人认为玻利尼西亚人是因在海上迷失方向或因海上漂流而在太平洋的许多岛屿偶然定居下来的，与此相反，认为这些人是怀着殖民的期望，带着充足的食物与本国的动植物特意前往这些岛屿，也许是更为合理的观点。
句子成分分析：（1）Contrary to引导一个短语，与主句it seems reasonable....构成对比关系，这是句子的整体结构；（2）在contrary to引导的短语中，the arguments of some，名词词组，受其后that引导的定语从句的修饰，其中the arguments of some，意为the arguments of some people（有人认为）；（3）主句it seems reseasonable that......中，第一个that引导主语从句，主语从句中expenditions后的that引导一个定语从句，修饰限定expeditions。
个人如此理解，仅供参考。