语法问题 帮看下 感谢！！

1. But if we are to safeguard the capacity of the oceans to service society’s many and varied needs， we need to do much more.中 to service society’s many and varied needs作定语 作状语都可以  但我认为是目的状语  因为 提供 服务 的执行者 是we

much和more分别是形容词 和 不定代词 
2.I urge Governments and citizens to acknowledge the enormous value of the world’s oceans — and do their part in ensuring their health and vitality.这句话中的2个their前者指的是Governments and citizens 后者指的是 oceans  根据意思 判断 

3.This year’s observance of World No Tobacco Day focuses on “Gender and tobacco, with an emphasis on marketing to women。中with an emphasis on marketing to women是with的复合结构作状语        to women是介词短语 作动名词 marketing的状语    
4.Although fewer than 1 out of 10 women are smokers, that still adds up to an estimated 200 million women around the world。Moreover, that number could grow, since the tobacco industry is spending heavily on 《advertisements》 that target women and associate tobacco use with beauty and liberation 第一小句（Moreover之前）中的that是指示代词 指代前面的从句  作主句的主语  绝对不是引导的非限定性定语从句  that不能引导 非限定定从     that也绝对不能换成which

否则 句子无主句 。
5.Governments everywhere must take action to protect women from tobacco 《advertising》, promotion and sponsorship, as stipulated in the WHO Framework Convention on Tobacco Control.句中as引导的过去分词 短语  作状语 作定语 都可以  

如果 作状语 as 是连词  是带连词的过去分词 短语 作状语 相当于 一个 状语从句 

= as  it  is  stipulated

如果 作定语 as 是 关系代词  相当于 过去分词前 省略 了 is的非限制性定语从句

= as is  stipulated

我认为 是非限制性定语 
6.第4个句子中用advertisements是名词 表示概念  而第5个句子中用advertising是动名词 表示行为  。