英语长难句？

Question

The government is to ban payments to witnesses by newspapers seeking to buy up people involved in prominent cases such as the trial of Rosemary West.
单从语法上讲，这里involved一定修饰people吗？能不能修饰witnesses？还有by newspapers能不能理解为通过报纸这个手段，seeking to 是修饰government的（政，府为了收买人）？

Answer 1

政府将禁止报社向目击者支付报酬，这些报社试图收买与罗斯玛丽·韦斯特（Rosemary West）案等重大案件有关的人。

involved修饰people，不能修饰witnesses.

by newspapers，是指报社，与前面的payments与关，也就是说payments by newspapers，由报社支付报酬

seeking to，是修饰newspapers（报社），是报社收买人，而不是政府。政府是禁止这种事。

Answer 2

回答：句子分析如下：
1. be + 不定式：准备、打算、计划、应该、是、定于……。如：
The meeting is to take place tomorrow.
You are to be punished for your mistake.
Their job is to sweep the campus.
2. make a payment to sb向某人付款。
3. payments to witnesses by news papers相当于payments to witnesses (which are )made by news papers, 意思是：由报社付款给目击证人。类似用法：the book (written) by Lu Xun 鲁迅写的书，the music (played) by the girl这位姑娘演奏的曲子。
4. seeking (试图，设法，力图)to buy up (收买，买进，买下)people是现在分词短语作定语，修饰newspapers。
5. involved in ...(卷入，参与)是过去分词短语作定语，修饰前面的名词people，相当于定语从句who are involved in ...。
本句翻译：该政府将要对那些付款收买涉及大案要案（诸如罗斯玛丽•韦斯特案件）证人的报社。本回答被提问者和网友采纳

Answer 3

1. 修饰people，不会是witnesses，过去分词通常紧跟在先行词后面。
2. by newspaper就是通过报纸的意思，或者在报上刊登。
3. seeking to修饰witnesses，不是修饰government。

Answer 4

apart from the fact（ that twenty-seven acts of Parliament govern the terms of advertising）,no regular advertiser dare promote a product （that fails to live up to the promise of his advertisements）.
第一个括号是fact的同位语，第二个是product的同位语
简单根据英文思维来直译就是：
除了这个事实(事实是国会的二十七项法案控制了广告的期限），没有一家广告商敢于去推销一件产品（这件产品不能兑现广告中的承诺）
不知道够不够清楚？？

Answer 5

involved in... 修饰people，因为根据规则，一般修饰成份紧跟被修饰的名词或代词。
seeking to.... 修饰newspapers，根据常理，商家利用报纸手段购买人心。
by newspapers利用报纸手段。