英语句式结构分析?There's a kind of false precision being hawked by p

很有意思的句子,一段一段来.
1/ There's a kind of false precision being hawked by people 这是正常there be + 主语 + doing sth.结构；
2/ ...claiming they are doing ancestry testing.是现在分词做 people 的后置定语,不是状语,更谈不上补足语了.请看：...by people who are claiming (that) they are doing ancestry testing..
楼上 "2011-10-28 09:13 rwrrrwww” 到处灌水胡扯语法,误导他人.

是的

后置定语；
是

claiming 是现在分词做people的补语，而people是介词by 的宾语。
they are doing ancestry testing 是claiming省略了that 的宾语从句，你这个说对了。