只想分析下語法結構,What is it that makes some people more effective t

題目：

只想分析下語法結構,
What is it that makes some people more effective than others?Is it skill,or luck,or secret knowledge?

解答：

是個強調句的疑問形式
還原回來是it is What that makes some people more effective than others?Is it skill,or luck,or secret knowledge?
強調的是主語,去掉it is that ,句子就是
What makes some people more effective than others
What主語,makes謂語,some people 賓語,more effective 賓語補足語,than others壯語
Is it skill,or luck,or secret knowledge
it主語,Is系動詞,skill,or luck,or secret knowledge並列表語