Your opening sentence gives a great overview of how the rest of your article will proceed.

FORBES: Why the Cloud Needs a Network Decongestant

He acknowledged that fact in the opening sentence of his prepared statement to the grand jury.

CNN

It has evolved over the years to fit different circumstances, including my own version about investing in the opening sentence.

FORBES: Occam's Razor on Investing

And one sounded like an entry from the annual Bulwer-Lytton contest for the best opening sentence of an imaginary horrible novel.

FORBES: My Terrifying Encounter With Yahoo Email: A Survivor's True Shaggy Dog Story

Whether or not we do it right, every journalist wants you, the reader, to stay hooked past our opening sentence or lead.

FORBES: What Journalists Know About Asking For Money

Opening a Lords debate, Dr Rowan Williams said the sentence would have a harmful effect on the family.

BBC: NEWS | UK | England | Oxfordshire | Bishop's fears over jailed mother