as soon as [someone] heard the news
その知らせを聞くとすぐに、彼は歓声を上げた。
As soon as he heard the news, he cheered.
彼はその知らせを聞くとすぐに青ざめた。
He turned pale as soon as he heard the news.
その知らせを聞くとすぐに、誰もが静かになった。
As soon as they heard the news, everyone fell silent.
その知らせを聞くとすぐに、私は泣きたい気持ちになった。
As soon as I heard the news, I felt like crying.