First impressions often dictate whether a customer will visit your booth or not at a trade show, and by creating an eye-catching booth you will instantly increase your opportunity of having a successful show.

想請教，介詞of后為何要用動名詞having, 為何不能直接是a successful show?

increase your opportunity of having a successful show：

沒having，opportunity 和show 就沒任何關(guān)聯(lián)性。加了having 表達(dá)一個“動賓事件”。意為“獲得成功演出的（機(jī)會）”。

除此之外，大家把of having 轉(zhuǎn)換為不定式，就應(yīng)該好懂了：

increase your opportunity tohave a successful show

your opportunity to do sth. 你做某事的機(jī)會。沒了“做”，意義不完整。