scarcely位于句首時，倒裝在scarcely主句中進行。scarcely所在的主句內，謂語動作發生在when或before從句內的謂語動詞之前，因此主句用過去完成時，從句用過去時。不能用than代替句中的when。

scarcely when用法

1、The journey's scarcely begun when he discovers a stowaway: Russell，a chubby，maladroit Wilderness Explorer Scout who's out to earn his Elderly Assistance Badge.

旅途的開始時，他發現幾乎沒有一個偷渡者：羅素，一個胖乎乎，笨拙荒野瀏覽器斯考特誰的，去掙他年邁的援助徽章。

2、Butday had scarcely appeared when we saw our cruel enemy，with two other giants，a most of the same size，leading him; and a great number were coming before him at a quick pace.

但是天剛剛發光，我們就見到我們殘虐的仇人，同著另兩個大人，差不多大小，領著他并且還有一大群人在前面非常快的走來。

scarcely when雙語例句

She was scarcely 18 when she made her debut.

首次出鏡時，她剛滿18歲。

He was scarcely awake when he heard the knock at the door.

他剛醒來就聽見有人敲門。

Bruce had scarcely shaken our hands when the phone rang.

布魯斯剛和我們握了握手，電話就響了。