以下是六年级英语上册常用的成语表达法：

一心一意 have one thing on mind

三思而后行 think things over before doing them

挑灯夜战 stay up late to study

尽心尽力 do one's best

胸有成竹 have a good plan before starting

十拿九稳 be sure to succeed

一举两得 get two results for the price of one

意想不到的惊喜 an unexpected surprise

不可避免的命运 the inevitable fate

塞翁失马，焉知非福 A loss may turn out to be a gain.

欲速则不达 Haste makes waste.

既来之，则安之 Since we are here, we may as well make the best of it.

天下没有不散的筵席 All good things come to an end.

千里之行，始于足下 A thousand-mile journey begins with the first step.

台上三分钟，台下十年功 Three minutes on stage require ten years of practice off stage.

千里之堤，溃于蚁穴 A thousand-mile dike