北师大高中英语:

Unit1：I'll put some warm water in the basin so you can wash your face. (P12)

Unit14: Tell her to make a timetable so she can finish the plot summary and book report on time.

Unit19: Inform a friend of your targets so they can help motivate you as well.

解释： 

so that引导目的状语从句在非正式文体中可省略that。 (现代英汉综合大辞典)

Speak louder so the people in the hall can all hear you.

大声点讲,以便大厅里的人都能听清。