表示目的狀語的從句可以由that, so that, in order that, lest, for fear that, in case等詞引導，例如：
You must speak louder so that /in order that you can be heard by all.來源：www.examda.com
He wrote the name down for fear that(lest) he should forget it.來源：www.examda.com
Better take more clothes in case the weather is cold
You must speak louder so that /in order that you can be heard by all.來源：www.examda.com
He wrote the name down for fear that(lest) he should forget it.來源：www.examda.com
Better take more clothes in case the weather is cold