同学你好，该知识点来自沪江网校《英语零基础直达PETS三级/公共英语三级【年中特惠班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学，你好~

这里是短语 be due to do sth. 按期/预定要做某事    
例如：
The team are due to fly to Italy next month. 该球队预定下个月飞往意大利。
His new book is due to be published next year. 他的新书预计明年出版。

补充一下due to的另外2个意思
1. be due to sb 应付给或应给予某人
例如：A great deal of money is due to you. 要付给你一大笔钱。
Respect is due to older people. 年长者应受到尊重。

2. be due to  由于，因为
His absence was due to the storm. 他因暴风雨而缺席。
Her success was due to her hard work. 她成功是因为她努力工作。

希望助助的解答可以帮到同学，祝同学学习进步~