重点讲解：
1. thanks to 幸亏；归因于；
Thanks to your help, we accomplished the task ahead of schedule.
亏得你们帮忙，我们才提前完成了任务。
2. prompt sb. to do sth. 促使；推动；引起；
His words, though quite brief, are earnest enough to prompt one to deep thought.
他话讲得不多，可是语重心长，发人深思。
3. set up 创建；建立；安排；组建；
This store has set up an after-hours department.
这个商店附设了一个早晚服务部。
4. be home to 是……的所在地；
The forest teems with life. Whether up in the tree tops or down among the grasses, everywhere is home to one species or another.
林中处处有生机，不论是高大的树木或林下的草本植物，都是生物栖息之处。