1.Our ranch was located several miles north of Divide
ranch 和 farm 的区别？
ranch
n.大农场 v.经营牧场
farm
n.农场，农庄; 农家; 畜牧场; 农田; vt.耕种; 养殖; 承包，包出; 佃出（土地）; vi.经营农场;
【ranch更大一点，farm一点点大都可以算，比较小一点】
2.The closest thing to traffic was when the Union Pacific Freight trains rumbled through th valley.
rumble 轰轰隆隆

3.decided to christian its natural water.
christian在这里名词作动词，英语中有许多名词可用作动词，使句子形象生动，富于口语化。
例：1. Don't baby your child. 不要娇惯孩子。
　　baby=spoil
2. She is outdoors gardening every afternoon. 她每天下午都在户外搞园艺。
　　garden=cultivate a garden
3. He patterns himself upon his father. 他模仿他的父亲。
　　pattern=imitate sb.