content(内容)—contents(目录)。
The content of this book is very interesting.(这本书的内容很有趣。)
Look at the contents to find what you need.(看目录找到你需要的内容。)

cook(烹饪;厨师)—cooks(厨师们)。
She likes to cook delicious meals.(她喜欢做美味的饭菜。)
The cooks in this restaurant are very talented.(这家餐厅的厨师们很有才华。)

damage(损害)—damages(赔偿金)。
The storm caused a lot of damage to the houses.(暴风雨给房屋造成了很大的损害。)
He is seeking damages for the accident.(他正在为这次事故寻求赔偿金。)

end(结束)—ends(目的)。
The movie came to an end.(电影结束了。)
All means are employed to achieve one’s ends.(为达到目的而不择手段。)

experience(经验)—experiences(经历)。
She has a lot of experience in teaching.(她在教学方面有很多经验。)
His travels gave him many interesting experiences.(他的旅行给了他很多有趣的经历。)