It’s not safe alone on the sea.John may have a lot of proble

It's not safe alone on the sea.John may have a lot of problems.Now,you have going to think it for
him.What problems may John have?尽量多一点,
最好再配上答案的翻译，

He may be short of food and water.他会缺少水源和食物
He may come across with sharks and get eaten.他可能遇到鲨鱼被吃掉
He may fall into the sea.他可能掉进海里
He may die of thirsty.他可能会渴死
He may lose his way.他可能会迷失方向
He may encounter pirates.他可能会遇见海盗