题目

Some people have a very poor sense of direction. Unluckily, I am one of them. I have visited a place many times but I may still get lost there the next time.  When I was a little girl, I never dared ask strangers the way. So I used to walk round in circles and hope that by chance I would get to the place I was going to.  Now, I am no longer too shy to ask people for directions, but I often receive helpless or even wrong information. So I try to avoid giving people wrong directions. If anyone asks me the way to somewhere, I always say, “Sorry, I am a stranger here.”  Once on my4．蛋白质是建造和修复身体的重要原料，人的生长发育以及细胞受损的修复和更新都离不开它，此外它也能被分解，为人体的生命活动提供能量．维生素是一类比较简单的有机物，其中大多数是人类不能自己制造的，只能从食物中摄取，人体一旦缺乏就会受到影响甚至患病．