have difficulty(in)doing sth做某事有困难

　　question vt.询问

　　fit in适合，适应，融入(群体)

　　※that these kinds of growing pains do not last是that引导的表语从句。

　　last/lɑːst/vi.持久　vt.持续，维持(一段时间)

　　in the end最后，终于

　　turn out结果是，证明是

　　challenge/'tʃælɪndʒ/n.& vt.挑战

　　be traded for被换为......

　　原文呈现

　　Growing pains

　　Many teenagers feel lonely, as if no one understands them and the changes they are going through. Day by day, everything seems different, yet the same. Life never seems to be going fast enough; yet, in other ways, like a race car, life seems to be rushing too fast and even going out of control. Has anyone else ever felt this way?

　　These feelings are a common part of adolescence-the time of life between child and adult. And, though it may sometimes be difficult to believe, you are not alone-every adult has gone through adolescence, and your friends are going through it right now along with you. It is common for teenagers to feel lonely and misunderstood.These feelings can be thought of as growing pains-the difficulties that teenagers face as they grow to adults.

　　As teenagers grow, it is normal for them to become confused with the changing world both inside and outside of them. During adolescence, teenagers go through great physical changes.They grow taller and their voices get deeper，among many other developments.

　　Along with these physical changes, there come many psychological changes. Boys and girls tend to be different in this regard.Many boys become risk-takers-they want to find their own limits and the limits of the world around them, but may not have the wisdom to make good choices in their behaviour. At the same time, girls often want someone-anyone-to talk to, as they try to deal with their strong feelings.

In the social world，as teenagers get older, they struggle to depend on themselves. They may badly want and need their parents' love，yet feel distant；they may want to be part of the