题目内容：

During adolescence, 1.很多青少年感到孤独. Life never seems to be going fast enough, but in other ways, life seems to be rushing too fast. Everything seems different, yet the same, day by day.

Although it may be difficult to believe, these feelings are common for teenagers. These can be thought of as ‘growing pains’—2.青少年面临的那些困难as they grow to adults.

3.Teenagers can easily become confused with the changing world inside and outside. They also go through great physical changes, such as growing taller and their voices getting deeper. 4.Along with these physical changes, there come many psychological changes, too. But girls and boys tend to be different in this regard.

When it comes to society, teenagers struggle to be independent.5.They may badly want and need their parents' love, yet feel distant; they may want to be in a group, yet desire independence.

Fortunately, these growing pains do not last long. Everything will turn out right at last.