1 . 根据短文内容，从所给词语中选择恰当的词并用其正确形式填空（每词限用一次）。

cause     choice     common     grow     inside     news     on     tall     want     who

Many teenagers feel lonely. You are not alone. In fact, it is very     1     for teenagers to feel lonely. This feeling is considered as growing pains — the difficulties that teenagers face while growing up.

As teenagers     2    , it becomes harder for them to deal with the changes both inside and outside. They experience great physical (身体的) changes. They grow     3     and their voices get deeper, among many other developments.

Along with these outside changes, there come many     4     changes. Many boys always want to take risks, but may not have the ability to make right     5    . When girls try to deal with their strong feelings, they often     6     someone to talk to.

In the social world, as teenagers get older, they try to depend     7     themselves. They may also need love badly at the same time. This will     8     trouble. They often question     9     they are and what they should do.

The good     10     is that these kinds of growing pains do not last long. In the end, everything will be OK — the teenager becomes a healthy adult. This period helps teenagers to become better.

2 . Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.

A. conflicts             B. tackle             C. encounter             D. instinctive             E. senses F. regulate             G. sparks             H. originates             I. immediate             J. disagreeable K. interfere

When you are frightened or feel endangered, your breathing and your pulse quicken in order to give you a better chance of either running away from the threat or defending yourself against it. When the danger is eliminated, your body returns to its pre-stress state.

Psychological stress can also be triggered in response to an external-factor, as with a fear of heights or public speaking. However, since it     1     inside our own minds and is strongly tied to out past experiences, psychological stress can also be caused simply by our thoughts about a(n)     2    event is enough to make some people anxious, even when the event is days away.

Experience plays a large role in determining what you consider as stressful. Many reactions to stress are subconscious or     3    and therefore, difficult to prevent. However, while the body’s initial reaction is hard to     4    , the choices you make can play a large role in helping keep psychological stress from going out of control.

So, what are some major types of stress?

The first type of stress is survival stress. When in fear for your safety, your body prepares to     5    the problem either by facing it or fleeing from it. Your body reacts to this type of stress by sharpening your     6    of sight and hearing and increasing your breathing and heart rate.

Another type is environmental stress, which is caused by unpleasant things you     7    in daily life. Workplace stress, which is often caused by overwork or     8    with coworkers, is one common environmental stressor.

The third type of stress is internal stress. This type of stress is caused by thinking about stressful situations that occurred in the past or will take place in the future. Being stressed is an appropriate reaction to a(n)     9    threat, but the same reactions that are helpful in the short term can prove harmful over time. Long-term-stress, known as chronic stress, can cause both mental and physical health problems. For example, many people find preparing for a job interview or to give a speech to be a stressful activity become overwhelming and can     10    with daily life if they last for days or weeks. With chronic stress, severe health consequences can be caused, including heart disease, depression, excessive weight gain, sleeplessness, and digestive problems. Long-term stress tends to weaken your immune system, makıng you more likely to contract flu or other illnesses. Furthermore, it slows down your recovery from these illnesses.