题目内容：

Do you ever find yourself getting really unhappy for almost no reason? Or suddenly feeling down without knowing why? But why is the feeling so common among teenagers? Maybe you're starting a new school and not able to see old friends. Getting good grades or wanting to be better in sports or other activities can be a concern (关注)for many teenagers.

   Being accepted by friends is important. teenagers also may notice, for the first time, a sense of distance from parents and family. You may feel you want to be on your own and make your own decisions, but it can also seem a bit lonely at times.

    Another important reason for mood(情绪)changes is biology. When puberty  (青春期) begins, the body starts producing hormones (荷尔蒙) . These hormones cause physical changes in the body. But at the same time, they also seem to cause mood changes. Here are some things you can do that might make those bad moods a bit easier to deal with.

●  Remember you're not alone. Although not every teenager experiences mood changes to the

    same degree, they are common.

●  Talk to people you trust, Friends can help each other by realizing that they're not alone

    in their feelings. Talking to parents is important, too. Parents can share their own

    experiences dealing with bad moods. Teachers are often good resources and a doctor can

    help to answer questions about development.

●  Get enough sleep, Though it can be hard to find enough time, getting enough rest is very

    important. Being tired can lead to more sadness.

●  Create. Taking part in some kinds of activities, like building something out of wood, or

    starting an art or music piece.

1.According to the passage, ________ is common among teenagers.

A. getting unhappy for no reason

B. getting good grades

C: breaking school rules

D. asking the doctors for help

2._________ may not make some teenagers be in bad moods（心情）.

A. Study pressure   

B. Missing old friends

C. The sense of distance from parents

D. Getting good grades

3. It's easier to deal with your mood changes by _______            .

①realizing they are common  ②explaining your feelings to people you trust 

③playing computer games  ④being creative  ⑤starting a new school   ⑥getting enough sleep

A. ①②④⑥B. ①②③⑥  C. ②④⑤⑥   D. ①③④⑤

4. The title of the passage is_________          .

A. teenagers' ideas      B. teenagers' mood

C. teenagers' puberty     D. teenagers' problems