题目内容：

Research has shown that music has an important effect on one’s body and psyche (心灵). In fact, there is a growing field of health care known as music therapy(治疗), which uses music to treat diseases. Even hospitals are beginning to use music therapy. This is not surprising, as music affects the body and mind in many powerful ways.

Research has shown that quick music can make a person feel more alert（警觉戒备）, while slow music can produce a calm, deep thinking state. Also, research has found that music can change brainwave activity levels. This can help the brain to change speeds more easily on its own as needed, which means that music can bring lasting benefits to your state of mind, even after you’ve stopped listening.

Breathing and heart rates can also be influenced by music. This can mean slower breathing, slower heart rate. This is why music and music therapy can help reduce the damaging effects of long-term stress, greatly promoting (促进) not only relaxation, but health.

Music can also be used to bring about a more positive state of mind by helping to keep worries away. Music has also been found to bring many other benefits, such as lowering blood pressure and reducing the risk of strokes（中风）. It is no surprise that so many people are considering music as an important tool to help the body become or stay healthy.

1.What can we infer about music therapy(治疗)?

A．It is a type of music.

B．It is a research about music.

C．It is a kind of musical effect on diseases.

D．It is the use of music method to help treat diseases.

2.According to the second paragraph, we can know that ________.

A．music with different speeds has different effects

B．quick music is not good for one’s health

C．slow music can help one to think more calmly and slowly

D．music will have less benefit after one stops listening

3.The reason why music can help deal with stress is that ________.

A．it is used by many hospitals

B．it can help change brainwaves

C．it does good to breathing and heart rates

D．it can bring a more positive state of mind

4.According to the passage, music can help deal with all the following EXCEPT ______.

A．nervousness                           B．mind illnesses

C．strokes                               D．high blood pressure