题目内容：

    As I drove along the road, a small car flew across the center divider from the opposite direction and crashed into my car head-on, I fainted and was awakened by the ringing of my mobile phone.

I was brought to Kuala Lumpur General Hospital bleeding on from my nose, mouth and legs. But the hospital staff was too busy to attend to me, so I called a friend to tell him about the accident. Some friends arrived very soon and sent me to a private hospital nearby. I saw my injured feet hanging from my body, blue and lifeless, and I begged the doctors to save them at all costs. They calmly promised to do their best.

The doctors made it. After I was discharged, I was given ten months medical leave. My heart sank, knowing that it meant I, a big man, couldn't work. How was I going to support my 65-year-old mother and other family members? I felt completely helpless, but a lot of unexpected blessings came my way. I had many visitors during my 14 days in hospital and when I was recovering at home. Friends and relatives helped me with my banking, insurance or simply came to cheer me up.

When the casts （石膏）were removed, I did not let the sight of my weak legs discourage me. I worked hard at my physiotherapy （物理疗法）with only one aim. After eight months, I was walking without the aid of a walking stick. On February the following year, I returned to my job again. Today, after eight years, I have travelled to many countries as a tour leader.

The accident makes me realize how lives can change in a split second. I value life more, not only of my own but also of everyone I know, and I will always try to help when I know of someone in trouble.

1.What made the author come back to life in the traffic accident?

A.Someone made a call to him.

B.A car crashed into his car head-on.

C.One of his friends gave him first aid.

D.His mobile phone was out of order suddenly.

2.What does the underlined part "was discharged" in paragraph 3 probably mean?

A.Was inspired. B.Got injured.

C.Left hospital. D.Was discovered.

3.What can we learn about the author from paragraph 4?

A.He is honest and strong. B.He is optimistic and determined.

C.He is learned and intelligent. D.He is discouraged and desperate,

4.What conclusion does the author draw from the accident?

A.Life is very precious to people.

B.Many people are in trouble in life.

C.It's a hard job to be a tour guide.

D.It's a must for someone to help others.