题目内容：

As a boy，Tim was much influenced by books about the sea, but in fact by the age of fifteen he had decided to become a doctor rather than a sailor. His father was a dentist and as a result Tim had the opportunity of meeting many doctors either at home or elsewhere. When he was fourteen he was already hanging around the clinic of a local doctor where he was supposed to be helping to wrap up medicine bottles，but was actually trying to listen to the conversations taking place between the doctor and his patients in the next room.

During the war Tim served in the Navy as a surgeon（外科医生）.“That was the happiest time of my life. I was dealing with very real suffering and on the whole making a success of it .”In California he taught the country people simple facts about medicine. He saw himself as a life-saver. He had proved his skills to himself and his ability to take decisions. Thus，while he was able to tell them what to do, he could feel he was serving them. After the war, he got married and chose to be a doctor in the countryside，working under an old doctor who was popular in the area，but who hated the sight of blood and believed that the secret of medicine was faith. This gave the younger man many opportunities to go on working as a life –saver.

1.Tim decided to become a doctor at fifteen mainly because      

A．hisfather wanted him to be so

B．his father was a surgeon himself

C．e had read many books about medicine

D．e had chances to meet many doctors through his father

2.Which of the following is true according to the passage?

A．Tim got married to the old doctor’s daughter.

B．Tim continued working as a surgeon after the war.

C．Before the war，Tim worked as a doctor at a local clinic．

D．While working in California，Tim taught life-saving to the patients.

3.From the passage we can infer that Tim        .

A．was sent to Europe during the war	B．worked as a surgeon during the war
C．was satisfied with his career as a surgeon.	D．decided to give up medicine for faith

4.The passage is mainly about        .

A．Tim’s life story

B．Tim’s dream

C．Tim’s marriage

D．Tim’ s patients