As a physician who travels quite a lot, I spend a lot of time on planes listening for that dreaded “Is there a doctor on board?” announcement. I’ve been   16  only once — for a woman who had merely fainted. But the   17  made me quite curious about how   18  this kind of thing happens. I wondered what I would do if   19  with a real midair medical emergency — without access   20  a hospital staff and the usual emergency equipment. So   21  the New England Journal of Medicine last week   22  a study about in-flight medical events, I read it   23  interest.
　　The study estimated that there are a(n)   24  of 30 in-flight medical emergencies on U.S. flights every day. Most of them are not   25 ; fainting and dizziness are the most frequent complaints.  26  13% of them — roughly four a day — are serious enough to   27  a pilot to change course. The most common of the serious emergencies   28  heart trouble, strokes, and difficulty breathing.
　　Let’s face it: plane rides are   29 . For starters, cabin pressures at high altitudes are set at roughly      30  they would be if you lived at 5,000 to 8,000 feet above sea level. Most people can tolerate these pressures pretty   31 , but passengers with heart disease   32  experience chest pains as a result of the reduced amount of oxygen flowing through their blood.   33  common in-flight problem is deep venous thrombosis — the so-called economy class syndrome (综合症).   34  happens, don’t panic. Things are getting better on the in-flight-emergency front. Thanks to more recent legislation (立法), flights with at      35  one attendant are starting to install emergency medical kits to treat heart attacks.

As a physician who travels quite a lot, I spend a lot of time on planes listening for that dreaded “Is there a doctor on board?” announcement. I’ve been   16  only once — for a woman who had merely fainted. But the   17  made me quite curious about how   18  this kind of thing happens. I wondered what I would do if   19  with a real midair medical emergency — without access   20  a hospital staff and the usual emergency equipment. So   21  the New England Journal of Medicine last week   22  a study about in-flight medical events, I read it   23  interest.

　　The study estimated that there are a(n)   24  of 30 in-flight medical emergencies on U.S. flights every day. Most of them are not   25 ; fainting and dizziness are the most frequent complaints.  26  13% of them — roughly four a day — are serious enough to   27  a pilot to change course. The most common of the serious emergencies   28  heart trouble, strokes, and difficulty breathing.

　　Let’s face it: plane rides are   29 . For starters, cabin pressures at high altitudes are set at roughly      30  they would be if you lived at 5,000 to 8,000 feet above sea level. Most people can tolerate these pressures pretty   31 , but passengers with heart disease   32  experience chest pains as a result of the reduced amount of oxygen flowing through their blood.   33  common in-flight problem is deep venous thrombosis — the so-called economy class syndrome (综合症).   34  happens, don’t panic. Things are getting better on the in-flight-emergency front. Thanks to more recent legislation (立法), flights with at      35  one attendant are starting to install emergency medical kits to treat heart attacks.

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      

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

3.From the passage we can infer that Tim        .

4.The passage is mainly about        .

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．his father wanted him to be so

      B．his father was a surgeon himself

      C．he had read many books about medicine

      D．he had chances to the old 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 not afraid of seeing blood

      D．decided to give up medicine for faith

4．The passage is mainly about        .

      A．Tim’s life story       B．Tim’s dreams      C．Tim’s marriage      D．Tim’ s patients

      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．his father wanted him to be so

      B．his father was a surgeon himself

      C．he had read many books about medicine

      D．he 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 dreams   C．Tim’s marriage D．Tim’ s patients