题目内容
（请给出正确答案）
A．For her husband.
B．For her nervousness.
C．For her own holiday.
D．For her children.
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Her sole aim was to take shelter ______the storm and to get herself warm.
A．for
B．from
C．in
D．over
A．For her study.
B．To order some filing cabinet.
C．To buy something to decorate her dormitory room.
D．To find some topics to discuss in the class.
Most people who travel long distances complain of jetlag(喷气式飞行时差反应). Jetlag makes business travelers less productive and more prone【C1】______ making mistakes. It is actually caused by【C2】______ of your "body clock"-a small cluster of brain cells that controls the timing of biological【C3】______ . The body clock is designed for a 【C4】______ rhythm of daylight and darkness, so that it is thrown out of balance when it【C5】______ daylight and darkness at the "wrong" times in a new time zone. The【C6】______ of jetlag often persist for days 【C7】______the internal body clock slowly adjusts to the new time zone.
Now a new anti-jet, lag system is【C8】______ that is based on proven【C9】______ pioneering scientific research. Dr. Martin Moore-Erie has【C10】______ a practical strategy to adjust the body clock much sooner to the new time zone【C11】______ controlled exposure to bright light. The time zone shift is easy to accomplish and eliminates 【C12】______ of the discomfort of jetlag.
A successful time zone shift depends on knowing the exact times to either【C13】______ or avoid bright light. Exposure to light at the wrong time can actually make jetlag worse. The proper schedule【C14】______ . light exposure depends a great deal on【C15】______ . ravel plans. Data on a specific flight itinerary(旅行路线) and the individual's sleep【C16】______ are used to produce a Trip Guide with【C17】______ on exactly when to be exposed to bright light.
When the Trip Guide calls【C18】______ bright light you should spend time outdoors if possible. If it is dark outside, or the her is bad,【C19】______ you are on an aeroplane, you can use a special light device to provide the necessary light【C20】______ for a range of activities such as reading, watching TV or working.
【C1】
A．for
B．from
C．to
D．of
A．For companionship.
B．For amusement.
C．For protection against robbery.
D．For hunting.
【C17】
A．For instance
B．In essence
C．In contrast
D．Of course
A．For some superstitious reasons.
B．Only for decoration.
C．The emperor liked it.
D．For the covering of the nails.
【C18】
A．For beginning with it
B．For it to begin with
C．With beginning it
D．To begin with
A．For boat racing.
B．For renting.
C．For speed competition.
D．For the season.
