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The day before a long flight you are hurrying through last-minute chores and errands£¬packing and reading guide books.Then£¬on the plane £¬you have several drinks with dinner and stay up late watching the movie.After a brief nap £¬it?s time for breakfast and a morning arrival in£¬let?s say£¬Paris or Rome£®Adrenaline(ÉöÉÏÏÙËØ)flowing£¬you spend the entire day sightseeing and taking pictures .By evening£¬exhaustion has set in£¬and the next morning£¬you can hardly wake up before noon £® ¢Ù Most people who travel by air across multiple time zones fall victim to this trouble of modem air travel .They may suffer from any of a number of unpleasant symptoms £¬including sleeplessness£¬fatigue(Æ£ÀÍ)£¬sickness£¬and sleepiness.

Acording to Dr.Harriet Minsky£¬professor of psychology at Montreal University£¬the symptoms of jet lag(·ÉÐÐʱ²î·´Ó¦)vary from person to person £¬and also vary according to how far a traveler has flown Recovery from jet lag also varies ¢Ú Dr.Minsky points out that there are three primary causes of jet lag£¬ and of these£¬ two are avoidable£®First£¬ people often wear themselves out getting ready for a trip£¬ so they are already exhausted when they get on the plane£®Second£¬ long-distance travelers often have a couple of drinks to pass the time£®The alcohol can cause a stomach upset and disturb their sleep.

The third and unavoidable cause of jet lag is the fact that long distance air travel upsets your internal biological clock£®Dr£®Alvin Lacy£¬ chief of general medicine at Northern Medical College£¬ explains that our inner clock controls our cycle of sleeping and waking.

¢Û Without them£¬ the brain tends to set its biological clock to a longer day£®This means that£¬

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for most travelers£¬ the effects of jet lag are less severe on trips toward the west£¬ because the travel is following the sun£®In traveling toward the east£¬ the body must adjust by shortening its day£¬ going against the body's natural tendency£®This explains why trips from west to east often result in greater suffering from jet lag.

¢Ü For example£¬ Mnight owls£¬M people who are usually most alert and lively late at night£¬ are less likely to feel the effects of jet lag£®In terms of personality types£¬ extroverts (people who are sociable and like to be in groups) tend to suffer less than introverts.

Many people believe that there must be some quick and easy cures for jetag-from vitamins(

ά

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ËØ)to special diets£¬ but research has shown that none of these are very effective£®However£¬ Dr£®Minsky tells travelers that if they follow certain common sense strategies£¬ they will overcome jet lag more quickly.

µÚÒ»½Ú¸ù¾Ý¶ÌÎÄÄÚÈÝ£¬´ÓA¡¢B¡¢C¡¢DºÍEÖÐÑ¡³ö×îÊʺÏÌîÈ˶ÌÎĿհ״¦µÄÑ¡Ï²¢½«ÐòºÅ¼°ÏàÓ¦´ð°¸ дÔÚ´ðÌâÖ½ÉÏ¡£Ñ¡ÏîÖÐÓÐÒ»ÏîÊǶàÓàÑ¡Ïî¡£ A£®Jet lag has taken holD£®

B£®Experts recommend ways to escape the effects of jet lag. C£®Individuals are not all affected to the same degree by jet lag.

D£®The brain lakes signals from the amount of light and other features in the environment.

E.Some sufferers feel better gradually while others feel better on some days and worse on other days.

µÚ¶þ½Ú¸ù¾Ý¶ÌÎÄËù¸øµÄÐÅÏ¢£¬ÓÃÒ»¸öÍêÕûµÄ¾ä×ӻشðÏÂÃæµÄÎÊÌ⣬²¢½«ÐòºÅ¼°ÏàÓ¦´ð°¸Ð´ÔÚ´ðÌâÖ½ÉÏ¡£

¢ÝAccording to Paragraph 7£¬ who are less likely to suffer from jet lag?

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I can imagine Robin shouting£¬¡°Hey£¬

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She just wouldn?t leave them ¢Ù

¡°I can do anything they can do!¡± she thought£®No matter how many times they laughed at her£¬

she kept coming back£¬ demanding to be ¢Ú of their games£®¢Û I didn?t know her then£¬ Tve heard lots of her stories£®I deeply respect her ¢Ü (determine) and ability to stand up for herself£¬ and I am grateful to have such a positive role model.

Robin wasn't the only girl in her neighborhood£¬ but she was the only one who refused to accept that there were things she couldn?t do as well as any boy£®At that time£¬ girls ¢Ý (not allow) to join the village baseball league£¬ until Robin came along£®She took a handwritten request to all the neighbors£¬ asking for their support£®To everyone?s ¢Þ £¬

she got at least one signature from every house in town£®And£¬ because the officials were unable tooppose that evidence of public opinion£¬ Robin became the ¢ß girl admitted into the baseball league. Recently£¬ I asked her ¢à gave her the confidence to keep challenging the status quo (ÏÖ×´).

She explained£¬ UI never thought about why I did what I did£®I just knew that my life is as valuable as anyone else's£¬ and that we all deserve an equal chance to develop our own talents at our own pace.¡±

Thanks ¢á Robin£¬ Tve found the courage to believe in myself as I go out into the world on my own£®I don?t know yet where I?m going or how I?ll get there£¬ but I hope that someday my own grandchildren will look ¢â to me with admiration as I do to Robin.

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