When did you last see a polar bear？On a trip to a zoo，perhaps？If you had attended a winter activity in New York a few years ago，you would have seen a whole polar bear club.These "Polar Bears "are people who meet frequently in the winter to swim in freezing cold water.That day，the air temperature was 3 C.and the water temperature was a bit higher.The members of the Polar Bear Club at Coney Island，New York are usually about the age of 60.Members must satisfy two requirements.First，they must get along well with everyone else in the group.This is very important because there are so many different kinds of people in the club.Polar Bears must also agree to swim outdoors at least twice a month from November through February.
Doctors do not agree about the medical effects of cold-water swimming.Some are worried about the dangers of a condition in which the body's temperature drops so low that finally the heart stops.Other doctors，however，point out that there is more danger of a heart attack during summer swimming because the difference between the air temperature and water temperature is much greater in summer than in winter.
The Polar Bears themselves are satisfied with the benefits of cold-water swimming.They say that their favorite form of exercise is very good for the circulatory system（循環(huán)系統(tǒng)）because it forces the blood to move fast to keep the body warm.Cold-water swimmers usually turn bright red after a few minutes in the water.A person who turns blue probably has a very poor circulatory system and should not try cold-water swimming.
The main benefits of cold-water swimming are _______.The Polar Bears love to swim year-round：they find it fun and relaxing.As one 70-year-old woman says，" When I go into the water，I pour my troubles into the ocean and let them float away."
（1）"Polar Bears "in this article are not real bears，are they？
No，they aren′t.No，they aren′t.
（2）What is the first requirement that the members of the Polar Bear Club must meet？
Get along well with everyone else in the group.Get along well with everyone else in the group.
（3）When does cold-water swimming cause more heart attacks according to some doctors，in summer or in winter？
In summer.In summer.
（4）Why does cold-water swimming benefit the circulatory system？
Because it forces the blood to move fast to keep the body warm.Because it forces the blood to move fast to keep the body warm.
（5）According to the article，who should not try cold-water swimming？
A person who turns blue.A person who turns blue.
（6）Complete the sentence in the last paragraph.
The main benefits of cold-water swimming are that it's fun and relaxing.that it's fun and relaxing.
【答案】No，they aren′t.；Get along well with everyone else in the group.；In summer.；Because it forces the blood to move fast to keep the body warm.；A person who turns blue.；that it's fun and relaxing.
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發(fā)布：2024/6/27 10:35:59組卷：5引用：1難度：0.9
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Dear Laura，
Thanks for your message.Yes，I'm having a great time on my exchange program in France.I was a bit nervous before I arrived here，but there was no reason to be.My host family is really nice.They go out of their （1）wto make me feel at home.The grandmother has a teenage granddaughter （2）wis really kind.She always talks to me （3）iFrench to help me practice.My French （4）（improve） quickly since I arrived here! （5）TI still make lots of mistakes，it doesn't worry me as it used to.
Learning how （6）（behave） at the dinner table is a hard part for me.As you can imagine，things are really different from the way they are at home.For example，you shouldn't put your bread on your plate.You （7）（suppose） to put it on the table!Besides，you shouldn't eat anything with your hands except bread.Another thing is that it is very （8）（polite） to say you're full.If you don't want anything else，you should just say， "It was delicious." I find it difficult to remember everything，but I'm （9）（gradual） getting used to it.French customs are not so strange to me any （10）m.
I'll write again soon and tell you more about my life here.Hope you are having a good school year.
Yours，
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