11.There are endless motivations for human behaviour,from the basic drives for food to more complicated ones,such as sympathy,envy and anger.But none of these explain behaviours that we call compulsions (强迫症).They come from a need that is desperate and tortured (折磨).They may bring relief,but they bring little enjoyment,and while one part of our brain desperately wishes to stop them,another is afraid of stopping.
I used to view compulsions as foreign and almost frightening.But in the course of my research,two things happened.First,when I got to know people who were compulsive,their behaviour didn't seem unreasonable at all.Second,I realized that although people with the most extreme compulsions seem like outliers (另类人),the anxiety that drives them to those extremes is universal.
Over any year,many of us find ourselves in the control of a compulsion that falls short of something that is disabling enough to qualify as a mental disorder-in fact,some compulsions are adaptive,helping us lead our lives or perform our jobs more effectively.
Like many people,maybe you feel forced to reach for your smart phone as soon as you wake up in the morning.Fortunately a growing number of experts have begun to succeed in distinguishing addictions from compulsions.
An addiction begins with a flash of pleasure accompanied with danger; it's fun to gamble or to drink,and it also puts you at risk.Addictions involve acting without planning or even thought,driven by an urge for immediate satisfaction.Compulsions,in contrast,are all about avoiding unpleasant outcomes.They are behaviours we repeat many times to relieve the anxiety brought on by the possibility of negative consequences.But the actual behaviour is often unpleasant-or at least not particularly rewarding,especially after many rounds of it.
Behind every compulsion is the need to avoid what causes you pain or anxiety.Compulsive behaviour is not necessarily a mental disorder.Some forms of it can be,and people in its control deserve to be diagnosed and helped.But many are expressions of psychological needs we all feel:to be at peace and in control,to feel connected and to matter.And if those are mental illnesses,we're all crazy.

56.From the first two paragraphs,we know thatC.
A.compulsions can bring relief as well as enjoyment
B.compulsive people will prefer unreasonable behaviour
C.compulsions may be an understandable response to anxiety
D.compulsive people must be frightening and behave differently
57.The main difference between addictions and compulsions lies inC.
A.human relationships  
B.financial rewards  
C.internal drives 
D.social expectations
58.What's the author's attitude towards compulsion?A
A.Objective.B.Negative.C.Doubtful.D.Cautious.
7.Winter is often a time when we switch our activities indoors and wait for spring.We miss out on the fresh air,beautiful scenery and healthy exercise that outdoor activities in Saskatchewan offer.If you are not the skiing or snowmobiling type,ice fishing is a great way to spend part of your winter indoors.
Murry Koob,a biologist with the Saskatchewan Ministry of Environment,notes that there are over 50,000 fish-bearing waters in this province."We have a lot of opportunities for ice fishing here,especially when most lakes are covered with ice for almost half of the year."
It is estimated that one third of those who fish during the summer also fish in the winter.Koob says that a minimum amount of equipment is required for ice fishing."In reality,all you need is something to cut a hole in the ice and a line with a hook on it.Warm clothes are obviously needed,too."
Ice fishing can start as soon as the ice is thick enough to support a person walking on it:about 10cm thick.When it reaches 30cm,it will support a truck.Koob warns that ice thickness can vary greatly,so it should be tested as you crossit.He suggests that anyone fishing on the ice carry emergency equipment,such as a throw rope,in case you break through the ice."you should always fish with a companion and let people know where you will be fishing.
Carrying a cellphone with you is also a good idea.As noted,the equipment for ice fishing an be simple and inexpensive----or it can be costly."I've seen people fishing with a home-made chisel (凿子) and a spool of line.But you can also spend hundreds of dollars or more on underwater cameras and portable tent-like shelters or a wooden shack.It all depends on how much you want to spend,"said Koob.
Often,the hardest part about ice fishing is getting out on the lake and cutting a hole through the ice.
25.The underlined word"it"in paragraph 4 refer toB.
A.ice          B.ice thickness    C.rope      D.Ice fishing.
26.If you like to go ice fishing,D.
A.you should have many pieces of equipment
B.you should stay on the ice for a long time
C.you should be dressed in better clothes
D.you should make sure of your safety
27.The throw rope suggested in the passage means thatB.
A.more fish can be taken home with it
B.it can meet the need of emergency
C.a hole in the ice can be broken easily
D.It can be used to break through the ice.
28.Which of the following is NOT true according to the passage?C
A.Go fishing with a companion is necessary.
B.An underwater camera is also a good idea.
C.The ice reaching 30cm thick is the bottom line to fish.
D.You can take a tent-like shelter with you.

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