Passage E
    Cats never fail to interest human beings.They can be friendly towards humans，but they lead a mysterious lives of their own as well.They never become tame like dogs and horses.As a result，humans have learned to respect their independence.
    Most cats remain doubtful of human all their lives.One of the things that attracts us most about cats is the popular belief that they have nine lives.Obviously，there is a good deal of truth in this idea.A cat's ability to survive falls is based on fact.
    Recently the New York Animal Medical Center made a study of 132 cats over a period of five months.All these cats had one experience in common：they had fallen off high buildings，yet only eight of them died from shock or injuries.Of course，New York is the ideal place for such an interesting study，because there is no shortage of tall buildings.There are plenty of high -- rise windowsills to fall from！One cat，Sabrina，fell 32 storeys，yet only suffered from a broken tooth.Cats behave like well trained paratroopers（跳傘運(yùn)動(dòng)員），a doctor said.It seems that the further cats fall，the less they are likely to injure themselves，In a long drop，they reach speeds of 60 miles an hour and more .At high speeds，falling cats have time to relax.They stretch out their legs like flying squirrels.This increases their air-resistance and reduce the shock of impact（沖擊力） when they hit the ground.

（1）We find cats endlessly interesting because

A

A

.
A.we felt there is a good deal we do not know about their lives
B.we believe that cats have nine lives
C.they are different from dogs and horses
D.they can reach a speed of 60 miles an hour while falling
（2）A recent study of 132 cats in New York proved

D

D

.
A.that it is true that cats have nine lives
B.that cats are related to flying squirrels
C.they are different from dogs and horses
D.that cat falling from great heights are seldom killed
（3）How do cats try to protect themselves when falling from great heights？

B

B

A.They cry loudly when falling from great heights.
B.They make good use of certain parts of their bodies.
C.They are helped by well-trained paratroopers.
D.They needn't protect themselves because they won't die.
（4）Cats can survive great falls mainly because

C

C

.
A.the further they fall，the less likely they are to injure themselves.
B.A cat's ability to survive is base on fact
C.A falling cat relaxes its legs and so increases its air-resistance.
D.They are unlikely to fall at a speed of more than 60 miles an hour
（5）"Cats never fail to interest human being." Means

A

A

.
A.Human beings are often interested in cats.
B.Cats seldom show any interest in human beings
C.Cats are not interesting at all
D.Human beings hardly show interest in cats