一下子转不过弯求解释

zowenny

M: It is almost impossible to find a person between the ages of 85 an 90 who primarily uses the left hand.

Q: Seventy to ninety years ago, however, children were punished for using their left hands to eat or to write and were forced to use their right hands.

Q’s response serves to counter any use by M of the evidence about 85 to 90 year olds in supports of which one of the following hypotheses?   D  A

(A) Being born right-handed confers a survival advantage.

(B) Societal attitudes toward handedness differ at different times.

(C) Forcing a person to switch from a preferred hand is harmless.

(D) Handedness is a product of both genetic predisposition and social pressures

(E) Physical habits learned in school often persist in old age.

解释下

还有一道

18.   Mary, a veterinary student, has been assigned an experiment in mammalian physiology that would require her to take a healthy, anesthetized dog and subject it to a drastic blood loss in order to observe the physiological consequences of shock. The dog would neither regain consciousness nor survive the experiment. Mary decides not to do this assignment.    E   B

Mary’s decision most closely accords with which one of the following principles?

(A) All other things being equal, gratuitously causing any animal to suffer pain is unjustified.

(B) Taking the life of an animal is not justifiable unless doing so would immediately assist in saving several animal lives or in protecting the health of a person.

(C) The only sufficient justification for experimenting on animals is that future animal suffering is thereby prevented.

(D) Practicing veterinarians have a professional obligation to strive to prevent the unnecessary death of an animal except in cases of severely ill or injured animals whose prospects for recovery are dim.

(E) No one is ever justified in acting with the sole intention of causing the death of a living thing, be it animal or human.

E为什么不对

仙蒂瑞拉

(E) No one is ever justified in acting with the sole intention of causing the death of a living thing, be it animal or human.
其中的sole intention 原文未提，超出原文范围，所以错～

zowenny

in order to observe the physiological consequences of shock.  这不是他的唯一目的吗?

zowenny

谁来解释下

zowenny

再顶

biantaishabi

M说85到90岁的人里面几乎找不到左撇子。（唯一能推出的是用右手的活得长， 左撇子都活不到那么老， 因为有85-90岁，是survival advantage）
Q说这仅仅是因为七十到九十年前的教育让那一代人很少有左撇子而已。
其他的选项都推不出来，所以选A。

第二个里面的e是说指以致人或动物死亡为唯一动机的行为， 文中没有提到。

prayer

in order to observe the physiological consequences of shock.  这不是他的唯一目的吗?

-- by 会员 zowenny (2009/12/20 9:20:42)

如果你这样理解那就没办法了，这句的目的是为了observe。

E的目的是为了cause ×× die