请教LSAT-11-I-22,23

joywzy

Questions 22-23

No one knows what purposes, if any, dreams serve, although there are a number of hypotheses. According to one hypothesis, dreams are produced when the brain is erasing "parasitic connections" ( meaningless, accidental associations between ideas), which accumulate during the day and which would otherwise clog up our memories. Interestingly, the only mammal that does not have rapid eye movement sleep, in which we humans typically have our most vivid dreams, is the spiny anteater, which has been seen as anomalous in that in it has a very large brain relative to the animal’s size. This fact provides some confirmation for the parasitic-connection hypothesis, since the hypothesis predicts that for an animal that did not dream to have an effective memory that animal would need extra memory space for the parasitic connections.

22. The parasitic-connection hypothesis, if true, most strongly supports which one of the following?

(A) The animals with the smallest brains spend the most time sleeping.

(B) Immediately after a person awakens from normal sleep, her or his memory contains virtually no accidental associations between ideas.

(C) When a mammal that would normally dream is prevented from dreaming, the functioning of its memory will be impaired.

(D) Insofar as a person’s description of a dream involves meaningful associations between ideas, it is an inaccurate description.

(E) All animals other than the spiny anteater dream

答案：D

23. The reasoning in the argument most closely conforms to which one of the following principles?

(A) Facts about one species of animal can provide confirmation for hypothesis about all species that are similar in all relevant respects to the particular species in question.

(B) A hypothesis from which several predictions can be drawn as logical conclusions is confirmed only when the majority of these predictions turn out to be true

(C) A hypothesis about the purpose of an action or object is confirmed when it is shown that the hypothesized purpose is achieved with the help of the action or object and could not be achieved without that action or object.

(D) A hypothesis is partially confirmed whenever a prediction derived from that hypothesis provides an explanation for an otherwise unexplained set of facts.

(E) When several competing hypotheses exist, one of them is confirmed only when it makes a correct prediction that its rivals fail to make.


答案：D

这两题题干我没读懂，读了N遍了，能不能讲讲，谢谢。

joywzy

up

siebel

观点解释型
No one knows what purposes, if any, dreams serve, although there are a number of hypotheses. 废话，可不看

According to one hypothesis, dreams are produced when the brain is erasing "parasitic connections" ( meaningless, accidental associations between ideas), which accumulate during the day and which would otherwise clog up our memories.
观点：梦用来收集垃圾，否则占内存

Interestingly, the only mammal that does not have rapid eye movement sleep, in which we humans typically have our most vivid dreams, is the spiny anteater, which has been seen as anomalous in that in it has a very large brain relative to the animal’s size.
现象：有个冬冬叫sa不寻常，睡觉时眼睛不动（暗示不作梦），其大脑相对体型而言比例特大。

This fact provides some confirmation for the parasitic-connection hypothesis, since the hypothesis predicts that for an animal that did not dream to have an effective memory that animal would need extra memory space for the parasitic connections.
解释：证明了前文观点。因为原观点预测：没有梦的动物（是可怜的。编者注）必须有个特别大的内存（即大脑）来存放垃圾（有梦的动物通过梦把垃圾收集了）。

提出观点，展示论据，总结。正评价。

题目，就不用说了吧。

joywzy

谢谢SIEBEL，明白了。