LSAT SET 19 SECTION III 10,18

braveMBA · 发表于 2003-9-1 06:58:00

10. Michelangelo's sixteenth-century Sistine Chapel paintings are currently being restored. A goal of the restorers is to uncover Michelangelo's original work, and so additions made to Michelangelo's paintings by later artists are being removed. However, the restorers have decided to make one exception: to leave intact additions that were painted by da Volterra.
Which one of the following, if true, most helps to reconcile the restorers' decision with the goal stated in the passage?
(A) The restorers believe that da Volterra stripped away all previous layers of paint before he painted his own additions to the Sistine Chapel.
(B) Because da Volterra used a type of pigment that is especially sensitive to light, the additions to the Sistine Chapel that ad Volterra painted have relatively muted colors.
(C) Da Volterra's additions were painted in a style that was similar to the style used by
Michelangelo.
(D) Michelangelo is famous primarily for his sculptures and only secondarily for his paintings, whereas da Volterra is known exclusively for his paintings.
(E) Da Volterra's work is considered by certain art historians to be just as valuable as the work of additions to Michelangelo's work.

Key: A.
Actually, I have no any sense of this subject, because I excluded all the choices. The passage is easy to understand, but what does A mean?

18. Because dinosaurs were reptiles, scientists once assumed that, like all reptiles alive today, dinosaurs were cold-blooded. The recent discovery of dinosaur fossils in the northern arctic however has led a number of researchers to conclude that at least some dinosaurs might have been warm-blooded. These researchers point out that only warm-blooded animals could have withstood the frigid temperatures that are characteristic of arctic winters, whereas cold-blooded animals would have frozen to death in the extreme cold.
Which one of the following if true weakens the researchers' argument?
(A) Today's reptiles are generally confined to regions of temperate or even tropical climates
(B) The fossils show the arctic dinosaurs to have been substantially smaller than other known species of dinosaurs.
(C) The arctic dinosaur fossils were found alongside fossils of plants known for their ability to withstand extremely cold temperatures.
(D) The number of fossils found together indicates herds of dinosaurs so large that they would need to migrate to find a continual food supply
(E) Experts on prehistoric climatic conditions believe that winter temperatures in the prehistoric northern arctic were not significantly different from what they are today.

KEY

.
I hardly understand why is D. Maybe D means that the cause of death of dinosaurs in northern arctic prehistoric is not the temperature, but rather the competition for foods. But this deos not weaken the conclusion at all, but seems like a unrelated choice.

merlion · 发表于 2003-9-1 08:56:00

18. researchers assume dinosaurs could withstood the frigid temperatures. D是不是可以理解成dinosaurs不适应frigid temperatures，准备集体迁走，却不幸被冻死。有点想象力太丰富了。

dandan74 · 发表于 2003-9-1 14:46:00

关于第十题，我的理解是在考怎样在 the goal that is uncover Michealangelo's original workers by stripping all the additional layers和the only exception之间找平衡。答案应该是compromise the two points. A的正确性在於因为Da Voterra在自己加addtion之前已经remove的其它的addtions, 所以即使不remove他的，you can still uncover all of Michealangelo's original works since Da Voterra's addtion will be the only addition，这也就满足了goal.同时也保留了Da Voterra的addtions. You should focus on the goal of the origal paragraph to find the best answer. I was confused before, but I think I figured it out.

dandan74 · 发表于 2003-9-1 14:56:00

关于18题，我的理解是，这里在weaken科学家的论据。The reason why the researchers thought the dinosaurs were warm-blooded is that dinosaurs cannot withstand frigid temperatures if they were cold-blooded. However, D introduced a new clue indicating that the herds of dinosaurs were large so they may migrate to a warmer area to find a good supply. That is to be say, they don't have to withstand the cold there.

braveMBA · 发表于 2003-9-1 22:27:00

Thanks for explanations.
To DanDan74, in 18, D does not give us any sense of "a /warmer/ area to find a good supply". I am wondering that D actually has no any clue of temperature. How can you get that? /warmer/?

In 10, although da Volterra stripped away all previous layers of paint before he painted his own additions to the Sistine Chapel, but how about his own paint on Sistine Chapel's original version? It should not be regarded as a layer of paint on Sistine Chapel's paint?

Could you please give me some other explanations? Thanks a lot.

dandan74 · 发表于 2003-9-2 02:20:00

For question 18, I think I shouldn't mention "warmer" there since this is just my speculation. I take it back. D may not be the perfect answer, but it is the best among all the choices. It is a typical answer to a GMAT question IMHO, that is, provide additional evidences to show other possibilitiies. In this case, only D makes sense. Dinosaurs can migrate, meaning they don't have to be in one place the whole year. This is just what I think when I made the choice.
As far as question 10 goes, as I said, yes, you are right, Da volterra's painting should not be regarded as a layer of the original painter. However, the point is the original painting can still be uncovered without stripping of his painting. Since his painting is the only additional painting left on the original one. This is just an compromise. The explanation may not make complete sense, however, it's the only one mentioning layers.... Just my 2cents.
Happy discussing.

braveMBA · 发表于 2003-9-2 02:38:00

Thanks, DanDan74. I know your meaning. I just think that LSAT CR is more strict than GMAT CR, so I want to confirm whether I make wrong sense of subjects. Thanks! Good luck.

dandan74 · 发表于 2003-9-2 02:58:00

Yeah. Hopefully, more people can join the discuss and tell me what they think. That will help. Good luck to you too.

LSAT SET 19 SECTION III 10,18

LSAT SET 19 SECTION III 10,18

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