LSAT-11-1-3，LSAT-11-1-16，LSAT-11-1-17

Sally: I cannot study at a university where there is an alcohol problem. So unless something is done about the alcohol problem at this university, I’ll have to transfer to a university where there are no fraternities.

Yolanda: I don’t agree that fraternities are responsible for the alcohol problem at this university. Alcohol problems exist at all universities, including those where there are no fraternities. We all should become more aware of alcohol abuse. It’s not simply a fraternity problem; it’s a cultural problem.

3.     Which one of the following is an assumption on which Sally’s argument depends?

(A) Most universities have fraternities.

(B) Nothing will be done about the alcohol problem at Sally’s university.

(C) Alcohol problems are becoming more widespread at universities.

(D) Some fraternity members who drink alcohol beverages are too young to do so legally.（E）

(E) There could be universities that have no alcohol problems.

我当时选成D用的是断桥连接思路，是否D表述不太正确，E是断桥后的第2重假设？

A favored theory to explain the extinction of dinosaurs, together with many other species, has been the globally catastrophic collision of a large asteroid with the Earth. Supporting evidence is an extraterrestrial chemical element in a layer of dust found worldwide at a geological level laid down contemporaneously with the supported event. A new competing theory contends that any asteroid impact was irrelevant, because it was massive volcanic activity that caused the extinctions by putting enough dust into the atmosphere to cool the planet. The Decean region of India contains extensive volcanic flows that occurred within the same time period as the supposed asteroid impact and the extinctions.

16.   Which one of the following, if true, most of strongly indicates that the asteroid-impact theory is at least incomplete, if not false?

(A) Large concentrations of dinosaur nests with fossil eggs found in Alberta indicate that at least some species of dinosaurs congregated in large groups during some part of their lives.

(B) Dinosaur remains indicate that some species of dinosaur could have migrated in herds over wide ranges, so that they could have traveled to escape the local effects of certain catastrophes.

(C) Legends from many cultures, such as the Greek legend that Cadmus raised an army by sowing dragons’ teeth in the ground, show that various accident peoples worldwide were familiar with the fossils of dinosaurs.

(D) In the Gobi desert in China, where now only small animals can eke out an existence, fossil dinosaur skeletons 27 feet long were found in circumstances indicating that the climate there was as dry when the dinosaurs lived as it is now.（E）

(E) The fossil record in Montano from below the layer of extraterrestrial dust shows a diminution over time in dinosaur species from 35 to 13, and dinosaur teeth found above the dust layer show a diminution in species from 13 to 5.

我当时选B绝得它支持了题目中的要求，为什么选E？看了原来的帖子还是不太明白，E体现不出incomplete

17.   A contract, whether expressed or unexpressed, exists when two parties engage with each other for the reciprocal transfer of benefits. Thus, in accepting support from public funds, an artist creates at least an unexpressed contract between himself or herself and the public, and the public can rightly expect to benefit from the artist’s work.

Which one of the following most accurately describes an error in reasoning in the passage?

(A) attempting to justify a rule of conduct on the grounds that it confers benefits on all of the parties involved

(B) concluding that a definition is fully applicable to a situation when it is known only that the situation conforms partially to that definition

(C) speaking only in a abstract terms about matters that involve contingencies and that must be judged on a case-by-case basis

(D) confusing the type of mental or emotional activity in which an individual can engage with the mental or emotional states that can characterize groups of individuals（B）

(E) treating an issue that requires resolution through political processes as if it were merely a matter of opinion

哪位朋友可以结释一下为什么选B，谢谢！！