帮我看看，谢谢

shunwen

In 1980, a Danish ten-øre coin minted in 1747 was sold at auction for $8,000. Eleanor Bixby owns another Danish ten-øre coin minted in 1747. When she puts it on the market next week, it will fetch a price over $18,000.
Which of the following, if true, would most weaken the conclusion drawn above?
(A) Since 1980, the average price for rare coins has increased by over 150 percent.
(B) There are only four coins like the one in question in the entire world.
(C) Since 1980, the consumer price index has risen by over 150 percent.
(D) In 1986, a previously unknown cache of one hundred coins just like the one in question was found.
(E) Thirty prominent, wealthy coin collectors are expected to bid for Bixby’s coin.

这题我不太明白a和d。我觉得两个都有削弱，但是就是分不清哪个比较好？

shunwen

Psychologists conducted a series of experiments to test the effect upon schoolchildren of violence in films. In the first experiment, grammar school children were shown a film that included scenes of a male teenager engaging in violent acts against others, such as punching, pushing, and kicking. During a free-play session following the film viewing, 42 percent of the children were observed to engage in one or more violent acts similar to those in the film. In a second experiment, a different group of children was shown a similar film featuring a female teenager. Only 14 percent of the children were observed behaving violently afterward. The psychologists concluded that children are more likely to imitate violent behavior on film when a male model is shown than when a female model is shown.
Which of the following, if true, would most seriously weaken the psychologists’ conclusion?
(A) In both experiments, the victims of the filmed violence included both males and females.
(B) In the second experiment, 28 percent of the children appeared upset during the viewing the violent film scenes.
(C) The first group included 19 male students and 20 female students; the second group included 20 male students and 21 female students.
(D) In the first group, 58 percent of the children appeared bored during the showing of the film, and 12 percent fell asleep.
(E) The percentage of children known to have discipline problems prior to the experiment was greater in the first group than in the second group.
这题的d和e

camelo777

第一道题目我没看出A哪里有削弱啊？你再看一下，如果还是觉得有跟我说下你的思路。

camelo777

第二题E是很明显的削弱，如果第一组的孩子中有纪律问题的本来就比第二组多的话，那么原文的结论就不成立了，这是他因削弱。
D选项有点像削弱的感觉，如果学生对电影不是很有兴趣的话那么他们看完电影后打闹就不是因为电影了。

但是D还是不对，简单的数学问题，有58%的孩子不感兴趣，有12%睡着了，我们不知道这12%睡着的孩子是不是包括在这58%不感兴趣的孩子里，如果是的话，那么不感兴趣+睡着的一共是58%，那么还剩下42%的孩子就有可能是下课后打闹的孩子，所以D是不成立的，没有起到削弱的作用。

D还有一个很严重的问题，不感兴趣不代表没有被电影影响，也许这些孩子潜意思里被影响了也说不定，所以D不严谨，不能削弱。

shunwen

第一题的那个a说coin价格上升了，不就可以说是现在的coin的价格有所贬值吗？

camelo777

你这个理解有问题，A说的是 the average price for rare coins 升了150%，那就是越来越值钱的意思，怎么会是贬值呢？如果说发现的rare coins的数量上升了150%那才是贬值

shunwen

Determining the authenticity of purported pre-Columbian artifacts is never easy. Carbon-14 dating of these artifacts is often impossible due to contamination by radioactive palladium (which occurs naturally in the soils of Central and South America). However, historians and anthropologists have evolved two reliable criteria, which, utilized in combination, have proven effective for dating these artifacts. First, because authentic pre-Columbian artifacts characteristically occur in a coarse, granular matrix that is shifted by major earthquakes, they often exhibit the unique scratch patterns known as gridding. In addition, true pre-Columbian artifacts show a darkening in surface color that is caused by centuries of exposure to the minute amounts of magnesium in the soil of the Americas.
The criteria above would be LEAST useful in judging the authenticity of which of the following?
(A) An ax head of black obsidian, unearthed from a kitchen midden
(B) A pottery bowl with a red ocher design, found in the ruins of a temple
(C) A set of gold ear weights, ornamented with jasper pendants
(D) A black feather cape from a king’s burial vault
(E) A multicolored woven sash found near the gravesite of a slave
这题到底是什么意思？都看不懂

shunwen

As long as savings deposits are insured by the government, depositors will have no incentive to evaluate the financial strength of a savings bank. Yield alone will influence their choice of bank. To attract deposits, banks will be forced to offer the highest possible interest rates. And since paying higher rates inevitably strains the financial strength of a bank, ______
(A) the government will be forced o impose limitations on interest rates
(B) deposit insurance will ultimately lead to the financial weakening of many banks
(C) savers will be forced to choose between deposit insurance and higher interest rates
(D) deposits will tend to go to the banks with the greatest financial strength
(E) bank profits will tend to rise to ever-higher levels

填空题到底要怎么来做呢？我每次做填空都很痛苦

shunwen

We commonly speak of aesthetic judgments as subjective, and in the short term they are, since critics often disagree about the value of a particular contemporary work of art. But over time, the subjective element disappears. When works of art have continued to delight audiences for centuries, as have the paintings of Michelangelo, the music of Bach, and the plays of Shakespeare, we can objectively call them great.
The statements above best support which of the following conclusions?
(A) When Michelangelo, Bach, and Shakespeare were alive, critics disagreed about the value of their work.
(B) The value of a contemporary work of art cannot be objectively measured.
(C) The reputation of a work of art often fluctuates greatly from one generation to the next.
(D) The mere fact that a work of art has endured for centuries does not establish its greatness.
(E) If critics agree about the value of a particular cotemporary work of art, then the work can objectively be called great.

camelo777

做填空题你就要顺着原文的逻辑来，一来，帮他补充所缺少的。
这道题网上有一段解释很精彩，我给你转过来了

Reasoning: saving deposits insured by the government => depositors have no incentive to evaluate the financial strength of a bank => they don’t have to make a choice among banks since every bank is OK for them



In order to attract more deposits, banks have to offer highest possible interest rates.



But paying higher rates strains the financial strength of a bank, therefore banks cannot attract more deposits as they wishes. it is clearly that this is a vicious circle for banks which want to attract more deposits. And the origin of the problem of course is the current deposit insurance by the government.

这个思路就很清晰