ＧＷＤ　第１３套　错了２０个，

In the years following an eight-cent increase in the federal tax on a pack of cigarettes, sales of cigarettes fell ten percent. In contrast, in the year prior to the tax increase, sales had fallen one percent. The volume of cigarette sales is therefore strongly related to the after-tax price of a pack of cigarettes.

The argument above requires which of the following assumptions?

A.
During the year following the tax increase, the pretax price of a pack of cigarettes did not increase by as much as it had during the year prior to the tax increase.

B.
The one percent fall in cigarette sales in the year prior to tax increases was due to a smaller tax increase.

C.
The pretax price of a pack of cigarettes gradually decreased throughout the year before and the year after the tax increase.

D.
For the year following the tax increase, the pretax price of a pack of cigarettes was not eight or more cents lower than it had been the previous year.

E.
As the after-tax price of a pack of cigarettes rises, the pretax price also rises

一个税前价格和一个税后价格把我彻底搞晕了　．

答案是Ｅ

In response to viral infection, the immune systems of mice typically produce antibodies that destroy the virus by binding to proteins on its surface.
Mice infected with a herpesvirus generally develop keratitis, a degenerative disease affecting part of the eye.
Since proteins on the surface of cells in this part of the eye closely resemble those on the herpesvirus surface, scientists hypothesize that these cases of keratitis are caused by antibodies to herpesvirus.

Which of the following, if true, gives the greatest additional support to the scientists’ hypothesis?

A.
Other types of virus have surface proteins that closely resemble proteins found in various organs of mice.

B.
There are mice that are unable to form antibodies in response to herpes infections, and these mice contract herpes at roughly the same rate as other mice.

C.
Mice that are infected with a herpesvirus but do not develop keratitis produce as many antibodies as infected mice that do develop keratitis.

D.
There are mice that are unable to form antibodies in response to herpes infections, and these mice survive these infections without ever developing keratitis.

E.
Mice that have never been infected with a herpesvirus can sometimes develop keratitis.

提干没读懂，　　麻烦哪位高手翻译一下．　答案是Ｄ

Lyme disease is caused by a bacterium transmitted to humans by deer ticks. Generally deer ticks pick up the bacterium while in the larval stage from feeding on infected white-footed mice. However, certain other species on which the larvae feed do not harbor the bacterium. Therefore, if the population of these other species were increased, the number of ticks acquiring the bacterium and hence the number of people contracting Lyme disease would likely decline.

Which of the following, if true, most strengthens the argument?

A.
Ticks do not suffer any adverse consequences from carrying the bacterium that causes Lyme disease in humans.

B.
There are no known cases of a human’s contracting Lyme disease through contact with white-footed mice.

C.
A deer tick feeds only once while in the larval stage.

D.
A single host animal can be the source of bacterium for many tick larvae.

E.
None of the other species on which deer tick larvae feed harbor other bacteria that ticks transmit to humans

也是提干没读懂什么叫其他物种增加的话，　那就获得Ｂ的机会比较少，　然后人类的ＢＩＮＧ　的机会就少呢，其他增加，　幼崽不吃怎么办？

答案是Ｃ

Which of the following, if true, most logically completes the passage?

A recent poll found that over 80 percent of the residents of Nalmed Province favored a massive expansion of the commuter rail system as a means of significantly easing congestion on the province’s highways and were willing to help pay for the expansion through an increase in their taxes. Nevertheless, the poll results indicate that expansion of the rail system, if successfully completed, would be unlikely to achieve its goal of easing congestion, because
.

A.
most of people in favor of expanding the rail system reported less congestion during their highway commute as the primary benefit they would experience.

B.
of the less than 20 percent of residents not counted as favoring the expansion, about half claimed to have no opinion one way or the other.

C.
the twice-daily periods of peak congestion caused by people commuting in cars have grown from about an hour each to almost two and a half hours each in the past 20 years.

D.
expanding the commuter rail system will require the construction of dozens of miles of new railroads.

E.
the proposed expansion to the commuter rail system will make it possible for some people who both live and work at suburban locations to commute by rail.

答案是Ａ

我是5.24考 所以想和你交流下 我是西安研一学生 我的QQ276075237。做GWD语文部分感觉很难啊！

你看得怎么样了.   我感觉不大好,   QQ 我不大上的

没人回答我 ,  自己先顶一下.

第一题，俺看了半天觉得D比E像答案啊，个人观点
第二题，受到病毒感染后，老鼠的免疫系统会生成抗体bind to病毒表面的蛋白质来摧毁病毒。感染H的老鼠普遍生成了K，K是感染部分眼球的一种变性疾病。由于这部分眼球细胞表面的蛋白质跟H病毒表面的蛋白质很像，科学家假设说K疾病是由H的抗体而引发的。D的意思是，一些感染了H的老鼠没办法生成抗体，这些老鼠survive without K。

total44不用急，很可能答案是错的。
我手里的那道第一题答案就是D。和左岸的看法一致。E是不着边际的。

第三题
Lyme disease is caused by a bacterium transmitted to humans by deer ticks. Generally deer ticks pick up the bacterium while in the larval stage from feeding on infected white-footed mice. However, certain other species on which the larvae feed do not harbor the bacterium. Therefore, if the population of these other species were increased, the number of ticks acquiring the bacterium and hence the number of people contracting Lyme disease would likely decline.
L病是通过LT虫传染给人类的一种细菌引起的。大多数情况下LT虫是在幼虫阶段在被感染的白脚老鼠身上觅食时携带上这种病菌的。然而，其他种类的LT虫在幼虫阶段的觅食的宿主不携带这种病菌。因此，如果其他种类的LT虫增加了，携带特定病菌的LT虫数量就会减少，进一步的感染L病的人数量就会减少。

C DT虫只在幼虫时期觅食一次。
就是说它除了觅食时的宿主之外没有别的接触那种细菌的机会。排除了不再白脚老鼠身上吃东西的别的LT虫在别的地方吃东西携带病菌的可能。因此是加强。
这题我是排除出来的，虽然C略有牵强，但是其他四个更离谱。
……这道题终于说完了，GMAC以后希望能够出些不这么恶心的题目，选项恶心，题目内容更恶心。
A recent poll found that over 80 percent of the residents of Nalmed Province favored a massive expansion of the commuter rail system as a means of significantly easing congestion on the province’s highways and were willing to help pay for the expansion through an increase in their taxes. Nevertheless, the poll results indicate that expansion of the rail system, if successfully completed, would be unlikely to achieve its goal of easing congestion, because
.A.
most of people in favor of expanding the rail system reported less congestion during their highway commute as the primary benefit they would experience.
B.
of the less than 20 percent of residents not counted as favoring the expansion, about half claimed to have no opinion one way or the other.
C.
the twice-daily periods of peak congestion caused by people commuting in cars have grown from about an hour each to almost two and a half hours each in the past 20 years.
D.
expanding the commuter rail system will require the construction of dozens of miles of new railroads.
E.
the proposed expansion to the commuter rail system will make it possible for some people who both live and work at suburban locations to commute by rail.
第四道题结尾说调查本身表明达不到既定目标，因此答案要与调查问卷相关。CDE无关，B说的不能说明任何问题。

谢谢大家