刚做完GWD28,答案如下：
EEC*E,ECCBC,CECED,BACCE,ADCEC,*DBBD,ECA**,*BAAC,B
大家有做过的吗？交流一下吧！
我的答案(GMAT28):
1.E 2.E 3.C 4.X 5.E 6.E 7.E 8.C 9.B 10.C 11.C 12.C 13.C 14.E 15.D 16.B 17.A 18.E 19.B 20.E 21.A 22.D 23.C 24.E 25.C 26.X 27.B 28.D 29.C 30.D 31.B 32.C 33.A 34.X 35.X 36.X 37.B
38.A 39.A 40.C 41.B
后天就要考试了! 今天早上做了这套题,答案仅供参考.请讨论!
gwd 28 我的答案
eeeXe eccbc
ccead baebe
adcec Xddbd
ecaXX Xbaac
b
我不是nn，仅供大家参考拉（gmat28）
eebXe eccbc
cdeed baede
adcec Xdecd
ecaXX Xbaac
b
这是我看到过的三份答案~都是CDer们自己做的~大家可以对一对...
有疑问的可以去各个专区发贴提问~我们会逐渐做出讨论帖链接，汇总统一答案的~谢谢合作！！
经过进一步分析，现暂时更正答案如下：
EEC*E,ECCBC,CDCED,BAEDE,ADCEC,*DDCD,ECA**,*BAAC,B
根据beautyup提供的信息，28题是新东方绿皮书上的，应该选E。
所以目前的答案是：
EEC*E,ECCBC,CDCED,BAEDE,ADCEC,*DECD,ECA**,*BAAC,B
http://forum.chasedream.com/dispbbs.asp?boardid=22&id=129826&star=1#1239334
31套的讨论答案，在jj区！！
gwd28:俺的答案
EEC#D，EEDBC，CDEED，CEECA，ADCEC，#DEBD，EAC##，#BAAC，B
呵呵,找到了.
谢谢happyfish在另一个贴给的答案:
【下载＋讨论帖链接汇总】─ 机考练习资料 [
2 3 4 5 6 7 8 9....10]
3楼~
hehe,我来给个自己的答案吧。已经根据上面兄弟姐妹们的答案调整过了。红色为需要讨论和关注的，本套感觉除了逻辑有几道题需要研究一下，并不难，应该都能错在5个以内吧。
eecXe eccbc
cdced baede
adcec Xdacd
ecaXX Xbaac
b
My answers are listed below. accumulate RP
GWD 28
EECXE, ECCBC, CDCED, BAEDE, ADCEC, XDCCD, ECAXX, XBAAC, B
GWD 31
EDCBD, CEADA, BBBAA, EBBBC, BDAEE, BBEEB, EBD (only 33 qeustions)
第一题关键Do没有宾语，所以一定错。
还有第五道阅读E应该不对，不是demo鸡，改成observer鸡才对，我选A。
多谢答案,但是我的第5题是不是有问题:
如上,C和D一样,答案好象也不可能是E啊?
这里人气比较旺，来这里请教一下19题
28-19: Plankton generally thrive in areas of the ocean with sufficient concentrations of certain nitrogen compounds near the surface where plankton live. Nevertheless, some areas, though rich in these nitrogen compounds, have few plankton. These areas have particularly low concentrations of iron, and oceanographers hypothesize that this shortage of iron prevents plankton from thriving. However, an experimental release of iron compounds into one such area failed to produce a thriving plankton population, even though local iron concentrations increased immediately.
Which of the following, if true, argues most strongly against concluding, on the basis of the information above, that the oceanographers’ hypothesis is false?
A: Not all of the nitrogen compounds that are sometimes found in relatively high concentrations in the oceans are nutrients for plankton.
B: Certain areas of the ocean support an abundance of plankton despite having particularly low concentrations of iron.
C: The release of the iron compounds did not increase the supply of nitrogen compounds in the area.
D: A few days after the iron compounds were released, ocean currents displaced the iron-rich water from the surface.
E: The iron compounds released into the area occur naturally in areas of the ocean where plankton thrive.
好象不少人选d,可是我不太明白d的意思。
我选了a, 如果说实验中nitrogen 和plankton 所需要的不一样的话，即使iron量
够了，也没有办法令plankton thrive。
请指教！
gwd 28-20
28-20: In the 1820’s, anthracite coalfields opened in eastern Pennsylvania, and when canals and eventually railroads reached into the region, there were substantial supplies of coal that was exported to the nation’s growing mills, forges, factories, and railways.
A: when canals and eventually railroads reached into the region, there were substantial supplies of coal that was
B: once canals and eventually railroads reaching into the region, there were substantial supplies of coal having been
C: with canals and eventually railroads reaching into the region, there had been substantial supplies of coal
D: canals and eventually railroads reached into the region, with substantial supplies of coal being
E: as canals and eventually railroads reached into the region, substantial supplies of coal were
一开始也选了E，但仔细一看，后面那个句子的主语是supplies，从逻辑意思上supplies were exported...可以吗？请NN指正。
gwd 28-28
28-28: Which of the following most logically completes the argument?
A certain cultivated herb is one of a group of closely related plants that thrive in soil with high concentrations of metals that are toxic to most other plants. Agronomists studying the herb have discovered that it produces large amounts of histidine, an amino acid that, in test-tube solutions, renders these metals chemically inert. Possibly, therefore, the herb’s high histidine production is what allows it to grow in metal-rich soils, a hypothesis that would gain support if ______.
A: histidine is found in all parts of the plant – roots, stem, leaves, and flowers
B: the herb’s high level of histidine production is found to be associated with an unusually low level of production of other amino acids
C: others of the closely related group of plants are also found to produce histidine in large quantities
D: cultivation of the herb in soil with high concentrations of the metals will, over an extended period, make the soil suitable for plants to which the metals are toxic
E: the concentration of histidine in the growing herb declines as the plant approaches maturity
这题好像什么答案都有，除了B没人选。
我认为是D，请注意histidine...renders these metals chemically inert. 这句话的意思是氨基酸使得金属的变得惰性，我理解为使得金属的毒性不再挥发出来了。那如果种herb种一段时间，连别的怕这种金属毒性的植物都可以种了，那不正是支持了结论：the herb’s high histidine production is what allows it to grow in metal-rich soils（原因是histidine抑止了金属毒性）
GWD-28key
EEC()E,ECCBC,CDCED,BAEDE,ADCEC,()BECD,ECA()(),()BAAC,B
关于GWD-18
Which of the following most logically completes the passage?
Concerned about financial well-being of its elderly citizens, the government of Runagia decided two years ago to increase by 20 percent the government-provided pension paid to all Runagians over 65. Inflation in the intervening period has been negligible, and the increase has been duly received by all eligible Runagians. Nevertheless, many of them are no better off financially than they were before the increase, in large part because ______.
A: They rely entirely on the government pension for their income
B: Runagian banks are so inefficient that it can take up to three weeks to cash a pension check
C: They buy goods whose prices tend to rise especially fast in times of inflation
D: The pension was increased when the number of elderly Runagians below the poverty level reached an all-time high
E: In Runagia children typically supplement the income of elderly parents, but only by enough to provide them with a comfortable living
个人认为答案是D,而不是E,请NN们讨论
15楼的mm你真强！5个以内！太猛了！
我错了9个，其中有一个失误！
在这里，我要强烈的反对20题的答案！我坚决的认为选A，这样我就少错了一个！嗬嗬！
D项是明显错误！with substantial supplies of coal being用来修饰canals and eventually railroads 明显with后的不是canals and eventually railroads 所具有的性质！而且句子中心变了！
E项，supplies were exported你们觉得对吗？出口的应该是coal，而不是他的供应吧！~
B的having been时态是不对的！
C的with是没有修饰的！
只有A项虽然there be很罗嗦！但没有任何原则的错误！
there be不能一看就排除的！他只是不好的表达！但不是错误的！
望大家讨论！
还有，nnd前十个竟然错了3个！包括失误的第7题！让我十分的不爽！
菜鸟阿菜鸟，何时能变成大牛！
继续努力，吼一声！！！！！！！！！！！！！！！！！！！！！！！
I strongly recommend D for answer. Only D supports that the amino acid makes the soil's mineral inert.
28-28: Which of the following most logically completes the argument?
A certain cultivated herb is one of a group of closely related plants that thrive in soil with high concentrations of metals that are toxic to most other plants. Agronomists studying the herb have discovered that it produces large amounts of histidine, an amino acid that, in test-tube solutions, renders these metals chemically inert. Possibly, therefore, the herb’s high histidine production is what allows it to grow in metal-rich soils, a hypothesis that would gain support if ______.
A: histidine is found in all parts of the plant – roots, stem, leaves, and flowers
B: the herb’s high level of histidine production is found to be associated with an unusually low level of production of other amino acids
C: others of the closely related group of plants are also found to produce histidine in large quantities
D: cultivation of the herb in soil with high concentrations of the metals will, over an extended period, make the soil suitable for plants to which the metals are toxic
E: the concentration of histidine in the growing herb declines as the plant approaches maturity
I strongly recommend D for answer. Only D supports that the amino acid makes the soil's mineral inert.
agree
pls discuss
28-30: Unlike the body’s inflammatory response to cuts and sprains, with widespread swelling and stiffness immobilizing the injured area until it heals, the body’s response to sunburn is more localized and resulting in a distinct line dividing affected and unaffected areas of the skin.
A: with widespread swelling and stiffness immobilizing the injured area until it heals, the body’s response to sunburn is more localized and resulting
B: where the injured area is immobilized with widespread swelling and stiffness until it has healed, sunburn generates a more localized response in the body, which results instead
C: with the injured area immobilized by means of widespread swelling and stiffness until healing, sunburn generates a more localized response in the body, one resulting
D: in which widespread swelling and stiffness immobilize the injured area until it has healed, the body’s more localized response to sunburn results
E: in which widespread swelling and stiffness immobilize the injured area until healing, instead, the body’s more localized response to sunburn results
I choose E
who can explain why E is wrong and what dose "it" in D refer to
thanks
gwd 28-28
28-28: Which of the following most logically completes the argument?
A certain cultivated herb is one of a group of closely related plants that thrive in soil with high concentrations of metals that are toxic to most other plants. Agronomists studying the herb have discovered that it produces large amounts of histidine, an amino acid that, in test-tube solutions, renders these metals chemically inert. Possibly, therefore, the herb’s high histidine production is what allows it to grow in metal-rich soils, a hypothesis that would gain support if ______.
A: histidine is found in all parts of the plant – roots, stem, leaves, and flowers
B: the herb’s high level of histidine production is found to be associated with an unusually low level of production of other amino acids
C: others of the closely related group of plants are also found to produce histidine in large quantities
D: cultivation of the herb in soil with high concentrations of the metals will, over an extended period, make the soil suitable for plants to which the metals are toxic
E: the concentration of histidine in the growing herb declines as the plant approaches maturity
这题好像什么答案都有，除了B没人选。
我认为是D，请注意histidine...renders these metals chemically inert. 这句话的意思是氨基酸使得金属的变得惰性，我理解为使得金属的毒性不再挥发出来了。那如果种herb种一段时间，连别的怕这种金属毒性的植物都可以种了，那不正是支持了结论：the herb’s high histidine production is what allows it to grow in metal-rich soils（原因是histidine抑止了金属毒性）
我认为是C, 因为种植物有histidine，而这种植物和others of the closely related group of plants 可以thrive in soil with metals，如果发现其他植物也有histidine, 那就可能使这一共性让它们能thrive in soil with metals.
D不对， 说一段时间后能改变土壤，但并不能说明原因是histidine, 也许是植物的其他特性导致的。
28-29: Lofgren’s disease has been observed frequently in commercially raised cattle but very rarely in chickens. Both cattle and chickens raised for meat are often fed the type of feed that transmits the virus that causes the disease. Animals infected with the virus take more than a year to develop symptoms of Lofgren’s disease, however, and chickens commercially raised for meat, unlike cattle, are generally brought to market during their first year of life.
Which of the following is most strongly supported by the information provided?
A: The virus that causes Lofgren’s disease cannot be transmitted to human beings by chickens.
B: There is no way to determine whether a chicken is infected with the Lofgren’s disease virus before the chicken shows symptoms of the disease.
C: A failure to observe Lofgren’s disease in commercial chicken populations is not good evidence that chickens are immune to the virus that causes this disease.
D: An animal that has been infected with the virus that causes Lofgren’s disease but that has not developed symptoms cannot transmit the disease to an uninfected animal of the same species.
E: The feed that chickens and cattle are fed is probably not the only source of the virus that causes Lofgren’s disease.
答案是C,我选B. 因为的了病，只有超过一年才看出来，鸡不到一年就卖了，就是得了病，也看不出来。
而C中"immune"文中没有牵涉到，所以推不出来。
gwd 28-28
28-28: Which of the following most logically completes the argument?
A certain cultivated herb is one of a group of closely related plants that thrive in soil with high concentrations of metals that are toxic to most other plants. Agronomists studying the herb have discovered that it produces large amounts of histidine, an amino acid that, in test-tube solutions, renders these metals chemically inert. Possibly, therefore, the herb’s high histidine production is what allows it to grow in metal-rich soils, a hypothesis that would gain support if ______.
A: histidine is found in all parts of the plant – roots, stem, leaves, and flowers
B: the herb’s high level of histidine production is found to be associated with an unusually low level of production of other amino acids
C: others of the closely related group of plants are also found to produce histidine in large quantities
D: cultivation of the herb in soil with high concentrations of the metals will, over an extended period, make the soil suitable for plants to which the metals are toxic
E: the concentration of histidine in the growing herb declines as the plant approaches maturity
我认为是C, 因为种植物有histidine，而这种植物和others of the closely related group of plants 可以thrive in soil with metals，如果发现其他植物也有histidine, 那就可能使这一共性让它们能thrive in soil with metals.
D不对， 说一段时间后能改变土壤，但并不能说明原因是histidine, 也许是植物的其他特性导致的。
我同意sunnybright对 D选项的分析 ，但我认为答案是E.
因为histidine in test-tue solutions 中能和metals 发生化学反应renders these metals chemically inert.如果histidine 在真实的环境中也确实和metals发生了化学反应，那么就可以Support that the herb’s high histidine production is what allows it to grow in metal-rich soils.正如选项E the concentration of histidine in the growing herb declines as the plant approaches maturity,按理the concentration of histidine producted by the plant 如果没有和其他物质发生化学反应的话，随着时间的增长，histidine 的浓度应该会越积越多，已知histidine 能和metals发生化学反应,而现在the concentration of histidine 也降低了，因此，可以断定在现实的环境中histidine确实renders these metals chemically inert.
正确答案为:
eeexb ecdbc cdced baede adcec xdabd ecaxx xbaac b
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