月光宝盒

197. (GWD-1-Q16)

Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than it was in any previous election.

A.
a greater proportion than it was

[url=]B.
a[/url][alan1] greater proportion than

C.
a greater proportion than they have been

D.
which is greater than was so
(B)

E.
which is greater than it has been

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[alan1]a greater proportion than (that was) in any previous election

月光宝盒

看下面两个是如何互换的

According to surveys by the National Institute on Drug Abuse, about 20 percent of young adults used cocaine in 1979, [url=]twice the number reported in the 1977 survey.[/url][alan1]

A decade after initiating the nation's most comprehensive and aggressive antismoking program,California has seen per capita consumption of cigarettes decline from over 125 packs annually to about 60, [url=]a drop more than twice as great as that in the nation as a whole[/url][alan2]

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[alan1]=a number twice as great as that reported in 1977

[alan2]=more than twice the drop in the nation as a whole

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GWD7-Q13:

Like the grassy fields and old pastures that the upland sandpiper needs for feeding and nesting when it returns in May after wintering in the Argentine Pampas, the sandpipers vanishing in the northeastern United States is a result of residential and industrial development and of changes in farming practices.

A.
the [url=]sandpipers vanishing[/url][alan1] in the northeastern United States is a result of residential and industrial development and of changes in

[url=]B.
the bird itself [/url][alan2] is vanishing in the northeastern United States as a result of residential and industrial development and of changes in

C.
that the birds themselves are vanishing in the northeastern United States is due to residential and industrial development and changes to

D.
in the northeastern United States, sandpipers’ vanishing is due to residential and industrial development and to changes in

E.
in the northeastern United States, the sandpipers’ vanishing, a result of residential and industrial development and changing

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[alan1]因该是sandpiper’s vanishing is a result of…

[alan2]具有迷惑性，bird和grassy fields and pasture都是vanishing的事物，所以具有可比性

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[url=]GWD7-Q26:[/url][alan1]   X will happen if Y happens

The Organization of Petroleum Exporting Countries (OPEC) had long been expected to announce a reduction in output to bolster sagging oil prices, but officials of the organization just recently announced that the group will pare daily production by 1.5 million barrels by the beginning of next year, but only if non-OPEC nations, including Norway, Mexico, and Russia, were to trim output by a total of 500,000 barrels a day.

A.
year, but only if non-OPEC nations, including Norway, Mexico, and Russia, were to trim output

B.
year, but only if the output of non-OPEC nations, which includes Norway, Mexico, and Russia, is trimmed

C.
year only if the [url=]output of non-OPEC nations, including[/url]Norway, Mexico, and Russia[alan2] , would be trimmed

D.
year only if non-OPEC nations, which includes Norway, Mexico, and Russia, were trimming output

E.
year only if non-OPEC nations, including Norway, Mexico, and Russia, trim output

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[alan1]！！！时态问题：X will happen if Y happens

，but only if…
错误

主动语态

[alan2]Output including Norway,Mexico…

有歧义
oa:e

月光宝盒

GWD-4-17

[url=]Although[/url][alan1] the restaurant company has recently added many new restaurants across the country and its sales have increased dramatically, its sales at restaurants open for more than a year have declined.

A.
the restaurant company has recently added many new restaurants across the country and its sales have increased dramatically, its

B.
the restaurant company has recently added many new restaurants across the country and its sales increased dramatically, its

C.
many new restaurants have recently been opened across the country [url=]and[/url][alan2] its sales increased dramatically, the restaurant company’s

D.
having recently added many new restaurants across the country and with its sales increasing dramatically, the restaurant company’s

[url=]E.
recently adding many new restaurants across the country and having its sales increase dramatically, the restaurant company’s[/url][alan3]

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[alan1]Although 单独掉在前面，别看漏了。答案是A

[alan2]被动语态注意是否体现动作的发出者

[alan3]Altough 后面应该接完整句子，its无指代

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GWD6-Q8:

Many financial experts believe that policy makers at the Federal Reserve, now viewing the economy as balanced between moderate growth and low inflation, are almost certain to leave interest rates unchanged for the foreseeable future.

A.
Reserve, now viewing the economy as balanced between moderate growth and low inflation, are

B.
Reserve, now viewing the economy to be balanced between that of moderate growth and low inflation and are

C.
Reserve [url=]who, now viewing the economy as balanced between moderate growth and low inflation[/url][alan1] , are

D.
Reserve, who now [url=]view the economy to be[/url][alan2] balanced between that of moderate growth and low inflation, will be

E.
Reserve, which now views the economy to be balanced between moderate growth and low inflation, is

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[alan1]这个结构注意下，who后面应该有谓语动词

oa:a

[alan2]View X to be Y 错误。原句are almost certain（已经certain about future plan了）而不是will be certain

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GWD6-Q17:
现在完成时错误

Concerns about public health led to the construction between 1876 and 1904 of three separate sewer systems to serve metropolitan Boston.

A.
Concerns about public health led to the construction between 1876 and 1904 of three separate sewer systems to serve

B.
Concerns about public health have led to the construction of three separate sewer systems [url=]between 1876 and 1904[/url][alan1] to serve

C.
Concerns about public health have led between 1876 and 1904 to the construction of three separate sewer systems for serving

D.
There were concerns about public health leading to the construction between 1876 and 1904 of three separate sewer systems serving

E.
There were concerns leading between 1876 and 1904 to the construction of three separate sewer systems for serving

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[alan1]Between 1876 and 1904 这个指的是修筑的时间段，应该紧靠construction，而不是sewer systems. 现在完成时错误(没有明显标志)
oa：a

月光宝盒

GWD6-Q31:
that 引导从句作主语，namely

The fact of some fraternal twins resembling each other greatly and others looking quite dissimilar highlights an interesting and often overlooked feature of fraternal-twin pairs, namely they vary considerably on a spectrum of genetic relatedness.

A.
The fact of some fraternal twins resembling each other greatly and others looking quite dissimilar highlights an interesting and often overlooked feature of fraternal-twin pairs, namely they vary considerably

B.
That some fraternal twins resemble each other greatly while others look quite dissimilar highlights an interesting and often overlooked feature of fraternal-twin pairs, [url=]namely that they vary considerably[/url][alan1]

C.
With some fraternal twins resembling each other greatly and others looking quite dissimilar, it highlights an interesting and often overlooked feature of fraternal-twin pairs, namely considerable variation

D.
With some fraternal twins resembling each other greatly and others looking quite dissimilar, it is a fact that highlights an interesting and often overlooked feature of fraternal-twin pairs, namely a considerable variation

E.
Because some fraternal twins resemble each other greatly and others look quite dissimilar, this fact highlights an interesting and often overlooked feature of fraternal-twin pairs, namely they vary considerably

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[alan1]修饰feature,注意句中的while

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再看一个namely的例子

Yet Walzer’s argument, however deficient, does point to one of the most serious weaknesses of capitalism—namely, that it brings to predominant positions in a society people

163. (33705-!-item-!-188;#058&007028)

[OG原题：OG10-258]过去完成进行时

The British sociologist and activist Barbara Wootton once noted as a humorous example of income maldistribution that the elephant that gave rides to children at the Whipsnade Zoo was earning annually exactly what she then earned as director of adult education for London.

(A) that the elephant that gave rides to children at the Whipsnade Zoo was earning

(B) that the elephant, [url=]giving rides to children at the Whipsnade Zoo[/url][alan1] , had been earning

(C) that there was an elephant giving rides to children at the Whipsnade Zoo, and it earned

(D) the elephant that gave rides to children at the Whipsnade Zoo and was earning

(E) the elephant giving rides to children at the Whipsnade Zoo and that it earned

In B, the structure of noted... that the elephant, giving rides ..., had been earning falsely implies that

the reader already knows about the elephant--that is, that the existence of this particular elephant is

not new information. Also, the past perfect had been improperly places the elephant's earning in the

past, prior to Wootton's; consistent verb tense is needed to show that the actions are simultaneous.

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[alan1]这里不改用nonessential modifier,因该将逗号去除掉成为essential modifier

月光宝盒

107. (30053-!-item-!-188;#058&004625)
时态问题，典型错误 大量的插入语

Galileo did not invent the telescope, but on hearing, in 1609, that such an optical instrument had

been made, he quickly built his own device from an organ pipe and spectacle lenses.

(A) Galileo did not invent the telescope, but on hearing, in 1609, that such an optical instrument had

been made, he

[url=](B)[/url][alan1] Galileo had not invented the telescope, but when he heard, in 1609, of such an optical

instrument having been made,

[url=](C)[/url][alan2] Galileo, even though he had not invented the telescope, on hearing, in 1609, that such an

optical instrument had been made, he

(D) Even though Galileo did not invent the telescope, on hearing, in 1609, that such an optical

instrument had been made,

[url=](E) [/url][alan3] Even though Galileo did not invent the telescope, but when he heard, in 1609, of such an optical

instrument being made, he

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[alan1]时态问题，典型错误，heard of such an optical instrument having been made----awkward

[alan2]两个主语，even though 后面的he和Galileo冲突了。C选项使用大量的插入语，使Galieo与其主句的主谓he built隔开，考生容易忽视这里有两个重复

的主语。这也是GMAT设置错误选项陷阱的一种常用手法。

[alan3]Even though..but..典型错误