大全332

332   His studies of ice-polished rocks in his Alpine homeland, far outside the range of present-day glaciers, led Louis Agassiz in 1837 to propose the concept of an age in which great ice sheets had existed in now currently temperate areas.

(B) in which great ice sheets existed in what are now temperate areas

(D) when great ice sheets had existed in current temperate areas

答案是B，没有问题。

D的错误在于had不可用于the age when，因为when一般表示具体的时间，而完成时不可以和具体时间连用。

我的问题是：1，the age when对吗？有人说只能用the age in which，可是为什么呢？我觉得the age when没问题啊？

2，current temperate areas可以吗？或者currently temperate areas可以吗？比what从句简洁，也表达了意思。

请NN解惑。

age我也不清楚,留着给nn吧

不过要是改成current temperate area, 那就成了真真正正的目前的温带了,但是题目想说的是当时的某个地区,该地区目前是温带

谢谢merie mm。

这个age when怎么解释？

temperate zone是温带。temperate area应该是气候温和的地区。current temperate area, current修饰temperate area，或currently temperate area，currently 修饰 temperate, 都应该有现在是而隐含以前不是的意思。我的理解到底有什么问题呢？

2，current temperate areas可以吗？或者currently temperate areas可以吗？比what从句简洁，也表达了意思。

D) when great ice sheets had existed in current temperate areas如果不用WHAT从句就会有歧义：

great ice sheets had existed 在现在的气候温和地区，错了，冰层是存在在过去的某地方，不是现在的地方

也就是说WHAT从句表达了：过去的冰层存在于过去的某地区里，这个地区在现在是气候温和的地区。

不知道说清楚了没

哦,确实应该是地区...

偶认为current修饰的是area,不知对不对...

以下是引用3765b在2004-5-30 10:36:00的发言：

2，current temperate areas可以吗？或者currently temperate areas可以吗？比what从句简洁，也表达了意思。

D) when great ice sheets had existed in current temperate areas如果不用WHAT从句就会有歧义：

great ice sheets had existed 在现在的气候温和地区，错了，冰层是存在在过去的某地方，不是现在的地方

也就是说WHAT从句表达了：过去的冰层存在于过去的某地区里，这个地区在现在是气候温和的地区。

不知道说清楚了没

我明白what从句的意思，怎么表达我的想法呢？对了，既然what are隐含了what were not，那么current temperate areas也隐含了previous not temperate areas，currently temperate areas也隐含了previously not temperate areas。

阅读文章的时候不就是要求体会出这些隐含意思吗？所以我觉得D改为

D) when great ice sheets existed in current temperate areas是可以的，即使错，也是错在when上。那么when为什么错呢？还是不明白。the ago是表示时间啊？

经查，ETS有age when的用法。

我觉得还是应该用what从句来替代名词性短语。解释同第5楼。

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CR大全 TEST-I

3.     Economies in which a high percentage of resources are invested in research and development show greater growth in the long run than do those in which resources are channeled into consumption. Japanese workers spend a higher percentage of their income investing in research and development than do American workers.

To grow as fast as Japan has in the past three decades, the United States must change the tax code in order to encourage savings and investment and discourage debt.

Which of the following, if true, tends to weaken the argument?

(A) Japanese research is more focused on consumers than is research by American firms.

(B) Class mobility, highly valued in American culture, is encouraged by a growing rather than a stagnant economy.

(C) Studies have shown that countries with high consumption rates prosper in the short run.

(D) Proposed changes to the tax code could involve strict limits on the deductability of interest, and increased allowance for research.（E）

(E) Because a decreasing percentage of the United States is under 40, an age when savings are traditionally low, the savings rate will increase without changes to the tax code.

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阅读大全：1998年11月 SEC A

Never before has there been an age when the visual image was so cheap in every sense of the word. We are surrounded and assailed by posters and advertisements, comics (a: COMIC STRIP b: COMIC BOOK c plural: the part of a newspaper devoted to comic strips) and magazine illustrations.

"D) when great ice sheets existed in current temperate areas是可以的，即使错，也是错在when上。那么when为什么错呢？还是不明白。the ago是表示时间啊？"

tianwanGG, 偶还是觉得great ice sheets existed的应该是原来的地区,不是现在的地区,改成current temperate areas,我的感觉是成了现在的了

current temperate areas 和what are 都是指现在的，但都隐含以前的反的。

类似的，阅读的时候有infer的题目，文章里可能会说current view，然后问previous view是什么。