prep 29[再来一个！]

29.  There are hopeful signs that we are shifting away from our heavy reliance on fossil fuels: more than ten times as much energy is generated through wind power now than it was in 1990

A) generated through wind power now than it was

B) generated through wind power now as it was

C) generated through wind power now as was the case

D) now generated through wind power as it was

E) now generated through wind power than was the case

正确答案是选C，对B的解释是it不能指代energy,否则，同一个能量就会被用两次，什么意思啊？我怎么就理解不到这个层面上来呢！！！

正确答案是选C，对B的解释是it不能指代energy,否则，同一个能量就会被用两次，什么意思啊？我怎么就理解不到这个层面上来呢！！！

多谢！今天看prep181题资料，感觉好难，大家有没有同感？感觉要窒息~

多谢！今天看prep181题资料，感觉好难，大家有没有同感？感觉要窒息~

同意楼上的，请看OG10thSC199:

199.
                Because the Earth’s crust is more solid there and thus better able to transmit shock waves, an earthquake of a given magnitude typically devastates an area 100 times greater in the eastern United States than it does in the West.

(A) of a given magnitude typically devastates an area 100 times greater in the eastern United States than it does in the West

(B) of a given magnitude will typically devastate 100 times the area if it occurs in the eastern United States instead of the West

(C) will typically devastate 100 times the area in the eastern United States than one of comparable magnitude occurring in the West

(D) in the eastern United States will typically devastate an area 100 times greater than will a quake of comparable magnitude occurring in the West（D）

(E) that occurs in the eastern United States will typically devastate 100 times more area than if it occurred with comparable magnitude in the West

At issue is the accurate expression of a complex comparison. Choice D, the best answer, presents the proper form of comparison, will typically devastate an area 100 times greater than will; thus, choice D logically indicates that earthquakes in the eastern United States are 100 times more devastating than are western earthquakes. Choices A, B, and E use it incorrectly to suggest that the same quake strikes both the eastern and the western United States.
            In choice C, 100
                times the area... than is unidiomatic.

困的睁不开眼睛，今天就到这里了，祝各位晚安～

今天发现有一道题和LS的解释有点矛盾。

27. Since 1990 the global economy has grown more than it did during the 10000 years from the beginning of agriculture to 1950.

A. Since 1990 the global economy has grown more than it did during the 10000 years from the beginning of agriculture

B. Since 1990 the growth of global economy has been more than that during 10000 years, from when agriculture began

【A: correct，it指代economy, did 指grow的过去时

B: growth has been more than growth，逻辑上不太通顺，增加一些形容词会好比如more fast; from when = since , 不简洁
            

注意：比较对象it，that用法的区别，it, they 用来指同一个抽象名词的含义但属于不同的时间等，比如economy是一个时间范围内的抽象词，可以用it或they替代；that指不同的事物，比如我的钱包和你的钱包，虽然都是钱包但属于不同所有人的事物。】

先确认的是prep 29中energy是抽象名词还是具体名词呢？如果是具体名词的话就没问题了，但如果是抽象名词就和这道题的解释相冲突了，因为it是可以指代不同时间段的相同的抽象名词。

 同问。

我也觉得energy是抽象名词啊？再说了，将C选项代回原句子并补充完整：

There are hopeful signs that we are shifting away from our heavy reliance on fossil fuels: more than ten times as much energy is generated through wind power now as （the case was generated in 1990)

显然不对啊，case 怎么被 generated??

same question as stevegt!!

Help!