GWD24-1

huangz

Tom Bradley was mayor of Los Angeles from 1973 to 1993, an era when the city had transformed from a collection of suburban neighborhoods to the second-largest city in the United States.

(A)  an era when the city had transformed

(B)  an era during which the city was transformed

(C)  an era that transformed it

(D)  during which era the city transformed

(E)  during which the city was transformed

A 为什么错？

B的被动语态应该由什么引起呢？

likui

from －－to－－用一般过去时吧；

人民，只有人民才是历史的创造者。

LES

同意逵逵。

老鼠九条命

what's the difference between B and E?

jianghl

我觉得是E中的which指代不明,而B中which指代是era, during 做介词修饰which.

chasemba

觉的虽然B也不是很好an era 和during which有些罗嗦。但是和E比起来（whice指代有问题）。B要好些

aiaidi

以下是引用huangz在2004-10-25 7:12:00的发言：

Tom Bradley was mayor of Los Angeles from 1973 to 1993, an era when the city had transformed from a collection of suburban neighborhoods to the second-largest city in the United States.

(A)  an era when the city had transformed

(B)  an era during which the city was transformed

(C)  an era that transformed it

(D)  during which era the city transformed

(E)  during which the city was transformed

A 为什么错？

B的被动语态应该由什么引起呢？

A 为什么错？

——city被transform要比transform好些，特别是这里强调的是市长的事情，不是CITY自身

——下次再看见from 1973 to 1993，一定要优先选一般过去时，而不是完成时

fbfamous

一段时期能用when代替么？

我觉得B特别好：an era是必须拿出来指代前面的from to时间段的during which再用来修饰这个词才可以

zhiyuanw

look at OG SC 2 as an example:

2. Since 1981, when the farm depression began, the number of acres overseen by professional

farm-management companies have grown from 48 million to nearly 59 million, an area that is about

Colorado's size.

(A) have grown from 48 million to nearly 59 million, an area that is about Colorado's size

(B) have grown from 48 million to nearly 59 million, about the size of Colorado

(C) has grown from 48 million to nearly 59 million, an area about the size of Colorado

(D) has grown from 48 million up to nearly 59 million, an area about the size of Colorado's (C)

(E) has grown from 48 million up to nearly 59 million, about Colorado's size

Answer to Question 2

In choice C, the best answer, an area about the size of Colorado clearly describes a rough equivalence between the area of Colorado and the area overseen by the companies.

Here an era describes the period from 1973 to 1993.  

So B is best answer.  

rings

每道题都能在OG中找到原型啊!!