请教一道语法题！

tiantian111

谢谢各位的回帖！！谢谢！

chriszhx

以下是引用tiantian111在2003-12-28 4:25:00的发言：
Perhaps the most significant postwar trend was the decentralization of cities throughout the united states,------- when massive highway-building programs permitted greater suburban growth.

A. and accelerated a phenomenon
B. a phenomenon that accelerated
C.accelerating a phenomenon which,
D. the acceleration of which phenomenon

选B , 做同位语说明decentralization在高速公路的修建促使郊区增长的时候加剧了.
A不对是因为trend不可能做accelerate的主语, 逻辑关系错误.

tiantian111

那请问，这个句子主谓宾分别是哪部分呀！

tiantian111

前面是同谓语后面应该是一个完整的句子吧！！可是？？？

chriszhx

perhaps the most significant postwar trend (主语)was (谓语)the decentralization of cities (宾语)throughout the united states(状语),------- when massive highway-building programs permitted greater suburban growth.(同位语)

a. and accelerated a phenomenon
b. a phenomenon that accelerated
c.accelerating a phenomenon which,
d. the acceleration of which phenomenon

不太明白楼上的意思,同位语在后面,前面是一个主谓句

tiantian111

既然，前面句子是PHENOMENON的同谓语，为什么B选项不是一个完整的句子，而是，一个定语重句！这样整个这个句子，只有一个主语了！有谓语动词吗？
谢谢！

tiantian111

这句话！就是这样的SVO, S, 没有谓语动词呀！不是一个完整的句子呀！？不明白！！

tiantian111

还有一种说法！换种说法就是(A PHEMONENON THAT )perhaps the most significant postwar trendwas the decentralization of cities throughout the united states( ACCELERATED)，when massive highway-building programs permitted greater suburban growth.楼上的朋友是这个意思吗？

chriszhx

楼上没看清楚嘛?我已经把原句的主谓宾画出来了,a phemonenon 是前句的同位语,
楼上把同位语的位置弄错了,请仔细读清楚我的解释

tiantian111

谢谢！！高手！！