885-最新真题8-5

nina23

5.    For protection from the summer sun, the Mojave lived in open-sided, flat-topped dwellings known as shades, each a roof of poles and arrowweed supported by posts set in a rectangle.
(A) each a roof of poles and arrowweed
(B) each a roof of poles and arrowweed that are being
(C) with each being a roof of poles and arrowweed
(D) with roofs of poles and arrowweed to be  
(E) with roofs of poles and arrowweed that are

the answer of this question seems odd-A
I cannot understand it and think D is better? could you tell me how to choose the correct one??

江南天阔

以下是引用nina23在2003-10-8 1:07:00的发言：
5. For protection from the summer sun, the Mojave lived in open-sided, flat-topped dwellings known as shades, each a roof of poles and arrowweed supported by posts set in a rectangle.
(A) each a roof of poles and arrowweed
(B) each a roof of poles and arrowweed that are being
(C) with each being a roof of poles and arrowweed
(D) with roofs of poles and arrowweed to be  
(E) with roofs of poles and arrowweed that are

the answer of this question seems odd-A
I cannot understand it and think D is better? could you tell me how to choose the correct one??

这里用A的意思是：
shades 只不过是用柱子和。。。撑起来的roof而已。
做同位解释。
D肯定不对，TO BE 表示将来动作。

nina23

I never saw a structure like" a roof of poles and arrowweed",Is it a idiom or a kind of express?

tocean0222

each....在这里主要是做独立主格，是习惯用法，比如还有all也能这样用，b明显累赘，所以选a；

nina23

can you give me some other examples? I still have some difficult to understand it.