请教og12 Q23

ymbspy

23. In a previous design, the weight of the discus used in track competition is concentrated in a metal center, but now it is lined with lead around the perimeter, thereby improving stability in

flight and resulting in longer throws.

(A) In a previous design, the weight of the discus used in track competition is concentrated in a metal center, but now it is

(B) According to a previous design, the weight of the discus used in track competition was

concentrated in a metal center, but now it is

(C) Once designed with its weight concentrated in a metal center, the discus used in track

competition is now

(D) The discus used in track competition, once designed with its weight concentrated in a metal center, but now

(E) The discus used in track competition was once designed having its weight concentrated in a

metal center and now



AB中的it语法上指代weight我明白，但为什么逻辑上指代discus？能不能帮我翻译一下这个题的文章？谢谢！！

witchingwang

Once designed with its weight concentrated in a metal center, the discus used in track competition is now lined with lead around the perimeter, thereby improving stability in flight and resulting in longer throws.


曾经设计为铁饼的重量集中在金属的中心，在田径比赛中的铁饼现在把铅分布在外围，因此改进了比赛中的稳定性和导致了更远地投掷。

根据英文结构翻的，将就看吧。

ymbspy

谢谢！

拉玛西亚小屁孩

A 主语是weigh+谓语is concentrated + but(平行并列）+ it (应该指代discus:根据逻辑判断，却指代weigh)  WRONG!!!B 同A的问题一样
C correct:  once.....作时间状语， 主语discus+谓语is lined （被动语态）
D 谓语不是被动语态 discus used .....它自己怎么可能使用呢？ 错误
E and 并列后的一项没有谓语~~~


小窍门： 做题前一定先要找准 句子的主谓结构， 这样就非常容易判断了~~~~