prep2-12，prep2-45（比较while用法）

12.   (25105-!-item-!-188;#058&002139)

Performing a risky maneuver that required precision flying, not only did space shuttle astronauts retrieve an orbiting satellite, it was done simultaneously while avoiding being rear-ended by a passing ultraviolet telescope.

(A) not only did space shuttle astronauts retrieve an orbiting satellite, it was done simultaneously while avoiding

(B) not only was an orbiting satellite retrieved by space shuttle astronauts, but they also simultaneously avoided

(C) an orbiting satellite was retrieved by space shuttle astronauts who also avoided simultaneously

(D) space shuttle astronauts retrieved an orbiting satellite, simultaneously while avoiding

(E) space shuttle astronauts retrieved an orbiting satellite and simultaneously avoided

答案是E

A recent poll indicates that many people in the United States hold a combination of conservative and liberal political views; i.e., they denounce big government, saying government is doing too much and has become too powerful, while at the same time supporting many specific government programs for health care, education, and the environment.

(A) they denounce big government, saying government is doing too much and has become too powerful, while at the same time supporting

(B) they denounce big government--they say that government is doing too much and has become too powerful--but supporting at the same time

(C) they denounce big government, they say that government is doing too much and it has become too powerful, while they support at the same time

(D) while they denounce big government, saying that government is doing too much and has become too powerful, at the same time supporting

(E) while they are denouncing big government--they say that government is doing too much and it has become too powerful-- supporting at the same time

答案是A

12题prep上关于D的错误解释是while与simultaneously语义重复

但是45题while与at the same time却不存在语义重复的问题

难道是因为45题的五个选项中都有at the same time，所以可忽略？

困惑中！请指教！

第一题不仅仅是redanduncy的问题。simultaneously副词的位置也不对。

第一题中not only...but also是递进的关系 然而while是转折 不对

第二题中是while转折