在GMAT句子改错题中，我们经常能看到选项中有主动语态和被动语态，那主被动语态，那种语态使用会更好一些呢?
看以下两个句子：▼
Jenny writes the book.
The book is written by Jenny.
上面这两句话表达的意思是一样的，哪一种方式更加直观呢?
答案是 主动语态。
我们需要知道的是，GMAT是商科思维考试，这是需要你们以后把知识运用于商业之中，假设自己是一个企业的leader，说话必须要简洁扼要无歧义，这点和GMAT考试是息息相关的。我们不需要把一个句子复杂化，应该尽量简单化。
因此我们得出结论：主动语态优于被动语态!
但是，这是有前提条件的。使用主动语态必须满足以下2个条件：
(1)动作发出者明确;
(2)语义合理。
若有一个条件不满足，则只能用被动语态。
Eg:
The book edited by Amy is popular.(被动)
不能改成： Amy who edited the book is popular.(主动)
第一句话的句子重心是the book is popular, 改成主动语态之后句子重心是Amy is popular. 语义是完全不一样的。
【实战演练】
▼
In Japan, a government advisory committee called for the breakup of Nippon Telephone and Telegraph Company, the largest telephone company in the world, so it would be two local phone companies and one long-distance provider.
A In Japan, a government advisory committee called for the breakup of Nippon Telephone and Telegraph Company, the largest telephone company in the world, so it would be
B The breakup of the world's largest telephone company, Nippon Telephone and Telegraph Company, was called for by a government advisory committee in Japan, so it would be
C A government advisory committee in Japan called for the breakup of Nippon Telephone and Telegraph Company, the world's largest telephone company, into
D The breakup of Nippon Telephone and Telegraph Company, the world's largest telephone company, was called for by a government advisory committee in Japan, so it would be
E Called for by a government advisory committee, the breakup of Nippon Telephone and Telegraph Company in Japan, the world's largest telephone company, was to be into
解析：原句中committee called for the breakup是主动语态，并且语义合理;BD选项改成被动语态，排除;E选项called for是修饰成分，改变句子结构，排除;A选项中it指代不清，答案C.
【触类旁通】
▼
The Olympic Games helped to keep peace among the pugnacious states of the Greek world in that a sacred truce was proclaimed during the festival’s month.
A world in that a sacred truce was proclaimed during the festival’s month
B world, proclaiming a sacred truce during the festival’s month
C world when they proclaimed a sacred truce for the festival month
D world, for a sacred truce was proclaimed during the month of the festival
E world by proclamation of a sacred truce that was for the month of the festival
解析：在原句中，a sacred truce was proclaimed是被动语态，并且没有给出动作发出者，因此在其他选项中均不能用主动语态;B选项proclaiming是现在分词表示主动，排除;C选项they proclaimed中they无指代对象，原句没有给出;D选项是被动语态;E选项by proclamation表方式，错误;A选项中
’s错误;答案D.
【举一反三】
▼
In 1945, after a career as First Lady in which she shattered expectations more audaciously than either Abigail Adams or Dolly Madison ever had been, Eleanor Roosevelt was appointed a delegate to the United Nations General Assembly by President Harry S Truman.
窗体顶端
A more audaciously than either Abigail Adams or Dolly Madison ever had been, Eleanor Roosevelt was appointed a delegate to the United Nations General Assembly by President Harry S Truman
B more audaciously than either Abigail Adams or Dolly Madison, President Harry S Truman had Eleanor Roosevelt appointed to be a delegate to the United Nations General Assembly
C with an audacity never matched in the case of Abigail Adams or Dolly Madison, President Harry S Truman had Eleanor Roosevelt appointed as a delegate to the United Nations General Assembly
D with an audacity never matched by Abigail Adams or Dolly Madison, Eleanor Roosevelt was appointed a delegate to the United Nations General Assembly by President Harry S Truman
E with an audacity never matched either in the case of Abigail Adams or of Dolly Madison's, Eleanor Roosevelt was appointed to be a delegate to the United Nations General Assembly by President Harry S Truman
窗体底端
解析：原句中Eleanor Roosevelt was appointed...by President Harry S Truman用的被动语态，若改成主动语态语义不合理，因为句首as first lady修饰Eleanor Roosevelt，可排除用主动语态的BC选项。
当然，以上方法需要同学们灵活的运用到平时的练习中去，只有真正的掌握了相关题型，才能够说真正的拿下了!