我们先来看之前的一个例子：

　　The bouquet of flowers WAS a giving of love.

　　很明显，这里的The bouquet of 和a giving of love 在结构上平行但实际上并不平行，虽然giving 在这里是作为句词使用。而作为这种动名词来说，可以被当作名词来使用，但是词性不纯。我们可以把动名词分为两类来讨论：

　　1.简单的动名词：Tracking

　　satellites accurately is important for the space agency.

　　上面的例子中Tracking satellites accurately 可以被something 替换，这种动名词际上是将动词放在中间，而整体作为一个名词。

　　2. 复合动名词：The

　　accurate tracking of satellites is important for the space agency.

　　这种形式下，动名词被完全包含在名词词组中，通常前面有冦词或形容词，或者of 的结构中，如：the running of marathons ，marathon running 。

　　对于这两种动句词来说，无法相互平行，而且只有复合动名词才能与名词相平行。

　　Wrong: The rebels demanded the withdrawal of government forces from disputed regions, significant reductions in overall troop levels, raising the rebel flag on holidays, AND a general pardon.

　　Withdrawal, reductions, 和 pardon 都是名词，所以这里不能使用raising ，而且这样使用容易让我误解为是一种修饰。

　　Right: The rebels demanded the withdrawal of government forces from disputed regions, significant reductions in overall troop levels, THE raising OF the rebel flag on holidays, AND a general pardon.

　　当然如果存在这种名词我们还是要选择单纯的名词而不是动名词：

　　◆ Wrong: The rebels demanded the withdrawal of government forces from disputed regions AND releasing certain political prisoners.

　　◆ Wrong: The rebels demanded the withdrawal of government forces from disputed regions AND THE releasing OF certain political prisoners.

　　◆ Right: The rebels demanded the withdrawal of government forces from disputed regions AND THE RELEASE OF certain political prisoners.