在阅读时要注意辨别这些复杂修饰成分，找出真正的主语和谓语。
很显然，这句话应该在冒号处断开，冒号后是对前半句的解释，所以在读在这句话时，我们不必把太多精力放在前半句上，而要着重理解后半句，这才是与文章内容相关的部分。整句话的复杂修饰成分包括介词短语in the best of circumstances，from larger，more established companies，以及不定式to broaden their customer bases，和现在分词arising from their current success.
再来看一个复杂修饰成分为从句的例子：Civil rights activists have long argued that one of the principal reasons why Blacks， Hispanics， and other minority groups have difficulty establishing themselves in business is that they lack access to the sizable orders and subcontracts that are generated by large companies.
