下面是2014年6月英語六級閱讀真題長難句解析(25)，請考生仔細分析句子結構。
　　1. That shift, in turn, place an unprecedented premium on “knowledge workers,” a new class of wealthy, educated, and mobile people who view themselves as free agents in a seller’s market. (2005. 閱讀. 12. Text 4)
　　【譯文】反過來，這種變化給“知識性勞動力”帶來了前所未有的福利，這個受過高等教育的新興富裕階層將自己看作是賣方市場的自由代理人。
　　【析句】復合句。主句是That shift place an unprecedented premium on "knowledge workers", a new class of...people作knowledge workers的同位語，而最后who引導定語從句修飾同位語中的people。
　　2. There’s a growing appreciation that superficially similar groups of customers may have very different preferences in terms of what they want to buy and how they want to buy it. (2005. 閱讀. 12. Text 4)
　　【譯文】商家越來越理解，表面上相似的顧客在想要購買的商品和購買的方式方面可能會有截然不同的喜好。
　　【析句】例句2充分體現了英語中抽象名詞的廣泛使用。主句There's a growing aprreciation, appreciation是由動詞轉換而來的抽象名詞，在句中表達appreciate的意義，它的后面有that引導的同位語從句。同位語從句中，主句是similar groups of customers may have different preferences in terms of..., in terms of是介詞短語，of后有兩個并列的賓語從句what they want to buy 和how they want to buy it。
　　3. More companies are learning the importance of destructive technologies--innovations that hold the potential to make a product line, or even an entire business segment, virtually outdated. (2005. 閱讀. 12. Text 4)
　　【譯文】越來越多的公司正意識到具有破壞性的技術的重要性——這些創新可能會使一條生產線、甚至是整個產業部門都真正地過時。
　　【析句】復合句。主句More companies are learning the importance of destructive technologies,破折號后，innovations是destructive的同位語，后面又有that引導的定語從句修飾。定語從句的主干是that hold the potential to make...virtually outdated, 因為make后有多個直接賓語，容易導致對句子理解錯誤。