【问】 ×In order to get through the dense jungle，a native guide is necessary.有一本书(TheRandomhouse Handbook)说这个句子是错误的，但没有分析。我看不出有什么错误。请分析。

【答】 这是一种很常见的错误。按照英语语法的要求，in order to引出的动词不定式，其逻辑主语应当与句子的语法主语相一致。例如：

1. In order to follow the buffalo，the Indians often had to move their camps. (DAI)

为了跟随野牛，印第安人常常不得不迁移营地。

2. He was saving as much as possible in order to repay Jennie eventually.(Dreiser)

他尽最大可能节省钱以便最终还清他欠珍妮的债。

如果动词不定式的逻辑主语与句子的语法主语不一致，则需要用for引出动词不定式的逻辑主语：

1. In order for you to be eligible for a student grant，your parents must receive less than astipulated annual income. (CGEL)

为使你有资格获得奖学金，你父母的年收入必须低于某规定值。

2. They left the door open in order for me to hear the baby. (CGEL)

他们开着门以便让我听到婴儿的动静。

或者使用in order that引导的从句：

1. I lent him ￡5 in order that he might go for a holiday. (Palmer)

我借给他五英镑以便他能去度假。

2. And I have come all the way from Vienna in order that you should thoroughly understand me. (Wilde)

我迳直从维也纳赶来是为了让你彻底理解我。

据此，你所问的句子可以有两种改法：

(1) In order for you to get through the dense jungle，a native guide is necessary.

(2) In oder that you get through the dense jungle…