我们还没有决定到什么地方去度暑假。

【注意4】在名词doubt"怀疑"后的同位语从句用whether连接；在no doubt"不怀疑"之后的同位语从句用that连接。

　 E.g. We have some doubt whether they can complete the task on time.

　　我们怀疑他们是否能准时完成任务。

　 E.g. There is no doubt that Zhang Wei will keep his promise. 我们相信张卫会守信的。

2.由连接代词who, which, what和连接副词where, when, why, how等引导的同位语从句。此时的引导词在从句中作相应的成分。

　　E.g. I have no idea when he will come back. 我不知道他什么时候回来。

　　E.g. It is a question how he did it. 那是一个他如何做的问题。

　　E.g. He had no idea why she left. 他不知道她为什么离开。

　　E.g. You have no idea how worried I was! 你不知道我多着急！

　　E.g. Have you any idea what time it starts? 你知道什么时候开始吗?

　　E.g. I have no idea which one I should choose.我不知道该选哪一个。

五、同位语从句和定语从句的三点区别：

　　同位语从句和定语从句很相似,但还是有区别的,区别主要在以下三方面:

1. 从词类上区别

同位语从句前面的名词只能是idea/ fact/news/ hope /belief/ suggestion/ proposal/ word /thought/doubt/truth/possibility/promise/order等有一定内涵的名词；而定语从句的先行词可以是名词、代词、主句的一部分或是整个主句。

E.g. The possibility that the majority of the labor force will work at home is often discussed.人们经常讨论大多数劳动力将会在家里工作的可能性。(同位语从句)

E.g. We are not looking into the question whether he is worth trusting. 我们正在调查的问题不是他是否值得信赖的问题。(同位语从句)

　　E.g. Word came that he had been abroad. 据说他已经出国了。(同位语从句)

E.g. Our team has won the game, which made us very happy. 我们的队赢了,这让我们很高兴。

　　(定语从句)

　　E.g. The doctor whom you are looking for is in the room. 你找的那位医生在房间里面。(定语从句)

E.g. His mother did all she could to help him with his study. 他妈妈尽她的最大努力帮助他的学习。

(定语从句,代词all作先行词)

2. 从性质上区别

　　定语从句是从句对其先行词的修饰或限制,属于形容词性从句的范畴；而同位语从句是从句对前面抽象名词的进一步的说明和解释,属于名词性从句的范畴。

　　E.g. The news that our team has won the game was true.我们队赢了那场比赛的消息是真的。

　　(同位语从句,补充说明news到底是一个什么消息)

E.g. The news that he told me yesterday was true.昨天他告诉我的那个消息是真的。

(定语从句,news在从句中作told的宾语)