同位语从句
同位语从句说明它们的内容。
被修饰词有：fact, news, hope, opinion, order, question,problem, belief, truth, theory, decision, discovery, conclusion,promise, rumor, fear, thought, suggestion, plan, idea…
一、同位语从句与定语从句的相似之处
1、两种从句都可以译成定语
The news that our team has won the final match is encouraging. (同位语从句)
我们队取得决赛胜利的消息令人鼓舞。
The news that you told us is really encouraging.
(定语从句)你告诉我们的消息真的令人鼓舞。
2、两种从句都可以用that引导
The suggestion that students should learn something practical is worth considering. (同位语从句)
学生应该学些实用的东西的建议值得考虑。
The suggestion that is worth considering is that the students should learn something practical.
(定语从句)值得考虑的建议是学生应该学些实用的东西。
二、同位语从句与定语从句的不同之处
1、从句的作用不同：同位语从句用来进一步说明前面名词的内容;定语从句用来修饰、限定前面的名词。
The news that our team has won the final match
is encouraging. (从句说明“消息”的内容：我们队取得了决赛胜利。)
The news that you told us is really encouraging.
(从句对“消息”加以限定：是你告诉我们的，而非来自其他渠道。但消息是何内容却不得而知。)
2、引导从句的关联词that的功能不同：that引导同位语从句时是一个纯连词，不充当任何成分;而引导定语从句的that是关系代词，既指代先行词又须在从句中充当成分。
1)Dad made a promise that he would buy me CD player if I passed the English test.
(that 不充当任何成分)
2) Dad made a promise that excited all his children.
(that指代promise，又在从句中充当主语。)
