同位语从句讲解一、理解同位语从句的含义，把握同位语从句的实质在主从复合句中作同位语的从句称为同位语从句同位语从句一般用that, whether, what, which,who, when, where, why, how 等词弓I导，常放在 fact, news, idea, truth, hope, problem, information, wish, promise, answer, evidence, report, explanation, suggestion, conclusion 等抽象名词后面，说明该名词的具体内 容换言之，同位语从句和所修饰的名词在内容上为同一关系，对其内容作进一步说明例：The news that they had won the game soon spread over the whole school.他们比赛获胜的消息很快传遍了整个学校I heard the news that our team had won .我听到了我们队获胜的息I had no idea that you were here .我不知道你在这里1 .名词作同位语Mr. Wang, my child ' s teacher, will be visiting us on Tuesday.王先生，我孩子的老师，星期二要来看我们。
2 .短语作同位语1, the oldest girl in the family, always had to care for the other children.我，作为家里最大的女孩，老得照料家中的其他孩子3 .直接引语作同位语But now the question comes to their minds, “ Did she die young because she was a clone?"但是现在他们不得不思考这样的问题：“多利早死是因为它是一只克隆羊吗？ ”4 .句子作同位语The girls were surprised at the fact that ocean ships can sail up the Great lakes.巨大的海轮可以开到五大湖，让表姐妹俩感到吃惊二、正确运用同位语从句的引导词，准确把握同位语从句1 .如同位语从句意义完整，应用that引导同位语从句即that不充当任何成分，只起连接作用，不可省略）例：The general gave the order that the soldiers should cross the river at once.4各军下达了战士们立即 过河的命令。
析：the soldiers should cross the river at once 是 the order 的全部内容，且意义完整，因此应用that引导同位语从句2 .如同位语从句意义不完整，需增加"是否"的含义，应用 whether引导同位语从句if不能引导同位语从句）例：We'll discuss the problem whether the sports meeting will be held on time. 我们将讨论运动会是否 会如期举行的问题析：the sports meeting will be held on time意义不完整，应加"是否"的含义才能表达 the problem的 全部内容，因此应用 whether引导同位语从句3 .如同位语从句意义不完整，需增加 "什么时候"、"什么地我"、"什么方式”等含义，应用when, where, how等词引导同位语从句例 1 ： I have no idea when he will be back.析：he will be back意义不完整，应加"什么时候”的含义才能表达idea的全部内容，因此应用when 引导同位语从句。
例 2 ： I have no impression how he went home, perhaps by bike.析：he went home意义不完整，应加"如何”的含义才能表达impression的全部内容，因此应用how引导同位语从句4 .当主句的谓语较短，而同位语从句较长时，同位语从句常后置如： The thought came to him that maybe the enemy had fled the city.他突然想起可能敌人已经逃出城了三、把握同位语从句和定语从句的区别，明确同位语从句和相似从句的界限同位语从句和定语从句相似，都放在某一名词或代词后面，但同位语从句不同于定语从句同位语从句对名词加以补充说明，是名词全部内容的体现，且名词和同位语从句的引导词均不在从句中作成分；定 语从句说明先行词的性质与特征，与先行词是修饰与被修饰的关系，且名词和定语从句的引导词均在从句 中作成分区分时可以在先行词与与从句之间加一个系动词be使之构成一个新句子，如果句子通顺且符合逻辑，则为同位语从句，反之，则为定语从句如： The report that he was going to resign was false.因为 the report was that he was going to resign 句意通顺，所以， that he was going to resign 是同位语从 句。
1) Information has been put forward more middle school graduates will be admitted into universities.A. while B. that C. when D. as析：答案为 Bo more middle school graduates will be admitted into universities 是 Information 的内容， 且Information不在从句中作成分，所以该句为同位语从句应将该句区别于：2) It is said that more middle school graduates will be admitted into universities , this is the information has been put forward.A. what B. that C. when D. as析：答案为 Bo that has been put forward为information的修饰性定语，且 information在从句中作 主语，所以该句为定语从句。
例 2： She heard a terrible noise,brought her heart into her mouth.(MET91)A. it B. which C. this D. that析：答案为Bo分析语境含义、句子结构和句子成分可知，该句为非限制性定语从句，先行词为 a terrible noise,且它在从句中作主语应将该句区别于：I can't stand the terrible noise she is crying loudly.A. it B. which C. this D. that析：答案为 Dshe is crying loudly 是 the terrible noise 的内容，且 the terrible noise 不在从句中作 成分，所以该句为同位语从句巩固性练习：1. The fact she works hard is well known to us all.A. that B. what C. why D. which2. The fact he was successful proves his ability.A. hat B. what C. which D. why3. The news he was kidnapped surprised us greatly.A. what B. that C. why D. when4. His suggestion the meeting be delayed was turned down.A. which B. that C./ D. it5. I have no idea he will start.A. when B. that C. what D./6. I've come from the government with a message the meeting won't be held tomorrow.A. if B. that C. whether D. which7. The thought he might fail in the exam worried him.A. when B. which C. what D. that8. The order the prisoner be set free arrived too late.A. which B. whether C. that D. what9. The nurses are trying their best to reduce the patient's fear he would die of the disease.A. that B. as C. of whichD. which10. He often asked me the question the work was worth doing.A. whether B. where C. that D. whenKeys: 1-5 AABBA 6-10 BDCAA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。
如：The possibility that the majority of the labour force will work at home is often discussed.（同位语从句 ）We are not looking into the question whether he is worth trusting.（同位语从句）Word came that he had been abroad.（同位语从句 ）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）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）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。
如：The news that。