英语中的从句类型有很多很多,其中比较重要的就是宾语从句了,宾语从句是高考英语重要句型,也是难点句型,很多学生并不能区分什么是宾语从句,今天小编来给大家介绍什么是宾语从句,以及宾语从句的引导词有哪些?
宾语从句的引导词有哪些?宾语从句中的that可以省略吗
宾语从句,是名词性从句的一种。在主从复合句中充当宾语,位于及物动词、介词或复合谓语之后的从句称为宾语从句。宾语从句分为三类:动词的宾语从句,介词的宾语从句和形容词的宾语从句。

宾语从句的从属连词主要有that,if,whether. 连接词that引导宾语从句在句中无词义,不充当句子成分,口语中一般可以省略。 whether后可紧跟or not;whether从句可作介词的宾语。当if/whether引导宾语从句时,在从句中不做任何成分,但有具体的含义,意为"是否"。if/whether不能省略。

时态: 主句是一般现在时,从句根据实际情况使用任何时态。
例句:The headmaster hopes everything goes well.
主句是一般过去时,从句须用过去时态的某种形式。
例句:She was sorry that she hadn't finished her work on time.
当宾语从句表示的是一个客观真理或者事实真理时,即使主句是过去时,从句也用一般现在时态。
例句:The teacher told his class that light travels faster than sound. 宾语从句的引导词有哪些?宾语从句中的that可以省略吗
在以下情况中that不能省略:  
当句中的动词后接多于两个由that引导的宾语从句时,第一个that可省,但后面的that不可省。
  例句:He said (that) you were too young to understand the matter and that he was asked not to tell you.  
当主句的谓语动词与that宾语从句之间有插入语时,that一般不可省。  
例句:Just then I noticed, for the first time, that our master was wearing his fine green coat and his black silk cap.  
当that从句是双宾语中的直接宾语时,that不可省。  
例句:I can’t tell him that his mother died.