He said a lot ,but I didn't understand____he said meant.A;all that B;what all为什么不选A,看成定语从句的先行词和引导词呢?选B是为什么呢?

分类: 作业答案 • 2021-12-20 02:31:45

问题描述：

He said a lot ,but I didn't understand____he said meant.A;all that B;what all
为什么不选A,看成定语从句的先行词和引导词呢?
选B是为什么呢?

答

B -->如果选A，meant无主语；如果选B，what引导的从句当名词，做understand宾语从句

答

选B是宾语从句　　　定语从句是在句中作定语成分　选A的话句中all就成了宾语　that引导的句子就是定语　但是就没办法解释了

答

好吧
understand是及物动词,需要宾语,所以后面的句子是宾语从句,其中what是从句主语,meant是谓语,而all he said 是what的定语从句
如果选a ,that引导he said做定语说得通,但是all不能同时做understand的宾语和meant的主语,所以错了