I'm sure he will do the work to the best of his ability

问题描述:

I'm sure he will do the work to the best of his ability
详细分析一下上句中的每个单词都做什么成分,句型属于什么结构,

I'm sure 是主句,后面是宾语从句,省略了that.其中he是主语 will do 是谓语the work是宾语 to the best of his ability是状语修饰谓语动词.句意是:我相信他会尽他最大努力做这工作的.I am sure 不是主系表结构吗?还能跟宾语吗?是这样的,主句I am sure是主系表结构,但这种结构后跟的确实是宾语从句。类似的还有be afraid, be glad 等。保证答案是正确的。