that引导的宾语从句用法具体如下：

1.引导词that通常不需翻译，在从句中不担任句子成分，在口语中常可省略

He said (that) he would come. 

他说他会来。

I hope (that) it will be warmer tomorrow. 

我希望明天暖和一些。

She thinks (that) you are her mother. 

她以为你是她的母亲。

2.宾语从句中，that不可省略的情况如下：

主句后接多个由that引导的从句时，第一个从句的that可省，但后面的that不可省

She said (that) you were still a child and that you would not understand. 

她说，你还是个孩子，你不会明白的。

当that从句前有插入语时，that不可省

Your father said, happily and proudly, that you had won the gold medal. 

你父亲高兴和自豪地说，你获得了金牌。

当有it作形式宾语，而that从句作真正宾语时， that不可省略

We consider it an honor that you have entrusted your children to us. 

你把你的孩子托付给我们，我们深感荣幸。

当that从句是双宾语的直接宾语时，that不可省略

She told me that she was getting married. 

她告诉我她要结婚了。

当that从句位于介词except/but之后时，that不可省略

She said nothing except that she was all right.

 她什么也没说，只说她挺好。

仅用that从句回答问题时，that不可省略

---What did she say? 

她说什么？

---(She said )That the problem was very serious. 

（她说）这问题很严重。

当that从句移至句首表示强调时，that不可省略

That she will succeed, I believe. 

我相信她会成功。

以上就是that引导的宾语从句的用法，希望对你有所帮助。