在英语语法中，that从句是一种非常常见的句子结构。它通常被用于介绍一个新的想法或者在句子中引入一个陈述或者描述。下面是几种常见的that从句。
- 名词性that从句：这种从句在句子中充当名词的角色，可以作为主语、宾语或者表语出现。例如：
- That he is a liar is well known to everyone.（作为主语）
- I believe that you are telling the truth. （作为宾语）
- His only wish is that he could see his daughter again. （作为表语）
- 形容词性that从句：这种从句通常用于描述或修饰名词或代词。例如：
- He is certain that he will win the game. （修饰“certain”）
- I am not sure that I can finish the project on time. （修饰“sure”）
- She is afraid that she will fail the exam. （修饰“afraid”）
- 副词性that从句：这种从句通常用于修饰动词、形容词或副词。例如：
- He speaks so fast that I can hardly understand him. （修饰“fast”）
- The movie was so boring that I fell asleep. （修饰“boring”）
- She ran so quickly that she won the race. （修饰“quickly”）
以上就是几种常见的that从句。掌握这些从句的用法和不同的句子结构，可以帮助我们更好地理解英文语法，提高英语水平。
