1. 复合句的五种基本句型是什么？ 复合句是由两个或两个以上的分句构成的句子，其中一个分句是主句，其他分句是从句。从句在复合句中充当附属成分，可以分为五种基本句型：名词性从句、形容词性从句、副词性从句、主从句倒装和特殊疑问词引导的从句。 2. 名词性从句 名词性从句在句子中担任名词的功能，常常作为主语、宾语、表语和同位语等。名词性从句可以由连接词that, whether, if, who, whom, whose, what, which, when, where, why等引导。例如： (1) That he has no experience doesn't worry me. (2) Whether he will come or not is unknown. (3) I don't know if he can make it. 3. 形容词性从句 形容词性从句在句子中充当形容词的功能，用来修饰名词或代词。形容词性从句可以由连接词that, who, whom, whose, which, when, where, why等引导。例如： (1) The book that he recommended is very interesting. (2) I don't know the person who called me yesterday. (3) The reason why he left is unknown. 4. 副词性从句 副词性从句在句子中充当副词的功能，用来修饰动词、形容词和副词，表示原因、条件、目的、结果、方式、时间、地点、比较等。副词性从句可以由连接词that, if, whether, though, although, because, since, as, if, when, where, while, unless, until等引导。例如： (1) I will go to the party if I have time. (2) Although he is poor, he is very happy. (3) He speaks English as if he were a native speaker. 5. 主从句倒装 主从句倒装是一种特殊的复合句结构，主要用于强调从句或调整语序。在主句中，主语和谓语的顺序颠倒，成为倒装语序。例如： (1) Never have I seen such a beautiful view. (2) Only when he comes back can we start the meeting. 6. 特殊疑问词引导的从句 特殊疑问词引导的从句是用来回答特殊疑问句的从句，可以由who, whom, whose, what, which, when, where, why, how等引导。例如： (1) Who told you the news? (2) What did you buy for your mother's birthday? (3) Where will you go for your summer vacation? 7. 总结 复合句是由两个或两个以上的分句构成的句子，其中一个分句是主句，其他分句是从句。从句在复合句中充当附属成分，可以分为五种基本句型：名词性从句、形容词性从句、副词性从句、主从句倒装和特殊疑问词引导的从句。熟练掌握复合句的五种基本句型可以让我们写出更加流畅、准确、自然的语言。