回答如下: 1. 英语肯定句结构: 1) 主语+系动词+ 表语( 形容词、名词、介词短语、有些副词、不定式、动名词、分词等) 。例如: The pandas are from China. He is a doctor / ill / in / excited. His job is cleaning / to clean the room. 2) 主语 + 谓语动词 (+ 宾语 + 其他)。例如: They work hard. He speaks English. We have no money with us. 2. 英语否定句结构: 1) 主语 + be动词 + not + 系表结构。例如: The pandas are not / aren't from China. He is not / isn't a doctor / ill / in / excited. 2) 主语 + 助动词、情态动词 + not + 谓语动词 (+ 宾语 + 其他)。例如: He can not / can't / cannot swim. They don't / do not know it. 3) 主语 + have ( 有) + not + 宾语。例如: He has not / hasn't a car. (英国英语。美国英语用:He doesn't / does not have a car. ) 3. 一般疑问句结构: 1) be动词 + 主语 + 表语。例如: Are the pandas from China? Is he a doctor / ill / in / excited? 2) have (有) + 主语 + 宾语 (+ 其他)。例如: Have you a car? (英国英语。美国英语用:Do you have a car?) 3. 助动词、情态动词 + 主语 + 谓语动词 (+ 宾语 + 其他)。例如: Do you know him? Can you take me with you?