英语陈述句变否定和一般疑问句

Answer 1

陈述句变成否定句 一） 在其句中含有动词的陈述句，在《BE》动词后加上〈not>即可： 例如： 1) She was playing basketball at that time. _ She was not playing basketball at that time. 2) We are having lunch at school . _ We are not having lunch at school . 二） 在其句中含有情态动词的陈述句，在情态动词后加上〈not)即可： 例如： 1） They can speak English very well. _ Thet can not speak English very well . 2) I can be a middle school student. _ I can not be a middle school student . 三） 在其句中含有实义动词的陈述句，在主语后实义动词前加上（don't ， doesn't ， didn't)即可；其中（don't 和 doesn't)主要用于一般现在时态，（didn't)只要用于一般过去时态。在使用（doesn't 和 didn't)时，要将相应的谓语动词还原成原形； 例如：1） They love lishening to music . _ They don't love lishening to music . 2) She gives me a book to read. _ She doesn't give me a book to read. 3) My sister helped me learn French. _ My sister didn't help me learn French . 以上三点仅用于一般现在时态和一般过去时态的陈述句。 陈述句变一般疑问句 一般疑问句分为be词提前和助动词 1 be词（am\is\are和他们的过去式were\was）提前 eg：1）He is a student!(他是一名学生) Is he a student? （他是一名学生吗？） 2) We are students! （我们是学生） Are you students? （你们是学生吗？） 3)I am a student!(我是一名学生！) Are you students? （你是学生吗？） 2助动词（do\did have\had ） eg: 1) He eat an apple.(他吃苹果。)---eat为动词原形用do提问 Do he eat an apple?(他是苹果了吗？) 2）He ate an apple。（他吃了苹果）--ate为eat的过去分 是词用did提问同时动词ate恢复原形为eat Did he eat apple?(他吃了苹果了吗？) 3）I have\had finished homework.(我完成了作业) Have\had you finished homework?(你完成作业了没？) 3 can \ may \must 等情态动词 eg:1)we can\may\must do it .(我们能\可能\必须完成它) Can\May\Must we must do it?(我们能\可能\必须完成它吗？)