Question

一般过去时改否定

Answer 1

问：一般过去时改否定

答：一般过去时改否定的方法是：将句子中的助动词 did 改为 did not，也可以缩写为 didn't。 例句： 正面句：I studied English yesterday. (我昨天学英语了。) 否定句：I did not study English yesterday. 或者 I didn't study English yesterday. (我昨天没有学英语。) 正面句：They went to school last Monday. (上个星期一他们去学校了。) 否定句：They did not go to school last Monday. 或者 They didn't go to school last Monday. (上个星期一他们没有去学校。) 正面句：He called me five minutes ago. (他五分钟前打电话给我了。) 否定句：He did not call me five minutes ago. 或者 He didn't call me five minutes ago. (他五分钟前没有打电话给我。) 所以，一般过去时改否定的方法就是将助动词did改为did not 或 didn't。这是一般过去时否定句的基本构成方法。

答：这里是将给出的句子转换为一般过去时的否定句： 1. They didn't clean their shoes yesterday. 2. He didn't open the box last night. 3. They didn't sharpen their pencils this morning. 4. She didn't turn on the television this evening. 5. She didn't listen to the radio last night. 6. She didn't boil an egg yesterday morning. 7. They didn't play a game yesterday afternoon. 8. He didn't stay in bed the day before yesterday in the morning. 9. She didn't telephone her husband yesterday evening. 10. She didn't call the doctor the night before last. 转换方法是： 1. 将句子中的实意动词(clean, open等)改为原形。 2. 在实意动词前加上did not。 3. 保持其他部分不变。