do句型转换专项讲解（课件）人教精通版英语四年级下册

do句型转换 概念理解 01 找差别 I like mangoes. He likes mangoes. 陈述句 主语为第一、第二人称 动词用原形主语为三单 动词三单形式 找差别 I don’t like mangoes. He does’t like mangoes. I like mangoes. He likes mangoes. 改否定句 动词原形 don’t放在动词前 动词三单 doesn’t放在动词前，动词恢复原形 找差别 I like mangoes. He likes mangoes. Do you like mangoes? Does he like mangoes? 改一般疑问句 动词原形 句首加Do 动词三单 句首加Does，动词恢复原形 否定句 02 陈述句 1.肯定句：主语+动词+其它 I like this blue sweater. 2.主语是三单，动词用三单 Tom likes this bule sweater. Tom likes English. 否定句 1.I like mangoes.(改为否定句) I don’t like mangoes. 2.We drive cars.(改为否定句) We don’t drive cars. 否定句 3.They eat fish.(改为否定句) They don’t eat fish. 否定句-三单 1.She likes mangoes.(改为否定句) She doesn’t like mangoes. 2.He plays football.(改为否定句) He doesn’t paly football. 否定句-三单 3.My mother goes shopping every week.(改为否定句) My mother doesn’t go shopping every week. 4.Li Yan runs fast.(改为否定句) Li Yan doesn’t run fast. 练习 1.I like tigers.(改为否定句) _________________________ 2.We have three lessons.(改为否定句) _________________________ 3.They eat some bread.(改为否定句) ____________________________ I don’t like tigers. We don’t have three lessons. They don’t eat any bread. 练习 4.Tom has a brother.(改为否定句) _________________________ 5.He likes dogs.(改为否定句) _________________________ 6.She has a new pen.(改为否定句) __________________________ Tom doesn’t have a brother. He doesn’t like dogs She doesn’t have a new pen. 练习 7.I clean the house every day. (改为否定句) _________________________ 8.My father brushes his teech every night.(改为否定句) _________________________ 9.We go swimming every week.(改为否定句) __________________________ I don’t clean the house every day. My father doesn’t brush his teech every night. We don’t go swimming every week. Let’s play a game! 改一般疑问句 03 一般疑问句 （1）找动词，观察实义动词为原型 （2）将Do 放到句子前面 （3）人称I 变为you （4）其他不变，问号结尾 I like mangoes.(改为一般疑问句) Do you like mangoes? I、we、they 改一般疑问句 We like this blue sweater. Do you like this bue sweater ? They play