文档介绍：点击朗诵外语- 需要启用宏后才能使用朗诵功能启用方法:先启用编辑,然后启用宏内容。2003 版启用方法如下: 工具→宏→安全性→低或中→重启文档→启用宏) 不会启用宏?点击查看帮助! 一时态一般现在时现在进行时一般过去时现在完成时一般将来时过去进行时过去完成时过去将来时 1. 一般现在时表示一般性经常性的动作或一般性事实。含有 be动词的句子 Heisateacher. The girl isvery beautiful. Tim and Jack are students. ★变疑问句将 be动词移到句首 Isheateacher? Isthe girl very beautiful? Are Tim and Jack students? ★变否定句在 be动词后面加 not Heisnot ateacher. The girl isnot very beautiful. Tim and Jack are not students. ★肯定回答及否定回答 Yes, heis. No, heisnot. Yes, she is. No, she isnot. Yes, they are. No, they are not. 不含有动词的句子即含有一般动词的句子第三人称单数及单数名词 Helikes books. She likes him. 第1页,共 43页 The dog likes bones. ★变疑问句在句首加 does, 动词变为原型 Does he like books? Does she like him? Does the dog like bones? ★变否定句在主语及动词之间加 doesn ’ t,动词变为原型 He doesn ’t like books. She doesn ’t like him. The dog doesn ’t like bones. ★肯定回答及否定回答 Yes, he does. No, he doesn ’ t. Yes, she does. No, she doesn ’t Yes, it does. No, it doesn ’ t. 注意第三人称单数形式一般在动词后面加 S不要和名词复数混淆变否定句或疑问句时名词复数没有任何变化。其他人称及复数名词 I want to have a bath. We have some meat. The students like smart teachers. 第2页,共 43页★变疑问句在句首加 do Do you want to have a bath? Do we have any meat? Do the students like smart teachers? ★变否定句在主语和动词之间加 don ’ t. You don ’t want to have a bath. We don ’t have any meat. The students don ’t like smart teachers. ★肯定回答及否定回答 Yes, I do. No, I don ’ t. Yes, we do. No, we don ’t Yes, they do. No, they don ’ t. 。构成主语 be动词动词的现在分词其它成分现在分词的构成见附录 We are having lunch. He is reading a book. The dog is running after a cat. 第3页,共 43页 The boys are swimming across the river. ★变疑问句将 be动词移到句首 Are we having lunch? Is he reading a book? Is the dog running after a cat? Are the boys swimming across the river? ★变否定句在 be动词后面加 not We are not having lunch. He is not reading a book. The dog is not running after a cat. The boys are swimming across the river. ★特殊疑问句 what, which, how, where, who, etc. 疑问词动词主语现在分词 What are you doing? What is she doing? What is the dog doing? (必背)没有进行时的动词第4页,共 43页表示状态思想感情和感觉的动词不能表示正在进行的动作 s