(
课件网) Unit 8 Let’s celebrate Grammar What are they doing They are playing basketball. What are they doing They are playing football. What is she doing She is swimming. They are boating. What are they doing What are they doing They are running. What is she doing She is dancing. What is it doing It is dancing/skating. What is he doing He is driving. New Year's Day is coming. Our school is having a show to celebrate the festival. Look at me, the girl in the middle! We are dancing. The boy behind us is Daniel.He is playing the violin. The girl over there is Sandy. She is playing the piano with another girl. They are playing lively music for the dance. pay attention to the expressions in bold. I am eating. You/ We/ They are eating. He/ She/ It is eating. 一、现在进行时肯定句和否定句的构成： 肯定句: 主语+ am/ is /are + v-ing ... 否定句: 主语+ am/ is / are not + v-ing ... 现在进行时 I am not eating. You/ We/ They are not eating. He/ She/ It is not eating. I am eating. → Am I eating Yes, I am. / No, I am not. (或 No, I’m not.) 二、现在进行时一般疑问句的构成及回答： You/ We/ They are eating. → Are you/ we/ they eating Yes, we/you/ they are. No, we/ you/ they are not (aren’t). He/ She/ It is eating. → Is he/ she/ it eating Yes, he/she/it is. No, he/she/it is not. (isn’t) 规律：将be 动词移到主语前面。 注意：肯定回答时主语be动词不能缩写，否定回答时be动词和not可以用完全形式也可以用缩写。 现在进行时的句式结构 特殊疑问句： ① 疑问词（不作主语）+ be(am/is/are)+主语+ 动词的现在分词（+其他）？ 例： -What is your father doing -He is watching TV. ② 疑问词（作主语）+ be(am/is/are)+ 动词的现在分词（+其他）？ 例： -Who is speaking in the room -Tom. 注意：现在进行时的特殊疑问句不可直接使用Yes或No回答，而要根据实际情况回答。 时间标志词 Listen! 明显： now, at the/this moment(在此时),these days Look! eg. He is doing his homework now. I am watering the plants at the moment. eg. Look! The boys are running. Listen! Mike is crying. Be quiet! My sister is sleeping. 隐藏： Be quet! Be quick! 现在进行时：表示说话时正在进行或发生的动作，也可表示当前一段时间内的活动或现阶段正在进行的动作。 其基本结构是“be+动词的现在分词”, 其中be有人称和数的变化,意思为“.......正在........”。 我们正在跳舞。 他们正在为舞蹈演奏欢快的音乐。 他正在拉小提琴。 happening now 现在进行时的句式结构 肯定句： 主语 + be(am/is/are) + 动词的现在分词 (+ 其他). 否定句： 主语 + be(am/is/are) + not +动词的现在分词 (+ 其他). 一般疑问句： Be(Am/Is/Are) + 主语 + 动词的现在分词 (+ 其他) 肯定回答： Yes, 主语 + be(am/is/are) 否定回答： No, 主语 + be(am/is/are) + not. 现在进行时的句式结构 将be动词提到句首，有some变any, and变or, too变either, 如果肯定句是第一人称的话要变成第二人称！ Finish Part A is making is watering are cooking is sitting are eating am watching 动词的现在分词的变化规则 ①大部分动词 ②以不发音的字母e结尾的动词 ③以ie结尾的动词 ④以一个辅音字母结尾的重读闭音节词 直接加-ing 去掉e, 再加-ing 变ie为y, 再加-ing 双写最后一个辅音字母，再加-ing 说出 ... ...
