现在分词 教案现在分词 教案.doc

Unit 2 The Environment Period 6-8 Grammar and usage 【Learning aims】 1. To grasp the usages of the –ing form and the –ing phrase. 2. To grasp the usages of the perfect and passive form 3. To finish some exercises about the –ing form. 【Self-directed study】 The formation of the –ing form:（A级） Turn the following verbs into the –ing form. 1. debate _______________ 2. flow _______________ 3. wipe _______________ 4. cut _______________ 5. lay ________________ 6. clap _______________ 总结：The formation of the –ing form(动词ing 形式的构成)：___________________________ What does the –ing form function as? (动词ing 形式起什么语法功能？) 【Discussion】 Learning procedures: Step 1. Identifying the functions of the –ing form.（说一千，道一万，学语法关键是记住语法规则） Read the points on page 28 and page 30 as carefully as you can and remember the different functions of the –ing form.（记住the v—ing 形式的语法功能。A级） Read and study the examples below each point on P28 and P30, then be able to identify the functions of the –ing form.（区分v—ing 在句子中的语法功能。B级） Read and study the following sentences and point out the different functions of the –ing form.（C级） 1). A waiting taxi is around the corner. Go and take it. ________________ 2). We all found the film very interesting. _______________ 3). I heard someone playing the violin in the next room. __________________ 4). They came into the classroom, talking. ______________ 5). I watched the athletes jumping into the swimming pool. __________ 6). The news was really exciting. __________ 7). The smiling boy ran to his mother. ______________ 8). The boy sat on the sofa watching TV. ____________ 9). The woman coming to dinner this evening works in the bank. ___________ 10). Having finished his homework, he sat down to watch TV. ______________ Step 2. Grammatical functions of v-ing ★V-ing used as attribute:（C级） 1. a running man 2. The man running in the picture is Liu Xiang. 3. The ma