2015年高二英语教案：M4 Period 5《Grammar》（外研版选修六）.docVIP

Teaching objectives and demands: 1. To experience and discover what is the Present Perfect Progressive Tense. 2. To grasp the usage of the Present Perfect Progressive Tense. 3. To know the main differences between the Present Perfect Tense and the Present Perfect Progressive Tense. Teaching keys and difficulties: 1. To grasp the usage of the Present Perfect Progressive Tense. 2. To know the main differences between the Present Perfect Tense and the Present Perfect Progressive Tense. Teaching procedures: Step 1. Experience and discover the Present Perfect Progressive Tense. Activity 1 Directions: ask the students to read the sentences from the passage in Reading and Vocabulary and decide if they are true Example sentences: Liu Fang has played the pipa since the age of six. She’s given concerts since she was eleven. Now, please tick the following sentences you agree with according to the above example sentences.1. Liu Fang still plays the pipa. 2. She only played the pipa when she was six. 3. She has given concerts regularly since the age of eleven. 4. She only gave concerts when she was a child. Activity 2 Directions: ask the students to read the example sentences and answer the questions. Example sentences: Liu Fang has been playing the pipa for the last three hours. She’s been performing concerts every day since last month. Q1: What is the difference in form between these sentences and those in Activity 1. Answers: They are in the present perfect progressive Q2: Which of these things is true about the sentences? (a)The people started doing these things in the past and are still doing them. (b)The people do these things every day. (c)The actions take a very long time to complete. Answers: (a) Step 2. Detailed explanation about the Present Perfect Progressive Tense. I. The form of the Present Perfect Progressive Tense. 现在完成进行时由“助动词have/has+been+动词-ing”形式构成。 II. The basic usage of the Present Perfect Progressive Tense. 1. 表示从过去开始一直持续到现在的动作，这个动作是否继续下去，则由上下文决定。它常与表示一