【正文】
Teaching aids: teaching cards , pictures , a tape recorder . Period 1 Teaching procedures : Step 1 Leading in Ask one of the students the question: Liu Ziyang, when did you study English ?Help the student answer: I studied English in ,in this unit we’re going to talk about how long we’ve been doing things .Then ask :Liu Ziyang, how long have you been studying English ?Help him to answer : I have been studying English since 2020./I have been studying English for two years .Get Ss to repeat . Repeat the activity with other students . Step 2 Pretask SB Page 44 , 1a . 1. Ask a student to read the three questions ,and answer the questions as example like this: I started class at 9:00 .I slept for ten hours . I have been skating for five hours/ I have been skating since five years ago . 2. Have Ss work in groups of four . 3. Ask the class each question and call on several different students to answer . Step 3 Whiletask SB Page 44 , 1b . 1. Play the recording and get Ss to fill in the chart . 2. Correct the answers . SB Page 44 , 1c .In pairs ,get the students to ask and answer .Then ask some pairs to say their conversations to the class. SB Page 45 , 2a amp。 2b . 1. Read the instructions and have Ss know what to do . 2. Play the recording .Ss write down their answers . 3. Correct the answers . Step 4 Posttask SB Page 45 , 2c 1. Read the example in sample dialogue in activity 2c .