Unit 25 The accidentLesson 100Teaching Objectives:Grasp the Past Continuous Tense, the adverbial clause of time and new words and expressions.Language focus:1.The adverbial clauseWhen the teacher came in, the students stopped talking.My father was reading the newspaper while my mother was cooking the dinner.As I was crossing the road, I saw he ran towards me.2. New words and phraseson the way( back) to somewhere, be alone, be worried about, diver, turn the steering wheel, on land, swim over to, pull. . .out of, come to oneself, knock onProperties: Tape-recorder, Overhead projectorTeaching procedures:Step 1 Revision1. Ask the students What were you doing when I came into the classroom?2. Revise while: ask What were you doing while you were waiting for me? Help the students to use while + Past Continuous Tense.3. Revise the difference between when + Simple Past Tense and while + Past Continuous Tense. Explain when=at that time, at that point in time, while =during that time.Step 2 ListeningPlay the tape through once. Give the students a few moments to write down their answers. Then play the tape again. Students check their answers in pairs, then with the whole class.Step 3 Practiceask the students two questions as an example.What happened while you were talking?What were you doing when the teacher came in?Get them to make up their own examples.First they do it with the sentences given in pairs, then they ask and answer in a chain with new sentences. The chain goes like this: A asks B,B askes C,C askes D, . . . ,etc.Step 4 ReadingSay Weve talked about many car accidents and what causes traffic accident. Today we are going to learn another article about a traffic accident.Let the students look at the pictures and guess what the story is about.Play the tape for the students to listen and repeat. Answer How did Mr. Jackson get Mrs. Beet out of the car? (through an open window)First get the students to guess the meaning of at once, dive, steering wheel, breathe, mouth-to-mouth, come to oneself.（学生可以查字典）Then explain some of them.Play the tape again (or play the video: Mr. Jackson saves Mrs. Beet). Do Ex.2 of workbook. Then check the answers with the whole class.Step 5 WritingIn small groups have the students discuss the pictures. Then ask them to write down their story.Step 6 DiscussionStudents talk about the cause of this traffic accident, list what people should do on the road and what they should do on the road. They write down the list in pairs, then read it to the whole class for agreement.Step 7 Exercises in classStep 8 Homework1. To write about what happened to Tim yesterday morning according to the pictures.Start like this: Yesterday morning, Tom rode his bike to school as usual. He was riding very fast.2. Finish off the workbook exercises on page 124 126.