八年级英语 Unit3 What were you doing when the UFO arrived教案1

八年级英语 Unit3 What were you doing when the UFO arrived教案1Teaching goals :1. Words : barber shop , well , bathroom , accident , earth , silence , playground , around , strange , kitchen , modern , follow , shirt .2. when , while 引导的时间状语从句。3. 学习过去进行时态。4. 利用知识谈论过去发生的事情。5. 复习过去式，学会讲故事。6. 了解一些自然科学知识和社会科学知识。Important and difficult points:1. when , while 引导的时间状语从句。2. 学习过去进行时态。Teaching aids : a tape-recorder , cards .Period 1Teaching procedures :Step 1 Leading in 1. Greetings and free-talk .2. Check the homework .3. Dictate the words in Unit 2 .Step 2 Pre-taskSB Page 18 , 1a .1. Point to the sentences .Read the sentences .Explain what each one means .2. Look at the picture .Point out the six people .Match the statements with the people in the picture .3. Check the answers .4. Practice reading .Step 3 While-taskSB Page 18 , 1b .1. Read the instructions .Make sure the Ss understand what they should do .2. Look at the dialogue in the picture .Explain :过去进行时态的构成: was / were + doing .用法:表示过去某一时刻或某一段时间正在进行的动作，一般用时间状语来表示。I was standing in front of the library when the UFO arrived .3. Play the tape twice . Circle the correct responses .4. Check the answers .Step 4 Post-taskTalk about what people were doing when the UFO arrived .Step 5 While-taskSB Page 19 , 2a .1. Read the sentences .Make sure the Ss understand what they mean .2. Play the tape twice .Order these statements .3. Play the tape again ,correct the answers .SB Page 19 , 2b .1. Read the instructions .2. Play the recording .Write “when” or “while” on each line .3. Play the recording again ,correct their answers .Notice: when / while When es before a quick action that happens only once .The word “while” es from an action that continues for some time .Step 6 Post-taskSB Page 19 , 2c .1. Point ort the picture .Ask what each person is doing .2. Groupwork : Ask “What was doing when the UFO arrived ?”3. Ask a group to say its conversation to the class .Step 7 Grammar Focus Review the grammar box by asking some students to read the sentences .Homework :1. Go over the words in this unit 2. 用介词或介词短语填空。 They were talking the phone . I was the barbers chair . The boy was walking the street when a UFO landed . I had a very unusual experience Sunday . The alien visited the Museum Flight .教学后记: