八年级英语下册unit3教案1

　　 Unit 3 What were you doing when the UFO arrived ?

　　 Teaching 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 1

　　 Teaching procedures :

　　 Step 1 Leading in

　　 1. Greetings and free-talk .

　　 2. Check the homework .

　　 3. Dictate the words in Unit 2 .

　　 Step 2 Pre-task

　　 SB 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-task

　　 SB 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-task

　　 Talk about what people were doing when the UFO arrived .

　　 Step 5 While-task

　　 SB 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 comes before a quick action that happens only once .The word "while" comes from an action that continues for some time .

　　 Step 6 Post-task

　　 SB 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。

　　 ① They were talking the phone .

　　 ② I was the barber's chair .

　　 ③ The boy was walking the street when a UFO landed .

　　 ④ I had a very unusual experience Sunday .

　　 ⑤ The alien visited the Museum Flight .

　　 教学后记: