Unit 3教案1.doc

Unit 3 What were you doing when the UFO arrived ? Teaching goals :Words : barber shop , well , bathroom , accident , earth , silence , playground , around , strange , kitchen , modern , follow , shirt . when , while 引导的时间状语从句。 学习过去进行时态。 利用知识谈论过去发生的事情。 复习过去式，学会讲故事。 了解一些自然科学知识和社会科学知识。 Important and difficult points: when , while 引导的时间状语从句。 学习过去进行时态。 Teaching aids : a tape-recorder , cards . Period 1 Teaching procedures : Step 1 Leading in Greetings and free-talk . Check the homework . Dictate the words in Unit 2 . Step 2 Pre-task SB Page 18 , 1a . Point to the sentences .Read the sentences .Explain what each one means . Look at the picture .Point out the six people .Match the statements with the people in the picture . Check the answers . Practice reading . Step 3 While-task SB Page 18 , 1b . Read the instructions .Make sure the Ss understand what they should do . 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 . Play the tape twice . Circle the correct responses . 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 . Read the sentences .Make sure the Ss understand what they mean . Play the tape twice .Order these statements . Play the tape again ,correct the answers . SB Page 19 , 2b . Read the instructions . Play the recording .Write “when” or “while” on each line . 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 . Point ort the picture .Ask what each person is doing . Groupwork : Ask “What was …doing when the UFO arrived ?” 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 . Homew