英语人教版八年级下册时态.docx

Teaching goals (教学目标)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：(教学重难点)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 .第一课时Teaching procedures(教学步骤) :Step 1 Leading in(导入话题，激活背景知识)1.Greetings and free-talk . 2.Check the Homework(家庭作业) .3.Dictate the words in Unit 2 .Step 2 Pre-task(任务前活动)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(任务中活动)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 .语法：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(任务后活动)Talk about what people were doing when the UFO arrived .Step 5 While-task(任务中活动)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(任务后活动)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 FocusReview the grammar box by asking some students to read the sentences .Homework(家庭作业) :1.Go over the words in this unit2.用介词或介词短语填空。 They were talking the phone . I was he barbers chair . The boy was walki