英语人教版八年级下册语法课：过去进行时.docx

Grammar: the Past Progressive Tense【学习目标】 1.掌握过去进行时（the past progressive tense）的结构 (be doing)，时间标志和句型转换。 2.能正确运用过去进行时进行交流。【重点】：1. 过去进行时的结构及用法。2. when和while的区别。【难点】：1. 过去进行时与现在进行时的区别。Teaching produces1. Lead-in : Learn the past progressive tense by the present progressive tense. -What is he doing now?- He is playing soccer now. -What was he doing at three oclock yesterday afternoon?-He was playing football at three oclock yesterday afternoon.2. Learn the past progressive tense: 1) 用法：表示过去某个时刻正在进行的动作。（或过去一段时间正在进行的动作） 2）结构：be (was/were) + doing主语 + was/were + doing sth. + 时间状语提问：What was /were+ 主语+doing (+时间状语)? 3） 时间状语词: at 8 oclock last night, this time yesterday ,at 5:00 yesterday afternoon, at that time, from six to nine yesterday，when/while+句子3. Practice: 1) Talk about the pictures. -What was she doing at this time yesterday? -She was teaching English at this time yesterday. 2) Practice with “when/ while” Tom was having breakfast when Jim went to school.=While Tom was having breakfast , Jim went to school.4. Pair work: Talk about the pictures with “when/while”. -What was he/ she doing when you saw him/her?-He/ She was +v-ing when I saw him/ her.5. Summary: 1) 用法：表示过去某个时刻正在进行的动作。（或过去一段时间正在进行的动作） 2）结构：be (was/were) + doing主语 + was/were + doing sth. + 时间状语提问：What was /were+ 主语+doing (+时间状语)? 3）时间状语词: at 8 oclock last night, this time yesterday ,at 5:00 yesterday afternoon, at that time, from six to nine yesterday，when/while+句子4) 现在进行时与过去进行时的区别 Exercise: Fill in the blanks with the right form of the given words.5) when 和while的用法区别Exercise: Fill in the blanks with “when/while”.6. Homework: 完成导学案“探究案”。附练习：【探究案】1 语法探究：过去进行时态 （1） 概念：表示_某一段时间或某一时刻_ 发生的动作。（2） 常用时间状语： 昨天的这个时候 (at this time yesterday) 在那时 (then) 在昨晚八点钟 (at eight last night ) 昨天早上七点钟 (at seven yesterday morning ) 昨天早上八点至十点( from eight to ten yesterday eight) when 或 while 引导的时间状语从句（3） I was doing the dishes when my mother came home.否定句_一般疑问句_肯定回答_ 否定回答_划线部分提问_（4） while 与when 同义句 When my mother come back, I was doing my homework. = _I was doing my homework, my mother come back.（5） 即时练习I. 用所给词的适当形式填空。1. I _ (draw) when he came in. 2. He was waiting for the bus when it _(begin) to rain.3. Tom ran to the bus stop in a hurry but he still _(miss) the bus.4. The telephone didnt go off so I _(not pick) it up. 5. Look ! Mary _( clean) the room.6. They _(move) to Pairs last month.7. We _ (wash) our clothes at six yesterday evening. 8. He _(read) a novel from 8 to 12 yesterday morning.9. Who _ he _ (wait) for at five oclock yesterday afternoon?10. She _(do) her homework while her mother _(cook) at that time. 11. What _(happen) to the teacher yesterday? 12. I _ (shop) when my friend saw me.13. What _ they _(do) at this time yesterday?II. 句型转换。 1.We were listening to the teacher carefully when she came in. (对画线部分提问) _ _ you _ when she came in?2. John was sleeping at ten last night. (对画线部分提问)_ _ John _at ten last night?3. The students were having a PE class at four yesterday afternoon. (改为否定句) The students_ _a PE class at four yesterday afternoon.4. David was in the library when his father found him. (对画线部分提问)_ _ David when his father found him?5. We arrived at the airport when it was raining heavily. (对画线部分提问)_ _ you _ at the airport?6.The cat was climbing up the tree when the police reached that village. (一般疑问句）_ the cat _ up the tree when the police reached that villag