八年級英語Unit5Whatwereyoudoingwhentherainstormcame（Period3SectionAGrammarFocus—4c）學案設計.docx

Unit5Whatwereyoudoingwhentherainstormcame?Period3SectionAGrammarFocus4c【課型】語法課學習目標1.能聽、說、讀、寫下列單詞和短語:icy,kid,have a look2.能掌握when與while引導時間狀語從句時的區(qū)別。3.能熟練掌握和運用過去進行時的構成和用法。(1)肯定句:主語+was/were+doing+時間狀語或從句(2)否定句:主語+was/were+not+doing+時間狀語或從句(3)一般疑問句:Was/Were+主語+doing+時間狀語或從句?(4)特殊疑問句:特殊疑問詞+was/were+主語+doing+時間狀語或從句?學習過程【課前預習】根據(jù)所給漢語提示完成句子。1.The black clouds were making the sky very dark.Please (打開) the light.2.Let me (看一看) at your family photo.3.The kid (在開玩笑) now.You cant believe him.4.She was late for the competition (由于) the car accident.5.While Linda was sleeping,Jenny was Mary (幫助) her homework.6.My father went out (立刻) to have a look at the car accident.7.The streets are (覆蓋著冰的) after the heavy snow.【課堂探究】探究:過去進行時(1)過去進行時的構成過去進行時由“”構成,當主語是第一人稱單數(shù)或第三人稱單數(shù)時be動詞用,當主語是其他的人稱和數(shù)時be動詞用。(2)過去進行時的句式肯定句:主語+v.-ing+其他.否定句:主語+v.-ing+其他.一般疑問句:+主語 +v.-ing+其他?肯定回答:Yes,主語+was/were.否定回答:No,主語+wasnt/werent.特殊疑問句:+主語+v.-ing +其他?提示:當特殊疑問詞作主語時,用“特殊疑問詞+was/were+v.-ing +其他?”的形式。(3)過去進行時的用法過去進行時表示,時間狀語往往是表示過去的某一時間點,如at this time yesterday,at+時刻+yesterday/last night,when sb.did sth.等時間狀語或時間狀語從句。如:I was playing football at this time yesterday.What were you doing at 8:00 this morning?When I called him,he was having dinner.過去進行時還表示過去某段時間內(nèi)。They were waiting for you the whole afternoon yesterday.I was doing my homework from 6:30 to 8:00 yesterday evening.(4)when與while引導的時間狀語從句when引導的時間狀語從句:說明一個動作發(fā)生時,另一個動作;也可表示正在進行某一動作時,另一動作了。When the teacher came into the classroom,we were reading English.當老師走進教室時,我們正在讀英語。When Kate was flying a kite,she found a wallet lying on the ground.當凱特正在放風箏時,她發(fā)現(xiàn)地上有個錢包。while引導的時間狀語從句:表示某個動作正在進行的同時,另一動作也在進行之中,這時主從句都用時,有對同類的兩個動作進行對比的意味;也可表示某個動作正在進行時,另一動作發(fā)生了(該動作用時)。While I was playing the piano,she was dancing.當我在彈鋼琴時,她在跳舞。While she was reading,the telephone rang.當她正在看書時,電話鈴響了。(5)一般過去時與過去進行時的區(qū)別過去進行時強調(diào),一般用到的動詞是表示具體行動,動作可延續(xù),同時用到的時間狀語表示的范圍要小且具體。而一般過去時著重表示,基本上是一個結束了的動作。表示過去狀態(tài)、抽象、不表具體動作行為的動詞不能用過去進行時,但可以用一般過去時。如:He was mending his daughters bike this morning.(強調(diào)動作正在進行)He mended his daughters bike this morning.(表明動作做過,并結束了)【課堂練習】一、單項選擇。1.John was cleaning his room Mary turned on the radio.A.whenB.whileC.sinceD.until2.Mary left the house while John the piano.A.playedB.playingC.is playingD.was playing3.Kate was helping make lunch while Jim .A.bought a drinkB.was playing gamesC.arrived homeD.was leaving the house4.He was late for class the car accident.A.thanks forB.becauseC.because ofD.thanks to二、用括號內(nèi)所給單詞的適當形式填空。1.He (sleep) from 12:30 p.m.to 2:00 p.m.yesterday.2.At 8:10 yesterday,they (have) an English class.3.When my mom (buy) a drink,I (take) photos.4.While we (shop),Tom took the car to the car wash.5.When it (begin) to rain,Ben was helping his mom make dinner.6.I went out right away (look) at what happened when I heard a strange noise.7.The roads were (ice) because of the heavy snow from night before.8.The car was in bad shape from (hit) a tree.9.(lucky),the driver and passengers were fine in the bus accident.10.It began to snow (heavy) at 9:00 last night.【自我反思】1.我的收獲:2.我的易錯點:參考答案課前預習1.turn on2.have a look3.is kidding4.because of5.helping;with6.right away7.icy課堂探究探究:(1)was/were+v.-ing;was;were(2)was/werewas not(wasnt)/were not(werent)Was/Were特殊疑問詞;was/were(3)過去某一時刻正在進行的動作正在進行的動作