人教版英語八年級下冊Unit 5What were you doing when the rainstorm came? Section A （4a-4c）第3課時(shí)語法教學(xué)設(shè)計(jì) 課題Grammar Focus：Learn to use questions and statements with the past progressive tense.教學(xué)目標(biāo)Teach grammar: the past progressive tense過去進(jìn)行時(shí)用法教學(xué)重難點(diǎn)Learn to use questions and statements with the past progressive tense.教學(xué)過程Lead-in （Look at the picture） What?was?Dave?doing?at?nine?o’clock?yesterday? Dave was practicing playing the piano at home. 過去進(jìn)行時(shí) Learn Step 1 Grammar Learning 讀一讀，感知過去進(jìn)行時(shí)用法 What was Jenny doing while Linda was sleeping? While Linda was sleeping , Jenny was helping Mary with her homework. What were you doing at eight last night? I was taking a shower. What was she doing at the time of the rainstorm? She was doing her homework. What was he doing when the rainstorm came? He was reading in the library when the rainstorm came.What was Ben doing when it began to rain heavily? When it began to rain, Ben was helping his mom make dinner. Step 2 Grammar learning 定義：過去進(jìn)行時(shí)，是表示過去某個(gè)具體時(shí)刻正在進(jìn)行的事情或動(dòng)作。 結(jié)構(gòu)：was/were?+doing?(現(xiàn)在分詞） 用法：1.過去進(jìn)行時(shí)表示過去某段時(shí)間內(nèi)持續(xù)進(jìn)行的動(dòng)作或者事情。常用的時(shí)間狀語 this?morning,?the?whole?morning,?all?day?yesterday,?from?nine?to?ten?last?evening,? when,?while 2.過去進(jìn)行時(shí)可以表示在過去某個(gè)時(shí)間點(diǎn)發(fā)生的事情。時(shí)間點(diǎn)可以用介詞短語.副詞或從句來表示。 What?was?she?doing?at?nine?o’clock?yesterday? 昨天晚上九點(diǎn)她在做什么？ (介詞短語表示時(shí)間點(diǎn)) When?I?saw?him?he?was?decorating?his?room. 當(dāng)我看見他的時(shí)候他正在裝飾房間。 (when從句表示時(shí)間點(diǎn)) 3.在復(fù)合句中，如果主要?jiǎng)幼骱捅尘皠?dòng)作都是延續(xù)的或同時(shí)發(fā)生的，那么主從句的動(dòng)詞都可用過去進(jìn)行時(shí)。 While?he?was?waiting?for?the?bus,?he?was?reading?a?newspaper. 他邊等車邊看報(bào)。 (兩個(gè)動(dòng)作都是延續(xù)的) He?was?cleaning?his?car?while?I?was?cooking. 他擦車時(shí)我在做飯。 (兩個(gè)動(dòng)作同時(shí)進(jìn)行) We?were?watching?TV?from?seven?to?nine?last?night. 昨天晚上七點(diǎn)到九點(diǎn)的時(shí)候我們在看電視?！　? What?was?he?researching?all?day?last?Sunday? 周日他一整天都在研究什么？ My?brother?fell?while?he?was?riding?his?bicycle?and?hurt?himself. 我哥哥騎自行車的時(shí)候從車上摔下來，受傷了。 It?was?raining?when?they?left?the?station. 他們離開車站的時(shí)候天正在下雨。 When?I?got?to?the?top?of?the?mountain,?the?sun?was?shining. 當(dāng)我到達(dá)山頂?shù)臅r(shí)候，陽光燦爛。 過去進(jìn)行時(shí)特殊用法 (1)常用于介紹故事的背景。 Once an Arab was traveling in the desert. 從前, 有個(gè)阿拉伯人在沙漠中旅行。 (2) when引導(dǎo)的從句表示一個(gè)短暫的時(shí)間點(diǎn),謂語動(dòng)詞用一般過去時(shí), 主句用一般過去時(shí)或過去進(jìn)行時(shí)； while引導(dǎo)的從句表示一段持續(xù)的 時(shí)間, 主句為一般過去時(shí), 從句謂語動(dòng)詞用過去進(jìn)行時(shí)。 I was writing a letter when he came in. 當(dāng)他進(jìn)來時(shí)，我正在寫信。 The telephone rang while she was washing. 當(dāng)她正在洗衣服時(shí)，電話響了 (3) 過去進(jìn)行時(shí)常與always, continually等連用, 表示過去反復(fù)發(fā)生 的行為動(dòng)作，帶有贊美、厭煩等感情色彩。 He was continually asking her questions. 他一直在問她問題。 The boy is always helping them when people ask him for help. 當(dāng)人們向男孩求助時(shí)，他總是幫助他們。 過去進(jìn)行時(shí)的各種句式: 肯定句: 主語+ was / were + 動(dòng)詞-ing形式 I was reading at this time yesterday. 昨天這個(gè)時(shí)候我正在看書。 否定句:主語+ was / were + not + 動(dòng)詞-ing形式 I wasn’t reading at this time yesterday. 昨天這個(gè)時(shí)候我沒在看書。 疑問句: (1)一般疑問句: was / were + 主語+ 動(dòng)詞-ing形式。 肯定回答: Yes, 主語+ was / were. 否定回答: No, 主語+ wasn’t / weren’t. —Were you reading at this time yesterday? 昨天這個(gè)時(shí)候你在看書嗎？ — Yes, I was. / No, I wasn’t. 是的, 我在看。/ 不, 我沒在看。 (2)特殊疑問句: 疑問詞+ was / were + 主語+ 動(dòng)詞-ing形式。 What were you doing at this time yesterday? 昨天這個(gè)時(shí)候你在做什么？ What was he researching all day last Sunday? 上周日他一整天都在研究什么？ Step3 完成教材 (4a-4c) (4a) Look at the table and write sentences with both while and when. While John was taking photos, Mary bought a drink. John was taking photos when Mary bought a drink. While John was playing the piano, Mary left the house. John was playing the piano when Mary left the house. While John was cleaning his room, Mary turned on the radio. John was cleaning his room when Mary turned on the radio. While John was shopping, Mary took the car to the car wash. John was shopping when Mary took the car to the car wash. (4b) Fill in the blanks with was, were, when or while. (4c) What were you doing at these times last Sunday? Fill in the chart. Then ask your partner. Step4 Homework 1.Recite the words and expression of this part. 2.Learn to use questions and statements with the past progressive tense.

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