表示過去某時正在進行的動作(不強調是否完成)。(過去進行時具體用在什么地方，看后面)
[編輯本段]過去進行時的主要用法
1.表示過去某一時間內(正在)進行的動作
如：I was doing my homework at 9 p.m. last Sunday.
2.表示一動作正在進行時，另一動作同時正在進行.
(1)用while連接(while只接doing)
例:My mother was cooking while I was doing my homework.(可以持續動作時態一致)
(2)when表示(when可以接doing或did，when后動作時間長，用doing，時間短，用did)
例:I was doing my homework when my mother came in.(間接表達了具體時間)
3.重復的動作
When he worked here, John was always making mistakes.
4.表示過去將要發生的動作
She told us Mr.Lee was arriving here.
5.用于故事，以提供其時間背景
6.表示禮貌
[編輯本段]常用的時間狀語
this morning, the whole morning, all day yesterday, from nine to ten last evening, when, while
My brother fell while he was riding his bicycle and hurt himself.
It was raining when they left the station.
When I got to the top of the mountain, the sun was shining.
[編輯本段]典型例題
(1) Mary _C_ a dress when she cut her finger.
A. made B. is making C. was making D. makes
答案C. 割傷手指是已發生的事情，應用過去時。同 時，when表時間的同時性，"瑪麗在做衣服時"提供事情發生的背景，因此用過去進行時。
(2) As she _b__ the newspaper, Granny ___ asleep.
A.read; was falling B. was reading; fell C. was reading; was falling D. read;fell
答案B. 句中的as = when, while，意為"當……之時"。描述一件事發生的背景時，用過去進行;一個長動作發生的時候，另一個短動作發生。句意為 "在她看報紙時，奶奶睡著了。"句中的 fell (fall的過去時)，是系動詞，后跟形容詞，如：fall sick。 過去進行時的基本用法:表示過去某個時刻或時間正在進行過持續進行的動作,句中往往需要有時間狀語來表示這一特定的時間. What were they doing just now? 他們剛才在干什么?
[編輯本段]具體概念
一、 概念和用法：過去進行時表示在過去某一時刻或某一段時間內進行或發生的動作。其形式為was /were + V-ing。常與表示過去的時間狀語連用，如：last night, last Saturday等;或者與when, while, as引導的過去時間狀語連用。例如： We were watching TV from seven to nine last night. 昨天晚上七點到九點的時候我們在看電視。 What was he researching all day last Sunday? 上周日他一整天都在研究什么?
二、 過去進行時可以表示在過去某個時間點發生的事情。時間點可以用介詞短語、副詞或從句來表示。如： What was she doing at nine o‘clock yesterday? 昨天晚上九點她在做什么? (介詞短語表示時間點) When I saw him he was decorating his room. 當我看見他的時候他正在裝飾房間。 (when從句表示時間點)
三、 在復合句中，如果主要動作和背景動作都是延續的或同時發生的，那么主從句的動詞都可用過去進行時。例如： While he was waiting for the bus, he was reading a newspaper.他邊等車邊看報。 (兩個動作都是延續的) He was cleaning his car while I was cooking. 他擦車時我在做飯。(兩個動作同時進行)
四、 通常不能用于過去進行時的動詞主要有：agree, is,am,are, believe, belong, care, forget, hate, have(擁有), hear, know, like, love, mean, mind, notice, own, remember, seem, suppose, understand, want, wish等。
例如： 誤：I was knowing the answer. 正：I knew the answer. 我知道答案。
誤：I wasn‘t understanding him. 正：I didn‘t understand him. 我不明白他的意思。
[編輯本段]句型
肯定句：主語+was/were+doing+其它
否定句：主語+was/were+not+doing+其它
一般疑問句及答語：Was/Were+主語+doing+其它 答語：Yes,I was./No,I wasn’t.
特殊疑問句：特殊疑問詞+was/were+主語+doing+其它
過去進行時vs一般過去時
都強調過去發生的事
進行時強調過程，不一定完成
過去時強調事件，一定完成
p,s表示一個動作正在進行時，另一個動作發生了
如：He played when I was studying.
不用于進行時的動詞
感官動詞：hear,see,notice,feel,taste……
表示態度感情的動詞：like,love,hate……
表心理狀態：feel,want,prefer……
表占有：own,have,……
表存在狀態和持續：look,owe,be……
專項練習
1. While we __________ (wait) for the bus, a girl __________ (run) up to us.
2. I __________ (telephone) a friend when Bob __________ (come) in.
3. Jim __________ (jump) on the bus as it __________ (move) away.
4. We __________ (test) the new machine when the electricity __________ (go) off.
5. She __________ (not want) to stay in bed while the others ________________ (all, work) in the fields.
6. While mother ________ (put) Cathy to bed, the door bell ________ (ring).
1. were waiting; ran 2. was telephoning; came 3. jumped; was moving 4. was testing; went 5. didn‘t want; were all working 6. was putting; rang
