一、 概念和用法：過去進(jìn)行時(shí)表示在過去某一時(shí)刻或某一段時(shí)間內(nèi)進(jìn)行或發(fā)生的動(dòng)作。其形式為was /were + V-ing。常與表示過去的時(shí)間狀語連用，如：last night, last Saturday等；或者與when, while, as引導(dǎo)的過去時(shí)間狀語連用。例如：
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? 上周日他一整天都在研究什么？
一般過去時(shí)表示過去某個(gè)時(shí)間里發(fā)生的動(dòng)作或狀態(tài)；過去習(xí)慣性、經(jīng)常性的動(dòng)作、行為；過去主語所具備的能力和性格?；窘Y(jié)構(gòu)：主語+謂語(動(dòng)詞過去式）+句子其他成分；主語+was/were+形容詞/名詞/介詞短語+過去時(shí)間；否定形式①was/were+not;②在行為動(dòng)詞前加didn't，同時(shí)還原行為動(dòng)詞；一般疑問句Did+主語+do+其他。

二、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。如：
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))

三、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)。例如：
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)

四、 通常不能用于過去進(jìn)行時(shí)的動(dòng)詞主要有：agree, be, 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。

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
特殊疑問句：特殊疑問詞+was/were+主語+doing+其它

一般過去時(shí)
一般過去時(shí)表示過去某個(gè)時(shí)間發(fā)生的動(dòng)作或存在的狀態(tài)。常和表示過去的時(shí)間狀語連用。如:last year, yesterday,once等

一般過去時(shí)由動(dòng)詞的過去式表示,動(dòng)詞be有was, were兩個(gè)過去式,was用于第一、三人稱單數(shù),were用于其他情況。在構(gòu)成否定及疑問句時(shí),一般都借助助動(dòng)詞did, 動(dòng)詞be有其獨(dú)特的疑問及否定形式(基本上和一般現(xiàn)在時(shí)一致)。

1）在確定的過去時(shí)間里所發(fā)生的動(dòng)作或存在的狀態(tài)。
時(shí)間狀語有：yesterday, last week, an hour ago, the other day, in 1982等。
Where did you go just now?

2）表示在過去一段時(shí)間內(nèi)，經(jīng)常性或習(xí)慣性的動(dòng)作。
When I was a child, I often played football in the street.
Whenever the Browns went during their visit, they were given a warm welcome.

3）句型：
It is time for sb. to do sth "到……時(shí)間了" "該……了"
It is time sb. did sth. "時(shí)間已遲了" "早該……了"
It is time for you to go to bed. 你該睡覺了。
It is time you went to bed. 你早該睡覺了。
would (had) rather sb. did sth. 表示'寧愿某人做某事'
I'd rather you came tomorrow.

4) wish, wonder, think, hope 等用過去時(shí)，作試探性的詢問、請求、建議等。
I thought you might have some. 我以為你想要一些。

比較：
一般過去時(shí)表示的動(dòng)作或狀態(tài)都已成為過去，現(xiàn)已不復(fù)存在。
Christine was an invalid all her life.
(含義：她已不在人間。)
Christine has been an invalid all her life.
(含義：她現(xiàn)在還活著)
Mrs. Darby lived in Kentucky for seven years.
(含義：達(dá)比太太已不再住在肯塔基州。)
Mrs. Darby has lived in Kentucky for seven years.
( 含義：現(xiàn)在還住在肯塔基州，有可能指剛離去)

注意：用過去時(shí)表示現(xiàn)在，表示委婉語氣。
1）動(dòng)詞want, hope, wonder, think, intend 等。
Did you want anything else?
I wondered if you could help me.
2）情態(tài)動(dòng)詞 could, would.
Could you lend me your bike?
?