另外when引导的从句放在主句后面时，常
常表示“正好此时”， “突然” 的意思。 如：I was doing my homework when it began to rain.
过去进行时与一般过去时比较
1.过去进行时表示在过去某个特定时间内正
在进行的动作，强调动作的持续性；而一般 过去时表示过去曾经发生过某事，是个单纯 的过去事件，一个结束了动作。试比较： My brother was downloading some music yesterday afternoon. （昨天下午一直在下载，可能仍没结束） My brother downloaded some music yesterday afternoon. (已下载完了）
2）情态动词
could, would. Could you lend me your bike?

1.
注意：
表示一系列的动作，尽管有先后，都用一 般过去时，最后两个动词之间用and连结。 如： He opened the door, rushed out and then disappeared. 2. 注意在语境中理解“我刚才/原来还不 ……”。如： —Your phone number again? I didn’t quite catch it. —It’s 2566666.

。
TRANSLATE THE FOLLOWING
SENTENCES

1.Christine was an actress all her life. 2.Christine has been an actress all her life. 3.Mrs. Darby lived in Pairs for seven years. 4.Mrs. Darby has lived in Pairs for seven years.
一般过去式& 过去进行时
一般过去时
一般过去时表示过去某个时间发生的动 作或存在的状态。句子的谓语要用动词 的过去式
1）在确定的过去时间里所发生的动
作或存在的状态。 时间状语有： yesterday, last week, an hour ago, the other day, just now, in 1982等。 Where did you go just now?
2.过去进行时可以表示在过去同一时间两个动
作同时进行，用于对比。与之常用的时间副词 有：while, as 而一般过去时没有这种用法。 例如： Paul was doing exercise while Susan was fixing the car. As Michel was visiting Paris, Robert was teaching English classes in Beijing.



2）表示在过去一段时间内，经常性或
习惯性的动作。 When I was a child, I often played football in the street.
注：表示过去经常发生的动作还可用
used to 和would。如： He used to smoke a lot, but he doesn’t now. Whenever we were in trouble, he would help us.
I
intended to have joined their games. —I had intended to join their games.

规则动词过去式的构成
一般动词原形末尾Байду номын сангаас-ed。如：
look→looked, stay→stayed ; 以e结尾的动词只加-d。如：hope→hoped, live→lived; 末尾只有一个辅音字母结尾的重读闭音节的动 词，应先双写这个辅音字母，再加-ed. 如：stop→stopped, plan(计划) →planned; 结尾是“辅音字母+y”的动词，先将y改为i,再 加-ed. 如：study→studied, carry→carried.
2
与一般过去时连用。 过去进行时常与一般过去时连用。 when引导的从句表示一个短暂的时间 点，谓语用一般过去时，while引导的 句子表示一段持续的时间，谓语用过去 进行时。
E.g：My
son fell while he was riding his bicycle and hurt himself． When I got to the top of the mountain， the sun was shining． Laura was making coffee while Peter was washing his car in the garage．
4)
wish, wonder, think, hope 等用 过去时，作试探性的询问、请求、建议 等。 I thought you might have some. 我以为你想要一些。 I wondered if you could lend me your bicycle?
5)在时间、条件、方式、让步等状 语从句中，用一般过去时代替过去 将来时
过去进行时
一、
概念：过去进行时表示在过去某 一时刻或某一段时间内进行或发生的动 作。其形式为was /were + V-ing。
用法
1.表示过去某一时刻或某一段时间正在进行的
动作。 常用的时间状语有： this morning，the whole morning，all day， from nine to ten，this time yesterday， at that time, at six o’clock last night, from six to ten等。如： This time yesterday，I was playing computer games with my brother． What were you doing at 9 last night? It was raining hard when we left the cinema．
She
said she would come if I promised to wait for her. He said he would not go if it rained.
注意：
用过去时表示现在，表示委婉
语气。 1）动词want, hope, wonder, think, intend 等。 Did you want anything else? I wondered if you could help me.
3）句型：
It is time for sb. to do sth "到 ……时间了" "该……了“ It is time sb. did sth. It is time sb. should do sth.
would
(had) rather sb. did sth. 表示'宁愿某人做某事' I'd rather you came tomorrow.
特别说明
有些动词的过去时，如：expect,
hope, intend, plan, want 等后接不定式的完成 时；或它们的过去完成时接不定式的一般 式，都可表示过去未曾实现的意图、打算 或希望。如： I hoped to have been invited to his wedding party. —I had hoped to be invited to his wedding ceremony.