過去進(jìn)行時(shí)語法詳解

（1）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。

（2）結(jié)構(gòu)：was/were +doing (現(xiàn)在分詞）

（3）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?

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。

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。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))

➂ 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)

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