新概念英語第一冊(cè)（美音版）Lesson 117 Tommy's breakfast

[詞匯]
dinning room(hall) 飯廳
coin n. 硬幣
mouth n. 嘴
swallow v. 吞下
later adv. 后來
toilet n. 廁所，盥洗室

過去進(jìn)行時(shí)和過去完成時(shí)
現(xiàn)在進(jìn)行時(shí)，一般過去時(shí)，現(xiàn)在完成時(shí)，過去進(jìn)行時(shí)，過去完成時(shí)
過去進(jìn)行時(shí)表示的概念
1 在過去某個(gè)特定的時(shí)間正在進(jìn)行或發(fā)生的動(dòng)作。
2 當(dāng)過去的一個(gè)動(dòng)作發(fā)生的時(shí)候另外一個(gè)動(dòng)作正在進(jìn)行。
結(jié)構(gòu)：
主語+ was（were）+ doing
I was sleeping at eight o'clock yesterday morning.
They were swimming in the river at three o'clock yesterday afternoon.
at this time 這個(gè)時(shí)候
I was walking in the street at this time last week.
I was leaving the house when he arrived.
when 當(dāng)……的時(shí)候
while 當(dāng)……的時(shí)候（強(qiáng)調(diào)兩個(gè)動(dòng)作的同時(shí)進(jìn)行）
just as 正當(dāng)……
I cut myself while I was shaving.
I cut myself badly while I was shaving.

過去完成時(shí)：過去某個(gè)特定的時(shí)間之前動(dòng)作已經(jīng)完成。過去兩個(gè)動(dòng)作的比較，發(fā)生在前面的是過去完成時(shí)，后面的是一般過去時(shí)。
結(jié)構(gòu)：
主語 + had + 動(dòng)詞的過去分詞
I had read five books by the end of last year.
term
learnt
The students had learnt two thousand words by the end of last term.
before, after
Mr.Smith bought a new car after he had sold his old car.
We had had dinner before they arrived.
When I was leaving the house he arrived.
When I was having breakfast, someone knocked at the door.
ring, rang
The telephone rang just as I was opening the door.
slip 滑倒
hurt 傷著
get off the bus 下公共汽車
When she was getting off the bus, she slipped and hurt herself.
My wife was cooking in the kitchen while I was working in the garden.