[10-20 18:09:40] 来源：http://www.67xuexi.com 初二英语 阅读：85161次
A year ago we were living in Shanghai. My mother fell ill and passed away.
一年前我们住在上海。我的母亲病了并在那里去世。
The teacher was giving us a lesson when Tom walked into the room.
当汤姆走进教室时，老师在给我们上课。
While we were having supper, all the lights went out.我们正吃饭的时候，灯熄灭了。
He was reading while she was setting the table.她放桌子时，他在读书。(互为时间背景)
It was getting dark. The wind was rising.天渐渐黑下来了。风势增强了。(互为背景)
②过去进行时表示过去频繁发生的习惯性动作，常与always, continually, frequently等词连用。例如：
The old man was always mislaying his keys.这位老人总是忘记把钥匙放在什么地方了。
He was continually asking questions.他老是问问题，没个完。
The two brothers were frequently quarrelling.这两个兄弟经常吵架。
12.情态动词could
could表示说话人能,可以,同意,准许,以及客观条件许可,could是can 的过去式。
He could play the violin when he was seven.当他七岁时，就会拉小提琴。
Could they speak French? 他们会说法语吗?
Yes, they could. /No, they couldn't.是的，他们会。/不，他们不会。
He could help us at all.他完全可以帮助我们。
Could you help me, please? 请问,你能帮助我吗?
13.be动词+形容词
be动词+形容词：He is extremely patient.
英语常见系动词有：be, look, become, get, seem, turn, grow, appear, taste, feel, smell等，系动词一般后面跟形容词或名词作表语。例如：
The lesson was interesting.那一课很有趣。
He looks ill.他看起来病了。
The soup tastes delicious.汤的味道很美。
She seems very quiet. 她看起来很安静。
Mike is my younger brother.迈克是我弟弟。
Jim became a doctor.吉姆当上大夫了。
14.句型too…to…和not…enough…的区别
too…to…"太……以至不(能)"。例如：
The girl is too short to reach the book on the top of the shelf.
那个女孩太矮，她够不着放在书架顶上的书。
It's too cold for children to play ourselves.天气太冷，孩子们不能在外面玩。
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