12. hear 听到

　　Can you hear someone knocking at the door? 你听到有人敲门了吗?

　　(1)hear of 听说 , 后接表示人或物的词

　　I have never heard of him before. 我以前从来没有听说过他。

　　( 2 ) hear about 听说, 后接表示事件的名词

　　I’ve just heard about his illness. 我刚刚听说他生病的事。

　　Have you heard about the accident ? 你听说了那场事故吗?

　　(3)hear from 收到某人的来信

　　I heard from my daughter in New York yesterday. 我昨天收到在纽约的女儿的来信。

　　13. 主语 + be + one of the + 形容词最高级 + 复数名词 + in / of 短语。

　　…… 是……中最……的……之一.

　　This was one of the most important events in modern American history.这是美国历史上最重要的事件之一。

　　Xiamen is one of the most beautiful cities in China. 厦门是中国最漂亮的城市之一。

　　13. experience

　　(1)名词经验, 不可数名词 ; 经历, 体验, 可数名词

　　Have you had any experience of fishing? 你有钓鱼的经验吗?

　　Could you tell us about your experiences in Africa? 你能给我们谈谈你在非洲的经历吗?

　　(2)动词 经历, 感觉

　　The children experienced many difficulties this time. 这次孩子们经历了许多困难.

　　experienced 形容词 有经验的

　　be experienced in/at doing sth. = have much experience in/at doing sth. 做某事很有经验.

　　She is an experienced teacher. 他是一个经验丰富的教师。

　　He is very experienced in/at repairing cars. 他修车很有经验。

　　14. as … as … 和…… 一样… 两个as之间用形容词或副词的原形。

　　He works as carefully as she. 他和她一样工作认真。

　　She is as tall as her mother. 她和母亲一样高。

　　not as… as… 不如某人/某物…

　　He isn’t as / so old as he looks . 他不像看起来那么老。

　　She doesn’t run as / so fast as her brother. 她不如她哥哥跑得那么快。

　　15. have fun = have a good/great/wonderful time = enjoy oneself 玩得开心，过得愉快

　　Did you have fun at the party? 昨天在派对上玩的开心吗?

　　= Did you have a good/great/wonderful time ?

　　= Did you enjoy yourself ?

　　have fun doing sth. 开心做某事

　　I’m just having fun playing the guitar . 我正开心的弹吉他呢。

　　16. accident 事故, 意外遭遇

　　He was killed in an accident. 他死于一起意外事故.

　　traffic accident 交通事故

　　Many people die in traffic accidents every year. 每年有很多人死于交通事故。

　　by accident 偶然, 意外地

　　We met at the airport by accident . 我们偶然在机场遇见。

　　18. think about 考虑 (某个计划 )

　　They are thinking about moving to Beijing. 他们考虑搬去北京。

　　think of 认为 What do you think of the movie?= how do you like the movie?你认为这部电影怎么样?

　　think over 仔细思考

　　We need a few days to think over this matter. 我们需要几天时间来考虑这个事情。

　　19. 感叹句

　　what 引导的感叹句

　　(1)What a beautiful girl (she is )! 多么美的姑娘呀 !

　　(2)What a clever boy ( he is )! 多么聪明的男孩呀 !

　　(3)What interesting pictures ( they are )! 多么美的图片呀 !

　　(4)What tall buildings ( they are )! 多么高的楼呀 !

　　(5)What delicious food ( it is ) ! 多么可口的食物呀 !

　　(6)What bad weather ( it is ) ! 多么坏的天气呀 !

　　规律：what + ( a/an ) + 形容词 + 名词 ( + 主语 + 谓语) + !

　　名词为不可数名词或复数名词时, 形容词前面不能有a/an。

　　how 引导的感叹句

　　(7)How heavy the box is! 多么重的箱子呀!

　　How fast he runs! 他跑得多快呀!

　　(8)How careful the girl is! 多么细心的姑娘呀!

　　How well she plays the piano! 她的钢琴弹得多好呀!

　　20.过去进行时

　　过去进行时的用法

　　(1)过去某一时刻正在进行的动作。

　　What were you doing at 8:30 this morning? 今天早上8点半你正在做什么?

　　When I called him, he was having dinner. 当我打电话给他时，他正在吃饭。

　　(2)过去某段时间正在进行的动作。

　　What were you doing from seven to nine yesterday? 你昨天7点到9点在做什么?

　　I was reading the whole morning yesterday. 我昨天一整个早上都在看书。

　　过去进行时的构成

　　(1)肯定句：主语 + was / were +动词ing形式 + 时间状语。

　　(2)否定句：主语 + was / were + not + 动词ing形式 + 时间状语。

　　(3)疑问句：was / were + 主语 + 动词ing形式 + 时间状语 ?

　　肯定回答：Yes , 主语 + was / were .

　　否定回答：No, 主语 + was / were + not .