unit 3 pardon me！ 一. 教学内容： unit 3 pardon me！lesson 17~lesson 20 1. 重点单词。 n. pardon mistake greeting custom society culture v. pardon giggle forgive adj. confused confusing unusual 2. 重点短语。 make a mistake 犯错误 eat up 吃光 as soon as 一……就…… again and again 再三地；反复地 3. 交际用语。 apologise（道歉） pardon？ excuse me！ i beg your pardon. i’m sorry. no problem. don’t worry about it！ never mind. similarities and differences.（相同与不同） your finger has the same dna as your hair. li ming looks like his father. china is very different from australia. good manners in north america are different from good manners in china. western customs are different（from chinese customs.） 二. 重点、难点解析及词语辨析： lesson 17 1. mistake n. 犯错, 误会。复数形式：mistakes ① don’t be afraid of making mistakes.不要怕犯错。 ② he hit me by mistake. 他误打了我。 vt. 错认，误会。三单形式：mistakes； v.-ing形式：mistaking；过去式：mistook；过去分词：mistaken。 ③ i mistook the house.我认错了房子。 ④ i mistook you for an american.我误认为你是一个美国人。 2. paid 是pay的过去式 pay vt.（钱）支付，花费；vi. 付款 ①i paid ten dollars for the books. 那些书花了我十美元。 ② i have already paid off the money of the car. 我已经把车款付清了。 拓展 pay attention to + n./v-ing 注意…… ③ pay more attention to your work. 要多注意你的工作。 pay a visit to=pay...a visit访问 ④ i paid a visit to him yesterday.我昨天访问了他。 比较：＂花费＂种种 sb. pay some money for sth.某人为某物付多少钱 sth. cost sb. some money某物花去某人多少钱 ⑤ this coat cost me 6.这件上衣花了我6英镑。 sth. takes sb. some time. =it takes sb. some time to do sth. 做某件事花费某人多少时间 ⑥ the job took us a week.做这件事花费了我一周的时间。 sb. spend some money/time on sth./（in）doing sth. 3. too much过多的，太多的，用在不可数名词前。 ①i drank too much beer last night. 昨天晚上我喝啤酒喝得太多了。 ②too much was happening all at once. 同时发生的事情太多了。 拓展： much too中，much用在too前来加强语气， 后跟形容词或副词；too many后跟可数名词或集合名词。 ③ you are much too kind to me. 你对我实在太好了。 ④ there are far too many people here. 这里人实在太多了。 4. one pron. & num. 拓展： ※ one除作数词外，还可作代词，代替上文中出现的单数 名词（人或物）以避免重复。如： ①i have two bags. one is big and one is small. 我有两个包。一个大的，一个小的。 ※ one代替可数名词，表示泛指。如： ② i have a car. do you have one？ 我有一辆汽车，你有吗？ ※ one如被定语修饰而仍表示泛指时，在修饰语前可以加不定冠词a或an. ③ there are two bikes behind the house, a new one and old one. 房后有两辆自行车，一辆是新的一辆是旧的。 ※ one被定语修饰表示特指时，在修饰语前可以用定冠词the。如： ④—which man？哪个人？ —the tall one. 个子高的那个人。 ※ one的复数形式是ones，用来代替复数名词，其用法同one.如： ⑤—what colour are the flowers？ 花是什么颜色的？ —the ones on the desk are red, and the ones on the window are yellow. 桌上是红色的，窗台上是黄色的。 ※ one前面可以加this或that，构成this one或that one。 而ones前面不能用these或those，但当ones 前面有形容词 修饰时，可以用these或those。 ⑥ this kite is big, but that one is small. 这只风筝大，可那只小。 ⑦these red apples are big, but those green ones are small. 这些红苹果大，而那些绿苹果小。 ※ one与it，ones与they都代替上文提到的事物，但应注意 区别one和ones是泛指一个或一些人或事物， 当前面有the，this，that，those，these等词修饰时， 与这些词一起才可以特指。it和they代替同类事物中的一个或一些，常用于特指上文提到的人或事物。 ⑧—where is your book？ 你的书在哪？ —it’s on the desk. 在书桌上。 ⑨—who has an eraser？ 谁有橡皮？ —i have one. 我有。（泛指同类中的一个并不是特指） ⑩i have two sweaters. the two ones are red. 我有两件羊毛衫。那两件都是红色的。（与上文是同两件羊毛衫） —do you have english books？ 你有英语书吗？ —yes，i have two ones.是的，我有两本。（泛指同类事物中的两本） 5. confused adj. 迷惑的，糊涂的 confusing与confused confusing adj. 指＂物＂或＂事＂。confused adj. 修饰的是＂人＂。 ①what he did was confusing. 他所做的事难以让人理解。 ②i feel confused to hear the news. 听到这个消息我感到很迷惑。 知识连接： 类似用法的词还有 excited i’m so excited to hear that. 听说那件事我很兴奋 exciting the exciting news is spread quickly. 那个令人兴奋的消息迅速传播开来。 interested i’m interested in the english book. 我对这本英语书感兴趣。 interesting the interesting story made me laugh. 那个有趣的故事使我大笑起来。 lesson 18 1. work for为……工作，为……做事，为……尽力 ①she has to work hard for her family. 她不得不为她的家庭而努力工作。 拓展： work at 从事，致力于，钻研 ②mary works at the research of psychology. 玛丽从事心理学的研究。 2.the weather in australia is quite different from that of shijiazhuang. that pron. 在句中指代前面的the weather，若前面要代指的词是复数形式，则用those. ① the customs in canada are quite different from those in china. 加拿大的风俗习惯很不同于中国的风俗习惯。 ※ 用于引导从句 ② he said that he would come.他说他要来。 ※ 在从句中相当于who，whom或which ③ it’s jeans that makes the decisions here. 这里做决定的是琼斯。 lesson 19 1. keep giving him more继续给他更多的（食物） keep doing something继续做某事，一直做某事 keep保持；继续 ① we will keep on trying, if we get anything done, we will notify you. 我们将继续努力，有结果将通知你。 ②keep calm！ 安静！ ③how long can i keep the book？ 这本书我能借多长时间？