unit2numbers

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1、乐恩特文化传播有限公司乐恩特教育个性化教学辅导教案(周课型)校区:益田编 号:21 授课教师毛娟日期2013-10-5 时间13:0015:00 学 生王子健年级初二科目英语 课题Unit2 Numbers 教学目标 要求1.掌握本单元的重点短语 2.掌握基数词和序数词 教学重难点 分析重点:基数词和序数词的用法 难点: first, second, third, fifth, twelfth, twentieth 等不规则的序数词的拼写教学过程课前准备本周学校 学习内容存在和要 解决的问 题知识要点概述 : 课文短语总结a long time ago很久以前my favourite game

2、我最喜欢的游戏a wise old man一位睿智的老人in the palace在宫殿里challenge sb 挑战某人promise to do sth承诺做某事win a prize 赢得奖赏win the game赢得比赛would like sth 想要某东西would like to do sth 想要做某事one grain of rice一粒米the square of the chessboard 棋盘的方格instead of doing sth代替做某事reply to sb回复某人order sb to do sth 命令某人做某事collect a bag of r

3、ice收集一袋儿米realize the problem意识到这个问题have enough rice有足够的米the invention of written numbers数字的发明in this way 通过这种方法count things 数东西的数量use different ways使用不同的方法乐恩特文化传播有限公司make marks on sth在某东西上做记号help sb do sth帮某人做某事count from one to ten从一数到十the amount of food事物的数量be made from 有制成develop into tools发展成工具s

4、how different numbers显示不同的数字lead to sth 导致;通向语法要点:数词数词分基数词和序数词。基数词表示数目,序数词表示顺序。. 1基数词(1)基数词的具体形式如下:A从 1 10 one ,two ,three ,four ,five ,six,seven ,eight ,nine ,ten B从11 19 eleven ,twelve , thirteen , fourteen , fifteen , sixteen , seventeen , eighteen , nineteen. 注:标记为 蓝色 的单词特殊记忆,其他的词都是由其个位数形式后添加后缀-

5、teen 构成。C从21 99 整数几十中除twenty , thirty, forty ,fifty,eighty 为特殊形式外,sixty ,seventy ,ninety 都是其个位数形式后添加后缀-ty 构成。表示几十几时,在几十和个位基数词形式之间添加连字符“ -”21 twenty-one 76 seventy-six D百位数个数基数词形式加“hundred”,表示几百,在几十几与百位间加上and101 a hundred and one 320 three hundred and twenty 648 six hundred and forty-eight E千位数以上从数字的

6、 右端向 左端数起, 每 三位 数加一个逗号 “ , ” 。 从右开始, 第一个 “ , ” 前的数字后添加thousand(千),第二个 “ ,” 前面的数字后添加million (百万),第三个 “ ,” 前的数字后添加billion (十亿)。然后一节一节分别表示,两个逗号之间最大的数为百位数形式。2,648 two thousand six hundred and forty-eight 16,250,064 sixteen million two hundred and fifty thousand sixty-four 5,237,166,234 five billion ,two

7、 hundred and thirty-seven million ,one hundred and sixty-six thousand ,two hundred and thirty-four(注:只有百跟十之间才有and )(2)基数词的用法A基数词在表示确切的数字 时, 不能使用 百、千、百万、十亿的复数形式 ;但是,当基数词表示不确切数字 ,如成百、成千上万,三三两两时,基数词则以复数形式出现。There are hundreds of people in the hall乐恩特文化传播有限公司大厅里有数以百计的人。Thousands and thousands of people

8、come to visit the Museum ofQin Terra-Cotta Warriors and Horses every day每天有成千上万的人来参观秦兵马涌博物馆。They went to the theatre in twos and threes他们三三两两地来到了剧院。表示人的不确切岁数 或年代 ,用 几十的复数形式表示。He became a professor in his thirties他三十多岁时成为了教授。She died of lung cancer in forties她四十来岁时死于肺癌。It was in the 1960s那是在二十世纪六十年代。

9、. 基数词的句法功能基数词在句中可作主语、宾语、定语、表语、同位语。The two happily opened the box两个人高兴地打开了盒子。(作主语)I need three altogether我总共需要三个。 (作宾语)Four students are playing volleyball outside四个学生在外面打排球。(作定语)We are sixteen我们是 16 个人。 (作表语)They three tried to finish the task before sunset他们三个人尽力想在日落前完成任务。(作同位语)D. 基数词也可以 表示顺序 。只需将基

10、数词放在它所修饰的名词之后即可,不需要添加定冠词。the first lesson=Lesson One the fifth page=Page 5(five)the twenty-first room=Room 21(twenty-one )E.时刻表示法1. 表示几点钟用基数词加可以省略的oclock5:00 读作five oclock 或 five 2. 表示几点 过几分,在分钟后加 past ,再加小时five past seven 七点过五分half past six 六点半a quarter past eight 八点过一刻seven past eight 八点过七分3. 表示几点

11、 差几分,在分钟后面加 to ,再加小时ten to eight 差十分八点(七点五十分)a quarter to twelve 差一刻十二点(十一点四十五分)twenty to six 差二十分六点(五点四十分)在日常生活中,常用下列简单方法表示时间。乐恩特文化传播有限公司以小时、分种为单位分别读出数字。6:31读作six thirty-one 10:26 读作ten twenty-six 14:03 读作fourteen o three 16:15 读作sixteen fifteen 18:30 读作eighteen thirty 23:55 读作twenty-three fifty-fi

12、ve 注:时刻表上的时间大多采用24 小时表示法,这样就不需要用a.m. 表示上午, p.m.表示下午了。精编例题讲解 : ( )1. There are _ days in a year. A. three hundreds sixty-five B. three hundreds and sixty-five C. three hundred and sixty-five D. three hundred and sixty five ( )2. There are_ students in this school. A. eight hundreds and forty-six B. e

13、ight hundred and forty six C. eight hundred and forty-six D. eight hundred forty-six ( )3._people visit this museum every day. A. Hundred B. Hundreds C. Hundred of D. Hundreds of ( )4.There are two_ people in the meeting room. A. hundred B. hundreds C. hundreds of D. hundred of ( )5. Every year _ wa

14、tch NBA on TV . A. million people B. millions of people C. millions people D. million of people ( )6. _ trees have been planted in our school in the past 10 years. A. Thousands of B. Two thousands C. Thousand of D. Two thousand of ( )7. Look! There are _ in the sky. A. thousand stars B. thousand of

15、stars C. thousands of stars D. thousands of star 知识巩固练习 : 一根据汉语提示完成句子 1.He didn t_ (认识到) his mistake. 2.You should lie down and _ ( 休息). 3.The _ ( 剩余部分 ) of the guests were in the hall. 4.We have two _ ( 儿子) and one daughter. 5.I should be able to tell who are _ ( 有智慧的 ) and who are foolish. 6.I liv

16、e near my office. So I walk to work _ _ (代替) going by car. 二用所给词的适当形式填空乐恩特文化传播有限公司1.They _ (promise) to finish the work next week. 2.He won the first _ (prize). 3.We want to join the _ (chess) Club. 4.What is one particular _ (challenge) she is facing? 5.The baby _ (double) its weight in a year. 三. 单项填空( )1.Th

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