江苏省南通市七年级英语下册 教师辅导讲义 数词 牛津版.doc

数词教学内容你知道下面的数字分别是阿拉伯数字中的几吗？i, ii, xii, v, vi, vii, ix, iii, iv, x, viii, xi 你知道1-10在中文中对应的繁体字怎么写吗？ 批注：芝麻开门部分可以先从学生不太熟悉的罗马数字开始，教案中给出的数字已经打乱顺序，防止学生按照顺序往下数，下面给出了中文的一到十，询问孩子学习了这么长时间的语文后是否会写中文的数字，然后导出本节课的主题：数词。 初一英语数词详解一、基本分类1）基数词表示数目多少的数词叫基数词，如 one, five, ten, thirty, sixty-five 等。 2）序数词表示顺序先后的数词叫序数词，如 first, sixth, tenth, twenty-first 等。三、用法详解 1、基数词的构成1） 1-20表达英语中有相对应的单词，两位数的表达方法为整数加个位数组成，如twenty-one;三位数如one hundred and twenty-one, 百位和十位之间加and，后面两位数要加连字符，四位以上只有在百位和十位之间加and，如1134 one thousand, one hundred and thirty-four。 英语中没有万，千万，亿等单位，如果需要表示万的话用thousand计算,例如1,4283 fourteen thousand two hundred and eighty-three；如果需要表示千万和亿的话用million计算，如2,1824,5200 two hundred and eighteen million two hundred and forty-five thousand and two hundred。 2）用作基数词单位的 hundred, thousand, million, billion 不带复数词尾-s，但若用于表示数百、数千、数百万这样的泛指，则用复数。如： about two thousand people died in the earthquake. 大约有两千人在地震中丧生。 thousands of people go to the seaside every year. 每年成千上万的人到海滨去。典型例题( ) two _(hundred) of students took part in the sports meeting last week.解析：正确答案为hundred. 前面出现具体数字，后面只能用hundred，但是后面出现了of, 很多学生会误写成hundreds, 但是这边的of 表示的范围，这句话的意思是：上周学生中的两百个人参加了运动会。3）表示整十的基数词用复数形式可以表示人的大约岁数或年代。如： he is in his early twenties. 他才二十出头。 this took place in the 1930s. 这事发生在20世纪30年代。数词和名词，形容词连用时有连字符和没有连字符在句中的位置是有区别的，例如five-year-old和five years old. 有连字符的在句中做定语，修饰后面的名词；无连字符的在句中做表语，放在系动词后面。the five-year-old boy can dress himself.那个5岁的孩子自己能穿衣服了。 my son is a five-year-old boy.我的儿子是一个五岁的男孩。2、序数词的构成1）许多序数词是由相应的基数词后加词尾-th构成的，如four / fourth，sixteen / sixteenth；twentieth, thirtieth, fortieth 等表示整十的序数词，由相应的基数词将词尾y改为ie，再加-th 构成。几个常考的不规则变化序数词需注意：ninth，twelfth，fortieth，ninetieth等。 2）非整十的多位数，将个位数变成序数词即可：twenty-first(第21)，thirty-sixth(第36)，ninety-ninth(第99)，three hundred and sixty-fifth(第365)等。3）序数词前通常要用定冠词，但当序数词前有形容词性物主代词时，通常省略其前的定冠词。如： today is my fathers fortieth birthday.有时序数词前不用定冠词，而用不定冠词，表示次第在原有基础上的增加。如：well have to do it a second time. 我们得再做一次。3、数词的用法1） 时刻的表示：小时，分钟，秒钟都用基数词表示，例如：five oclock, seven thirty, two to eight等。2）年，月，日的表示：年份用基数词，日用序数词。例如：in 1999，五月八号 写作 may the eighth表示在几世纪这个概念时，用序数词。例如：在21世纪 写作 in the twenty-first century.3）在分数的表达，分子须用基数词,分母用序数词。分子如是1以上的基数词,分母须用复数形式。如1/3写作a/one third，3/4写作three fourths。 4）编号的表示：基数词放到名词的后面，前面的名词要大写；序数词放在名词的前面，要加定冠词。例如：lesson 1，the first lesson.批注：本部分可以依照从基数词到序数词的顺序，给孩子讲解数字的表达方法，基数词变序数词的方法和特殊的书写，数词部分一些知识点比较零散，老师在讲完知识点后要注意以简洁的语言给孩子系统总结。（建议5-10分钟）i. 数词填空1. even a child knows september is the _ month of a year.（nine）2. three _ (hundred)of the students are dancing at the square after supper.3. my family live on the_（five）floor of the tall building. 4. ive bought a present for my fathers_ (forty) birthday. 5. december is the_ (twelve) month of it.6. chinese people plant several_ (million) trees every year.7. now _ (thousand) of people around the world cant get clean water. 8. the doctor advised him to take the medicine _ (two) a day. ii. 数词选择( ) 1. _ visitors come to suqian during may day holidays every year. a. thousands of b. two thousands c. thousand of d. thousand( ) 2. - how was your weekend? -great! it was my grandfathers_ birthday. we enjoyed ourselves. a. seventy b. seventieth c. the seventieth d. seventeenth( ) 3. may is the _ month of a year. a. fifty b. fifteen c. fifth d. five( ) 4. a_ girl named dong xinyi looked after her disabled father. a. three-year-old b. three-years-old c. three years old( ) 5. please turn to page _ and look at the _ picture in this unit. a. twentieth; one b. twenty; one c. twentieth; first d. twenty; first( ) 6. - i hear your friend is visiting san ya again. is it the second time for him? - yes, and he will come for _time next spring. a. a third b. a second c. the third( ) 7. -would you like to have _ apples? -no, thank you. ive had enough. a. other two b. another two c. more two d. two others( ) 8. there are _ days in a week and tuesday is_ day of the week. a. seven ,third b. seven ,the third c. seventh ,three d. the seventh, three( ) 9. there _ twelve months in a year. september is the_ month. a. are, ninth b. is, ninth c. are, nineth d. is, nineth( ) 10. please turn to _. a. page 11 b. the 11st page c. page 11 d. page the 11th( ) 11. there are _ students in our school. a. four-hundred and forty-five b. four hundred and forty-five c. four hundreds and forty-five d. four hundred and forty five( ) 12. -how many students are there in your class?-_. a. twenty nine b. thirty and two c. forty-five d. fifties答案：i. 1. ninth 2. hundred 3. fifth 4. fortieth 5. twelfth 6. million 7. thousands 8. twice ii. abcad abaaa ba scor