2023中考二轮专项复习 数词教学案（无答案）

初三英语二轮复习教学案
课题：数词 班级： 组别: 姓名: 评价:
【复习要点】 数词分为基数词和序数词。用于表示事物数目的词称为基数词，表示事物顺序的 词称为序数词。
1.基数词(1000 以内的基数词的读法)
(1)1-20：one，two，three，four，five，six，seven，eight，nine，ten，eleven，twelve， thirteen，fourteen，fifteen, sixteen，seventeen，eighteen，nineteen，twenty
2.基数词变序数词的方法：
(1)一般在基数词后加 th eg．four→fourth, thirteen→thirteenth
(2)不规则变化 one→first,two→second,three→third,five→fifth,eight→eighth,nine→ninth, twelve--twelfth
(3)以 y 结尾的十位整数,变 y 为 ie 再加 th twenty→twentieth,
3.分数的特殊形式
(1)one third = a third (2)one fourth = a quarter (3)three fourths = three quarters
口诀：基变序，有规律；词尾要加 th。 一二三，特殊记；词尾分别 tdd。八去 t ，九去 e ；ve 则以 f 替。ty 则变作 ti ; 后面还有一个 e。要是遇到几 十几；只将个位变成序。
3.数词的应用： A.时间：
a. 整点：基数词 + o’clock eg. It’s eight o’clock now. b. 几点几分：
1．直接表达法：先小时后分 eg. 3:25 three twenty-five
2.间接表达法：先分后小时
1)(<30 分钟)用 past ：分钟 past 小时 eg. 3:25 twenty-five (minutes) past three 2) (>30 分钟)用 to：(60-分钟数) to (小时数+1)
eg. 3:35 twenty-five (minutes) to four
3) 30 分钟 = half an hour 15 分钟 = a quarter
eg. 3:30 three thirty = half past three 3:15 three fifteen = a quarter past three.
3:45 three forty-five = a quarter to four
B.日期表达法：月日，年（或日月年）
1949 年 10 月 1 日 : October1st , nineteen forty-nine
=the first of October, nineteen forty-nine 2000 年: the year two thousand =twenty hundred
3 月 1 日: March the first = the first of March
C.表编号： 第 207 房间：Room 207 第五课： Lesson 5 = the fifth lesson D.序数词与不定冠词(a; an)连用表“又一；再一” eg. You’ve done it three times. Why not try a fourth time
E.分数的表达：分子（基数）、分母（序数）
eg. one third 三分之一 two thirds 三分之二
注意：1.分子超过 1 时，分母加 s 2.含分数的短语作主语由分数后的词决定谓语
eg.1)One third of the students are girls. 2)One third of the milk is mine. F.表约数： 表不确定的数字时，数词用复数。若带名词，再加 of 如：hundreds of(数百，成百上千的)，thousands of(数干，成千上万的)， millions of(数百万的)
(
1
) (
Knowledge is power.
知识就是力量。
)
【课堂学习】 考点一：基数词的基本用法，确指和泛指表达。
five hundred students, hundreds of students, five hundred of the students The Palace Museum attracts (百万) of tourists every year.
考点二：序数词。提醒：ninth, twelfth, twentieth。
①序数词表日期、楼层，世纪、生日、顺序。
Tom is busy preparing for a party to celebrate his sister’s (twelve) birthday.
—How was your day off yesterday
—Perfect! It was my grandma’s (eighty)birthday. We had a big cake.
②“a+序数词”表示“又一，再一”，强调动作的反复性。
③序数词后跟形容词的最高级
④序数词后跟动词不定式 考点三：分数表达
分子用基数词，分母用序数词；分子超过一，分母加-s。
A recent scientific report says three (eight) of the school students suffer from sub-health(亚健康).
考点四：百分数表达。50 percent of the students
百分数和分数作主语，谓语动词跟后面的名词保持一致。
Two thirds of the students in our class money to the poor girl recently.
A．have raised B．has raised C．have donated D．has donated
考点五：有关词组
in the 1870s, in one’s thirties, in the twenties
Though he's in his （六十几岁），he's energetic enough to go round.
【当堂检测】 一、单项选择
( ) 1. It’s my daughter’s birthday today.She’s years old.
A. eighteen B. eighteenth C. the eighteen D. the eighteenth
( ) 2. Now, farmers leave their hometown to search for work in the cities.
A. million of B. two millions C. millions of D. two millions of ( ) 3. The number “23,456” can be read as “ ”.
twenty-three thousand, four hundred and fifty-six
twenty-three thousand and four hundred fifty-six
two three thousand and four five six D. two three thousand four and five six ( ) 4. My daughter is _ years old.Today is her birthday.
A. nine; nineth B. nine; ninth C. ninth; nine D. nineth; ninth ( ) 5 —Nowadays China has about 25,000 kilometers of high-speed railways.
—That’s _of the world’s total.
A. two third B. two-third C. two thirds D. two three
( ) 6.You all failed in the exam yesterday，so I want to give you chance.
A. one B. a second C. the third D. the second ( ) 7.—How do you say “1：57” in English —It's .
A. three past two B. fifty seven past one C. three to one D. three to two
二、用所给数词的适当形式填空。
I have tried three times, and the teacher asks me to have a (four)try.
Even a child knows September is the (nine) month of a year.
In her , she became the general manager of a company.(forty)
Yesterday was my daughter’s (two) birthday.
The number of the pages in this book is five (hundred).
Two (fifth)of the land in that district is covered with trees and flowers.
The (nineteen)World Book Day was on April 23,2014.
Mike goes to see his grandparents (one)a week.