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1、基数与序数词自主学习【课堂学习】一、考点梳理二、语法复习1、考点：基数词的定义例 句： There are twenty-five girls in our class.用法：表示 的数词称为基数词2、考点:基数词的构成1-12为独立的单词(默写1-123/9 者I，以 teenZ吉尾(1318 19)20-90之间的整十都以ty结尾(20 40 50)20-90之间的几十几，先说几十再说几，个位和十位间要加连字符-(36) 101-999:先说几百，再加and,再加末两位数或末位数(246) 1,000以上的数，从后往前数，每三位加一个“J,从后往前数，第一个为thousand,第二个”为
2、million,第三个为 billion.C 1,211,573) 3、考点：基数词的用法 彳列句:1 . He has two hundred books. 2. Hundreds of students go to the library.用法：表示具体数目时，hundred, thousand, million用单数，在表示“数百、数千、数百 万”等不确定的数目时，在hundreds, thousands, millions后力口 of+复数名词小练： There are (million) of living things on the earth. 例子：Class Two Room
3、 307 No.l 6用法：表示编号注意:编号时，序号在前用序数词，序号在后那么用基数词例子：第一课 Lesson One二 The first Lesson(3) 例句：He went to the UK in his twenties. The bicycle was invented in the 1880s. 用法：表示“几十”的基数词的复数形式可以用来表示岁数或者某个年代小练： My aunt became a nurse in her (twenty) and she still loves her job now.4、考点：序数词的定义例 句 l.His father is as
4、 old as his mother. 2.This picture is not so good as that one.用法：表示 的数词叫做序数词5、考点：序数词的构成 第一到第三，分别是, , ,需要特别记忆 第四到第十九，除Efth,eighth,ninth,twelfth的拼写特殊外，其余都由相应的基数词 加th构成(第七,第十三,第十九)20-90之间第几十的序数词由相应的基数词去y加ieth构成(第二十) 21-99之间第几十几的序数词，十位用基数词，个位用序数词，中间用连字符-连接 (第二十一,第六十八)6、考点：序数词的用法 彳列 句: The second bus is
5、coming.用法：序数词表示顺序，其前面要加 ，其后接单数名词小练： We will celebrate my grandpas (eighty) birthday. 例子：十月二十日October 20th用法：序数词表示日期中的“日”小练：十一月一号 七月三号 例句：Ive tried twice, but Fil try a third time.用法：序数词前加,表示再一，又一小练：()My aunt has only one child, and she wants child.A. the second B. a second C. two【当堂检测】一、选择填空()1. He
6、got birthday cakes on his birthday.A. second; fifteen B. two; fifteenC. second; fifteenth D. two; fifteenth()2. Now children, turn to Page and look at the pictures in Unit 1. Writeit down next to the picture.A. Twentieth; twelfth; twiceB. Twenty; twelfth; secondC. Twenty; twelve; secondD. Twentieth;
7、 twelve; two()3. China is a great country with a history of about five years.Yes. And of foreigners come to visit it every year.A. thousand; thousandB. thousands; thousandsB. thousand; thousandsD. thousands; thousand()4. There is panda in Shanghai Wildlife Park,A.one-month-old B. one-month old C. a
8、one-month-old D. an-one-month-old 二、词汇运用The managers room is right above mine. Its on the(three) floor.1. There are some bikes over there. The (five) one is mine.2. My birthday is on the (twenty) of September.3. This is my (two) day in Beijing.4. You have tried . Please try a third time, OK?【课后拓展】一、
9、首字母填空One night after I went to bed, I felt very thirsty and I had to get up for some w 1. Suddenly I h 2 a strange noise. I looked o 3 from my back door and saw a big flyingsaucer (碟)! It had blinking (闪烁的)light on it and it also made a 1 4 noise.I watched from the back door and saw a strange door o
10、n the side of the flying saucer. Then I saw a strange man walk out. He had two bright green eyes and he was moving towards me. Oh, he must be an alien (外星人)! He was tall. He didn t look scary (受惊的)but had a smile on his face. He looked so f 5. The alien saw my cat and played with it happily. Then he
11、 walked to thegarden. He p 6 some flowers and took some with him. He smelt and made a big noise. Thatwoke up my parents and also my n 7. Everyone came to see what h 8. When theysaw the alien, they were a little scared. The alien was happy, and the he turned around and walked into the flying saucer. Then it flew away and we couldn I see it any in 9.Suddenly my mum saw some strange flowers that she had never seen before in the garden. My mum said they must be the alien? s special p 10 to us.1.2.3.4. 5. 6.7.8.9. 10.