英语序数词（讲义）人教PEP版英语五年级下册

数词(二) 序数词 知识要点: 1. 表示先后顺序的数词叫序数词,如first, second, third, fourth等。 2. 基数词变序数词的口诀: 一二三单独记;八去t,九去e,五、十二中ve变f,再加词尾th;整十先去y为i,再加eth;要是遇到两位数,十位基数个位序。 注意:基数词和序数词都可以表示顺序,两者之间的替换如下: the first lesson= Lesson One the eight unit= Unit Eight 开心练习: 1、 写出下列数字的序数词。 1 2 3 4 5 6 13 8 9 19 11 12 20 21 96 15 二.用所给词的适当形式填空。 1. There are (four) seasons in a year. 2. The (two)girl is very tall. 3. Spring is the (one) season of the year. 4. Amy will come back on the (twenty-five) of next month. 5. I live on (eight) floor. 6. Lucy is in (six) seat. 7. Tuesday is (three) day of the week. 8. I am in Class (four). 9. We are going to learn (two) lesson tomorrow. 10. What’s (three) and (five)? 三. 翻译下列短语。 1. 十二个家庭 2. 在上午九点 3. 第三个孩子 4. 在七月 5. 六月一日 6. 第五课 7. 112 房间 8. 数百所学校 四. 默出下列易错的基数词和序数词。 12 5 20 15 9 8 22 19 冲刺名校 一. 单项选择。 ( ) 1. There are days in a year. A. three hundreds sixty-five B. three hundreds and sixty-five C. three hundred and sixty-five ( ) 2. people visit this museum every day.. A. Hundreds B. Hundreds