Unit 8 When is your birthday Section A (Grammar Focus－3c)（配套课件）-【鸿鹄志·名师测控】2023-2024学年七年级上册英语（人教版）

人教版·七年级上册 英语 Unit 8　When is your birthday? Section A (Grammar Focus－3c) 情景导入 Review ①一月_______ ②八月_______ ③五月______ ④十二月_________ January August May December ⑤三月_______ ⑥九月___________ ⑦六月______ ⑧十月_________ March September June October When is your birthday? My birthday is October 1st. Well, how old are you now? I am thirteen years old. 单词展示 num.第一 first num.第二 second num.第三 third num.第五 fifth num.第八 eighth num.第九 ninth num.第十二 twelfth num.第二十 twentieth When is your birthday? My birthday is on May 2nd. When is his birthday? His birthday is on January 17th. When is her birthday? It’s in August. When is Alice’s birthday? Her birthday is on September 5th. When is your father’s birthday? His birthday is on April 21st. Grammar Focus first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth thirteenth fourteenth fifteenth sixteenth seventeenth eighteenth nineteenth twentieth twenty-first twenty-second twenty-third twenty-fourth twenty-fifth twenty-sixth twenty-seventh twenty-eighth twenty-ninth thirtieth thirty-first 基数词要变为序数词 规律 示例 一般情况下在基数词后加-th six—sixth seventeen—seventeenth 整十的序数词的构成是把对应的基数词末尾的y变为ie，再加-th twenty—twentieth thirty—thirtieth 两位或两位以上的基数词变为序数词时，只将个位数变为序数词 twenty-two— twenty-second 规律 示例 特殊变化的基数词1、2、3、5、8、9等需单独记忆 one—first two—second three—third five—fifth eight—eighth nine—ninth 序数词的用法 1) 序数词前一般要加定冠词the。 2) 序数词常用来修饰名词，但当名词前有形容词性物主代词等限定词时，序数词前不用定冠词。 I live on the second floor. 我住在二楼。 Today is my ninth birthday. 今天是我的九岁生日。 3) 表示分数时，分子用基数词，写在前面；分母用序数词，写在后面。当分子大于1的时候，表示分母的序数词要+s。 one fifth 五分之一 two thirds 三分之二 4) 序数词前有时也可加不定冠词a / an，这时表示的不再是具体范围内的“第几”，而是表示在原有基础上的“又一个，另一个”。 I think you must do it a second time. 我觉得你必须再做一次。 3a Match the questions and answers. Questions Answers 1. When is Jenny’s birthday?___ a. No, it’s on the 6th. 2. When are their birthdays?___ b. Her b