R 七年级上册,Section A 第2课时,Unit 8 When is your birthday?,New words,1. first _ 2. second _ 3. third _ 4. fifth _ 5. eighth _ 6. ninth _ 7. twelfth _ 8. twentieth _,第一,第二,第三,第五,第八,第九,第十二,第二十,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,序数词的用法,1.定义：,表示事物的顺序的数词叫序数词。它的作用相当于名词或形容词，可作主语、宾语、定语或表语。,2.构成：,基数词要变为序数词是有规律可循的，其方法及具体示例如下：,twentytwentieth thirtythirtieth,sixsixth seventeenseventeenth,一般情况下在基数词后加-th,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,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,特殊变化的基数词1、2、3、5、8、9等需单独记忆,onefirst twosecond threethird fivefifth eighteighth nineninth,巧记歌诀,基变序，有规律。 1，2，3，特殊记； 结尾时，t，d，d； 从第4，加 th; 8加h，9去e； 5和12,也好记， f来把 ve 替； 若要表示整十数， 词尾y, 变 ie; th 接上莫迟疑, 如要表示几十几， 只变个位就可以。,Match the questions and answers.,b,d,e,c,a,Complete the conversation and practice it with your partner.,A: How_ are you, Grace? B: _ twelve. A: And _ is your birthday? B: My _ is on March 12th. How about you and Tom? A: Well, my birthday is _ July 5th, and Toms birthday is _ December.,old,Im,when,birthday,on,in,Find out your group members birthdays and ages. Line up from the youngest to the oldest.,How about you and Tom? 你和汤姆怎么样?,how about用来提出请求、建议或征求对方意见, 意为“ (你认为) 怎么样? 如何? ”后跟名词、代词或v. -ing。,常用来表示建议的句型 How /What about +doing 怎么样? Why dont you +do 为什么不? Lets do. . . ! 让我们做吧!,Language points,find out 查清；弄明白,Jims mother is looking for her cat. 吉姆的妈妈在找她的猫。,寻找,找到；发现,查清；弄明白,强调动作过程,强调动作结果,多指通过调查、询问、打听、研究之后“搞清楚、弄明白”,. 用所给词的适当形式填空 1. March 6th is my (twenty) birthday. 2. Im the (one) student to come here. 3. Mike and Tom (be) 13 years old. 4. Today is (Bob) birthday. 5. The baby is five (month) old.,Exercise,twentieth,first,are,Bobs,months,. 单项选择 1. How old your father? A. are B. is C. does D. do 2. I like March best. How about ? A. she B. he C. his D. her 3. The last month of a year is . A. February B. November C. December D. October,4. When is your birthday? Its on . A. day B. June C. June 5th D. twelve 5. We will go for a trip. . A. See you B. You are welcome C. Excuse me D. Have a good time,同学们，这一课学习的单词你们都掌握了吗？现在大家来检验一下，点击下面的视频开始听写吧！,