1、 序数词的构成序数词的构成人教版七年级上册英语人教版七年级上册英语 第第8单元单元一、基数词序数词一、基数词序数词 How many fruits are there?01Which（哪个）（哪个）is apple and which is banana?03There are eleven fruits.The fourth fruit is apple and the sixth fruit is banana.基数词基数词.序数词序数词 What are they?02They are orange,lemons,apple,pear,banana,pine apple(菠萝）菠萝）wa
2、termelon and strawberries.thfour四四第第序数词序数词01020304051 1、2 2、3 3要全变其余thth加后面8 8去t,9t,9去e e字母f f 带 ve ve ty变成tie二、序数词的构成06若要变化几十几，个位变序就可以！一、1 1、2 2、3 3 要全变 基数词基数词1=one 2=two 3=three序数词序数词 fir=1 (第一)seco=2(第二)thi=3(第三)这里输入简单字概述二、其余 -th-th 加后面基数词基数词4=4=four10=ten6=six 序数词序数词fourthth=4（第（第 4 4）tenthth=10
3、（第（第1010）sixsixthth=6=6（第（第6 6）三、8 8 去 t t,9 9 去 e e基数词基数词8=eight9=nine序数词序数词eighthth=8(第八)ninthth=9第九)四、字母 f f 替 ve ve 基数词基数词5=five12=twelve 序数词序数词fifthth=5(第五)twelfth=12(第十二）五、tyty变成tietie基数词基数词50=fifty20=twenty 序数词序数词fiftiethth=50(第五十)twentieth=20（第二十）六、若要变化几十几，个位变序就可以！基数词基数词21=twentyone34=thirty
4、-four序数词twenty first=21(第21）thirty-fourth=34（第（第34）1 1、2 2、3 3 要全变、其余 -th-th 加后面8 8 去 t t,9 9 去 e e，字母 f f 替 ve,tyve,ty变成tie tie 若要变化几十几，个位变序就可以！序数词前要加thethe，以上规律别忘记！基数词基数词变序数变序数词口诀词口诀fortieth=40thfortythreetwelfth=12thnine fifty-twotwelvefifty-second=52ndthird=3rdninth=9thhave a try!序数词2.序数词的构成3.序数词的书写 1.序数词的定义Thanks for your listening
