序数词教学讲解课件

序数词的变化及用法鸡东三中赵媛媛序数词的变化及用法鸡东三中1基数词的复习1、三只钢笔2、六个苹果3、12个篮球4、32个西红柿基数词：描述事物数量的多少的数词。

threepenssixapplestwelvebasketballsthirty-twotomatoes基数词的复习1、三只钢笔基数词：描述事物数量的多少的数词。2Numbers基数词OneTwoThreeFourFiveSixSevenEightNineTenElevenTwelveThirteenFourteenFifteenSixteenSeventeenEighteenNineteen

TwentyTwenty-oneTwenty-twoThirtyFortyFiftySixtySeventyEightyNinety

AhundredNumbers基数词OneElevenTwenty-on3认识序数词数词序顺序表示事物的顺序的数词。（由基数词变为序数词）认识序数词数词序顺序表示事物的顺序的数词。4Learnthesenumbersandfindouttherules:一起找规律1st

first2nd

second3rd

third4thfourth5th

6th7th8theighth9thninth10th

fifthsixthseventhtenth11theleventh

12thtwelfth13th

14th

15th

16th17th18th

19th

20thtwentieththirteenthfourteenthfifteenthsixteenthseventeentheighteenthnineteenth21st

twenty-first22nd

twenty-second23rdtwenty-third24th

25th

26th27th28th

29th

30ththirtieth31st

thirty-firsttwenty-fourthtwenty-fifthtwenty-sixthtwenty-seventhtwenty-eighthtwenty-ninthLearnthesenumbersandfindo5基变序（巧学妙记）基变序有规律，结尾加上th1、一、二、三特殊记，结尾就是t/d/d第一first（one)第二second(two)第三third(three)基变序（巧学妙记）基变序有规律，结尾加上th1、一、二、三特62、八去“t”,九去“e”,“ve”要用“f”替后加”th”别忘记第十二

twelfth

（twelve)

第八eighth

(eight)第九ninth（nine)第五fifth(five)

2、八去“t”,九去“e”,“ve”要用“f”替第十二73、整十把“y”变”ie”,后加th莫迟疑twenty---twentieththirty---thirtiethforty---fortiethfifty---fiftiethsixty---sixtieth3、整十把“y”变”ie”,后加th莫迟疑twenty---84、若要遇到几十几，只变个位就可以twenty-one---twenty-firstfifty-five

---fifty-fiftheighty-two---eighty-secondninety-three---ninety-third5、序数词表顺序，前有定冠词莫忘记4、若要遇到几十几，只变个位就可以twenty-one--91.The

monthofayearisApril(四月）A.thirdB.fourthC.fifth2.Thegirlis

.Todayisher

birthday.A.twelfth;twelfthB.twelve;twelfthC.twelfth;twelve3.Ihave

apples,

isgreen.A.six;fourthB.sixth;fourC.six;thefourth1.Themonthofaye10基变序有规律，结尾加上th1、一、二、三特殊记，结尾就是t/d/d2、八去“t”,九去“e”,“ve”要用“f”替后加”th”别忘记