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1、阶段专题复习Unit8序数词【观察领悟】zxxk仔细观察例句,体会并写出序数词的规律。1.MybirthdayisonMay___________.(基数词two的序数词为______)2.Tomis_____________toarrive.(13-19的序数词词尾加______)答案:1.second2.thsecond(2nd)thenineteenth3.WehaveanEnglishpartyonNovember_____________.(以-ty结尾的基数词,变序数词时,变y为_____
2、_,再加______)4.HisbirthdayisonApril_______________.(“几十几”变序数词时,只变______位数。答案:3.i;th4.个thirtieth(30th)twenty-first(21st)【探究总结】1.英语中的序数词1~19除了first,second,third外,其余均由基数词加___构成。学科网①eight的序数词是先去t,再加-th,即eighth;②nine的序数词是先去e,再加-th,即ninth;③以ve结尾的词,应用f代替ve,然后再加-
3、th,如five→fifth,twelve→twelfth。2.20~90的整十的基数词变为序数词时,要把y变为__,然后再加___,如thirty→thirtieth。3.若要表示“第几十几”,只需将个位数变为_______即可,如twenty-one→twenty-first,thirty-four→thirty-fourth。-thie-th序数词【巧学助记】基变序,有规律。一、二、三,特殊记,词尾字母t,d,d。八减t,九去e,f来把ve替。单词ty作结尾,ty变成tie。若是碰到几十几,只变
4、个位就可以。【温馨提示】1.序数词的缩写形式为:阿拉伯数字+序数词的最后两个字母。例如:first→1st,second→2nd。2.在一般情况下,序数词的前面使用定冠词___,若它们的前面有my,his等形容词性物主代词或其他指示代词修饰时,则省略the。the【实战演练】Ⅰ.写出相应的序数词及其缩写形式1.one____________2.two____________3.three____________4.four____________5.five____________答案:1.first
5、1st2.second2nd3.third3rd4.fourth4th5.fifth5th6.eight____________7.nine____________8.twelve____________9.twenty____________10.thirty-one____________答案:6.eighth8th7.ninth9th8.twelfth12th9.twentieth20th10.thirty-first31stⅡ.单项选择1.—What’sthedatetoday?—It’s__
6、____.A.TuesdayB.JuneFourthC.JunethefourD.Junethefourth2.Tuesdayisthe______dayofaweekinEnglish.A.firstB.fifthC.thirdD.fourth3.Nowitisin______century(世纪).A.twenty-oneB.twenty-firstC.thetwenty-firstD.thetwenties-first4.Todayisher______birthday.A.nineB.nine
7、thC.ninthD.thenine5.Ihave______pencils.The______oneisred.A.four;fourthB.fourth;fourC.four;fourD.fourth;fourth名词所有格【观察领悟】仔细观察例句,体会句子中名词所有格的形式。1.Whenis______birthday?(单数名词的所有格加______)2.Thisismy________room.(以s结尾的复数名词的所有格加______)3.Whenis_________Day?(不以s结尾
8、的复数名词的所有格加______)答案:1.’s2.’3.’sAlice’sparents’Women’s4.Sheis______________mother.(共同拥有时,______)5._______________bagsareintheclassroom.(各自所有时,______)组卷网答案:4.最后一个名词变为所有格形式5.每一个名词都要变为所有格TomandAnn’sJim’sandTom’s【探究总结】一、含义英语中名词后加上__构成