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1、Unit8Whenisyourbirthday?PeriodIIF,F,February.M,M,MarchandMay.S,S,September.O,O,October.N,N,November.D,D,December.A,A,AprilandAugust.J,J,January,JuneandJuly.Let'schant!HavefunGrammarFocusWhenisyourbirthday?MybirthdayisonOctober2nd.Whenishisbirthday?HisbirthdayisonJanuary17th.Whenisherb
2、irthday?It’sinAugust.WhenisAlice’sbirthday?HerbirthdayisonSeptember5th.Whenisyourfather’sbirthday?HisbirthdayisonApril21st.GrammarFocusfirstsecondthirdfourthfifthseventheighthninthtentheleventhtwelfththirteenthfourteenthfifteenthsixteenthseventeentheighteenthnineteenthtwentiethtwentie
3、th-firsttwentieth-secondtwentieth-thirdtwenty-fourthtwenty-fifthtwenty-sixthtwenty-seventhtwenty-eighthtwenty-ninththirtieththirty-first基数词是用来表示数目的数词。基本用法如下：一、用于可数名词前作定语，表示人或事物的数目。Wehaveelevenbooksonthedesk.我们有十一本书在桌子上。二、用于句中作表语，表示年龄。Sheisonlytwelve.她仅仅才12岁。三、用于时刻表达。Igetupatsixthirty.
4、我六点三十分起床。基数词拓展序数词的用法很多，主要有以下几种：一、用来表示事物或人物在时空上的顺序。ThefirstbookisaboutEnglish.Thesecondoneisaboutsports.第一本术是关于英语方面的，第二本是关于运动方面的。二、可用于表示日期。Januaryfirst.一月一日Octobertenth.十月十日序数词三、序数词有时前面可加不定冠词来表示“再一”，“又一”这样的意思。CanIaskhimathirdtime？我能再一次问他吗？四、与基数词一起，构成分数词。如：onefourth四分之一twofourths四分之二注意：
5、分子用基数词，分母用序数词，分子大于一时，分母用复数形式。拓展序数词顺口溜帮助您记忆：基变序，有规律；1、2、3单独记，末尾有字母t、d、d;8去t，9去e，f来把ve替；整十将y变ie，后加th要牢记；若是遇到两位数，十为基个为序。Matchthequestionsandanswers.将问句与答语配对。3aQuestionsAnswers1.WhenisJenny’sbirthday?______a.No,it’sonthe6th.2.Whenaretheirbirthdays?_______b.HerbirthdayisonMay24th.3.Whenisy
6、ourbrother’sbirthday?_c.Yes,itis.4.IshisbirthdayinJuly?________d.TheirbirthdaysareinJanuary.5.IsyourbirthdayonFebruary1st?e.It’sonJune16th.abcdeA：How______areyou,Grace?B:_________twelve.A:And_____isyourbirthday?B:My________isonMarch12th.HowaboutyouandTom?A:Well,mybirthdayis_____July5t
7、h,andTom’sbirthdayis______December.Completetheconversationandpracticeitwithyourpartner.补全对话并与同伴练习。3boldI’mwhenbirthdayoninName:JackieChen,DateofBirth:April7,1954Age:54A:WhenisJackie’sbirthday?B:HisbirthdayisApril7th.A:Howoldishe?B:Heis54.Whenisyourbirthday?Mybirthdayis_______.六月一日When
8、___yo
