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Unit8语法篇____________________________________________________________________________________________________________________________________________________________________1.熟练掌握序数词的构成和基本用法序数词1.表示事物的顺序的数词叫做序数词。它的作用相当于名词或形容词，可作主语、宾语、定语和表语。2.序数词的构成：(1)第一：first第二：second第三：third(2)第四至第十九均在相应的基数词后加-th，但第五（fifth）和第十二（twelve）均把基数词five(五)和twelve（十二）词尾的ve改为f，再加-th。基数词八（eight）的序数词直接在eight后加-h，即eighth，九（nine）的序数词是将nine词尾的e去掉，再加-th，即ninth。(3)整十的序数词是把对应的基数词的最后一个字母y变为ie再加-th。(4)表示“几十几”的基数词变序数词时，只将个位数变为序数词，十位数不变。3.序数词前一般要加定冠词the表示顺序。TheYellowRiveristhesecondlongestriverinChina.黄河是中国第二长河。4.序数词常用作名词的定语，但当名词前已有物主代词等限定词时，则不再用theherfourthbirthday她的四岁生日5.表示英语中的分数时，分子用基数词，写在前面，分母用序数词，写在后面。当分子超过1时，分母的序数词后要加“s”。1/3onethird2/5twofifths6.序数词前有时也可用不定冠词a/an，这时不再表示在具体范围内的“第几”，而是表示在原有基础上的“又一个，另一个”。IthinkImustdoitasecondtime.我想这件事我必须再做一次。（已做过一次）7.表示编号时，常把基数词放在名词后面来表示顺序，相当于“the+序数词+名词”。LessonFive=thefifthlesson第五课8.序数词的缩写序数词的缩写形式是由阿拉伯数字加上序数词的最后两个字母构成的。first→1st第一second→2nd第二third→3rd第三fourth→4th第四9.基数词变序数词记忆口诀基变序，有规律，一、二、三特殊记，词尾字母t,d,d；-th四加起，八少t来九去e；（从4起在词尾加th）ve变f替，y要变ie。若想表示几十几，只变个位就可以。单项选择1.（2015北京海淀期末）---Whenisyourbirthday?---ItisJanuary23rd.A.onB.inC.atD.of2.（2015广西贵港期末）---Mayisthemonthofayear.A.fiveB.threeC.thirdD.fifth3.（2014四川宜宾中考）DavidBeckhamhaschildren.Brooklynishisson.A.third;firstB.three;oneC.three;firstD.third;one4.（2014四川南充中考）Todayistheboy'sbirthday.Heis12yearsold.A.twelveB.twelvethC.twelfthD.thetwelfth5.（2015浙江湖州浔溪中学月考）Thisismydayinthemiddleschool.A.oneB.thefirstC.theoneD.first6.（2015湖北武昌期末）Ayearhasmonths,andDecemberismonth.A.twelve;twelfthB.thetwelve;twelfthC.twelve;thetwelfth7.（2013江西南昌期末）---WhenisNationalDayinChina?---It'son.A.May1stB.July1stC.October1st解析及答案：1.考查介词用法。表示具体某天用介词on。故选A。2.考查数词用法辨析。May是一年中第五个月份，用序数词fifth，故选D。3.考查数词的用法。表示数量的多少用基数词，表示顺序用序数词。故选C。4.考查序数词用法。句意：今天是这个男孩的第12个生日。他十二岁了。空格中表示“第十二”用序数词，序数词前有形容词性物主代词或名词所有格修饰的时候不用冠词，故选C。5.句意：这是我在这所中学的第一天。空格处缺少表示顺序的词，又因为空格前有物主代词my，故序数词前省略定冠词the，故选D。6.months是复数名词，前面要用基数词；第二空表示顺序，用序数词，前面用定冠词the，故选C。7.NationalDay是国庆节，国庆节是10月1日，故选C。基础演练一、基数词变序数词1.two_______2.six_______3.eight_____4.nine______5.thirteen_______6.seventeen________7.twenty-two________8.thirty_____9.thirty-one_______答案：1.second2.sixth3.eighth4.ninth5.thirteenth6.seventeenth7.twenty-second8.thirtieth9.thirty-first二、单词拼写(单句首字母填空)1.AsweallknowThursdayisthefdayofaweek.2.Father'sDayisonthetSundayinJune.3.TreePlantingDaycomesonthetofMarch.4.Ourcountrydevelopedquicklyinthelatetcentury.5.Writeyournamef,thenyoucomein.答案：1.fifth2.third3.Twelfth4.twentieth5.first巩固提高三、翻译1.第六十四中学_________________2.三分之一____________________3五分之四_____________________4.第501房间__________________5.第二层______________________6.第三次______________________7.他每天早上总是第一个到校。_____________________________________________8.第三天早上玛丽没有迟到。_______________________________________________答案：1.No.Sixty-fourMiddleSchool2.onethird3.fourfifths4.Room5015.thesecondfloor6.thethirdtime7.Heisalwaysthefirsttogettoschooleverymorning.8.ThethirddayMarywasn’tlate.一、单项选择1.---isherbirthday?---It'sonOctober10.A.WhyB.HowC.WhenD.What2.---Whenisyourbirthday?---It'son.A.FebruarytwoB.February2ndC.February2thD.Februarythetwo3.---Whatisthedatetoday?---Itis.A.SundayB.AugustnineC.thefirstofMayD.Octoberfifth4.dayofaweekisThursday.A.ThefifthB.ThefiveC.FifthD.Five5.---Whatareyougoingshoppingfor?---Iwanttobuysomethingformyson'sbirthday.A.twelveB.twelfthC.thetwelfthD.thetwelveth6.---isyourbirthday?---It'sonMarch.A.When;twentyninthB.When;twenty-ninthC.What;twentieth-ninthD.When;twenty-ninth7.Mary'sbirthdayisApril21st.A.inB.atC.forD.on8.Therearedays,inaweekandTuesdayisdayoftheweek.A.seven;thirdB.seven;thethirdC.seventh;threeD.theseventh;three9.---isthelittlegirl?---Sheisfive.A.HowB.WhenC.HowoldD.Who10.Thebabyisonly.A.twomontholdB.twomonthsC.twomonthsoldD.twomonthold答案：1-5CBDAB6-10BDBCC二、完形填空Hello,1nameisLinFei.I'mChinese.I'mastudent,andI'm2yearsold.My3isonMarch21st.Myfriendshaveabirthday4formeonthatday.Ihaveagood5.HisnameisBill.HeisinChinanow.He6Chinese,andhealsolikesChinese7verymuch,liketheMid-AutumnFestivalandtheSpringFestival.IhelphimlearnChinese,8hehelpsmelearnEnglish.OurschoolhasaSportsDayonMay9.Webothlikesports.Iamontheschoolsoccerteamandheisontheschoolbasketballteam.Wealsohavea(n)10festivalatschool.Atthefestival,Billplaystheguitarandsingssongs.Wehaveagreattimeatschool.1.A.IB.myC.herD.his2.A.thirteenB.thirteenthC.twelfthD.fifteenth3.A.dateB.birthC.birthdayD.day4.A.gameB.saleC.tripD.party5.A.friendB.sonC.brotherD.clerk6.A.likeB.likesC.isD.are7.A.foodB.peopleC.gamesD.festivals8.A.butB.atC.andD.for9.A.twentyB.twelveC.elevenD.twelfth10.A.artB.foodC.bookD.sports答案：1-5BACDA6-10BDCDA__________________________________________________________________________________________________________________________________________________________________一、阅读理解AMynameisAmanda.Igetmanypresentsonmybirthday.Doyouwanttohavealook?Ilikecollecting(收集)differentkindsofwatches.MyauntbuysthisredwatchformeinHongKong.Ilovecarsverymuch.Myfatherissonice.Heknowsmewell.Thisbluemodel(模型)carisfromhim.HebuysitinCanada.Mysistergivesmeth