中考英语 数词 公开课.ppt

数词,学习目标一基数词和序数词的构成。二基数词的用法。三序数词的用法。,数词概述,1.表示数目多少或顺序先后的词叫数词。数词分为基数词和序数词。2.基数词表示数目或数量多少。序数词表示顺序和等级。,一基数词和序数词的构成,1.one2.two3.three4.four5.five6.six7.seven8.eight9.nine10.ten,11.eleven12.twelve13.thirteen14.fourteen15.fifteen16.sixteen17.seventeen18.eighteen19.nineteen20.twenty,10.ten20.twenty30.thirty40.forty50.fifty60.sixty70.seventy80.eighty90.ninety,firstsecondthirdfourthfifthsixthseventheighthninthtenth,eleventhtwelfththirteenthfourteenthfifteenthsixteenthseventeentheighteenthnineteenthtwentieth,一二三，特殊记f要把ve替八减t,九去e结尾th不忘记若想变为几十几，只变个位就可以。,基数词变为序数词：,二基数词考点,1.有s没数字，有数字没s:hundred,thousand,million,billion2.inhisforties.Inones+年龄复数inthe1930s.Inthe+年代复数3.时间的表示(1)2：25twotwenty-five(2)8:20twentypasteight6:50tentoseven(3)aquarter=15minutesahalf=30minutes8:30halfpasteight8:15aquarterpasteight7:45aquartertoeight,4.数的读写(1)数的读法1,987,654,321onebillion,ninehundredandeighty-sevenmillion,sixhundredandfifty-fourthousand,sixhundredandtwenty-one1234100111001034(2)数的写法三位一逗,三序数词考点,1.年份、日期的表示日期用序数，年份用基数1949.10.1October1st,1949年份的读法：两位一组19991900190920082.分数的表示：（1）分子基，分母序；分子大于1,分母加s2/5(2)aquarter=1/4threequarters=3/4ahalf=3.编号的表示LessonOne=thefirstlessonClassThree=thethirdClass结构:名词+基数词或the+序数词+名词4.序数词缩写取后两位,基础练习1.读出下列数字799991031,3021,987,654,321第九第四十第五十二2.写出下列数字.(1)twothousandsixhundredandfifty-nine_(2)eighteenmilliontwohundredandthirtythousandandsixty-eight_,2659,18,230,068,3.数词表示编号LessonOne=thefirstlesson结构:名词+基数词或the+序数词+名词如：Page5=Room214.表示年龄a.表示十几岁用teens指从13岁到19岁。在某人十几岁时：inonesteens.b.表示“几十岁”；用inones+数词复数inonesthirties表示在某人三十几岁时，指从30岁到39岁。在他五十多岁时写作c.18岁：eighteenyearsoldd.一个十八岁的男孩：an18-year-oldboy=aboyof18,inhisfifties,thefifthpage,thetwenty-firstroom,1.Itisnotrarein_thatpeoplein_fiftiesaregoingtouniversityforfurthereducation.A.1990s,theB.the1990s,/C.1990s,theirD.the90s,their2.Jackisnowin_.thethreegradeB.GradeThirdC.GradeThree3.-Peter,howoldisyourfatherthisyear-_.Andwejusthadapartyforhis_birthdaylastweekFortieth,fortyB.Forty,fortyC.Forty,fortiethD.Fortieth,forthieth,D,C,C,综合演练,3._ofthelandinthatdistrict_coveredwithtreesandgrass.A.Twofifth,isB.Twofifth,areC.Twofifths,isD.Twofifths,are4.Fiveminustwo_three.A.wasB.areC.wereD.Is,C,分数和百分数作主语时，关键是看其后的名词来决定其谓语动词的数。该题中的是不可数名词，所以动词需用单数。,D,中考演练选择题1.-Whenwasheborn?-Hewasborn_.A.in1988June6B.onJune6,in1988C.inJune6,1988D.onJune6,19882.AthoughIfailedfourtimes,myfatherencouragedmetotrya_time.A.twoB.fourC.thirdD.fifth3.TheOlympicsGamesareheld_.A.everyfouryearsB.everyfouryearC.everyfourthyearsD.everyfour-year,D,A,D,4.Theyellowriveris_inChina.ItgoesthroughmanycitiesinChina.A.thesecondlongestriverB.thelongestscondriverC.thescondlongestriversD.thelongestscondrivers5.Inourschoolmorethan_boys_likeEnglish.A.twofifths;dontB.twofivesdontC.twofifthsdoesntD.scondfivedoesnt6.Thewartookplace_.A.