山西省中考英语第二轮语法考点聚焦第25讲数词习题.ppt

山西省,英语,第25讲数词,1基数词的构成112独立成词：one，two，three，four，five，six，seven，eight，nine，ten，eleven，twelve。1319的基数词以teen结尾。要注意thirteen，fifteen，eighteen的拼写。表示整“十”的基数词：2090的基数词都以ty结尾。其中特别要注意twenty，thirty，forty，fifty，ninety的正确写法。2199的写法是：十位数加个位数，中间用连字符号“”连接。如：26twentysix；57fiftyseven。,考点一基数词,101999的构成是：百位数与十位数之间用and连接。如：123onehundredandtwentythree。hundred，thousand，million，billion等词在表示确定数目的时候，直接在前面加基数词；表示不确定数目时，要在它们后面加s，其后还要加of。如：threehundredstudents三百名学生thousandsofstudents成千上万的学生,2基数词的用法表示数量的多少。表示年份。1988读作nineteeneightyeight表示时刻。7：00读作sevenoclock8：30读作halfpasteight/eightthirty3：05读作fivepastthree/threefive5：48读作twelvetosix/fivefortyeight,表示顺序。单数名词基数词，名词的第一个字母通常要大写。如：ClassTwo；Room12；No.3MiddleSchool注：“单数名词基数词”可转换成“the序数词单数名词”，此时名词的第一个字母不大写。如：LessonThreethethirdlesson第三课“数词单数名词”相当于合成形容词作定语(如：athreeyearoldgirl)。合成形容词中的名词一定是单数。合成形容词不能作表语，后面必须跟所修饰的名词。与表示时间、距离、长度的名词一起构成“数词单位名词形容词”，表示事物的形状、年代及距离等。如：tenyearsold，3600meterslong。,“几十”的基数词复数形式可用来表示某人约几十岁或年代。如：Inhissixties，herodeabikeroundtheworld.在他六十岁的时候，他骑自行车环游世界。Thelightwasinventedinthe1870s.电灯是在十九世纪七十年代发明的。与another，more连用时，表示在已有基础上再增加定数量。如：anotherthreehours，twomorecakes。,【考点直击1】1Itsreportedthatovereight_peoplelosttheirlivesintheearthquakeinNepalthisyear.(2015，重庆B)AthousandBthousandsCthousandofDthousandsof2ThebookJourneytotheWestisverypopular.Yeah，morethan_studentsinourschoolboughtit.(2015，郴州)AthreehundredBthreehundredsChundredof,A,A,3Howmanyfriendswillcometoyour_birthday?About.(2015，黄冈)Afifteen；fifteenBfifteenth；fifteenthCfifteen；fifteenthDfifteenth；fifteen4Tonysmumlooksyoungandbeautiful.Itshardtoimaginesheisalreadyinher_(2015，苏州)AfiftiesBfiftyCfiftiethsDfiftieth5Aquartertofouris_(2015，张家界)A3：15B3：45C4：15,D,A,B,考点二序数词,1序数词的构成序数词多数是由“基数词th”构成。如：sixsixth，sevenseventh等。以y结尾的整十的数词，先将y改为i，再加eth。如：fiftyfiftieth，seventyseventieth等。21以上的非整十的数词，将末位数(即个位数)改为序数词，其他的位数仍用基数词。如：twentyonetwentyfirst，thirtytwothirtysecond，twohundredandninetyeighttwohundredandninetyeighth等。,少数的序数词属于特殊情况，而且这类词也常常是考点，大家要特别注意记忆。如：onefirst，twosecond，threethird，fivefifth，eighteighth，twelvetwelfth。注：fourteenth(第十四)，fortieth(第四十)，ninth(第九)，nineteenth(第十九)，ninetieth(第九十)。2序数词的用法表示顺序。序数词表顺序时，其前须用定冠词the，后接单数名词。但是如序数词前出现人称代词，则不加the。如：Imthefirstonetoarrivehere.我是第一个到达这里的。Todayismythirtiethbirthday.今天是我三十岁生日。,用于最高级前。如：Johnisthesecondtallestboyinourclass.约翰是我们班第二高的男孩儿。用于分数。分子用基数词，分母用序数词。分子为1，分母用单数，分子大于1，分母用复数。如：onefifth，threefifths。些习惯用法：1/4也可表示为aquarter，3/4也可表示为threequarters，1/2也可表示为ahalf。,考点三数词的特殊用法,1hundred，thousand，million，billion的运用。在构成具体的数字时，用单数形式。表达不具体的多数时用其复数。如：twohundredstudents二百个学生thousandsofstudents成千上万的学生。2与another，more连用时，表示在已有基础上再增加一定数量。如：anotherthreehours或threemorehours。3“一两天”可表达为：adayortwo或oneortwodays；4有关“半”的表达：threeyearsandahalf或threeandahalfyears三年半；halfanhour半小时。,【考点直击2】1Yesterdaywashis_birthday.Heenjoyedhimself.(2015，衡阳)AtwelfthBtwelveCthetwelfth2_ofthelandinthatdistrictiscoveredwithtreesandgrass.(2015，兰州)AFifthtwoBTwofifthCFifthsecondDTwofifths3Itsmy_timetocometothebookstorethismonthbecausemostofthebooksinitaremyfavorite.(2015，哈尔滨)AforthBfourCfourth,A,D,C,4Wearegoingonholidayinthe_weekofJuly.(2015，吉林)AtwoBtwiceCsecond5Itissaidthat_studentsliketotalkwithfriendsonline.(2015，自贡)AtwothirdsBtwothreeCtwothird,C,A,1Kateisaschoolgirl.Shegotmanypresentsonher_birthday.(2015，凉山)AnineBtheninthCninetiethDninth2Helenlovesreading.Shehasread_booksthismonth.(2015，重庆A)AfiveBfifthCfiveofDfifthof3Boysandgirls，pleaseturntoPage_andlookatthepicture.(2015，呼和浩特)AFifth；fiveBFive；fiveCFifth；fifthDFive；fifth,D,A,D,4The_biggestearthquakesinNepal(尼泊尔)havekilledmorethan8，000people.(2015，成都)AtwoBsecondCtwice5Comeon，baby.WehavealreadydoneCofthework.(2015，资阳)AtwothreeBtwothirdCtwothirdsDsecondthree6Itsreportedthatpeoplethrow_plasticbagsalongthisstreeteveryday.(2015，南充)AhundredBhundredsChundredofDhundredsof,B,D,7Basketballissoexcitingthat_peopleplayitforfun.(2015，天津)AmillionBtwomillionsCmillionofDmillionsof8Whatsthedatetoday?ItsJune_，2015.(2015，邵阳)AseventeenBtheseventeenCtheseventeenth9Jackisnineyearsold.Todayishis_birthday.(2015，眉山)AnineBninthCninethDninety,D,C,B,10Ittook_peoplethreemonthstobuildthisgreatbuilding.(2015，安顺)AtwohundredsBhundredofChundredsofDtwohundredof11Decemberis_andlastmonthoftheyear.(2015，株洲)AthetwelfthBtwelfthCthetwelve12Theteacherwasveryangrybecausetheboymade_mistakesinhishomework.(2015，恩施)AoneBfifthCfive,C,A,C,13ImgoingtotakethissummerholidayinTaiwan.Oh，really？Taiwanis_abeautifulislandthatpeopleinGuangdonggotovisititeveryyear.(2015，汕尾)Aso；thousandsBso；thousandsofCsuch；manythousandDm