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第二部分专项语法高效突破专项4数词考点1基数词1.基数词的读法(构成)高频考点精讲基数词规则例词1~12各自独立one;two;three;four;five;six;seven;eight;nine;ten;eleven;twelve13~19词尾加-teenthirteen;fourteen;fifteen;sixteen;seventeen;eighteen;nineteen几十的表达法词尾加-tytwenty;thirty;forty;fifty;sixty;seventy;eighty;ninety21~99在十位与个位之间加连字符构成21读作twenty-one;99读作ninety-nine101~999先说几百,再加and,再加末尾两位数或个位数101读作onehundredandone;238读作twohundredandthirty-eight1000以上的数将数字从右往左数,每三位数用一个逗号隔开,从右往左第一个逗号表示“千”读thousand;第二个逗号表示“百万”读million;第三个逗号表示“十亿”读billion18,657,421读作eighteenmillion,sixhundredandfifty-seventhousand,fourhundredandtwenty-one2.基数词的用法①表示数量多少。如:Therearefourpeopleinmyfamily.在我家里有四口人。②表示时刻。直接读法:先读小时,后读分钟。如:3:25读作threetwenty-five。间接读法:a)≤30分钟:分钟+past+小时。如:3:25读作twenty-fivepastthree;3:30读作halfpastthree;3:15读作aquarterpastthree。b)>30分钟:(60-分钟)+to+(小时数+1)。如:3:55读作fivetofour;3:45读作aquartertofour。③表示年(月)份和年龄。如:HewasborninMarch,2004.他出生于2004年3月份。Sheisfifteenyearsold.她15岁了。④表示编号(顺序)。如:Unit12第12单元;Page5第5页;Room203203号房间。⑤表示年代。如:inthe1940s/1940’s(读作inthenineteenforties)在20世纪40年代。⑥“基数词+连字符+单数名词(+连字符+形容词)”构成复合形容词,作定语,表示时间、距离等。如:aneight-year-oldboy一个8岁的男孩;ten-minutewalk(=tenminutes’walk)步行10分钟的路程。⑦“基数词+more”或“another+基数词”表示在原来的基础上增加数量。如:HewillstayinChinafortwomoreweeks(=anothertwoweeks).他将在中国再多待两周。⑧确数与概数的表达法:确数的表达法:基数词+hundred/thousand/million/billion+名词复数。如:threehundredstudents三百名学生;twothousandbooks两千本书。概数的表达法:hundreds/thousands/millions/billions+of+名词复数。如:thousandsofbirds数以千计的鸟;millionsofpeople数以百万的人。考点2序数词1.基数词变序数词(口诀)基变序,有规律,词尾要加-th,一二三,特殊记(first,second,third),八去t(eighth),九去e(ninth),-ve要用f替(fifth,twelfth),-ty变作tie,再加th莫忘记(twentieth,thirtieth,fortieth,fiftieth...ninetieth),若遇几十几,只变个位就可以(twenty-first...ninety-ninth)。2.序数词的用法①表示顺序,其前用定冠词the,后接单数名词。如:Thesecondpictureismorebeautifulthanthefirstone.第二张图画比第一张漂亮。②表示日期中的“日”。如:July6th,20172017年7月6日。③序数词前用不定冠词a/an,表示“再……;又……”。如:I’vetriedtwice,butI’lltryathirdtime.我已经试过两次,但我将再试一次。考点3分数词的表达法1.分子用基数词,分母用序数词。如:one/athird三分之一;one/aquarter,a/onefourth四分之一。2.当分子大于1时,分母用复数形式。如:threefourths/threequarters四分之三;twofifths五分之二。【注意】分数词作主语时,谓语动词数的形式根据分数词后面的名词来确定。十年真题全练近十年来,数词是临沂市中考的重点,几乎每年都考1道小题,考查内容侧重考查基数词和序数词的识记及它们的用法,考查形式有单项填空、词形转换、选词填空及听写等。预计2018年,基数词和序数词仍将是考查的重点,其中hundred,thousand,million等确数和概数的用法也要重点关注,分数的考查一般情况下不作重点。考点1基数词1.[2015·临沂,56]Therewere____(thousand)ofpeopleattheconcert.thousands2.[2014·临沂,56]Thereare____(seventh)smallapplesinthebowl.3.[2013·临沂,21]ThegovernmentofLinyiisbuilding____cheapandgoodhousesforthepeople.A.thousandB.thousandsC.thousandofD.thousandsof4.[2012·临沂,22]Didyouknowthattheearthishometo____animals?A.millionB.millionsC.millionofD.millionsofsevenDD考点2序数词5.[2017·临沂,61]Pleasepassmethe____dictionaryfromtheleftinthebookcase.(six)6.[2016·临沂,59]Brushyourteethatleast____(two)aday:inthemorningandbeforebedtime.7.[2013·临沂,62]LiuYangbecamethe____(one)ChinesewomaninspaceonJune16,2012.8.[2012·临沂,73]Octoberisthe____(ten)monthoftheyear.9.[2010·临沂,71]The____(eleven)NationalGameswereheldinJi’nanlastyear.10.[2009·临沂,72]Theirapartmentisonthe____(seven)floorofthebuilding.11.[2008·临沂,66]Fridayisthe____(six)dayofaweek.sixthtwicefirsttentheleventhseventhsixth猜押预测一、单项填空1.Thereare____monthsinayear.Decemberisthe______monthofayear.A.twelve;twelveB.twelfth;twelfthC.twelve;twelfthD.twelfth;twelve2.—Howmanyhoursdoyousleepeverynight?—About____hours.From9:00p.m.to6:00a.m.A.nineB.nineteenC.ninthD.ninety3.—Whatdoyouthinkoftheenvironmenthere?—Wonderful!____oftheland______coveredwithtreesandgrass.A.Twofifths;isB.Twofifth;isC.Twofifths;areD.Twofifth;are4.____ofthestudentsinClass6havelunchatschool.A.TwofifthB.OnethirdsC.ThreefifthD.ThreequartersCAAD5.LiMingwillbe____.Hisparentsaregoingtohaveapartyforhis______birthday.A.sixteen;sixteenthB.sixteenth;sixteenthC.sixteen;sixteenD.sixteenth;sixteen6.PleaseturntoPage____andtakealookatthepictureonit.A.theeightiethB.eightiethC.eightiesD.eighty7.Heclimbedsofastthathereached____floorintwominutes.A.nineB.thenineC.theninthD.ninth8.Morethantwo____treesareplantedinourneighborhoodeveryyear.A.hundredB.hundredsC.hundredsofD.hundredofADCA9.—HaveyouheardofTFBOYS?—Certainly.About____teenagerslovethemverymuchinourschool.A.hundredsB.twohundredsofC.twohundredsD.twohundred10.Meimeiisgoingtobeanoldersister.Herparentsareplanningtohavetheir____child.A.oneB.twoC.firstD.second二、词形转换1.The____talentshowgaveusabigsurprise.(five)2.Theyoungcouplelikekidsverymuchandplantohavea____baby.(two)DDfifthsecond3.Hisofficeisonthe____floorofthetallbuilding.(eight)4.ThoughSuzygotthe____placeinthecompetition.Shehastriedherbest.(three)5.Althoughhelivesonthe____floor,heseldomusesthelift.(twelve)6.The____OlympicswillbeheldinTokyo(东京)in2020.(thirty-two)7.Theyareorganizingthe____sportsmeetingoftheirschool.(twenty)8.Thereare____ofstudentstakingpartintheactivitiesinthesquare.(hundred)eighththirdtwelfththirty-secondtwentiethhundreds
本文标题:(临沂专版)2018中考英语总复习 第二部分 专项语法 高效突破 专项4 数词课件
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