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思维开发启迪人生·中小学教育培优实效品牌课程咨询:34296928(海珠)81742032(荔湾)84147232(赤岗)first语法——基数词与序数词基数词变化规律例子特殊1~12One,two,three,four,five,six,seven,eight,nine,ten.eleven,twelve13~19+teenseventeenthirteen,fifteen,eighteen20~90+tyTwentyTwenty,thirty,forty21~99十位-个位ninety-nine三位数百位and十位-个位Threehundredandforty-four“逢三一逗”:thousand、million、billion.153,367,982Onehundredandfifty-threemillionthreehundredandsixty-seventhousandninehundredandeighty-two注意:ten,score,hundred,thousand,million,billion数字+hundredhundredsofonehundredpeople一百人hundredsofpeople数百人。序数词一、二、三,特殊记(first,second,third);基变序,末尾加上th;八去t(eighth),九去e(ninth),ve要用f替(fifth,twelfth);以y结尾变ie,后跟th莫忘记(如:thirtieth,fiftieth);若想表示几十几,只变个位就可以(如:twenty-first,forty—ninth)。百分比基数词+percent+of(注:percent不加s)如:Twentypercentofthemilkisdrunkup.小数小数点前的整数按基数词的规则表示,小数点读作.point,小数点后的数字按其数字直接读出来。如:l3.56读作thirteenpointfivesix。分数前基后序,复数加s。如:13写作onethird;25写作twofifths或者two-fifths。倍数一倍用once,两倍用twice/double,三倍及三倍以上用“基数词+times”。如:threetimes,fourtimes等。年、月、日年份用基数词,日期用序数词,其顺序常用“月、日、年”。缩写由数字及其写法的后两个字母组成。21st,202nd,143rd,498th2009年12月l5日:Nov15th,2009Novemberl5(th),2009或15(th)November,2009或thefifteenthofNovember,2009思维开发启迪人生·中小学教育培优实效品牌课程咨询:34296928(海珠)81742032(荔湾)84147232(赤岗)second读作Novemberthefifteenth,twothousandandnine编号可用序数词或基数词表示,序数词位于名词前,并加上定冠词;基数词位于名词后。LessonFive=thefifthlessonPage1=thefirstpage电话号码直接读写,隔四一逗。56229034Fivesixtwotwo,ninezerothreefour或者fivesixdoubletwo,nineothreefour其他第二中学No.2middleschool=thesecondmiddleschool=the2ndmiddleschoolFirstofall首先Myeleventhbirthday我的十一岁生日在十岁时atten/attheageoften一个半小时:anhourandahalf,oneandahalfhour一两个小时:anhourortwo,onetwohours两分钟步行时间:twominutes’walk,two-minutewalk(前面有定冠词修饰时要用连字符)一个十二岁的女孩agirloftwelve/atwelve-year-oldgirl/agirloftwelveyearsoldI’mthefirsttogettoschool.Ithinkthefirstdayofspringisthetwenty-secondofMarch加Add3and93+93plus9equals/is12.3+9=12减Substract3from99-39minus3equals/is6.9-3=6乘Multiply3by93×93multipliedby9equals/is27.3×9=27除Divide9by39÷39dividedby3equals/is3.9÷3=3时刻顺读倒读8:00eighteighto’clock8:05eightfiveFive(minutes)pasteight8:15eightfifteenFifteen/aquarterpasteight8:30eightthirtyHalfpasteight8:40eightfortyTwentytonine8:45eightforty-fiveFifteen/aquartertonine8:55eightfiftyFive(minutes)tonine
本文标题:小升初英语-基数词与序数词
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