小学英语语法——数词.pptxVIP

Lesson4数词1

2分类及定义基数词序数词表示数量的多少表示顺序的先后

3基数词的用法构成基数词1-12是独立的单词one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve基数词13-19是在个位数后面加-teen构成，其中thirteen,fifteen,eighteen是不规则变化。thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen整十的基数词20-90是在个位数词后面加-ty构成，其中twenty,thirty,forty,fifty,eighty是不规则变化。twenty,thirty,forty,fifty,sixty,seventy,eighty,ninety

4非整十基数词21-99：十位数与个位数之间加上连字符“-”。twenty-one,seventy-six,eighty-eight三位数以上的基数词，百位数和十位数之间用and连接。201：twohundredandone3514:threethousand,fivehundredandfourteen98132:ninety-eightthousand,onehundredandthirty-two324901:threehundredandtwenty-fourthousand,ninehundredandone百：hundred 千：thousand 百万：million 十亿：billion万：tenthousand 十万：onehundredthousand

5hundredthousandmillionbillion的用法表示确切数字时，只用其单数形式threehundredtenthousand表示不确切数字时，要用其复数形式，并且与of连用，表示约数hundredsofmillionsof典型例题1Therearemorethan______daysinayear.A.threehundredsB.threehundredC.threehundredsofD.threehundredof典型例题2______visitorstraveltotheGreatWalleveryyear.A.ThousandsB.ThousandsofC.ThousandD.Thousandof

6基数词表示编号名词+基数词（首字母大写）LessonFive第五课Room306306房间PageTwelve第十二页ClassOne,GradeSix六年级一班典型例题1Thefirstlessoniseasierthan___.A.Lessonsix B.LessonSixC.lessonsix D.lessonSix典型例题2Therearealotofstudentsin___.A.GradeThree,ClassTwoB.ClassTwo,gradethreeC.ClassTwo,GradethreeD.ClassTwo,GradeThree

7序数词的用法构成序数词1-3是独立的单词first,second,third基数词4-19是在基数词后面加-th构成，其中fifth,eighth,ninth,twelfth,thirteenth,fifteenth是不规则变化。fourth,fifth,sixth,seventh,eighth,ninth,tenth,eleventh,twelfth,thirteenth,fourteenth,fifteenth,sixteenth,seventeenth,eighteenth,nineteenth整十的基数词20-90变序数词时，变y为i再加“eth”。twentieth,thirtieth,fortieth,fiftieth,sixtieth21以上非整十基数词变序数词时，只需将其个位数变成序数词，其它位数仍用基数词。twenty-first,seventy-sixth,twohundredandeighty-eighth

8常见的数词表达日期的表达月日年日月年2016年10月1日October1st,20162016