小学英语基数词序数词-语法.ppt

《小学英语基数词序数词-语法.ppt》由会员分享，可在线阅读，更多相关《小学英语基数词序数词-语法.ppt（27页珍藏版）》请在三一办公上搜索。

1、Unit 7,数 词,什么是数词？,表示数目多少或顺序多少的词叫数词，数词分为基数词和序数词。表示数目多少的数词叫基数词；表示顺序的数词叫序数词。,基数词,one,two,three,four,five,six,seven,eight,seven,six,three,zero,nine,two,one,eight,four,five,numbers,seven,six,three,zero,nine,two,one,eight,four,five,Numbers are widely used.,Hello，86861873-,Title,Number song,Lets sing a son

2、g！,Lets count!,1-10 one two three four five six seven eight nine ten 11-19 eleven twelve thirteen forteen fifteen sixteen seventeen eighteen nineteen,Lets review,10,20,30,40,50,60,70,80,90,100,ten,thirty,forty,seventy,sixty,One hundred,fifty,ninety,twenty,eighty,Dragon,1-100,1,3,2,4,Look and Read,10

3、0 one hundred,1,000 one thousand,1,000,000 one million,1,000,000,000 one billion,1002,00030,000400,0005,000,00060,000,000700,000,0008,000,000,00090,000,000,000100,000,000,000,Can you read them?,hundred,thousand,million,billion,onehundredonethousandtenthousandonehundredthousandonemilliontenmillionone

4、hundredmilliononebilliontenbilliononehundredbillion tens/hundreds/thousands/millions of,一百 一千 一万 十万 一百万 一千 万 一亿 十亿 一百亿 一千亿数十/百/千/百万,看谁译得快：,Step1:one hundred and twenty-three billion,Step2:four hundred and fifty-six million,Step3:seven hundred and eighty-nine thousand,Step4:one hundred and three,103,

5、789,456,123,625 six hundred and twenty-five 8,961 eight thousand,nine hundred and sixty-one 95,680 ninety-five thousand,six hundred and eighty,Look and Practice,Look and Practice,6,302,876 six million,three hundred and two thousand,eighty hundred and seventy-six 45,690,510,810 forty-five billion,six

6、 hundred and ninety million,five hundred and ten thousand,eight hundred and ten,8,3,9,1,What is the largest/smallest 4-digit number?,9831,1389,Lets do a practice!,face to facenumber to number,one-first,two-second,three-third,four-fourth,five-fifth,six-sixth,seven-seventh,eight-eighth,nine-ninth,ten-

7、tenth,序数词,twenty-twentieth,thirty-thirtieth,forty-fortieth,fifty-fiftieth,sixty-sixtieth,seventy-seventieth,eighty-eightieth,ninety-ninetieth,tenth,ninth,eighth,seventh,sixth,fifth,fourth,third,second,first,ordinal numbers,tenth,ninth,eighth,seventh,sixth,fifth,fourth,third,second,first,一、二、三，特殊记，加t

8、h从4起，八少“t”，九去“e”，“ve”要用“f”替，(five,twelve)见“y”变成“i”和“e”，词尾加上“th”，(twenty,thirty,-ninety)若是遇到几十几，只变个位就可以。,ordinal numbers(序数词),Can you write their ordinal numbers?,2,5,44,12,9,18,72,19,101,90,40,14,8,100,1000,December is the _ month of the year.Monday is the _ day of the week.English is spoken by most

9、 people as their _ language in the USA,Great Britain,Australian,and Canada.The Games of the _ Olympic in 2008 will be held in the city of Beijing.Im hungry.Ive eaten three apples.Would you please give me a_ one?At the beginning of the _ century the worlds population has passed 6 billion.He got off this bus and got on a _ one.,twelfth,second,first,twenty-ninth,fourth,twenty-first,second,Practice:,作业,Thank You!,