language基数词与序数词.ppt
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1、NumberSs in Class 10Ss in Grade oneSs in No. 7 Middle schoolPeople in Conghua City474921,953538,188写出112的基数词one two three four five six seven eight nine teneleven twelve112的基数词要劳劳记的基数词要劳劳记;写出1319的基数词thirteen fourteen fifteensixteen seventeen eighteennineteen1319的基数词以的基数词以_结尾结尾;thirteen fourteen fift
2、eensixteen seventeen eighteennineteenteenthirteen fourteen fifteensixteen seventeen eighteennineteen写出2090的整十位数的基数词twenty thirty forty fiftysixty seventy eighty ninety2090的整十位数以的整十位数以_ 结尾。结尾。twenty thirty forty fiftysixty seventy eighty ninetytytwenty thirty forty fiftysixty seventy eighty ninety写出2
3、3、52的英语表达法twenty-threefifty-two几十几的数由十位数和个位数几十几的数由十位数和个位数合成,中间还要加连字符合成,中间还要加连字符-。如:如:forty-three, ninety-nine写出一万、十万的英语形式。写出一万、十万的英语形式。ten thousand a hundred thousand10,000100,000 基数词的读法:基数词的读法:如:如:425 502four hundred and twenty - fivefive hundred and two三位数时,百位与十位(个位)之三位数时,百位与十位(个位)之间要加间要加_。and试读下列
4、的数字:试读下列的数字:1,123,658,109one billion one hundred and twenty three million six hundred and fifty-eight thousand one hundred and nine大数的读法:大数的读法:每隔三位用一个逗号隔开每隔三位用一个逗号隔开,从从右往左右往左算起,第一个逗号是算起,第一个逗号是_,第第二个逗号是二个逗号是_,第三个逗号第三个逗号是是_。thousandmillionbillionRead the numbers correctly on your students paper. Read
5、the numbers on page 23 loudly and find out some rules.uhundred, thousand , million, billion表示确切数目或用在表示确切数目或用在several后后面时不能加面时不能加_;也不与;也不与_ 连用。连用。(例如:(例如:five thousand students)。)。但是在表示不确切数目时,要用但是在表示不确切数目时,要用_形式,后与形式,后与_连用。(如:连用。(如:hundreds of books,thousands of students。)。)sof复数复数of1.How long is the
6、 river? Its_meters.A. about three hundred and seventeen B. about two hundreds and forty-five C. more than two hundreds D. less than three hundreds and seventy 2.Can you write the number eighty-four thousand, six hundred and twenty-six? Yes, it is_. A. 84662 B. 84626 C. 48662 D. 486263. How many stud
7、ents are there in your school? There are _.A. the six hundred and sixty-five B. six hundred sixty-five C. six hundreds and sixty-five D. six hundred and sixty-five4. _ people visited the Great Wall last summer holiday. A. Million of B. Thousand of C. Millions of D. Five millions Which Indian do you
8、like best?12345678910 I like the ninth one.Read the ordinal numbers on page 24.Notes:序数词的缩写形式由序数词的缩写形式由_加上加上 序数词的最后序数词的最后_字母组成。字母组成。如:如:first - 1st, second - 2nd, ninety-third - 93rd, forty- fifth- 45th.数字数字两个两个基数词变序数词记忆口诀基数词变序数词记忆口诀:1、2、3特殊记,加特殊记,加 th 从从4起起;8加加 h , 9少少 e ;逢逢5逢逢12,ve变变 f ;20到到90,y 要
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