山西省吕梁市石楼县石楼中学高中英语 Module5 Vocabulary and speaking 精品课件 外研必修1.ppt
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1、外研版外研版 高一年级高一年级(必修必修1)Module 5英英语课件件2021/8/8 星期日1Vocabulary and Vocabulary and speaking speaking 2021/8/8 星期日2英语中基数词、序数词、分数、小数和百分数的读法2021/8/8 星期日31.基数词的读法:基数词的读法:A.先说先说“几十几十”,再说再说“几几”,中间,中间用连字符。如:用连字符。如:23 89B.先说先说“几百几百”,再加再加and,再加末两位数再加末两位数(或末位数)。如:(或末位数)。如:223 416 809 twenty-three eighty-ninetwo h
2、undred and twenty-threefour hundred and sixteeneight hundred and nine2021/8/8 星期日4C.1000以上的数先从后向前数,每三位数加以上的数先从后向前数,每三位数加一一“,”(千分位);第一个(千分位);第一个“,”号前为号前为thousand;第二个第二个“,”号前为号前为million;第三个第三个“,”号前为号前为billion。如:。如:1,001 4,000 9,743 174,301750,000,000 one thousand and onefour thousandnine thousand,seve
3、n hundred and forty-threea(one)hundred and seventy-four thousand,three hundred and oneseven hundred and fifty million2021/8/8 星期日52.序数词的读法序数词的读法序数词一般以与之相应的基数词加词序数词一般以与之相应的基数词加词尾尾-th构成,如:构成,如:tenth(第十),但下(第十),但下面这些基数词在变序数词时,面这些基数词在变序数词时,有特别有特别的地方。如:的地方。如:A.one two three five eight nine twelvefirstsec
4、ondthirdfiftheighthninthtwelfth2021/8/8 星期日6B.以以-ty结尾的词,要先变结尾的词,要先变-y为为-i,再加,再加-eth。如:如:twenty fortyC.以以one,two,three,five,nine收尾的多位数词,收尾的多位数词,要照第一条方法变。如:要照第一条方法变。如:twenty-one twenty-two thirty-five ninety-ninea hundred and fifty-three twentiethfortiethtwenty-firsttwenty-secondthirty-fifthninety-nin
5、tha hundred and fifty-third2021/8/8 星期日7基数词表示分子,序数词表示分母,基数词表示分子,序数词表示分母,除了分子是除了分子是“1”的情况外,序数词要的情况外,序数词要用复数。如:用复数。如:2/3 7/9 5/12 one-fourthtwo-thirdsseven-ninthsfive-twelfthstwo and three-fifthsthirty and seven-eighths3.分数词的读法分数词的读法23530782021/8/8 星期日8一些特殊的表达法一些特殊的表达法 a/one halfa/one quarterthree qua
6、rters4.小数的读法小数的读法7.8 0.4 0.03 0.125 14.397 seven point eightzero point fourzero point zero threezero point one two fivefourteen point three nine seven2021/8/8 星期日95.百分数的读法百分数的读法27%45%86%twenty-seven percent forty-five percent eighty-six percent2021/8/8 星期日10Can you say the following in English corre
7、ctly?1,000 2,000 12,000 112,000796,000one thousandtwo thousandtwelve thousandone hundred,twelve thousandseven hundred,ninety-six thousand2021/8/8 星期日11879,457eight hundred,seventy-nine thousand,four hundred and fifty-seven 1,000,000 9,000,00032,000,000 212,000,000one million nine millionthirty-two m
8、illiontwo hundred,twelve million2021/8/8 星期日12988,766,688nine hundred,eighty-eight million,seven hundred,sixty-six thousand,six hundred and eighty-eight987,654,321nine hundred,eighty-seven million,six hundred,fifty-four thousand,three hundred and twenty-one2021/8/8 星期日131,000,000,000 one billion9,00
9、0,000,000 nine billion32,000,000,000thirty-two billion564,865,000,000five hundred,sixty-four billion,eight hundred,sixty-five million2021/8/8 星期日14978,876,675,467nine hundred,seventy-eight billion,eight hundred,seventy-six million,six hundred,seventy-five thousand,four hundred and sixty-seven 2021/8
10、/8 星期日15Lets have a match to see who can say the following numbers correctly and quickly.1.765,8472.seven hundred,sixty-five thousand,eight hundred and forty-sevenPractice2021/8/8 星期日162.756,980,000 seven hundred,fifty-six million,nine hundred and eighty thousand3.345,567,887,987 three hundred,forty
11、-five billion,five hundred,sixty-seven million,eight hundred,eighty-seven thousand,nine hundred and eighty-seven 2021/8/8 星期日174.897,786,000,576 eight hundred,ninety-seven billion,seven hundred,eighty-six million,five hundred and seventy-six5.786,087,670,756 seven hundred,eighty-six billion,eighty-s
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