英语中大数字的读法省公共课一等奖全国赛课获奖课件.pptx

县区县区：长岭县学校：学校：长岭县第五中学学科：学科：英语课题：课题：英语中大数字读法作者：作者：姜丽艳第1页英语中大数字读法英语中大数字读法Go for itGo for it！初中英语八年级下册！初中英语八年级下册Unit 7Unit 7第2页你知道在英语中，大数字怎么读吗？你知道在英语中，大数字怎么读吗？1.1.三位数为一组，中间用空格（或者逗号）隔开三位数为一组，中间用空格（或者逗号）隔开153 406 799153 406 799 2323,446446,120120第3页2.2.从左到右，每一组数字后分别读从左到右，每一组数字后分别读 billion million thousand billion million thousand3,9803,9809,600,0009,600,0001,400,000,0001,400,000,000你知道在英语中，大数字怎么读吗？你知道在英语中，大数字怎么读吗？three three thousandthousand nine hundred and eighty nine hundred and eightynine nine millionmillion six hundred six hundred thousandthousandone one billionbillion four hundred four hundred millionmillion第4页3.3.每组数字百位和十位之间加每组数字百位和十位之间加 and and你知道在英语中，大数字怎么读吗？你知道在英语中，大数字怎么读吗？6,6716,67139,83039,830six thousand six hundred six thousand six hundred and and seventy-oneseventy-onethirty-nine thousand eight thirty-nine thousand eight hundred hundred andand thirty thirty第5页4.4.若十位为零，直接在百位和个位之间加若十位为零，直接在百位和个位之间加 and and；若百位和十位都是零直接在千位和个位之间加若百位和十位都是零直接在千位和个位之间加 and.and.5045046,400,0016,400,001你知道在英语中，大数字怎么读吗？你知道在英语中，大数字怎么读吗？five hundred five hundred andand four foursix million four hundred six million four hundred thousand thousand andand one one第6页5.5.小数点读做小数点读做 point point，小数点后面依次按数字读出，小数点后面依次按数字读出5.455.4525.1825.18你知道在英语中，大数字怎么读吗？你知道在英语中，大数字怎么读吗？five five pointpoint four five four fivetwenty-five twenty-five pointpoint one eight one eight第7页小试牛刀小试牛刀3,5203,5205,000,0045,000,0048,844.438,844.435,237,000,0005,237,000,000three thousand five hundred and twentythree thousand five hundred and twentyfive million and fourfive million and foureight thousand eight hundred and eight thousand eight hundred and forty-four point four threeforty-four point four threefive billion two hundred and five billion two hundred and thirty-seven millionthirty-seven million第8页你学会了么？你学会了么？第9页