外研版必修1 Module 5 A Lesson in a Lab Vocabulary and speaking 课件(29张PPT)

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名称 外研版必修1 Module 5 A Lesson in a Lab Vocabulary and speaking 课件(29张PPT)
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科目 英语
更新时间 2020-05-10 15:18:18

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课件29张PPT。Vocabulary and SpeakingModule 5 Book 1¥22,500,000数词的读法基数词的读法e.g. 23—
89—twenty-three eighty-nine1. 先“几十”, 再“几”,中间用连 字符。e.g. 223—
416—
809— two hundred and twenty-three
four hundred and sixteeneight hundred and nine2. 先“几百”, 再加and,再加末两位。3. 1000以上的数从后向前数,每三位数加“,”;第一个“,”号前为thousand; 第二个“,”号前为million。
e.g. 1,001—
9,743—
750,000,000— one thousand and onenine thousand, seven hundred and forty-threeseven hundred and fifty
millionCan you say the following in English correctly?12,000
12,000,000twelve thousandtwelve millionWork in class879,457
879,457,000eight hundred, seventy-nine thousand,four hundred,fifty-seveneight hundred, seventy-nine millon,four hundred,fifty-seven thousand序数词的读法序数词一般以与之相应的基数词加-th构成,如:tenth(第十),但下面这些基数词在变序数词时, 有特别的地方。1. one — two —
three— five —
eight — nine —
twelve—firstsecondthirdfiftheighthninthtwelfth2. 以one, two, three, five, nine收尾的多位数词,要照第一条方法变。
e.g. twenty-one—
ninety-nine—
a hundred and fifty-three — twenty-firstninety-ninth a hundred
and fifty-third第45 ——
第99 ——
第156 ——
ninety-ninthforty-fiftha hundred and fifty-sixthWork in classCan you say the following in English correctly?分数的读法基数词表示分子,序数词表示分母,分子大于1时,序数词要用复数。
e.g. 1 / 4 —
2 / 3—
7 / 9—
5 / 12— one-fourthtwo-thirdsseven-ninthsfive-twelfths特殊的表达法?—
?—
?— a / one halfa / one quarterthree quarters1/5
5/8
9/10
45/87 one fifthfive eighthsnine tenthsforty-five eighty-sevenths Can you say the following in English correctly?Work in class小数的读法7.8—
0.125—
14.397— seven point eight(zero) point one two fivefourteen point three nine seven0.5
1.23
23.45
100.32(zero) point five
point seven sixone point two threetwenty-three point four fiveone hundred point three two Work in classCan you say the following in English correctly?百分数的读法27% —
45% —
86% —twenty-seven percent forty-five percent eighty-six percent37%
68%
99% sixty-eight percentninety-nine percentthirty-seven percentCan you say the following in English correctly?Work in class Can you say the following in English correctly?Work in class7/8
0.637
27%
99,000
第49seven eighths(zero) point six three seventwenty-seven percentninety-nine thousandforty-ninth 23/65
13.259
12,330,229
twenty-three sixty-fifth thirteen point two five ninetwelve million,three hundred,thirty thousand,two hundred ,twenty-two Read these questions aloud and say the answers.Work in class3,000,0001.What is ? of 6,000,000?2.How much is 35,246,000 plus 12,800,000?48,046,000 3.What is 25% of 200,000,000?50,000,0004.How much is 260,408,396 plus 5,284,700?265,693,0965.What is ? of 1,000,500,000?750,375,0006.What is 10% of 800,000,000?80,000,0001. Finish Exercise 9 on P93.
2. Work in pairs. Give your partner five sums. Use numbers over a million.