外研版-必修1module5-speaking-and-vocabulary-课件

SpeakingVocabulary&9999999,999ninethousand,ninehundredandninety-nine99,999ninety-ninethousand,ninehundredandninety-nine999,999ninehundredandninety-ninethousand,ninehundredandninety-nine9,999,99999,999,999ninemillion,ninehundredandninety-ninethousand,ninehundredandninety-nineninety-ninemillion,ninehundredandninety-ninethousand,ninehundredandninety-nine999,999,999ninehundredandninety-ninemillion,ninehundredandninety-ninethousand,ninehundredandninety-nine②③①※canyouguesshowtoread:999，999，999，999123，456，789，123”，billionmillionthousandsaythesenumbers:2,578,16951,000,00085,6214,002,0062million,5hundredandseventy-eightthousand,1hundredandsixty-nine51million85thousand,6hundredand214million,andtwothousandandsixPractice:52,470,383100,000,000365,528,4621,000,000,00052million,4hundredand70thousand3hundredand831hundredmillion3hundredand65milloin,5hundredand28thousand,4hundredand621thousandmillion/1billion1/2a/onehalf1/3a/onethird2/3two-thirds1/4a/onequarter2/4two-quarters3/4three-quarters1/5afifth2/5two-fifths3/5three-fifths4/5four-fifthsFractionA/B，以基数词cardinal表示“A”，序数词ordinal表示“B”。分子大于“1”，分母加“S”Readthesefractions:2/55/89/103/85/6two-fifthsfive-eighthsnine-tenthsthree-eighthsfive-sixthsHowtosaydecimal:21/2=2.521/4=2.253/4=0.75123/10=12.3twopointfivetwopointtwofivepointsevenfivetwelvepointthreeReadoutthedecimalsbelow:0.52.518.27pointfivetwopointfiveeighteenpointtwosevenPractice:Readthefollowingout:1.1/2of6,000,0002.35,246,000plus12,800,0003.25%of200,000,000(threemillion)(fortyeightmillion,sixtythousand)(fiftymillion)1.Whatis1/2of6,000,000?3,000,0002.Howmuchis35,246,000plus12,800,000?48,046,0003.Whatis25%of200,000,000?50,000,0004.Howmuchis260,408,396plus5,264,700?265,673,0965.Whatis1/3of1,000,500,000?333,500,0006.Whatis10%of800,000,000?80,000,000GRAMMARTheearthisforty-ninetimeslargerthanthemoon.Theearthisforty-ninetimesaslargeasthemoon.Theearthisforty-ninetimesthesizeofthemoon.形容词和副词的倍数比较的用法：倍数词as+adj./adv.+aseg.twiceasbigasthreetimesaslongas倍数词adj./adv.的比较级+thaneg.twicebiggerthanthreetimeslongerthan2.WinterisfourtimescolderinHarbinthaninBeijing.WinterisfourtimesascoldinHarbinasinBeijing.3.MountQumolangmaisaboutsixtimeshigherthanMountTai.MountQumolangmaisaboutsixtimesashighasMountTai.4.Myaunt’shouseistwicelargerthanmyhouse.Myaunt’shouseistwiceaslargeasmyhouse.5.TomweighsovertwiceheavierthanLily.TomweighsovertwiceasheavyasLily.Homework:Exercise1&2onpage91