新人教三（下）Unit6PartB第5课时Let'slearnListenandchant

PEP版英语三年级（下）PartBLet’s

learn&ListenandchantUnit6

NumbersinlifeWarmingup:Let’scounttogetherPresentation:Let’slearnWhatnumberscanyouseeinthepictures?LookandsaysixteenWhatnumberscanyousee?Look!It’ssixteen

now.LookandsayseventeenWhatnumberscanyousee?IliveinBuilding17.LookandsayeighteenWhatnumberscanyousee?Eighteensecondsleft.Newwordeighteen/ˌeɪˈtiːn/num.(数词)十八Ibuyfourpensforeighteenyuan.我用十八元买了四支钢笔。eight八eighty八十¥18LookandsaynineteenWhatnumberscanyousee?We’lltaketheNo.19bus.Newwordnineteen/ˌnaɪnˈtiːn/num.(数词)十九Mynewcapisnineteenyuan.我的新帽子十九元。nine九ninety九十¥19LookandsayWhatnumberscanyousee?Howmuchisthisboat?It’stwentyyuan.onetwothreefourfivesixseveneightnineteneleventwelve基数词很容易，_____至_____单独记。01212121133445566800zero772210101111998基数词11—20后面加____变十几，_______、______看仔细，________只有一个t。teenthirteenfifteeneighteenthirteenfourteenfifteensixteenseventeeneighteennineteen1313141415151616171718181919整十后面加______，_________，却是很奇怪。twenty2020tytwenty基数词的用法：（表示年龄）2Ihaveeightbooks.1Mysisteristwelveyearsold.3It’sseveno’clock.Timetogetup.4Thistoybearistwentyyuan.5MybrotherisinClassone.6Threeandfivemakeseight.（表示数量）（表示时间）（表示价格）（表示编号）（用于计算）twelveeightseventwentyoneThreefiveeightWhatnumberscanyousee?Presentation:ListenandchantLookandsaysixteen seventeeneighteennineteen twentyListenandchantOneminute,tick.Twominutes,tock.Sixteen,seventeen,eighteen.Don’twatchtheclock.滴答滴答形容钟表的声音ListenandchantNineteenminutes,tick.Twentyminutes,tock.Timegoesslowly,Whenyouwatchtheclock!走得慢ListenandchantDon’twatchtheclock.Timegoesslowly,whenyouwatchtheclock!Doyoufeelthesame?Practicethirteenseventeenfourteensixteennineteenfifteeneighteen

哪些“十几”不是个位直接加teen的？1Thereare_____daysinaweek.AABBseveneleven2Ican

see

_____boxesonthedesk.CCtwelveAABBthirtenthreeteenCCthirteen

Chooseandtick

eighteennineteen—Howmuchis…?—It’