Lesson91课件

000，RevisionTalkaboutyourselvesdisease/di?zi:z/cn疾病=illnesskinddiseasebaddiseasesNewwords:TB（tuberculosis/t?u:?b?:k?u:?l?usis/）un肺结核Newwords:hasTBNewwords:TB（tuberculosis/t?u:?b?:k?u:?l?usis/）un肺结核onehundred/twohundred/hundredsof数百Newwords:1，threehundredandtwelveNewwords:billion/?bil??n/n十亿fivebillionbooks五十亿本书十三亿人口onebillion，000，000，fourhundredthousand，000onethousand/threethousand/thousandsof数千1，000onebillion/fivebillion/billionsof数十亿Newwords:million/?mil??n/n百万twentymillionthreehundredandtwentymillionninemillion，000onemillion/fourmillion/millionsof数百万1，threehundredmillionpeopleonepointthreebillionpeopleNewwords:decide/di?s?id/，