2019-2020学年度人教版必修五 Unit 3 Life in the futurePeriod1Reading课件(98张)
2019-2020学年度人教版必修五 Unit 3 Life in the futurePeriod1Reading课件(98张)第2页

Make a list of the problems human being are facing today.

Discussion:

Housing Population Pollution Global warming Traffic Hunger Literacy…

acid rain, growing areas of desert, overlarge world population, lack of enough drinking water …