人教版（2019）高中英语必修第一册Unit 5 Languages Around the World 第1课时课件（共16张PPT）(内含视频不能播放).pptx
Unit 5 Languages Around the World
Period 1 Listening and Speaking
Task 1
(Activity 1—Activity 5)
Warming-up
(1) Do you know how many working languages there are at an international conference?
(2) What are the official languages of the UN?
(3) What do you suppose the people are doing behind...