高中英语（译林版）必修第3册 Unit4

高中英语教学视频

（苏教译林版）

Unit 4

Scientists who changed the world

Unit 4-1 Welcome to the unit+Reading(1)Unit 4-2 Welcome to the unit+Reading(2)Unit 4-3 Grammar and usageUnit 4-4 Integrated skills(1)Unit 4-5 Integrated skills(2)Unit 4-6 Extended reading
Unit 4-7 Project
Unit 4-8 Assessment and further study