(共19张PPT)
理解 课文精研读
UNIT 2 Out of this world
rewarding
lightning
protection
outside
spacesuits
freeze dried
pipes
nutrients
discipline
equipment
个d品(共19张PPT)
理解 课文精研读
UNIT 1 Wish you were here
nations
ten
valleys
ethnic
the Bering Strait
About one fifth/one
out of five
Vancouver
French
Celtic
ranked
个d品(共18张PPT)
理解 课文精研读
UNIT 3 Back to the past
1492
Spain
over 200
28，000
30
Caribbean
4
strengthen
Chinese
culture
the New World
个d品(共17张PPT)
理解 课文精研读
UNIT 4 Protecting our heritage sites
protection
destruction
Natural
water
Tourists
development
disasters
outcomes
people's lives
ourselves
个d品
