《英语视听》课程教学资源（PPT课件）Step By Step 3000 book 3 unit 4

Part 1 Warming up B Mir/peace和平号 cosmonaut astronaut 冬re-entry重返 collision microbe细菌、微生物 flawless

Part 1 Warming up B ❖ Mir/peace 和平号 ❖ cosmonaut = astronaut ❖ re-entry重返 ❖ collision ❖ microbe细菌、微生物 ❖ flawless

Part 1 Warming up 8 15 years the Soviet Union,now Russia 4.2 billion (for building and maintaining) 10 years(1986-1996) 135 tons 9,900 cubic feet 63 feet wide and 85 feet long 104 cosmonauts,astronauts 46 438 days 747 days,three Mar.23rd

Part 1 Warming up B 15 years the Soviet Union, now Russia $ 4.2 billion (for building and maintaining) 10 years (1986 — 1996) 135 tons 9,900 cubic feet 63 feet wide and 85 feet long 104 cosmonauts, astronauts 46 438 days 747 days, three Mar. 23rd