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Unit 2Language preparationFact boxFact box1. The Tibetans have lived in the Himalayas for centuries and they have adjusted to the extreme conditions.2. In 1924, two British men were lost when their oxygen ran out.Expressions used to make decisions:Expressions used to make decisions:It’s hard to decide … however.It’s hard to decide … however.Take everything into consideration, I …Take everything into consideration, I …In spite of …, I still believe…In spite of …, I still believe…I am likely to think… because…I am likely to think… because…My choice will be…My choice will be…SamplesA: Mountain climbing is dangerous and climbers have to face a lot of other dangers besides the cold and thin air. But according to my knowledge, people can only survive above the death zone for a few days even with extra oxygen. In spite of fact that A: Mountain climbing is dangerous and climbers have to face a lot of other dangers besides the cold and thin air. But according to my knowledge, people can only survive above the death zone for a few days even with extra oxygen. In spite of fact that Tibetans have survived in such extreme conditions for centuries, I still believe it is almost impossible for the climbers from other regions to climb Mount Everest without extra oxygen.Tibetans have survived in such extreme conditions for centuries, I still believe it is almost impossible for the climbers from other regions to climb Mount Everest without extra oxygen.B: Since Tibetans have lived in Himalayas for centuries. It is possibleB: Since Tibetans have lived in Himalayas for centuries. It is possiblefor other people to adjust to such high attitude if they follow a natural process of training. Take th...