Paragraph 4 Use of direct speech adds dramatic tension. Short sentences employed to emphasise the excitement of the crew. Paragraph suggests the situation is very unusual. Paragraph 7 Plight of the bear emphasised by its description. Relatively familiar and comic instance contrasts with the desperate situation of the bear and re-inforces the bear's loss of dignity.
Further contrast is made through the smell of cooking food and the hunger of the bear.
Adds credibility and authority. The imminent death of the bear is barely described and contrasts with the beautiful description of the dawn. In Paragraph 10 the commentary begins. Again stresses urgency. Tackles the critics who claim it is just another scare story.