最新英美报刊选读Unit8 Environmental Protection Return The Arctic is one of the last and most 3) [A.intensive B. extensive]continuous wilderness areas in the world,and its significance 4) [A.in preserving B.by preserving]biodiversity and genotypes is considerable.The increasing presence of humans 5) [A. fragments B.fragrances]vital habitats.The Arctic is particularly 6) .[A.susceptible B.suspicious]to the abrasion (of groundcover and to the disturbance of the rare reproduction places of the animals that are 7) [A.typical B.characteristic]to the region. The Arctic also 8) [A.holds B.seizes]1/5 of the Earth's water supply. Key:A BB A,AA B A 最新英美报刊选读_Unit 8 Environmental Protection The Arctic is one of the last and most 3) _______ [ A. intensive B. extensive] continuous wilderness areas in the world, and its significance 4) ________ [ A. in preserving B. by preserving]biodiversity and genotypes is considerable. The increasing presence of humans 5) _______ [ A. fragments B. fragrances] vital habitats. The Arctic is particularly 6) _______ [ A. susceptible B. suspicious] to the abrasion (磨蚀) of groundcover and to the disturbance of the rare reproduction places of the animals that are 7) _______ [ A. typical B. characteristic] to the region. The Arctic also 8) ________ [ A. holds B. seizes] 1/5 of the Earth's water supply. Key: A B B A, A A B A