1. Boreal owls range over a much larger area than do other owls of similar size. 北方猫头鹰的活动范围比其他类似体型的猫头鹰的活动范围要大得多。
2. The mightiest are native to North America, but big trees grow all over the globe, from the tropics to the boreal forests of the high latitudes. 最高大的树原产于北美，但大树遍布全球——从热带到高纬度的北方森林。
3. The boreal forest is transcontinental. 北方森林是横贯大陆的。
4. Canada's boreal forest is home to the oil sands. 加拿大的寒带森林是油砂的成因。
5. The largest wilderness area is the Boreal Forest. 最大的荒野地区是北方森林。
