必修一 Unit 2(一） 2021届 高三北师大版英语一轮复习课时练习

高考提能练(三)　必修1　Unit 2　Heroes Ⅰ.阅读理解 A (2020·长沙四校一模) A tiny Alaska village has experienced a boom in tourism in recent years as polar bears spend more time on land than on Arctic sea ice. More than 2 000 people visited the northern Alaska village of Kaktovik in 2018 to see polar bears in the wild.The far north community lies in an area where increasingly higher temperature has sped up the movement of sea ice，the primary habitat (栖息地) of polar bears.As ice has gradually moved to deep water beyond the continental shelf，more bears are remaining on land to look for food. Polar bears have always been a common sight on sea ice near Kaktovik，but villagers started noticing a change in the mid­1990s.More bears seemed to stay on land，and researchers began taking note of more female bears making homes in the snow on land instead of on the ice to raise their babies.US Fish and Wildlife Service biologists began hearing reports of the increasing number of polar bears in the area in the early 2000s.As m