Unit 5 Poems 单元限时小卷-【高中必刷题】2023-2024学年新教材高中英语选择性必修第三册同步课件（人教版2019）

03 单元限时小卷 建议用时：50分钟 1 [江苏南通2023高二期末] The increase in primate （灵长类动物） ecotourism is causing stress-related behaviours in monkeys, according to a new study. The study, led by the University of Portsmouth, looked at the effect of a single engine motor boat approaching a community of proboscis monkeys. Those monkeys are unusual with their very long noses, which makes them appealing to tourists. And many of the boats carrying tourists approach the primates quickly and loudly, often reaching the river banks just a few metres away from the wildlife. The researchers conducted the experiment by approaching the monkeys in a motor boat with different speeds and travel distances—fast-close (approaching the monkeys for 10 seconds when 40 metres away at a speed of 14.4 km/hr), slow-close (approaching the monkeys for 40 seconds when 40 metres away at a speed of 3.6 km/hr), and slow-far conditions (approaching the monkeys for 20 seconds when 100 metres away at a speed of 3.6 km/hr). 刷阅读理解 2 The results showed that the monkeys displayed stress-related behaviours for longer in the fast-close and slow-close conditions and also reduced feeding as a result of the boat approaching in the fast-close condition. Once the boat started to approach, the proboscis monkeys showed repeated scratching （挠, 搔） and often moved quickly backwards to hide in the trees. This could potentially cause the monkeys to leave their safe sleeping sites and to go deep into the forest as it got dark, where they could face a higher risk of predation （捕食）. 刷阅读理解 “Collectively, our findings suggest that the approach of a single motor boat led to stress in proboscis monkeys when they were approached as closely as 60 metres from the other side of the river, regardless of the speed of approach,” said Dr Marina Davila Ross, lead author of the study. The researchers thus propose that guidelines for primate tourism in the riverside areas should include an approach speed of no more than 4 km/hr with