选择性必修第2册 Unit 6 Survival-【创新教程】2024高考英语总复习大一轮课时作业word（新教材，外研版）

Unit 6　Survival Ⅰ.阅读理解 “A lot of the time when climate change is discussed in mainstream media, people are asking ‘can humans overcome this？’， or ‘what technology can solve this？’. It's high time we recognized that animals also have to adapt to various changes. We know some animals change their skin colors to escape from natural enemies or due to environment pollution，” says Ryding. “The climate change that we have created is putting a lot of pressure on them, and some species try to adapt by shapeshifting (变形). ” Strong shapeshifting has particularly been reported in birds. Several species of Australian parrot have shown, on average, a 4%­10% increase in beak (鸟喙) size since 1871, and this is positively linked with the summer temperature each year. North American dark­eyed juncos, a type of small songbird, had a link between increased beak size and short­term temperature extremes in cold environments. There have also been reported changes in mammalian species. Researchers have reported tail length increases in wood mice and leg size increases in masked shrews (鼩鼱)． “The increases in some body parts size we see so far are quite small—less than 10%—so the changes are unlikely to be immediately noticeable，” says Ryding. “However, some body parts such as ears are predicted to increase.” Ryding intends to investigate shapeshifting in Australian birds firsthand by 3D scanning museum bird specimens from the past 100 years. It will give her team a better understanding of which birds are changing their body parts and why. “Shapeshifting does not mean that animals are coping with climate change and that all is ‘fine’，” says Ryding. “It just means they are adapting to survive it—but we're not sure what the other ecological consequences of these changes are, or indeed that all species are capable of changing and surviving.” [语篇解读]　这是一篇说明文。主要介绍了一些动物为了适应气候等环境变化，发生身体某些部位的变形。 1．What may cause animals' shapeshifting according to Ryding? A．Human hunting. B．Climate change. C．Natura