北師大版高中英語必修2unit5rhythm素能提升演練-展示頁
2024-12-15 00:07本頁面
【正文】 tural wildlife habitat areas are left each year. Some wildlife species, such as deer, rabbits and chipmunks, are adaptable to many conditions, but other creatures have very specific plant, moisture and temperature requirements. These are the endangered species which we risk losing if we don?t preserve enough amounts of habitat for their survival. Next, because many types of plants and animals have specific habitat requirements, climate change could cause disastrous losses of wildlife species from Wisconsin. A one or two degree change in average annual temperature will translate into large changes in Wisconsin, affecting snow cover in the winter and excess heat in the summer. Plants and wildlife are sensitive to moisture changes, so they will be harmed by this dryness. Unfortunately, trees and plants can?t simply pick up and move to a more hospitable location. Instead, they will die where they stand, exposing and starving the wildlife that depend on them. Drought tolerant plants and trees will gradually spread to replace them by seed, but this process takes time. In many parts of Wisconsin, natural habitat is chopped up and isolated in small islands. In addition, over the past 150 years, many nonnative plants, mollusks(軟體動物 ), insects, fish, birds, mammals, and diseases have found their way to Wisconsin. These “aliens” are often aggressive petitors with native wildlife, especially after they?ve left their own natural environments and controls. Last but not the least, some native wildlife can bee a problem when released from their natural population controls. When wolves are scarce and hunters too few, whitetailed deer will often strip(剝奪 ) the woods of native wildflowers and even certain tree species, when their populations are allowed to bee too high. Canada geese are beautiful birds, but when city people feed native geese as if they were pets, their populations can rise to unfortable levels in urban areas, resulting in polluted waterways and manureladen lawns. 5. What?s the second paragraph mainly about? A. Endangered wildlife. B. Habitat Loss. C. Adaptation to conditions. D. Population growth. 6. What can we learn from the passage? A. Nonnative species do affect the lives of native species. B. Nonnative species get along well with native species. C. Too many Canada geese won?t cause problems. D. Wolves can get along well with whitetailed deer. 7. The best title for the passage is _____. A. Wele to Wisconsin B. An introduction to Wisconsin C. Animals and plants in Wisconsin D. Key threats to wildlife in Wisconsin 8. The author?s attitude towards wildlife in Wisconsin is “_
教學(xué)課件相關(guān)推薦
鄂ICP備17016276號-1