In addition, over the past 150 years, many non-native plants, mollusks(软体动物), insects, fish, birds, mammals, and diseases have found their way to Wisconsin. These “aliens” are often aggressive competitors with native wildlife, especially after they’ve left their own natural environments and controls.

　　Last but not the least, some native wildlife can become a problem when released from their natural population controls. When wolves are scarce and hunters too few, white-tailed deer will often strip(剥夺) the woods of native wildflowers and even certain tree species, when their populations are allowed to become too high. Canada geese are beautiful birds, but when city people feed native geese as if they were pets, their populations can rise to uncomfortable levels in urban areas, resulting in polluted waterways and manure-laden 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. Non-native species do affect the lives of native species.

　　B. Non-native species get along well with native species.

　　C. Too many Canada geese won’t cause problems.

　　D. Wolves can get along well with white-tailed deer.

　　7. The best title for the passage is _______.

【2016高考英语一轮复习方略 素能提升演练必修2 Unit5（北师大版）】相关文章：

★ 四川省2016届高考英语一轮复习课时作业（46） Module 4 Which English 外研版选修8

★ 四川省2016届高考英语一轮复习课时作业（48） Module6 The Tang Poems 外研版选修8

★ 【浙江专用】2014届高考英语一轮复习课时作业(二十三)必修5Unit 3《Life in the future》

★ 2017高考四川省广安市英语阅读理解一轮系列训练：15（含解析）

★ 安徽省淮南市2014高考英语一轮单项选择及文章训练（1）及答案

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (41)

★ 【浙江专用】2014届高考英语一轮复习课时作业(十)必修2Unit 5《Music》

★ 2014届高考英语一轮复习必修1参考答案（外研版）

★ 【优化方案】2017届高考英语二轮复习全国卷Ⅱ题型重组训练：第19组（含解析）

★ 2014届高考英语一轮复习课时作业(二十五)必修5Module 1《British and American English》（外研版）