课时作业15 Canada—“The True North”
.阅读理解
(2017·湖北省黄石市示范三校元月联考)
One baobab tree in South Africa is so large that a popular pub has been established inside its trunk. Many local cultures consider baobab trees to be sacred (神圣的). Others use them for their nutritious fruits, eatable leaves and beautiful flowers.
But the size has not necessarily protected them. According to research published in Biological Conservation, two of Madagascar's baobab tree species will lose much of their available habitat in the next 70 years. One species may not survive to the next century. Madagascar is home to seven of the world's eight baobab species, six of which can be found nowhere else.
The study—by scientists from the French agricultural research center CIRAD—relied on satellite images and field work to develop population estimates and distribution models for three baobab species. All three trees are currently listed as endangered on the IUCN Red List. The study suggests that two of the species should now be reclassified as seriously endangered.
One of those species, A. perrieri, had the lowest current population, with just 99 trees observed during ten years of field study. The researchers estimate that climate change will decrease the habitat of this species from about 21,000 square kilometers today to just over 6,500 square kilometers in 2080.
【2016届高考英语人教版一轮复习:课时作业15】相关文章:
★ 【浙江专用】2014届高考英语一轮复习课时作业(十五)必修3Unit 5《Canada—“The True North”》
★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (70)
★ 四川省2016届高考英语一轮复习课时作业(19) Module 1 Life in the Future 外研版必修4
★ 【人教版】2014届高考英语一轮复习指导考点针对练:必修5 unit1《Great scientists》
★ 2017高考四川省广安市英语阅读理解一轮系列训练:3(含解析)
★ 【北京专用】2014届高考英语一轮复习方案课时作业:选修8 Unit 2 Cloning
★ 贵州省贵阳市2014高考英语(新人教版)一轮阅读训练(5)附答案
★ 【北京专用】2014届高考英语一轮复习方案课时作业:选修7 Unit 4 Sharing
★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (83)
★ 【浙江专用】2014届高考英语一轮复习课时作业(三十五)选修7Unit 5《Travelling abroad》
最新
2017-04-24
2017-04-24
2017-04-24
2017-04-24
2017-04-21
2017-04-21