资源资源简介:
According to Richard Mabey, Keats has the biological evidence on his side. Autumn is not a time of slowing down, but a time of new beginnings and great movements of creatures. For example, just at the moment that Keats's "gathering swallows" (in To Autumn) are departing for Africa, millions of creatures are fleeing from the frozen north like Iceland, Greenland and Russia to winter along the east and south coasts of Britain. According to scientists, before falling, the leaves transfer their chlorophyll(叶绿素) and carbohydrates into the woody parts of the tree for safe-keeping over winter. What remains are the natural antioxidants(防老剂) in the leaves: the yellow and orange carotenoids(类胡萝卜素), and another protective chemical specially produced for autumn, the bright-red anthocyanin(花青素). High color is not a signal of deterioration(退化) and decline, but of detox(排毒的) ability and good health.
Copyright © 2005-2020 Ttshopping.Net. All Rights Reserved . |
云南省公安厅:53010303502006 滇ICP备16003680号-9
本网大部分资源来源于会员上传,除本网组织的资源外,版权归原作者所有,如有侵犯版权,请立刻和本网联系并提供证据,本网将在三个工作日内改正。