2019年12月英语六级考试阅读提升2

同学们可能在刷题数量达到一定程度后会遇到瓶颈，正确率始终上不去，这就需要大家换一个思维去思考，比如重新回到基础练习，不看正确选项，先通读全文，看自己是否能够理解文章含义，再慢慢提升自己。今天坦途网英语六级考试频道就带来阅读提升练习，大家可以查漏补缺。

Mimicry in Plants

Plant adaptations can be remarkably complex. Certain species of orchids, for instance, imitate female bees, other plants look and smell like dead animals, and still others have the appearance of stones. These strange adaptations to life represent just a few of the sophisticated means by which plants enhance their chances of survival. Mimicry in plants or animals is a three part system. There is a model: the animal, plant or substrate being initiated. There is a mimic: the organism that imitates the model. And there is a signal receiver or dupe: the animal that cannot effectively distinguish between the model and the mimic. Mimetic traits may include morphological structures, color patterns, behaviors or other attributes of the mimic that promote its resemblance to a model. That model may be either an unrelated species or an inanimate object, such as the background against which an organism spends most of its time. Mimicry is not an active strategy on the part of an individual plant; flowers do not deliberately trick or deceive animals into visiting them. Mimicry arises as the result of evolution through natural selection and the occurrence of random genetic mutations that lead over many generations to the appearance of favorable characteristics. If such traits help to camouflage a plant, for example, the plant is likely to have a survival advantage over other plants that are less well camouflaged. The plant will leave more descendants, thereby passing the advantage to the next generation. For natural selection to favor the evolution of mimicry, the mimicry must derive a reproductive advantage from modeling itself after another organism or object: its fitness, measured as the number of offspring produced that survive into the next generation, must be increased as the result of deception.

英语六级考试是可以刷分的，所以上半年成绩不理想的同学可以继续复习，现在时间还很充裕，大家都是有学习基础的，可以通过本文提升训练，查阅资料弄懂本文主旨，好记性不如烂笔头，遇到不懂的单词要记下来，没有把握的地方一定要做好笔记，以后复习再巩固一遍，相信大家都会成功的。