Reading:【文章要点】介绍了一种predator saturation方式。植物利用特殊方法保护自 己繁衍的方式，像一次produce很多seeds，让想吃其种子的捕食者吃都吃不完，之后再不固 定的reproduce，让动物无法依赖其种子当固定食物，借此来控制predator的量。
Listening:【教授举例】举例bamboo来证明。
1)bamboo约120年产一次seed之后很长时间都不再产种，使之不会成为predator固
定食物来源。
2)bamboo每次产的seeds很多，动物一次不可能全部吃掉所有的seeds，这样足够的种 子能确保此物种的延续。
参考答案:
The reading passage explains a definition of predator saturation. It states that plants use this special way to protect themselves from extinction. A species produces so many seeds that consumers cannot possibly eat them all. Then it reproduces at different intervals for its predators not to rely on its seeds as the only food resources.
In the listening passage,the professor gives two examples to illustrate this. Seed producing trees such as bamboo in Southeast Asia produce large crops of seeds almost every 120 years. Then the seeds won't be available for a long period of time. Thus it won’t be the only food resource of its predators. Another example is that bamboo produces so many seeds that consumers cannot possibly eat them all，leaving enough to reproduce.
By these means，he proves that plants can saturate their potential predators.
Reading:【文章要点】心理学概念comfort zone是指人们通常偏向于待在自己熟悉的 环境里而不愿意去冒险尝试新的东西。
Listening:【教授举例】教授举了自己朋友的例子。他有一个朋友很想当影评家，但最 终当了新闻记者。几年之内，他已经适应了新闻记者的工作，并且做得很出色。后来有机 会可以当影评家，但是他却没有去，因为他已经适应了目前的舒服的工作。
参考答案'
The reading passage explains a definition of comfort zone. It states that people have a natural tendency to stay in the area that they are familiar with and usually do not risk trying something new.
In the listening passage,the professor gives an example to illustrate this. His friend would eagerly like to be a movie critic,but he ended up finding a job as a news reporter. Staying on this job for several years,he had adapted to it and excelled at his work. Then he was given a chance to be a film reviewer as somebody quit,but he chose not to change his profession as he was already used to being a news reporter and that made him more comfortable.
By these means，he proves that a person who has established a comfort zone in a particular axis of his or her life will tend to stay within that zone without stepping outside of it.