【阅读】
标题：Build a campus garden
变化：A student wrote a letter to campus newspaper suggesting to make a campus garden for 2 reasons. (A) Students can relax with flowers and trees (B) there is an empty land behind the scientist buildings which is suitable for being a garden
听力要点
【听力】
态度：The guy disagrees
原因1：It's cold for most of time here. Only blooming time for plants is summer break. During rest of time when campus is full, the flowers can't grow, the campus garden is meaningless.
原因2：The empty land is gonna be used to expand the scientist buildings
【阅读】
标题：Facial feedback
定义：We believe that our emotion causes our facial expression. But it is not true. It is our facial expression determines how we feel.
听力要点
【听力】
例子: The professor gives an example of an experiment. He gives out the same math problem to two groups of students. Everything is the same except one. He asks students in Group A to smile in the experiment, and asks students in Group B to present frown and other unhappy faces in the experiment. As a result, students in group A say they enjoy the math, while students in group B say they are tortured.
【阅读】
标题：priority effect
定义：Animal species, when first settling on certain territory, makes the territory less habitable for later species. This is esp. prevailing for small and weak species.
听力要点
【听力】
例子: For example, there is a type of small ants that net on ankasha trees. As the first group of settlers onto the tree, they destroy part of tree’s nectars and render it unable to produce nectars anymore. This is because another type of bigger ants, which feed on this nectar and are more aggressive than smaller ants, will no longer come to this tree for occupation. Through this small ants survive.
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