对比效应
参考答案：
当社会比较信息是一种比较标准并对个体的自我评价有伤害时，个体会把信息排除在自我概念之外，产生对比效应。
— How do you usually go to school every day?
— foot. It’s not far from my home.
A．On
B．In
C．By
D．With
--- What’s your question?
---I want to know _________.
A．how can trees help us
B．how do trees help us
C．how trees help us
D．how can we help trees
