一、 议论文
1. 现象解释型
（1） 阐述现象
（2） 分析原因或影响因素
（3） 存在的问题或作者观点
A
Nowadays _________is a common phenomenon in society. For example, _______.
People like / prefer (doing ____) because _________, __________.
_____________ do more (good) than (harm) to us. For one thing, ___________. For another, ______________________.
B
Recently ________ has aroused public concern. It _________________________.
_____________________ do both (good) and (harm) to us. On the one hand, ______________. On the other hand, ______________________________.
Useful sentences:
1. Never in history has the issue of …… been more visible than ……
2. Nowhere in world has the problem of ……..been as evident as ……
3. Now there is a growing awareness / recognition of the necessity of ……
4. Now, people in growing number are beginning / coming to realize that ……
5. Recently the problem / issue / question of …… has b...